Description:

FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10, Rule 13]

BATTERY ACCOMMODATING STRUCTURE

HERO MOTOCORP LIMITED, an Indian Company at: The Grand Plaza, Plot No.2, Nelson Mandela Road, Vasant Kunj- Phase -II, New Delhi, India, 110 070

THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE INVENTION:
[001] The present invention relates to a battery accommodating structure of an electric vehicle accommodating a battery.

BACKGROUND OF THE INVENTION:
[002] A vehicle in particularly a two-wheeled electric vehicle runs on a power provided by a battery accommodated within at least one battery accommodating structure provided in the vehicle. Conventionally, the battery accommodating structure is made of metal in order to accommodate batteries of heavier weight. However, the metallic battery accommodating structure has some limitations. For example, the substantial weight of the metallic battery accommodating structure contributes to overall weight of the vehicle, which affects performance of the vehicle. Further, due to sharp edges of the metallic battery accommodating structure, there is a chance of battery getting scratches over the walls while removing or installing the battery within the metallic battery accommodating structure.

[003] Furthermore, an electrical connector is mounted on the battery accommodating structure for curtailing the time required for connecting or disconnecting the electrical connectors to the battery. However, mounting electrical connectors on the walls of the metallic battery accommodating structure precisely is a difficult task. Imprecise mounting of the electrical connector leads to misalignment between the electrical connector mounted on the metallic battery accommodating structure and the corresponding connector provided on the battery. The misalignment between the electrical connectors may lead to damage to the electrical connectors, reduced battery efficiency, loose fitting of the battery within the battery accommodating structure, increased maintenance requirements, and safety risks.

[004] Thus, there is a requirement of solving one or more than one aforesaid problem.

SUMMARY OF THE INVENTION:
[005] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[006] In one aspect the present invention providesa battery accommodating structure of a vehicle, the battery accommodating structure accommodating a battery of the vehicle, the battery accommodating structure being a top open box structure, the battery accommodating structure comprising a metal box and a plastic part disposed around a first top end of the metal box.

[007] In an embodiment of the inventionthe plastic part comprises a first portion disposed around the first top end of the metal box, a second portion disposed at about a first opening of the metal box, and a second opening in the second portion ; and a first connector element accommodated in the second opening, the first connector element providing an electrical connection to the battery.

[008] In another embodiment of the invention, the metal box comprises a first wall , second wall connected to first wall to define the metal box , and at least a first opening on the second wall and at least one of:
the second wall comprises at least a third opening;
the first wall comprises a third portion defining a bottom portion of the metal box and a fourth portion extending from the third portion in an upward direction, the fourth portion defining a peripheral portion of the metal box ; and
at least one of the first wall and the second wall comprises a first strengthening portion and a second strengthening portion .

[009] In yet another embodiment of the invention, the first strengthening portion comprises a first strengthening arm interconnecting the first wall and the second wall along a first lateral side and a second strengthening arm interconnecting the first wall and the second wall along a second lateral side. Further, the second strengthening portion comprises a third strengthening arm interconnecting the first wall and the second wall along the first lateral side , a fourth strengthening arm interconnecting the first wall and the second wall along the second lateral side, a fifth strengthening arm interconnecting the first wall and the second wall along a first bottom side, and a sixth strengthening arm interconnecting the first wall and the second wall along a second bottom side. The first strengthening arm and the secondstrengthening arm being disposed at a first height H1; the third strengthening arm and the fourth strengthening arm being disposed at a second height H2, the first height H1 being different from the second height H2.

[0010] In still another embodiment of the invention, the first wall being a “U” shaped wall and the second wall having being a “L” shaped wall.

[0011] In a further embodiment of the invention, a first guide element disposed between the plastic part and the metal box at a first location and a second guide element disposed between the plastic part and the metal box at a second location, the first guide element and the second guide element protruding inwardly into the metal box, the first guide element and the second guide element guiding the battery during insertion into the metal box.

[0012] In a furthermore embodiment of the invention, the connector element faces towards the first wall of the metal box and is adapted to come in electrical contact with a corresponding connection portion formed in the battery when the battery is inserted in the metal box.

[0013] In an embodiment of the invention, the metal box comprises a first pivot defining member and a second pivot member for pivotally connecting the top open box structure to a frame structure of the vehicle , the first pivot defining member and being spaced apart from the second pivot member along a length direction of the metal box.

[0014] In another embodiment of the invention,the first pivot defining member comprises a first bracket element receiving a first knuckle element , the first bracket element coupling the first knuckle element between the bottom portion and the peripheral portion of the metal box; and the second pivot defining member comprises a second bracket element receiving a second knuckle element , the second bracket element coupling the second knuckle element between the bottom portion and the peripheral portion of the metal box .

[0015] In another aspect of the invention, there is provided an electric vehicle, comprising a body frame, comprising a lower frame member extending from a head tube; a first battery accommodating structure disposed on a first side of the lower frame member , the first battery accommodating structure receiving a first battery and pivotally connecting the first battery to the lower frame member, a second battery accommodating structure disposed on a second side of the lower frame member, the second battery accommodating structure receiving a second battery and pivotally connecting the second battery to the lower frame member ;the first battery accommodating structure being a top open box structure, and comprising a first metal box and a first plastic part disposed around a first top end of the first metal box; the second battery accommodating structure being a top open box structure and comprising a second metal box and a second plastic part disposed around a second top end of the second metal box .

[0016] One advantage of the present invention includes a significant reduction in weight of the battery accommodating structure without compromising the strength. The reduction in weight of the battery accommodating structure leading to an increase in vehicular performance. Other advantage of the present invention is a reduction in manufacturing time, a reduction in effort required, an increase in production capacity and a decrease in manufacturing cost to make the battery accommodating structure.

[0017] One advantage of the present invention is that the scratching between walls of the battery accommodating structure and the battery is prevented. Another advantage of the present invention is that the electrical connection between the battery and the vehicle can be attained only by inserting the battery in the battery accommodating structure, which reduces a time and an effort required for electronically coupling the battery with the vehicle.

[0018] A further advantage of the present invention is that a proper alignment between the battery and the battery accommodating structure is maintained, which lead to optimum battery efficiency, a lower maintenance requirement, and increased safety. One of the advantages of the present invention includes a better weight carrying capacity in comparison to existing battery accommodating structure. One of the advantages of the present invention include proper guiding of the battery during the installation within the battery accommodating structure. One of the advantages of the present invention includes an ease in removal and installation of the battery from the battery accommodating structure. One of the advantages of the present invention includes a reduction in time and effort required for manufacturing the battery accommodating structure.

[0019] To further clarify the advantages and features of the invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE FIGURES:
[0020] In order that the invention may be readily understood and put into practical effect, reference will now be made to exemplary embodiments as illustrated with reference to the accompanying drawings, where like reference numerals refer to identical or functionally similar elements throughout the separate views. The figures together with a detailed description below, are incorporated in and form part of the specification, and serve to further illustrate the embodiments and explain various principles and advantages, in accordance with the present invention where:

[0021] Figure 1 illustrates a first side view of the electric vehicle in accordance with an embodiment of the invention;

[0022] Figure 2 illustrates a first side view of a frame structure of the vehicle in accordance with an embodiment of the invention;

[0023] Figure 3 illustrates a second side view of the frame structure of the vehicle in accordance with an embodiment of the invention;

[0024] Figure 4 illustrates an exploded view of a battery accommodating structure of the vehicle in accordance with an embodiment of the invention;

[0025] Figure 5 illustrates an isometric view of the battery accommodating structure showing a first wall and a second wall in connected state in accordance with an embodiment of the invention;

[0026] Figure 6 illustrates an isometric view of the battery accommodating structure showing the first wall and the second wall in disconnected state in accordance with an embodiment of the invention; and

[0027] Figure 7 illustrates an exploded view of a first pivot defining member and a second pivot defining member of the battery accommodating structure in accordance with an embodiment of the invention.

[0028] It may be noted that to the extent possible, like reference numerals have been used to represent like elements in the drawings. Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have been necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of aspects of the present invention. Furthermore, one or more elements may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

Detailed Description of the Invention:
[0029] For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.

[0030] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the invention and are not intended to be restrictive thereof.

[0031] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0032] Reference throughout this specification to “an aspect”, “another aspect” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrase “in an embodiment”, “in another embodiment”, and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

[0033] The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that one or more devices or sub-systems or elements or structures or components proceeded by "comprises... a" does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or other components or additional devices or additional sub-systems or additional elements or additional structures or additional components.

[0034] As used herein, and unless the context dictates otherwise, the terms "coupled to", “connected to”, “operably connected to”, and “operatively connected to” are intended to include both direct connection / coupling (in which two elements that are coupled / connected to each other contact each other) and indirect coupling / connection (in which at least one additional element is located between the two elements). Therefore, the terms "coupled to" and "coupled with" are used synonymously. Similarly, the terms “connected to” and “connected with” are used synonymously.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one ordinary skilled in the art to which this invention belongs. The device, methods, and examples provided herein are illustrative only and not intended to be limiting.

[0036] The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as being essential to the practice of the invention.

[0037] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all Markush groups used in the appended claims.

[0038] Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[0039] The terms “front / forward”, “rear / rearward / back / backward”, “up / upper / top”, “down / lower / lower ward / downward, bottom”, “left / leftward”, “right / rightward” used therein represents the directions as seen from a vehicle driver sitting astride.

[0040] While the present invention is illustrated in the context of a vehicle, however, cover and aspects and features thereof can be used with other types of vehicles as well. The terms “vehicle”, “two wheeled vehicle” and “motorcycle” have been interchangeably used throughout the description. The term “vehicle” comprises vehicles such as motorcycles, scooters, bicycles, mopeds, scooter type vehicles, All-Terrain Vehicles (ATV) and the like.

[0041] Referring to Figure 1,there is illustrated a first side view of an electric vehicle (10). The electric vehicle (10) comprises, inter-alia, a frame structure (14) supporting a front fork (12), a front ground engaging member (16), a front fender (18), a headlight (20), a rear ground engaging member (22), a steering handle bar (24), a motor unit (26), a seat (28), a tail light (30), a rear cushion (32), a rear fender (34), a front mirror (36), a transmission unit (38), a first battery (40) and a second battery (not shown).

[0042] Referring to Figure 2 and Figure 3, the frame structure (14) of the vehicle (10) comprise a head pipe (44), an upper frame member (46) extending from the head pipe (44) in a rearward direction, a lower frame member (48) extending from one of the upper frame (46) and head pipe (44) in a downward-rearward direction and in a substantially rearward direction thereafter. The frame structure (14) further comprises a first pivot frame member (50) and a second pivot frame member (52) extending from the upper frame member (46) in the rearward-downward direction and connected with the lower frame member (48).

[0043] The electric vehicle (10) further comprises a first battery accommodating structure (100)disposed on a first side of the lower frame member (48) and a second battery accommodating structure is (200) disposed on a second side of the lower frame member (48). The first battery accommodating structure (100) receiving the first battery (40) and pivotally connecting the first battery (40) to the lower frame member (48) and the second battery accommodating structure (200) receiving the second battery (42) and pivotally connecting the second battery (42) to the lower frame member (48).

[0044] It may be noted that the electric vehicle (10) may include other parts which may not be relevant for explaining the present invention and hence not shown and described.

[0045] Referring to Figure 4, the first battery accommodating structure (100) is a top open box structure, the battery accommodating structure (100) comprising a metal box (102) and a plastic part (112) disposed around a first top end (110) of the metal box (102).The plastic part (112) comprises a first portion (114) disposed around the first top end (110) of the metal box (102) and a second portion (116) disposed at about a first opening (108) of the metal box (102). Further, the plastic part (112) comprises a second opening (118) in the second portion (116) for accommodating a first connector element (120). In an embodiment of the invention, the first connector element (120) providing an electrical connection to the first battery (40).

[0046] Further, the metal box (102) comprises a first wall (104) and a second wall (106) connected to the first wall (104). The connection between the first wall (104) and the second wall (106) defines the metal box (102). In an embodiment of the invention, the first wall (104) is a “U” shaped wall and the second wall (106) having being an “L” shaped wall best seen in the Figure 6. The “U” shape of the first wall (104) and “L” shape of the second wall (106) makes the assembly process of the metal box (102) less complex and less time consuming.

[0047] In an embodiment of the invention, at least a first opening (108) is provided on the second wall (106). In another embodiment of the invention, the second wall (106) comprises at least a third opening (122). The third opening (122) is provided to reduce the weight of the metal box (102). In an embodiment of the invention, the first opening (108) is adapted to accommodate the first connector element (120).

[0048] Further, the first wall (104) comprises a third portion (124)and a fourth portion (128) extending from the third portion (124) in an upward direction. The third portion (124) defines a bottom portion (126) of the metal box (102) and the fourth portion (128) defines a peripheral portion (130) of the metal box (102). In an embodiment of the invention, at least one of the first wall (104) and the second wall (106) comprises a first strengthening portion (132) and a second strengthening portion (134).

[0049] Now referring to Figure 5 and Figure 6, the first strengthening portion (132) comprises a first strengthening arm (136) interconnecting the first wall (104) and the second wall (106) along a first lateral side (138) and a second strengthening arm (140) interconnecting the first wall (104) and the second wall (106) along a second lateral side (142). Similarly, the second strengthening portion (134) comprises a third strengthening arm (144) interconnecting the first wall (104) and the second wall (106) along the first lateral side (138) and a fourth strengthening arm (146) interconnecting the first wall (104) and the second wall (106) along the second lateral side (142). Further, a fifth strengthening arm (148) interconnects the first wall (104) with the second wall (106) along a first bottom side (150), and a sixth strengthening arm (152) interconnects the first wall (104) with the second wall (106) along a second bottom side (154).

[0050] In an embodiment of the invention, the first strengthening arm (136) and the secondstrengthening arm (140) being disposed at a first height (H1), and the third strengthening arm (144) and the fourth strengthening arm (146) being disposed at a second height (H2). In an embodiment of the invention, the first height (H1) is different from the second height (H2). For example, in a preferred embodiment of the invention, the first strengthening arm (136) and the secondstrengthening arm (140) are provided in proximity to the first top end (110), and thethird strengthening arm (144) and the fourth strengthening arm (146) are provided in proximity to the bottom portion (126).

[0051] Further, the battery accommodating structure (100) comprises a first guide element (156) disposed between the plastic part (112) and the metal box (102) at a first location and a second guide element (158) disposed between the plastic part (112) and the metal box (102) at a second location. In an embodiment of the invention, the first guide element (156) and the second guide element (158) protruding inwardly into the metal box (102). The first guide element (156) and the second guide element (158) guiding the first battery (40) during insertion into the metal box (102).

[0052] In an embodiment of the invention, the first connector element (120) faces towards the first wall (104) of the metal box (102) and is adapted to come in electrical contact with a corresponding connection portion (not shown) formed in the first battery (40) when the first battery (40) is inserted in the metal box (102). The electrical contact between the between the first connector element (120) and the corresponding connection portion (not shown) electronically couples the first battery (40) with the vehicle (10).

[0053] Referring to Figure 4 and Figure 7, the metal box (102) comprises a first pivot defining member (160) and a second pivot member (162) for pivotally connecting the battery accommodating structure (100) to the frame structure (14) of the vehicle (10). In an embodiment of the invention, the first pivot defining member (160) is spaced apart from the second pivot member (162) along a length direction of the metal box (102).

[0054] Further, the first pivot defining member (160) comprises a first bracket element (164) receiving a first knuckle element (166). In an embodiment of the invention, the first bracket element (164) is intended to couple the first knuckle element (166) between the bottom portion (126) and the peripheral portion (130) of the metal box (102). Similarly, the second pivot defining member (162) comprises a second bracket element (168) receiving a second knuckle element (170). In an embodiment of the invention, the second bracket element (168) is intended to couple the second knuckle element (170) between the bottom portion (126) and the peripheral portion (130) of the metal box (102).

[0055] Although, the first battery accommodating structure (100) and the second battery accommodating structure (200) are disposed on two other sides i.e. in the first side and the second side of the vehicle (10). However, the construction of both the first battery accommodating structure (100) and the second battery accommodating structure (200) is identical. Thus, the embodiments of the present invention have been explained only with respect to the first battery accommodating structure (100) in abovementioned paragraphs.

[0056] Since, the battery accommodating structure is made in two parts i.e. a metal box and a plastic part instead of a single metal part and also the openings are provided on the metal box to reduce amount of metal used. One advantage of the present invention includes a significant reduction in weight of the battery accommodating structure without compromising the strength. The reduction in weight of the battery accommodating structure leading to an increase in vehicular performance. Since, the number of parts used, shape of the used parts and selection of material of the parts to make the battery accommodating structure is less, lesser complex and easily accessible. Other advantage of the present invention is a reduction in manufacturing time, a reduction in effort required, an increase in production capacity and a decrease in manufacturing cost to make the battery accommodating structure.

[0057] Since, the top end of the metal box is provided with the plastic part.One advantage of the present invention is that the scratching between walls of the battery accommodating structure and the battery is prevented. Since, the electrical connector is provided on the plastic part, which curtails the possibility of imprecise mounting of the electrical connector on the battery accommodating structure. A further advantage of the present invention is that a proper alignment between the battery and the battery accommodating structure is maintained, which lead to optimum battery efficiency, a lower maintenance requirement, and increased safety.Another advantage of the present invention is that the electrical connection between the battery and the vehicle can be attained only by inserting the battery in the battery accommodating structure, which reduces a time and an effort required for electronically coupling the battery with the vehicle.

[0058] Since, the strengthening portions are provided on the walls of the battery accommodating structure. One of the advantages of the present invention includes a better weight carrying capacity in comparison to existing battery accommodating structure.

[0059] Since, the guide elements are provided in the battery accommodating structure. One of the advantages of the present invention include proper guiding of the battery during the installation within the battery accommodating structure. Further, since the battery accommodating structure is pivotally coupled to the frame structure. One of the advantages of the present invention includes an ease in removal and installation of the battery from the battery accommodating structure. One of the advantages of the present invention includes a reduction in time and effort required for manufacturing the battery accommodating structure.

[0060] While specific language has been used to describe the disclosure, any limitations arising on account of the same are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.

[0061] The figures and the forgoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples.
, Claims:WE CLAIM:

1. A battery accommodating structure (100) of a vehicle (10), the battery accommodating structure (100) accommodating a battery (40) of the vehicle (10), the battery accommodating structure (100) beinga top open box structure, the battery accommodating structure (100) comprising a metal box (102) and a plastic part (112) disposed around a first top end (110) of the metal box (102).

2. The battery accommodating structure (100) as claimed in claim 1, wherein the plastic part (112) comprising a first portion (114) disposed around the first top end (110) of the metal box (102), a second portion (116) disposed at about a first opening (108) of the metal box (102), and a second opening (118) in the second portion (116); and a first connector element (120) accommodated in the second opening (118), the first connector element (120) providing an electrical connection to thebattery (40).

3. The battery accommodating structure (100) as claimed in claim 1, wherein the metal box (102) comprises a first wall (104), second wall (106) connected to the first wall (104) to define the metal box (102), and at least a first opening (108) on the second wall (106) and at least one of:
the second wall (106) comprises at least a third opening (122);
the first wall (104) comprises a third portion (124) defining a bottom portion (126) of the metal box (102) and a fourth portion (128) extending from the third portion (124) in an upward direction, the fourth portion (128) defining a peripheral portion (130) of the metal box (102); and
at least one of the first wall (104) and the second wall (106) comprises a first strengthening portion (132) and a second strengthening portion (134).

4. The battery accommodating structure (100) as claimed in claim 3, wherein:
the first strengthening portion (132) comprises a first strengthening arm (136) interconnecting the first wall (104) and the second wall (106) along a first lateral side (138) and a second strengthening arm (140) interconnecting the first wall (104) and the second wall (106) along a second lateral side (142);
the second strengthening portion (134) comprises a third strengthening arm (144) interconnecting the first wall (104) and the second wall (106) along the first lateral side (138), a fourth strengthening arm (146) interconnecting the first wall (104) and the second wall (106) along the second lateral side (142), a fifth strengthening arm (148) interconnecting the first wall (104) and the second wall (106) along a first bottom side (150), and a sixth strengthening arm (152) interconnecting the first wall (104) and the second wall (106) along a second bottom side (154);
the first strengthening arm (136) and the secondstrengthening arm (140) being disposed at a first height (H1); the third strengthening arm (144) and the fourth strengthening arm (146) being disposed at a second height (H2), the first height (H1) being different from the second height (H2).

5. The battery accommodating structure (100) as claimed in claim 1, wherein the first wall (104) being a “U” shaped wall and the second wall (106) having being an “L” shaped wall.

6. The battery accommodating structure (100) as claimed in claim 1, comprising a first guide element (156) disposed between the plastic part (112) and the metal box (102) at a first location and a second guide element (158) disposed between the plastic part (112) and the metal box (102) at a second location, the first guide element (156) and the second guide element (158) protruding inwardly into the metal box (102), the first guide element (156) and the second guide element (158) guiding thebattery (40) during insertion into the metal box (102).

7. The battery accommodating structure (100) as claimed in claim 1, wherein the connector element (120) faces towards the first wall (104) of the metal box (102) and is adapted to come in electrical contact with a corresponding connection portion formed in the battery (40)when the battery (40) is inserted in the metal box (102).

8. The battery accommodating structure (100) as claimed in claim 1, wherein the metal box (102) comprises a first pivot defining member (160) and a second pivot member (162) for pivotally connecting the top open box structure (100) to a frame structure (14) of the vehicle (10), the first pivot defining member (160) being spaced apart from the second pivot defining member (162) along a length direction of the metal box (102).

9. The battery accommodating structure (100) as claimed in claim 8, wherein the first pivot defining member (160) comprises a first bracket element (164) receiving a first knuckle element (166), the first bracket element (164) coupling the first knuckle element (166) between the bottom portion (126) and the peripheral portion (130) of themetal box (102); and the second pivot defining member (162) comprises a second bracket element (168) receiving a second knuckle element (170), the second bracket element (168) coupling the second knuckle element (170) between the bottom portion (126) and the peripheral portion (130) of the metal box (102).

10. An electric vehicle (10), comprising:
aframe structure (14), comprising a lower frame member (104) extending from a head tube (102);
a first battery accommodating structure (100) disposed on a first side of the lower frame member (104), the first battery accommodating structure (100) receiving a first battery (40) and pivotally connecting the first battery (40) to the lower frame member (104);
a second battery accommodating structure (200) disposed on a second side of the lower frame member (104), the second battery accommodating structure (200) receiving a second battery (42) and pivotally connecting the second battery (42) to the lower frame member (104);
the first battery accommodating structure (100)beinga top open box structure, and comprising:
a first metal box (102) and a first plastic part (112) disposed around a first top end (110) of the first metal box (102);
the second battery accommodating structure (200) being a top open box structure and comprising:
a second metal box (202) and a second plastic part (112) disposed around a second top end (210) of the second metal box (202).