Technology field
[One]
The present invention relates to a terminal cover and a battery pack comprising the same.
[2]
This application is a priority claim application for Korean Patent Application No. 10-2018-0007044 filed on January 19, 2018, and all contents disclosed in the specification and drawings of the application are incorporated in this application by reference.
Background
[3]
A secondary battery having high applicability according to the product group and having electrical characteristics such as high energy density, etc. is not only portable equipment, but also electric vehicles (EV, Electric Vehicle) or hybrid vehicles (HEV, Hybrid Electric Vehicle) driven by electric driving sources. It is used universally. This secondary battery is attracting attention as a new energy source for eco-friendliness and energy efficiency enhancement, in that not only does not generate any by-products due to the use of energy, as well as the primary advantage of dramatically reducing the use of fossil fuels.
[4]
Currently widely used secondary batteries include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, and nickel zinc batteries. The operating voltage of the unit secondary battery cell, that is, the unit battery cell is about 2.5V to 4.6V. Therefore, when a higher output voltage is required, a battery pack may be configured by connecting a plurality of battery cells in series. In addition, a battery pack may be configured by connecting a plurality of battery cells in parallel according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output voltage or charge/discharge capacity.
[5]
Meanwhile, when a battery pack is configured by connecting a plurality of battery cells in series/parallel, a battery module composed of at least one battery cell is configured first, and other components are added using the at least one battery module to add a battery pack. How to configure it is common. Here, the battery cells constituting the battery module or the battery pack are generally provided as a pouch type secondary battery having the advantage of being easily stacked.
[6]
A conventional battery pack is connected to at least one battery module including at least one battery cell, at least one battery module, and at least one terminal for connection to an external power source, etc., and at least one terminal exposed to the outside. It comprises a pack case for packaging the battery module. Here, the conventional battery pack, in general, is configured to further include a terminal cover detachably coupled to the pack case for protection of the terminal exposed to the outside when moving according to the transport of the battery pack. Such a conventional terminal cover generally has a structure that is removed from the pack case according to a rotational operation according to a user operation.
[7]
However, in the case of the conventional terminal cover, there is a problem in that wear occurs easily according to rotation according to user manipulation, so that the fastening force with the pack case is weakened and damage to the pack case occurs.
[8]
In addition, in the case of the conventional terminal cover, there is a problem that the user may have difficulty in rotating the terminal cover with the user's bare hands without wearing coated gloves or the like. That is, in the conventional terminal cover, there is a problem in that manipulation for removal is difficult depending on the state of the user's hand.
[9]
Therefore, it is desired to find a way to prevent damage to the pack case due to desorption, and to provide a terminal cover having easier detachability and a battery pack including the same.
Detailed description of the invention
Technical challenges
[10]
Accordingly, an object of the present invention is to provide a terminal cover capable of preventing damage to the pack case due to removal and a battery pack including the same.
[11]
In addition, another object of the present invention is to provide a terminal cover having easier detachability and a battery pack including the same.
Task resolution
[12]
In order to solve the above object, the present invention, the terminal cover to cover the terminal of the battery pack, detachably mounted to the battery pack, the cover body hook-coupled to the pack case of the battery pack; It is provided on both sides of the cover body, and the removal guide portion for releasing the hook engagement of the cover body according to the user pressure; provides a terminal cover comprising a.
[13]
A hook coupled to the pack case and a hook is provided on one side of the bottom of the cover body, and the removal guide part is spaced apart from the hook by a predetermined distance and elastically deformed according to the user pressure to separate the hook from the pack case. Can.
[14]
The removal guide portion may be integrally formed with the cover body.
[15]
The removal guide part may be disposed at a predetermined distance from the pack case to secure a predetermined space for the elastic deformation.
[16]
The cover body may be provided with an elastically deformable soft material.
[17]
The terminal cover may be provided on an inner surface of the cover body, and may further include an elastic spacer disposed between the inner surface of the cover body and the outer surface of the terminal when the terminal cover is mounted.
[18]
And, the present invention, as a battery pack, at least one terminal cover according to the above-described embodiments; At least one terminal covered by the terminal cover; A battery module electrically connected to the at least one terminal; It provides a battery pack comprising a; and a pack case for packaging the battery module.
[19]
The pack case may be provided with a hook engaging portion that is hooked with the cover body.
Effects of the Invention
[20]
According to various embodiments as described above, a terminal cover capable of preventing damage to the pack case due to detachment and a battery pack including the same can be provided.
[21]
In addition, according to various embodiments of the present invention, it is possible to provide a terminal cover having easier detachability and a battery pack including the same.
Brief description of drawings
[22]
The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and the present invention serves to further understand the technical idea of ​​the present invention together with the detailed description of the invention described below. It is not limited to interpretation.
[23]
1 is a view for explaining a battery pack according to an embodiment of the present invention.
[24]
2 is a cross-sectional view of a main part of the battery pack of FIG. 1.
[25]
3 and 4 are views for explaining the removal operation of the terminal cover of the battery pack of FIG. 1.
[26]
5 is a view for explaining a terminal cover according to another embodiment of the battery pack of FIG. 1.
Mode for carrying out the invention
[27]
The present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the embodiments described herein are illustratively shown to help understanding of the present invention, and that the present invention can be implemented in various ways different from the embodiments described herein. In addition, in order to help the understanding of the invention, the accompanying drawings are not drawn to scale, but the dimensions of some components may be exaggerated.
[28]
1 is a view for explaining a battery pack according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the main part of the battery pack of Figure 1;
[29]
1 and 2, the battery pack 10 may include a battery module 100, a pack case 200, a terminal 300, and a terminal cover 500.
[30]
The battery module 100 may include at least one or more battery cells. The at least one or more battery cells may be provided as a secondary battery, for example, a pouch type secondary battery.
[31]
The battery module 100 may be provided in at least one, or a plurality of more. The number of the battery modules 100 may be determined according to the required battery capacity.
[32]
The pack case 200 may package the battery module 100 and form an external appearance of the battery pack 10. The pack case 200 may be provided with an accommodation space for accommodating the battery module 100.
[33]
The hook case 205 may be provided in the pack case 200.
[34]
The hook coupling portion 205 is for coupling with the terminal cover 500 to be described later, by fixing the hook 515 of the terminal cover 500 to be described later to the terminal cover 500 to be described later the pack case 200 Can be fixed to.
[35]
The terminal 300 is for connecting the battery module 100 and an external power source, and is electrically connected to the battery module 100 and may be exposed outside the pack case 200.
[36]
A plurality of the terminals 300 may be provided, and the plurality of terminals 300 may protrude out of the pack case 200 to be partially exposed outside the outer surface of the pack case 200.
[37]
The terminal cover 500 is for protecting the terminal 300 and may cover the terminal 300 exposed outside the pack case 200. The terminal cover 500 is mounted on the pack case 200 and detachably mounted on the pack case 200 for connection between the terminal 300 and the external power supply.
[38]
The terminal cover 500 may include a cover body 510 and a removal guide part 530.
[39]
The cover body 510 may cover the terminal 300 when the pack case 200 of the terminal cover 500 is mounted. The cover body 510 may be formed of an elastically deformable soft material.
[40]
The cover body 510 may be detachably hooked to the pack case 200.
[41]
To this end, a hook 515 may be provided on the cover body 510.
[42]
The hook 515 is provided on one side of the bottom of the cover body 510, and may be hookably detachable from the pack case 200. Specifically, the hook 515 may be detachably hooked to the hook coupling portion 205 of the pack case 200.
[43]
The removal guide part 530 is provided on both sides of the cover body 510 and may be integrally formed with the cover body 510. In addition, the removal guide part 530 may be provided with the same material as the cover body 510. Accordingly, the removal guide portion 530 may be provided with an elastically deformable soft material such as the cover body 510.
[44]
The removal guide portion 530 may release the hook coupling of the cover body 510 according to user pressure. Specifically, the removal guide portion 530 is spaced a predetermined distance from the hook 515, and is elastically deformed according to the user pressure to release the hook 515 by separating the hook 515 from the pack case 200. I can do it.
[45]
The removal guide part 530 may be disposed at a predetermined distance from the pack case 200 so as to more easily perform the elastic deformation. Accordingly, a predetermined space S may be provided between the removal guide part 530 and the pack case 200.
[46]
Hereinafter, the removal operation of the terminal cover 500 according to this embodiment will be described in more detail.
[47]
3 and 4 are views for explaining the removal operation of the terminal cover of the battery pack of FIG. 1.
[48]
Referring to FIGS. 3 and 4, when moving, such as transportation of the battery pack 10, the battery pack 10 has the terminal cover 500 to protect the terminal 300 so that the pack case ( 200) can be mounted through a hook.
[49]
Thereafter, when movement such as transportation of the battery pack 10 is completed, for the connection between the terminal 300 and the external power supply, it is necessary to remove the terminal cover 500 from the pack case 200. Can.
[50]
When the terminal cover 500 is removed, the user, such as an operator, may press both sides of the removal guide portion 530 disposed on both sides of the cover body 510 of the terminal cover 500, respectively. According to the user pressure, when the removal guide portion 530 disposed on both sides of the cover body 510 is elastically deformed in the vicinity of the predetermined space S, both sides of the cover body 510 are also up and down. It can be elastically deformed in the direction.
[51]
According to the elastic deformation in the vertical direction of the cover body 510, the hook 515 of the cover body 510 comes out of the hook coupling portion 205 of the pack case 200, and thus the terminal cover Hook coupling of the 500 and the pack case 200 may be released.
[52]
As such, in the present embodiment, the removal of the terminal cover 500 may be performed through the user's removal guide portion 530 grip rather than the conventional rotating structure. Accordingly, in the present embodiment, since the elastic force according to the user's pressure is used instead of the friction force in the conventional rotating structure, wear or damage of the pack case 200 due to friction can be prevented.
[53]
In addition, in this embodiment, since the terminal cover 500 is removed from the pack case 200 through elastic deformation according to the user's pressure, the user's bare hand without wearing a separate coated glove such as the prior art Also, the terminal cover 500 can be easily detached.
[54]
5 is a view for explaining a terminal cover according to another embodiment of the battery pack of FIG. 1.
[55]
Since the terminal cover 600 according to the present embodiment is similar to the terminal cover 500 according to the previous embodiment, the following description will focus on differences from the previous embodiment.
[56]
Referring to FIG. 5, the terminal cover 600 may include a cover body 610, a removal guide part 630, and an elastic spacer 650.
[57]
Since the cover body 610 and the removal guide portion 630 are substantially the same or similar to the cover body 510 and the removal guide portion 530 of the previous embodiment, a duplicate description will be omitted below.
[58]
The elastic spacer 650 is provided on the inner surface of the cover body 610, and when the pack case 200 of the terminal cover 600 is mounted, the inner surface of the cover body 610 and the terminal 300 It can be disposed between the outer surfaces.
[59]
The elastic spacer 650 may be made of a rubber material having elasticity. For example, the elastic spacer 650 may be provided with the silicone rubber, styrene butadiene rubber, or the like.
[60]
The elastic space 650 according to the present embodiment is in close contact with the outer surface of the terminal 300 within the cover body 610, so when the pack case 200 of the terminal cover 600 is mounted, the terminal cover The unexpected stability of the 600 may be more reliably prevented, thereby increasing the bonding stability of the terminal cover 600.
[61]
According to various embodiments as described above, it is possible to provide a terminal cover 500, 600 and a battery pack 10 including the same, which can prevent damage to the pack case 200 due to detachment.
[62]
In addition, according to various embodiments of the present invention, it is possible to provide a terminal cover 500, 600 having easier detachability and a battery pack 10 including the same.
[63]
In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is usually used in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications can be implemented by a person having knowledge of these, and these modifications should not be individually understood from the technical idea or prospect of the present invention.
Claim
[Claim 1]
A terminal cover that covers a terminal of a battery pack and is detachably mounted to the battery pack, the terminal cover comprising: a cover body hook-coupled to a pack case of the battery pack; And It is provided on both sides of the cover body, the terminal cover characterized in that it comprises; a removal guide portion for releasing the hook engagement of the cover body according to the user pressure.
[Claim 2]
According to claim 1, On the bottom side of the cover body, a hook coupled to the pack case is provided with a hook, and the removal guide part is spaced apart from the hook by a predetermined distance, and elastically deformed according to the user's pressure. Terminal cover, characterized in that spaced from the pack case.
[Claim 3]
The terminal cover according to claim 2, wherein the removal guide part is integrally formed with the cover body.
[Claim 4]
The terminal cover of claim 2, wherein the removal guide part is disposed at a predetermined distance from the pack case in order to secure a predetermined space for the elastic deformation.
[Claim 5]
The terminal cover according to claim 1, wherein the cover body is made of an elastically deformable soft material.
[Claim 6]
The terminal cover according to claim 1, further comprising an elastic spacer provided on the inner surface of the cover body and disposed between the inner surface of the cover body and the outer surface of the terminal when the terminal cover is mounted.
[Claim 7]
At least one terminal cover according to claim 1; At least one terminal covered by the terminal cover; A battery module electrically connected to the at least one terminal; And a pack case for packaging the battery module.
[Claim 8]
The battery pack according to claim 7, wherein the pack case is provided with a hook engaging portion that is hooked with the cover body.