Claims:We Claim:

1. An extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock comprises,
at least one conjugation means on the lateral side of the clip (1) to conjugate in click-fit manner with at least one adjacent clip (1),
at least one wire cavity (3) at parallel to lateral side of clip (1), preferably cubical shape, to accommodate electric conductive connection tube (9) to complete circuit in the system by corresponding wires from opposite side,
at least one screw receiving tunnel (2) at the top, preferably cylindrical shape, to accommodate screw (8) in the block,
at least one anti deflecting groove (13) at the base of screw head to restrict vibration of the screw (8),
at least one protruded neck (14) at the upper part of inner portion of the screw receiving tunnel (2),
one conductive retaining tube groove (4) at in close proximity with electric conducting tube (9) and upper part of wire cavity (3).
wherein, the conjugation means includes at least one tenon sleeve (5) and/or mortise collar (6) in interlock position to extend block to “N” of units.

2. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1 optionally comprises
a junctional electrical terminal clip (11), a head electrical terminal clip (10) and a tail electrical terminal clip (12),
wherein
a junctional electrical terminal clip (11) consisting terminal block with dual arrangement of tenon sleeve (5) and mortise collar (6) on opposite lateral side of clip (1),
a head electrical terminal clip (10) consisting terminal block with C type mortise collar (6) and do not contains tenon sleeve (5) and accompanied pillar;
a tail electrical terminal clip (12) comprises terminal block with tenon sleeve (5) and accompanied pillar and do not contains C type mortise collar (6).

3. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein terminal block (1) is preferably made of engineering plastic material like Nylon, Acrylonitrile butadiene styrene (ABS), Polyamides (PA), Polybutylene terephthalate (PBT), Polycarbonates (PC) etc.

4. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein conductive connection tube (9) preferably made of brass alloy material.

5. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein tenon sleeve (5) and C type mortise collar (6) of electrical terminal clip (10, 11 and 12) provide linear system extended upto “N” number of units based on the ultimate requirement of connections in the system.

6. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein electrical terminal pins (1) has been provided with different color coding.

7. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein the tenon sleeve is disposed with extended pillar embedded with fastening hole (7).

8. The extendable electrical terminal assembly with click fit arrangement through tenon sleeve and mortise collar interlock as claimed in claim 1, wherein the interlock arrangement can be T joint, Cross joint, V Joint, Round joint, Square joint and Groove joint.

Dated this February 08, 2021.
, Description:FORM 2
THE PATENT ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)

1. TITLE OF THE INVENTION: AN EXTENDABLE ELECTRICAL TERMINAL ASSEMBLY WITH CLICK-FIT ARRANGEMENT THROUGH TENON SLEEVE AND MORTISE COLLAR INTERLOCK

2. APPLICANT:
(a) NAME : Renown Engineering
(B) NATIONALITY : Indian
(C) ADDRESS : 421-422, GIDC. Ind. Estate,
Odhav, Ahmedabad – 382415
Gujarat, India

3. PREAMBLE TO THE DESCRIPTION
þ COMPLETE

The following specification particularly describes the invention and the manner in which it is to be performed.

Field of Invention:

The present invention relates to an electrical terminal block with click-fit arrangement for extension as per ultimate requirement, or in other words an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Background of Invention:

The wire connector is for connecting and fixing electrical conductors So as to conduct the electrical current in the circuit. It is often experiences that the electrical appliances or electronic devices fail to work normally due to improper connection or installation of the conductors. In order to prevent the possible hazard arising there from such as an overload or even a short circuit, a prompt response must be taken to clear above-mentioned improper connection or installation of the conductors, which usually calls for extra cost, time, and manpower.

The electrical system used everywhere like in premises, house, office, streets, malls, public place etc. electrical wiring are needed everywhere for use of electrical system. For electric wiring system numbers of wires are used in number of different colour and it is required to number of joints and connections to provide electricity at the utilization place.

In our electrical system the electrical power houses or any other non-conventional sources like solar power or wind power houses provide a power connection wire at consumer utilization place. After that in consumer place it distributed in several parts to optimize use of power. Due to that many joint and connection are required in all wiring system and distribution box. There are many types of wires are use like phase, neutral and earthing in single phase electrical system. In the three phase electrical system there are three phase is available, which describes in colour like Red(R), Yellow (Y), Blue (B) and other wires like neutral and earthing. All this type of wires are needed to joint to any other wires in wiring system in any premises.

In conventionally, the two wires or more than two wires are connected in different ways in which the one of such way is to twist those wire to each other using hand or pliers and after that the insulating tape is wound on the electrical conductive part to prevention from electric shock.

In the above method, there are many limitations in which when the wires are twisted by the hand it is possibility of injuries due to sharp pointed wires. Further this type of connection may be disconnected due to the vibration and also the wiring are not well structure installation so that the appearance is bad and it creates confusion in the wiring wires for human while supervision the wiring. Moreover it is not well structure installation so that the consumption of space is more.

In the present there are terminal block available in the market, in which one 10-15 terminal block string is available for the connection of the wires. In this type of terminal block the two cavities are there and in these cavities the wires are connected. This type of terminal block required to break/cut the terminal block as per requirement.

The limitation of the above state of art is that it is difficult to break/cut the terminal block and it is not extendable. So if once break/cut the terminal block it is difficult to connect to the other terminal block. Further, this type of terminal block string is available in only one colour. So it is difficult to identify wires and wiring system. Moreover, this type of terminal block is not sustaining vibration for long time due to that the wiring terminals become open and disconnects the circuit. Therefore, this type of terminal block is not reliable.

CN10446651 (A) relates to a wiring terminal with multiple segments capable of being in lap joint. The wring terminal comprises an insulation shell, a plurality of parallel groove openings are symmetrically formed in the two sides of the insulation shell, the insulation shell is divided by the parallel groove openings into a plurality of connecting segments, a mounting through groove is formed in each connecting segment, connecting tubular columns are arranged at the positions, close to the groove openings in the two ends of the mounting through grooves, of the upper surfaces of the connecting segments, dustproof cover sheets are arranged at the groove openings in the two ends of the mounting through grooves, metal connecting inner cores are arranged in the mounting through grooves, a connecting portion is arranged at the end of one side of the insulation shell, and an inserting tenon is arranged at the end of the other side of the insulation shell.

The limitation of above state of the art that is only describes the wiring terminal connection and also the string of the terminal block is connected to the other string. It does not describes the each one segment with click Fit connection, so that user can easily extend the terminal block as per requirement.

Hence, it is desperately needed to invent an extendable electrical terminal box that overcomes the difficulties as described above.

Object of Invention:

The main object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which suitably and selectively connects electrical wire to wire connection without any tape or joints.

Another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which extendable to “N” no. of ways terminal block.

Another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which is easy for fitting.

Further object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which is separable at each terminal block junction.

Yet another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which provides screw cavity with collar body which ultimately lead to block pull back reverse movement of screw from the terminal block.

Yet another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which provides colour coding to identify the wires and wiring connection.

Yet another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which provides protection against shock using 360° insulation.

Yet another object of the present invention is to provide an extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock which is not disassembled due to vibration during the operation.

Summary of Invention:

The present invention relates to an extendable electrical terminal block with click-fit arrangement through tenon sleeve and mortise collar interlock. The specific arrangement provides selective and suitable linear expansion in the connection electric system. The invention specifically provides versatile pin with junction means to suitable extend the system. The click fit arrangement resembles to the push-in mechanism known to the person skilled in the art. The arrangement provides rigid and firm arrangement of the each clip with adjacent clip that gives basic arrangement for linear expansion of the connector system. The invention discloses mainly three types of clip, head clip, junction clip and tail clip, that gives “N” number connector extension in the system. The base of cylindrical hollow portion of screw barrel receiving part specifically have groove extended as locking mechanism that restrict reverse momentum of screw from the terminal. The present invention specifically passes the tumble test.

Brief Description of Drawings:

Other objects, advantages and novel features of the invention will become apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.

Figure 1 shows a perspective front view of an extendable electrical terminal block with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 2 shows a rear view of an extendable electrical terminal block with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 3 shows the top view, side views and bottom views of junctional electrical terminal clip of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 4 shows the top view, side views and bottom views of head electrical terminal clip of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 5 shows top view, side views and bottom views of tail electrical terminal clip of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 6 shows top view of the conjugated terminal blocks assembly of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 7 shows cross-section view of the terminal blocks assembly of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 8 shows colored perspective view of the conjugated terminal blocks assembly of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Figure 9A-9F shows different types of interlock of extendable electrical terminal assembly with click-fit arrangement through tenon sleeve and mortise collar interlock.

Detailed Description of Invention:

Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of the construction and arrangement of parts illustrated in the accompany drawings. The invention is capable of other embodiment, as depicted in different figures as described above and of being practiced or carried out in a variety of ways. It is to be understood that the phraseology and terminology employed herein is for the purpose of description and not of limitation.

Fig. 1 provides perspective front view of the electrical terminal clip (1) with tenon sleeve according to the present invention. The electric terminal clip (1), preferably made up of engineering plastic materials like Nylon, Acrylonitrile butadiene styrene (ABS), Polyamides (PA), Polybutylene terephthalate (PBT), Polycarbonates (PC) etc. on the electrical conductive tube (9) [Not shown in fig. 1]. This electrical terminal clip (1) comprises screw receiving tunnel (2) on the top, fastening hole (7), tenon sleeve (5), wire cavity (3). The electrical terminal clip (1) on the top generally consist of at least two cylindrical screw receiving tunnel (2) extended to the base of wire cavity (3). The screw receiving tunnel (2) accommodates screw (8) [Not shown in Fig. 1] in the electrical terminal clip (1), from top portion, to complete circuit when wires are inserted in the clip (1) from both sides of the wire cavity (3). The tenon sleeve is disposed with extended pillar embedded with fastening hole (7).

Fig. 2 describes rear view of the electrical terminal clip (1) according to the present invention, wherein at top position contains screw receiving tunnel (2) has attached perpendicularly with wire cavity (3). The distal side of the electrical terminal clip (1) has C type mortise collar (6) to receive tenon sleeve (5) of adjacent clip in the system. It is pertinent to note that internal arrangement of clip (1) remains same as defined in the Fig. 1.

Fig.3 describes top view, side views and bottom views of the preferred junctional electrical terminal clip (11) with dual arrangement of tenon sleeve (5) and C type mortise collar (6) according to the invention. Part (I) describes top view of the electrical junctional terminal clip (11) with the screw (8) fastened through screw receiving tunnel (2). Top view clearly demonstrate dual connecting means i.e. C type mortise collar (6) at one end and tenon sleeve (5) at opposite end. In preferred embodiment the said electrical clip (11) is arranged in middle position of the linear arrangement of clips [Shown in Fig. 7]. Part (II) describes sectional side view of junctional electrical terminal clip (11) having established screw (8). The sectional view clearly provides close proximity arrangement of outer engineering plastic housing with conducting metal tube (9). Part (III) discloses side view of the junctional electrical terminal clip (11) with rear end view with C type mortise collar (6) to receive tenon sleeve (5) [shown in Fig. 7]. Part (IV) discloses side view of the junctional electrical terminal clip (11) without screw (8) to clearly describe conductive tube retaining groove (4) inside hollow cubical cavity (3). The conductive tube retaining groove (4) that held in close proximity with electric conducting tube (9) and upper part of wire cavity (3). Part (VI) discloses bottom view of junctional electrical terminal clip (11), where wire cavity (3) is accompanied by C type mortise collar (6) at one end and tenon sleeve (5) at opposite end. The tenon sleeve (5) has radial extended pillar with fastening hole (7) extended till the full length of pillar.

Fig. 4 discloses top view, side views and bottom views of the preferred head electrical terminal clip (10) that need to be put at forward foremost position in the conjugation network system. The head electrical terminal clip (10) comprises wire cavity (3), screw receiving tunnel (2) and C type mortise collar (6). The only difference in the present head electrical terminal clip (10) from junctional electrical terminal clip (1) is that it do not contains tenon sleeve (5) and accompanied pillar. The said arrangement is clearly described in Fig. 4 [I, II, III, IV, V and VI] where flat surface opposite to C type mortise collar (6) has characterizing feature in the head electrical terminal clip (10).

Fig. 5 discloses top view, side views and bottom views of the preferred tail electrical terminal clip (12) that need to be put at backward last position in the conjugation network system [Shown in Fig. 7]. The tail electrical terminal clip (12) comprises wire cavity (3), screw receiving tunnel (2) and tenon sleeve (5) and accompanied pillar. The only difference in the present tail electrical terminal clip (12) from junctional electrical terminal clip (1) is that it do not contains C type mortise collar (6). The said arrangement is clearly described in Fig. 5 [I, II, III, IV, V and VI] where flat surface opposite to tenon sleeve (5) and accompanied pillar has characterizing feature in the head electrical terminal clip (10).

Fig. 6 discloses top view of electric clip (10, 11 and 12) assembled in conjugation through push-in interlock arrangement of tenon sleeve (5) with corresponding C type mortise collar (6). The linear system can be extended upto “N” number of units based on the ultimate requirement of connections in the system. The crux of invention lies within simple interlock arrangement of electrical terminal clip (10, 11 and 12) with finite push in arrangement between pins.

Fig. 7 discloses a cross sectional view of the terminal clip configured with screw receiving tunnel which is formed with the protruded neck (14) in such manner that after importing the screw (8) in to the tunnel (2) the screw does not remove in any condition. Further, the anti-deflecting groove (13) is provided at the base of screw head which provide the restriction of vibration to the screw (8), so that screw (8) does not remove/loose by vibration.

Fig. 8 discloses perspective view of the conjugated electrical terminal pins in slanted position. It is pertinent to note that present system can be transport to the customers in separate mode or assembled manner. Further present invention holds the screw (8) inside the clip with specific anti-deflecting grooves (13) that minimize screw reversal movement and protruded neck (14) that prevent to remove the screw (8) from the screw receiving tunnel (2). The electrical terminal clip (1) has been provided with different color coding that gives easy identification of corresponding wire fastening in the system. Further the electrical terminal clip (1) molded with the different coding that gives easy identification of corresponding wire fastening in the system.

Fig. 9A-9F shows the different type of interlock arrangement in the present invention. The interlock of present invention can be T joint, Cross joint, V Joint, Round joint, Square joint and Groove joint. The selection of shape of conjugation means in present invention depends on several factors i.e. requirement of tensile strength and economic significance.
The present invention is tested in the tumbling barrel according to the IEC 60068-2-32. The tumbling test is for testing of terminal block for breaks, cracks or deformation which would prevent it from continuing to maintain live parts in place. Further it check screw in terminal block/clip after assembly, whether it is automatically re-opened/loosing/removal of screw during vibration/impact or not. In the tumbling test, the tumble barrel is used. The 10 no. of terminal block is placed in to the said barrel. This barrel is turned for a total in 50 falls.

After conducting this test on the ordinary terminal block and extendable terminal block, the result is as follows:
Test attempts. Before testing Conventional / existing Terminal block after testing Click-Fit Extendable Terminal block after testing
1 Pass Fail Pass
2 Pass Pass Pass
3 Pass Pass Pass
4 Pass Pass Pass
5 Pass Pass Pass
6 Pass Fail Pass
7 Pass Pass Pass
8 Pass Fail Pass
9 Pass Pass Pass
10 Pass Pass Pass
11 Pass Pass Pass
12 Pass Pass Pass
13 Pass Pass Pass
14 Pass Fail Pass
15 Pass Pass Pass
16 Pass Pass Pass
17 Pass Pass Pass
18 Pass Pass Pass
19 Pass Fail Pass
20 Pass Pass Pass
21 Pass Pass Pass
22 Pass Pass Pass
23 Pass Pass Pass
24 Pass Pass Pass
25 Pass Pass Pass

Conclusion: After the test, the present invention shows no damage within the meaning of this standard. In particular, the terminal block not show any breaks, cracks or deformation and screw loosing and removal due to vibration or impact.

The present invention specifically provides following advantage:
• Simple and versatile extendable electrical connector
• Economical solution to complex electric connection systems
• Easy to use
• Identifiable color coding for each clip to reduce cumbersome
• Assembly with less susceptibility towards vibration movement during operation

The invention has been explained in relation to specific embodiment. It is inferred that the foregoing description is only illustrative of the present invention and it is not intended that the invention be limited or restrictive thereto. Many other specific embodiments of the present invention will be apparent to one skilled in the art from the foregoing disclosure. All substitution, alterations and modification of the present invention which come within the scope of the following claims are to which the present invention is readily susceptible without departing from the spirit of the invention. The scope of the invention should therefore be determined not with reference to the above description but should be determined with reference to appended claims along with full scope of equivalents to which such claims are entitled.

Reference numerals List
1. Electric terminal block/clip
2. Screw receiving tunnel
3. Wire cavity
4. Conductive tube retaining groove
5. Tenon sleeve
6. C type mortise collar
7. Fastening hole
8. Screw
9. Conducting connection tube
10. Head electrical terminal clip
11. Junctional electrical terminal clip
12. Tail electrical terminal clip
13. Anti-deflecting groove
14. Protruded neck