Wire holder for lamp holder

Abstract

The utility model relates to a wire holder for a lamp holder, which comprises a wiring assembly which is assembled into a whole through automation equipment and an assembling part which is arranged on the lamp holder and used for installing the wiring assembly in a matched mode, a positioning matching part is arranged between the assembling part and the wiring assembly, and a limiting part is arranged on the assembling part. The wiring assembly is positioned and installed on the assembling part of the lamp holder through the positioning matching part, the wiring assembly is limited on the assembling part through the limiting part, and the wiring assembly is detachably installed on the lamp holder. Parts of the wiring assembly are assembled into a whole detachably installed on the lamp holder through automatic equipment, when electric appliance elements need to be overhauled and replaced in the later period, the whole wiring assembly can be detached from the lamp holder, and later maintenance is facilitated; besides, the wiring assembly is assembled on the lamp holder in a modularized mode, the produced wiring assembly can be installed on the lamp holders in different shapes, and the wiring assembly can be matched with the lamp holders in various shapes and the lamp holders in an open installation mode and a concealed installation mode, so that the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a wiring base for a lamp socket. Background Art

[0002] Components on the existing lamp socket wiring assembly are usually installed on the lamp socket separately. For example, a lamp socket disclosed in Chinese Patent No. ZL202011598626.9 includes a base, a receiving seat, a positive conductive sheet and a negative conductive sheet; the surface of the base is provided with a positive terminal seat, a negative terminal seat and a receiving and installing part, the receiving seat is arranged in the receiving and installing part, and the receiving seat and the base are detachably connected through a receiving clamping structure; a receiving cavity is arranged inside the receiving seat, a receiving structure is arranged on the side wall of the receiving cavity, a receiving port is arranged at the upper part of the receiving seat, a conductive hole is arranged at the lower part of the receiving seat, a positive electrode and a negative electrode are arranged in the receiving cavity, the positive terminal seat is provided with a positive wiring terminal, and the negative terminal seat is provided with a negative wiring terminal; the positive conductive sheet passes through the conductive hole and is respectively connected to the positive wiring terminal and the positive electrode, and the negative conductive sheet passes through the conductive hole and is respectively connected to the negative wiring terminal and the negative electrode. Its positive wiring terminal and negative wiring terminal are installed on the base as separate parts, which is not convenient for later maintenance, component replacement, etc. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a wiring base for a lamp socket, which assembles the components of the wiring assembly into an integral unit that can be detachably installed on the lamp socket through an automated device or manually. When later maintenance and replacement of electrical components are required, the entire wiring assembly can be removed from the lamp socket, which is convenient for later maintenance; in addition, the modular assembly of the wiring assembly on the lamp socket enables the installed wiring assembly to be installed on lamp sockets of different shapes after production.

[0004] The purpose of the utility model is achieved as follows:

[0005] A wiring base for a lamp socket includes a wiring assembly assembled into an integral unit through an automated device or manually, and an assembly part arranged on the lamp socket and used for cooperatively installing the wiring assembly. A positioning and mating part is arranged between the assembly part and the wiring assembly, and a limiting part is arranged on the assembly part. The wiring assembly is positioned and installed on the assembly part of the lamp socket through the positioning and mating part, the wiring assembly is limited on the assembly part through the limiting part, and the wiring assembly is detachably installed on the lamp socket. The wiring assembly is installed on lamp sockets of different specifications and models through the positioning and mating part and the limiting part.

[0006] The wiring components on the lamp socket are assembled into an integral wiring assembly through an automated device. The wiring assembly is integrally disassembled and installed on the lamp socket, and a positioning and mating part and a limiting part are arranged between the wiring assembly and the assembly part of the lamp socket, so as to realize the left - right and front - back positioning and installation of the wiring assembly on the lamp socket.

[0007] The positioning and mating part includes two first limit blocks and a second limit block that are arranged at left and right intervals on the assembly part, and a positioning and mounting block arranged on the wiring assembly. An installation gap is formed between the first limit block and the second limit block; the positioning and mounting block is positioned on the installation gap so that the wiring assembly is positioned and mounted on the assembly part of the lamp socket. The positioning and mounting block is positioned and mounted left and right between the first limit block and the second limit block, realizing the left and right positioning and mounting of the wiring assembly on the lamp socket.

[0008] A third limit block is provided on the assembly part. The first limit block and / or the second limit block are arranged opposite to the third limit block. The interval between the first limit block and / or the second limit block and the third limit block forms a limiting part for limiting and mounting the wiring assembly. Both sides of the wiring assembly are limited on the interval between the first limit block and / or the second limit block and the third limit block.

[0009] The first limit block and the second limit block are respectively arranged at front and rear intervals with the third limit block, so that the wiring assembly is positioned and mounted front and rear on the lamp socket, and prevents the installed wiring assembly from moving in the front-rear and left-right directions on the lamp socket.

[0010] A cavity covering the assembly part and the wiring assembly is provided on the lamp socket. The assembly part extends along the inner side of the cavity. A connecting part for accommodating and installing the copper coil component is provided on the lamp socket. The connecting part extends along the outer side of the lamp socket; the copper coil component and the wiring assembly are respectively installed on the lamp socket, and the copper coil component, the wiring assembly and the lamp socket are fixedly connected through fasteners. The wiring assembly and / or the copper coil component are detachably installed on the lamp socket through fasteners.

[0011] A spiral mounting part for installing the lighting lamp is provided on the copper coil component.

[0012] The wiring assembly is electrically connected to the copper coil component, and the lighting lamp is electrically connected through the copper coil component and the wiring assembly. The lamp socket is a surface-mounted lamp socket or a recessed lamp socket. The lamp socket has a circular ring shape, a square frame shape or a polygonal shape structure.

[0013] The wiring assembly includes a pressing plate, a bottom cover, and a wiring terminal module arranged between the pressing plate and the bottom cover; a fastening structure is provided between the pressing plate and the bottom cover. The pressing plate and the bottom cover are fastened through the fastening structure, and the wiring terminal module is positioned between the pressing plate and the bottom cover to assemble into a wiring assembly.

[0014] The wiring terminal module is encapsulated between the pressing plate and the bottom cover, so that the wiring terminal module is integrated between the pressing plate and the bottom cover, which is convenient for later modular assembly with the lamp socket, enabling the wiring assembly to be applicable to installation on various lamp sockets. The lamp socket can be selectively produced according to customer needs, that is, the wiring assembly can be pre-produced and stocked, and then the lamp socket of the corresponding shape can be selected for production according to the order requirements, effectively shortening the production cycle and improving the enterprise efficiency.

[0015] The wiring terminal module includes a first pull-out wiring terminal and a second pull-out wiring terminal. Plug-in ports are provided on both the first pull-out wiring terminal and the second pull-out wiring terminal, and locking members that are vertically movably arranged in the plug-in ports are provided on both the first pull-out wiring terminal and the second pull-out wiring terminal;

[0016] A negative copper sheet is provided on the plug-in port of the first pull-out wiring terminal, and a positive copper sheet is provided on the plug-in port of the second pull-out wiring terminal;

[0017] When a wire is inserted into the plug-in ports of the first pull-out wiring terminal and the second pull-out wiring terminal, the locking member drives the terminal to press the corresponding copper sheet and the wire tightly in the plug-in port 。

[0018] The pressure plate and the bottom cover are respectively provided with opening parts corresponding to the plug-in ports of the first pull-out wiring terminal and the second pull-out wiring terminal. Each plug-in port communicates with the corresponding opening part, and both ends of the plug-in port and the opening part are open ends, so that a wire can be plugged in at any end of the plug-in port and the opening part, which is convenient for electricians to wire.

[0019] The bottom cover is provided with a first limiting cavity and a second limiting cavity. The pressure plate is correspondingly provided with a first plug-in block and a second plug-in block that are inserted into the first limiting cavity. The first plug-in block and the second plug-in block are arranged at intervals oppositely on the pressure plate; the pressure plate is correspondingly provided with a third plug-in block and a fourth plug-in block that are inserted into the second limiting cavity. The third plug-in block and the fourth plug-in block are arranged at intervals oppositely on the pressure plate;

[0020] The first pull-out wiring terminal is limitedly installed in the first limiting cavity and is limited between the first plug-in block and the second plug-in block;

[0021] The second pull-out wiring terminal is limitedly installed in the second limiting cavity and is limited between the third plug-in block and the fourth plug-in block;

[0022] The pressure plate is provided with a first avoidance opening and a second avoidance opening. One end of the negative copper sheet is inserted into the plug-in port of the first pull-out wiring terminal, and the other end of the negative copper sheet extends out on the first avoidance opening; one end of the positive copper sheet is inserted into the plug-in port of the second pull-out wiring terminal, and the other end of the positive copper sheet extends out of the second avoidance opening.

[0023] The beneficial effects of the present utility model are as follows:

[0024] The components of the wiring assembly are assembled into an integral unit that is detachably installed on the lamp socket through an automated device. When it is necessary to repair and replace electrical components in the later stage, the entire wiring assembly can be removed from the lamp socket, which is convenient for later maintenance; in addition, the wiring assembly is modularly assembled on the lamp socket, and the produced wiring assembly can be installed on lamp sockets of different shapes. The wiring assembly can be adapted to various external shape lamp sockets, as well as lamp sockets suitable for surface mounting and recessed mounting, so as to reduce production costs and improve production efficiency. Description of the Drawings

[0025] Figure 1 This is a schematic cross-sectional structure diagram of a wiring component according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic exploded assembly structure diagram of a wiring component according to an embodiment of the present invention.

[0027] Figure 3 This is a schematic exploded assembly structure diagram of a wiring component from another perspective according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic structure diagram of the assembly of a lamp holder and a wiring component according to an embodiment of the present invention.

[0029] Figure 5 This is a schematic structure diagram of the assembly of a lamp holder and a wiring component from another perspective according to an embodiment of the present invention.

[0030] Figure 6 This is a schematic cross-sectional structure diagram of a lamp holder according to an embodiment of the present invention.

[0031] Figure 7 This is a schematic three-dimensional structure diagram of a lamp holder according to an embodiment of the present invention.

[0032] Figure 8 This is a schematic exploded assembly structure diagram of a lamp holder, a wiring component and a copper coil component according to an embodiment of the present invention.

[0033] Figure 9 This is a schematic three-dimensional structure diagram of a lamp holder from another perspective according to an embodiment of the present invention.

[0034] Figure 10 This is a schematic structure diagram of a lamp holder with a square shape according to another embodiment of the present invention.

[0035] Figure 11 This is a schematic diagram of another perspective of a lamp holder with a square shape according to another embodiment of the present invention. Detailed Description of the Invention

[0036] The present invention will be further described below in conjunction with the drawings and embodiments.

[0037] See Figures 1 - 11, A wiring base for a lamp holder, comprising an assembly part 3 provided on the lamp holder 1 and used for fitting and installing a wiring component 2. There is a positioning and fitting part 4 between the assembly part 3 and the wiring component 2. A limiting part 5 is provided on the assembly part 3. The wiring component 2 is positioned and installed on the assembly part 3 of the lamp holder 1 through the positioning and fitting part 4, and the wiring component 2 is limited on the assembly part 3 through the limiting part 5. Moreover, the wiring component 2 is detachably installed on the lamp holder 1. The wiring component 2 is installed on lamp holders 1 of different specifications and models through the positioning and fitting part 4 and the limiting part 5. By providing the positioning and fitting part 4 and the limiting part 5 between the wiring component 2 and the assembly part of the lamp holder 3, the entire wiring component 2 can be adapted to lamp holders 1 with various shapes and installation methods, such as surface-mounted lamp holders 1 and recessed lamp holders 1, so as to reduce production costs and improve production efficiency.

[0038] The wiring component automation equipment is assembled into an integral whole.

[0039] The positioning and fitting part 4 includes two first limiting blocks 6 and a second limiting block 7 that are arranged at left and right intervals on the assembly part 3, and a positioning and installation block 8 provided on the wiring component 2. An installation notch is formed between the first limiting block 6 and the second limiting block 7; the positioning and installation block 8 is positioned on the installation notch so that the wiring component 2 is positioned and installed on the assembly part 3 of the lamp holder 1.

[0040] A third limiting block 9 is provided on the assembly part 3. The first limiting block 6 and / or the second limiting block 7 and the third limiting block 9 are arranged oppositely. The interval between the first limiting block 6 and / or the second limiting block 7 and the third limiting block 9 forms a limiting part 5 for limiting and installing the wiring component 2, and both sides of the wiring component 2 are limited in the interval between the first limiting block 6 and / or the second limiting block 7 and the third limiting block 9.

[0041] The lamp holder 1 is a surface-mounted lamp holder or a recessed lamp holder.

[0042] The lamp holder 1 has an annular shape, a square frame shape or a polygonal shape structure.

[0043] A cavity 10 covering the assembly part 3 and the wiring component 2 is provided on the lamp holder 1. The assembly part 3 extends along the inner side of the cavity 10. A connecting part 11 for accommodating and installing a copper coil component 12 is provided on the lamp holder 1. The connecting part 11 extends along the outer side of the lamp holder 1; the copper coil component 12 and the wiring component 2 are respectively installed on the lamp holder 1, and the copper coil component 12, the wiring component 2 and the lamp holder 1 are fixedly connected through a fastener 13. The wiring component 2 and / or the copper coil component 12 are detachably installed on the lamp holder 1 through the fastener 13.

[0044] The copper coil component 12 is provided with a spiral installation part 12.1 for installing a lighting lamp.

[0045] In this embodiment, the spiral installation part 12.1 is equivalent to an internal thread structure.

[0046] The wiring component 2 is electrically connected to the copper coil component 12, and the lighting lamp is electrically connected to the wiring component 2 through the copper coil component 12.

[0047] The wiring component 2 includes a pressing plate 14, a bottom cover 15, and a wiring terminal module 16 disposed between the pressing plate 14 and the bottom cover 15; a fastening structure 17 is provided between the pressing plate 14 and the bottom cover 15, the pressing plate 14 and the bottom cover 15 are fastened through the fastening structure 17, and the wiring terminal module 16 is positioned between the pressing plate 14 and the bottom cover 15 to assemble into a wiring component 2.

[0048] In this embodiment, the fastening structure 17 includes a buckle provided on the pressing plate 14 and a fastening hole provided on the bottom cover 15.

[0049] In this embodiment, a fastening cavity for inserting the fastening member 13 is provided on the bottom cover 15.

[0050] In this embodiment, avoiding spaces are provided on the pressing plate 14 corresponding to the fastening member 13 and the fastening cavity.

[0051] The wiring terminal module 16 includes a first drawable wiring terminal 18 and a second drawable wiring terminal 19. Plugging ports 20 are provided on both the first drawable wiring terminal 18 and the second drawable wiring terminal 19, and locking members 21 that are vertically movably disposed in the plugging ports 20 are provided on both the first drawable wiring terminal 18 and the second drawable wiring terminal 19;

[0052] In this embodiment, the locking member 21 is a locking screw, and screw holes for inserting the locking member 21 are provided on the bottom cover 15.

[0053] In this embodiment, screw holes communicating with the plugging ports 20 are provided on both the first drawable wiring terminal 18 and the second drawable wiring terminal 19.

[0054] A negative copper sheet 22 is provided on the plugging port 20 of the first drawable wiring terminal 18, and a positive copper sheet 23 is provided on the plugging port 20 of the second drawable wiring terminal 19;

[0055] When wires are inserted into the plugging ports 20 of the first drawable wiring terminal 18 and the second drawable wiring terminal 19, the locking member 21 drives the terminals to press the corresponding copper sheets and the wires tightly in the plugging ports.

[0056] Openings 24 are provided on both the pressing plate 14 and the bottom cover 15 corresponding to the plugging ports 20 of the first drawable wiring terminal 18 and the second drawable wiring terminal 19. Each plugging port 20 communicates with the corresponding opening 24, and both ends of the plugging port 20 and the opening 24 are open ends to plug wires at any one end of the plugging port 20 and the opening 24.

[0057] The bottom cover 15 is provided with a first limiting cavity 25 and a second limiting cavity 26. Corresponding to the first limiting cavity 25 on the pressure plate 14, there are a first insertion block 27 and a second insertion block 28 inserted into the first limiting cavity 25. The first insertion block 27 and the second insertion block 28 are arranged at intervals opposite to each other on the pressure plate 14. Corresponding to the second limiting cavity 26 on the pressure plate 14, there are a third insertion block 29 and a fourth insertion block 30 inserted into the second limiting cavity 26. The third insertion block 29 and the fourth insertion block 30 are arranged at intervals opposite to each other on the pressure plate 14.

[0058] The first pull-out terminal 18 is limit-mounted in the first limiting cavity 25 and is limited between the first insertion block 27 and the second insertion block 28.

[0059] The second pull-out terminal 19 is limit-mounted in the second limiting cavity 26 and is limited between the third insertion block 29 and the fourth insertion block 30.

[0060] The pressure plate 14 is provided with a first avoidance opening 31 and a second avoidance opening 32. One end of the negative copper sheet 22 is inserted into the wire insertion port 20 of the first pull-out terminal 18, and the other end of the negative copper sheet 22 extends out on the first avoidance opening 31. One end of the positive copper sheet 23 is inserted into the wire insertion port 20 of the second pull-out terminal 19, and the other end of the positive copper sheet 23 extends out of the second avoidance opening 32.

[0061] The negative copper sheet 22 and the copper coil component 12 are fixedly connected by a fastener 13. The fastener 13 is inserted into the copper coil component 12, the lamp holder 1 and the negative copper sheet 22 of the wiring assembly 2. The negative copper sheet 22 is provided with a threaded hole for inserting the fastener 13. The fastener 13 is a fastening screw.

[0062] The negative copper sheet 22 contacts the copper coil component 12 by extending out of the first avoidance opening 31. A through hole is provided on the bottom wall of the connecting portion 11 of the lamp holder 1 corresponding to the fastener 13, which is convenient for the fastener 13 to penetrate and fix the lamp holder 1, the wiring assembly 2 and the copper coil component 12.

[0063] In this embodiment, the lamp holder 1, the wiring assembly 2 and the copper coil component 12 are fixedly connected by two fasteners 13. One of the fasteners 13 is inserted into the pressure plate 14, the bottom cover 15 and the negative copper sheet 22 of the wiring assembly 2. The other fastener 13 is inserted into the pressure plate 14 and the bottom cover 15 of the wiring assembly 2.

[0064] In this embodiment, the surface-mounted lamp holder 1 is provided with two screw holes, and the surface-mounted lamp holder 1 is provided with a protective cover 33 for covering the two screw holes.

[0065] The above is the preferred embodiment of the present utility model, which shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wiring base for a lamp holder, characterized in that: It includes a wiring component (2) assembled into a whole by an automated device, and an assembly part (3) provided on a lamp base (1) and used to cooperate with the installation of the wiring component (2). A positioning and mating part (4) is provided between the assembly part (3) and the wiring component (2), and a limiting part (5) is provided on the assembly part (3). The wiring component (2) is positioned and installed on the assembly part (3) of the lamp base (1) through the positioning and mating part (4), the wiring component (2) is limited on the assembly part (3) through the limiting part (5), and the entire wiring component (2) is detachably installed on the lamp base (1). The wiring component (2) is installed on lamp bases (1) of different specifications and models through the positioning and mating part (4) and the limiting part (5).

2. The terminal block for a lamp socket according to claim 1, wherein: The positioning and mating part (4) includes a first limiting block (6) and a second limiting block (7) arranged at left and right intervals on the assembly part (3), and a positioning and installation block (8) provided on the wiring component (2). An installation notch is formed between the first limiting block (6) and the second limiting block (7); the positioning and installation block (8) is positioned on the installation notch so that the wiring component (2) is positioned and installed on the assembly part (3) of the lamp base (1).

3. The terminal block for a lamp socket according to claim 2, characterized in that: A third limiting block (9) is provided on the assembly part (3). The first limiting block (6) and / or the second limiting block (7) is arranged opposite to the third limiting block (9). The interval between the first limiting block (6) and / or the second limiting block (7) and the third limiting block (9) forms a limiting part (5) for limiting and installing the wiring component (2). Both sides of the wiring component (2) are limited in the interval between the first limiting block (6) and / or the second limiting block (7) and the third limiting block (9).

4. The terminal block for a lamp socket according to claim 1, characterized in that: A cavity (10) covering the assembly part (3) and the wiring component (2) is provided on the lamp base (1). The assembly part (3) extends along the inner side of the cavity (10). A connecting part (11) for accommodating and installing a copper coil component (12) is provided on the lamp base (1). The connecting part (11) extends along the outer side of the lamp base (1); the copper coil component (12) and the wiring component (2) are respectively installed on the lamp base (1), and the copper coil component (12), the wiring component (2) and the lamp base (1) are fixedly connected through a fastener (13). The wiring component (2) and / or the copper coil component (12) is detachably installed on the lamp base (1) through the fastener (13).

5. The terminal block for a lamp holder according to claim 4, characterized in that: A spiral installation part (12.1) for installing a lighting lamp is provided on the copper coil component (12); the lamp base (1) is a surface-mounted lamp base or a recessed lamp base; the lamp base (1) has an annular or polygonal structure.

6. The terminal block for a lamp holder according to claim 5, characterized in that: The wiring component (2) is electrically connected to the copper coil component (12), and the lighting lamp is electrically connected through the copper coil component (12) and the wiring component (2).

7. The terminal block for a lamp socket according to claim 1, wherein: The wiring assembly (2) includes a pressure plate (14), a bottom cover (15), and a wiring terminal module (16) disposed between the pressure plate (14) and the bottom cover (15); a fastening structure (17) is provided between the pressure plate (14) and the bottom cover (15), and the pressure plate (14) and the bottom cover (15) are fastened through the fastening structure (17), and the wiring terminal module (16) is positioned between the pressure plate (14) and the bottom cover (15) to assemble into a wiring assembly (2).

8. The terminal block for a lamp socket according to claim 7, characterized in that: The wiring terminal module (16) includes a first pull-out wiring terminal (18) and a second pull-out wiring terminal (19). Plug-in ports (20) are provided on both the first pull-out wiring terminal (18) and the second pull-out wiring terminal (19), and locking members (21) that are vertically movably disposed in the plug-in ports (20) are provided on both the first pull-out wiring terminal (18) and the second pull-out wiring terminal (19); A negative copper sheet (22) is provided on the plug-in port (20) of the first pull-out wiring terminal (18), and a positive copper sheet (23) is provided on the plug-in port (20) of the second pull-out wiring terminal (19); When wires are inserted into the plug-in ports (20) of the first pull-out wiring terminal (18) and the second pull-out wiring terminal (19), the locking members (21) drive the terminals to press the corresponding copper sheets and wires tightly in the plug-in ports.

9. The wiring base for a lamp socket according to claim 8, characterized in that: Both the pressure plate (14) and the bottom cover (15) are provided with opening parts (24) corresponding to the plug-in ports (20) of the first pull-out wiring terminal (18) and the second pull-out wiring terminal (19). Each plug-in port (20) communicates with the corresponding opening part (24), and both ends of the plug-in port (20) and the opening part (24) are open ends to insert wires at any one end of the plug-in port (20) and the opening part (24).

10. The terminal block for a lamp socket according to claim 8, characterized in that: The bottom cover (15) is provided with a first limiting cavity (25) and a second limiting cavity (26). Corresponding to the first limiting cavity (25) on the pressure plate (14), a first plug-in block (27) and a second plug-in block (28) that are inserted into the first limiting cavity (25) are provided. The first plug-in block (27) and the second plug-in block (28) are arranged at intervals in opposite directions on the pressure plate (14); corresponding to the second limiting cavity (26) on the pressure plate (14), a third plug-in block (29) and a fourth plug-in block (30) that are inserted into the second limiting cavity (26) are provided. The third plug-in block (29) and the fourth plug-in block (30) are arranged at intervals in opposite directions on the pressure plate (14); The first pull-out wiring terminal (18) is limited and installed in the first limiting cavity (25) and is limited between the first plug-in block (27) and the second plug-in block (28); The second pull-out wiring terminal (19) is limited and installed in the second limiting cavity (26) and is limited between the third plug-in block (29) and the fourth plug-in block (30); The pressure plate (14) is provided with a first avoidance opening (31) and a second avoidance opening (32). One end of the negative copper sheet (22) is inserted into the plug-in port (20) of the first pull-out wiring terminal (18), and the other end of the negative copper sheet (22) extends out of the first avoidance opening (31); one end of the positive copper sheet (23) is inserted into the plug-in port (20) of the second pull-out wiring terminal (19), and the other end of the positive copper sheet (23) extends out of the second avoidance opening (32).

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