CN213520414U

CN213520414U - Copper bar connector

Info

Publication number: CN213520414U
Application number: CN202022811859.4U
Authority: CN
Inventors: 李俊
Original assignee: Amphenol Commercial Products Chengdu Co Ltd
Current assignee: Amphenol Commercial Products Chengdu Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-06-22
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a copper bar connector relates to power connector technical field, and it includes insulating base and copper bar terminal subassembly and is fixed in end cover and side stopper on the insulating base with the copper bar terminal subassembly. Two rows of comb tooth grooves for the copper bar terminal assembly to be inserted from the rear end are symmetrically arranged on the top plate and the bottom plate of the insulating base, the rear ends of the two rows of comb tooth grooves are provided with tail openings for the side plates of the end cover to be inserted, a first wedge-shaped part is arranged on the partition plate between the two rows of comb tooth grooves, and a second wedge-shaped part which slides in and is clamped along the first wedge-shaped part is arranged on the end cover. The clamping groove for embedding the side plug is arranged on the same side of the terminal assembly and the insulating base, and the side plug is provided with a third wedge-shaped part which slides into the insulating base and is clamped. The problem of among the prior art copper bar connector's size great and occupy PCB board space many is solved.

Description

Copper bar connector

Technical Field

The utility model relates to a power connector technical field especially relates to a copper bar connector.

Background

The new energy electric automobile energy power part mainly comprises a battery pack, an electric control and a motor, wherein the motor and the electric control are connected in a wall penetrating mode through a large-current connector. At present, a copper bar connector is generally adopted as a large-current connector. The traditional copper bar connector has larger size and occupies more space of a PCB

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a copper bar connector has solved the copper bar connector among the prior art's the size great and occupy the many problems in PCB board space.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

a copper bar connector is provided, which comprises an insulation base, a copper bar terminal assembly, an end cover and a side plug, wherein the end cover and the side plug are used for fixing the copper bar terminal assembly on the insulation base. Two rows of comb tooth grooves for the copper bar terminal assembly to be inserted from the rear end are symmetrically arranged on the top plate and the bottom plate of the insulating base, the rear ends of the two rows of comb tooth grooves are provided with tail openings for the side plates of the end cover to be inserted, a first wedge-shaped part is arranged on the partition plate between the two rows of comb tooth grooves, and a second wedge-shaped part which slides in and is clamped along the first wedge-shaped part is arranged on the end cover. The clamping groove for embedding the side plug is arranged on the same side of the terminal assembly and the insulating base, and the side plug is provided with a third wedge-shaped part which slides into the insulating base and is clamped.

The utility model has the advantages that: the copper bar terminal assembly is inserted into the comb tooth groove from the rear end, the comb tooth groove can provide certain deformation and resilience space for the copper bar terminal during plugging and unplugging, and the stability of plugging is improved; the copper bar terminal assembly is inserted and is fixed through the cooperation of the second wedge portion on the end cover and the first wedge portion on the insulating base behind the comb tooth's socket and prevent the back-off, then relies on third wedge portion and insulating base joint, side stopper embedding draw-in groove to fix copper bar terminal assembly, end cover and insulating base as an organic whole. Thereby make the structure of this connector compacter, compare the copper bar connector of the same current-carrying ability among the prior art, the structure is compacter, can accomplish littleer product size, has practiced thrift product cost, has saved the space that PCB was occupied.

Drawings

Fig. 1 is a perspective view of the assembled state of the copper bar connector.

Fig. 2 is an exploded view of the copper bar connector.

FIG. 3 is a sectional isometric view taken along the inside wall of the side plate of the insulator base with the side plug removed.

Fig. 4 is a cut-away isometric view of the insulator base at the top surface of the base plate.

Fig. 5 is a perspective view of the end cap.

Wherein, 1, insulating base; 11. a comb tooth slot; 111. reinforcing ribs; 12. the tail part is opened; 13. a partition plate; 14. A first wedge portion; 141. a first inclined plane; 142. a first stop; 2. a copper bar terminal assembly; 21. an installation part; 22. a docking portion; 23. a reinforcing sheet; 24. riveting; 3. an end cap; 31. a second wedge portion; 311. a second inclined plane; 312. a second stop; 32. a side plate; 33. a middle plate; 34. an end plate; 35. heat dissipation holes; 4. A side plug; 41. a boss; 42. a third wedge portion; 5. a clamping groove.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 and 2, the copper bar connector includes an insulating base 1, a copper bar terminal assembly 2, and an end cap 3 and a side plug 4 for fixing the copper bar terminal assembly 2 on the insulating base 1. (the terms front, rear, top, bottom, etc. herein indicating the orientation are all in the orientation of the product shown in fig. 1.) the middle of the front end of the insulating base 1 is provided with an opening for docking with the copper bar terminal assembly 2.

Two rows of comb tooth grooves 11 for inserting the copper bar terminal assembly 2 from the rear end are symmetrically and integrally formed on the top plate and the bottom plate of the insulation base 1, and tail openings 12 for inserting the side plates 32 of the end cover 3 are formed at the rear ends of the two rows of comb tooth grooves 11. Two adjacent groove bodies of the comb tooth grooves 11 are separated by a reinforcing rib 111, and a tail opening 12 is arranged between the rear end of the reinforcing rib 111 and the top plate or the bottom plate of the insulation base 1. The rear opening 12 is used for inserting the side plate 32 of the end cover 3, so that the structure of the connector is more compact. The end plate 34 of the end cover 3, which is located at the rear end of the copper bar terminal assembly 2, is provided with a heat dissipation hole 35 in a penetrating manner.

The terminal assembly 2 includes two oppositely disposed power terminals each including a mounting portion 21 for mounting a reinforcing strip 23 and a mating portion 22 inserted into the comb teeth slot 11. The number of the grooves in the comb tooth grooves 11 corresponds to the number of the copper sheets on the power supply terminal, and each copper sheet is correspondingly inserted into the groove. The copper sheet is slick and sly broken line type for when the plug, the copper sheet receives and can produce certain deformation along cell body depth direction when the extrusion, and the deflection follows extrusion force size automatic change, and the extrusion force disappears and can kick-back, has improved convenience and the stability of connecting when inserting.

The reinforcing plate 23 is riveted to the mounting portion 21 by a rivet 24. Three rivets 24 are arranged in an equilateral triangular shape to connect the mounting portion 21 and the reinforcing plate 23, and this rivet structure can reduce the width of the connector as much as possible. The reinforcing piece 23 can increase the positive force of the power supply terminal, so that the connector is more reliable and stable after being butted.

As shown in fig. 4 and 5, a first wedge portion 14 is provided on the partition plate 13 located between the two rows of combing grooves 11, and the partition plate 13 is integrally formed with the side plate of the insulating base 1. The end cap 3 is provided with a second wedge 31 which slides in and snaps along the first wedge 14. The top and bottom surfaces of the partition 13 are integrally formed with first wedge portions 14 in opposed relation. Two middle plates 33 are arranged between the two side plates 32 of the end cover 3 at intervals, and the rear ends of the two middle plates 33 are fixedly connected with an end plate 34. The partition plate 13 is inserted between two middle plates 33, and the surfaces of the two middle plates 33 adjacent to the partition plate 13 are respectively provided with second wedge parts 31, and each second wedge part 31 is matched with the adjacent first wedge part 14.

The first wedge portion 14 includes a first inclined surface 141 and a first stopper 142 disposed at a front end of the first inclined surface 141, the second wedge portion 31 includes a second inclined surface 311 and a second stopper 312 disposed at a rear end of the second inclined surface 311, the second inclined surface 311 is disposed opposite to the first inclined surface 141, and the second stopper 312 can abut against the first stopper 142. In the process of inserting the end cap 3 into the insulating base 1, the second inclined surface 311 slides along the first inclined surface 141 until the second stop 312 is clamped into the first stop 142, so as to prevent the end cap 3 from moving backwards.

As shown in fig. 2, the side plug 4 is provided with a third wedge 42 which slides into the insulating base 1 and is clamped. Third wedge portion 42 is fixed in the both sides of side stopper 4, includes the inclined plane and keeps off the platform through third wedge portion 42 equally, has had the guide effect on inclined plane, makes side stopper 4 slide in draw-in groove 5 more easily, then relies on the limit action of keeping off platform and insulating base 1 curb plate internal face and fix. The same side of the terminal assembly 2 and the insulating base 1 is provided with a slot 5 for the side plug 4 to be embedded in, the side plug 4 is inserted into the slot 5 from a rectangular hole penetrating through a side plate of the insulating base 1, and as shown in fig. 3, the slot 5 is a slot processed on the same side of the two power terminals, the reinforcing sheet 23, the partition plate 13 and the middle plate 33. Bosses 41 are fixed to both ends of the side plug 4, and the bosses 41 abut against end faces of the terminal assembly 2 located at both ends of the card slot 5. When the boss 41 prevents the deformation of the insulating base 1, the opening sizes of the two power terminals become large, so that the forward force between the terminals and the copper bar is ensured, and the connection reliability is improved.

Claims

1. A copper bar connector is characterized by comprising an insulation base (1), a copper bar terminal assembly (2), an end cover (3) and a side plug (4), wherein the end cover (3) is used for fixing the copper bar terminal assembly (2) on the insulation base (1);

two rows of comb tooth grooves (11) for inserting the copper bar terminal assembly (2) from the rear end are symmetrically arranged on the top plate and the bottom plate of the insulating base (1), the rear end of each comb tooth groove (11) is provided with a tail opening (12) for inserting a side plate (32) of the end cover (3), a partition plate (13) between the two rows of comb tooth grooves (11) is provided with a first wedge-shaped part (14), and the end cover (3) is provided with a second wedge-shaped part (31) which slides in and is clamped along the first wedge-shaped part (14);

the terminal assembly (2) with the homonymy of insulating base (1) is provided with the confession draw-in groove (5) that side stopper (4) embedded, be provided with on side stopper (4) and slide into third wedge portion (42) in insulating base (1) and the joint.

2. Copper bar connector according to claim 1, characterized in that the terminal assembly (2) comprises two oppositely arranged power terminals, each power terminal comprising a mounting portion (21) for mounting a reinforcing blade (23) and a mating portion (22) inserted into the comb slot (11), the reinforcing blade (23) being connected to the mounting portion (21) by means of a rivet (24).

3. Copper bar connector according to claim 2, characterised in that three rivets (24) are distributed in an equilateral triangle to connect the mounting portion (21) and the reinforcing sheet (23).

4. The copper bar connector according to claim 1, wherein two adjacent grooves of the comb tooth grooves (11) are separated by a reinforcing rib (111), and the tail opening (12) is arranged between the rear end of the reinforcing rib (111) and the top plate or the bottom plate of the insulation base (1).

5. The copper bar connector according to claim 1, wherein the first wedge-shaped portions (14) are symmetrically arranged on the top surface and the bottom surface of the partition plate (13), two middle plates (33) are arranged between the two side plates (32) of the end cover (3) at intervals, the partition plate (13) is inserted between the two middle plates (33), and the second wedge-shaped portions (31) are respectively arranged on the surfaces of the two middle plates (33) adjacent to the partition plate (13).

6. The copper bar connector according to claim 1, wherein the first wedge portion (14) comprises a first inclined surface (141) and a first blocking platform (142) arranged at a front end of the first inclined surface (141), the second wedge portion (31) comprises a second inclined surface (311) and a second blocking platform (312) arranged at a rear end of the second inclined surface (311), the second inclined surface (311) is arranged opposite to the first inclined surface (141), and the second blocking platform (312) can abut against the first blocking platform (142).

7. The copper bar connector according to claim 1, wherein the end cap (3) is provided with heat dissipation holes (35) through the end plate (34) at the rear end of the copper bar terminal assembly (2).

8. The copper bar connector according to claim 1, wherein bosses (41) are fixed to both ends of the side plugs (4), and the bosses (41) abut against end faces of the terminal assemblies (2) located at both ends of the slot (5).