CN219892559U

CN219892559U - Connector and battery module

Info

Publication number: CN219892559U
Application number: CN202321501005.3U
Authority: CN
Inventors: 项经耀
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-10-24
Anticipated expiration: 2033-06-12

Abstract

The utility model provides a connector and a battery module, which comprises a sheath, a fuse, a spring piece and a button, wherein the sheath is provided with a containing groove and a wiring hole; the button is hinged with the sheath; the elastic piece comprises a first connecting part, a second connecting part and a third connecting part which are sequentially connected, and the first connecting part is provided with a through hole; the tail end of the third connecting part extends into the through hole; the fuse is arranged in the accommodating groove, and the tail end of the fuse stretches into the through hole; the wire passes through the wiring hole and the through hole, and the elastic sheet is elastically deformed after being extruded by the button and relatively compresses the wire and the fuse. The fuse is separated from the FPC or the CCS and is connected with the lead through the elastic sheet, so that the installation, the disassembly and the maintenance are convenient; the elastic sheet formed by sequentially bending the conductive metal sheets is arranged, so that the conductive wires can be conveniently and rapidly fixed; an observation hole is formed, so that the fuse fusing condition can be observed conveniently; the sheath is detachable, so that the fuse can be conveniently and rapidly installed and replaced.

Description

Connector and battery module

Technical Field

The utility model relates to the field of electric devices, in particular to a connector and a battery module.

Background

For lithium ion battery modules, it is necessary to monitor the cell voltage and temperature in real time. Currently, there are two connection modes for cell voltage and temperature sampling: the first is connected by a harness or harness isolation board, and the second is connected by an FPC or CCS.

For the battery module adopting FPC or CCS to connect sampling, the fuse is generally integrated on the FPC or CCS, one end of the FPC or CCS is welded with a nickel sheet and is fixed with the battery core pole, and the other end of the FPC or CCS is connected with the PCB by adopting a plug-in connector. If the circuit has a short circuit problem, the fuse of the FPC or the CCS is blown, and the slave BMU is burned out, so that the FPC or the CCS and the slave BMU can only be replaced integrally, the replacement cost and a large amount of maintenance time are affected, and the detachable maintenance scheme of the fuse is particularly important.

Aiming at the technical problem CN 216850395U, a replaceable collection assembly with an etched fuse FPC and a battery module are disclosed, the collection assembly is connected onto a connector in an inserting mode in a replaceable mode, and after the fuse on a circuit of the collection assembly is melted, only the burned FPC is detached to replace a new FPC, and the whole module is not required to be scrapped. However, the above solution still needs to be detached and replaced, and still has a problem of high cost.

Disclosure of Invention

In view of the above, the present utility model provides a connector and a battery module, which do not need to disassemble and replace the FPC or CCS when the fuse is blown.

The technical scheme of the utility model is realized as follows:

in one aspect, the present utility model provides a connector comprising a sheath, a fuse, a spring and a button,

the sheath is provided with an accommodating groove and a wiring hole;

the button is hinged with the sheath;

the elastic sheet comprises a first connecting part, a second connecting part and a third connecting part which are connected in sequence, wherein,

a first connecting part provided with a through hole;

the tail end of the third connecting part extends into the through hole;

the fuse is arranged in the accommodating groove, and the tail end of the fuse stretches into the through hole;

the wire passes through the wiring hole and the through hole, and the elastic sheet is elastically deformed after being extruded by the button and relatively compresses the wire and the fuse.

On the basis of the above technical scheme, preferably, the first connecting portion, the second connecting portion and the third connecting portion are formed by sequentially bending conductive metal sheets, the suspended tail end of the first connecting portion is provided with a through hole, and the suspended tail end of the third connecting portion extends into the through hole.

On the basis of the technical scheme, preferably, the third connecting part is supported by the fuse, and the first connecting part is tightly attached to the side wall of the accommodating groove.

On the basis of the above technical scheme, preferably, one end of the first connecting portion, which is far away from the through hole, is contacted with the button, a sinking cavity is formed at the communication position of the accommodating groove and the wiring hole, and the tail end of the first connecting portion can move up and down in the sinking cavity.

On the basis of the technical scheme, preferably, the middle part of the button is hinged with the sheath, one end of the button is contacted with the first connecting part, and the other end of the button is clamped with the sheath.

On the basis of the above technical solution, preferably, the wire is disposed between the bottom surface of the fuse and the lower surface of the through hole.

On the basis of the above technical solution, preferably, the button seals the top opening of the accommodating groove.

On the basis of the above technical solution, preferably, the cross-sectional dimensions of the end portions of the second connecting portion and the fuse extending into the through hole are smaller than the non-divided cross-sectional dimensions of the respective bodies.

On the basis of the technical scheme, preferably, an observation hole is formed in the sheath, a transparent sealing piece is arranged at the observation hole, the observation hole is arranged opposite to the fuse fusing part, and the elastic sheet is hollowed out opposite to the fuse fusing part.

On the basis of the technical scheme, preferably, the sheath comprises a base and an upper cover, the base and the upper cover are detachably connected with each other, and the containing groove and the wiring hole are formed on the contact interface of the base and the upper cover.

In a second aspect, the present utility model provides a battery module comprising the connector according to the first aspect of the present utility model.

Compared with the prior art, the connector and the battery module have the following beneficial effects:

(1) The fuse is separated from the FPC or the CCS and is connected with the lead through the elastic sheet, so that the installation, the disassembly and the maintenance are convenient;

(2) The elastic sheet formed by sequentially bending the conductive metal sheets is arranged, so that the conductive wires can be conveniently and rapidly fixed;

(3) An observation hole is formed, so that the fuse fusing condition can be observed conveniently;

(4) The sheath is detachable, so that the fuse can be conveniently and rapidly installed and replaced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a connector (3 assemblies) of the present utility model;

fig. 2 is a top view of the connector (3 assemblies) of the present utility model;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

fig. 4 is an exploded view of the connector (1) of the present utility model;

FIG. 5 is a state diagram of the connector of the present utility model before threading the spring plate;

fig. 6 is a state diagram of the connector of the present utility model after threading the spring.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1 to 4, the connector of the present utility model includes a sheath 1, a fuse 2, a spring 3, and a button 4.

The sheath 1 is provided with a containing groove 101 and a wiring hole 102. The accommodating groove 101 is used for accommodating the fuse 2 and the spring plate 3; the wire hole 102 is used for the wire S to pass through, and generally two wire holes 102 are required to be provided, which are respectively connected in and out.

In particular, the sheath 1 may be designed to be detachable for ease of installation and replacement of the fuse 2. Specifically, the sheath 1 includes a base 11 and an upper cover 12, the base 11 and the upper cover 12 are detachably connected to each other, and a receiving groove 101 and a wiring hole 102 are formed on a contact interface of the two. In this way, the upper cover 12 can be opened along the axial direction of the wiring hole 102, thereby installing and replacing the fuse 2. Specifically, a buckle and a clamping groove can be respectively arranged on the base 11 and the upper cover 12, so as to realize detachable connection.

The button 4 is hinged with the sheath 1. By rotating the button 4, the end part of the button is pressed against the spring plate 3, so that the wire S and the fuse 2 are relatively pressed. Specifically, the middle part of the button 4 is hinged with the sheath 1, one end of the button is contacted with the spring plate 3, and the other end of the button is clamped with the sheath 1. Thus, when the elastic sheet 3 is not required to be extruded, the button 4 can be clamped with the sheath 1. As a specific implementation manner of the two clamping connection, a buckle and a clamping groove can be respectively arranged on the button 4 and the sheath 1. Specifically, the button 4 seals the top opening of the accommodating groove 101, and when the button 4 is clamped and fixed with the sheath 1, the top opening of the accommodating groove 101 is in a sealed state, so as to prevent dust from entering.

A spring plate 3 comprising a first connecting part 31, a second connecting part 32 and a third connecting part 33 which are sequentially connected, wherein,

the first connection portion 31 is provided with a through hole 310;

the end of the third connecting portion 33 extends into the through hole 310.

The fuse 2 is disposed in the accommodating groove 101, and the tip thereof extends into the through hole 310. Specifically, a shallow groove with a shape corresponding to the fuse 2 is formed at the bottom of the accommodating groove 101, so that the fuse 2 is embedded and prevented from moving horizontally.

The wire S passes through the wire hole 102 and the through hole 310, and the spring plate 3 is elastically deformed after being pressed by the button 4 and relatively compresses the wire S and the fuse 2.

Thus, as shown in fig. 5 to 6, when the button 4 is turned to press the elastic piece 3 at the end portion thereof and the through hole 310 is moved downward with respect to the third connection portion 33 and the end of the fuse 2, the lead S can be passed through the wire hole 102 and the through hole 310. And the button 4 is reset, the elastic sheet 3 is reset along with the reset, and the through hole 310 moves upwards relative to the third connecting part 33 and the tail end of the fuse 2, so that the lead S and the fuse 2 can be compressed, and the function of electrically connecting the lead S and the fuse 2 is further realized. Specifically, after the connection is completed, the conductive wire S is disposed between the bottom surface of the fuse 2 and the lower surface of the through hole 310.

Specifically, the first connecting portion 31, the second connecting portion 32 and the third connecting portion 33 are formed by sequentially bending conductive metal sheets, the suspended end of the first connecting portion 31 is provided with a through hole 310, and the suspended end of the third connecting portion 33 extends into the through hole 310.

Specifically, the third connecting portion 33 is supported by the fuse 2, and the first connecting portion 31 is abutted against the side wall of the accommodating groove 101. In this way, the fuse 2 and the side wall of the accommodating groove 101 can respectively play a role of limiting and supporting the third connecting portion 33 and the first connecting portion 31.

Specifically, one end of the first connecting portion 31 far away from the through hole 310 contacts with the button 4, a sinking cavity 104 is disposed at a position where the accommodating groove 101 is communicated with the wiring hole 102, and the end of the first connecting portion 31 can move up and down in the sinking cavity 104. Specifically, the shape of the sinking cavity 104 is adapted to the end of the first connecting portion 31. When the button 4 is rotated, the button 4 presses the first connection part 31 to drive the first connection part 31 to move downward, and the through-hole 310 moves downward with respect to the third connection part 33 and the fuse 2, so that the wire S passes through.

Specifically, the cross-sectional dimensions of the end portions of the second connecting portion 32 and the fuse 2 extending into the through hole 310 are smaller than the non-divided cross-sectional dimensions of the respective bodies. Thus, the second connecting portion 32 and the fuse 2 can be limited to a certain extent, and can be prevented from being separated.

In order to facilitate observation of the fusing state of the fuse 2, an observation hole 103 is formed in the sheath 1, a transparent sealing piece is arranged at the observation hole 103, the observation hole 103 is arranged opposite to the fusing part of the fuse 2, and a hollow-out 30 is formed opposite to the fusing part of the fuse 2 by the elastic sheet 3. Thus, through the observation hole 103 and the hollow-out 30, whether the fuse 2 is blown or not can be observed, thereby determining whether to replace the fuse 2 or not. In particular, the transparent seal may be glass.

When the connector of the present utility model is used for a battery module, the number of connectors may be selected according to the number of pins set:

when only 1pin is used for connection, one connector can be selected;

when 2pin connection is used, 2 connectors are combined into a 2pin connector assembly;

when 3pin connections are used, 3 connectors are assembled into a 3pin connector assembly, as shown in fig. 1;

when a 4pin connection is used, 4 connectors are assembled into a 4pin connector assembly, and so on, a multiple pin connector may be assembled.

The connector of the utility model is used as follows:

when the connection wire S is needed: releasing the clamping connection between the button 4 and the sheath 1, rotating the button 4, pressing the first connecting part 31 by the button 4, driving the first connecting part 31 to move downwards, and moving the through hole 310 downwards relative to the third connecting part 33 and the fuse 2, so that the lead S passes through, and the tail end of the lead S is arranged between the bottom surface of the fuse 2 and the lower surface of the through hole 310;

then, the button 4 rotates and is engaged with the sheath 1, and in this process, the first connection part 31 is reset and moves upward, clamping the wire S with the fuse 2.

When the circuit is short-circuited or instant heavy current occurs, the middle part of the fuse 2 is fused, the ablation fusing condition can be observed from the observation hole 103, and the connector can be replaced for maintenance;

the fuse 2 can be replaced even further alone: the base 11 and the upper cover 12 are connected and separated by the buckle, then the elastic sheet 3 and the fuse 2 are taken out, the new fuse 2 is replaced, the elastic sheet 3 is installed, and then the base 11 and the upper cover 12 are connected by the buckle, so that the repair for replacing the fuse 2 is completed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a connector, its includes sheath (1), fuse (2), shell fragment (3) and button (4), its characterized in that:

the sheath (1) is provided with an accommodating groove (101) and a wiring hole (102);

a button (4) hinged with the sheath (1);

a spring plate (3) comprising a first connecting part (31), a second connecting part (32) and a third connecting part (33) which are sequentially connected, wherein,

a first connection part (31) provided with a through hole (310);

a third connection part (33) with the end extending into the through hole (310);

a fuse (2) arranged in the accommodating groove (101), the tail end of which extends into the through hole (310);

the wire (S) passes through the wiring hole (102) and the through hole (310), and the elastic sheet (3) is elastically deformed after being extruded by the button (4) and relatively compresses the wire (S) and the fuse (2).

2. The connector of claim 1, wherein: the first connecting part (31), the second connecting part (32) and the third connecting part (33) are sequentially bent and formed by conductive metal sheets, through holes (310) are formed in the suspended tail ends of the first connecting part (31), and the suspended tail ends of the third connecting part (33) extend into the through holes (310).

3. The connector of claim 2, wherein: the third connecting portion (33) is supported by the fuse (2), and the first connecting portion (31) is abutted against the side wall of the accommodating groove (101).

4. A connector as claimed in claim 3, wherein: one end of the first connecting part (31) far away from the through hole (310) is contacted with the button (4), a sinking cavity (104) is arranged at the communication part of the accommodating groove (101) and the wiring hole (102), and the tail end of the first connecting part (31) can move up and down in the sinking cavity (104).

5. The connector as defined in claim 4, wherein: the middle part of the button (4) is hinged with the sheath (1), one end of the button is contacted with the first connecting part (31), and the other end of the button is clamped with the sheath (1).

6. The connector of claim 1, wherein: the lead (S) is arranged between the bottom surface of the fuse (2) and the lower surface of the through hole (310).

7. The connector of claim 1, wherein: the cross-sectional dimensions of the end portions of the second connecting portion (32) and the fuse (2) respectively extending into the through hole (310) are smaller than the non-divided cross-sectional dimensions of the respective bodies.

8. The connector of claim 1, wherein: an observation hole (103) is formed in the sheath (1), a transparent sealing piece is arranged at the observation hole (103), the observation hole (103) is opposite to the fusing part of the fuse (2), and the elastic piece (3) is opposite to the fusing part of the fuse (2) and is provided with a hollowed-out part (30).

9. The connector of claim 1, wherein: the sheath (1) comprises a base (11) and an upper cover (12), wherein the base (11) and the upper cover (12) are detachably connected with each other, and an accommodating groove (101) and a wiring hole (102) are formed on a contact interface of the base and the upper cover.

10. A battery module, characterized in that: comprising a connector according to any one of claims 1 to 9.