CN109659729B

CN109659729B - Connecting terminal and bracket component for battery module

Info

Publication number: CN109659729B
Application number: CN201811438745.0A
Authority: CN
Inventors: 陈宇平; 张自财
Original assignee: Kunshan Changying Precision Technology Co ltd
Current assignee: Kunshan Changying Precision Technology Co ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-06-12
Anticipated expiration: 2038-11-28
Also published as: CN109659729A

Abstract

A connecting terminal comprises a plate-shaped base part, a contact arm torn from the plate-shaped base part, a tearing hole formed at the tearing part below the contact arm, and a clamping hook formed by upward stamping from two transverse sides of the front end of the tearing hole, wherein the contact arm comprises a first elastic arm formed by tearing the plate-shaped base part and extending obliquely upwards, a second elastic arm formed by obliquely and downwards extending from the top end of the first elastic arm, an upturned part formed by bending and obliquely and upwards extending from the tail end of the second elastic arm, and a contact part formed at the tail end of the second elastic arm; this application connecting terminal is convenient for the dismantlement of bracket component, convenient maintenance.

Description

Connecting terminal and bracket component for battery module

Technical Field

The present disclosure relates to a battery and an electrical connector, and more particularly, to a connecting terminal and a bracket assembly for a battery module.

Background

The vehicle battery support is a component for a battery pack (such as a vehicle battery), and is erected on the vehicle battery and transmits battery energy. The transmission of battery energy requires transmission through cables or FPC (flexible circuit board) cords laid on the rack assembly and soldered together for electrical transmission with contacts embedded on the rack assembly. Contact members on the support assembly are connected with the positive and negative poles of the battery, the FPC is welded with the contact members, and when the FPC is damaged or part of components are damaged, the support assembly needs to be integrally replaced, so that the maintenance cost is high, and the requirement of environmental protection is not facilitated.

Disclosure of Invention

In view of the above, it is desirable to provide a connection terminal and a bracket assembly for a battery module, which are easily disassembled to reduce maintenance costs.

In order to solve the technical problem, the application provides a connection terminal, which comprises a plate-shaped base portion, a contact arm torn from the plate-shaped base portion, a tearing hole formed at the tearing position below the contact arm, and a hook formed by upward punching from two lateral sides of the front end of the tearing hole, wherein the contact arm comprises a first elastic arm formed by tearing the plate-shaped base portion and extending obliquely upward, a second elastic arm formed by obliquely and downwardly extending from the top end of the first elastic arm, an upturned part formed by bending and obliquely and upwardly extending from the tail end of the second elastic arm, and a contact part formed at the tail end of the second elastic arm.

Preferably, the connection terminal is integrally formed on a bracket body, the bracket body is provided with a terminal groove, and the plate-shaped base is formed in the bracket body at the periphery of the terminal groove.

Preferably, the bracket body is provided with pre-pressing walls extending towards the terminal groove direction at two lateral sides of the terminal groove.

Preferably, the bottom surface of the pre-pressing wall is provided with an inclined guide surface.

Preferably, the lateral side wall of the terminal groove is located below the plate-shaped base portion and protrudes toward the terminal groove to form a first support block and a second support block, and the pre-pressing wall is located between the first support block and the second support block.

Preferably, through holes located below the preload wall are opened at both lateral sides of the tear hole of the plate-like base portion.

Preferably, the plate-shaped base is located at two lateral sides of the rear end of the tearing hole and is provided with an anti-over-insertion protrusion formed by upward punching, and the anti-over-insertion protrusion is opposite to the clamping hook.

Preferably, the connection terminal is used for inserting a plug assembly, the surface of the plug assembly is provided with gold fingers which are electrically abutted by the contact portion, the plug assembly is limited between the pre-pressing wall and the plate-shaped base portion in the vertical direction, and the rear end of the plug assembly is limited in the clamping hook.

Preferably, the plug assembly is inserted below the upwarping portion at an inclined angle, and the inclined guide surface of the pre-pressing wall gradually reduces the inclined angle of the plug assembly.

In order to solve the technical problem, the application further provides a support assembly for a battery module, which comprises the connecting terminal.

This application connecting terminal integrated into one piece in this is internal for the support, connecting terminal sets to the structure that can supply the plug, convenient to detach maintenance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Fig. 1 is a perspective view of a bracket assembly for a battery module according to the present application;

FIG. 2 is an enlarged partial view of the dotted circle shown in FIG. 1;

fig. 3 is a partial structural view of a bracket body of the bracket assembly for a battery module according to the present application;

fig. 4 is a perspective view of the conductive terminal of the connection terminal of the present application;

fig. 5 is a perspective view of the conductive terminal of the connection terminal of the present application formed on the bracket body;

FIG. 6 is a cross-sectional view of the present application taken along line A-A of FIG. 5;

FIG. 7 is a perspective view of a plug of the connection terminal of the present application;

FIG. 8 is a perspective view of another angle of the plug of the connection terminal of the present application;

FIG. 9 is a state view and a cross-sectional view of the plug of the connector of the present application inserted into the conductive terminal;

fig. 10 is a state view and a sectional view of the plug of the connection terminal of the present application after being completely inserted into the conductive terminal;

fig. 11 is a perspective view of a conductive terminal according to a second embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, the bracket assembly for a battery module according to the present invention includes a bracket body 10, a connection terminal 30 formed in the bracket body 10, and an FPC connection line 20 laid on the bracket body 10 and electrically connected to the connection terminal 30.

As shown in fig. 3 to fig. 6, the bracket body 10 is formed by injection molding of a plastic material, or the bracket body 10 includes other components and an injection molded plastic body, a terminal groove 11 is formed on the plastic body of the bracket body 10, and the connection terminal 30 is integrally formed in the terminal groove 11. The terminal groove 11 penetrates the bracket body 10 in a direction perpendicular to the bracket body 10, and supporting

blocks

12, 13 and a pre-pressing wall 14 extending from the top surface of the bracket body 10 toward the terminal groove 11 are formed on two transverse inner walls of the terminal groove 11 in a protruding manner. The supporting blocks comprise a first supporting block 12 and a second supporting block 13 which are distributed at the front side and the rear side of the terminal groove 11, and the pre-pressing wall 14 is positioned between the first supporting block 12 and the second supporting block 13. The bottom surface of the pre-pressing wall 14 is provided with an inclined guide surface 15 towards the opening direction, and the inclined guide surface 15 is gradually thickened along one end of the opening.

The connection terminal 30 includes a plate-shaped base portion 31 formed in the holder body 10, a contact arm 33 formed by being torn from the plate-shaped base portion 31, a tear hole 32 formed at a torn portion below the contact arm 33, an anti-skip projection 35 formed by being punched upward from both lateral sides of a rear end of the tear hole 32, a hook 34 formed by being punched upward from both lateral sides of a front end of the tear hole 32, a through hole 36 formed on both lateral sides of the tear hole 32 of the plate-shaped base portion 31, and a plurality of positioning holes 37 formed in the plate-shaped base portion 31. The over-insertion preventing protrusion 35 is opposite to the tearing direction of the hook 34.

The contact arm 33 includes a first elastic arm 331 formed by tearing the plate-shaped base 31 and extending obliquely upward, a second elastic arm 332 formed by extending obliquely downward from a top end of the first elastic arm 331, an upturned portion 334 formed by bending and extending obliquely upward from a tip end of the second elastic arm 332, and a contact portion 333 formed at a tip end of the second elastic arm 332. The contact arm 33 is located above the tear hole 32.

After the connection terminal 30 is molded in the holder body 10, the plate-shaped base portion 31 is supported on the first and

second support blocks

11 and 12 at both lateral sides of the tear hole 32. The through holes 36 on both sides of the tear hole 32 of the plate-like base 31 in the lateral direction are located below the pre-pressing wall 14 and correspond to each other.

As shown in fig. 7 and 8, the FPC connecting line 20 includes a transmission line 21 and a plug 22 disposed on the transmission line 21.

The plug assembly 22 includes a substrate 221, a transmission line 21 fixed on the substrate 221, and a pull strip 224 attached to the substrate 221. The substrate 221 is made of a hard material, such as a PCB, and a groove structure 2211 is formed on a surface of a middle portion of the substrate 221. The transmission line 21 is provided with a gold finger 223, the transmission line 21 provided with the gold finger 223 is fixed in the groove structure 2211 of the substrate 221, and the gold finger 223 is exposed on the surface of the substrate 221. The pull strip 224 comprises a cut-out part 2241 corresponding to the position of the golden finger 223, attaching parts 2242 located on two lateral sides of the cut-out part 2241, and a handle part 2243 suspended from the rear end of the attaching part 2242 in a rear extending mode.

Laminating portion 2242 pastes to cover and is fixed in the base plate 221 surface of golden finger both sides, base plate 221 reaches still be equipped with fixed orifices 2244 on laminating portion 2242 with base plate 221 is together fixed better.

With reference to fig. 9 and 10, the principle of inserting the plug assembly 20 of the FPC connecting line 20 into the connecting terminal 30 will be described in detail.

The plug assembly 22 is first inserted obliquely below the upturned portion 224 of the connection terminal 30, and at this time, the bottom surface of the substrate 221 of the plug assembly 22 is in contact with the plate-shaped base 31 of the connection terminal 30, the upper surface of the base plate 221 is restricted below the pre-pressing wall 14 of the holder body 10, the plug assembly 22 is continuously pushed in and the inclination of the plug assembly 22 is gradually reduced, the inclined guide surface 15 of the bottom surface of the pre-pressing wall 14 can gradually decrease the inclination of the plug assembly 22 until the plug assembly 22 is parallel to the plate-shaped base 31, when the plug assembly 22 is fully inserted, the substrate 221 is limited between the anti-over-insertion protrusion 35 of the plate-shaped base 31 and the hook 34, the catches 34 prevent withdrawal of the plug assembly 22 and the anti-over-insertion projections 35 prevent over-insertion of the plug assembly 22 to damage the contact arms 33. The contact portion 333 of the contact arm 33 is pressed down onto the gold finger 223 on the surface of the substrate 221 and electrically contacted.

When the plug assembly 22 needs to be pulled out, the handle 2243 of the pull strip 224 is lifted upwards to incline the base plate 221 until the rear end of the base plate 221 is lifted upwards out of the limit of the hook 34, so that the pull strip 224 can be pulled out backwards.

Referring to fig. 11, another embodiment of the connection terminal 30 of the present application is different from the connection terminal 30 in that: the connecting terminal 30 further includes a retaining wall 38 formed by bending and extending upward from the plate-shaped base 31 at both lateral sides of the contact arm 33, the top of the retaining wall 38 is bent and extended oppositely to form a stop member 381, the stop member 381 replaces the pre-pressing wall 14, and in this embodiment, the pre-pressing wall 14 is not required on the top surface of the terminal slot 10 of the bracket body 10.

This application connecting terminal 30 integrated into one piece in support body 10, connecting terminal 30 sets to the structure that can supply plug 22 plug, convenient to detach maintenance.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A connecting terminal is characterized by comprising a plate-shaped base part, a contact arm formed by tearing from the plate-shaped base part, a tearing hole formed at the tearing part below the contact arm, a clamping hook formed by upward punching from the two transverse sides of the front end of the tearing hole, and an anti-over-insertion projection formed by upward punching from the two transverse sides of the rear end of the tearing hole, the anti-over-insertion protrusion is opposite to the tearing direction of the clamping hook, the contact arm comprises a first elastic arm formed by tearing the platy base part and extending upwards in an inclined mode, a second elastic arm formed by extending the top end of the first elastic arm downwards in an inclined mode, an upturned part formed by bending the tail end of the second elastic arm and extending upwards in an inclined mode and a contact part formed at the tail end of the second elastic arm, the connecting terminal is used for inserting a plug assembly, and a substrate of the plug assembly is limited between the over-insertion preventing protrusion and the clamping hook.

2. A connecting terminal according to claim 1, wherein the connecting terminal is integrally formed on a holder body, the holder body is provided with terminal grooves, and the plate-like base portion is formed in the holder body at the outer periphery of the terminal grooves.

3. A connecting terminal according to claim 2, wherein the holder body is formed with pre-pressing walls extending toward the terminal groove at both lateral sides of the terminal groove.

4. A connecting terminal according to claim 3, wherein the bottom surface of the pre-pressing wall is provided with an inclined guide surface.

5. A connecting terminal according to claim 3, wherein lateral side walls of the terminal groove are located below the plate-shaped base portion and protrude toward the terminal groove to form first and second support blocks, and the pre-pressing wall is located between the first and second support blocks.

6. A connecting terminal according to claim 5, wherein the plate-like base portion has through holes formed in both lateral sides of the tear hole and located below the preload wall.

7. The connecting terminal according to claim 4, wherein the plug member has gold fingers on a surface thereof and is electrically held by the contact portion, and the plug member is vertically confined between the pre-pressing wall and the plate-like base portion.

8. The connection terminal according to claim 7, wherein the plug assembly is inserted under the upwarp portion at an inclined angle, and the inclined guide surface of the pre-pressing wall gradually decreases the inclined angle of the plug assembly.

9. A battery module-use holder assembly comprising the connection terminal according to any one of claims 1 to 8.