CN220752170U

CN220752170U - Battery cell clamp

Info

Publication number: CN220752170U
Application number: CN202321565650.1U
Authority: CN
Inventors: 郑介介; 单华强; 薛玉峰; 李松松
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2024-04-09
Anticipated expiration: 2033-06-19

Abstract

The utility model belongs to the technical field of battery detection and discloses a battery core clamp which comprises a base, a parallelogram rod group and a driving piece, wherein the parallelogram rod group is arranged on the base and comprises a first clamping rod, a first connecting rod, a second clamping rod and a second connecting rod which are sequentially hinged end to end, the first clamping rod and the second clamping rod are oppositely arranged, the first connecting rod and the second connecting rod are oppositely arranged, the middle parts of the first connecting rod and the second connecting rod are hinged with the base, and the first clamping rod, the first connecting rod, the second clamping rod and the second connecting rod are jointly enclosed to form a clamping space; the driving piece is arranged on the base, and the driving piece can drive the parallelogram rod group to deform, so that the first clamping rod and the second clamping rod are close to each other and clamp the battery cell. The battery core clamp provided by the utility model has a simple structure, can be suitable for battery cores with different sizes and specifications, and has strong use compatibility.

Description

Battery cell clamp

Technical Field

The utility model relates to the technical field of battery detection, in particular to a battery core clamp.

Background

The cell verification test is an important part of the battery pack processing and assembling process. Most of the time, the whole vehicle factory has a plurality of battery cell test verification tasks in the same period. Based on different vehicle types and design requirements, the battery cells are very likely to contain soft package battery cells with different size specifications. The existing battery cell clamp is designed according to the battery cell size, one set of clamp corresponds to a battery cell with one size specification, at most, the battery cell is small-amplitude adjustable in the size range, and when the battery cells with different sizes are tested and verified each time, one set of battery cell clamp corresponding to the battery cell model needs to be designed and researched, so that the cost investment is high, the processing period is long, and the use compatibility is poor.

Disclosure of Invention

The utility model aims to provide a battery cell clamp which is simple in structure, can be suitable for battery cells with different sizes and specifications and is high in use compatibility.

To achieve the purpose, the utility model adopts the following technical scheme:

a cell clamp, comprising:

a base;

the parallelogram rod group is arranged on the base and comprises a first clamping rod, a first connecting rod, a second clamping rod and a second connecting rod which are sequentially hinged end to end, the first clamping rod is arranged opposite to the second clamping rod, the first connecting rod is arranged opposite to the second connecting rod, the middle parts of the first connecting rod and the second connecting rod are hinged to the base, and the first clamping rod, the first connecting rod, the second clamping rod and the second connecting rod enclose together to form a clamping space;

the driving piece is arranged on the base and can drive the parallelogram rod group to deform, so that the first clamping rod and the second clamping rod are close to each other and clamp the battery cell.

Preferably, the driving piece is a screw, a screw hole is formed in the base, and the screw penetrates through the screw hole and is in threaded connection with the screw hole;

the screw rod is screwed in the screw hole can stretch out and draw back relative to the screw hole, the screw rod outwards extends in towards one end of the parallelogram rod group in the screw hole can push against one of the first clamping rod and the second clamping rod, so that the parallelogram rod group deforms to enable the first clamping rod and the second clamping rod to be close to each other.

Preferably, the device further comprises a reset piece, wherein the reset piece can enable the first clamping rod and the second clamping rod to always have a trend of being away from each other.

Preferably, the reset piece is provided as a spring, a first end of the spring is fixed on the base, and a second end of the spring is fixed on one of the first clamping rod and the second clamping rod.

Preferably, the base is provided with a conductive member in a penetrating manner, one end of the conductive member, facing the parallelogram rod group, is used for being connected with the electrode lug of the battery cell, and one end of the conductive member, facing away from the parallelogram rod group, is used for being connected with an external charging and discharging circuit.

Preferably, the base is provided with a sliding long hole, and the conductive piece is arranged in the sliding long hole in a penetrating manner and is connected with the sliding long hole in a sliding manner.

Preferably, the base is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are arranged in a matrix.

Preferably, a pressure sensor is provided on the clamping end face of the first clamping lever and/or the second clamping lever.

Preferably, the first clamping rod and the second clamping rod are provided with insulating layers in a cladding mode.

Preferably, the device further comprises a housing detachably arranged on the base, a containing cavity is formed by the housing and the base together, and the parallelogram rod group is arranged in the containing cavity.

The beneficial effects are that:

the utility model provides a battery core clamp, wherein a parallelogram rod group is arranged on a base, the parallelogram rod group comprises a first clamping rod, a first connecting rod, a second clamping rod and a second connecting rod which are sequentially hinged end to end, the middle parts of the first connecting rod and the second connecting rod are hinged with the base, and the first clamping rod, the first connecting rod, the second clamping rod and the second connecting rod are enclosed together to form a clamping space. When the battery cell is clamped, the battery cell to be clamped is placed in the clamping space, the parallelogram rod group is driven by the driving piece to deform so that the first clamping rod and the second clamping rod are close to each other, and a pretightening force is applied to the battery cell, so that the battery cell is reliably clamped. In addition, the degree that the driving piece drive parallelogram pole group takes place deformation is different, can make first clamping lever and second clamping lever be close to each other the interval different, and then can carry out reliable centre gripping to the electric core of different size specifications, simple structure, use the compatibility strong.

Drawings

FIG. 1 is an exploded view of a cell clamp provided by the present utility model;

fig. 2 is a schematic diagram of a part of a structure of a cell fixture provided by the utility model;

FIG. 3 is a schematic view of the parallelogram lever assembly of the present utility model in situ;

FIG. 4 is a schematic diagram of a parallelogram lever assembly of the present utility model holding a cell of a particular size;

FIG. 5 is a schematic diagram of a parallelogram rod set of the present utility model holding a cell of another size specification;

FIG. 6 is a schematic view of a base portion provided by the present utility model;

fig. 7 is a schematic structural view of another view of the base portion according to the present utility model.

In the figure:

1. a base; 11. a screw hole; 12. a conductive member; 13. a sliding long hole; 14. a heat radiation hole;

2. a parallelogram lever group; 201. a clamping space; 21. a first clamping lever; 22. a first connecting rod; 221. a first hinge shaft; 23. a second clamping rod; 24. a second connecting rod; 241. a second hinge shaft;

3. a screw;

4. a spring;

5. a housing;

6. and a battery cell.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a battery cell clamp. Referring to fig. 1 to 2, the battery core fixture includes a base 1, a parallelogram rod group 2 and a driving member, wherein the parallelogram rod group 2 is disposed on the base 1, the parallelogram rod group 2 includes a first clamping rod 21, a first connecting rod 22, a second clamping rod 23 and a second connecting rod 24, which are hinged in sequence from end to end, the first clamping rod 21 is disposed opposite to the second clamping rod 23, the first connecting rod 22 is disposed opposite to the second connecting rod 24, the middle parts of the first connecting rod 22 and the second connecting rod 24 are both hinged with the base 1, and the first clamping rod 21, the first connecting rod 22, the second clamping rod 23 and the second connecting rod 24 jointly enclose a clamping space 201; the driving piece is arranged on the base 1, and can drive the parallelogram rod group 2 to deform, so that the first clamping rod 21 and the second clamping rod 23 are close to each other and clamp the battery cell 6.

Referring to fig. 5 of fig. 3, when the battery cell 6 is clamped, the battery cell 6 to be clamped is placed in the clamping space 201, and the driving member drives the parallelogram rod group 2 to deform so as to enable the first clamping rod 21 and the second clamping rod 23 to approach each other, and a pretightening force is applied to the battery cell 6, so that the battery cell 6 is reliably clamped. In addition, the degree that the driving piece drive parallelogram pole group 2 takes place deformation is different, can make the interval that first clamping lever 21 and second clamping lever 23 are close to each other different, and then can carry out reliable centre gripping to electric core 6 of different size specifications, simple structure, use the compatibility strong. Fig. 4 and 5 show a schematic diagram of the structure of the parallelogram lever assembly 2 for clamping two different sizes of the battery cells 6. In fig. 4 and 5, the driving member applies force to the parallelogram lever group 2 in the direction indicated by the arrow to drive the deformation of the parallelogram lever group 2.

In this embodiment, the first clamping rod 21 and the second clamping rod 23 clamp both sides of the cell 6 in the width direction at the same time, so that the force of the first clamping rod 21 and the second clamping rod 23 clamping the cell 6 is not changed due to expansion of the cell 6, and the device is more stable and reliable.

In this embodiment, the first clamping rod 21, the first connecting rod 22, the second clamping rod 23 and the second connecting rod 24 are all formed by cutting and shaping a PVC plate.

Specifically, the first connecting rod 22 is provided at a middle portion thereof with a first hinge shaft 221, the second connecting rod 24 is provided at a middle portion thereof with a second hinge shaft 241, and both the first hinge shaft 221 and the second hinge shaft 241 are hinged to the base 1.

Further, the battery cell clamp further comprises a housing 5, the housing 5 is detachably arranged on the base 1, a containing cavity is formed by the housing 5 and the base 1 together, and the parallelogram rod group 2 is arranged in the containing cavity. In this embodiment, the setting of the housing 5 can reliably cover the parallelogram lever group 2 and the battery cell 6, can isolate the influence of hot (cold) wind generated in the temperature changing process of the high-low temperature environment cabin, creates a relatively ideal environment for the battery cell 6, has small interference factors, and further ensures that the verification test of the battery cell 6 is more reliably and stably carried out.

In this embodiment, the housing 5 is formed by cutting, assembling and molding a PVC plate.

In this embodiment, referring to fig. 1 and 6, the driving member is a screw 3, a screw hole 11 is formed in the base 1, and the screw 3 passes through the screw hole 11 and is in threaded connection with the screw hole 11. The screw 3 is screwed in the screw hole 11 and can stretch out and draw back relative to the screw hole 11, and the screw 3 extends out of the screw hole 11 and can push one of the first clamping rod 21 and the second clamping rod 23, so that the parallelogram rod group 2 is deformed to enable the first clamping rod 21 and the second clamping rod 23 to be close to each other. In this embodiment, the screw 3 is disposed corresponding to one end of the first clamping rod 21, and in the process that one end of the screw 3 extending toward the parallelogram rod group 2 extends out of the screw hole 11, the first clamping rod 21 can be directly pushed against, so that the parallelogram rod group 2 is deformed, and the first clamping rod 21 and the second clamping rod 23 are close to each other.

The driving piece is set to be the screw rod 3, and the structural arrangement of the screw rod 3 in threaded connection with the screw hole 11 is adopted, so that the structure is simple, the operation is convenient, and the cost is low. In addition, the driving element may be provided as a driving cylinder, an electric push rod, or the like, and may automatically push the first clamping lever 21 or the second clamping lever 23, and the technical effect of the first clamping lever 21 and the second clamping lever 23 approaching each other may be achieved.

Further, the cell fixture further comprises a reset piece, and the reset piece can enable the first clamping rod 21 and the second clamping rod 23 to always have a trend of being away from each other. In this embodiment, when the first clamping rod 21 and the second clamping rod 23 are required to release the clamping of the battery cell 6, the screw 3 is reversely screwed into the screw hole 11, so that one end of the screw 3 facing the parallelogram lever group 2 is gradually far away from the first clamping rod 21, and the pushing of the first clamping rod 21 is released. Meanwhile, under the action of the resetting piece, the parallelogram rod group 2 can be driven to deform reversely, specifically, the first clamping rod 21 and the second clamping rod 23 gradually start to move towards the directions away from each other, so that the clamping of the battery cell 6 is released.

Specifically, the restoring member is provided as a spring 4, a first end of the spring 4 is fixed to the base 1, and a second end of the spring 4 is fixed to one of the first clamping rod 21 and the second clamping rod 23. In this embodiment, the first end of the spring 4 is fixed to the base 1, and the second end of the spring 4 is fixed to the second clamping rod 23.

Preferably, a pressure sensor (not shown) is provided on the clamping end face of the first clamping lever 21 and/or the second clamping lever 23. The arrangement of the pressure sensor can detect the pretightening force of the parallelogram lever group 2 acting on the battery cell 6 in real time, so that an operator can correspondingly adjust the telescopic position of the screw rod 3 relative to the screw hole 11 according to the detected pretightening force, and the pretightening force is adjusted to be within a reasonable range, so that the battery cell 6 is prevented from being damaged due to overlarge pretightening force of clamping.

Preferably, the first clamping bar 21 and the second clamping bar 23 are provided with an insulating layer (not shown) in a cladding manner. The arrangement of the insulating layer ensures that the whole clamp is safer and more reliable, and avoids the misoperation of operators.

In this embodiment, referring to fig. 6 to 7, a conductive member 12 is disposed on the base 1 in a penetrating manner, one end of the conductive member 12 facing the parallelogram lever group 2 is used for connecting with the tab of the battery 6, and one end of the conductive member 12 facing away from the parallelogram lever group 2 is used for connecting with an external charging and discharging circuit. In this embodiment, the conductive member 12 is configured to connect the tab of the battery 6 with an external charging/discharging circuit and realize electrical conduction, so as to facilitate the verification test.

Further, a sliding long hole 13 is formed in the base 1, and the conductive member 12 is inserted into the sliding long hole 13 and is slidably connected with the sliding long hole 13. The sliding long holes 13 are arranged, so that the position of the conductive piece 12 can be adjusted along the sliding long holes 13, and the positions of the lugs of the battery cells 6 with different sizes can be corresponding.

In the present embodiment, the number of the conductive members 12 is set to two.

Further, various device signal acquisition harnesses may also be connected to the battery cell 6 through the sliding slot 13.

In this embodiment, the conductive member 12 is a stud bolt made of metal.

Further, a plurality of heat dissipation holes 14 are formed in the base 1, and the plurality of heat dissipation holes 14 are arranged in a matrix. The heat dissipation holes 14 increase the heat exchange between the clamping space 201 and the outside, and accelerate the heat dissipation of the clamping space 201.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A cell clamp, comprising:

a base (1);

the parallelogram rod group (2) is arranged on the base (1), the parallelogram rod group (2) comprises a first clamping rod (21), a first connecting rod (22), a second clamping rod (23) and a second connecting rod (24) which are sequentially hinged end to end, the first clamping rod (21) and the second clamping rod (23) are oppositely arranged, the first connecting rod (22) and the second connecting rod (24) are oppositely arranged, the middle parts of the first connecting rod (22) and the second connecting rod (24) are hinged with the base (1), and the first clamping rod (21), the first connecting rod (22), the second clamping rod (23) and the second connecting rod (24) jointly enclose to form a clamping space (201);

the driving piece is arranged on the base (1), and can drive the parallelogram rod group (2) to deform, so that the first clamping rod (21) and the second clamping rod (23) are close to each other and clamp the battery cell (6).

2. The battery cell clamp according to claim 1, wherein the driving piece is a screw (3), a screw hole (11) is formed in the base (1), and the screw (3) penetrates through the screw hole (11) and is in threaded connection with the screw hole (11);

screw rod (3) revolve twist in screw (11) can be relative screw (11) are flexible, screw rod (3) orientation parallelogram pole group (2) one end overhang in screw (11) can be right first clamping lever (21) with one of them of second clamping lever (23) pushes away, makes parallelogram pole group (2) take place deformation so that first clamping lever (21) with second clamping lever (23) are close to each other.

3. The cell clamp according to claim 1, further comprising a return element enabling the first clamping bar (21) and the second clamping bar (23) to always have a tendency to move away from each other.

4. A cell clamp according to claim 3, characterized in that the return element is provided as a spring (4), a first end of the spring (4) being fixed to the base (1), and a second end of the spring (4) being fixed to one of the first clamping rod (21) and the second clamping rod (23).

5. The battery core fixture according to claim 1, wherein a conductive piece (12) is arranged on the base (1) in a penetrating manner, one end of the conductive piece (12) facing the parallelogram rod group (2) is used for being connected with a tab of the battery core (6), and one end of the conductive piece (12) facing away from the parallelogram rod group (2) is used for being connected with an external charging and discharging circuit.

6. The battery cell clamp according to claim 5, wherein the base (1) is provided with a sliding long hole (13), and the conductive piece (12) is arranged through the sliding long hole (13) in a penetrating manner and is connected with the sliding long hole (13) in a sliding manner.

7. The battery cell clamp according to claim 1, wherein the base (1) is provided with a plurality of heat dissipation holes (14), and the plurality of heat dissipation holes (14) are arranged in a matrix.

8. The cell clamp according to claim 1, characterized in that a pressure sensor is provided on the clamping end face of the first clamping rod (21) and/or the second clamping rod (23).

9. The cell clamp according to claim 1, characterized in that the first clamping rod (21) and the second clamping rod (23) are provided with an insulating layer in a cladding manner.

10. The cell clamp according to claim 1, further comprising a housing (5), the housing (5) being detachably arranged on the base (1), the housing (5) and the base (1) together forming a receiving cavity, the parallelogram lever group (2) being arranged in the receiving cavity.