CN213633757U

CN213633757U - Tooling for battery cell circulation test

Info

Publication number: CN213633757U
Application number: CN202022480414.2U
Authority: CN
Inventors: 李树人
Original assignee: Svolt Energy Technology Wuxi Co Ltd
Current assignee: Svolt Energy Technology Wuxi Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-06
Anticipated expiration: 2030-10-30

Abstract

The utility model provides a frock is used in test of electricity core circulation, it includes the extrusion portion that sets up respectively in the double-phase offside of electric core, and the extrusion portion of both sides can be dismantled and connect together to can constitute and put between to electric core, and be equipped with in the extrusion portion of at least one side in order to constitute to electric core refrigerated cooling portion. Electric core circulation test frock, through set up in order constituting electric core refrigerated cooling portion on the extrusion portion of at least one side, can have better radiating effect to electric core in electric core circulation test experimentation to can effectively prevent electric core circulation in-process because the heat production leads to the decay aggravation, and then can improve the accuracy of electric core circulation test experiment.

Description

Tooling for battery cell circulation test

Technical Field

The utility model relates to a battery cell test equipment technical field, in particular to frock is used in test of battery cell circulation.

Background

At present, in batteries in the market, the performance of a lithium ion battery is the best, and the energy of the lithium ion battery with the same mass is 4-6 times that of a lead-acid battery and 2-3 times that of a nickel-metal hydride battery. And the lithium mine resources in China are rich, and the lithium ion battery has the potential of recycling, so more and more automobile manufacturers at home and abroad select the lithium ion battery as the power battery of the electric automobile. For the lithium battery, the cell cycle test experiment is particularly important, and because the structural design is unreasonable, the accuracy of the existing test tool for the cell cycle test is low, and the service life is short.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a frock is used in test of electric core circulation, and it can improve the accuracy to electric core circulation test.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a frock is used in test of electric core circulation, include in the extrusion portion that the double-phase offside of electric core set up respectively, the extrusion portion of both sides can dismantle and link together to can constitute and put between to electric core, and be equipped with on at least one side the extrusion portion can constitute to electric core refrigerated cooling portion.

Further, the cooling portion is a cooling channel configured on the pressing portion.

Further, the pressing part comprises a pressing plate with a groove and a base plate which is clamped between the pressing plate and the battery cell and covers the groove, the cooling channel is formed by the covered groove, and the base plate covers the battery cell.

Further, the squeezing parts on the two sides are connected together through a connecting piece.

Furthermore, the connecting piece comprises a bolt pair arranged on the extrusion parts penetrating through two sides.

Further, the nuts in the bolt pair are two nuts which are adjacently arranged.

Furthermore, an anti-rotation groove for embedding the head of the bolt in the bolt pair is formed on the extrusion part on one side.

Furthermore, the extrusion parts on two sides comprise a main body covering the battery core and connecting blocks protruding outwards from two ends of the main body respectively, and the connecting pieces are arranged on the connecting blocks.

Further, a spacer is arranged between the squeezing parts on the two sides to limit the distance between the squeezing parts on the two sides.

Furthermore, the spacer is sleeved on the connecting piece.

Compared with the prior art, the utility model discloses following advantage has:

(1) electric core circulation test frock, through set up in order constituting electric core refrigerated cooling portion on the extrusion portion of at least one side, can have better radiating effect to electric core in electric core circulation test experimentation to can effectively prevent electric core circulation in-process because the heat production leads to the decay aggravation, and then can improve the accuracy of electric core circulation test experiment.

(2) The cooling part adopts the cooling channel arranged on the extrusion part, the structure is simple, and the design and the implementation are convenient.

(3) The cooling channel is formed by the groove, the structure is simple, and the battery cell is covered by the base plate, so that the battery cell can be effectively prevented from deforming in the circulating process.

(4) The connecting piece adopts the bolt pair, simple structure, and the design implementation of being convenient for.

(5) The nuts are two adjacent to each other, so that the connection firmness between the two extrusion parts can be improved.

(6) The anti-rotation groove for embedding the bolt head is formed in the extrusion part, so that the bolt pair can be conveniently connected with the two connecting parts.

(7) Through setting up the spacer that the clamp was located between two extrusion portions, can effectively prevent to cause the extrusion to electric core.

(8) The spacer is sleeved on the connecting piece, and the spacer can be prevented from falling off between the two extrusion parts.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a tooling for a cell cycle test according to an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic structural diagram of a pressing plate according to an embodiment of the present invention;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

fig. 6 is a schematic structural view of a splint according to an embodiment of the present invention.

Description of reference numerals:

1. pressing a plate; 101. a groove; 102. a main body; 103. connecting blocks; 1031. connecting holes; 1032. an anti-rotation slot;

2. a splint; 201. a through hole;

3. a nut; 4. a bolt; 5. an electric core; 6. a backing plate.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a frock is used in test of electricity core circulation, and it includes the extrusion portion that sets up respectively in the double-phase contralateral of electricity core, and the extrusion portion of both sides can be dismantled and link together to can constitute and put between to electric core, and be equipped with in order to constitute the refrigerated cooling portion to electric core on the extrusion portion of at least one side.

The frock is used in test of electric core circulation of this embodiment through set up in order constituting electric core refrigerated cooling portion on the extrusion portion of at least one side, can have better radiating effect to electric core in electric core circulation test experimentation to can effectively prevent electric core circulation in-process because the heat production leads to the decay aggravation, and then can improve the accuracy of electric core circulation test experiment.

Based on the above overall structure, an exemplary structure of the tool for cell cycle testing of the present embodiment is shown in fig. 1 and fig. 2, which can be used for cycle testing of the cell 5 with the tabs on both sides, and the tool is integrally made of an aluminum alloy 6061, so as to meet the requirement of long-time cycle testing of the cell 5. In addition, the cooling portion of the present embodiment is configured only on the upper pressing portion shown in the state of fig. 1, and specifically, is configured as a cooling channel on the pressing portion, and the cooling channel may be configured to cool the battery cell 5 due to the flow of a cooling medium such as air or water. It should be noted that the cooling passages may be provided not only on the upper pressing portion but also on the lower pressing portion, and may be provided on the pressing portions on both sides.

At this time, in order to provide the cooling channel, as shown in fig. 1 and 2, in the present embodiment, the upper pressing portion includes a pressing plate 1 formed with a groove 101, and a backing plate 6 interposed between the pressing plate 1 and the battery cell 5 and covering the groove 101, and the cooling channel is formed by the covered groove 101. And the backing plate 6 covers the battery cell 5, so that the battery cell 5 can be effectively prevented from deforming in the circulating process. As shown in fig. 2 to 5, the pressure plate 1 includes a main body 102 capable of covering the battery cell 5, and two connection blocks 103 respectively protruding from two ends of the main body 102, wherein the two connection blocks 103 at two ends are respectively disposed oppositely, and each connection block 103 is configured with a connection hole 1031 through which a bolt 4 described below passes.

The grooves 101 are formed to penetrate in the width direction of the main body 102, and in order to improve the structural strength of the tool, the grooves 101 are arranged to be staggered with respect to the connection holes 1031. In addition, in order to improve the heat dissipation effect on the battery cell 5, the grooves 101 of the present embodiment are specifically a plurality of grooves arranged at intervals along the length direction of the main body 102. Of course, in addition to the cooling channel formed by the covered groove 101, the cooling channel may be formed by directly forming a through hole arranged in the width direction of the upper pressing portion. In this case, the upper pressing portion may be directly formed of a block structure, but the manufacturing cost and the manufacturing difficulty may be increased as compared to the structure formed of the pressing plate 1 and the pad 6.

In addition, in order to improve the coupling effect between the pressing portions on both sides, a rotation preventing groove 1032 is formed in the pressure plate 1 corresponding to the coupling hole 1031 so as to insert a head portion of a bolt 4 described below, and the coupling between the pressing portions on both sides is facilitated by providing the rotation preventing groove 1032. In the present embodiment, as shown in fig. 6 in combination with fig. 1 and 2, the lower pressing portion is a clamping plate 2 configured to follow the shape of the pressure plate 1, and corresponds to the connecting holes 1031, and through holes 201 are formed in the clamping plate 2 in one-to-one correspondence with the connecting holes 1031.

In this embodiment, in order to facilitate detachable connection between the pressing portions on both sides, the pressing portions on both sides are connected together by a connecting member as shown in fig. 1 and 2. As a possible implementation manner, the connection portion of the present embodiment specifically includes a bolt pair disposed through the pressing plate 1, the backing plate 6, and the clamping plate 2. In addition, in order to improve the connection effect, as shown in fig. 2, the nuts 3 in the bolt pair are two nuts which are adjacently arranged, and the heads of the bolts 4 are embedded in the anti-rotation grooves 1032, so that the deformation of the tool caused by the expansion force generated in the cycle process of the battery cell 5 can be effectively prevented.

In order to further improve the use effect, in particular to prevent the cell 5 from being squeezed, a spacer is provided between the squeezing portions on both sides to define a distance therebetween. Wherein, in order to prevent the spacer from falling off, the spacer of this embodiment is specifically the sleeve pipe of cover on locating bolt 4, and this sleeve pipe clamp is arranged between backing plate 6 and splint 2, and its thickness slightly is less than the thickness of electric core 5. It should be noted that, the spacer may be a sleeve sleeved on the bolt 4, or may be a spacer movably or fixedly disposed on the pressing plate 1 or the clamping plate 2, and may also define a distance between the pressing portions on both sides due to the connection between the pressing portions on both sides.

The tooling for the battery cell cycle test is made of aluminum alloy 6061, so that the tooling has a long service life. In addition, through setting up the spacer, can prevent effectively that electric core 5 from receiving the extrusion, and set up as above on the extrusion portion of upper side cooling channel, can improve the radiating effect to electric core 5 to can improve the accuracy of electric core 5 cycle test experiment, and then can make this frock have better result of use.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frock is used in test of electricity core circulation which characterized in that: the battery pack comprises extrusion parts which are respectively arranged on two opposite sides of the battery cell (5), the extrusion parts on two sides are detachably connected together and can form a clamping structure for the battery cell (5), and a cooling part which can cool the battery cell (5) is arranged on the extrusion part on at least one side.

2. The tooling for cell cycle testing according to claim 1, wherein: the cooling part is a cooling channel configured on the extrusion part.

3. The tooling for cell cycle testing according to claim 2, wherein: the extrusion portion comprises a pressing plate (1) with a groove (101) and a base plate (6) clamped between the pressing plate (1) and the battery cell (5) and covering the groove (101), the cooling channel is formed by the covered groove (101), and the base plate (6) covers the battery cell (5).

4. The tooling for cell cycle testing according to claim 1, wherein: the pressing parts on both sides are connected together by a connecting piece.

5. The tooling for cell cycle testing according to claim 4, wherein: the connecting piece comprises a bolt pair arranged on the extrusion parts penetrating through two sides.

6. The tooling for cell cycle testing according to claim 5, wherein: the nuts (3) in the bolt pair are two adjacently arranged.

7. The tooling for cell cycle testing according to claim 5, wherein: an anti-rotation groove (1032) for embedding the head of the bolt (4) in the bolt pair is formed on the extrusion part on one side.

8. The tooling for cell cycle testing according to claim 4, wherein: the extrusion parts on two sides respectively comprise a main body (102) covering the battery core (5) and connecting blocks (103) arranged at two ends of the main body (102) in a protruding mode, and the connecting pieces are arranged on the connecting blocks (103).

9. The tooling for the cell cycle test of any one of claims 4 to 8, wherein: and a spacing piece for limiting the distance between the squeezing parts on the two sides is arranged between the squeezing parts on the two sides.

10. The tooling for cell cycle testing according to claim 9, wherein: the spacing piece is sleeved on the connecting piece.