CN219935942U

CN219935942U - Cell detection positioning device

Info

Publication number: CN219935942U
Application number: CN202321646568.1U
Authority: CN
Inventors: 李峥; 冯玉川; 沈财; 李清晖; 何泓材
Original assignee: Suzhou Qingtao New Energy S&T Co Ltd
Current assignee: Suzhou Qingtao New Energy S&T Co Ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-10-31
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to the technical field of batteries, in particular to a battery cell detection positioning device. The cell detection positioning device comprises a mounting seat, two detection ends and a plurality of pressing assemblies. The battery cell is placed on the test platform of mount pad, and two detection ends slide and set up on the mount pad, and two detection ends can be close to or keep away from the battery cell motion to make detection end can with utmost point ear butt, in order to carry out voltage test. The plurality of support and press the subassembly setting on the mount pad, all be provided with along the both sides of first direction and support and press the subassembly, support and press the subassembly to include first driving piece and support the casting die, support the casting die and connect in the output of first driving piece, first driving piece can drive support the casting die along the reciprocating motion of first direction to make support the casting die and can support the encapsulation limit of plastic-aluminum membrane and press on the electric core, effectively prevented because detection end and encapsulation limit bump the position emergence skew that leads to the electric core, and then guaranteed the effective going on of voltage test.

Description

Cell detection positioning device

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery cell detection positioning device.

Background

In the production process of the battery cell, a series of operations such as voltage detection, thickness measurement, sorting and the like are performed on the battery cell to separate qualified products and defective products.

Because of the existence of the packaging edge of the aluminum plastic film and the self structure of the detection end of the existing detection device, the detection end can interfere with the packaging edge of the battery cell to collide, so that the position of the battery cell is deviated, and finally detection failure is caused. Furthermore, since the manipulator is generally used for transferring the battery cell on the production line at present, the position offset on the previous station can affect the position of the battery cell in the next procedure, and the battery cell may collide with a device in the next station, so that the battery cell is damaged. The existing solution method only can be used for correcting the position of the battery cell manually and then testing, so that the efficiency is low and the danger is easy to be caused to the human body.

Therefore, a cell detecting and positioning device is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a battery cell detection positioning device, which solves the problem that the detection end of the existing detection device collides with the packaging edge of a battery cell to cause the position of the battery cell to deviate, and finally the detection fails.

In order to achieve the above object, the following technical scheme is provided:

cell detects positioner, and the both ends of cell along first direction are connected with the utmost point ear, and the outside plastic envelope of cell has the plastic-aluminum membrane, and this cell detects positioner includes:

the battery cell is placed on a test platform of the mounting seat;

the two detection ends are arranged on the mounting seat in a sliding manner;

the pressing assembly comprises a first driving piece and a pressing piece, the pressing piece is connected to the output end of the first driving piece, the first driving piece can drive the pressing piece to reciprocate, and the pressing assembly is arranged on two sides of the battery cell in the first direction.

In one embodiment, the first driving member can drive the pressing member to reciprocate along a first direction, so that the pressing member can press the packaging edge of the aluminum plastic film against the battery cell.

Preferably, at least two pressing assemblies are distributed at one side of the mounting seat at intervals.

Preferably, the spacing between adjacent two of the pressure members is greater than 10mm.

In one embodiment, the number of the pressing components on one side of the mounting seat is one, and the pressing component is provided with an avoidance groove.

Preferably, the length of the avoidance groove in the first direction is equal to the length of the pressing member in the first direction, and the avoidance groove penetrates through at least one side top surface of the pressing member in the third direction.

Preferably, the cell detection positioning device further includes a fixing mechanism, and the fixing mechanism includes:

the first fixed block is arranged on the mounting seat;

the second fixed block is arranged opposite to the first fixed block;

the output end of the second driving piece is connected with the second fixed block, and the second driving piece can drive the second fixed block to do reciprocating motion.

Preferably, the height of the top surface of the first fixing block is smaller than the height of the packaging long side of the aluminum plastic film, so that the first fixing block is abutted with a part of the battery cells positioned below the packaging long side.

Preferably, the lengths of the first fixed block and the second fixed block are both greater than half the length of the battery cell.

Preferably, the pressing member is provided with a buffer member for abutting against the battery cell.

Preferably, the mounting base comprises two mounting pieces arranged at intervals, each mounting piece is connected with a detection end, and the detection ends slide on the mounting pieces along the third direction.

Compared with the prior art, the utility model has the beneficial effects that:

according to the battery cell detection positioning device, the plurality of pressing assemblies are arranged at the test end parts at the two sides of the first direction, and the pressing assemblies can press the packaging edges near the electrode lugs on the battery cells, so that the position of the battery cells is prevented from being deviated due to collision between the detection end and the packaging edges, and further effective performance of voltage test is ensured; the accurate position of the battery cell is ensured, and the effective proceeding of the subsequent detection link of the battery cell is also ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a cell detection positioning device according to a first embodiment;

fig. 2 is a schematic structural diagram of a battery cell according to the present utility model;

fig. 3 is a schematic structural diagram of a cell detection positioning device according to a second embodiment.

Reference numerals:

1. a mounting base; 11. a test platform; 12. a mounting member;

2. a detection end;

3. a pressing component; 31. a first driving member; 32. a pressing member;

4. a battery cell; 41. packaging short sides; 42. packaging long sides;

5. a tab;

6. a fixing mechanism; 61. a first fixed block; 62. a second fixed block; 63. and a second driving member.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached 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 utility model, the terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular 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.

It should be noted that, in the present utility model, the first direction refers to the length extending direction of the battery cell, the second direction refers to the width extending direction of the battery cell, and the third direction refers to the thickness extending direction of the battery cell and is also the vertical direction. The first direction, the second direction, and the third direction are perpendicular to each other.

Embodiment one:

as shown in fig. 1-2, this embodiment provides a battery cell detection positioning device for testing voltage and internal resistance of a battery cell 4, two ends of the length direction of the battery cell 4 are connected with lugs 5, an aluminum plastic film is molded outside the battery cell 4, and the battery cell detection positioning device comprises a mounting seat 1, two detection ends 2, a plurality of pressing assemblies 3 and a fixing mechanism 6. The battery cell 4 is placed on the test platform 11 of mount pad 1, and two detection ends 2 slide and set up on mount pad 1, and two detection ends 2 can be close to or keep away from the movement of battery cell 4 to make detection end 2 can with utmost point ear 5 butt, in order to carry out the voltage test. The fixing mechanism 6 is used for fixing the battery cell 4, the plurality of pressing assemblies 3 are arranged on the mounting seat 1, the pressing assemblies 3 comprise a first driving piece 31 and a pressing piece 32, the pressing piece 32 is connected to the output end of the first driving piece 31, the first driving piece 31 can drive the pressing piece 32 to reciprocate along a first direction, the battery cell 4 is provided with the pressing assemblies 3 on two sides of the first direction, and the pressing piece 32 can press the package short side 41 of the aluminum plastic film on the battery cell 4.

In the production process of the battery cell 4, the battery cell 4 is placed on the test platform 11 of the mounting seat 1, and the test platform 11 drives the battery cell 4 to move to different detection mechanisms on a production line so as to complete a series of tests on the battery cell 4, such as voltage detection, thickness detection, sorting and other operations. The battery cell detection positioning device of this embodiment is used for carrying out voltage and internal resistance test on the battery cell 4, when the detection end 2 moves and abuts against the tab 5, because of the existence of the encapsulation short side 41 of the plastic-aluminum film and the self structure of the detection end 2, the detection end 2 may interfere with and collide with the encapsulation short side 41, so that the position of the battery cell 4 is deviated, and finally the detection end 2 cannot accurately abut against the tab 5 to fail the test. According to the battery cell detection positioning device, the plurality of pressing assemblies 3 are arranged at the test end part of the battery cell 4, and the pressing assemblies 3 press the packaging short sides 41 near the electrode lugs 5 on the battery cell 4, so that the position of the battery cell 4 is prevented from being deviated due to collision between the detection end 2 and the packaging short sides 41, and the effective performance of voltage test is further ensured; the accurate position of the battery cell 4 is ensured, and the effective proceeding of the subsequent detection link of the battery cell 4 is also ensured.

Further, two abutting components 3 are arranged on two sides of the mounting seat 1 along the second direction at intervals, and the tab 5 is located between the two abutting components 3. Because the two sides of the tab 5 are provided with the convex packaging short sides 41, the scheme presses the packaging short sides 41 on the two sides of the tab 5 on the battery cell 4 through the two pressing assemblies 3, and the position of the battery cell 4 is prevented from being offset due to collision between the detection end 2 and the packaging short sides 41.

Further, there may be a certain error in the position of the tab 5 on the test platform 11, so as to prevent the position of the cell 4 from being shifted or the tab 5 from being damaged due to the collision between the pressing member 32 and the tab 5, and the interval between two adjacent pressing members 32 is greater than 10mm.

Further, the battery cell detection positioning device of the present embodiment further includes a fixing mechanism 6, where the fixing mechanism 6 includes a first fixing block 61, a second fixing block 62, and a second driving member 63, the first fixing block 61 is disposed on the mounting base 1, and the extending direction of the length of the first fixing block is the same as the first direction, the second fixing block 62 is disposed opposite to the first fixing block 61, and the battery cell 4 is located between the second fixing block 62 and the first fixing block 61. The output end of the second driving member 63 is connected to the second fixing block 62, and the second driving member 63 can drive the second fixing block 62 to reciprocate along the second direction, so that the second fixing block 62 can abut the battery cell 4 against the first fixing block 61. Before detecting the battery cell 4, the fixing mechanism 6 is used for limiting and fixing the battery cell 4 in the width direction, and then the pressing component 3 presses the package long edges 42 on two sides of the tab 5 on the battery cell 4, so that the fixing mechanism 6 further ensures that the battery cell 4 cannot deviate.

In some embodiments, the first fixing block 61 is connected to the output end of the third driving member, and the third driving member drives the first fixing block 61 to reciprocate along the second direction, so as to realize the opposite movement of the first fixing block 61 and the second fixing block 62, so as to fix the battery cell 4.

Further, the height of the top surface of the first fixing block 61 is smaller than the height of the package long side 42 of the aluminum plastic film, so that the first fixing block 61 is abutted with a part of the battery cells 4 located below the package long side 42. Firstly, limiting and fixing are carried out on the second direction through the fixing mechanism 6, then the propping component 3 is propped against the packaging long sides 42 on two sides of the tab 5 on the battery cell 4, if the first fixing block 61 and the second fixing block 62 are propped against the packaging long sides 42 of the battery cell 4, the position of the battery cell 4 on the mounting seat 1 is not accurate enough due to the possible deformation of the packaging long sides 42, so that the tab 5 has a larger error with the originally accurate testing position, and the detection end 2 can not be propped against the tab 5. According to the scheme, the first fixing block 61 is abutted with part of the battery cells 4 below the packaging long side 42, so that the influence of the packaging long side 42 on the positions of the battery cells 4 is reduced, the position of the battery cells 4 on the mounting seat 1 is ensured to be more accurate, the detection end 2 is accurately abutted with the electrode lugs 5, and the abutting piece 32 cannot collide with the electrode lugs 5.

Further, in order to make the fixing effect of the fixing mechanism 6 on the battery cell 4 better, the lengths of the first fixing block 61 and the second fixing block 62 are both greater than half the length of the battery cell 4.

Further, the pressing member 32 is provided with a buffer member for abutting against the battery cell 4. This scheme has effectively prevented to support and has pressed subassembly 3 when pressing the encapsulation minor face 41 of plastic-aluminum membrane on electric core 4, supports and presses subassembly 3 with plastic-aluminum membrane surface wear, and then has guaranteed the performance of electric core 4.

As the preference, the buffer part is an EPS foam board, and the EPS foam board has the advantages of good shockproof buffer performance, high compressive strength, simple modeling, low price and the like.

In other embodiments, the material of the buffer layer may be rubber, silica gel, polyurethane, etc., and the technical solution of the present utility model does not limit the material of the buffer layer.

Further, the mounting seat 1 comprises two mounting pieces 12 arranged at intervals, each mounting piece 12 is connected with a detection end 2, and the detection ends 2 slide on the mounting pieces 12 along a third direction. The stability of detecting end 2 motion has been guaranteed to this scheme, and detecting end 2 moves in the third direction, has further prevented detecting end 2 and encapsulation minor face 41 from taking place the collision and having led to the position emergence skew of electric core 4.

Specifically, be provided with the guide rail that extends along the third direction on the mounting 12, the one end of detection end 2 is connected with the slider, is provided with the spout on the slider, and the spout and the guide rail sliding fit of slider, and then realize the sliding fit of detection end 2 and mounting 12. The sliding fit of the sliding block and the guide rail ensures that the detection end 2 slides on the mounting piece 12 more stably.

Preferably, the first driving member 31 and the second driving member 63 are both cylinders, and the cylinders have the advantages of simple structure, easy installation and maintenance, low requirement for users, and the like.

Embodiment two:

as shown in fig. 3, the second embodiment of the present utility model provides a cell detecting and positioning device, which is different from the first embodiment in the structure of the pressing component 3.

In the second embodiment, two pressing assemblies 3 are respectively disposed on two sides of the mounting base 1 along the second direction, and the length extension direction of the pressing member 32 is the same as the second direction. The pressing piece 32 is provided with an avoidance groove, and when the pressing piece 32 is in contact with the battery cell 4, the tab 5 is positioned in the avoidance groove. Through this scheme, be connected with each end of utmost point ear 5 at electric core 4, only need through a pressure subassembly 3, can realize that pressure piece 32 can press the encapsulation minor face 41 of utmost point ear 5 both sides on electric core 4. The number of the pressing assemblies 3 is reduced, so that the pressing operation of the pressing assemblies 3 on the package short sides 41 is more synchronous, and the pressing effect of the package short sides 41 is better; the number of the pressing assemblies 3 is reduced, so that the cell detection positioning device is simpler in structure and more convenient to assemble.

Further, the length of the avoidance groove in the first direction is equal to the length of the pressing member 32 in the first direction, and the avoidance groove penetrates through at least one side top surface of the pressing member 32 in the third direction. It will be appreciated that in this embodiment, the middle of the abutment 32 is treated to remove part of the structure and form a channel-like structure, so that the abutment 32 forms a "concave" structure.

The provision of the escape groove of the pressing member 32 prevents the detection end 2 from interfering with the pressing member 32 when moving downward, because the detection end 2 slides in the third direction on the mounting member 12.

Note that in the description of this specification, a description referring to terms "some embodiments", "other embodiments", and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. Electric core detects positioner, its characterized in that includes:

the battery cell (4) is placed on a test platform (11) of the mounting seat (1);

the two detection ends (2) are arranged on the mounting seat (1) in a sliding manner;

the plurality of pressing components (3) are arranged on the mounting seat (1), the pressing components (3) comprise a first driving piece (31) and pressing pieces (32), the pressing pieces (32) are connected to the output end of the first driving piece (31), the first driving piece (31) can drive the pressing pieces (32) to reciprocate, and the electric cores (4) are arranged on two sides of the first direction respectively.

2. The cell detection positioning device according to claim 1, wherein at least two of the pressing assemblies (3) are distributed at intervals on one side of the mounting base (1).

3. The cell detection positioning device according to claim 2, wherein the distance between two adjacent pressing members (32) is greater than 10mm.

4. The cell detection positioning device according to claim 1, wherein the number of the pressing assemblies (3) on one side of the mounting seat (1) is one, and the pressing member (32) is provided with an avoidance groove.

5. The cell detection positioning device according to claim 4, wherein the length of the avoidance groove in the first direction is equal to the length of the pressing member (32) in the first direction, and the avoidance groove penetrates through at least one side top surface of the pressing member (32) in the third direction.

6. The cell detection positioning device according to any one of claims 1-5, further comprising a fixing mechanism (6), the fixing mechanism (6) comprising:

a first fixed block (61) provided on the mounting base (1);

a second fixed block (62) disposed opposite to the first fixed block (61);

the output end of the second driving piece (63) is connected with the second fixed block (62), and the second driving piece (63) can drive the second fixed block (62) to do reciprocating motion.

7. The cell detection positioning device according to claim 6, wherein the height of the top surface of the first fixing block (61) is smaller than the height of the package long side (42) of the aluminum plastic film of the cell (4), so that the first fixing block (61) is abutted with a part of the cell (4) located below the package long side (42).

8. The cell detection positioning device according to claim 6, wherein the length of the first fixing block (61) and the second fixing block (62) is greater than half the length of the cell (4).

9. The cell detection positioning device according to any one of claims 1-5, characterized in that a buffer is provided on the pressing member (32) for abutting against the cell (4).

10. The cell detection positioning device according to any one of claims 1-5, wherein the mounting base (1) comprises two mounting members (12) arranged at intervals, each mounting member (12) is connected with the detection end (2), and the detection end (2) slides on the mounting member (12) along a third direction.