CN215525873U - Clamp for testing battery cell - Google Patents
Clamp for testing battery cell Download PDFInfo
- Publication number
- CN215525873U CN215525873U CN202120645829.2U CN202120645829U CN215525873U CN 215525873 U CN215525873 U CN 215525873U CN 202120645829 U CN202120645829 U CN 202120645829U CN 215525873 U CN215525873 U CN 215525873U
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- Prior art keywords
- pressing
- clamp
- battery cell
- testing
- sub
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 59
- 238000003825 pressing Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of detection of a battery cell, and discloses a clamp for testing the battery cell, which comprises two sub-clamps, wherein the battery cell can be clamped between the two sub-clamps, and each sub-clamp comprises: a plurality of metal plates; the battery cell pressing device comprises a plurality of pressing parts, a plurality of connecting parts and a plurality of connecting parts, wherein each pressing part is connected with one metal plate, is configured to apply pressure to a battery cell and is also configured to detect acting force between the pressing part and the battery cell; a plurality of blotters, a plurality of blotters all can be in the coplanar, and every blotter all sets up in one side that a metal sheet back of the body executed the casting die, and the blotter can laminate with electric core. When the clamp for testing the battery cell is used for detecting the battery cell, the operation is simple, the mechanical properties of the battery cells in different areas can be accurately detected, the added buffer cushion can also avoid the damage of a metal plate to the battery cell, the detection accuracy is ensured, the clamp is suitable for the battery cells with different sizes, and the adaptability is strong.
Description
Technical Field
The utility model relates to the technical field of detection of battery cells, in particular to a clamp for testing a battery cell.
Background
At present, lithium ion batteries are widely applied to the fields of consumer electronics, new energy automobiles and energy storage, and along with the rapid development of application markets and the continuous improvement of product requirements of users, the energy and the volume of the lithium batteries are increasingly large, and the advantages of long batteries and batteries similar to blade shapes are gradually shown. However, as the volume and the cross-sectional area of the battery increase, the mechanical behavior of the battery in the charging and discharging process becomes more and more complex, and the interface health of the pole piece is also affected. Therefore, when detecting the battery cell, it is very important to select a suitable clamp for testing the battery cell.
The clamp for testing the battery cell in the prior art is usually a metal plate made of hard material, and the acting force of the metal plate on the battery cell cannot be locally adjusted according to the actual application scene of the battery cell, so that the mechanical property of the battery cell generated in the charging and discharging test process cannot be accurately detected by the clamp for testing the battery cell in the prior art.
SUMMERY OF THE UTILITY MODEL
Based on the above, the present invention provides a fixture for testing a battery cell, which can perform local adjustment according to an actual application scenario of the battery cell, so as to accurately detect mechanical properties generated by the battery cell during a charging and discharging test.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a fixture for testing a cell, comprising two sub-fixtures between which a cell can be clamped, each sub-fixture comprising: a plurality of metal plates; the pressing pieces are arranged in one-to-one correspondence with the metal plates, each pressing piece is connected with one metal plate, and the pressing pieces are configured to apply pressure to the battery cells and detect acting force between the pressing pieces and the battery cells; the metal plate pressing piece comprises a plurality of metal plates, wherein the metal plates are arranged in a one-to-one correspondence mode, the metal plates are arranged on the metal plates in a one-to-one correspondence mode, the metal plates can be arranged on the metal plates in the same plane, each metal plate is back to the side, away from the pressing piece, of the corresponding cushion, and the cushions can be attached to the battery cores.
As a preferable scheme of the fixture for testing the battery cell, each of the sub-fixtures further includes: positioning a plate; the pressing device comprises a positioning plate, a plurality of pressing rods, a pressing piece and a metal plate, wherein the positioning plate is arranged on the positioning plate, the pressing rods are arranged on the positioning plate in a penetrating mode, the metal plate is arranged on the other end of each pressing rod, and the pressing rods are arranged in one-to-one correspondence with the pressing pieces and the metal plate.
As a preferable scheme of the fixture for testing the battery cell, a connection position of each compression bar and the metal plate is located at the center of the metal plate.
As an optimal scheme of the clamp for testing the battery core, a plurality of guide holes arranged in rows and columns are formed in the positioning plate, and each pressing rod penetrates through one guide hole.
As a preferable scheme of the clamp for testing the battery cell, the pressing member includes a cylinder, and a movable end of the cylinder is connected with the pressing rod.
As a preferable scheme of the clamp for testing the battery cell, the pressing member further includes a pressure detection member, and the pressure detection member is configured to detect an acting force between the cushion pad and the battery cell corresponding to the pressure detection member.
As a preferable mode of the jig for testing the battery cell, the elastic modulus of the cushion pad at the edge of each sub-jig is larger than that of the cushion pad in the middle.
As a preferred scheme of the clamp for testing the battery core, the cushion pad is an aerogel pad, a silica gel pad or a rubber pad.
As a preferred scheme of the fixture for testing the battery cell, each metal plate is a rectangular plate.
As a preferred scheme of the fixture for testing the battery cell, the metal plate is a steel plate or an aluminum plate.
The utility model has the beneficial effects that: the clamp for testing the battery cell is simple to operate when the battery cell is detected, each sub-clamp comprises the pressing parts, the metal plates and the cushion pads, so that the acting force between the battery cells in different areas and the pressing parts in the charging and discharging processes of the battery cell can be accurately detected, the mechanical properties of the battery cells in different areas can be accurately detected, the cushion pads are additionally arranged, the damage of the metal plates to the battery cells can be avoided, the detection accuracy is ensured, in addition, the clamp for testing the battery cell is suitable for the battery cells in different sizes, and the adaptability is strong.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic view of a sub-fixture of a fixture for testing electrical cells provided in an embodiment of the present invention in one direction;
fig. 2 is a schematic view of a sub-fixture of the fixture for testing battery cells provided in the embodiment of the present invention in another direction.
In the figure:
1. a metal plate; 2. applying a pressing piece; 3. a cushion pad; 4. positioning a plate; 5. a pressure lever.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a clamp for testing a battery cell, as shown in fig. 1 and fig. 2, the clamp for testing the battery cell includes two sub-clamps, the battery cell can be clamped between the two sub-clamps, each sub-clamp includes nine metal plates 1, nine pressing members 2 and nine cushion pads 3, the nine pressing members 2 and the nine metal plates 1 are arranged in a one-to-one correspondence manner, each pressing member 2 is connected with one metal plate 1, the pressing members 2 are configured to apply pressure to the battery cell, the pressing members 2 are further configured to detect an acting force between the pressing members 2 and the battery cell, the nine cushion pads 3 and the nine metal plates 1 are arranged in a one-to-one correspondence manner, the nine cushion pads 3 can be located in the same plane, each cushion pad 3 is arranged on one side of one metal plate 1 departing from the pressing members 2, and the cushion pads 3 can be attached to the battery cell. In another embodiment of the present invention, the number of the metal plates 1, the pressing members 2, and the cushion pads 3 is not limited to nine in the embodiment, and may be other numbers, specifically, provided according to actual needs.
Specifically, as shown in fig. 1 and 2, the nine metal plates 1 of each sub-jig of the present embodiment are all the same in thickness, and the nine cushions 3 of each sub-jig are the same in thickness. Every metal sheet 1 is rectangular plate, and nine rectangular plate's length is all the same, and nine rectangular plate's width is all the same. In other embodiments, the shape, length and width of the metal plate 1 may also be different, and are specifically selected according to actual needs. The metal plate 1 of this embodiment is a steel plate or an aluminum plate, and the cushion pad 3 is an aerogel pad, a silica gel pad or a rubber pad. In other embodiments, the metal plate 1 may also be made of a metal with a hard material, and the cushion pad 3 may also be made of a material with a soft material, which is specifically selected according to actual needs.
Because every sub-anchor clamps of this embodiment all include nine pressure parts 2, nine metal sheets 1 and nine blotters 3, when pressing from both sides electric core between two sub-anchor clamps, if electric core and one of them a certain, two or a plurality of blotters 3 of a sub-anchor clamps are contactless, do not operate pressure parts 2 that correspond with these blotters 3 this moment for the anchor clamps of the test electric core of this embodiment are applicable to the electric core of different length and width.
The anchor clamps of test electric core that this embodiment provided are when detecting electric core, and easy operation, because every sub-anchor clamps all include nine casting die 2, nine metal sheet 1 and nine blotter 3, can detect the electric core accurately at the electric core of charge-discharge in-process different regions and casting die 2 between the effort, thereby detect out the mechanical properties of the electric core of different regions accurately, the blotter 3 of addding can also avoid the damage of metal sheet 1 to electric core, the accuracy of detection has been guaranteed, furthermore, the anchor clamps of the test electric core that this embodiment provided are applicable to not unidimensional electric core, the suitability is strong.
Specifically, as shown in fig. 1 and 2, each sub-clamp further includes a positioning plate 4 and nine pressing rods 5, each pressing rod 5 is disposed through the positioning plate 4 and can move in the length direction of the positioning plate 4, one end of each pressing rod 5 is provided with one pressing member 2, the other end of each pressing rod 5 is provided with one metal plate 1, and the nine pressing rods 5 are respectively disposed in one-to-one correspondence with the nine pressing members 2 and the nine metal plates 1. Wherein, be equipped with nine guiding holes that are the triplex row three rows of arranging on locating plate 4, every depression bar 5 all runs through a guiding hole setting.
Further, the connection position of each pressing rod 5 and the metal plate 1 of the present embodiment is located at the center of the metal plate 1, so as to increase the uniformity of the acting force of the pressing member 2 between the pressing rod 5 and the metal plate 1 and the battery cell.
The casting die 2 of this embodiment includes cylinder and pressure measurement spare, and the expansion end of cylinder links to each other with depression bar 5, and pressure measurement spare is used for detecting the effort between 3 and the electric core of blotter that correspond with it. Specifically, the pressure detection piece of this embodiment sets up in the cylinder and can detect the pressure of the interior gaseous of cylinder, calculates the effort that the expansion end of cylinder loops through between depression bar 5, metal sheet 1 and blotter 3 and the electricity core through the pressure that detects.
The elastic modulus of the cushion 3 of the edge of each sub-clip of the present embodiment is larger than that of the cushion 3 in the middle. Specifically, the nine cushions 3 of the present embodiment are A, B, C, D, E, F, G, H and I shown in fig. 1, wherein A, B, C, D, F, G, H and I are both cushions 3 with a larger elastic modulus, the elastic moduli of these cushions 3 may be different, and E is a cushion 3 with a smaller elastic modulus. Because electric core is at the course of the work, the deformation volume at the middle part of electric core is great, and this regional electric core and E contact, and E is the little blotter 3 of elastic modulus for E helps electric core circulation process breathing type inflation and shrink, helps prolonging the life of electric core.
When detecting, electric core presss from both sides between two sub-anchor clamps, and the electric core charges and discharges incessantly, and every casting die 2 exerts the effort to the electric core in different regions, and the effort between pressure measurement spare real-time detection electric core and the sub-anchor clamps is through the effort of adjustment casting die 2 to electric core for the effort between the electric core in different regions and the sub-anchor clamps tends to unanimously, guarantees that electric core presss from both sides the job scene between two sub-anchor clamps unanimously with actual job scene, has improved the accuracy that detects.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention 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, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a clamp for testing electric core, its characterized in that includes two sub-anchor clamps, electric core can centre gripping two between the sub-anchor clamps, every sub-anchor clamps all include:
a plurality of metal plates (1);
the pressing parts (2) are arranged in one-to-one correspondence with the metal plates (1), each pressing part (2) is connected with one metal plate (1), and the pressing parts (2) are configured to apply pressure to the battery cell and detect acting force between the pressing parts (2) and the battery cell;
a plurality of blotter (3), with a plurality of metal sheet (1) one-to-one sets up, and is a plurality of blotter (3) homoenergetic is in the coplanar, every blotter (3) all set up in one metal sheet (1) deviates from one side of casting die (2), blotter (3) can with the laminating of electricity core.
2. The clamp for testing cells of claim 1, wherein each of the sub-clamps further comprises:
a positioning plate (4);
the pressing device comprises a plurality of pressing rods (5), each pressing rod (5) penetrates through the positioning plate (4) and can move along the length direction of the positioning plate (4), one pressing piece (2) is arranged at one end of each pressing rod (5), one metal plate (1) is arranged at the other end of each pressing rod (5), and the plurality of pressing rods (5) are respectively arranged in one-to-one correspondence with the plurality of pressing pieces (2) and the plurality of metal plates (1).
3. The clamp for testing battery cells according to claim 2, wherein the connection position of each compression bar (5) to the metal plate (1) is located at the center of the metal plate (1).
4. The fixture for testing the electrical cores according to claim 2, wherein the positioning plate (4) is provided with a plurality of guiding holes arranged in rows and columns, and each of the pressing rods (5) penetrates through one of the guiding holes.
5. The clamp for testing cells according to claim 2, characterized in that the pressing member (2) comprises a cylinder, the movable end of which is connected to the pressure bar (5).
6. The clamp for testing cells according to claim 5, characterized in that the pressing member (2) further comprises a pressure detection member for detecting the force between the cushion pad (3) and the cell corresponding thereto.
7. The clamp of test cells according to claim 1, characterized in that the modulus of elasticity of the cushion (3) at the edge of each sub-clamp is greater than the modulus of elasticity of the cushion (3) in the middle.
8. The fixture for testing electrical cores of claim 1, wherein the cushion pad (3) is an aerogel pad, a silica gel pad, or a rubber pad.
9. The clamp for testing cells according to claim 1, characterized in that each of the metal plates (1) is a rectangular plate.
10. The clamp for testing cells according to claim 1, characterized in that the metal plate (1) is a steel or aluminum plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645829.2U CN215525873U (en) | 2021-03-30 | 2021-03-30 | Clamp for testing battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120645829.2U CN215525873U (en) | 2021-03-30 | 2021-03-30 | Clamp for testing battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215525873U true CN215525873U (en) | 2022-01-14 |
Family
ID=79801132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120645829.2U Active CN215525873U (en) | 2021-03-30 | 2021-03-30 | Clamp for testing battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215525873U (en) |
-
2021
- 2021-03-30 CN CN202120645829.2U patent/CN215525873U/en active Active
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