Sodium ion soft package battery testing device

Abstract

The utility model belongs to the technical field of battery performance testing, and discloses a sodium ion soft package battery testing device. The sodium ion soft package battery testing device comprises a bearing plate, a testing clamp and a fastening bolt, the bearing plate is used for bearing a battery, at least one assembly hole group is formed in the bearing plate, and each assembly hole group comprises a positioning groove and a bolt hole; the test fixture is electrically connected with the battery, a positioning bump is arranged on one side, facing the bearing plate, of the test fixture, and the positioning bump is clamped in the positioning groove in a limiting manner; the test fixture is provided with a connecting hole, and the fastening bolt passes through the connecting hole and is screwed with the bolt hole. The sodion soft package battery testing device can ensure the stability of the battery and the testing clamps in the testing process, and meanwhile, as the positions of the testing clamps are relatively fixed, connecting wires on the testing clamps are also tidily fixed, so that the testing clamps and the connecting wires among the testing clamps are prevented from interfering with each other, and the testing accuracy is improved. And the later disassembly and arrangement are greatly facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery performance testing, in particular to a sodium ion soft-pack battery testing device. Background Art

[0002] Sodium-ion batteries are a type of secondary battery that has gained popularity in recent years. Their primary operating principle is similar to that of lithium-ion batteries, where sodium ions migrate between the positive and negative electrodes to discharge energy. Compared to common lithium-ion batteries, sodium-ion batteries offer advantages such as strong cold resistance, excellent power performance, long life, and improved safety. As a result, they are increasingly being used in energy storage, low-speed electric vehicles, and other fields.

[0003] Before use, sodium-ion soft-pack batteries need to be placed in a test chamber for charge and discharge testing to ensure they meet safety and reliability requirements. During testing, staff connect the battery's positive and negative terminals to a test cabinet outside the test chamber using a test fixture and test cables, thereby achieving a conductive connection between the battery and the test cabinet. Due to the large number of batteries placed in the test chamber, the test fixture and test cables are prone to interference and entanglement, resulting in a messy layout and significant inconvenience during subsequent disassembly. Utility Model Content

[0004] The purpose of the utility model is to provide a sodium ion soft-pack battery testing device, which can ensure the stability of the test fixture during the test process to facilitate later disassembly and arrangement.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a sodium ion soft pack battery testing device, comprising:

[0007] A carrier plate, the carrier plate is used to carry batteries, and the carrier plate is provided with at least one assembly hole group, each of the assembly hole groups includes a positioning slot and a bolt hole;

[0008] A test fixture, the test fixture being used to be electrically connected to the battery, the test fixture being provided with a positioning protrusion on a side facing the carrier plate, the positioning protrusion being limitedly clamped in the positioning groove;

[0009] A fastening bolt is provided on the test fixture, and the fastening bolt passes through the connecting hole and is screwed into the bolt hole.

[0010] Preferably, ventilation holes are provided on the supporting plate.

[0011] Preferably, each of the assembly hole groups includes at least two positioning grooves.

[0012] Preferably, each assembly hole group includes two positioning grooves, and the two positioning grooves are symmetrically arranged on both sides of a center line, and the center line passes through the center of the bolt hole along the first direction.

[0013] Preferably, the assembly hole groups are arranged in a plurality of columns along the first direction, and each column of the assembly hole groups is arranged in a plurality of rows along the second direction.

[0014] The distances between the assembly hole groups in two adjacent columns are the same, and the distances between the assembly hole groups in two adjacent rows are the same.

[0015] Preferably, the longitudinal section of the positioning groove is L-shaped.

[0016] Preferably, the sodium-ion soft-pack battery testing device further includes a test box, the carrier plate is placed inside the test box, and the test box is capable of changing the internal temperature.

[0017] Preferably, the inner wall of the test box is provided with a plurality of guide rail grooves along the height direction, the guide rail grooves extend along the horizontal direction, and the carrying plate can slide along the guide rail grooves.

[0018] Preferably, the sodium ion soft-pack battery testing device further includes a layer plate, the supporting plate is detachably connected to the layer plate, a handle is provided on the layer plate, and the layer plate is movably clamped in the guide rail groove.

[0019] Preferably, the supporting plate is made of insulating material.

[0020] The beneficial effects of the present invention are:

[0021] The sodium ion soft pack battery testing device provided by the utility model includes a carrying plate, a test fixture and a fastening bolt. The carrying plate is provided with an assembly hole group. Since the assembly hole group includes a positioning groove, and the test fixture is provided with a positioning protrusion on the side facing the carrying plate, the positioning protrusion is clamped in the positioning groove, that is, the positioning groove plays a positioning role for the positioning protrusion. When the battery charge and discharge test is performed, the test fixture can maintain a relatively stable state; since the fastening bolt passes through the connecting hole and is screwed into the bolt hole, the test fixture is fixedly connected to the carrying plate by the fastening bolt, thereby preventing multiple test fixtures from being affected by external forces. Interference occurs; the fastening bolts and the positioning slots cooperate with each other. Before the test fixture is clamped on the battery, the position is first initially fixed by the engagement of the positioning protrusions with the positioning slots. After the test fixture is electrically connected to the battery, the fastening bolts are used to fix the test fixture and the carrier plate to ensure the stability of the test fixture during the test. At the same time, since the position of the test fixture is relatively fixed, the connecting wires on each test fixture are also neatly fixed, thereby preventing the test fixture and the connecting wires between each test fixture from interfering with each other, which greatly facilitates the subsequent disassembly and sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of a load-bearing plate provided in a specific embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0024] Figure 3 It is a side view of a side-view clamp provided in a specific embodiment of the present utility model.

[0025] In the picture:

[0026] 1-carrying plate; 11-assembly hole group; 111-positioning slot; 112-bolt hole; 12-ventilation hole;

[0027] 2-test fixture; 21-positioning bump;

[0028] 3-Tighten the bolts. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0030] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0033] The utility model provides a sodium ion soft pack battery testing device, such as Figures 1 to 3 As shown, it includes a supporting plate 1, a test fixture 2 and a fastening bolt 3. The supporting plate 1 is used to support the battery. The supporting plate 1 is provided with at least one assembly hole group 11. Each assembly hole group 11 includes a positioning groove 111 and a bolt hole 112. The test fixture 2 is used to be electrically connected to the battery. The test fixture 2 is provided with a positioning protrusion 21 on the side facing the supporting plate 1. The positioning protrusion 21 is limited and clamped in the positioning groove 111. The test fixture 2 is provided with a connecting hole. The fastening bolt 3 passes through the connecting hole and is screwed into the bolt hole 112.

[0034] In this embodiment, since the assembly hole group 11 includes a positioning groove 111, and the test fixture 2 is provided with a positioning protrusion 21 on the side facing the carrier plate 1, the positioning protrusion 21 is clamped in the positioning groove 111, that is, the positioning groove 111 plays a positioning role for the positioning protrusion 21, and the test fixture 2 can maintain a relatively stable state when the battery charge and discharge test is performed; since the fastening bolt 3 passes through the connecting hole and is screwed into the bolt hole 112, the test fixture 2 is fixedly connected to the carrier plate 1 by the fastening bolt 3, avoiding interference between multiple test fixtures 2 due to external forces; the fastening bolt 3 and the positioning protrusion 21 are fixed to the carrier plate 1. The positioning slots 111 cooperate with each other. Before clamping the battery, the test fixture 2 is first initially fixed in position by engaging the positioning protrusion 21 with the positioning slot 111. After the test fixture 2 is electrically connected to the battery, the fastening bolts 3 are used to fix the test fixture 2 and the carrier plate 1 to ensure the stability of the test fixture 2 during the test process. At the same time, since the position of the test fixture 2 is relatively fixed, the connecting wires on each test fixture 2 are also neatly fixed, thereby preventing the test fixture 2 and the connecting wires on each test fixture 2 from interfering with each other, which greatly facilitates the subsequent disassembly and arrangement.

[0035] Specifically, test fixture 2 is a battery clamp commonly used in the field. It has two clamps, one for holding the positive electrode and the other for holding the negative electrode of a sodium-ion soft-pack battery. During testing, the carrier plate 1 is placed in a sealed test chamber, and test fixture 2 is electrically connected to a test cabinet outside the chamber via a connecting wire.

[0036] like Figure 1As shown, the carrier plate 1 is provided with ventilation holes 12. These holes promote airflow, ensuring consistent temperatures on the carrier plate 1 and throughout the test chamber. Heat generated by the battery during testing can be quickly dissipated through the holes, improving the heat dissipation performance of the sodium-ion soft-pack battery testing device. The holes 12 can be circular or rectangular, as long as they allow airflow through them. The shape of the holes 12 is not limited.

[0037] Specifically, each assembly hole group 11 includes at least two positioning slots 111 , and the carrier plate 1 is positioned by the at least two positioning slots 111 , thereby improving the positioning effect and making the connection between the test fixture 2 and the carrier plate 1 more stable.

[0038] In this embodiment, each assembly hole group 11 includes two positioning slots 111, and the two positioning slots 111 are symmetrically arranged on both sides of the center line, and the center line passes through the center of the bolt hole 112 along the first direction. Since the two positioning slots 111 are symmetrically arranged on both sides of the center line, the test fixture 2 is more stable under force and is less likely to shake or rotate. Specifically, the carrier plate 1 is a rectangular plate with its length direction being the first direction, and two positioning protrusions 21 are also provided corresponding to the positioning slots 111; before conducting a test, the staff first inserts the two positioning protrusions 21 into the two positioning slots 111 respectively, and then clamps the two clamps of the test fixture 2 on the positive and negative electrodes of the battery respectively. After that, the staff uses the fastening bolts 3 to securely connect the test fixture 2 to the carrier plate 1, thereby completing the fixing of the test fixture 2 before the test.

[0039] like Figure 1 As shown, the assembly hole groups 11 are arranged in multiple columns along the first direction, and each column of assembly hole groups 11 is arranged in multiple rows along the second direction; the distance between two adjacent columns of assembly hole groups 11 is the same, and the distance between two adjacent rows of assembly hole groups 11 is the same; specifically, the carrier plate 1 is a rectangular plate, and its length direction and width direction are respectively the first direction and the second direction. The assembly hole groups 11 are arranged in multiple rows and columns on the carrier plate 1, and the distance between the assembly hole groups 11 in the same row is the same, and the distance between the assembly hole groups 11 in the same column is the same, thereby forming a uniform arrangement on the carrier plate 1, preventing the carrier plate 1 from being damaged due to excessive load, and at the same time preventing local overheating caused by battery aggregation on the carrier plate 1.

[0040] The specific structure of the positioning groove 111 can be set according to actual needs, as long as it can limit the positioning protrusion 21; for example, Figure 3As shown, the positioning protrusion 21 consists of a first protrusion and a second protrusion, the first protrusion is fixedly connected to the test fixture 2, the second protrusion is fixedly connected to the first protrusion, and the second protrusion protrudes from the first protrusion along the first direction, forming an L-shaped longitudinal section; matching this, the longitudinal section of the positioning groove 111 is L-shaped; when fixing the test fixture 2, the staff first inserts the positioning protrusion 21 into the positioning groove 111 in a direction inclined to the supporting plate 1, and then rotates the test fixture 2 so that the positioning protrusion 21 is completely engaged with the positioning groove 111; since the longitudinal section of the positioning groove 111 is L-shaped, the positioning groove 111 can limit the positioning protrusion 21 in the horizontal and vertical directions, further improving the connection stability between the test fixture 2 and the supporting plate 1.

[0041] Furthermore, the sodium-ion soft-pack battery testing device also includes a test box, and the carrier plate 1 is placed inside the test box, and the test box can change the internal temperature; specifically, the test box is a battery testing device commonly used in the field. The test box is a sealed box structure that can provide different temperature environments for the batteries placed therein to detect the performance of the batteries at different temperatures.

[0042] Specifically, the inner wall of the test box is provided with a plurality of guide rail grooves along the height direction, and the guide rail grooves extend in the horizontal direction. The supporting plate 1 can slide along the guide rail grooves. Since the supporting plate 1 can slide along the guide rail grooves, the staff can move the supporting plate 1 to a position close to the outlet of the test box, thereby facilitating the installation of the test battery and the test fixture 2, and also facilitating the observation of the installation effect.

[0043] In order to prevent the carrier plate 1 from being worn when sliding along the guide rail groove, the sodium-ion soft-pack battery testing device also includes a layer plate, to which the carrier plate 1 is detachably connected, and a handle is provided on the layer plate, and the layer plate is movably clamped in the guide rail groove. Specifically, the layer plate is made of metal, and the carrier plate 1 is connected to the layer plate by common connection devices such as bolts or cable ties. Both sides of the layer plate are clamped in the guide rail groove, and the layer plate can slide along the guide rail groove. During this process, the carrier plate 1 does not contact the inner wall of the test chamber; since the layer plate is also provided with a handle, the staff can move the carrier plate 1 by pushing and pulling the handle.

[0044] The carrier plate 1 is made of insulating materials such as bakelite or insulating glass to prevent the positive and negative electrodes of the battery from accidentally touching each other and causing a short circuit during the test.

[0045] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Sodium ion soft pack battery testing device, characterized in that, include: A carrier plate (1), the carrier plate (1) being used to carry batteries, the carrier plate (1) being provided with at least one assembly hole group (11), each assembly hole group (11) comprising a positioning groove (111) and a bolt hole (112); A test fixture (2), the test fixture (2) being used for being electrically connected to the battery, a positioning protrusion (21) being provided on a side of the test fixture (2) facing the carrier plate (1), the positioning protrusion (21) being limitedly clamped in the positioning groove (111); A fastening bolt (3) is provided on the test fixture (2), and the fastening bolt (3) passes through the connecting hole and is screwed into the bolt hole (112).

2. The sodium ion soft pack battery testing device according to claim 1, characterized in that: The supporting plate (1) is provided with a ventilation hole (12).

3. The sodium ion soft pack battery testing device according to claim 1, characterized in that: Each assembly hole group (11) comprises at least two positioning slots (111).

4. The sodium ion soft pack battery testing device according to claim 3, characterized in that: Each assembly hole group (11) comprises two positioning grooves (111), and the two positioning grooves (111) are symmetrically arranged on both sides of a center line, and the center line passes through the center of the bolt hole (112) along a first direction.

5. The sodium ion soft pack battery testing device according to claim 1, characterized in that: The assembly hole groups (11) are arranged in a plurality of columns at intervals along the first direction, and each column of the assembly hole groups (11) is arranged in a plurality of rows at intervals along the second direction; The distances between the assembly hole groups (11) in two adjacent columns are the same, and the distances between the assembly hole groups (11) in two adjacent rows are the same.

6. The sodium ion soft pack battery testing device according to claim 1, characterized in that: The longitudinal section of the positioning groove (111) is L-shaped.

7. The sodium ion soft pack battery testing device according to claim 1, characterized in that: The sodium ion soft pack battery testing device further comprises a test box, the carrier plate (1) is placed inside the test box, and the test box is capable of changing the internal temperature.

8. The sodium ion soft pack battery testing device according to claim 7, characterized in that: The inner wall of the test box is provided with a plurality of guide rail grooves along the height direction, the guide rail grooves extend along the horizontal direction, and the carrying plate (1) can slide along the guide rail grooves.

9. The sodium ion soft pack battery testing device according to claim 8, characterized in that: The sodium ion soft pack battery testing device further comprises a layer plate, the carrier plate (1) is detachably connected to the layer plate, a handle is provided on the layer plate, and the layer plate is movably clamped in the guide rail groove.

10. The sodium ion soft pack battery testing device according to any one of claims 1 to 9, characterized in that: The supporting plate (1) is made of insulating material.

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