Battery cell test fixture

Abstract

The utility model relates to the technical field of battery cell testing devices, in particular to a battery cell testing clamp. The battery cell test fixture comprises a substrate used for placing a battery cell; the first clamping assembly comprises a positive contactor, a negative contactor and a detection adjusting part, and the positive contactor and the negative contactor are arranged at an interval in the first direction of the substrate; at least one of the positive contactor and the negative contactor can move in the first direction and is fixed through the detection adjusting piece. The positive electrode contactor is provided with a positive electrode pressure detection element which is in contact with the positive electrode of the battery cell, and the negative electrode contactor is provided with a negative electrode pressure detection element which is in contact with the negative electrode of the battery cell; the second clamping assembly is arranged in the second direction of the base plate and can move in the second direction and be fixed. The battery cell test clamp is good in universality and high in universality, and clamping pressure can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of cell testing devices, in particular to a cell testing fixture. Background Art

[0002] During the process of testing battery cells, a cell testing fixture is required. The cell testing fixture can support, position, lock, etc. the cell, so as to ensure that the cell maintains a stable position during the test and verification process. However, the cell testing fixtures in the related art are difficult to accurately fix cells of different sizes, and the universality is not high; moreover, during the process of clamping the cell, it is not easy to grasp the clamping force. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cell testing fixture, so as to solve to a certain extent the technical problems existing in the prior art that the cell testing fixture is difficult to accurately fix cells of different sizes, the universality is not high; moreover, during the process of clamping the cell, it is not easy to grasp the clamping force.

[0004] The utility model provides a cell testing fixture, including: a substrate for placing the cell; a first clamping assembly including a positive contactor and a negative contactor, a positive pressure detection element for contacting the positive electrode of the cell is arranged on the positive contactor, and a negative pressure detection element for contacting the negative electrode of the cell is arranged on the negative contactor; the first clamping assembly further includes a detection and adjustment member, in a first direction of the substrate, the positive contactor and the negative contactor are arranged at intervals; at least one of the positive contactor and the negative contactor can move along the first direction and is fixed by the detection and adjustment member; a second clamping assembly, in a second direction of the substrate, the first clamping assembly and the second clamping assembly are arranged relatively at intervals; the second clamping assembly includes a bearing seat and a bearing adjustment member, the bearing seat can move along the second direction and is fixed by the bearing adjustment member.

[0005] The space between the first clamping assembly and the second clamping assembly forms a battery cell fixing space. The battery cell can be placed on the carrier. According to the specific size of the battery cell, the carrier is moved in the second direction (for example, the length direction of the substrate) towards the direction close to the first clamping assembly until the positive electrode of the battery cell is disengaged from the positive electrode contactor and the negative electrode of the battery cell contacts the negative electrode contactor. The first clamping assembly and the carrier clamp and fix the battery cell. Therefore, the battery cell test fixture of the present utility model can adjust the size of the installation space and the relative positions of the positive electrode contactor and the negative electrode contactor according to the specific specifications of the battery cell, so as to be able to fix battery cells of different specifications, with good versatility and high universality. During the process of adjusting the carrier, the positive electrode pressure detection element can detect the pressure at the positive electrode of the battery cell, and the negative electrode pressure detection element can detect the pressure at the negative electrode of the battery cell, so that the pressure received by the battery cell can be obtained in real time, facilitating the adjustment of the clamping pressure, avoiding unstable fixation and poor contact caused by too small pressure, and also avoiding damage to the battery cell caused by too large pressure.

[0006] Further, the second clamping assembly further includes a first clamping plate, a second clamping plate and a clamping plate adjusting member; in the first direction, the first clamping plate and the second clamping plate are relatively spaced apart and arranged on the carrier, and at least one of the first clamping plate and the second clamping plate can move in the first direction and be fixed by the clamping plate adjusting member.

[0007] Further, a chute extending in the first direction is provided on the carrier; the first clamping plate slides along the chute, and / or the second clamping plate slides along the chute; the clamping plate adjusting member is an elastic member connected between the first clamping plate and the second clamping plate.

[0008] Further, the carrier adjusting member includes an adjusting screw and a base. The base is located on the side of the carrier away from the first clamping assembly. An adjusting threaded hole extending in the second direction is provided on the base, and one end of the adjusting screw passes through the adjusting threaded hole and is connected to the carrier.

[0009] Further, a groove is provided on the base, and the carrier can be located in the groove.

[0010] Further, a plurality of base fixing holes are provided on the substrate, and the plurality of base fixing holes are spaced apart along the second direction; a base mating hole is provided on the base, and a base fastener passes through the base mating hole and one of the base fixing holes.

[0011] Further, the number of the detection and adjustment members is two, and the two detection and adjustment members are arranged at intervals in the first direction. The positive contactor and the negative contactor are located between the two detection and adjustment members. The detection and adjustment member includes a test mounting base and a test screw. A test threaded hole extending in the first direction is provided on the test mounting base, and one end of the test screw passes through the test threaded hole. The two test screws are respectively connected to the positive contactor and the negative contactor.

[0012] Further, a plurality of test fixing holes are provided on the substrate, and the plurality of test fixing holes are arranged at intervals in the first direction. A test fitting hole is provided on the test mounting base. A test fastener passes through the test fitting hole and one of the test fixing holes.

[0013] Further, a positive voltage detection element and a positive temperature detection element for contacting the positive electrode of the battery cell are provided on the positive contactor. A negative voltage detection element and a negative temperature detection element for contacting the negative electrode of the battery cell are provided on the negative contactor.

[0014] Further, a positive side wire groove and a negative side wire groove are further provided on the substrate. A positive side wire harness is provided in the positive side wire groove, and a negative side wire harness is provided in the negative side wire groove. The positive pressure detection element, the positive voltage detection element and the positive temperature detection element are all connected to the positive side wire harness. The negative pressure detection element, the negative voltage detection element and the negative temperature detection element are all connected to the negative side wire harness.

[0015] It should be understood that both the foregoing general description and the following detailed description are for the purpose of illustration and example only and are not necessarily limiting of the present disclosure. The accompanying drawings incorporated in and constituting a part of this specification illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is the front view of the battery cell test fixture according to the embodiment of the present invention;

[0018] Figure 2 is Figure 1 the bottom view of the shown battery cell test fixture;

[0019] Figure 3 is Figure 1 the top view of the battery cell test fixture shown in the figure;

[0020] Figure 4 is Figure 1 the structural schematic diagram of the battery cell test fixture shown in the figure.

[0021] Icon:

[0022] 1 - Substrate;

[0023] 2 - First clamping assembly; 21 - Positive contactor; 22 - Negative contactor; 23 - Positive side adjuster; 24 - Negative side adjuster; 231 - Positive side mounting seat; 232 - Positive side screw; 233 - Positive side knob; 241 - Negative side mounting seat; 242 - Negative side screw; 243 - Negative side knob;

[0024] 3 - Second clamping assembly; 31 - Carrier seat; 32 - Carrier adjuster; 33 - First clamping plate; 34 - Second clamping plate; 35 - Slide groove; 321 - Base; 322 - Adjusting screw; 323 - Adjusting knob; 324 - Groove;

[0025] 4 - Positive side wire groove; 5 - Negative side wire groove; 6 - Positive side wire harness; 7 - Negative side wire harness. Specific embodiments

[0026] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Generally, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] As Figures 1 to 4 shown, the present utility model provides a cell test fixture, including a substrate 1 for placing a cell; a first clamping assembly 2, including a positive electrode contactor 21, a negative electrode contactor 22, and a detection and adjustment member; a positive pressure detection element (such as a pressure sensor) for contacting the positive electrode of the cell is provided on the positive electrode contactor 21, and a negative pressure detection element (such as a pressure sensor) for contacting the negative electrode of the cell is provided on the negative electrode contactor 22; in the first direction of the substrate 1, the positive electrode contactor 21 and the negative electrode contactor 22 are spaced apart; at least one of the positive electrode contactor 21 and the negative electrode contactor 22 can move along the first direction and be fixed by the detection and adjustment member; a second clamping assembly 3, in the second direction of the substrate 1, the first clamping assembly 2 and the second clamping assembly 3 are relatively spaced apart; the second clamping assembly 3 includes a carrier 31 and a carrier adjustment member 32, and the carrier 31 can move along the second direction and be fixed by the carrier adjustment member 32.

[0033] In this embodiment, at least one of the positive contactor 21 and the negative contactor 22 can move along the first direction (for example, the first direction of the substrate 1) and is fixed by the detection and adjustment member, so that the relative positions of the positive contactor 21 and the negative contactor 22 can be adjusted (for example: the positive contactor 21 can move along the first direction towards or away from the negative contactor 22 and is fixed by the detection and adjustment member, so as to adjust the relative positions of the positive contactor 21 and the negative contactor 22; or, the negative contactor 22 can move along the first direction towards or away from the negative contactor 22 and is fixed by the detection and adjustment member, so as to adjust the relative positions of the negative contactor 22 and the negative contactor 22; or, both the positive contactor 21 and the negative contactor 22 can move along the first direction and are fixed by the detection and adjustment member, so as to adjust the relative positions of the positive contactor 21 and the negative contactor 22). Thus, according to the positions of the positive and negative electrodes of the battery cell, the relative positions of the positive contactor 21 and the negative contactor 22 can be adjusted, so that the positive contactor 21 is directly opposite to the positive electrode of the battery cell, and the negative contactor 22 is directly opposite to the negative electrode of the battery cell.

[0034] The space between the first clamping assembly 2 and the second clamping assembly 3 forms a battery cell fixing space. The battery cell can be placed on the carrier 31. According to the specific size of the battery cell, the carrier 31 is moved in the second direction (for example, the length direction of the substrate 1) towards the first clamping assembly 2 until the positive electrode of the battery cell is disengaged from the positive contactor 21 and the negative electrode of the battery cell contacts the negative contactor 22. The first clamping assembly 2 and the carrier 31 clamp and fix the battery cell. Therefore, the battery cell test fixture in this embodiment can adjust the size of the installation space and the relative positions of the positive contactor 21 and the negative contactor 22 according to the specific specifications of the battery cell, so as to be able to fix battery cells of different specifications, with good versatility and high universality. During the process of adjusting the carrier 31, the positive pressure detection element can detect the pressure at the positive electrode of the battery cell, and the negative pressure detection element can detect the pressure at the negative electrode of the battery cell, so that the pressure received by the battery cell can be obtained in real time, which is convenient for adjusting the clamping pressure, avoiding unstable fixation and poor contact caused by too small pressure, and also avoiding damage to the battery cell caused by too large pressure.

[0035] It can be understood that both the positive pressure detection element and the negative pressure detection element can be communicatively connected to a terminal with a display function (such as a display). The positive pressure detection element and the negative pressure detection element can transmit the detected pressure information to the terminal, and the user can understand the positive pressure and the negative pressure in real time from the terminal, so as to adjust the clamping force in real time.

[0036] Based on the above embodiments, further, the second clamping assembly 3 further includes a first clamping plate 33, a second clamping plate 34 and a clamping plate adjusting member; in the first direction, the first clamping plate 33 and the second clamping plate 34 are relatively spaced apart on the carrier seat 31, and at least one of the first clamping plate 33 and the second clamping plate 34 can move in the first direction and be fixed by the clamping plate adjusting member.

[0037] In this embodiment, by at least one of the first clamping plate 33 and the second clamping plate 34 can move in the first direction and be fixed by the clamping plate adjusting member, the relative positions of the first clamping plate 33 and the second clamping plate 34 can be adjusted (for example: the first clamping plate 33 can move in the first direction towards or away from the second substrate 1 and be fixed by the clamping plate adjusting member, so as to adjust the relative positions of the first clamping plate 33 and the second clamping plate 34; or, the second clamping plate 34 can move in the first direction towards or away from the first clamping plate 33 and be fixed by the clamping plate adjusting member, so as to adjust the relative positions of the first clamping plate 33 and the second clamping plate 34; or, both the first clamping plate 33 and the second clamping plate 34 can move in the first direction and be fixed by the clamping plate adjusting member, so as to adjust the relative positions of the first clamping plate 33 and the second clamping plate 34). Thus, the relative positions of the first clamping plate 33 and the second clamping plate 34 can be adjusted according to the specific specifications of the battery cell, and then the first clamping plate 33 and the second clamping plate 34 clamp the battery cell in the first direction. Therefore, the second clamping assembly 3 and the first clamping assembly 2 clamp the battery cell in the first direction, and the first clamping plate 33 and the second clamping plate 34 clamp the battery cell in the second direction, and the first direction and the second direction intersect (preferably, the first direction and the second direction are perpendicular), so that the battery cell can be fixed more stably.

[0038] Among them, the clamping plate adjusting member can be a lead screw structure to adjust and fix at least one of the first clamping plate 33 and the second clamping plate 34.

[0039] As an alternative solution, as Figure 3 and Figure 4 shown, the carrier seat 31 is provided with a chute 35 extending in the first direction; the first clamping plate 33 slides along the chute 35, and / or the second clamping plate 34 slides along the chute 35; the clamping plate adjusting member is an elastic member connected between the first clamping plate 33 and the second clamping plate 34.

[0040] In this embodiment, by sliding the first clamping plate 33 along the sliding groove 35 and / or sliding the second clamping plate 34 along the sliding groove 35, the relative positions of the first clamping plate 33 and the second clamping plate 34 can be adjusted. The first clamping plate 33 and / or the second clamping plate 34 sliding along the sliding groove 35 can make the movement of the first clamping plate 33 and / or the second clamping plate 34 stable. An elastic member (such as a spring) is connected between the first clamping plate 33 and the second clamping plate 34. The elastic member can apply a force to the first clamping plate 33 and / or the second clamping plate 34 to make them approach each other. The first clamping plate 33 and the second clamping plate 34 are pulled apart and respectively clamped on both sides of the battery cell. The first clamping plate 33 and the second clamping plate 34 are clamped on both sides of the battery cell by the force of the elastic member.

[0041] Among them, it can be set that the first clamping plate 33 slides along the sliding groove 35 and the second clamping plate 34 is fixed on the bearing seat 31; or, the second clamping plate 34 slides along the sliding groove 35 and the first clamping plate 33 is fixed on the bearing seat 31; or, both the first clamping plate 33 and the second clamping plate 34 slide along the sliding groove 35.

[0042] Specifically, as Figure 4 shown, the first clamping plate 33 includes a first clamping part and a first sliding part connected to each other, and the second clamping plate 34 includes a second clamping part and a second sliding part connected to each other; the first clamping part and the second clamping part are respectively clamped on both sides of the battery cell, the first sliding part and the second sliding part both slide along the sliding groove 35, and the elastic member is connected between the first sliding part and the second sliding part. Optionally, along the thickness direction of the substrate 1, a plurality of sliding grooves 35 are provided on the bearing seat 31 at intervals. Correspondingly, the number of the first sliding parts and the second sliding parts is also a plurality.

[0043] On the basis of the above embodiment, the structural form of the bearing adjusting member 32 can be various. For example: the bearing adjusting member 32 is an electric telescopic rod; or, the bearing adjusting member 32 includes a gear, a rack and a clamping plate. The gear is rotatably arranged on the substrate 1, the rack meshes with the gear and is slidably arranged on the substrate 1, the clamping plate is rotatably arranged on the substrate 1, the clamping plate can rotate in a plane perpendicular to the substrate 1 and is fixed in the second direction. By rotating the gear to drive the rack to move in the second direction, when the bearing seat 31 reaches the appropriate position, the clamping plate is rotated into the corresponding gear tooth groove, so as to fix the current position of the gear, and further fix the current position of the bearing seat 31.

[0044] As an alternative solution, as Figures 1 to 4 shown, the bearing adjusting member 32 includes an adjusting screw 322 and a base 321. The base 321 is located on the side of the bearing seat 31 away from the first clamping assembly 2. The base 321 is provided with an adjusting threaded hole extending in the second direction, and one end of the adjusting screw 322 passes through the adjusting threaded hole and is connected to the bearing seat 31.

[0045] In this embodiment, the adjusting screw 322 and the connecting threaded hole realize a screw mechanism, thereby realizing the movement and fixation of the bearing seat 31, which has a simple structure and is easy to use.

[0046] A support seat 31 adjusting knob 323 may be provided at the end of the adjusting screw 322 away from the support seat 31 to facilitate the user in rotating the adjusting screw 322 .

[0047] like Figure 1 As shown, based on the above embodiment, further, a groove 324 is provided on the base 321 , and the supporting seat 31 can be located in the groove 324 .

[0048] In this embodiment, the supporting seat 31 can be moved into the groove 324. On the one hand, it can expand the movement adjustment range of the supporting seat 31 in the second direction. On the other hand, when the battery cell test fixture is not needed, the supporting seat 31 can be stored in the groove 324, making the battery cell test fixture structure regular and compact.

[0049] On the basis of the above embodiment, further, a plurality of base 321 fixing holes are provided on the substrate, and the plurality of base 321 fixing holes are arranged at intervals along the second direction; a base 321 matching hole is provided on the base 321, and the base 321 matching hole and a base 321 fixing hole are penetrated by a base 321 fastener, thereby fixing the base 321 on the substrate 1.

[0050] In this embodiment, the position of the base 321 on the substrate 1 can be adjusted by connecting the matching holes of the base 321 and the fixing holes of different bases 321. On this basis, the position adjustment of the supporting seat 31 is realized. The base 321 can realize coarse adjustment of the second clamping assembly 3, and the supporting adjustment member 32 can realize fine adjustment of the second clamping assembly 3, thereby expanding the position adjustment range of the second clamping assembly 3 and adapting to more specifications of battery cells.

[0051] On the basis of the above embodiment, further, the detection adjustment member may include a fixed block, which is arranged on the substrate 1, and is provided with a slide extending along the first direction. One of the positive contactor 21 and the negative contactor 22 is slid in the slide. Optionally, both the positive contactor 21 and the negative contactor 22 are slid in the slide; a plurality of connection holes are provided on the fixed block, and corresponding connection holes are provided on the positive contactor 21 and the negative regulator. Fasteners are used to pass through the two connection holes, so that the positive contactor 21 and the negative contactor 22 can be fixed.

[0052] As an alternative, Figure 1 、 Figure 2 and Figure 4As shown, the number of detection adjustment members is two. The two detection adjustment members are spaced apart in the first direction. The positive contactor 21 and the negative contactor 22 are located between the two detection adjustment members. The detection adjustment member includes a test mounting base and a test screw. The test mounting base is provided with a test threaded hole extending in the first direction, and one end of the test screw passes through the test threaded hole. The two test screws are respectively connected to the positive contactor 21 and the negative contactor 22.

[0053] Specifically, one of the two detection adjustment members is a positive-side adjustment member 23, and the other is a negative-side adjustment member 24. The positive contactor 21 and the negative contactor 22 are located between the positive-side adjustment member 23 and the negative-side adjustment member 24. The positive-side adjustment member 23 includes a positive-side mounting base 231 and a positive-side screw 232. The positive-side mounting base 231 is provided with a positive-side threaded hole extending in the first direction, and one end of the positive-side screw 232 passes through the positive-side threaded hole and is connected to the positive contactor 21. The negative-side adjustment member 24 includes a negative-side mounting base 241 and a negative-side screw 242. The negative-side mounting base 241 is provided with a negative-side threaded hole extending in the first direction, and one end of the negative-side screw 242 passes through the negative-side threaded hole and is connected to the negative contactor 22. A positive-side knob 233 is provided at the end of the positive-side screw 232 away from the positive contactor 21 to facilitate the user to rotate the positive-side screw 232. A negative-side knob 243 is provided at the end of the negative-side screw 242 away from the negative contactor 22 to facilitate the user to rotate the negative-side screw 242.

[0054] In this embodiment, the test screw and the test threaded hole form a lead screw mechanism, which can realize the position adjustment and fixation of the positive contactor 21 and the negative contactor 22.

[0055] On the basis of the above embodiment, further, a plurality of test fixing holes are provided on the substrate, and the plurality of test fixing holes are spaced apart in the first direction. The test mounting base is provided with a test fitting hole. A test fastener passes through the test fitting hole and one of the test fixing holes.

[0056] In this embodiment, by connecting the test fitting hole and different test fixing holes, the position of the test mounting base can be tested. On this basis, the position adjustment of the positive contactor 21 and the negative contactor 22 can be realized. The coarse adjustment of the positive contactor 21 and the negative contactor 22 can be realized by adjusting the position of the test mounting base, and the fine adjustment of the positive contactor 21 and the negative contactor 22 can be realized by the detection adjustment member. Thus, the position adjustment range of the first clamping assembly 2 can be expanded, and more specifications of battery cells can be adapted.

[0057] Such as Figure 1 and Figure 4As shown, on the basis of the above embodiments, further, a positive electrode voltage detection element and a positive electrode temperature detection element for contacting the positive electrode of the battery cell are provided on the positive electrode contactor 21; the positive electrode voltage detection element (for example, a voltage sensor) detects the voltage of the positive electrode of the battery cell, and the positive electrode temperature detection element (for example, a temperature sensor) detects the temperature of the positive electrode of the battery cell.

[0058] A negative electrode voltage detection element and a negative electrode temperature detection element for contacting the negative electrode of the battery cell are provided on the negative electrode contactor 22; the negative electrode voltage detection element (for example, a voltage sensor) detects the voltage of the negative electrode of the battery cell, and the negative electrode temperature detection element (for example, a temperature sensor) detects the temperature of the negative electrode of the battery cell.

[0059] The battery cell test fixture provided in this embodiment can not only be used for fixing multi-specification battery cells and adjusting the clamping force, but also integrates the tests of the temperature and voltage of the battery cell. The battery cell test fixture provided in this embodiment is multifunctional and highly practical.

[0060] Specifically, as Figure 1 shown, a positive electrode side wire groove 4 and a negative electrode side wire groove 5 are further provided on the substrate. A positive electrode side wire harness 6 is provided in the positive electrode side wire groove 4, and a negative electrode side wire harness 7 is provided in the negative electrode side wire groove 5; the positive electrode pressure detection element, the positive electrode voltage detection element and the positive electrode temperature detection element are all connected to the positive electrode side wire harness 6; the negative electrode pressure detection element, the negative electrode voltage detection element and the negative electrode temperature detection element are all connected to the negative electrode side wire harness 7.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of the features of different embodiments means that it is within the scope of the present invention and forms different embodiments.

Claims

1. A cell test fixture, characterized in that, Comprising: A substrate (1) for placing an electric core; A first clamping assembly (2), including a positive contactor (21) and a negative contactor (22). A positive pressure detection element for contacting the positive electrode of the electric core is provided on the positive contactor (21), and a negative pressure detection element for contacting the negative electrode of the electric core is provided on the negative contactor (22); The first clamping assembly (2) further includes a detection and adjustment member. In a first direction of the substrate (1), the positive contactor (21) and the negative contactor (22) are spaced apart; At least one of the positive contactor (21) and the negative contactor (22) can move along the first direction and is fixed by the detection and adjustment member; A second clamping assembly (3). In a second direction of the substrate (1), the first clamping assembly (2) and the second clamping assembly (3) are relatively spaced apart; The second clamping assembly (3) includes a carrier seat (31) and a carrier adjustment member (32), and the carrier seat (31) can move along the second direction and is fixed by the carrier adjustment member (32).

2. The electric core test fixture according to claim 1, wherein The second clamping assembly (3) further includes a first clamping plate (33), a second clamping plate (34) and a clamping plate adjustment member; In the first direction, the first clamping plate (33) and the second clamping plate (34) are relatively spaced apart on the carrier seat (31), and at least one of the first clamping plate (33) and the second clamping plate (34) can move along the first direction and is fixed by the clamping plate adjustment member.

3. The electric core test fixture according to claim 2, wherein A chute (35) extending in the first direction is provided on the carrier seat (31); The first clamping plate (33) slides along the chute (35), and / or the second clamping plate (34) slides along the chute (35); The clamping plate adjustment member is an elastic member connected between the first clamping plate (33) and the second clamping plate (34).

4. The electric core test fixture according to claim 1, wherein The carrier adjustment member (32) includes an adjustment screw (322) and a base (321). The base (321) is located on a side of the carrier seat (31) away from the first clamping assembly (2). An adjustment threaded hole extending in the second direction is provided on the base (321), and one end of the adjustment screw (322) passes through the adjustment threaded hole and is connected to the carrier seat (31).

5. The electric core test fixture according to claim 4, wherein A groove (324) is provided on the base (321), and the carrier seat (31) can be located in the groove (324).

6. The electric core test fixture according to claim 4, wherein A plurality of base (321) fixing holes are provided on the substrate, and the plurality of base (321) fixing holes are spaced apart along the second direction; The base (321) is provided with a base (321) mating hole, and a base (321) fastener passes through the base (321) mating hole and one of the base (321) fixing holes.

7. The cell test fixture according to claim 1, wherein the number of the detection and adjustment members is two, the two detection and adjustment members are spaced apart in the first direction, and the positive electrode contactor (21) and the negative electrode contactor (22) are located between the two detection and adjustment members; the detection and adjustment member includes a test mounting seat and a test screw rod, the test mounting seat is provided with a test threaded hole extending in the first direction, and one end of the test screw rod passes through the test threaded hole; the two test screw rods are respectively connected to the positive electrode contactor (21) and the negative electrode contactor (22).

8. The cell test fixture according to claim 7, wherein the substrate is provided with a plurality of test fixing holes, and the plurality of test fixing holes are spaced apart in the first direction; the test mounting seat is provided with a test mating hole; a test fastener passes through the test mating hole and one of the test fixing holes.

9. The cell test fixture according to any one of claims 1-8, wherein the positive electrode contactor (21) is provided with a positive electrode voltage detection element and a positive electrode temperature detection element for contacting the positive electrode of the cell; the negative electrode contactor (22) is provided with a negative electrode voltage detection element and a negative electrode temperature detection element for contacting the negative electrode of the cell.

10. The cell test fixture according to claim 9, wherein the substrate is further provided with a positive electrode side wire groove (4) and a negative electrode side wire groove (5), a positive electrode side wire harness (6) is arranged in the positive electrode side wire groove (4), and a negative electrode side wire harness (7) is arranged in the negative electrode side wire groove (5); the positive electrode pressure detection element, the positive electrode voltage detection element and the positive electrode temperature detection element are all connected to the positive electrode side wire harness (6); the negative electrode pressure detection element, the negative electrode voltage detection element and the negative electrode temperature detection element are all connected to the negative electrode side wire harness (7).

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