Battery tray, battery testing device and battery production system

Abstract

The utility model relates to a battery tray, a battery testing device and a battery production system. The battery tray comprises a tray body, a test connecting bar and a tray terminal, and the tray body is used for bearing a battery to be tested; the test connecting bar is arranged on the tray body, and the test connecting bar is used for being connected with the battery test module in a matched mode; the tray terminal penetrates through the test connecting bar and is used for electrically connecting the battery and the battery test module, at least one end of the tray terminal extends out of the test connecting bar, and the part, extending out of the test connecting bar, of the tray terminal is provided with a heat dissipation groove. At least one end of each tray terminal extends out of the test connection bar, so that part of the structure of each tray terminal is exposed, and heat can be dissipated more quickly; the heat dissipation grooves are formed in the portions, extending out of the test connecting row, of the tray terminals, the heat dissipation area, exposed in the air, of the tray terminals is increased, therefore, the heat dissipation efficiency of the tray terminals is further improved, the influence of heating of the tray terminals on the battery test precision is reduced, and the accuracy of the battery test result is improved.

Description

Technical Field

[0001] This application relates to the field of battery testing technology, and in particular to battery trays, battery testing devices, and battery production systems. Background Technology

[0002] During the battery research and development process, various performance tests are required. Only after all performance tests are passed can the battery be put into production. Therefore, the battery testing process is particularly important in the entire production process.

[0003] With the development of automated testing technology, automated battery testing devices have gradually emerged. These devices consist of a battery testing module and a matching battery tray. The battery tray is used to transport the batteries to be tested to the testing module. The battery tray is equipped with tray terminals, which mate with the battery testing module to establish an electrical connection between the battery and the module. When conducting high-current tests on the battery, such as tests with currents exceeding 600A, the overheating of the tray terminals can affect the accuracy of the test results. Utility Model Content

[0004] In view of the above problems, this application provides a battery tray, a battery testing device, and a battery production system, which improves the heat dissipation performance of the tray terminals on the battery tray, reduces the impact of tray terminal heating on testing accuracy, and thus improves the accuracy of battery test results.

[0005] In a first aspect, this application provides a battery tray, the battery tray comprising:

[0006] The tray body is used to hold the battery to be tested;

[0007] The test connection bar is located on the tray body and is used to connect with the battery test module.

[0008] The tray terminal has a test connection bar for electrically connecting the battery and the battery test module. At least one end of the tray terminal extends out of the test connection bar, and the portion of the tray terminal extending out of the test connection bar is provided with a heat dissipation groove.

[0009] The battery tray proposed in this application connects the battery and the battery testing module by setting tray terminals on the test connection bar. By setting at least one end of the tray terminal to extend beyond the test connection bar, a portion of the tray terminal structure is exposed, enabling faster heat dissipation. By setting heat dissipation grooves on the portion of the tray terminal extending beyond the test connection bar, the heat dissipation area of ​​the tray terminal exposed to the air is increased, thereby further improving the heat dissipation efficiency of the tray terminal, reducing the impact of tray terminal heat generation on battery testing accuracy, and thus improving the accuracy of battery test results.

[0010] In some embodiments, the heat dissipation groove extends circumferentially along the outer peripheral surface of the tray terminal.

[0011] The battery tray proposed in this application creates a large heat dissipation area in the circumferential direction of the tray terminals by surrounding the heat dissipation grooves around the tray terminals.

[0012] In some embodiments, multiple heat dissipation slots are spaced apart, and the multiple heat dissipation slots are arranged at intervals along the direction in which the tray terminals pass through the test connection row.

[0013] The battery tray proposed in this application embodiment has multiple heat dissipation grooves spaced apart along the axial direction of the tray terminals to form a heat dissipation area as large as possible on the surface of the tray terminals.

[0014] In some embodiments, multiple heat sinks are arranged in parallel.

[0015] The battery tray proposed in this application embodiment has multiple parallel heat dissipation grooves, which are arranged neatly on the tray terminals, resulting in a better appearance and helping to maintain uniform heat dissipation.

[0016] In some embodiments, multiple heat dissipation slots are evenly spaced, the length of the tray terminal extending out of the test connection strip is set to L, the width of the multiple heat dissipation slots is set to L1, and the number of heat dissipation slots is set to N.

[0017] Wherein, L, L1 and N satisfy the condition: N*L1≤0.5*L.

[0018] The battery tray proposed in this application limits the number N of heat dissipation slots, the width L1 of the heat dissipation slots, and the length L of the tray terminal extending out of the test connection row, so that the total width of the multiple heat dissipation slots does not exceed half the length of the tray terminal extending out of the test connection row. This ensures that the heat dissipation slots can play a heat dissipation role while reducing the impact on the current carrying capacity of the tray terminals.

[0019] In some embodiments, L satisfies the condition: 10mm≤L≤20mm.

[0020] The battery tray proposed in this application embodiment limits the length L of the tray terminals extending out of the test connection bar to ensure that the tray terminals can meet the heat dissipation requirements without occupying too much of the battery tray's load-bearing space, thus ensuring the battery tray's load-bearing capacity for the battery.

[0021] In some embodiments, the radial dimension of the tray terminal is set to D, and the depth of the heat dissipation groove is set to D1. D and D1 satisfy the condition: 0.05*D≤D1≤0.1*D.

[0022] The battery tray proposed in this application embodiment, by limiting the depth of the heat dissipation groove, enables the tray terminals to meet the heat dissipation requirements, while avoiding the impact on the current carrying capacity of the tray terminals due to excessive heat dissipation groove depth.

[0023] In some embodiments, D satisfies the condition: 52mm≤D≤100mm.

[0024] The battery tray proposed in this application embodiment enables the tray terminals to withstand test currents of 1200A or more by limiting the radial dimension D of the tray terminals.

[0025] In some embodiments, the battery tray further includes:

[0026] The wire harness is configured to connect the tray terminals and the battery.

[0027] The battery tray proposed in this application embodiment facilitates connection with the tray terminals and the battery by setting up a wire harness, while the wire harness also has a better heat dissipation effect.

[0028] In some embodiments, the battery tray further includes fasteners, and the wiring harness is connected to the end face of the tray terminals via the fasteners.

[0029] The battery tray proposed in this application uses bolts or screws as fasteners, making connection and disassembly operations relatively quick. Connection holes are correspondingly provided on the connecting piece and the tray terminals, and fasteners pass through these connection holes to connect and fix the connecting piece and the tray terminals.

[0030] In some embodiments, a first positioning part is provided on the wire harness busbar, and a second positioning part is provided on the test connection busbar. The first positioning part and the second positioning part are adapted to position the wire harness busbar.

[0031] The battery tray proposed in this application uses a first positioning part and a second positioning part to position the wire harness, restricting the wire harness from rotating relative to the tray terminals, thereby improving the connection firmness of the wire harness on the tray terminals and helping to prevent the wire harness from loosening.

[0032] In some embodiments, one of the first positioning part and the second positioning part is configured as a positioning hole, and the other of the two is configured as a positioning pin that can be adapted to the positioning hole.

[0033] The battery tray proposed in this application embodiment, when assembling the wire harness strip with the tray terminals, first inserts a positioning pin into the positioning hole to initially position the wire harness strip, facilitating the connection operation of the fasteners between the wire harness strip and the tray terminals. After the wire harness strip is fixed to the tray terminals, the positioning pin prevents the wire harness strip from rotating relative to the fasteners, and also prevents the tray terminals from rotating relative to the test connection strip, thereby ensuring that the wire harness strip and the tray terminals do not loosen.

[0034] Secondly, this application provides a battery testing device, including a battery testing module and the battery tray provided in the above embodiments;

[0035] The battery tray is used to transport the battery to be tested to the battery test module, which is configured to test the battery.

[0036] Thirdly, this application provides a battery production system, including the battery testing device provided in the above embodiments.

[0037] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0038] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0039] Figure 1 This is a three-dimensional structural diagram of a battery tray according to some embodiments of this application.

[0040] Figure 2 This is a top view of the battery tray structure of some embodiments of this application.

[0041] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0042] The reference numerals in the detailed embodiments are as follows:

[0043] 1. Tray body; 2. Test connection bar; 21. Second positioning part; 3. Tray terminal; 31. Heat dissipation groove; 4. Wire harness bar; 41. Connecting piece; 411. First positioning part; 412. Connecting hole; 42. Wire harness. Detailed Implementation

[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] Currently, judging from market trends, battery applications are becoming increasingly widespread. Batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery applications, market demand is also constantly increasing.

[0053] During battery production, to ensure the finished products meet production requirements, batteries must be tested, such as charge / discharge tests, voltage acquisition tests, temperature acquisition tests, and pressure acquisition tests. To improve testing efficiency, traditional battery testing equipment typically includes a battery tray and a battery testing module. The battery tray holds the batteries to be tested and transports them to the battery testing module for various tests. The battery tray has test connection bars with integrated tray terminals. During testing, the battery is placed on the battery tray, and the battery's test terminals are electrically connected to the tray terminals. Thus, when connecting to the battery testing module, simply connecting the tray terminals on the test connection bars to the battery testing module establishes the electrical connection between the battery and the testing module.

[0054] With the continuous development of the battery industry, battery testing currents have reached 1200A or even higher. However, traditional tray terminals can generally only withstand currents below 600A. As the testing current continues to increase, the overheating problem of the tray terminals affects the accuracy of battery test results and also poses safety issues.

[0055] To resolve this issue, please refer to [link / reference]. Figures 1-3 , Figure 1 A three-dimensional structural schematic diagram of the battery tray according to some embodiments of this application is shown; Figure 2 This is a top view of the battery tray structure of some embodiments of this application; Figure 3 for Figure 2Enlarged structural view at point A. This application proposes a battery tray, comprising a tray body 1, a test connection bar 2, and tray terminals 3. The tray body 1 is used to hold the battery to be tested; the test connection bar 2 is disposed on the tray body 1 and is used to mate with a battery testing module; the tray terminals 3 pass through the test connection bar 2 and are used to electrically connect the battery and the battery testing module. At least one end of the tray terminals 3 extends out of the test connection bar 2, and the portion of the tray terminals 3 extending out of the test connection bar 2 is provided with a heat dissipation groove 31.

[0056] The battery tray proposed in this application connects the battery and the battery test module by setting tray terminals 3 on the test connection row 2. By setting at least one end of the tray terminal 3 to extend out of the test connection row 2, a portion of the structure of the tray terminal 3 is exposed, which enables faster heat dissipation. By setting heat dissipation grooves 31 on the portion of the tray terminal 3 extending out of the test connection row 2, the heat dissipation area of ​​the tray terminal 3 exposed to the air is increased, thereby further improving the heat dissipation efficiency of the tray terminal 3, reducing the impact of heat generation of the tray terminal 3 on the accuracy of battery testing, and thus improving the accuracy of battery test results.

[0057] In one embodiment, the tray terminal 3 has two ends, which are respectively connected to the battery and the battery test module. In other embodiments, the tray terminal 3 may also have three or more ends to enable it to have more connection functions. At least one end of the multiple ends of the tray terminal 3 is configured to extend beyond the test connection row 2 so that a heat dissipation groove 31 can be provided on the portion of the tray terminal 3 extending beyond the test connection row 2.

[0058] In one embodiment, such as Figure 2 As shown, the end of the tray terminal 3 facing the battery extends to the outside of the test connection bar 2, which accelerates heat dissipation and facilitates electrical connection with the battery. Of course, the end of the tray terminal 3 facing away from the battery can also extend to the outside of the test connection bar 2, or both ends of the tray terminal 3 can extend to the outside of the test connection bar 2.

[0059] Optionally, the tray terminal 3 passes through the test connection row 2, which has mounting holes. The tray terminal 3 can be fixed in the mounting holes of the test connection row 2 by threaded connection, and the tray terminal 3 extends along its own axial direction in the mounting holes.

[0060] In one embodiment, combined with Figure 2 and Figure 3 As shown, the heat dissipation groove 31 extends circumferentially along the outer periphery of the tray terminal 3, and the heat dissipation groove 31 surrounds the tray terminal 3 to form a large heat dissipation area in the circumferential direction of the tray terminal 3.

[0061] Optionally, multiple heat dissipation slots 31 are spaced apart, and the multiple heat dissipation slots 31 are arranged at intervals along the direction in which the tray terminal 3 passes through the test connection row 2. That is, multiple heat dissipation slots 31 are spaced apart along the axial direction of the tray terminal 3 to form a heat dissipation area as large as possible on the surface of the tray terminal 3.

[0062] In one embodiment, multiple heat dissipation grooves 31 are arranged in parallel so that the multiple heat dissipation grooves 31 are neatly arranged on the tray terminal 3, which has a better appearance and helps to maintain heat dissipation uniformity.

[0063] In one embodiment, multiple heat dissipation slots 31 are evenly spaced. The length of the tray terminal 3 extending out of the test connection row 2 is set as L, the width of the multiple heat dissipation slots 31 is set as L1, and the number of heat dissipation slots 31 is set as N. L, L1, and N satisfy the condition: N*L1≤0.5*L. By limiting the number N of heat dissipation slots 31, the width L1 of the heat dissipation slots 31, and the length L of the tray terminal 3 extending out of the test connection row 2, the total width of the multiple heat dissipation slots 31 does not exceed half the length of the tray terminal 3 extending out of the test connection row 2. This ensures that the heat dissipation slots 31 perform their heat dissipation function while reducing the impact on the current carrying capacity of the tray terminal 3.

[0064] In one embodiment, the length L of the tray terminal 3 extending out of the test connection strip 2 satisfies: 10mm ≤ L ≤ 20mm. By limiting the length L of the tray terminal 3 extending out of the test connection strip 2, it is ensured that the tray terminal 3 can meet the heat dissipation requirements without occupying too much of the battery tray's load-bearing space, thus ensuring the battery tray's load-bearing capacity for the battery.

[0065] In one embodiment, the radial dimension of the tray terminal 3 is set as D, and the depth dimension of the heat dissipation groove 31 is set as D1. D and D1 satisfy the condition: 0.05*D≤D1≤0.1*D. By limiting the depth dimension D1 of the heat dissipation groove 31, the tray terminal 3 can meet the heat dissipation requirements, while avoiding the current carrying capacity of the tray terminal 3 being affected by the excessive depth of the heat dissipation groove 31.

[0066] In one embodiment, the radial dimension D of the tray terminal 3 satisfies the condition: 52mm≤D≤100mm.

[0067] By limiting the radial dimension D of the tray terminal 3, the tray terminal 3 can withstand test currents of 1200A or more. As the test current increases, the upper limit of the outer diameter of the tray terminal 3 can be adaptively increased. Only one preferred embodiment of the outer diameter of the tray terminal 3 is shown here, and the range of the outer diameter of the tray terminal 3 is not limited.

[0068] In one embodiment, please refer to Figure 2The battery tray also includes a wiring harness 4, which is configured to connect the tray terminals 3 and the battery. The wiring harness 4 facilitates connection to the tray terminals 3 and the battery, while also providing better heat dissipation.

[0069] Specifically, the wiring harness 4 includes a connecting piece 41 and two wire harnesses 42. The two wire harnesses 42 are electrically connected to the connecting piece 41, and the connecting piece 41 is connected to the tray terminal 3. Of course, the number of wire harnesses 42 is not limited to two; one or more wire harnesses 42 may be provided. In one embodiment, the wire harnesses 42 may be wire harnesses with a load current of 600A. The actual load current of the wiring harness 4 should be adapted to the load capacity of the tray terminal 3 and specifically set according to the battery's test current requirements.

[0070] In one embodiment, the battery tray further includes fasteners, and the wiring harness 4 is connected to the end face of the tray terminal 3 via the fasteners. The fasteners can be bolts or screws, allowing for quick connection and disassembly. Connecting holes 412 are correspondingly provided on the connecting piece 41 and the tray terminal 3, and the fasteners pass through the connecting holes 412 to connect and fix the connecting piece 41 and the tray terminal 3.

[0071] In one embodiment, the wire harness 4 is provided with a first positioning part 411, and the test connection 2 is provided with a second positioning part 21. The first positioning part 411 and the second positioning part 21 are adapted to position the wire harness 4. By cooperating with the first positioning part 411 and the second positioning part 21, the wire harness 4 is positioned, restricting the rotation of the wire harness 4 relative to the tray terminal 3, thereby improving the connection firmness of the wire harness 4 on the tray terminal 3 and helping to prevent the wire harness 4 from becoming loose.

[0072] Optionally, one of the first positioning part 411 and the second positioning part 21 is configured as a positioning hole, and the other is configured as a positioning pin adapted to the positioning hole. In one embodiment, the first positioning part 411 is configured as a positioning hole, and the second positioning part 21 is configured as a positioning pin.

[0073] When assembling the wire harness 4 with the tray terminal 3, first insert the locating pin into the locating hole to initially position the wire harness 4, facilitating the connection operation of the fasteners between the wire harness 4 and the tray terminal 3. After the wire harness 4 is fixed to the tray terminal 3, the locating pin prevents the wire harness 4 from rotating relative to the fasteners, and also prevents the tray terminal 3 from rotating relative to the test connection 2, thus ensuring that the wire harness 4 and the tray terminal 3 do not loosen.

[0074] In one embodiment, two tray terminals 3 are provided, and two corresponding wire harness rows 4 are provided, with each tray terminal 3 connected to one wire harness row 4. Each wire harness row 4 is provided with a second positioning part 21 for positioning.

[0075] The tray terminal 3 provided in this embodiment includes a tray body 1, a test connection strip 2, and a tray terminal 3. The tray body 1 is used to hold the battery to be tested. The test connection strip 2 is disposed on the tray body 1 and is used to mate with the battery test module. The tray terminal 3 passes through the test connection strip 2 and is used to electrically connect the battery and the battery test module. The end of the tray terminal 3 facing the battery extends out of the test connection strip 2, and a heat dissipation groove 31 is provided on the part of the tray terminal 3 extending out of the test connection strip 2. By exposing part of the structure of the tray terminal 3 to the outside of the test connection strip 2, the tray terminal 3 can dissipate heat more quickly. By providing a heat dissipation groove 31 on the part of the tray terminal 3 extending out of the test connection strip 2, the heat dissipation area of ​​the tray terminal 3 exposed to the air is increased, thereby further improving the heat dissipation efficiency of the tray terminal 3. The tray terminal 3 provided in this embodiment also includes a wire harness strip 4, which electrically connects the tray terminal 3 and the battery. The wire harness strip 4 has better heat dissipation performance than ordinary current leads. Furthermore, the harness 4 includes multiple harnesses 42, which can increase the upper limit of the compatible current, thereby enabling the harness 4 to adapt to high currents of 1200A and above, in order to meet the high current testing requirements of batteries.

[0076] This application also provides a battery testing device, including a battery testing module and the battery tray in the above embodiments; the battery tray is used to transport the battery to be tested to the battery testing module, and the battery testing module is configured to test the battery.

[0077] This application also provides a battery production system, which includes the battery testing device described in the above embodiments.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery tray, characterized by, The battery tray comprises: a tray body (1) for carrying a battery to be tested; a test connection row (2) arranged on the tray body (1), the test connection row (2) being configured to mate with a battery test module; a tray terminal (3) penetrating the test connection row (2), the tray terminal (3) being configured to electrically connect the battery and the battery test module, at least one end of the tray terminal (3) extending out of the test connection row (2), and a portion of the tray terminal (3) extending out of the test connection row (2) being provided with a heat dissipation groove (31).

2. The battery tray of claim 1, wherein, The heat dissipation groove (31) extends circumferentially along the outer circumferential surface of the tray terminal (3).

3. The battery tray of claim 1, wherein, A plurality of heat dissipation grooves (31) are arranged at intervals in the direction in which the tray terminal (3) penetrates the test connection row (2).

4. The battery tray of claim 3, wherein, The plurality of heat dissipation grooves (31) are arranged in parallel.

5. The battery tray of claim 4, wherein, The plurality of heat dissipation grooves (31) are uniformly arranged at intervals, the length dimension of the tray terminal (3) extending out of the test connection row (2) is L, the width dimension of the plurality of heat dissipation grooves (31) is L1, and the number of the heat dissipation grooves (31) is N; wherein the L, L1 and N satisfy the condition: N*L1≤0.5*L.

6. The battery tray of claim 5, wherein, The L satisfies the condition: 10mm≤L≤20mm.

7. The battery tray of claim 1, wherein, The radial dimension of the tray terminal (3) is D, and the depth dimension of the heat dissipation groove (31) is D1, and the D and D1 satisfy the condition: 0.05*D≤D1≤0.1*D.

8. The battery tray of claim 7, wherein, The D satisfies the condition: 52mm≤D≤100mm.

9. The battery tray of any one of claims 1-8, wherein, The battery tray further comprises: a wire harness row (4) configured to connect the tray terminal (3) and the battery.

10. The battery tray of claim 9, wherein, The battery tray further comprises a fastener, and the wire harness row (4) is connected to the end face of the tray terminal (3) through the fastener.

11. The battery tray of claim 10, wherein, The wire harness row (4) is provided with a first positioning part (411), and the test connection row (2) is provided with a second positioning part (21), the first positioning part (411) and the second positioning part (21) are matched to position the wire harness row (4).

12. The battery tray of claim 11, wherein, One of the first positioning part (411) and the second positioning part (21) is configured as a positioning hole, and the other is configured as a positioning pin matched with the positioning hole.

13. A battery testing device, characterized by The battery tray comprises a battery test module and the battery tray according to any one of claims 1-12; The battery tray is configured to deliver a battery to be tested to the battery test module, and the battery test module is configured to test the battery.

14. A battery production system characterized by comprising: The battery test device according to claim 13.

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