Testing device and battery system

Abstract

The utility model provides a testing device and a battery system. The testing device is applied to a power module in a battery system and comprises an insulating piece and a connecting piece. The insulator is for securing to a housing of the power module. The connecting piece penetrates through the insulating piece, a first end and a second end, opposite to each other, of the connecting piece protrude out of the insulating piece, the first end is provided with a first connecting hole used for connecting an input end of the power module, and the second end is provided with a connecting line used for connecting a test power supply. According to the invention, the testing device composed of the insulating part and the connecting part is arranged, the insulating part is fixed on the power module, and the input end of the power module is electrically connected with the testing power supply by being connected to the connecting part, so that the problem that the testing power supply and the power module are directly connected and installed, and the size tolerance is large is solved. And the testing device can be matched with the power module and the testing power supply to carry out various tests, so that the accuracy of a testing result is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of battery systems, and specifically relates to a testing device and a battery system. Background Art

[0002] At present, when testing the battery system, the test power supply and the power module are connected by a connector cable or a copper busbar. Since the test power supply and the power module are two relatively large components, the installation size tolerance is large. After installation, the copper busbars of the test power supply and the power module are easy to collide or fail to effectively contact and conduct electricity. The contact impedance between the two is relatively large, and the heat is serious, which directly affects the reliability of the test power supply and the power module, thereby reducing the accuracy of the test results. Utility Model Content

[0003] In view of this, a first aspect of the present application provides a testing device applied to a power module in a battery system, the testing device comprising:

[0004] An insulating member, used for being fixed to a housing of the power module;

[0005] A connecting member passes through the insulating member, wherein the first end and the second end of the connecting member are opposite to each other and both protrude from the insulating member, the first end is provided with a first connecting hole, the first connecting hole is used to connect to the input end of the power module, and the second end is provided with a connecting wire, the connecting wire is used to connect to a test power supply.

[0006] The test device provided in the first aspect of the present application is composed of an insulating member and a connecting member. The entire test device is fixed to the housing of the power module through the insulating member. The connecting member is conductive, and the input end of the power module can be fastened to the first end of the connecting member by a screw, and the screw is inserted into the first connecting hole. The test power supply can be electrically connected to the input end of the power module through a connecting wire connected to the second end.

[0007] Therefore, the present application sets up a test device consisting of an insulating part and a connecting part, so that the insulating part is fixed on the power module, and the input end of the power module and the test power supply are electrically connected by connecting to the connecting part respectively, thereby avoiding the problem of large installation size tolerance when the test power supply and the power module are directly connected, and effectively reducing the conductive impedance of the two caused by the installation stress. The test device can cooperate with the power module and the test power supply to perform various tests, thereby improving the accuracy of the test results.

[0008] The insulating member includes a first surface and a second surface facing each other, the first end passes through the first surface, the second end passes through the second surface, the extension direction of the first end is parallel to the extension direction of the input end, and the first end and the second end are arranged at an angle.

[0009] Among them, the second end is provided with a second connecting hole, and the testing device also includes an anti-slip nut embedded in the second surface, and a first screw for fixing the connecting line, the anti-slip nut corresponds to the second connecting hole, and the first screw passes through the second connecting hole and is threadedly connected to the anti-slip nut.

[0010] Among them, the first surface is provided with a boss, the boss is used to be inserted in the shell, the first end passes through the top surface of the boss, the peripheral side of the boss is provided with a first mounting hole, the connecting member is provided with a second mounting hole corresponding to the first mounting hole, and the first mounting hole and the second mounting hole are used to accommodate a second screw connecting the insulating member and the connecting member.

[0011] Wherein, the testing device further includes a sealing ring, which is arranged at the connection between the insulating member and the shell, and the first surface is provided with an annular groove arranged around the boss, and the annular groove is used to accommodate at least part of the sealing ring.

[0012] The insulating member is provided with a third mounting hole penetrating the first surface and the second surface, and the third mounting hole is used to accommodate a third screw connecting the insulating member and the housing.

[0013] The second surface is provided with a glue pouring groove, the second end passes through the bottom of the glue pouring groove, the glue pouring groove is used to contain sealant, and the sealant is used to seal the second end and the insulating member.

[0014] Wherein, the insulating member and the connecting member are integrally formed structural members.

[0015] Wherein, the connector includes a positive connector and a negative connector which are arranged at intervals, the first end of the positive connector is used to connect the positive electrode of the input end, and the first end of the negative connector is used to connect the negative electrode of the input end.

[0016] The second aspect of the present application provides a battery system, which includes a power module, a test power supply, and a test device as provided in the first aspect of the present application, wherein the insulating component of the test device is fixed to the housing of the power module, and the connecting component of the test device is connected to the input end of the power module and also connected to the test power supply.

[0017] The battery system provided in the second aspect of the present application adopts the test device provided in the first aspect of the present application, so that the insulating part is fixed on the power module, and the input end of the power module and the test power supply are electrically connected by connecting to the connecting parts respectively, thereby avoiding the problem of large installation size tolerance when the test power supply and the power module are directly connected, and effectively reducing the conductive impedance of the two caused by the installation stress. The test device can cooperate with the power module and the test power supply to perform various tests, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0019] Figure 1 A schematic diagram of the structure of a battery system provided in one embodiment of the present application.

[0020] Figure 2 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 1 .

[0021] Figure 3 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 2 .

[0022] Figure 4 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 3 .

[0023] Figure 5 A cross-sectional schematic diagram of a battery system provided in one embodiment of the present application.

[0024] Figure 6 A side view of a power module provided in one embodiment of the present application Figure 1 .

[0025] Figure 7 A side view of a power module provided in one embodiment of the present application Figure 2 .

[0026] Figure 8 A side view of a power module provided in one embodiment of the present application Figure 3 .

[0027] Fig. 9 for Figure 8 A side view of the power module with the cover removed is provided.

[0028] Fig.10 A schematic diagram of the structure of a testing device provided in one embodiment of the present application.

[0029] Fig.11 A schematic structural diagram of a testing device provided in one embodiment of the present application from another perspective.

[0030] Fig.12 A partial cross-sectional view of a battery system provided in accordance with one embodiment of the present application.

[0031] Fig.13 A schematic structural diagram of an insulating member provided in one embodiment of the present application.

[0032] Fig.14 A schematic structural diagram of an insulating member from another perspective provided in one embodiment of the present application.

[0033] Fig.15 A schematic diagram of the structure of a connector provided in one embodiment of the present application.

[0034] Fig.16 A schematic diagram of the structure of a portion of a testing device provided in one embodiment of the present application.

[0035] Reference numerals: battery system 1, power module 10, housing 11, liquid inlet 111, liquid outlet 112, output port 113, input port 114, external interface 115, vent valve 116, drain valve 117, cover 118, fixing hole 119, input end 12, test device 20, insulating member 21, first surface 21a, second surface 21b, boss 211, first mounting hole 2111, annular groove 21 2, third mounting hole -213, glue filling groove -214, positive electrode identification part -215, negative electrode identification part -216, block -217, connector -22, positive electrode connector -22a, negative electrode connector -22b, first end -221, first connecting hole -2211, second end -222, second connecting hole -2221, connecting line -223, body -224, second mounting hole -2241, anti-slip nut -23, first screw -24, sealing ring -25. DETAILED DESCRIPTION

[0036] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0037] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0038] In this application, "first", "second", etc. are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0040] In the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] Please refer to Figure 1-Figure 12 , Figure 1 A schematic diagram of the structure of a battery system provided in one embodiment of the present application. Figure 2 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 1 . Figure 3 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 2 . Figure 4 A schematic diagram of the structure of a power module provided in one embodiment of the present application Figure 3 . Figure 5 A cross-sectional schematic diagram of a battery system provided in one embodiment of the present application. Figure 6 A side view of a power module provided in one embodiment of the present application Figure 1 . Figure 7 A side view of a power module provided in one embodiment of the present application Figure 2 . Figure 8 A side view of a power module provided in one embodiment of the present application Figure 3 . Fig. 9 for Figure 8 A side view of the power module with the cover removed is provided. Fig.10 A schematic diagram of the structure of a testing device provided in one embodiment of the present application. Fig.11 A schematic structural diagram of a testing device provided in one embodiment of the present application from another perspective. Fig.12 A partial cross-sectional view of a battery system provided in accordance with one embodiment of the present application.

[0043] This embodiment provides a test device 20, which is applied to the power module 10 in the battery system 1, and the test device 20 includes an insulating member 21 and a connecting member 22. The insulating member 21 is used to be fixed to the housing 11 of the power module 10. The connecting member 22 passes through the insulating member 21, and the first end 221 and the second end 222 of the connecting member 22 are both protruding from the insulating member 21. The first end 221 is provided with a first connecting hole 2211, and the first connecting hole 2211 is used to connect the input end 12 of the power module 10. The second end 222 is provided with a connecting wire 223, and the connecting wire 223 is used to connect a test power supply.

[0044] The test device 20 provided in this embodiment is applied to the electrical test of the battery system 1. The battery system 1 includes a power module 10 and a test power supply. Optionally, the power module 10 can be a DC-to-DC converter device. The test power supply is used to perform electrical tests in conjunction with the power module 10. Optionally, the test power supply can be a battery stack. Optionally, the test power supply is a DC power supply.

[0045] like Figure 6 and Figure 7 As shown, the power module 10 has a liquid inlet 111, a liquid outlet 112, an output port 113, an input port 114, a plurality of external interfaces 115, and a breathable valve 116, which are arranged on the housing 11. For example, a 24V input port, a 24V output port, a 24V hydrogen pump output port, an air compressor external interface, a water pump external interface, a PTC external interface, a fan external interface, a low-pressure control external interface, etc.

[0046] like Figure 8 As shown, the housing 11 is also provided with a drain valve 117 and a cover 118, and the cover 118 is used to cover the input end 12. Fig. 9 As shown, after the cover 118 on the housing 11 is removed, the input end 12 is exposed from the housing 11 .

[0047] The test device 20 provided by the embodiment includes an insulating member 21, which is used to be fixed on the housing 11 of the power module 10. Optionally, the insulating member 21 is fixed to the housing 11 of the power module 10 by screws. Optionally, the insulating member 21 is snap-connected to the housing 11 of the power module 10.

[0048] The test device 20 provided in this embodiment further includes a connector 22 for connecting the power module 10 with the test power supply. For example, there are two connectors 22. The connector 22 is conductive. The connector 22 passes through the insulating member 21, which can also be understood as the connector 22 passing through the insulating member 21.

[0049] The connector 22 has a first end 221 and a second end 222 opposite to each other. The first end 221 is provided with a first connection hole 2211, which is used to cooperate with a screw to connect the input end 12 of the power module 10. For example, the number of first connection holes 2211 on each connector 22 is two. The first end 221 of the connector 22 can also be regarded as a copper busbar, which is connected to the copper busbar of the corresponding input end 12 of the power module 10, thereby realizing the electrical connection between the connector 22 and the power module. The first end 221 is inserted into the housing 11 of the power module 10.

[0050] The second end 222 is provided with a connecting wire 223, which can also be understood as a copper busbar harness, which is connected to the test power supply, thereby realizing an electrical connection between the connecting piece 22 and the test power supply. In other words, the test power supply and the power module 10 are indirectly electrically connected by using the connecting piece 22. The second end 222 is arranged outside the housing 11 of the power module 10.

[0051] Specifically, the entire test device 20 is fixed to the housing 11 of the power module 10 through the insulating member 21. The connector 22 is conductive, and the input terminal 12 of the power module 10 can be fastened to the first end 221 of the connector 22 through a screw, and the screw is inserted into the first connection hole 2211. The test power supply can be electrically connected to the input terminal 12 of the power module 10 through the connecting wire 223 connected to the second end 222.

[0052] Therefore, this embodiment sets a test device 20 composed of an insulating part 21 and a connecting part 22, so that the insulating part 21 is fixed on the power module 10, and the input terminal 12 of the power module 10 and the test power supply are electrically connected by connecting to the connecting part 22 respectively, thereby avoiding the problem of large installation dimension tolerance when the test power supply and the power module 10 are directly connected, and effectively reducing the conductive impedance of the two caused by the installation stress. The test device 20 can cooperate with the power module 10 and the test power supply to perform various tests, thereby improving the accuracy of the test results.

[0053] Please refer to Figure 13-Figure 15 , Fig.13 A schematic structural diagram of an insulating member provided in one embodiment of the present application. Fig.14 A schematic structural diagram of an insulating member from another perspective provided in one embodiment of the present application. Fig.15 A schematic diagram of the structure of a connector provided in one embodiment of the present application.

[0054] In one embodiment, the insulating member 21 includes a first surface 21a and a second surface 21b opposite to each other, the first end 221 passes through the first surface 21a, the second end 222 passes through the second surface 21b, the extension direction of the first end 221 is parallel to the extension direction of the input end 12, and the first end 221 and the second end 222 are arranged at an angle.

[0055] The connecting member 22 includes a body 224, a first end 221 and a second end 222 respectively disposed on opposite sides of the body 224. The body 224 is inserted into the insulating member 21. The first end 221 passes through the first surface 21a and protrudes from the insulating member 21. The second end 222 passes through the second surface 21b and protrudes from the insulating member 21. The second end 222 is bent and connected to the body 224.

[0056] Optionally, the extension direction of the first end 221 is parallel to the extension direction of the input end 12. Optionally, the extension direction of the first end 221 is perpendicular to the first surface 21a, and the extension direction of the second end 222 is parallel to the second surface 21b. Optionally, the angle between the extension direction of the first end 221 and the extension direction of the second end 222 is 60°-120°. Preferably, the angle between the extension direction of the first end 221 and the extension direction of the second end 222 is 90°. It can also be understood that the first end 221 and the second end 222 are perpendicular to each other.

[0057] This embodiment increases the distance between the input terminal 12 connected to the first end 221 and the test power supply connected to the second end 222 by respectively penetrating the first end 221 and the second end 222 with the first surface 21a and the second surface 21b opposite to each other, thereby further avoiding the problem of large dimensional tolerance when the test power supply and the power module 10 are directly connected and installed, reducing the probability of mutual interference between the test power supply and the power module 10, and further improving the accuracy of the test results.

[0058] In addition, this embodiment limits the extension direction of the first end 221 to be parallel to the extension direction of the input end 12, so that the first end 221 and the input end 12 are fastened together by screws; this embodiment also limits the first end 221 and the second end 222 to be arranged at an angle, changing the direction, so as to facilitate the connection of the connecting line 223 to the test power supply, thereby reducing the difficulty of connection.

[0059] Please refer to Figure 1-Figure 16 , Fig.16A schematic diagram of the structure of a part of the test device provided in one embodiment of the present application. In one embodiment, the second end 222 is provided with a second connection hole 2221, and the test device 20 further includes an anti-slip nut 23 embedded in the second surface 21b, and a first screw 24 for fixing the connection line 223, the anti-slip nut 23 corresponds to the second connection hole 2221, and the first screw 24 passes through the second connection hole 2221 and is threadedly connected to the anti-slip nut 23.

[0060] The second surface 21b is provided with a groove, and the anti-slip nut 23 is provided in the groove. It can also be understood that the anti-slip nut 23 is embedded in the second surface 21b. Optionally, the anti-slip thread is a hexagonal anti-slip nut 23. The anti-slip nut 23 also corresponds to the second connecting hole 2221. The connecting wire 223 is threadedly connected to the anti-slip nut 23 through the first screw 24 to fix the connecting wire 223 to the second end 222. Specifically, the first screw 24 not only connects the connecting wire 223, but also penetrates the second connecting hole 2221 and is threadedly connected to the anti-slip nut 23. For example, on each connecting member 22, the number of the second connecting holes 2221 is two.

[0061] In this embodiment, the first screw 24 cooperates with the anti-slip nut 23 so that the connecting wire 223 can be detachably connected to the second end 222, which is convenient for adjustment and operation.

[0062] Please refer to Figure 1-Figure 16 In one embodiment, a boss 211 is provided on the first surface 21a, and the boss 211 is used to be inserted into the shell 11. The first end 221 passes through the top surface of the boss 211, and the peripheral side of the boss 211 is provided with a first mounting hole 2111. The connecting member 22 is provided with a second mounting hole 2241 corresponding to the first mounting hole 2111. The first mounting hole 2111 and the second mounting hole 2241 are used to accommodate a second screw connecting the insulating member 21 and the connecting member 22.

[0063] The housing 11 of the power module 10 has a fixing hole 119, and the boss 211 is inserted into the fixing hole 119, so as to fix the insulating member 21 to the housing 11 of the power module 10. The first end 221 passes through the fixing hole 119 and extends into the housing 11. The body 224 of the connecting member 22 is inserted into the boss 211, and the body 224 has a second mounting hole 2241. The first mounting hole 2111 passes through the peripheral side surface of the boss 211 and is connected to the second mounting hole 2241. The second screw passes through the first mounting hole 2111 and the second mounting hole 2241 to connect the insulating member 21 and the connecting member 22.

[0064] In this embodiment, a boss 211 is provided on the insulating member 21, and the boss 211 is inserted into the housing 11, thereby improving the connection performance between the insulating member 21 and the housing 11, thereby improving the reliability of the test device 20. In addition, a first mounting hole 2111 is provided on the boss 211, and a second mounting hole 2241 is provided on the connecting member 22, so that the insulating member 21 and the connecting member 22 are fixedly connected by a second screw, thereby improving the connection performance between the insulating member 21 and the connecting member 22, thereby further improving the reliability of the test device 20.

[0065] In the related art, if the power module 10 is subjected to a long-term life electrical performance test under high temperature and high humidity, or high and low temperature interaction, after the test device 20 is assembled with the power module 10, a sealed cavity needs to be formed inside the housing 11 of the power module 10 to prevent moisture from entering the housing 11. Because when the temperature inside the housing 11 drops sharply, condensation is generated inside the housing 11, causing damage to the product power module 10.

[0066] Please refer to Figure 1-Figure 16 In one embodiment, the testing device 20 further includes a sealing ring 25, wherein the sealing ring 25 is disposed at the connection between the insulating member 21 and the housing 11, and the first surface 21a is provided with an annular groove 212 disposed around the boss 211, and the annular groove 212 is used to accommodate at least a portion of the sealing ring 25.

[0067] One side of the sealing ring 25 abuts against the groove wall of the annular groove 212, and the other side abuts against the surface of the housing 11. In this embodiment, the sealing ring 25 is provided so that the sealing ring 25 is at the connection between the insulating member 21 and the housing 11, thereby improving the sealing performance of the housing 11 when the test device 20 is fixed to the housing 11. In addition, in this embodiment, an annular groove 212 for accommodating the sealing ring 25 is further provided, thereby further improving the sealing performance of the housing 11 when the test device 20 is fixed to the housing 11.

[0068] When the power module 10 is actually used, the input port of the power module 10 and the battery stack of the battery system 1 form a sealed cavity. Therefore, using the test device 20 provided in this embodiment to perform a life test on the product can more realistically replicate the actual use conditions of the power module 10 and test the true performance of the power module 10.

[0069] Secondly, when the power module 10 is shipped, the test device 20 provided in this embodiment can be used to test the electrical performance of the power module 10. After the test is completed, the inside of the shell 11 of the power module 10 can be tested for airtightness, avoiding the need to replace test tools for two tests, thereby improving production efficiency.

[0070] Please refer to Figure 1-Figure 16In one embodiment, the insulating member 21 is provided with a third mounting hole 213 penetrating the first surface 21a and the second surface 21b, and the third mounting hole 213 is used to accommodate a third screw connecting the insulating member 21 and the housing 11.

[0071] The insulating part 21 provided in this embodiment is also provided with a third mounting hole 213. The third screw passes through the third mounting hole 213 and the shell 11 to connect the insulating part 21 and the shell 11 of the power module 10, so that the insulating part 21 and the shell 11 are fixedly connected by the third screw, thereby improving the connection performance between the insulating part 21 and the shell 11, thereby further improving the reliability of the testing device 20.

[0072] Please refer to Figure 1-Figure 16 In one embodiment, the second surface 21b is provided with a glue pouring groove 214, and the second end 222 passes through the bottom of the glue pouring groove 214, and the glue pouring groove 214 is used to accommodate sealant, and the sealant is used to seal the second end 222 and the insulating member 21.

[0073] A glue potting groove 214 is recessed on the second surface 21b of the insulating member 21, and a sealant is provided in the glue potting groove 214. The sealant seals the second end 222 of the bottom of the glue potting groove 214 to avoid a gap between the second end 222 and the insulating member 21, so that a sealing body is formed between the insulating member 21 and the connecting member 22, thereby improving the sealing performance of the housing 11 when the testing device 20 is fixed to the housing 11.

[0074] Please refer to Figure 1-Figure 16 In one embodiment, the insulating member 21 and the connecting member 22 are integrally formed structural members.

[0075] During the preparation process, the insulating part 21 and the connecting part 22 are injection molded together, so that the insulating part 21 and the connecting part 22 are an integrally formed structural part, thereby forming a sealing body between the insulating part 21 and the connecting part 22, thereby improving the sealing performance of the shell 11 when the test device 20 is fixed to the shell 11.

[0076] Please refer to Figure 1-Figure 16 In one embodiment, the connector 22 includes a positive connector 22a and a negative connector 22b that are spaced apart, the first end 221 of the positive connector 22a is used to connect the positive electrode of the input terminal 12, and the first end 221 of the negative connector 22b is used to connect the negative electrode of the input terminal 12.

[0077] Optionally, the testing device 20 includes a positive electrode identification portion 215 and a negative electrode identification portion 216 both disposed on the second surface 21b, the positive electrode identification portion 215 being located on a side of the positive electrode connector 22a away from the negative electrode connector 22b, and the negative electrode identification portion 216 being located on a side of the negative electrode connector 22b away from the positive electrode connector 22a. Optionally, a stopper 217 is further disposed between the positive electrode connector 22a and the negative electrode connector 22b.

[0078] The first ends 221 of the positive connector 22a and the negative connector 22b each have a first connection hole 2211, and the second ends 222 of the positive connector 22a and the negative connector 22b are each provided with a connection line 223. For example, the second end 222 of the positive connector 22a is used to connect to the positive electrode of the test power supply, and the second end 222 of the negative connector 22b is used to connect to the negative electrode of the test power supply.

[0079] In summary, the test device 20 provided in the present application can not only truly test the actual use conditions of the battery system 1, but also conduct a long-term life electrical performance test on the battery system 1 under high temperature and high humidity, or high and low temperature interaction conditions. It is also possible to conduct an electrical performance test on the battery system 1 and an airtight test on the inside of the housing 11 of the power module 10, avoiding the need to replace tooling for the two tests and improving production efficiency.

[0080] The present application also provides a battery system, which includes a power module, a test power supply, and a test device as provided above in the present application, wherein the insulating component of the test device is fixed to the housing of the power module, and the connecting component of the test device is connected to the input end of the power module and also connected to the test power supply.

[0081] The battery system provided in this embodiment adopts the test device provided in the above application to fix the insulating part on the power module, and the input end of the power module and the test power supply are electrically connected by connecting to the connecting parts respectively, thereby avoiding the problem of large installation size tolerance when the test power supply and the power module are directly connected, and effectively reducing the conductive impedance of the two caused by the installation stress. The test device can cooperate with the power module and the test power supply to perform various tests, thereby improving the accuracy of the test results.

[0082] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A testing device, characterized in that: Applicable to a power module in a battery system, the test device comprising: An insulating member, used for being fixed to a housing of the power module; A connecting member passes through the insulating member, wherein the first end and the second end of the connecting member are opposite to each other and both protrude from the insulating member, the first end is provided with a first connecting hole, the first connecting hole is used to connect to the input end of the power module, and the second end is provided with a connecting wire, the connecting wire is used to connect to a test power supply.

2. The testing device according to claim 1, characterized in that: The insulating member includes a first surface and a second surface facing each other, the first end passes through the first surface, the second end passes through the second surface, the extension direction of the first end is parallel to the extension direction of the input end, and the first end and the second end are arranged at an angle.

3. The testing device according to claim 2, characterized in that: The second end is provided with a second connecting hole, and the testing device also includes an anti-slip nut embedded in the second surface, and a first screw for fixing the connecting line, the anti-slip nut corresponds to the second connecting hole, and the first screw passes through the second connecting hole and is threadedly connected to the anti-slip nut.

4. The testing device according to claim 2, characterized in that: The first surface is provided with a boss, and the boss is used to be inserted into the shell. The first end passes through the top surface of the boss, and the peripheral side of the boss is provided with a first mounting hole. The connecting member is provided with a second mounting hole corresponding to the first mounting hole, and the first mounting hole and the second mounting hole are used to accommodate a second screw connecting the insulating member and the connecting member.

5. The testing device according to claim 4, characterized in that: The testing device further comprises a sealing ring, which is arranged at the connection between the insulating member and the housing, and the first surface is provided with an annular groove arranged around the boss, and the annular groove is used to accommodate at least part of the sealing ring.

6. The testing device according to claim 2, characterized in that: The insulating member is provided with a third mounting hole penetrating through the first surface and the second surface, and the third mounting hole is used to accommodate a third screw connecting the insulating member and the housing.

7. The testing device according to claim 2, characterized in that: The second surface is provided with a glue pouring groove, the second end passes through the bottom of the glue pouring groove, the glue pouring groove is used to accommodate sealant, and the sealant is used to seal the second end and the insulating member.

8. The testing device according to claim 1, characterized in that: The insulating member and the connecting member are integrally formed structural members.

9. The testing device according to claim 1, characterized in that: The connector includes a positive connector and a negative connector that are spaced apart. The first end of the positive connector is used to connect the positive electrode of the input end, and the first end of the negative connector is used to connect the negative electrode of the input end.

10. A battery system, characterized in that: The battery system includes a power module, a test power supply, and a test device as described in any one of claims 1-9, wherein the insulating member of the test device is fixed to the housing of the power module, and the connecting member of the test device is connected to the input end of the power module and also connected to the test power supply.

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