Wire harness sampling structure, battery module, battery pack, and vehicle

Abstract

The utility model provides a kind of wiring harness sampling structure, battery module, battery pack and vehicle, it is related to vehicle technical field.Wiring harness sampling structure includes wiring harness isolation plate, multiple busbars, sampling harness group and multiple positioning supports, multiple busbars are spaced apart on wiring harness isolation plate along the length direction of wiring harness isolation plate;Sampling harness group includes multiple sampling harness, each busbar is connected with at least one sampling harness, multiple positioning supports are all installed on wiring harness isolation plate, and are spaced apart arrangement along the length direction of wiring harness isolation plate, sampling harness is clamped on positioning support.The wiring harness sampling structure can position sampling harness on wiring harness isolation plate by multiple positioning supports, provide stable support fixing for sampling harness, improve sampling accuracy, avoid mechanical damage, and can reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a wiring harness sampling structure, a battery module, a battery pack, and a vehicle. Background Technology

[0002] In the production of battery modules, wire harness sampling is a key step in achieving battery status monitoring.

[0003] Among the relevant technologies, one approach is to sample the battery using a flexible circuit board, which has high material costs; another approach is to integrally form a positioning structure on the wire harness isolation plate to position the sampling wire harness, but the positioning structure is not strong enough to provide good support and fixation for the sampling wire harness, thus affecting the sampling accuracy. Utility Model Content

[0004] In view of the above problems, this utility model provides a wire harness sampling structure, which can position the sampling wire harness on the wire harness isolation plate through multiple positioning brackets, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, avoiding mechanical damage, and reducing costs.

[0005] In a first aspect, according to the wire harness sampling structure of the present application embodiment, the wire harness sampling structure includes a wire harness isolation plate, multiple busbars, a sampling wire harness group, and multiple positioning brackets. The multiple busbars are spaced apart on the wire harness isolation plate along the length direction of the wire harness isolation plate. The sampling wire harness group includes multiple sampling wire harnesses, each busbar is connected to at least one sampling wire harness, and the multiple positioning brackets are all installed on the wire harness isolation plate and spaced apart along the length direction of the wire harness isolation plate. The sampling wire harnesses are clamped on the positioning brackets.

[0006] According to the wire harness sampling structure of the present application embodiment, the sampling wire harness can be positioned on the wire harness isolation plate by multiple positioning brackets, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, avoiding mechanical damage, and reducing costs.

[0007] In some embodiments, the positioning bracket includes a plate portion and an elastic buckle portion. The plate portion is mounted on the wire harness isolation plate, one end of the elastic buckle portion is fixedly connected to the plate portion, and the sampling wire harness is snapped between the plate portion and the elastic buckle portion.

[0008] In the above embodiments, the sampling harness can be positioned, providing stable support and fixation for the sampling harness, improving sampling accuracy, and avoiding mechanical damage.

[0009] In some embodiments, the elastic latching portion includes a first portion, a second portion, and a third portion connected in sequence. The end of the first portion away from the second portion is connected to the plate portion. The second portion is disposed opposite to the plate portion and forms a limiting gap with the plate portion. The sampling wire harness is latched in the limiting gap. The third portion protrudes from the side of the second portion facing the plate portion and is configured to restrict the sampling wire harness from leaving the limiting gap.

[0010] In the above embodiments, the sampling harness can be positioned, providing stable support and fixation for the sampling harness, improving sampling accuracy, and avoiding mechanical damage.

[0011] In some embodiments, the plate body is provided with a mounting hole, and the wire harness isolation plate is provided with a mounting post. The mounting post includes a post body and a limiting part. One end of the post body is connected to the wire harness isolation plate, and the other end is connected to the limiting part. The post body passes through the mounting hole, and the limiting part is located on the side of the plate body facing away from the wire harness isolation plate.

[0012] In the above embodiments, the installation strength of the positioning bracket can be improved, and it can better provide support and fixation for the sampling harness.

[0013] In some embodiments, the mounting post and the wire harness isolation plate are integrally formed.

[0014] In the above embodiments, the structural strength of the wire harness isolation plate is further improved, thereby increasing the connection strength with the positioning bracket and providing better support and fixation for the sampling wire harness.

[0015] In some embodiments, the minimum thickness of the elastic snap-fit ​​portion is greater than the maximum thickness of the wire harness isolation plate.

[0016] In the above embodiments, the elastic buckle portion includes a first part, a second part, and a third part. The minimum thickness of at least one of the first part, the second part, and the third part is greater than the maximum thickness of the wire harness isolation plate. Thus, the structural strength of the elastic buckle portion can be greater than the structural strength of the wire harness isolation plate, providing good support and fixing performance for the sampling wire harness.

[0017] In some embodiments, the wire harness isolation plate is a vacuum-formed part, and the positioning bracket is an injection-molded part.

[0018] In the above embodiments, the wire harness isolation plate is a vacuum-formed part, which is lightweight, low-cost, and provides insulation. To improve the support and fixation performance of the sampling wire harness, the positioning bracket is an injection-molded part and is mounted on the wire harness isolation plate, thereby enhancing the support and fixation performance of the sampling wire harness. Furthermore, the minimum thickness of the positioning bracket can be greater than the maximum thickness of the wire harness isolation plate.

[0019] In some embodiments, the plurality of sampling harnesses includes a first harness, and the sampling harness group further includes a voltage sampling unit connected to the first harness and welded to a busbar; the voltage sampling unit has a positioning protrusion, the busbar has a positioning hole, the positioning protrusion is engaged in the positioning hole and forms a positioning fit with the positioning hole.

[0020] In the above embodiments, welding precision can be improved, thereby improving the accuracy of voltage signal sampling.

[0021] In some embodiments, the voltage sampling unit includes a sampling nickel sheet, which is partially bent to form a positioning protrusion.

[0022] In the above embodiments, the nickel sheet has low cost, good sampling reliability, and resistance to electrochemical corrosion; furthermore, the sampling nickel sheet is partially bent to form a positioning protrusion, which has a simple structure and good positioning performance. The sampling nickel sheet can also be brazed to the busbar to improve connection stability.

[0023] In some embodiments, the positioning hole is configured to be polygonal.

[0024] In the above embodiments, the positioning hole and the positioning protrusion can form a positioning fit, which improves the welding accuracy and thus improves the accuracy of voltage signal sampling.

[0025] In some embodiments, the plurality of sampling harnesses includes a second harness, and the sampling harness group further includes a temperature sampling unit and a mounting base. The temperature sampling unit is connected to the second harness, the mounting base has a mounting cavity, the temperature sampling unit is accommodated in the mounting cavity, and the mounting base is welded to the busbar.

[0026] In the above embodiments, the mounting base can provide good installation stability for the temperature sampling unit, preventing the temperature sampling unit from falling off the bus after a long period of time, and improving the reliability of temperature signal sampling.

[0027] In some embodiments, the mounting base includes a sleeve portion and a fin portion, the sleeve portion having a mounting cavity, the fin portion being connected to the outer peripheral surface of the sleeve portion, and the fin portion being welded to the busbar.

[0028] In the above embodiments, the installation stability of the temperature sampling unit can be improved. In some embodiments, thermally conductive adhesive is provided between the outer surface of the temperature sampling unit and the cavity wall of the mounting cavity.

[0029] In the above embodiments, the adhesive properties of the thermally conductive adhesive can further improve the installation strength between the temperature sampling unit and the sleeve, and the thermal conductivity of the thermally conductive adhesive can also improve the temperature sampling accuracy of the temperature sampling unit.

[0030] In a second aspect, the battery module according to the embodiments of this application includes the wiring harness sampling structure of the foregoing embodiments.

[0031] In a third aspect, the battery pack according to the embodiments of this application includes the battery module of the foregoing embodiments.

[0032] In a fourth aspect, the vehicle according to an embodiment of this application includes the battery pack of the foregoing embodiments.

[0033] Other features and advantages disclosed in this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described technology disclosed in this application.

[0034] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0035] 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: Figure 1 This is a schematic diagram of the wire harness sampling structure in some embodiments of this application.

[0036] Figure 2 yes Figure 1 A partial enlarged view of Part A of Example 1.

[0037] Figure 3 yes Figure 1 A partial enlarged view of Part B of Example 1.

[0038] Figure 4 This is a side view of the wire harness sampling structure in some embodiments of this application.

[0039] Figure 5 This is a partial schematic diagram (end) of the wire harness sampling structure in some embodiments of this application.

[0040] Figure 6 This is a partial schematic diagram (center) of the wire harness sampling structure in some embodiments of this application.

[0041] Figure 7 This is a partial schematic diagram of the wire harness sampling structure in some embodiments of this application (mainly showing the voltage sampling unit).

[0042] Figure 8This is a partial schematic diagram of the wire harness sampling structure in some embodiments of this application (mainly showing the voltage sampling unit and the temperature sampling unit).

[0043] Figure 9 This is a partial schematic diagram of the wire harness sampling structure in some embodiments of this application (mainly showing the limiting cooperation between the voltage sampling unit and the bus).

[0044] Figure 10 This is a partial schematic diagram of the wire harness sampling structure in some embodiments of this application (mainly showing the positioning bracket).

[0045] Figure 11 This is a front view of the wire harness sampling structure in some embodiments of this application.

[0046] Figure 12 This is a cross-sectional view of the wire harness sampling structure in some embodiments of this application.

[0047] Figure 13 This is an assembly diagram of the second wiring harness, temperature sampling unit, and mounting base in some embodiments of this application.

[0048] Figure 14 This is an exploded view of the wire harness sampling structure in some embodiments of this application.

[0049] The reference numerals in the detailed embodiments are as follows: The components include: a wire harness sampling structure 100, a wire harness isolation plate 10, a mounting post 11, a busbar 20, a positioning hole 21, a positioning bracket 30, a plate body 31, an elastic buckle part 32, a first part 321, a second part 322, a third part 323, a limiting gap 324, a sampling wire harness group 40, a first wire harness 41, a voltage sampling unit 42, a positioning protrusion 421, a second wire harness 43, a temperature sampling unit 44, a mounting base 45, a sleeve part 451, a fin part 452, a low-voltage connector 50, a voltage output pole 60, and a wire harness protective sleeve 70. Detailed Implementation

[0050] 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.

[0051] In the production of battery modules, wire harness sampling is a key step in achieving battery status monitoring.

[0052] Among the relevant technologies, one approach is to sample the battery using a flexible circuit board, which has high material costs; another approach is to integrally form a positioning structure on the wire harness isolation plate to position the sampling wire harness, but the positioning structure is not strong enough to provide good support and fixation for the sampling wire harness, thus affecting the sampling accuracy.

[0053] Based on this, the present invention provides a wire harness sampling structure 100, which can position the sampling wire harness on the wire harness isolation plate 10 through multiple positioning brackets 30, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, avoiding mechanical damage, and reducing costs.

[0054] Please refer to Figures 1 to 14 According to the embodiment of this application, the wire harness sampling structure 100 includes a wire harness isolation plate 10, multiple busbars 20, a sampling wire harness group 40, and multiple positioning brackets 30.

[0055] The wire harness isolation plate 10 can be understood as an insulating partition, which is provided with a high-voltage area and a low-voltage area. A busbar 20 can be installed in the high-voltage area, and a sampling wire harness can be installed in the low-voltage area, thereby ensuring a safe power distance.

[0056] Multiple busbars 20 can be spaced apart on the wire harness isolation plate 10 along its length direction. Multiple battery cells can be stacked along the length direction of the wire harness isolation plate 10. In this way, the multiple busbars 20 can connect the multiple battery cells in series or in parallel to realize the electrical connection between the multiple battery cells.

[0057] The sampling harness group 40 includes multiple sampling harnesses, with each bus 20 connected to at least one sampling harness. This enables sampling of the battery cell, such as voltage and temperature sampling. One end of each sampling harness is connected to a low-voltage connector 50, which can be connected to the battery management module to transmit the low-voltage acquisition signal to the battery management module. A harness protective sleeve 70 is fitted over one end of each sampling harness to protect it.

[0058] Multiple sampling harnesses need to be positioned on the harness isolation plate 10 to prevent mechanical damage and insufficient sampling accuracy caused by shaking of the sampling harnesses during vehicle movement. Furthermore, according to relevant technologies, the one-piece positioning structure of the harness isolation plate 10 lacks sufficient strength.

[0059] Therefore, the wire harness sampling structure 100 in this embodiment of the application also includes a plurality of positioning brackets 30. The plurality of positioning brackets 30 are all installed on the wire harness isolation plate 10 and are arranged at intervals along the length direction of the wire harness isolation plate 10. The sampling wire harness is clamped on the positioning brackets 30. In this way, the sampling wire harness can be positioned on the wire harness isolation plate 10 by the plurality of positioning brackets 30, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, avoiding mechanical damage, and reducing costs.

[0060] Please refer to Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 9 and Figure 10 In some embodiments of this application, the positioning bracket 30 includes a plate portion 31 and an elastic buckle portion 32. The plate portion 31 is installed on the wire harness isolation plate 10, and one end of the elastic buckle portion 32 is fixedly connected to the plate portion 31. The sampling wire harness is clamped between the plate portion 31 and the elastic buckle portion 32. In this way, the positioning of the sampling wire harness can be realized, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, and avoiding mechanical damage.

[0061] For example, along the thickness direction of the wire harness isolation plate 10, the plate body portion 31 is stacked on the wire harness isolation plate 10 and installed on the wire harness isolation plate 10 to increase the connection area between the plate body portion 31 and the wire harness isolation plate 10 and improve the connection strength. The plate body portion 31 and the wire harness isolation plate 10 can be connected and fixed by a hot riveting post structure to further improve the connection strength.

[0062] In addition, the elastic latching part 32 has two opposite ends. One end of the elastic latching part 32 is a fixed end, which is fixedly connected to the plate part 31. The other end is a free end. Technicians can drive the free end away from the plate part 31 so that the sampling wire harness can pass through the gap between the free end and the plate part 31 and be placed between the plate part 31 and the elastic latching part 32. After the driving of the free end is canceled by technical means, the free end approaches the plate part 31 to restrict the sampling structure from coming out of the gap between the free end and the plate part 31, and the sampling wire harness is locked between the plate part 31 and the elastic latching part 32 to achieve the fixed positioning of the sampling wire harness.

[0063] It should be explained that the elastic latching part 32 can be understood as the latching part itself being elastic, or it can be understood as the latching part being connected to the plate part 31 through an elastic element. In some specific examples, the plate part 31 and the elastic latching part 32 are integrally formed to further improve the structural strength of the positioning bracket 30, thereby improving the positioning effect on the sampling wire harness.

[0064] Please refer to Figure 12 In some embodiments of this application, the elastic latch portion 32 includes a first portion 321, a second portion 322, and a third portion 323 connected in sequence.

[0065] The first part 321 is connected to the plate body 31 at the end away from the second part 322. The second part 322 is disposed opposite to the plate body 31 and forms a limiting gap 324 between them. The sampling wire harness is locked in the limiting gap 324. The third part 323 protrudes from the side of the second part 322 facing the plate body 31. The third part 323 is configured to restrict the sampling wire harness from leaving the limiting gap 324. In this way, the sampling wire harness can be positioned, providing stable support and fixation for the sampling wire harness, improving sampling accuracy, and avoiding mechanical damage.

[0066] For example, the first portion 321 and the third portion 323 can both extend along the thickness direction of the wire harness isolation plate 10, and the second portion 322 extends along the width direction of the wire harness isolation plate 10. The first portion 321 connects to the plate body portion 31, and the second portion 322 connects the first portion 321 and the third portion 323, forming a limiting gap 324 between the second portion 322 and the plate body portion 31. The sampling wire harness can be locked in the limiting gap 324 to achieve positioning of the sampling wire harness. Furthermore, since the third portion 323 protrudes from the side of the second portion 322 facing the plate body portion 31, the minimum distance between the third portion 323 and the plate body portion 31 is less than the limiting gap 324. Thus, the third portion 323 can restrict the sampling wire harness from coming out of the limiting gap 324, improving the positioning stability of the sampling wire harness.

[0067] It should also be understood that at least one of the first part 321, the second part 322 and the third part 323 may be constructed as an elastic structure, and / or the first part 321 may be connected to the plate part 31 by an elastic element, and the second part 322 may be connected to the first part 321 and the third part 323 by elastic elements respectively.

[0068] The specific installation process of the sampling harness is as follows: The technician drives the third part 323 away from the plate part 31. The sampling wire can extend into the limiting gap 324 through the gap between the third part 323 and the plate part 31. Then the technician can cancel the driving of the third part 323. The third part 323 can approach the plate part 31 under the action of elastic force. After resetting, the minimum gap between the third part 323 and the plate part 31 is less than the limiting gap 324, thereby stably locking the sampling wire in the limiting gap 324.

[0069] In addition, in some specific examples, a positioning groove is provided on the side of the plate body 31 facing the elastic buckle part 32. The third part 323 of the elastic buckle part 32 can be locked in the positioning groove to further improve the restriction effect of the third part 323 on the sampling wire harness and prevent the sampling wire harness from coming out through the third part 323, which would affect the sampling accuracy of the sampling wire harness.

[0070] Please refer to Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 9 , Figure 10 and Figure 12In some embodiments of this application, the plate body 31 is provided with mounting holes, and the wire harness isolation plate 10 is provided with mounting posts 11. The mounting post 11 includes a post body and a limiting part. One end of the post body is connected to the wire harness isolation plate 10, and the other end is connected to the limiting part. The post body passes through the mounting holes, and the limiting part is located on the side of the plate body 31 facing away from the wire harness isolation plate 10. In this way, the installation strength of the positioning bracket 30 can be improved, and it can better provide support and fixation for the sampling wire harness.

[0071] For example, the plate body 31 and the wire harness isolation plate 10 can be connected by thermal riveting. Specifically, the plate body 31 is provided with mounting holes, and the wire harness isolation plate 10 is provided with mounting posts 11. The mounting posts 11 can be inserted into the mounting holes first, and then the mounting posts 11 are melted to form a structure including a post body and a limiting part. The post body is inserted into the mounting holes, and the limiting part is located on the side of the plate body 31 facing away from the wire harness isolation plate 10. In this way, the limiting part can restrict the plate body 31 from coming off the mounting post 11, improve the installation strength between the plate body 31 and the wire harness isolation plate 10, and better provide support and fixation for the sampling wire harness.

[0072] In some embodiments of this application, the mounting post 11 is integrally formed with the wire harness isolation plate 10 to further improve the structural strength of the wire harness isolation plate 10, thereby improving the connection strength with the positioning bracket 30 and providing better support and fixation for the sampling wire harness.

[0073] Based on the aforementioned related technologies, the inventors discovered that the reason why the positioning structure integrally formed by the wire harness isolation plate has insufficient structural strength is that the wire harness isolation plate is relatively thin, and the thickness of the positioning structure integrally formed by it is also relatively thin, making it difficult to provide good support and fixation performance for the sampling wire harness.

[0074] Based on this, in some embodiments of this application, the minimum thickness of the elastic latching portion 32 is greater than the maximum thickness of the wire harness isolation plate 10. It is understood that the elastic latching portion 32 includes a first portion 321, a second portion 322, and a third portion 323, and the minimum thickness of at least one of the first portion 321, the second portion 322, and the third portion 323 is greater than the maximum thickness of the wire harness isolation plate 10. Thus, the structural strength of the elastic latching portion 32 can be greater than the structural strength of the wire harness isolation plate 10, and can provide good support and fixing performance for the sampling wire harness.

[0075] Based on the aforementioned related technologies, the inventors further discovered that the wire harness isolation plate is made using a vacuum forming process, and the positioning structure on the wire harness isolation plate used to position the sampling wire harness is also made using a vacuum forming process. Due to process limitations, its structure is relatively thin.

[0076] Based on this, in some embodiments of this application, the wire harness isolation plate 10 is a vacuum-formed part, and the positioning bracket 30 is an injection-molded part. It is understood that in this embodiment, the wire harness isolation plate 10 is a vacuum-formed part, which is lighter, lower in cost, and can achieve insulation. To improve the support and fixation performance of the sampling wire harness, the positioning bracket 30 is an injection-molded part and is installed on the wire harness isolation plate 10, thereby improving the support and fixation performance of the sampling wire harness. Furthermore, the minimum thickness of the positioning bracket 30 can be greater than the maximum thickness of the wire harness isolation plate 10.

[0077] Please refer to Figures 1 to 12 In some embodiments of this application, in order to sample the voltage signal of the battery cell, multiple sampling harnesses include a first harness 41, and the sampling harness group 40 further includes a voltage sampling unit 42. The voltage sampling unit 42 is connected to the first harness 41 and welded to the bus 20, thereby realizing the sampling of the voltage signal of the battery cell.

[0078] However, in the welding process between the voltage sampling unit 42 and the bus 20, the welding precision of the voltage sampling unit 42 and the bus 20 was insufficient, which affected the accuracy of voltage signal sampling.

[0079] Therefore, in the embodiments of this application, the voltage sampling unit 42 has a positioning protrusion 421, and the bus 20 has a positioning hole 21. The positioning protrusion 421 is engaged in the positioning hole 21 and forms a positioning fit with the positioning hole 21. It can be understood that the shape of the positioning protrusion 421 can be constructed as a polygon, and the shape of the positioning hole 21 can also be constructed as a polygon and adapted to the shape of the positioning protrusion 421. When the positioning protrusion 421 is engaged in the positioning hole 21, the positioning protrusion 421 and the positioning hole 21 form a positioning fit so that the relative position between the positioning protrusion 421 and the positioning hole 21 remains unchanged. In this way, the relative position between the voltage sampling unit 42 and the bus 20 also remains unchanged. On this basis, welding the voltage sampling unit 42 and the bus 20 together can improve the welding accuracy, thereby improving the accuracy of voltage signal sampling.

[0080] Please refer to Figure 8 In some embodiments of this application, the voltage sampling unit 42 includes a sampling nickel sheet. The nickel sheet is low in cost, has good sampling reliability, and is resistant to electrochemical corrosion. Furthermore, the sampling nickel sheet is partially bent to form a positioning protrusion 421, which has a simple structure and good positioning performance. The sampling nickel sheet can also be brazed to the busbar 20 to improve connection stability.

[0081] Please refer to Figure 9 In some embodiments of this application, the positioning hole 21 is constructed as a polygon, and the positioning protrusion 421 is also constructed as a polygon, so that the positioning hole 21 and the positioning protrusion 421 can form a positioning fit, improve the welding accuracy, and thus improve the accuracy of voltage signal sampling.

[0082] Please refer to Figures 1 to 12 In some embodiments of this application, in order to sample the temperature signal of the battery cell, multiple sampling harnesses include a second harness 43, and the sampling harness group 40 further includes a temperature sampling unit 44, which is connected to the second harness 43, thereby realizing the sampling of the temperature signal of the battery cell.

[0083] However, the temperature sampling unit 44 is generally attached to the busbar 20 by adhesive bonding, which has low durability. After long-term use, the temperature sampling unit 44 will fall off the busbar 20, affecting the accuracy of temperature signal sampling.

[0084] Therefore, in the embodiments of this application, the sampling harness group 40 further includes a mounting base 45, which has a mounting cavity in which the temperature sampling unit 44 is accommodated. The mounting base 45 is welded to the bus 20. It can be understood that the temperature sampling unit 44 is installed in the mounting cavity of the mounting base 45 to achieve stable assembly, and the mounting base 45 is welded to the bus 20 to realize the installation and assembly of the temperature sampling unit 44 on the bus 20. The temperature sampling unit 44 can sample the temperature signal of the bus 20 with the help of the mounting base 45, and the mounting base 45 can provide good installation stability for the temperature sampling unit 44, preventing the temperature sampling unit 44 from falling off the bus 20 after a long period of time, and improving the reliability of temperature signal sampling.

[0085] Further, please refer to Figure 3 , Figure 6 , Figure 8 and Figure 13 In some embodiments of this application, the mounting base 45 includes a sleeve portion 451 and a fin portion 452. The sleeve portion 451 has a mounting cavity, the fin portion 452 is connected to the outer peripheral surface of the sleeve portion 451, and the fin portion 452 is welded to the busbar 20. In this way, the installation stability of the temperature sampling unit 44 can be improved.

[0086] For example, the temperature sampling unit 44 can be configured as a waterdrop temperature sensor. The waterdrop temperature sensor can be disposed within the mounting cavity, i.e., the sleeve portion 451 is fitted onto the outside of the waterdrop temperature sensor to ensure a stable connection between the waterdrop temperature sensor and the sleeve portion 451. A fin portion 452 is connected to the outer peripheral surface of the sleeve portion 451. The fin portion 452 can be stacked on the busbar 20 along the thickness direction of the wire harness isolation plate 10 to increase the connection area between the fin portion 452 and the busbar 20. Subsequently, the fin portion 452 is welded to the busbar 20 to improve the connection strength between the fin portion 452 and the busbar 20, thereby improving the installation stability of the temperature sampling unit 44. The waterdrop temperature sensor can sample the temperature signal of the battery cell using the sleeve portion 451, the fin portion 452, and the busbar 20, improving the accuracy of temperature sampling.

[0087] Furthermore, in some embodiments of this application, a thermally conductive adhesive is provided between the outer surface of the temperature sampling unit 44 and the cavity wall of the mounting cavity. In this way, the bonding performance of the thermally conductive adhesive can further improve the installation strength between the temperature sampling unit 44 and the sleeve portion 451, and the conductivity of the thermally conductive adhesive can also improve the temperature sampling accuracy of the temperature sampling unit 44.

[0088] According to the battery module of this application embodiment, the battery module includes the wiring harness sampling structure 100 of the aforementioned embodiment. By applying the wiring harness sampling structure 100 of the aforementioned embodiment, the sampling accuracy of the battery module can be improved. One of the plurality of busbars 20 has a voltage output terminal 60, which can serve as the voltage output terminal 60 of the battery module for electrical connection with other battery modules.

[0089] According to the battery pack of the present application embodiment, the battery pack includes the wiring harness sampling structure 100 of the foregoing embodiment. By applying the battery module of the foregoing embodiment, the operating performance of the battery pack is improved due to the improved sampling accuracy.

[0090] According to an embodiment of this application, the vehicle includes the battery pack of the aforementioned embodiment, and by applying the battery pack of the aforementioned embodiment, the driving performance of the vehicle can be improved.

[0091] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0092] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0093] In all embodiments of this application, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.

[0094] It should be understood that the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0095] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0096] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A wire harness sampling structure, characterized in that, include: Wire harness isolation plate (10); Multiple busbars (20) are spaced apart on the wire harness isolation plate (10) along the length direction of the wire harness isolation plate (10); The sampling harness group (40) includes a plurality of sampling harnesses, each of the busbars (20) being connected to at least one of the sampling harnesses; Multiple positioning brackets (30) are installed on the wire harness isolation plate (10) and are arranged at intervals along the length direction of the wire harness isolation plate (10). The sampling wire harness is clamped on the positioning bracket (30).

2. The wire harness sampling structure according to claim 1, characterized in that, The positioning bracket (30) includes a plate part (31) and an elastic buckle part (32). The plate part (31) is installed on the wire harness isolation plate (10). One end of the elastic buckle part (32) is fixedly connected to the plate part (31). The sampling wire harness is clamped between the plate part (31) and the elastic buckle part (32).

3. The wire harness sampling structure according to claim 2, characterized in that, The elastic latching part (32) includes a first part (321), a second part (322), and a third part (323) connected in sequence. The first part (321) is connected to the plate part (31) at one end away from the second part (322). The second part (322) is disposed opposite to the plate part (31) and forms a limiting gap (324) with the plate part (31). The sampling wire harness is locked in the limiting gap (324). The third part (323) protrudes from the side of the second part (322) facing the plate part (31). The third part (323) is configured to restrict the sampling wire harness from leaving the limiting gap (324).

4. The wire harness sampling structure according to claim 2, characterized in that, The plate body (31) is provided with mounting holes, and the wire harness isolation plate (10) is provided with mounting posts (11). The mounting post (11) includes a post body and a limiting part. One end of the post body is connected to the wire harness isolation plate (10), and the other end is connected to the limiting part. The post body passes through the mounting holes, and the limiting part is located on the side of the plate body (31) away from the wire harness isolation plate (10).

5. The wire harness sampling structure according to claim 4, characterized in that, The mounting post (11) and the wire harness isolation plate (10) are integrally formed.

6. The wire harness sampling structure according to claim 2, characterized in that, The minimum thickness of the elastic buckle (32) is greater than the maximum thickness of the wire harness isolation plate (10).

7. The wire harness sampling structure according to any one of claims 1-6, characterized in that, The wire harness isolation plate (10) is a vacuum-formed part, and the positioning bracket (30) is an injection-formed part.

8. The wire harness sampling structure according to any one of claims 1-4, characterized in that, The plurality of sampling harnesses include a first harness (41), and the sampling harness group (40) further includes a voltage sampling unit (42), the voltage sampling unit (42) being connected to the first harness (41) and the voltage sampling unit (42) being welded to the bus (20); The voltage sampling unit (42) has a positioning protrusion (421), and the busbar (20) has a positioning hole (21). The positioning protrusion (421) is engaged in the positioning hole (21) and forms a positioning fit with the positioning hole (21).

9. The wire harness sampling structure according to claim 8, characterized in that, The voltage sampling unit (42) includes a sampling nickel sheet, which is partially bent to form a positioning protrusion (421); And / or, the shape of the positioning hole (21) is constructed as a polygon.

10. The wire harness sampling structure according to any one of claims 1-4, characterized in that, The plurality of sampling harnesses include a second harness (43), and the sampling harness group (40) further includes a temperature sampling unit (44) and a mounting base (45). The temperature sampling unit (44) is connected to the second harness (43), and the mounting base (45) has a mounting cavity in which the temperature sampling unit (44) is housed. The mounting base (45) is welded to the busbar (20).

11. The wire harness sampling structure according to claim 10, characterized in that, The mounting base (45) includes a sleeve portion (451) and a fin portion (452). The sleeve portion (451) has the mounting cavity. The fin portion (452) is connected to the outer peripheral surface of the sleeve portion (451). The fin portion (452) is welded to the busbar (20).

12. The wire harness sampling structure according to claim 10, characterized in that, Thermally conductive adhesive is provided between the outer surface of the temperature sampling unit (44) and the cavity wall of the mounting cavity.

13. A battery module, characterized in that, Includes the wire harness sampling structure according to any one of claims 1-12.

14. A battery pack, characterized in that, Includes the wire harness sampling structure according to claim 13.

15. A vehicle, characterized in that, Includes the battery pack according to claim 14.

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