Wiring device and battery testing system

Abstract

The utility model discloses a wiring device and a battery testing system, and relates to the technical field of battery testing. The wiring device comprises an insulation box and a conductive piece, at least one containing cavity is formed in the insulation box, the conductive piece is arranged in the containing cavity, the conductive piece is provided with a first end and a second end which are opposite, the first end is suitable for being connected with an equipment end wire harness, and the second end is suitable for being connected with a battery end wire harness and a test end wire harness. Therefore, two wire harness wiring points are respectively formed in the accommodating cavity, the defects that the wire harness wiring points are easy to heat, large in contact internal resistance and the like are overcome, and the stability and the reliability of connection are improved; and wiring points of the wire harnesses are positioned in the insulation box, so that external interference is avoided, and the probability of insulation failure and electric shock is reduced.

Description

Technical Field

[0001] This application belongs to the field of battery testing technology, specifically relating to a wiring device and a battery testing system. Background Technology

[0002] Power batteries are one of the core components of new energy vehicles, and their safety and stability are crucial to the power performance of electric vehicles. During the battery production process, it is necessary to test the battery's charge and discharge performance, internal resistance, and high and low temperature performance to provide accurate data support for vehicle performance simulation and debugging.

[0003] In related technologies, the wiring harness connection points between the testing equipment and the battery have defects such as easy overheating and high contact resistance, which can easily lead to insulation failure and electric shock risk. Utility Model Content

[0004] This application aims to provide a wiring device and a battery testing system that can solve the problems in related technologies, such as the wiring harness connection point between the testing equipment and the battery being prone to overheating and having high contact resistance, which can easily lead to insulation failure and electric shock risks.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a wiring device, comprising: an insulating box and a conductive element, wherein the insulating box has at least one receiving cavity, the conductive element is disposed within the receiving cavity, and the conductive element has a first end and a second end opposite to each other, the first end being adapted to connect a device-end wiring harness, and the second end being adapted to connect a battery-end wiring harness and a test-end wiring harness.

[0007] Optionally, the insulating box is provided with multiple independent receiving cavities, and each of the multiple receiving cavities is provided with a conductive element. The conductive elements in the multiple receiving cavities are used to connect wire harnesses of different conductivity types.

[0008] Optionally, the insulation box includes a box body, a box cover, and at least one partition. The box cover is connected to the box body to enclose and form a receiving space, and the partition is disposed within the receiving space to divide the receiving space into multiple independent receiving cavities.

[0009] Optionally, the box body is provided with a first snap-fit ​​part, and the box cover is provided with a second snap-fit ​​part, the first snap-fit ​​part and the second snap-fit ​​part snap-fit ​​together; and / or, the partition and the box body are integrally formed parts.

[0010] Optionally, the wiring device further includes a plurality of fixing members, with the fixing members respectively provided at the first end and the second end. The fixing members are movably connected to the conductive member, and a clamping space for clamping the wire harness is formed between the fixing members and the conductive member. The fixing members can move relative to the conductive member to adjust the size of the clamping space.

[0011] Optionally, the fixing member includes a first connector and a second connector. One end of the first connector is connected to the insulating box, and the other end passes through the conductive member and is at least partially exposed on the conductive member. The second connector is screwed to the other end of the first connector. The second connector can move relative to the conductive member to adjust the size of the clamping space.

[0012] Optionally, the receiving cavity has wire-passing holes on its sidewalls facing the first end and the second end, one of which is used for the device-end wire harness and the test-end wire harness to pass through, and the other is used for the battery-end wire harness to pass through.

[0013] Optionally, the insulating box has a protrusion at a position corresponding to the conductive element, and the conductive element is fixed on the protrusion.

[0014] Optionally, the insulating box is provided with a plurality of heat dissipation holes at intervals, and the plurality of heat dissipation holes are in communication with the receiving cavity.

[0015] Secondly, embodiments of this application propose a battery testing system, including: a device-end wiring harness, a battery-end wiring harness, a test-end wiring harness, and a wiring device as described in any of the above, wherein the device-end wiring harness is connected to the first end, and the battery-end wiring harness and the test-end wiring harness are respectively connected to the second end.

[0016] In the embodiments of this application, the wiring device includes an insulating box and a conductive component. The insulating box has at least one receiving cavity, and the conductive component is disposed within the receiving cavity. The conductive component has a first end and a second end opposite to each other. The first end is adapted to connect to the device-end wiring harness, and the second end is adapted to connect to the battery-end wiring harness and the test-end wiring harness. This forms two wiring harness connection points within the receiving cavity, eliminating defects such as easy overheating and high contact resistance at wiring harness connection points, thus improving the stability and reliability of the connection. Furthermore, since the wiring harness connection points are located within the insulating box, they are protected from external interference, reducing the probability of insulation failure and electric shock.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of a wiring device according to an embodiment of this application;

[0020] Figure 2 This is an exploded view of the wiring device according to an embodiment of this application;

[0021] Figure 3 This is a partial structural schematic diagram of the wiring device according to an embodiment of this application;

[0022] Figure 4 This is a wiring diagram of the wiring device according to an embodiment of this application;

[0023] Figure 5 This is a partial wiring diagram of the wiring device according to an embodiment of this application.

[0024] Figure label:

[0025] 1: Insulation box; 10: Receiving cavity; 11: Wire hole; 12: Protrusion; 13: Heat dissipation hole; 14: Box body; 141: Receiving space; 142: First snap-fit ​​part; 15: Box cover; 151: Second snap-fit ​​part; 16: Partition; 2: Conductive component; 21: First end; 22: Second end; 3: Equipment end wiring harness; 4: Battery end wiring harness; 5: Test end wiring harness; 6: Fixing component; 61: First connector; 62: Second connector. Detailed Implementation

[0026] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Before explaining the wiring device and battery testing system provided in the embodiments of this application, the application scenarios of the wiring device and battery testing system provided in the embodiments of this application will be specifically described:

[0031] Currently, the connection point between the power battery test harness and the charging / discharging equipment harness is fixed by bolts, with only one connection point. This connection point is then insulated with electrical tape. When a large current continuously flows through the connection point, the high temperature generated can cause the insulation at the connection point to fail and the tape to wear through, posing a risk of electric shock. This method has low safety and reliability. Furthermore, there is no standardized connection method for the power battery test harness and the charging / discharging equipment harness. The differences in contact resistance and voltage acquisition result in inaccurate direct current resistance (DCR) test results and voltage values ​​for the power battery.

[0032] Therefore, this application provides a wiring device and a battery testing system. The wiring device and battery testing system provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the wiring device according to some embodiments of this application includes an insulating box 1 and a conductive element 2. The insulating box 1 is provided with at least one receiving cavity 10. The conductive element 2 is disposed in the receiving cavity 10. The conductive element 2 has a first end 21 and a second end 22 opposite to each other. The first end 21 is adapted to connect to the device end wiring harness 3, and the second end 22 is adapted to connect to the battery end wiring harness 4 and the test end wiring harness 5.

[0034] In this embodiment, the wiring device includes an insulating box 1 and a conductive element 2. The insulating box 1 has at least one receiving cavity 10, and the conductive element 2 is disposed within the receiving cavity 10. The conductive element 2 has a first end 21 and a second end 22 facing each other. The first end 21 is adapted to connect to the device-end wiring harness 3, and the second end 22 is adapted to connect to the battery-end wiring harness 4 and the test-end wiring harness 5. In this way, two wiring harness connection points are formed respectively within the receiving cavity 10, eliminating defects such as easy overheating and high contact resistance at the wiring harness connection points, and improving the stability and reliability of the connection. Furthermore, since the wiring harness connection points are located within the insulating box 1, they are protected from external interference, reducing the probability of insulation failure and electric shock.

[0035] In specific applications, the insulation box 1 can be a box with a receiving cavity 10 made of insulating material, such as at least one of plastic, rubber, glass, ceramic, etc. In actual processing, plastic can be selected for injection molding, which is more cost-effective and easier to process. The specific material of the insulation box 1 can be selected by those skilled in the art according to actual needs, and this application does not limit it in this regard.

[0036] It should be explained that the conductive element 2 is a conductive component used to electrically connect the device end wiring harness 3, the battery end wiring harness 4, and the test end wiring harness 5. Specifically, it can be any one of copper busbar, aluminum busbar, conductive strip, conductive sheet, etc. Those skilled in the art can set it according to actual needs, and this application does not limit it.

[0037] Understandably, the first end 21 and the second end 22 of the conductive element 2 can be respectively provided with structures that facilitate electrical connection with the device end wiring harness 3, the battery end wiring harness 4, and the test end wiring harness 5. For example, any one of the following can be provided at the first end 21 and the second end 22: threaded joint, clamp joint, crimp joint, etc. Those skilled in the art can make the settings according to actual needs, and this application does not limit them.

[0038] Understandably, the device-side wiring harness 3 and the first end 21 form a connection point at the first end 21, and the battery-side wiring harness 4 and the test-side wiring harness 5 and the second end 22 form another connection point at the second end 22. This avoids the defects of connecting all wiring harnesses to one connection point in related technologies, such as easy overheating and high contact resistance, and improves the stability and reliability of the connection. Moreover, both connection points are placed in the receiving cavity 10 of the insulation box 1 to avoid external interference and reduce the probability of insulation failure and electric shock.

[0039] It should be explained that both the battery-side wiring harness 4 and the test-side wiring harness 5 are connected to the second terminal 22, thereby improving the testing accuracy of the test-side wiring harness 5. In actual connection, the test-side wiring harness 5 and the battery-side wiring harness 4 form a direct connection, resulting in more accurate test values. In practical applications, the test-side wiring harness 5 can also be a wiring harness for acquiring battery voltage, thus directly connecting this harness to the battery-side wiring harness 4 yields more accurate battery voltage values.

[0040] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this application, the insulating box 1 is provided with a plurality of independent receiving cavities 10, and each of the plurality of receiving cavities 10 is provided with a conductive element 2. The conductive elements 2 in the plurality of receiving cavities 10 are respectively used to connect wire harnesses of different conductive types.

[0041] In this embodiment of the application, by setting multiple independent receiving cavities 10 in the insulating box 1, and setting a conductive element 2 in each of the multiple independent receiving cavities 10, wire harnesses of different conductivity types are connected in different receiving cavities 10, thereby reducing the possibility of short circuits and other situations of wire harnesses of different conductivity types, and further improving the safety of the wiring device.

[0042] It should be explained that the different conductivity types of wire harnesses specifically refer to the wire harnesses used to connect the positive terminal of the battery and the positive terminal of the device, as well as the wire harnesses used to connect the negative terminal of the battery and the negative terminal of the device. This reduces the possibility of short circuits between the positive and negative wire harnesses and improves the safety of the wiring device.

[0043] In practical applications, multiple receiving cavities 10 are provided, and each receiving cavity 10 is provided with a conductive element 2, thereby forming two connection points of one polarity in one receiving cavity 10. For example, two connection points of positive polarity are formed in one receiving cavity 10, and two connection points of negative polarity are formed in another receiving cavity 10. These two receiving cavities 10 are combined to form the wiring path of a battery. Multiple receiving cavities 10 can be combined in pairs or in groups of three according to actual needs, thereby forming wiring connections for multiple batteries. That is, a wiring device can simultaneously connect different batteries to test different batteries, etc., which improves the practicality and safety of the wiring device.

[0044] Understandably, the number of accommodating cavities 10 can be set to any number of 2, 3, 4, 5, 6, etc. Those skilled in the art can set it according to actual needs, and this application does not impose any restrictions on it.

[0045] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this application, the insulation box 1 includes a box body 14, a box cover 15 and at least one partition 16. The box cover 15 is connected to the box body 14 to enclose and form a receiving space 141. The partition 16 is disposed in the receiving space 141 to divide the receiving space 141 into a plurality of independent receiving cavities 10.

[0046] In this embodiment, the cover 15 is connected to the box body 14 to enclose and form a receiving space 141. The partition 16 is disposed in the receiving space 141, thereby dividing the receiving space 141 into multiple independent receiving cavities 10. This allows the wiring device to have multiple independent receiving cavities 10. Each receiving cavity 10 can be provided with a polarity electrical connection line, which increases the number of wires in the wiring device while ensuring the safety of the wiring device.

[0047] In specific applications, the cover 15 is detachably connected to the body 14. The detachable connection method includes, but is not limited to, at least one of the following: threaded connection, snap-fit ​​connection, pin connection, etc. Those skilled in the art can make the setting according to actual needs, and this application does not limit it.

[0048] Understandably, the partition 16 is disposed in the receiving space 141 and can be fixedly connected to the side wall of the housing 14 or detachably connected. Those skilled in the art can configure it according to their needs, and this application does not impose any limitations on this. The partition 16 divides the receiving space 141 into multiple independent receiving cavities 10. The number of partitions 16 can be one or more, thus dividing the space into different numbers of receiving cavities 10. For example, when one partition 16 is vertically disposed, the receiving space is divided into two independent receiving cavities 10 on the left and right; when two partitions 16 are disposed, one vertically and the other horizontally, i.e., the two partitions 16 are arranged in a "cross shape," the receiving space 141 is divided into four independent receiving cavities 10.

[0049] In specific applications, the number of partitions 16 can be set to any value such as 1, 2, 3, 4, 5, etc. Those skilled in the art can set it according to actual needs, and this application does not limit it.

[0050] Understandably, the shape of the multiple partitions 16 can be set according to actual needs, such as any shape such as "straight", "cross", "grid", "well", etc. Those skilled in the art can set it according to actual needs, and this application does not limit it.

[0051] It should be explained that the partition 16 and the box 14 can be integrally formed to facilitate processing, or they can be different parts to facilitate the operator to set the position of the partition 16 according to different operation requirements.

[0052] In some embodiments of this application, one side of the lid 15 is rotatably connected to the box body 14, and the other side of the lid 15 is detachably connected to the box body 14, thereby making it easy to transport and move the lid 15 and the box body 14, and making it easy for operators to open the lid 15 to carry out operations.

[0053] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this application, the partition 16 and the box 14 are integrally formed parts.

[0054] In this embodiment, by setting the partition 16 and the housing 14 as an integral molded part, it is easier to process and the cost of the wiring device is reduced.

[0055] Understandably, taking the insulation box 1 as an example of being made of plastic, the box body 14 and the partition 16 can be injection molded in one step, thereby reducing processing time and processing costs.

[0056] like Figure 1 and Figure 2As shown, in some embodiments of this application, the box body 14 is provided with a first snap-fit ​​part 142, and the box cover 15 is provided with a second snap-fit ​​part 151, and the first snap-fit ​​part 142 and the second snap-fit ​​part 151 are snapped together.

[0057] In this embodiment of the application, by providing a first snap-fit ​​part 142 on the housing 14 and a second snap-fit ​​part 151 on the cover 15, the first snap-fit ​​part 142 can snap into the second snap-fit ​​part 151, thereby facilitating the installation of the cover 15 on the housing 14 or its removal from the housing 14, and improving the convenience of the wiring device during operation.

[0058] In specific applications, the first latching portion 142 and the second latching portion 151 are different latching components that cooperate with each other. For example, the first latching portion 142 can be a slot, and the second latching portion 151 can be a latch, thus forming a latching connection. Alternatively, the first latching portion 142 can be a latch, and the second latching portion 151 can be a slot, thus forming a latching connection. Of course, the first latching portion 142 and the second latching portion 151 can also be other forms of latching connection structures, as long as the latching connection between the two is achieved. Those skilled in the art can set it according to actual needs, and this application does not limit it in this regard.

[0059] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of this application, the wiring device further includes a plurality of fixing members 6. Fixing members 6 are respectively provided at the first end 21 and the second end 22. The fixing members 6 are movably connected to the conductive member 2. A clamping space for clamping the wire harness is formed between the fixing members 6 and the conductive member 2. The fixing members 6 can move relative to the conductive member 2 to adjust the size of the clamping space.

[0060] In this embodiment, a fixing member 6 is provided at the first end 21 and the second end 22 respectively. The fixing member 6 is movably connected to the conductive member 2, and a clamping space for clamping the wire harness is formed between the fixing member 6 and the conductive member 2. The fixing member 6 can move relative to the conductive member 2 to adjust the size of the clamping space. Thus, when connecting the device end wire harness 3, the battery end wire harness 4, and the test end wire harness 5 to the first end 21 or the second end 22, the fixing member 6 can be adjusted to clamp the wire harness. This facilitates the connection of the wire harness to the first end 21 or the second end 22 and ensures the stability of the connection when the wire harness is connected to the first end 21 or the second end 22, thereby improving the connection stability of the wiring device.

[0061] In specific applications, the fastener 6 includes, but is not limited to, any one of bolts, nuts, clamps, etc. Those skilled in the art can set it according to their needs, and this application does not impose any restrictions on it.

[0062] Understandably, when connecting the wire harness to the first end 21 or the second end 22, the fixing member 6 is first moved away from the conductive member 2 to increase the clamping space, making it easier to connect the wire harness to the first end 21 or the second end 22; after the wire harness is connected, the fixing member 6 is moved closer to the conductive member 2 to decrease the clamping space, so as to press the wire harness tightly onto the first end 21 or the second end 22. This improves the stability of the connection and avoids a loose connection between the wire harness and the conductive member 2, thereby improving the reliability of the wiring device.

[0063] It should be explained that the number of fasteners 6 can be set to any number of 2, 3, 4, 5, 6, 7, 8, etc. Those skilled in the art can set it according to their needs, and this application does not impose any restrictions on it.

[0064] In practical applications, the second end 22 can be equipped with one or two fasteners 6. When one fastener 6 is set, the battery end wiring harness 4 and the test end wiring harness 5 are fixed at the same time through the fastener 6. When two fasteners 6 are set, the battery end wiring harness 4 or the test end wiring harness 5 are fixed through one fastener 6 respectively.

[0065] like Figure 2 As shown, in some embodiments of this application, the fixing member 6 includes a first connecting member 61 and a second connecting member 62. One end of the first connecting member 61 is connected to the insulating box 1, and the other end passes through the conductive member 2 and is at least partially exposed outside the conductive member 2. The second connecting member 62 is screwed to the other end of the first connecting member 61. The second connecting member 62 can move relative to the conductive member 2 to adjust the size of the clamping space.

[0066] In this embodiment of the application, one end of the first connector 61 is connected to the insulating box 1, and the other end passes through the conductive member 2 and is at least partially exposed on the conductive member 2. The second connector 62 is screwed to the other end of the first connector 61. The second connector 62 can move relative to the conductive member 2 to adjust the size of the clamping space, thereby facilitating the connection of the wire harness to the conductive member 2. At the same time, it can ensure the stability and reliability of the wire harness connection.

[0067] Understandably, one end of the first connector 61 is fixedly connected to the insulating box 1, and the other end passes through the conductive member 2 and is at least partially exposed on the conductive member 2. Thus, the second connector 62 can be screwed to the part exposed on the conductive member 2. After the wire harness is connected to the clamping space between the first connector 61 and the second connector 62, the size of the clamping space can be adjusted by adjusting the position between the second connector 62 and the conductive member 2.

[0068] In practical applications, the first connector 61 can be a bolt, and the second connector 62 can be a nut. Both are made of conductive materials, which on the one hand enables convenient wiring harness connection, and on the other hand ensures the stability and reliability of the electrical connection of the wiring harness.

[0069] It should be explained that one end of the first connector 61 can be embedded in the wall of the insulating box 1, and the other end extends toward the receiving cavity 10. The conductive element 2 is provided with a through hole, and the first connector 61 passes through the through hole, thereby fixing the conductive element 2 on the insulating box 1, while the end of the conductive element 2 exposed is screwed to the second connector.

[0070] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this application, the sidewalls of the receiving cavity 10 facing the first end 21 and the receiving cavity 10 facing the second end 22 are provided with wire passage holes 11. One wire passage hole 11 is used for the device end wire harness 3 and the test end wire harness 5 to pass through, and the other wire passage hole 11 is used for the battery end wire harness 4 to pass through.

[0071] In this embodiment, by providing wire-passing holes 11 on both the sidewalls of the receiving cavity 10 facing the first end 21 and the sidewalls of the receiving cavity 10 facing the second end 22, the battery end wire harness 4 extends from the battery or testing device and extends through the wire-passing holes 11 facing the second end 22 into the insulating box 1 (i.e., the receiving cavity 10) before being connected to the second end 22; the device end wire harness 3 and the testing end wire harness 5 extend from the testing device and extend through the wire-passing holes 11 facing the first end 21 into the insulating box 1 (i.e., the receiving cavity 10) before being connected to the first end 21, thereby forming an electrical connection line between the battery and the testing device, improving the stability and convenience of the wire harness connection.

[0072] In specific applications, the sidewalls of the receiving cavity 10 facing the first end 21 and the sidewalls of the receiving cavity 10 facing the second end 22 specifically refer to the opposite sides of the receiving cavity 10 along the extension direction from the first end 21 to the second end 22, with the side closer to the first end 21 being the side facing the first end 21. In practical applications, the conductive element 2 is "elongated", with its length direction being the extension direction from the first end 21 to the second end 22, thereby opening a wire hole 11 on each of the two opposite sidewalls of the receiving cavity 10 to facilitate the passage of wires connected to different ends of the conductive element 2.

[0073] like Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of this application, the insulating box 1 has a protrusion 12 at a position corresponding to the conductive element 2, and the conductive element 2 is fixed on the protrusion 12.

[0074] In this embodiment of the application, by providing a protrusion 12 at a position corresponding to the conductive element 2 in the insulating box 1, the conductive element 2 is fixed on the protrusion 12, thereby raising the relative position of the conductive element 2, making it convenient for operators to connect the wire harness to the conductive element 2.

[0075] In a specific application, a protrusion 12 is provided at the corresponding position of the conductive component 2, so that the first connector 61 is embedded in the protrusion 12, providing sufficient space for the installation of the first connector 61 and ensuring the stability and reliability of the first connector 61.

[0076] Understandably, the shape and height of the protrusion 12 can be set according to actual needs to ensure convenient wiring, and this application does not impose any restrictions on this.

[0077] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of this application, the insulating box 1 is provided with a plurality of heat dissipation holes 13 at intervals, and the plurality of heat dissipation holes 13 are connected to the receiving cavity 10.

[0078] In this embodiment of the application, by providing a plurality of heat dissipation holes 13 at intervals on the insulating box 1, and by having the plurality of heat dissipation holes 13 communicate with the receiving cavity 10, it is possible to ensure that the receiving cavity 10 can easily exchange heat with the outside world, thereby avoiding excessively high temperature inside the receiving cavity 10 and affecting the wire harness connection point.

[0079] In specific applications, the heat dissipation holes 13 can be set on the housing 14 and the cover 15. Taking the housing 14 as an example, the housing 14 has three relative directions: length, width and height. The heat dissipation holes 13 can be set on the side wall in the length direction or the side wall in the width direction, or of course, they can be set on the bottom surface. Those skilled in the art can set them according to actual needs, and this application does not limit them.

[0080] Understandably, the number and diameter of the heat dissipation holes 13 can be set according to actual needs, and this application does not impose any restrictions on them.

[0081] In some embodiments of this application, a battery testing system is also proposed, including a device-end wiring harness 3, a battery-end wiring harness 4, a test-end wiring harness 5, and a wiring device as described in any of the above embodiments. The device-end wiring harness 3 is connected to a first end 21, and the battery-end wiring harness 4 and the test-end wiring harness 5 are connected to a second end 22.

[0082] In this embodiment, the wiring device includes an insulating box 1 and a conductive element 2. The insulating box 1 has at least one receiving cavity 10, and the conductive element 2 is disposed within the receiving cavity 10. The conductive element 2 has a first end 21 and a second end 22 facing each other. The first end 21 is adapted to connect to the device-end wiring harness 3, and the second end 22 is adapted to connect to the battery-end wiring harness 4 and the test-end wiring harness 5. In this way, two wiring harness connection points are formed respectively within the receiving cavity 10, eliminating defects such as easy overheating and high contact resistance at the wiring harness connection points, and improving the stability and reliability of the connection. Furthermore, since the wiring harness connection points are located within the insulating box 1, they are protected from external interference, reducing the probability of insulation failure and electric shock.

[0083] In specific applications, the device-end wiring harness 3 refers to the wiring harness of the testing device, such as the wiring harness of the charging and discharging device, including the positive electrode wiring harness and the negative electrode wiring harness; the battery-end wiring harness 4 refers to the wiring harness connected to the positive or negative electrode of the battery; the testing-end wiring harness 5 refers to the wiring harness of the testing device for collecting battery performance values, such as the wiring harness for collecting the positive or negative electrode voltage of the battery.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wiring device, characterized in that, include: An insulating box (1) and a conductive element (2) are provided. The insulating box (1) has at least one receiving cavity (10). The conductive element (2) is disposed in the receiving cavity (10). The conductive element (2) has a first end (21) and a second end (22) opposite to each other. The first end (21) is adapted to connect the device end wiring harness (3). The second end (22) is adapted to connect the battery end wiring harness (4) and the test end wiring harness (5).

2. The wiring device according to claim 1, characterized in that, The insulating box (1) is provided with a plurality of independent receiving cavities (10), and each of the plurality of receiving cavities (10) is provided with a conductive element (2). The conductive elements (2) in the plurality of receiving cavities (10) are respectively used to connect wire harnesses of different conductive types.

3. The wiring device according to claim 2, characterized in that, The insulation box (1) includes a box body (14), a box cover (15) and at least one partition (16). The box cover (15) is connected to the box body (14) to enclose and form a receiving space (141). The partition (16) is disposed in the receiving space (141) to divide the receiving space (141) into a plurality of independent receiving cavities (10).

4. The wiring device according to claim 3, characterized in that, The box body (14) is provided with a first snap-fit ​​part (142), and the box cover (15) is provided with a second snap-fit ​​part (151). The first snap-fit ​​part (142) and the second snap-fit ​​part (151) are snap-fitted together. And / or, the partition (16) and the box body (14) are integrally formed parts.

5. The wiring device according to claim 1, characterized in that, The wiring device also includes a plurality of fixing members (6), and the fixing members (6) are respectively provided at the first end (21) and the second end (22). The fixing members (6) are movably connected to the conductive member (2). A clamping space for clamping the wire harness is formed between the fixing members (6) and the conductive member (2). The fixing members (6) can move relative to the conductive member (2) to adjust the size of the clamping space.

6. The wiring device according to claim 5, characterized in that, The fixing member (6) includes a first connector (61) and a second connector (62). One end of the first connector (61) is connected to the insulating box (1), and the other end passes through the conductive member (2) and is at least partially exposed outside the conductive member (2). The second connector (62) is screwed to the other end of the first connector (61). The second connector (62) can move relative to the conductive member (2) to adjust the size of the clamping space.

7. The wiring device according to claim 1, characterized in that, The receiving cavity (10) has wire-passing holes (11) on its sidewalls facing the first end (21) and the second end (22). One of the wire-passing holes (11) is used for the device end wire harness (3) and the test end wire harness (5) to pass through, and the other wire-passing hole (11) is used for the battery end wire harness (4) to pass through.

8. The wiring device according to claim 1, characterized in that, The insulating box (1) has a protrusion (12) at a position corresponding to the conductive element (2), and the conductive element (2) is fixed on the protrusion (12).

9. The wiring device according to claim 1, characterized in that, The insulating box (1) is provided with a plurality of heat dissipation holes (13) spaced apart, and the plurality of heat dissipation holes (13) are connected to the receiving cavity (10).

10. A battery testing system, characterized in that, It includes a device-end wiring harness (3), a battery-end wiring harness (4), a test-end wiring harness (5), and a wiring device as described in any one of claims 1-9, wherein the device-end wiring harness (3) is connected to the first end (21), and the battery-end wiring harness (4) and the test-end wiring harness (5) are connected to the second end (22).

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