Battery boxes and electrical equipment

Abstract

This application discloses a battery box and electrical equipment, the battery box comprising a box body, a battery module disposed inside the box body, a battery management system, a high-voltage distribution box, and a sensor. The high-voltage distribution box comprises a high-voltage distribution box body and an integrated wire harness. Multiple wire harnesses are integrated within the integrated wire harness. The wire harness extends in a direction toward the battery management system from the high-voltage distribution box body. The battery management system is connected to the battery module, the high-voltage distribution box, the sensor, and the box body interface via the wire harness.

Description

Technical Field

[0001] Cross-reference to Related Applications This application claims priority based on Chinese Patent Applications No. 202310332944.8 and No. 202320682443.8, which were filed with the China National Intellectual Property Administration on March 31, 2023, and the entire contents of these applications are incorporated herein by reference. This application relates to the technical field of batteries, particularly battery boxes and electrical equipment.

Background Art

[0002] As one of the core components of electric vehicles, power batteries are the energy centers of electric vehicles. As the energy distribution unit of power batteries, the high-voltage distribution box plays an irreplaceable role for the entire vehicle. Currently, the high-voltage distribution box (Battery Energy Distribution Unit, BDU) inside the power battery box (PACK) is arranged on one side inside the box as a power distribution and voltage / current collection unit.

[0003] Currently, in the design of conventional high-voltage distribution boxes, the base, upper cover, protective cover, and wire harness are connected to the external interface of the high-voltage box, and the high-voltage distribution box transmits signals to the collection interface of the battery management system (Battery Management System, BMS) through the wire harness inside the battery box. Its drawback is that the volume of the conventional high-voltage box is large, the number of components is many, especially the internal connections of the high-voltage distribution box are mostly connected through wire harnesses, and there are multiple wire harnesses connected inside the high-voltage distribution box, so the wire harnesses become messy, increasing the production process and process costs.

[0004] [Technical Problem] Embodiments of this application provide a battery box and an electrical device to solve or at least partly solve the deficiencies existing in the above background art.

[0005] [Technical Solution] To achieve the above functions, the technical solution provided in the embodiment of this application is as follows:

[0006] In a first embodiment, an embodiment of the present application provides a battery box comprising a box, a battery module disposed inside the box, a battery management system, a high-voltage distribution box, and a sensor. The high-voltage distribution box comprises a high-voltage distribution box body and an integrated wire harness, wherein a plurality of wire harnesses are integrated within the integrated wire harness, and the wire harness extends in a direction toward the battery management system from the high-voltage distribution box body. The battery management system is connected to the battery module, the high-voltage distribution box body, the sensor, and the box body interface via the wire harness.

[0007] In one embodiment, the battery management system and the high-voltage distribution box body are installed at a distance from each other, and the battery management system and the high-voltage distribution box body are located on the same side inside the box body. The battery management system includes a plurality of terminal interfaces, one of which is provided in correspondence with one of the wire harnesses, and the wire harness extends from the terminal interface toward the high-voltage distribution box body.

[0008] In one embodiment, the wire harness includes a first wire harness, a second wire harness, and a third wire harness, the battery management system is connected to the high-voltage distribution box body via the first wire harness, the battery management system is connected to the sensor via the second wire harness, and the battery management system is connected to the low-voltage interface of the box via the third wire harness.

[0009] In one embodiment, a plurality of electrical elements are provided inside the high-voltage distribution box body, and the plurality of electrical elements are connected to each other via busbars. Multiple first sub-wire harnesses are integrated within the first wire harness, and the first sub-wire harnesses are paired and connected in accordance with the electrical elements.

[0010] In one embodiment, the drive interfaces of the multiple electrical elements are located on the side of the electrical element closest to the side wall of the housing.

[0011] In one embodiment, the busbar includes a plurality of copper bars fixed to the electrical element.

[0012] In one embodiment, the electrical element is provided with a plurality of blade terminals, the first subwire harness is provided with a plurality of collection points, the collection points and the blade terminals are inserted into each other, and the blade terminals and the copper bar are crimped together.

[0013] In one embodiment, the first sub-wire harness is provided with a cable tie buckle, and the cable tie buckle is engaged with the housing of the electrical element.

[0014] In one embodiment, the plurality of electrical elements include at least a main positive relay, a main negative relay, a rapid charging relay, a main fuse, a precharge relay, a precharge resistor, and a precharge capacitor.

[0015] In one embodiment, the sensor includes a pressure sensor, the second wire harness includes a pressure collecting wire harness, and / or the sensor includes a temperature sensor, the second wire harness includes a temperature collecting wire harness.

[0016] In one embodiment, the wire harness includes a wire core and a first insulating protective layer sleeved on the surface of the wire core. The integrated wire harness is provided with a second insulating protective layer, the second insulating protective layer is located on the side of the first insulating protective layer away from the wire core, and the second insulating protective layer is used to integrate a plurality of wire harnesses within the integrated wire harness.

[0017] In one embodiment, the high-voltage distribution box body comprises a top cover and a case with an open end, the top cover being used to seal the opening of the case, and the top cover being rotatably connected to the case.

[0018] In one embodiment, rotating shafts are provided on both sides of the case, and the top lid is provided with rotating holes corresponding to the rotating shafts, and the rotating holes are engaged with the rotating shafts. When the top cover is opened relative to the case, the top cover is rotatably connected to the case via the pivot shaft. When the top lid is closed over the case, the top lid and the case are fixedly connected by a fixing member.

[0019] In a second embodiment, an embodiment of the present application provides an electrical device comprising a battery box, the battery box comprising a box body, a battery module disposed inside the box body, a battery management system, a high-voltage distribution box, and a sensor. The high-voltage distribution box comprises a high-voltage distribution box body and an integrated wire harness, wherein a plurality of wire harnesses are integrated within the integrated wire harness, and the wire harness extends in a direction toward the battery management system from the high-voltage distribution box body. The battery management system is connected to the battery module, the high-voltage distribution box body, the sensor, and the box body interface via the wire harness.

[0020] In one embodiment, the battery management system and the high-voltage distribution box body are installed at a distance from each other, and the battery management system and the high-voltage distribution box body are located on the same side inside the box body. The battery management system includes a plurality of terminal interfaces, one of which is provided in correspondence with one of the wire harnesses, and the wire harness extends from the terminal interface toward the high-voltage distribution box body.

[0021] [Effects of the invention] Embodiments of the present application provide a battery box and an electrical device. The battery box includes a box body, a battery module disposed inside the box body, a battery management system, a high-voltage distribution box, and a sensor. The high-voltage distribution box includes a high-voltage distribution box body and an integrated wire harness. A plurality of wire harnesses are integrated in the integrated wire harness. The wire harness extends in a direction approaching the battery management system from the high-voltage distribution box body. The battery management system is connected to the battery module, the high-voltage distribution box, the sensor, and the box body interface via the wire harness. In the present application, the high-voltage distribution box is configured to include the high-voltage distribution box body and the integrated wire harness, and a plurality of wire harnesses are integrated in the integrated wire harness. Therefore, by improving the integration degree of the wire harness and reducing the extra wiring of the wire harness, the assembly of the battery box becomes more convenient, and the assembly efficiency of the battery box is improved.

Brief Description of the Drawings

[0022] Hereinafter, the technical solution and other beneficial effects of the present application will be clarified by describing the embodiments of the present application in detail with reference to the drawings. [Figure 1] It is a cross-sectional view seen from above of the battery box according to the embodiment of the present application. [Figure 2] It is a structural diagram of the high-voltage distribution box body according to the embodiment of the present application. [Figure 3] It is a cross-sectional view of the high-voltage distribution box body and the integrated wire harness according to the embodiment of the present application. [Figure 4] It is an enlarged view of part A in FIG. 3. [Figure 5] It is a schematic diagram of a state in which the upper cover is opened with respect to the case of the high-voltage distribution box body according to the embodiment of the present application.

Modes for Carrying Out the Invention

[0023] The technical proposal according to embodiments of the present application will be described below clearly and completely with reference to the accompanying drawings of embodiments of the present application. Clearly, the embodiments described are only a selection of embodiments of the present application, not all embodiments. All other embodiments that can be obtained by those skilled in the art without creative work based on embodiments of the present application are included in the scope of protection of the present application.

[0024] This embodiment provides a battery box and electrical equipment. These will be described separately in detail below. Note that the order of description of the embodiments below does not limit the preferred order of the embodiments.

[0025] Refer to Figures 1 to 4. This embodiment provides a battery box 1, which comprises a box body 10, a battery module (not shown) disposed inside the box body 10, a battery management system 20, a high-voltage distribution box, and a sensor (not shown). The high-voltage distribution box comprises a high-voltage distribution box body 30 and an integrated wire harness 40. A plurality of wire harnesses 41 are integrated within the integrated wire harness 40, and the wire harnesses 41 extend in a direction toward the battery management system 20 from the high-voltage distribution box body 30. The battery management system 20 is connected to the battery module, the high-voltage distribution box body 30, the sensor, and the low-voltage interface 10A of the box body 10 via the integrated wire harness 40.

[0026] In related technologies, the Battery Energy Distribution Unit (BDU) plays an indispensable role for the entire vehicle as the energy distribution unit for the power battery. Currently, the design of a BDU involves the base, top cover, protective cover, and wire harness connecting to the external interface of the BDU, and the BDU transmits signals to the Battery Management System (BMS) collection interface via the wire harness inside the battery box. The drawbacks are that conventional BDUs are bulky, have many components, and in particular, most of the internal connections of the BDU are made via wire harnesses. Since there are multiple wire harnesses connected inside the BDU, the wire harnesses become cluttered, increasing production process and process costs.

[0027] In this embodiment, the high-voltage distribution box is configured to include a high-voltage distribution box body 30 and an integrated wire harness 40. Multiple wire harnesses 41 are integrated within the integrated wire harness 40, and the wire harnesses 41 extend in a direction toward the battery management system 20 from the high-voltage distribution box body 30. The battery management system 20 is connected to the battery module, the high-voltage distribution box body 30, the sensor, and the low-voltage interface 10A of the box body 10 via the wire harnesses 41. By increasing the integration of the wire harnesses 41 and reducing the amount of extra wiring in the wire harnesses 41, the assembly of the battery box 1 becomes more convenient and the assembly efficiency of the battery box 1 is improved.

[0028] In one embodiment, refer to Figures 1 and 2. Here, Figure 1 is a cross-sectional view of the battery box 1 as seen from above according to an embodiment of the present application, and Figure 2 is a structural diagram of the high-voltage distribution box body according to an embodiment of the present application.

[0029] In this embodiment, the battery box 1 comprises a box body 10 and a lid plate (not shown), the lid plate being attached to the box body 10, and the box body 10 containing a plurality of battery modules (not shown) distributed independently and spaced apart from each other, a battery management system 20, a high-voltage distribution box and a sensor, the high-voltage distribution box comprising a high-voltage distribution box body 30 and an integrated wire harness 40.

[0030] Here, connections are made between each battery module and between the battery modules and the high-voltage distribution box body 30 via high-voltage connecting copper bars 30C. Multiple wire harnesses 41 are integrated within the integrated wire harness 40, and the wire harnesses 41 extend in the direction toward the battery management system 20 from the high-voltage distribution box body 30. The battery management system 20 is connected to the battery modules, the high-voltage distribution box body 30, the sensors, and the low-voltage interface 10A of the box body 10 via the wire harnesses 41.

[0031] To make it clear, in this embodiment, by installing each component independently of the others so that there are no structural or connection order constraints between them, the assembly process of the battery box 1 becomes more convenient compared to other multi-layer or irregularly shaped battery modules, improving the assembly efficiency of the system and significantly improving the reliability and stability during the installation process of the battery modules.

[0032] Specifically, in this embodiment, the battery management system 20 and the high-voltage distribution box body 30 are installed at a distance from each other, and the battery management system 20 and the high-voltage distribution box body 30 are located on the same side inside the box body 10. The battery management system 20 includes a plurality of terminal interfaces 21, one of which corresponds to one of the wire harnesses 41, and the wire harness 41 extends in a direction toward the terminal interface 21 from the high-voltage distribution box body 30.

[0033] To make it clear, the battery management system 20 and the high-voltage distribution box body 30 are installed at a distance from each other, and the battery management system 20 and the high-voltage distribution box body 30 are located on the same side inside the box body 10, thereby reducing the distance between the battery management system 20 and the high-voltage distribution box body 30, reducing the assembly time and length of the wire harness 41, and further saving on material costs.

[0034] Furthermore, refer to Figures 2 and 3. Here, Figure 3 is a cross-sectional view of a high-voltage distribution box body and integrated wire harness according to an embodiment of the present application. In this embodiment, the high-voltage distribution box body 30 comprises a top cover 31 and a case 32 with an open end, the top cover 31 is used to seal the opening of the case 32 and the top cover 31 is rotatably connected to the case 32. The integrated wire harness 40 is located between the case 32 and the box body 10, and by installing the integrated wire harness 40 in a position that is easy for maintenance personnel to operate, it is not necessary to embed the integrated wire harness 40 in the gaps between the multiple electrical elements 30B, thereby improving assembly and maintenance efficiency.

[0035] In embodiments of the present application, the wire harness 41 includes a wire core and a first insulating protective layer 411 sleeved on the surface of the wire core. The integrated wire harness 40 is provided with a second insulating protective layer 40A. The second insulating protective layer 40A is located on the side of the first insulating protective layer 411 away from the wire core, and the second insulating protective layer 40A is used to integrate a plurality of the wire harnesses 41 within the integrated wire harness 40.

[0036] To make it clear, in this embodiment, the first insulating protective layer 411 is sleeved over the surface of the wire core, the second insulating protective layer 40A is positioned on the side of the first insulating protective layer 411 away from the wire core, and the second insulating protective layer 40A is used to integrate multiple wire harnesses 41 into the integrated wire harness 40, thereby improving the flexibility and strength of the wire harnesses 41 and the integrated wire harness 40, and further avoiding risks such as damage and short circuits due to deformation and pressure of the integrated wire harness 40.

[0037] In this embodiment, the wire harness 41 includes a first wire harness 41A, a second wire harness 41B, and a third wire harness 41C. The battery management system 20 is connected to the high-voltage distribution box body 30 via the first wire harness 41A, the battery management system 20 is connected to the sensor via the second wire harness 41B, and the battery management system 20 is connected to the low-voltage interface 10A of the box body 10 via the third wire harness 41C.

[0038] In this embodiment, by integrating the first wire harness 41A, the second wire harness 41B, and the third wire harness 41C into the integrated wire harness 40, the degree of integration of the wire harness 41 is improved, and the excess wiring of the wire harness 41 is reduced, thereby making the assembly of the battery box 1 easier and improving the assembly efficiency of the battery box 1.

[0039] Furthermore, refer to Figures 3 and 4. Here, Figure 4 is an enlarged view of location A in Figure 3. In this embodiment, the high-voltage distribution box body 30 is provided with a housing cavity 30A, and the housing cavity 30A contains a plurality of electrical elements 30B, and the plurality of electrical elements 30B are connected via a plurality of copper bars 30C. A plurality of first sub-wire harnesses 41A1 are integrated within the first wire harness 41A, and the first sub-wire harnesses 41A1 are paired and connected in correspondence with the electrical elements 30B.

[0040] Specifically, in this embodiment, a plurality of mounting grooves are provided within the housing cavity 30A, and each of the electrical elements 30B is engaged in one of the mounting grooves. The plurality of electrical elements 30B include a main positive relay, a main negative relay, a rapid charging relay, a main fuse, a pre-charge relay, a pre-charge resistor, and a pre-charge capacitor.

[0041] The multiple electrical elements 30B are all common elements in the prior art, and a detailed explanation of their specific structure and connection method is omitted here. Here, the electrical element 30B further comprises multiple copper bars 30C, the copper bars 30C are fixed to the case 32, and the screw bolts are movably connected to the case 32.

[0042] Preferably, the first sub-wire harness 41A1 includes, but is not limited to, a relay control wire harness, a voltage collection wire harness, and a current collection wire harness. In this embodiment, there are no particular limitations in this regard.

[0043] Preferably, in this embodiment, the drive interfaces of the multiple electrical elements 30B are located on the side of the electrical elements 30B closest to the side wall of the housing 10. Specifically, the drive interfaces of the multiple electrical elements 30B are located on the side of the electrical elements 30B closest to the case 32. In this embodiment, by installing the multiple electrical elements 30B so that their drive interfaces are located on the side of the electrical elements 30B closest to the case 32, it should be understood that the drive interfaces of the electrical elements 30B do not occupy space within the high-voltage distribution box body 30.

[0044] Preferably, in this embodiment, the electrical element 30B is provided with a plurality of blade terminals 33B1, and the first sub-wire harness 41A1 is provided with a plurality of collection points 41A10, the collection points 41A10 and the blade terminals 33B1 are inserted into each other, and the blade terminals 33B1 and the copper bar 30C are crimped together. By inserting the collection points 41A10 and the blade terminals 33B1 into each other and crimping the blade terminals 33B1 and the copper bar 30C together, the ends of the collected signal lines in the wire harness 41 are made quick-insert using quick-insert terminals, thereby improving the production efficiency of the battery box 1.

[0045] Preferably, in this embodiment, a fastening buckle 41A11 is provided on the first sub-wire harness 41A1, and the fastening buckle 41A11 is engaged with the housing of the electrical element 30B. In this embodiment, it can be seen that by providing the fastening buckle 41A11, the position of the first sub-wire harness 41A1 is restricted, and the first sub-wire harness 41A1 is prevented from loosening due to external vibrations.

[0046] Furthermore, in this embodiment, the wire harness 41 further includes a fourth wire harness 41D. The fourth wire harness 41D includes a plurality of high-voltage interlock wire harnesses, and the fourth wire harness 41D is drawn out from the integrated wire harness 40 at a preset position and used for electrical connection. In this embodiment, it is understood that by integrating the first wire harness 41A, the second wire harness 41B, the third wire harness 41C, and the fourth wire harness 41D within the integrated wire harness 40, the degree of integration of the wire harness 41 is improved, and the excess wiring of the wire harness 41 is reduced, thereby making the assembly of the battery box 1 easier and improving the assembly efficiency of the battery box 1.

[0047] Furthermore, in this embodiment, the sensor includes, but is not limited to, one of a pressure sensor (Barometric Pressure Sensor, BPS) or a temperature sensor (Negative Temperature Coefficient, NTC). The second wire harness 41B includes, but is not limited to, one of a pressure collecting wire harness or a temperature collecting wire harness, and is not particularly limited to these in this embodiment.

[0048] Specifically, in this embodiment, the sensor may be located between the battery management system 20 and the bottom plate of the housing 10, and the second wire harness 41B may be drawn out from the integrated wire harness 40 at a position close to the sensor and used for electrical connection. Preferably, the sensor is a temperature sensor, the second wire harness 41B is a temperature collection wire harness, and the battery management system 20 is connected to the temperature sensor via the temperature collection wire harness, and / or the sensor is a pressure sensor, the second wire harness 41B is a pressure collection wire harness, and the battery management system 20 is connected to the pressure sensor via the pressure collection wire harness.

[0049] Furthermore, in this embodiment, a liquid cooling plate 50 is positioned between the bottom of the battery module and the battery box 1. The liquid cooling plate 50 includes a heat sink 51 and a flow channel plate 52, the flow channel plate 52 being located on the side of the heat sink 51 away from the battery module. Here, a liquid cooling channel 521 is formed on the side of the flow channel plate 52 closer to the heat sink 51. The liquid cooling channel 521 includes a plurality of parallel subchannels, each subchannel including a plurality of curved segments and a plurality of straight segments, the curved segments being located between adjacent straight segments, and each of the subchannels is preferably a meandering channel. The heat sink 51 is provided with a plurality of heat dissipation holes 51A arranged in an array to improve the cooling effect of the liquid cooling plate 50.

[0050] Furthermore, referring to Figures 2 and 5, where Figure 5 is a schematic diagram showing the case of the high-voltage distribution box body according to the embodiment of the present application with the top cover open.

[0051] In this embodiment, rotating shafts 321 are provided on both sides of the case 32, and rotating holes 311 are provided in the top cover 31 corresponding to the rotating shafts 321, and the rotating holes 311 are engaged with the rotating shafts 321. When the top cover 31 is opened relative to the case 32, the top cover 31 is rotatably connected to the case 32 via the rotating shafts 321. When the top cover 31 is closed relative to the case 32, the top cover 31 and the case 32 are fixedly connected via a fixing member. Here, the fixing member includes, but is not limited to, a screw bolt.

[0052] To make it easier to understand, in this embodiment, rotating shafts 321 are provided on both sides of the case 32, and rotating holes 311 are provided in the top cover 31 corresponding to the rotating shafts 321. By installing the rotating holes 311 so as to engage with the rotating shafts 321, fault diagnosis and maintenance of the high-voltage distribution box body 30 are made easier. Furthermore, when the top cover 31 is closed to the case 32, the top cover 31 and the case 32 are fixedly connected by screw bolts, thereby improving the stability of the high-voltage distribution box body 30.

[0053] This embodiment provides an electrical device including a battery box as described in any of the above embodiments.

[0054] For ease of understanding, the battery box has been described in detail in the above embodiment, so it will not be described again here.

[0055] The battery box includes a battery module, which is used as a power source for the electrical equipment. Thus, the electrical equipment has the advantages of the battery module described above, contributing to the simplification of the overall structure of the electrical equipment. Here, the electrical equipment may be an automobile, an aircraft, a machine production machine, or the like.

[0056] In summary, embodiments of the present invention disclose a battery box and electrical equipment, the battery box comprising a box body, a battery module disposed inside the box body, a battery management system, a high-voltage distribution box, and a sensor, the high-voltage distribution box comprising a high-voltage distribution box body and an integrated wire harness, the integrated wire harness comprising multiple wire harnesses, the wire harness extending in the direction toward the battery management system from the high-voltage distribution box body, and the battery management system being connected to the battery module, the high-voltage distribution box, the sensor, and the box body interface via the wire harness, and in the present invention, the high-voltage distribution box comprising a high-voltage distribution box body and an integrated wire harness, and the configuration such that multiple wire harnesses are integrated within the integrated wire harness, thereby improving the degree of wire harness integration and reducing excess wiring of the wire harness, making the assembly of the battery box more convenient and improving the assembly efficiency of the battery box.

[0057] As described above, this application has been disclosed in preferred embodiments, but these preferred embodiments are not intended to limit the invention, and those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the invention; therefore, the scope of protection of this application is limited to that defined by the claims.

Claims

1. A battery box comprising a box body (10), a battery module disposed inside the box body (10), a battery management system (20), a high-voltage distribution box, and a sensor, The high-voltage distribution box comprises a high-voltage distribution box body (30) and an integrated wire harness (40), with a plurality of wire harnesses (41) integrated within the integrated wire harness (40), and the wire harnesses (41) extending in a direction toward the battery management system (20) from the high-voltage distribution box body (30). The battery box is characterized in that the battery management system (20) is connected to the battery module, the high-voltage distribution box body (30), the sensor, and the low-voltage interface (10A) of the box body (10) via the wire harness (41).

2. The battery management system (20) and the high-voltage distribution box body (30) are installed at a distance from each other, and the battery management system (20) and the high-voltage distribution box body (30) are located on the same side inside the box body (10). The battery box according to claim 1, wherein the battery management system (20) includes a plurality of terminal interfaces (21), one of the terminal interfaces (21) is provided corresponding to one of the wire harnesses (41), and the wire harness (41) extends in a direction toward the high-voltage distribution box body (30) from the terminal interface (21).

3. The battery box according to claim 2, wherein the wire harness (41) includes a first wire harness (41A), a second wire harness (41B), and a third wire harness (41C), the battery management system (20) is connected to the high-voltage distribution box body (30) via the first wire harness (41A), the battery management system (20) is connected to the sensor via the second wire harness (41B), and the battery management system (20) is connected to the low-voltage interface (10A) of the box body (10) via the third wire harness (41C).

4. Multiple electrical elements (30B) are provided inside the high-voltage distribution box body (30), and the multiple electrical elements (30B) are connected to each other via busbars. The battery box according to claim 3, characterized in that a plurality of first sub-wire harnesses (41A1) are integrated within the first wire harness (41A), and the first sub-wire harnesses (41A1) are paired and connected in correspondence with the electrical elements (30B).

5. The battery box according to claim 4, characterized in that the drive interfaces of the multiple electrical elements (30B) are located on the side of the electrical element (30B) that is close to the side wall of the housing (10).

6. The battery box according to claim 4, characterized in that the busbar includes a plurality of copper bars (30C) fixed to the electrical element (30B).

7. The battery box according to claim 6, characterized in that the electrical element (30B) is provided with a plurality of blade terminals (33B1), the first sub-wire harness (41A1) is provided with a plurality of collection points (41A10), the collection points (41A10) and the blade terminals (33B1) are inserted into each other, and the blade terminals (33B1) and the copper bar (30C) are crimped together.

8. The battery box according to claim 4, characterized in that a cable tie buckle (41A11) is provided on the first sub-wire harness (41A1), and the cable tie buckle (41A11) is attached to the electrical element (30B).

9. The battery box according to claim 4, wherein the plurality of electrical elements (30B) include at least a main positive relay, a main negative relay, a rapid charge relay, a main fuse, a precharge relay, a precharge resistor, and a precharge resistor.

10. The battery box according to claim 3, characterized in that the sensor includes a pressure sensor, the second wire harness (41B) includes a pressure collecting wire harness, and / or the sensor includes a temperature sensor, and the second wire harness (41B) includes a temperature collecting wire harness.

11. The wire harness (41) includes a wire core and a first insulating protective layer (411) that is sleeved on the surface of the wire core. The battery box according to any one of claims 1 to 10, characterized in that the integrated wire harness (40) is provided with a second insulating protective layer (40A), the second insulating protective layer (40A) is located on the side of the first insulating protective layer (411) away from the wire core, and the second insulating protective layer (40A) is used to integrate a plurality of wire harnesses (41) into the integrated wire harness (40).

12. The battery box according to claim 2, wherein the high-voltage distribution box body (30) comprises a top cover (31) and a case (32) with an open end, the top cover (31) is used to seal the opening of the case (32), and the top cover (31) is rotatably connected to the case (32).

13. Rotating shafts (321) are provided on both sides of the case (32), and the top cover (31) is provided with a rotating hole (311) corresponding to the rotating shaft (321), and the rotating hole (311) is engaged with the rotating shaft (321), When the top cover (31) is opened relative to the case (32), the top cover (31) is rotatably connected to the case (32) via the pivot shaft (321). The battery box according to claim 12, characterized in that when the top cover (31) is closed over the case (32), the top cover (31) and the case (32) are fixedly connected by a fixing member.

14. An electrical device comprising a battery box (1), the battery box (1) comprising a box body (10), a battery module disposed inside the box body (10), a battery management system (20), a high-voltage distribution box, and a sensor, The high-voltage distribution box comprises a high-voltage distribution box body (30) and an integrated wire harness (40), with a plurality of wire harnesses (41) integrated within the integrated wire harness (40), and the wire harnesses (41) extending in a direction toward the battery management system (20) from the high-voltage distribution box body (30). The battery management system (20) is connected (10A) to the battery module, the high-voltage distribution box body (30), the sensor, and the low-voltage interface of the box body (10) via the wire harness (41) of the electrical equipment.

15. The battery management system (20) and the high-voltage distribution box body (30) are installed at a distance from each other, and the battery management system (20) and the high-voltage distribution box body (30) are located on the same side inside the box body (10). The electrical equipment according to claim 14, wherein the battery management system (20) includes a plurality of terminal interfaces (21), one of the terminal interfaces (21) is provided corresponding to one of the wire harnesses (41), and the wire harness (41) extends in a direction toward the high-voltage distribution box body (30) from the terminal interface (21).

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