High-voltage power distribution unit and vehicle

Abstract

The invention provides a high-voltage power distribution unit and a vehicle, the high-voltage power distribution unit comprises an electrical assembly and a box body, and the electrical assembly is used for being electrically connected with a battery pack and external electrical equipment; the box body comprises a side wall and a bottom wall, the side wall and the bottom wall form a mounting cavity and a first opening communicated with the mounting cavity, and at least part of the electrical component is mounted in the mounting cavity; a second opening communicated with the mounting cavity is formed in the side wall; and a third opening communicated with the mounting cavity is formed in the bottom wall. According to the invention, through the first opening, the second opening and the third opening, the maintenance of the electrical components close to the bottom and the side part is simpler, and the operation difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a high-voltage power distribution unit and a vehicle. Background Art

[0002] The high-voltage power distribution unit (PDU) is responsible for properly distributing the power output from the car battery or generator to various systems and devices to ensure that they have a stable power supply.

[0003] In the related art, the high-voltage distribution unit is usually provided with only one installation opening, and the electrical components of the high-voltage distribution unit are installed into the box body from the installation opening during installation. When the high-voltage distribution unit is inspected and maintained, the installation opening needs to be opened to inspect the internal electrical components. However, since the electrical components at the bottom and sides are far away from the installation opening, the inspection and maintenance of the electrical components at the bottom and sides is relatively cumbersome and difficult to operate. Summary of the invention

[0004] The embodiments of the present invention provide a high-voltage power distribution unit and a vehicle, which can improve the technical problem that the maintenance of electrical components located at the bottom and sides is complicated and difficult to operate.

[0005] In a first aspect, an embodiment of the present invention provides a high-voltage power distribution unit, the high-voltage power distribution unit comprising: an electrical component for electrically connecting to a battery pack and an external electrical device, respectively;

[0006] The box body includes a side wall and a bottom wall, wherein the side wall and the bottom wall form an installation cavity and a first opening connected to the installation cavity, and at least part of the electrical components are installed in the installation cavity; the side wall is provided with a second opening connected to the installation cavity; and the bottom wall is provided with a third opening connected to the installation cavity.

[0007] In one embodiment, the high-voltage distribution unit also includes a cover assembly, and the cover assembly includes a first cover, a second cover, and a third cover, the first cover is covered on the first opening and is located on the side of the side wall away from the bottom wall, the second cover is covered on the second opening; the third cover is covered on the third opening.

[0008] In one embodiment, the electrical component includes an overcurrent component and a BMS component, and the BMS component is electrically connected to the battery pack and the external electrical equipment, respectively; the overcurrent component includes a battery side module and a load side module that are electrically connected to each other, the battery side module is used to be electrically connected to the battery pack, and the load side module is used to be electrically connected to the external electrical equipment, at least part of the overcurrent component is arranged opposite to the first opening, and at least part of the BMS component is arranged opposite to the third opening.

[0009] In one embodiment, the first cover body and the bottom wall are arranged along a first direction, the installation cavity includes a first sub-cavity and a second sub-cavity arranged along the first direction, the first sub-cavity is arranged close to the first cover body, the flow-through component is installed in the first sub-cavity, and the BMS component is installed in the second sub-cavity.

[0010] In one embodiment, the second opening has a first sub-port and a second sub-port, the first sub-port is connected to the first sub-cavity, the second sub-port is connected to the second sub-cavity, a portion of the second cover body covers the first sub-port, and a portion of the second cover body covers the second sub-port.

[0011] In one embodiment, the side wall has a first sub-wall, a wiring space is formed between one side of the electrical component and the first sub-wall, the high-voltage distribution unit also includes a wiring harness assembly, the wiring harness assembly is used to pass through the wiring space to connect the electrical component, and the second opening is opened in the first sub-wall.

[0012] In one embodiment, the box body also includes a first reinforcement component and a partition plate arranged between the first cover body and the bottom wall, the first reinforcement component and the first cover body form the first sub-cavity, the first reinforcement component and the bottom wall form the second sub-cavity, the partition plate is fixed to the side of the first reinforcement component close to the first cover body, and part of the BMS component is fixedly connected to the first reinforcement component.

[0013] In one embodiment, the BMS assembly includes a first BMS and a second BMS, the first BMS is fixedly connected to the first reinforcing assembly, and the second BMS is installed on the bottom wall.

[0014] In one embodiment, the box body further includes a second reinforcing assembly, the second reinforcing assembly is connected to the bottom wall and is located on a side of the bottom wall facing the first cover body, and the second BMS is fixedly connected to the second reinforcing assembly.

[0015] In one embodiment, the BMS assembly further includes a bracket and a third BMS, one end of the bracket is connected to the second reinforcement assembly, and the other end extends in a direction close to the first cover body and forms a first installation space with the bottom wall, at least part of the second BMS is located in the first installation space, the third BMS is located on the side of the bracket away from the bottom wall and is connected to the bracket, and the third BMS is located between the first BMS and the second BMS.

[0016] In a second aspect, an embodiment of the present invention provides a vehicle, comprising an electrically connected high-voltage distribution device and a battery pack, wherein the high-voltage distribution device comprises an electrically connected high-voltage distribution component and a high-voltage distribution unit as described above, wherein the high-voltage distribution unit is electrically connected to the battery pack, and the high-voltage distribution component is used to be electrically connected to the high-voltage distribution component unit.

[0017] Beneficial effects of the embodiments of the present invention:

[0018] In the embodiment of the present invention, the first opening formed by the side wall and the bottom wall, the second opening in the side wall communicating with the installation cavity, and the third opening in the bottom wall communicating with the installation cavity can be opened to perform installation and maintenance during maintenance and installation, thereby making it easier to maintain the electrical components located near the bottom and the side, and reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is a three-dimensional schematic diagram of a high-voltage power distribution unit provided by an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Exploded diagram of

[0022] Figure 3 yes Figure 1 Exploded view of the middle part of the structure;

[0023] Figure 4 yes Figure 1 A schematic diagram of the structure with the second cover removed;

[0024] Figure 5 yes Figure 1 A cross-sectional view of

[0025] Figure 6 yes Figure 1 A schematic diagram of the structure of the first cover body, the power exchange connector and the second copper busbar assembly;

[0026] Figure 7 yes Figure 1 Schematic diagram of the structure of the first copper busbar assembly.

[0027] Description of reference numerals:

[0028] 100, electrical components; 101, battery replacement connector; 103, battery terminal connector; 110, overcurrent component; 111, first part; 112, second part; 113, first copper bar assembly; 114, second copper bar assembly; 130, BMS assembly; 131, bracket; 133, first BMS; 134, second BMS; 135, third BMS; 200, box; 210, side wall; 211, second opening; 212, first sub opening; 213, second sub-opening; 214, first sub-wall; 230, bottom wall; 231, third opening; 220, installation cavity; 221, first sub-cavity; 223, second sub-cavity; 240, first opening; 250, first reinforcement assembly; 260, partition; 270, second reinforcement assembly; 280, first installation space; 300, cover assembly; 310, first cover; 330, second cover; 350, third cover; 400, wiring harness assembly. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device.

[0030] The high-voltage power distribution unit (PDU) is responsible for properly distributing the power output from the car battery or generator to various systems and devices to ensure that they have a stable power supply.

[0031] In the related art, the high-voltage distribution unit is usually provided with only one installation opening, and the electrical components of the high-voltage distribution unit are installed into the box body from the installation opening during installation. When the high-voltage distribution unit is inspected and maintained, the installation opening needs to be opened to inspect the internal electrical components. However, since the electrical components at the bottom and sides are far away from the installation opening, the inspection and maintenance of the electrical components at the bottom and sides is relatively cumbersome and difficult to operate.

[0032] In order to solve the above technical problems, in the first aspect, the present application provides a high voltage power distribution unit, please combine Figure 1 and Figure 2The high-voltage power distribution unit includes an electrical component 100 and a box body 200. The electrical component 100 is used to be electrically connected to a battery pack and an external electrical device, respectively. In this way, by electrically connecting the external electrical device to the battery pack, the power output by the battery pack can be distributed to the external electrical device, or the battery pack can be charged through the external electrical device.

[0033] In some examples, the high-voltage distribution unit can be disposed inside the vehicle, and the vehicle can also include a battery pack, which can be mounted on the vehicle body. The battery pack can generally be disposed outside the high-voltage distribution unit, for example, the battery pack can be disposed below the high-voltage distribution unit, or the battery pack can be disposed next to the high-voltage distribution unit.

[0034] Please combine Figure 2 The battery terminal connector 103 can be mounted on the side wall 210 and electrically connected to the battery pack through the battery terminal connector 103. The battery terminal connector 103 is connected to the electrical component 100 through a connecting copper busbar.

[0035] Please combine Figure 2 and Figure 3 The box body 200 includes a side wall 210 and a bottom wall 230, and the side wall 210 and the bottom wall 230 form an installation cavity 220 and a first opening 240 connected to the installation cavity 220. At least part of the electrical component 100 is installed in the installation cavity 220, so that the electrical component 100 can be protected from damage.

[0036] Please combine Figure 3 The side wall 210 is provided with a second opening 211 communicating with the installation cavity 220 , so that the installation cavity 220 can be entered through the second opening 211 provided in the side wall 210 to inspect and install the electrical component 100 located at the side.

[0037] Please combine Figure 3 The bottom wall 230 is provided with a third opening 231 communicating with the installation cavity 220. Thus, the installation cavity 220 can be entered through the third opening 231 provided in the bottom wall 230 to inspect and install the electrical component 100 located at the side.

[0038] In these embodiments, the second opening 211 opened in the side wall 210 , the third opening 231 opened in the bottom wall 230 , and the first opening 240 formed by the side wall 210 and the bottom wall 230 can facilitate maintenance by operators.

[0039] In some embodiments, the bottom wall 230 is located at the bottom of the high-voltage distribution unit, the third opening 231 is the bottom opening of the high-voltage distribution unit, the first opening 240 is the top opening of the high-voltage distribution unit, the side wall 210 is located at the side of the high-voltage distribution unit, and the second opening 211 is the side opening of the high-voltage distribution unit. In other words, the bottom, top and side of the high-voltage distribution unit are all provided with openings, so that the electrical components 100 located at the bottom, top and side of the high-voltage distribution unit can be inspected and installed respectively through the openings at the bottom, top and side of the high-voltage distribution unit.

[0040] Please combine Figure 1 , Figure 4 as well as Figure 5 In some embodiments, the high-voltage distribution unit also includes a cover assembly 300, including a first cover 310, a second cover 330 and a third cover 350. The first cover 310 covers the first opening 240 and is located on the side of the side wall 210 away from the bottom wall 230; the second cover 330 covers the second opening 211; and the third cover 350 covers the third opening 231.

[0041] The first opening 240 is covered or opened by the first cover body 310, the second opening 211 is covered or opened by the second cover body 330, and the third opening 231 is covered or opened by the third cover body 350. In this way, the corresponding cover body can be opened during maintenance. For example, when it is necessary to install or overhaul the electrical component 100 near the first opening 240, it is only necessary to open the first cover body 310 so that the electrical component 100 in the installation cavity 220 is exposed, and after the installation and overhaul are completed, the first cover body 310 can be installed back. When the electrical component 100 near the second opening 211 is installed or overhauled, it is only necessary to open the second cover body 330 so that the electrical component 100 in the installation cavity 220 is exposed, and after the installation and overhaul are completed, the second cover body 330 can be installed back. When installing or repairing the electrical component 100 near the third opening 231 , it is only necessary to open the third cover 350 to expose the electrical component 100 in the installation cavity 220 . After the installation or repair is completed, the third cover 350 can be installed back.

[0042] Please combine Figure 4 In some embodiments, the electrical component 100 includes an overcurrent component 110 and a BMS component 130, and the BMS component 130 is electrically connected to the battery pack and the external electrical device, respectively; the overcurrent component includes a battery side module and a load side module that are electrically connected to each other, the battery side module is used to be electrically connected to the battery pack, and the load side module is used to be electrically connected to the external electrical device, at least part of the overcurrent component is arranged opposite to the first opening 240, and at least part of the BMS component 130 is arranged opposite to the third opening.

[0043] In the electrical component 100, the BMS component 130 is easily damaged, so part of the BMS component 130 is arranged opposite to the third opening 231, and the installation cavity 220 can be entered through the third opening 231 to repair or install the BMS component 130 inside the installation cavity 220. For example, only after removing the third cover body 350, at least part of the BMS component can be exposed to the inspector, which is convenient for repairing the BMS component. When the overcurrent component 110 needs to be repaired or installed, it is only necessary to enter the installation cavity 220 through the first opening 240 to repair or install the overcurrent component 110 inside the installation cavity 220. For example, only after removing the first cover body 310, the overcurrent component 110 can be exposed to the inspector, which is convenient for repairing the overcurrent component 110.

[0044] Please combine Figure 3 In some embodiments, the first cover body 310 and the bottom wall 230 are arranged along the first direction, the installation cavity 220 includes a first sub-cavity 221 and a second sub-cavity 223 arranged along the first direction, the first sub-cavity 221 is arranged close to the first cover body 310, the flow component 110 is installed in the first sub-cavity 221, and the BMS component 130 is installed in the second sub-cavity 223.

[0045] In these embodiments, the internal space of the box 200 is divided into two chambers arranged along the first direction, namely the first sub-chamber 221 and the second sub-chamber 223. The BMS component 130 and the overcurrent component 110 are arranged in the first installation cavity and the second installation cavity distributed along the first direction, so that the space in the first direction of the high-voltage distribution unit can be fully utilized, so that the wiring distance is shorter and the high-voltage distribution unit is more compact.

[0046] In some examples, a partition 260 may be installed in the box body 200 , and the partition may be fixedly connected to the side wall 210 . The partition may be used to separate the installation cavity 220 into a first sub-cavity 221 and a second sub-cavity 223 arranged along a first direction.

[0047] In some embodiments, the second opening 211 has a first sub-port 212 and a second sub-port 213 , the first sub-port 212 is connected to the first sub-cavity 221 , the second sub-port 213 is connected to the second sub-cavity 223 , a portion of the second cover 330 covers the first sub-port 212 , and a portion of the second cover 330 covers the second sub-port 213 .

[0048] In these embodiments, the first sub-opening 212 and the second sub-opening 213 are covered by the second cover body 330, so that the first sub-opening 212 and the second sub-opening 213 can be opened simultaneously by opening the second cover body 330, so that the components in the first sub-cavity 221 and the second sub-cavity 223 can be inspected, installed, etc.

[0049] In some embodiments, the side wall 210 has a first sub-wall 214, and a wiring space is formed between one side of the electrical component 100 and the first sub-wall 214. The high-voltage distribution unit also includes a wiring harness assembly 400, which is used to pass through the wiring space to connect the electrical component 100. The second opening 211 is opened in the first sub-wall 214.

[0050] In these embodiments, the wiring harness assembly passes through a wiring space formed between one side of the electrical component 100 and the first sub-wall 214, and the wiring is more neat and orderly, and the second opening 211 is opened in the first sub-wall 214, so that after removing the second cover 330, the wiring harness assembly 400 can be exposed in front of the inspector, which is convenient for installation and maintenance of the wiring harness assembly 400.

[0051] In some embodiments, the box body 200 further includes a first reinforcing assembly 250 and a partition 260 disposed between the first cover body 310 and the bottom wall 230, and the first reinforcing assembly is installed in the installation cavity. In some examples, the first reinforcing assembly 250 can be connected to the side wall 210, so as to be installed in the installation cavity. The first reinforcing assembly 250 can be connected to the side wall 210 by welding, screwing, riveting, etc. In some examples, the first reinforcing assembly 250 can be welded to the side wall 210.

[0052] In some embodiments, the first reinforcement component 250 and the first cover body 310 form a first sub-cavity 221, the first reinforcement component 250 and the bottom wall 230 form a second sub-cavity 223, the partition 260 is fixed to the side of the first reinforcement component 250 close to the first cover body 310, and part of the BMS component 130 is fixedly connected to the first reinforcement component 250.

[0053] In these embodiments, part of the BMS assembly 130 is fixedly connected to the first reinforcement assembly 250. The BMS assembly 130 and the first reinforcement assembly 250 may be connected by screwing, clamping, riveting, etc. In some embodiments, the BMS assembly 130 and the first reinforcement assembly 250 may be screwed. The first reinforcement assembly 250 can be used to strengthen the box 200, and can carry the partition 260 and can also be used to install part of the BMS assembly 130. The fixed connection of part of the BMS assembly 130 to the first reinforcement assembly 250 can make the interval between the BMS assembly 130 and the first sub-cavity 221 smaller, the structure is more compact, and the installation space is saved. In addition, since the BMS assembly is fixedly connected to the first reinforcement assembly 250, the horizontal space occupied is smaller than that of fixing the BMS assembly to the side wall.

[0054] Please combine Figure 2In some embodiments, the BMS assembly 130 includes a first BMS 133 and a second BMS 134, the first BMS 133 is fixedly connected to the first reinforcing assembly 250, and the second BMS 134 is installed on the bottom wall 230. In this way, the gravity of the BMS assembly 130 can be shared by the first reinforcing assembly 250 and the bottom wall 230, so that the installation of the first BMS 133 and the second BMS 134 is more stable, and at the same time, multiple BMSs of the BMS assembly 130, such as the first BMS 133 and the second BMS 134, can be evenly distributed in the second sub-cavity 223.

[0055] In some embodiments, the box 200 further includes a second reinforcing assembly 270 , which is connected to the bottom wall 230 and located on a side of the bottom wall 230 facing the first cover 310 , and the second BMS 134 is fixedly connected to the second reinforcing assembly 270 .

[0056] Please combine Figure 5 In these embodiments, the bottom wall 230 of the high-voltage distribution unit is reinforced by the second reinforcement assembly 270, and the second BMS 134 is fixedly connected to the second reinforcement assembly 270, so that the installation of the second BMS 134 is more stable. The second BMS 134 and the second reinforcement assembly 270 can be screwed, welded, clamped, etc. In some embodiments, the second BMS 134 and the second reinforcement assembly 270 are screwed.

[0057] Please combine Figure 2 as well as Figure 5 In some embodiments, the BMS assembly 130 further includes a bracket 131 and a third BMS 135, one end of the bracket 131 is connected to the second reinforcement assembly 270, and the other end extends in a direction close to the first cover body 310, and forms a first installation space 280 with the bottom wall 230, at least part of the second BMS 134 is located in the first installation space 280, the third BMS 135 is located on a side of the bracket 131 away from the bottom wall 230, and is connected to the bracket 131, and the third BMS 135 is located between the first BMS 133 and the second BMS 135.

[0058] In this way, the high-voltage distribution unit is provided with three BMSs in total, which are arranged along the first direction, the first BMS 133 is fixedly connected to the first reinforcement assembly 250, the second BMS 134 is installed on the bottom wall 230, and the third BMS 135 is located between the first BMS 133 and the second BMS 134, so that the three BMS structures are compact.

[0059] According to the second aspect of the present application, a method for assembling a high-voltage power distribution unit is also provided. The method for assembling a high-voltage power distribution unit can be applied to the above-mentioned high-voltage power distribution unit. Figure 2The electrical component 100 includes a power exchange connector 101 and a current-passing component 110. The current-passing component 110 includes a first part 111 and a second part 112. The first part 111 includes a first copper bar component 113 and a second copper bar component 114. The assembly method includes:

[0060] Install the second portion 112 into the installation cavity 220 from the first opening 240 , and connect the first copper bar assembly 113 to the second portion 112 ;

[0061] Install the power exchange connector 101 on the first cover 310, and connect one end of the second copper bar assembly 114 to the end of the power exchange connector 101 facing the installation cavity 220;

[0062] The other end of the second copper bar assembly 114 is connected to the first copper bar assembly 113 through the second opening 211 .

[0063] Since in the embodiment of the present application, the high-voltage distribution unit has a compact structure and a small total volume, the available space during assembly or maintenance is not large. In the assembly method of the high-voltage distribution unit, a part of the current-passing assembly 110 is installed from the first opening 240, and the other end of the second copper busbar assembly 114 is connected to the first copper busbar assembly 113 from the second opening 211, which is convenient and simple to operate.

[0064] Install the power exchange connector 101 on the first cover body 310 , and connect one end of the second copper busbar assembly 114 to the end of the power exchange connector 101 facing the installation cavity 220 ; then the first cover body 310 can be connected to the side wall 210 to cover the first opening 240 .

[0065] After the first cover 310 is connected to the side wall 210 , the other end of the second copper bar assembly 114 can be connected to the first copper bar assembly 113 through the second opening 211 .

[0066] After the other end of the second copper bar assembly 114 is connected to the first copper bar assembly 113 through the second opening 211 , the second cover 330 can be connected to the side wall 210 to cover the second opening 211 .

[0067] In some embodiments, the second portion 112 may include a relay, a Hall sensor, or the like.

[0068] In some embodiments, the relay may be mounted on the partition, and then the partition with the relay mounted thereon may be mounted into the mounting cavity through the first opening.

[0069] Install the power-changing connector on the box cover, and connect one end of the second copper bar assembly to the end of the power-changing connector facing the installation cavity;

[0070] Connect the other end of the second copper bar assembly to the first copper bar assembly through the second opening.

[0071] In some embodiments, the TBOX host may be mounted on the side wall 210 .

[0072] Please combine Figure 6 as well as Figure 7 In some embodiments, the power exchange connector 101 is fixed on the first cover body 310, and the power exchange connector 101 is configured in multiples. The power exchange connector 101 shown in the figure is configured as three, and one power exchange connector 101 can be correspondingly provided with a set of positive and negative electrical connection copper bars. Three power exchange connectors 101 can be correspondingly provided with six positive and negative electrical connection copper bars, and the second copper bar assembly 114 can include the above-mentioned six positive and negative electrical connection copper bars. The six positive and negative electrical connection copper bars are staggered with each other, and the structure is compact.

[0073] The second copper bar assembly 114 may include the above-mentioned six copper bars for positive and negative terminal electrical connection. The six copper bars for positive and negative terminal electrical connection may be composed of four "L"-shaped copper bars and two 3D bent copper bars, and their width and thickness may be consistent, so that they can be assembled together to reduce waste and reduce costs.

[0074] Please combine Figure 2 The battery terminal connector 103 can be installed on the side wall 210 and electrically connected to the battery pack through the battery terminal connector 103. The battery terminal connector 103 is connected to the electrical component 100 through the first copper busbar assembly 113 and the second copper busbar assembly 114.

[0075] One end of the second copper busbar assembly 114 is connected to one end of the power exchange connector 101 toward the installation cavity, and the other end can be connected to the fixing point of the insulating column located on the same side in sequence from one side of the first cover body 310.

[0076] The first copper bar assembly 113 can be mainly used to connect the electrical component 100, for example, to connect a relay, etc. In some examples, the first copper bar assembly 113 may include six copper bars, which may be composed of three "I"-shaped copper bars and three "L"-shaped copper bars. The six copper bars may be arranged to be copper bars of equal thickness and width, and the six copper bars may be assembled to reduce costs. The six first copper bars may be common compatible materials, and may be assembled to reduce costs by using L-shaped copper bars.

[0077] The first copper bar assembly 113 may include a second copper bar, and the second copper bar may include two bus bars. The two bus bars may be directly stamped from a plate, which has a simple process and low cost.

[0078] When assembling, the six copper busbars connected to the power-swap connector need to be pre-installed and fixed to the upper cover first. The copper busbar at the battery end needs to be pre-installed on the bottom plate of the electrical compartment, and then the electrical connection and fixation are completed through the side inspection window.

[0079] In a third aspect, an embodiment of the present application further provides a vehicle, comprising an electrically connected high-voltage distribution device and a battery pack, wherein the high-voltage distribution device comprises an electrically connected high-voltage distribution component and the above-mentioned high-voltage distribution unit, wherein the high-voltage distribution component unit is electrically connected to the battery pack, and the high-voltage distribution component is used to be electrically connected to the high-voltage distribution component unit.

[0080] In the embodiment of the present application, the high-voltage power distribution unit is electrically connected to the battery pack, and the high-voltage power distribution unit is connected to the high-voltage power distribution unit. The high-voltage power distribution unit can be used to connect with other required power structures of the vehicle (such as motors, air-conditioning compressors, charging systems, etc.), thereby distributing the power output by the battery pack to the motors, air-conditioning compressors, charging systems, etc.

[0081] That is to say, the above-mentioned high-voltage distribution unit is electrically connected to the battery pack, and the above-mentioned high-voltage distribution unit can be electrically connected to external electrical equipment through high-voltage distribution components. In this way, by electrically connecting the external electrical equipment to the battery pack, it is possible to distribute the power output by the battery pack to the external electrical equipment, or to charge the battery pack through the external electrical equipment.

[0082] In some embodiments, the high-voltage power distribution component is fixedly connected to the battery pack, so that when replacing the battery, it is convenient to replace the high-voltage power distribution component and the battery pack as a whole.

[0083] In some embodiments, the vehicle includes a fixed frame, and the high-voltage power distribution unit and the battery pack are installed in the fixed frame, so that the whole formed by the high-voltage power distribution unit and the battery pack is more solid and reliable, and can provide good protection for the high-voltage power distribution unit and the battery pack.

[0084] In some embodiments, the high-voltage distribution component is detachably connected to the high-voltage distribution component unit, and the high-voltage distribution component is installed on the top of the battery pack. The high-voltage distribution component is detachably connected to the high-voltage distribution component unit, which is convenient for battery replacement. The high-voltage distribution component is installed on the top of the battery pack, or the high-voltage distribution component and the battery pack are arranged along the height direction of the vehicle, so as to make full use of the space in the height direction of the vehicle and reduce the space occupied in the width direction and length direction of the vehicle.

[0085] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A high voltage distribution unit, characterized in that: include: An electrical component (100) for electrically connecting to a battery pack and an external electrical device respectively; The box body (200) comprises a side wall (210) and a bottom wall (230), wherein the side wall (210) and the bottom wall (230) form an installation cavity (220) and a first opening (240) communicating with the installation cavity (220), and at least part of the electrical component (100) is installed in the installation cavity (220); the side wall (210) is provided with a second opening (211) communicating with the installation cavity (220); and the bottom wall (230) is provided with a third opening (231) communicating with the installation cavity (220).

2. The high voltage distribution unit according to claim 1, characterized in that: The high-voltage power distribution unit further comprises a cover assembly (300), wherein the cover assembly (300) comprises a first cover (310), a second cover (330) and a third cover (350), wherein the first cover (310) is disposed on the first opening (240) and is located on a side of the side wall (210) away from the bottom wall (230), the second cover (330) is disposed on the second opening (211), and the third cover (350) is disposed on the third opening (231).

3. The high voltage distribution unit according to claim 2, characterized in that: The electrical component (100) comprises an overcurrent component (110) and a BMS component (130), wherein the BMS component (130) is electrically connected to a battery pack and an external electrical device, respectively; the overcurrent component comprises a battery side module and a load side module which are electrically connected to each other, wherein the battery side module is used to be electrically connected to the battery pack, and the load side module is used to be electrically connected to the external electrical device, at least part of the overcurrent component is arranged opposite to the first opening (240), and at least part of the BMS component (130) is arranged opposite to the third opening.

4. The high voltage power distribution unit according to claim 3, characterized in that: The first cover body (310) and the bottom wall (230) are arranged along a first direction, the installation cavity (220) includes a first sub-cavity (221) and a second sub-cavity (223) arranged along the first direction, the first sub-cavity is arranged close to the first cover body (310), the flow component (110) is installed in the first sub-cavity (221), and the BMS component (130) is installed in the second sub-cavity (223).

5. The high voltage distribution unit according to claim 4, characterized in that: The second opening (211) has a first sub-port (212) and a second sub-port (213), the first sub-port (212) is connected to the first sub-cavity (221), the second sub-port (213) is connected to the second sub-cavity (223), a part of the second cover body (330) covers the first sub-port (212), and a part of the second cover body (330) covers the second sub-port (213).

6. The high voltage power distribution unit according to claim 3, characterized in that: The side wall (210) has a first sub-wall (214), a wiring space is formed between one side of the electrical component and the first sub-wall (214), the high-voltage distribution unit also includes a wiring harness assembly (400), the wiring harness assembly (400) is used to pass through the wiring space to connect the electrical component, and the second opening is opened in the first sub-wall (214).

7. The high voltage distribution unit according to claim 4, characterized in that: The box body (200) further comprises a first reinforcing assembly (250) and a partition (260) which are arranged between the first cover body (310) and the bottom wall (230); the first reinforcing assembly (250) and the first cover body (310) form the first sub-cavity (221); the first reinforcing assembly (250) and the bottom wall (230) form the second sub-cavity (223); the partition (260) is fixed to a side of the first reinforcing assembly (250) close to the first cover body (310); and part of the BMS assembly (130) is fixedly connected to the first reinforcing assembly (250).

8. The high voltage power distribution unit according to claim 7, characterized in that: The BMS assembly (130) includes a first BMS (133) and a second BMS (134), wherein the first BMS (133) is fixedly connected to the first reinforcing assembly (250), and the second BMS (134) is installed on the bottom wall (230).

9. The high voltage power distribution unit according to claim 2, characterized in that: The box body (200) further comprises a second reinforcing assembly (270), the second reinforcing assembly (270) being connected to the bottom wall (230) and being located on a side of the bottom wall (230) facing the first cover body (310), and the second BMS (134) being fixedly connected to the second reinforcing assembly (270).

10. The high voltage power distribution unit according to claim 9, characterized in that: The BMS assembly further comprises a bracket (131) and a third BMS (135); one end of the bracket (131) is connected to the second reinforcing assembly (270), and the other end extends in a direction close to the first cover body (310), and forms a first installation space (280) with the bottom wall (230); at least part of the second BMS (134) is located in the first installation space (280); the third BMS (135) is located on a side of the bracket (131) away from the bottom wall (230), and is connected to the bracket (131); the third BMS (135) is located between the first BMS (133) and the second BMS (134).

11. A vehicle, characterized in that: It comprises an electrically connected high-voltage power distribution device and a battery pack, wherein the high-voltage power distribution device comprises an electrically connected high-voltage power distribution component and a high-voltage power distribution unit as described in any one of claims 1 to 10, wherein the high-voltage power distribution unit is electrically connected to the battery pack, and the high-voltage power distribution component is used to be electrically connected to the high-voltage power distribution component unit.

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