High-voltage power distribution unit and vehicle

Abstract

The utility model provides a high-voltage power distribution unit and a vehicle, the high-voltage power distribution unit comprises a cover plate assembly, an electrical assembly, a shell assembly and a wire harness assembly, the cover plate assembly comprises a box cover and a connector installed on the box cover, and the connector is used for being electrically connected with external electrical equipment; the electrical assembly is used for being electrically connected with the battery pack and the connector. The shell assembly is connected with the box cover and comprises a bottom wall and a frame, the bottom wall and the box cover are oppositely arranged in the first direction, the frame is fixed between the box cover and the bottom wall, at least part of the electrical assembly is installed in the frame, and the frame forms a row line interval extending in the first direction; one end of the wire harness assembly is connected with the connector, and the other end passes through the row wire interval and is used for connecting the electrical assembly. According to the invention, the wire harness assembly can be spaced through the row wires, the row wires are short in distance, the wiring is regular, and the installation, maintenance and arrangement are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, concretely relates to a high voltage distribution unit and vehicle. BACKGROUND

[0002] The high voltage distribution unit (PDU) is responsible for distributing the power output by the car battery or generator to each system and device reasonably, ensuring that they obtain stable power supply.

[0003] In the related art, in order to reinforce the high voltage distribution unit, a frame is arranged in the box. However, due to the existence of the frame, part of the space in the box is occupied, so that the wire harness in the high voltage distribution unit needs to bypass the frame, resulting in disordered wiring, which is difficult to install, maintain and arrange. SUMMARY

[0004] The embodiment of the utility model provides a high voltage distribution unit and vehicle, can improve the technical problem of wire harness disordered wiring in high voltage distribution unit.

[0005] In the first aspect, the embodiment of the utility model provides a high voltage distribution unit, comprising:

[0006] The cover plate assembly comprises a box cover and a connector mounted on the box cover, and the connector is used for electrical connection with external electrical equipment;

[0007] The electrical assembly is used for electrical connection with the battery pack and the connector respectively;

[0008] The shell assembly is connected with the box cover and comprises a bottom wall and a frame, the bottom wall is arranged opposite to the box cover along a first direction, the frame is fixed between the box cover and the bottom wall, at least part of the electrical assembly is mounted in the frame, and the frame is formed with a row line interval extending along the first direction; and

[0009] The wire harness assembly is connected with the connector at one end and passes through the row line interval at the other end, and is used for connecting the electrical assembly.

[0010] In an embodiment, the shell assembly further comprises a side wall, opposite ends of the side wall are connected to the box cover and the bottom wall respectively, the side wall comprises a first side wall and a third side wall arranged along a second direction, the second direction is perpendicular to the first direction, and the row line interval is arranged on one side of the frame facing the first side wall, or one side of the frame facing the third side wall.

[0011] In an embodiment, the row line interval is arranged on one side of the frame facing the first side wall, the first side wall is provided with a second opening opposite to the row line interval, and the shell assembly further comprises a side cover for covering the second opening.

[0012] In an embodiment, the frame comprises a fixedly connected frame body and a first connecting piece, the frame body is fixedly connected with the side wall, the first connecting piece is arranged between the box cover and the bottom wall and close to the first side wall, a first mounting cavity is arranged between the first connecting piece and the box cover, a second mounting cavity is arranged between the first connecting piece and the bottom wall, the first connecting piece is formed with the row line interval for connecting the first mounting cavity and the second mounting cavity.

[0013] In an embodiment, the frame further comprises a second connecting piece, the second connecting piece is located between the box cover and the bottom wall, and one end of the second connecting piece is fixed to the first connecting piece, and the other end thereof extends towards the direction close to the third side wall.

[0014] In an embodiment, the frame further comprises a third connecting piece, the third connecting piece is located between the box cover and the bottom wall, one end of the third connecting piece is connected to the end of the second connecting piece close to the third side wall, and the other end thereof extends towards the direction close to the bottom wall and is connected to the end of the frame body close to the bottom wall.

[0015] In an embodiment, the frame further comprises a fourth connecting piece, one end of the fourth connecting piece is connected to the first connecting piece, and the other end thereof extends towards the direction close to the box cover and is connected to the end of the frame body close to the box cover.

[0016] In an embodiment, the first connecting piece is a plurality of, the plurality of first connecting pieces extend along a third direction, the third direction is perpendicular to the second direction, the row line interval is formed between two adjacent first connecting pieces, the frame further comprises a fifth connecting piece, two ends of the fifth connecting piece are connected to two adjacent first connecting pieces respectively, and the fifth connecting piece and the first connecting piece are arranged along the second direction.

[0017] In an embodiment, the fifth connecting piece comprises a first branch, a second branch and a third branch, opposite ends of the second branch are respectively bent and connected with the first branch and the third branch, the end of the first branch away from the second branch is fixedly connected with one of two adjacent first connecting pieces, the end of the third branch away from the second branch is fixedly connected with the other of two adjacent first connecting pieces, and the second branch is arranged spaced apart from the first connecting piece along the second direction.

[0018] In an embodiment, the fifth connecting piece further comprises a fourth branch, one end of the fourth branch is fixedly connected with the first branch, and the other end thereof is connected with the side of the first connecting piece towards the bottom wall.

[0019] In a second aspect, the embodiment of the utility model provides a vehicle, including high voltage distribution unit above.

[0020] The embodiment of the utility model has the advantages of

[0021] In the embodiment of the utility model, high voltage distribution unit is electrically connected with battery pack through electrical assembly, and is electrically connected with external electrical equipment through electrical assembly and connector, and frame is fixed between box cover and bottom wall, and is used for supporting and strengthening box cover and bottom wall, so that shell assembly has greater supporting strength. At least part of electrical assembly is installed in frame, so that shell assembly can better protect electrical assembly. Frame is formed with line interval extending along first direction, one end of wire harness assembly is connected with connector, and opposite end passes through line interval and is used for connecting electrical assembly. Connector and electrical assembly are connected through wire harness assembly, so as to be electrically connected with external electrical equipment through connector and electrical assembly. In the embodiment of the application, one end of wire harness assembly is connected with connector, and the other end extends from the side of box cover to the electrical assembly located in shell assembly, that is, the extension direction of wire harness assembly as a whole is actually first direction, and line interval is arranged to extend along first direction, so that wire harness assembly can pass through frame through line interval, and does not need to bypass frame from side, line distance is short, wiring is regular, and installation, maintenance and arrangement are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0023] Figure 1 It is the explosion drawing of partial structure of high voltage distribution unit provided by the embodiment of the utility model,

[0024] Figure 2 It is the explosion drawing of high voltage distribution unit removing side cover provided by the embodiment of the utility model,

[0025] Figure 3 It is Figure 2 Structure schematic view of shell assembly in

[0026] Figure 4 It is Figure 3 Local enlarged view of A in

[0027] Figure 5 It is Figure 3 Structure schematic view of frame in the first view of

[0028] Figure 6 is Figure 3 a structural diagram of a second perspective of the frame in

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 100, cover plate assembly; 110, box cover; 120, connector;

[0031] 200, electrical assembly;

[0032] 300, housing assembly; 310, bottom wall; 330, frame; 331, row line interval; 332, frame body; 333, first connecting piece; 334, second connecting piece; 335, third connecting piece; 336, fourth connecting piece; 337, fifth connecting piece; 3371, first branch arm; 3373, second branch arm; 3375, third branch arm; 3377, fourth branch arm; 340, side wall; 341, first side wall; 342, second opening; 343, third side wall; 344, second side wall; 345, fourth side wall; 350, side cover;

[0033] 500, wire harness assembly;

[0034] 610, first mounting cavity; 630, second mounting cavity. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, the orientation words such as 'up' and 'down' are generally used to refer to the up and down of the device in the actual use or working state, and the specific is the direction of the drawing in the drawing; and 'inner' and 'outer' are used in relation to the outline of the device.

[0036] In a first aspect, please refer to Figure 1 The high-voltage power distribution unit (PDU) is responsible for reasonably distributing the power output by the car battery or generator to each system and device to ensure that they obtain stable power supply.

[0037] In a first aspect, please refer to Figure 1 and Figure 2 The high-voltage power distribution unit comprises a cover plate assembly 100, an electrical assembly 200, a housing assembly 300 and a wire harness assembly 500.

[0038] The cover assembly 100 comprises a box cover 110 and a connector 120 mounted on the box cover, the connector 120 being used for electrical connection with external electrical equipment; and an electrical assembly 200 used for electrical connection with the battery pack and the connector 120 respectively.

[0039] That is, the high-voltage power distribution unit is electrically connected with the battery pack through the electrical assembly 200, and is electrically connected with the external electrical equipment through the electrical assembly 200 and the connector 120. The external electrical equipment can be other required electrical structures of the vehicle, such as an electric motor, an air conditioner compressor, a charging system, etc. Thus, the power output by the battery pack can be distributed.

[0040] The housing assembly 300 is connected with the box cover 110, and comprises a bottom wall 310 and a frame 330. The bottom wall 310 is arranged opposite to the box cover 110 along the first direction, and the frame 330 is fixed between the box cover 110 and the bottom wall 310, and is used for supporting and strengthening the box cover 110 and the bottom wall 310, so that the housing assembly 300 has greater supporting strength. At least part of the electrical assembly 200 is mounted in the frame 330, so that the housing assembly 300 can better protect the electrical assembly 200.

[0041] Please refer to Figure 3 and Figure 4 The frame 330 is formed with a row line interval 331 extending along the first direction. One end of the wire harness assembly 500 is connected with the connector 120, and the opposite end passes through the row line interval 331 and is used for connecting the electrical assembly 200. The connector 120 and the electrical assembly 200 are connected through the wire harness assembly 500, so that the external electrical equipment can be electrically connected with the electrical assembly 200 through the connector 120.

[0042] In the high-voltage power distribution unit, there are many wire harnesses. In the related art, in order to reinforce the high-voltage power distribution unit, a frame is arranged in the box. However, due to the existence of the frame, part of the space in the box is occupied, so that the wire harnesses in the high-voltage power distribution unit need to bypass the frame, resulting in disordered wiring and difficulty in installation, maintenance and arrangement.

[0043] In the embodiments of the present application, the frame 330 is formed with a row line interval 331 extending along the first direction, one end of the wiring harness assembly 500 is connected to the connector 120, and the other end passes through the row line interval 331 to connect the electrical component 200. In other words, one end of the wiring harness assembly 500 is connected to the connector 120, and the other end extends from the position of the box cover 110 to the electrical component 200 located in the housing assembly 300, that is, the extension direction of the whole wiring harness assembly 500 is actually the first direction. In the embodiments of the present application, the row line interval 331 is arranged to extend along the first direction, so that the wiring harness assembly 500 passes through the row line interval 331 and is connected to the electrical component without bypassing the frame from the side, so that the row line distance in the high-voltage power distribution unit is short, the wiring is regular, and installation, maintenance and arrangement are facilitated.

[0044] In some embodiments, the housing assembly 300 further includes a side wall 340, the opposite ends of the side wall 340 are connected to the box cover 110 and the bottom wall 310 respectively, the side wall 340 includes a first side wall 341 and a third side wall 343 arranged along a second direction, the second direction is perpendicular to the first direction, and the row line interval 331 is opened on the side of the frame 330 facing the first side wall 341 or the side of the frame 330 facing the third side wall 343. In other words, one of the side of the frame 330 facing the first side wall 341 and the side of the frame 330 facing the third side wall 343 is provided with the row line interval 331.

[0045] In these embodiments, the row line interval 331 is opened on the side of the frame 330 facing the first side wall 341 or the side of the frame 330 facing the third side wall 343, that is, the wiring harness assembly 500 is concentrated to wire from one side, that is, to wire from between the electrical component 200 and the first side wall 341 or to wire from between the electrical component 200 and the third side wall 343, so that the wiring is more regular.

[0046] Please refer to Figure 1 In some embodiments, the row line interval 331 is opened on the side of the frame 330 facing the first side wall 341, the first side wall 341 is provided with a second opening 342 opposite to the row line interval 331, and the housing assembly 300 further includes a side cover 350 for covering the second opening 342.

[0047] The second opening 342 is covered or opened by the side cover 350. In this way, when overhauled, the second opening 342 and the row line interval 331 opposite to the second opening 342 are exposed by opening the side cover 350, and the wiring harness assembly 500 located therein can be seen by the overhauling personnel, so that the wiring harness assembly 500 can be conveniently arranged, installed, replaced, overhauled and the like.

[0048] In some embodiments, the other end of the wiring harness assembly can extend from one side of the electrical assembly, the wiring is concentrated on one side of the electrical assembly, and the row line interval 331 is also located on this side, that is, almost all of the wiring harness assembly can be wired from one side of the electrical assembly, and connected to the electrical assembly by passing through the row line interval 331 located on this side of the electrical assembly, greatly reducing the wiring distance.

[0049] It is easy to understand that the wiring harness assembly 500 in the present application does not include all the wiring harnesses of the high-voltage power distribution unit, but includes most of the wiring harnesses of the high-voltage power distribution unit. Please refer to Figure 2 It can be seen that most of the wiring harnesses of the high-voltage power distribution unit are located on one side of the electrical assembly, so that only a small part or no wiring harness exists on the other side of the electrical assembly, so that most of the wiring harnesses can be concentrated and wired and installed from one side of the electrical assembly, making the wiring inside the high-voltage power distribution unit more orderly.

[0050] In some embodiments, the frame 330 includes a fixedly connected frame body 332 and a first connecting piece 333. The frame body 332 is fixedly connected with the side wall 340.

[0051] In some examples, the external contour of the high-voltage power distribution unit can be a cuboid, the box cover 110 and the bottom wall 310 and the side wall 340 can be enclosed to form a mounting space inside the high-voltage power distribution unit, and the frame 330 is mounted in the mounting space. The frame 330 is located between the box cover and the bottom wall, and the frame 330 is located between the side walls. The frame 330 can be fixedly connected with the side wall 340, and in addition, the frame 330 can also be fixedly connected with the bottom wall 310, and the frame 330 can also be fixedly connected with the box cover 110.

[0052] The main function of the frame 330 is to reinforce the high-voltage power distribution unit, so that the high-voltage power distribution unit has greater strength and is not easy to deform when subjected to a larger force. The frame body 332 is the part of the frame 330 close to the box cover 110, the bottom wall 310 and the side wall 340. The frame body 332 constitutes the external contour of the entire frame 330, which can be a cuboid frame.

[0053] Please refer to Figure 5 and Figure 6The frame 330 further comprises a first connecting piece 333 fixedly connected with the frame body 332. The first connecting piece 333 is mainly arranged between the box cover 110 and the bottom wall 310. The internal space of the high-voltage power distribution unit is divided by the first connecting piece 333. The first connecting piece 333 and the box cover 110 are provided with a first mounting cavity 610. The first connecting piece and the bottom wall 310 are provided with a second mounting cavity 630. Part of the electrical components 200 can be installed in the first mounting cavity 610, such as Hall, copper bar, etc. Part of the electrical components 200 can be installed in the second mounting cavity 630, such as BMS, etc. Thus, part of the electrical components 200 is installed in the first mounting cavity, and part of the electrical components 200 is installed in the second mounting cavity. The first connecting piece 333 is arranged close to the first side wall 341. The first connecting piece 333 is provided with a row line spacing 331 for connecting the first mounting cavity 610 and the second mounting cavity 630. Thus, the wire harness assembly 500 connected to the electrical components 200 can pass through the row line spacing 331 after connecting part of the electrical components 200 in the first mounting cavity 610, and directly enter the second mounting cavity 630 to connect part of the electrical components 200 in the second mounting cavity 630. Alternatively, after one end of the wire harness assembly 500 is connected to the connector 120 of the box cover, it passes through the first mounting cavity 610, the row line spacing 331, and enters the second mounting cavity 630 to connect the electrical components 200 in the second mounting cavity.

[0054] Specifically, the side wall 340 can further comprise a second side wall 344 and a fourth side wall 345 arranged along a third direction. That is, the first side wall 341, the second side wall 344, the third side wall 343, and the fourth side wall 345 are sequentially bent and connected. The third direction is perpendicular to the second direction.

[0055] In some embodiments, the frame 330 can further comprise a second connecting piece 334. The second connecting piece 334 can be located between the box cover 110 and the bottom wall 310. One end of the second connecting piece 334 is fixed to the first connecting piece 333, and the opposite end extends towards the direction close to the third side wall 343.

[0056] One end of the second connecting piece 334 is fixedly connected with the first connecting piece 333. Since the first connecting piece 333 is arranged close to the first side wall 341, that is, one end of the second connecting piece 334 is arranged close to the first side wall 341, and the opposite end of the second connecting piece 334 extends along the side close to the third side wall 343. Thus, by arranging the second connecting piece 334, the frame 330 can be reinforced along the second direction.

[0057] The opposite end of the second connecting piece 334 extends along a side close to the third side wall 343 and can be fixedly connected with the frame body 332, and in some examples, the second connecting piece 334 and the frame body 332 can be welded. Alternatively, other connecting pieces can be arranged in the middle to be fixedly connected with the frame body 332, and in some examples, the connection can be welding.

[0058] In some embodiments, the frame 330 can further include a third connecting piece 335. The third connecting piece 335 can be located between the box cover 110 and the bottom wall 310. One end of the third connecting piece 335 is connected to the end of the second connecting piece 334 close to the third side wall 343, and the opposite end extends toward the direction close to the bottom wall 310 and is connected to the end of the frame body 332 close to the bottom wall. In some examples, the third connecting piece 335 and the second connecting piece 334 can be welded. In some examples, the third connecting piece 335 and the frame body 332 can be welded. In this way, through the third connecting piece 335, the part where the second mounting cavity 630 of the high-voltage power distribution unit is located is reinforced in the first direction, so that it is not easy to deform.

[0059] In some embodiments, the frame 330 further includes a fourth connecting piece 336. One end of the fourth connecting piece 336 is connected to the first connecting piece 333, and in some examples, the fourth connecting piece 336 and the first connecting piece 333 can be welded. The opposite end extends toward the direction close to the box cover 110 and is connected to the end of the frame body 332 close to the box cover 110. In some examples, the fourth connecting piece 336 and the frame body 332 can be welded. In this way, through the fourth connecting piece 336, the part where the first mounting cavity 610 of the high-voltage power distribution unit is located is reinforced in the first direction, so that it is not easy to deform.

[0060] In some embodiments, the first connecting piece 333 is a plurality of first connecting pieces 333 extending in a third direction perpendicular to the second direction, and a row line interval 331 is formed between adjacent two first connecting pieces 333. The frame 330 further includes a fifth connecting piece 337, both ends of the fifth connecting piece 337 are connected with adjacent two first connecting pieces 333, and the first connecting piece 333 is reinforced by the fifth connecting piece 337. The fifth connecting piece 337 and the first connecting piece 333 are arranged in the second direction, so that the fifth connecting piece 337 does not block the row line interval 331 between the first connecting pieces 333 in the first direction, so that the wiring distance of the wire harness assembly 500 is smaller.

[0061] In some embodiments, the fifth connecting piece 337 comprises a first branch 3371, a second branch 3373 and a third branch 3375, the opposite ends of the second branch 3373 are respectively bent and connected with the first branch 3371 and the third branch 3375, the end of the first branch 3371 away from the second branch is fixedly connected with one of the adjacent two first connecting pieces 333, the end of the third branch 3375 away from the second branch 3373 is fixedly connected with the other of the adjacent two first connecting pieces 333, in this way, the adjacent two first connecting pieces 333 can be reinforced, so that the row line interval 331 can be stably arranged and is not easy to deform. In the second direction, the second branch 3373 is arranged in the interval of the first connecting pieces 333. In this way, the wire harness assembly 500 can be avoided, and the installation and arrangement of the wire harness assembly 500 are facilitated.

[0062] Please combine Figure 5 and Figure 6 In some embodiments, the fifth connecting piece further comprises a fourth branch 3377, one end of the fourth branch 3377 is fixedly connected with the first branch 3371, and the other end is connected with the first connecting piece 333 towards the side of the bottom wall 310. In this way, the bottom of the first connecting piece 333, i.e. the side of the first connecting piece 333 towards the bottom wall 310, is supported by the fourth branch 3377.

[0063] The first branch 3371, the second branch 3373, the third branch 3375 and the fourth branch 3377 of the fifth connecting piece can reinforce the bottom and the side of the first connecting piece 333, so that the first connecting piece 333 is more stable and is not easy to deform, thereby the row line interval 331 can be stably arranged and is not easy to deform. Moreover, the fifth connecting piece will not block the row line interval 331 in the first direction, and wiring is facilitated.

[0064] The second aspect further provides a vehicle comprising the high-voltage power distribution unit.

[0065] In the embodiment of the present application, the high-voltage distribution unit in the vehicle is electrically connected with the battery pack through the electrical components, and is electrically connected with the external electrical equipment through the electrical components and the connector, the frame is fixed between the box cover and the bottom wall, and is used for supporting and strengthening the box cover and the bottom wall, so that the shell assembly has greater supporting strength. At least part of the electrical components is installed in the frame, so that the shell assembly can better protect the electrical components. The frame is formed with row line intervals extending along the first direction, one end of the wire harness assembly is connected with the connector, and the opposite end passes through the row line intervals and is used for connecting the electrical components. The connector and the electrical components are connected through the wire harness assembly, so as to be electrically connected with the external electrical equipment through the connector and the electrical components. In the embodiment of the present application, one end of the wire harness assembly is connected with the connector, and the other end extends from the side where the box cover is located to the electrical components located in the shell assembly, that is, the extension direction of the wire harness assembly as a whole is actually the first direction, and the row line intervals are arranged to extend along the first direction, so that the wire harness assembly only needs to pass through the frame through the row line intervals, and does not need to bypass the frame from the side, the wiring distance is short, the wiring is regular, and the installation, maintenance and arrangement are convenient.

[0066] The above has introduced the embodiment of the present application in detail, and the principle and implementation mode of the present application have been described by applying specific examples. The above embodiment is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the present application.

Claims

1. A high voltage power distribution unit, characterized by, The application relates to a battery pack, which comprises a cover plate assembly (100), an electrical assembly (200), a housing assembly (300) and a wire harness assembly (500). The cover plate assembly (100) comprises a box cover (110) and a connector (120) mounted on the box cover (110), the connector (120) being used for electrical connection with external electrical equipment. The electrical assembly (200) is used for electrical connection with a battery pack and the connector (120) respectively. The housing assembly (300) is connected with the box cover (110) and comprises a bottom wall (310) and a frame (330), the bottom wall (310) is arranged opposite to the box cover (110) along a first direction, the frame (330) is fixed between the box cover (110) and the bottom wall (310), at least part of the electrical assembly (200) is mounted in the frame (330), and the frame (330) is formed with a row line interval (331) extending along the first direction. The wire harness assembly (500) is connected with the connector (120) at one end and passes through the row line interval (331) to be used for connection with the electrical assembly. The housing assembly (300) further comprises a side wall (340), opposite ends of the side wall (340) are connected with the box cover (110) and the bottom wall (310) respectively, the side wall (340) comprises a first side wall (341) and a third side wall (343) arranged along a second direction, the second direction is perpendicular to the first direction, and the row line interval (331) is arranged on one side of the frame (330) facing the first side wall (341) or one side of the frame (330) facing the third side wall (343).

2. The high voltage distribution unit of claim 1, wherein, The row line interval (331) is arranged on one side of the frame (330) facing the first side wall (341), the first side wall (341) is formed with a second opening (342) opposite to the row line interval (331), and the housing assembly (300) further comprises a side cover (350) used for covering the second opening (342).

3. The high voltage distribution unit of claim 2, wherein, The frame (330) comprises a frame main body (332) and a first connecting piece (333) fixedly connected, the frame main body (332) is fixedly connected with the side wall (340), the first connecting piece (333) is arranged between the box cover (110) and the bottom wall (310) and close to the first side wall (341), a first mounting cavity (610) is arranged between the first connecting piece (333) and the box cover (110), a second mounting cavity (630) is arranged between the first connecting piece (333) and the bottom wall (310), and the first connecting piece (333) is formed with the row line interval (331) for communication between the first mounting cavity (610) and the second mounting cavity (630).

4. The high voltage distribution unit of claim 3, wherein, The frame (330) further comprises a second connecting piece (334), one end of the second connecting piece (334) is fixed to the first connecting piece (333), and the other end opposite to the one end extends towards a direction close to the third side wall (343).

5. The high voltage distribution unit of claim 4, wherein, ​ 6. The high voltage distribution unit of claim 5, wherein, The frame (330) further comprises a third connecting piece (335), one end of the third connecting piece (335) is connected to the second connecting piece (334) near one end of the third side wall (343), and the other end opposite to the one end extends towards the bottom wall (310) and is connected to the frame body (332) near one end of the bottom wall.

7. The high voltage distribution unit of claim 6, wherein, The frame (330) further comprises a fourth connecting piece (336), one end of the fourth connecting piece (336) is connected to the first connecting piece (333), and the other end opposite to the one end extends towards the box cover (110) and is connected to the frame body (332) near one end of the box cover (110).

8. The high voltage distribution unit of claim 6, wherein, The first connecting piece (333) is a plurality of first connecting pieces (333) extending along a third direction perpendicular to the second direction, and the row line interval (331) is formed between two adjacent first connecting pieces (333). The frame (330) further comprises a fifth connecting piece (337), both ends of the fifth connecting piece (337) are connected to two adjacent first connecting pieces (333), and the fifth connecting piece (337) is arranged along the second direction with the first connecting piece (333).

9. The high voltage distribution unit of claim 8, wherein, The fifth connecting piece (337) comprises a first branch arm (3371), a second branch arm (3373) and a third branch arm (3375), and opposite ends of the second branch arm (3373) are respectively connected to the first branch arm (3371) and the third branch arm (3375) by being bent. An end of the first branch arm (3371) away from the second branch arm (3373) is fixedly connected to one of the two adjacent first connecting pieces (333), and an end of the third branch arm away from the second branch arm is fixedly connected to the other of the two adjacent first connecting pieces (333). In the second direction, the second branch arm is arranged to be spaced apart from the first connecting piece.

10. The high voltage distribution unit of claim 9, wherein, The fifth connecting piece (337) further comprises a fourth branch arm (3377), one end of the fourth branch arm (3377) is fixedly connected to the first branch arm (3371), and the other end is connected to the side of the first connecting piece (333) towards the bottom wall (310).

11. A vehicle characterized by comprising: A high-voltage power distribution unit comprising any one of claims 1 to 10.

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