High-voltage distribution box and vehicle

Abstract

The utility model provides a high-voltage distribution box and a vehicle, and belongs to the technical field of new energy vehicles. The high-voltage distribution box comprises a box body and a box cover. The box cover covers an opening in the top of the box body; a bracket assembly is arranged in the box body; the support assembly comprises a first support part located on the bottom edge of the box body. The first support part comprises a bearing part, a first connecting part and a second connecting part, the first connecting part and the second connecting part are located on the two opposite sides of the bearing part respectively, and the bearing part is parallel to the bottom face of the box body and used for installing and fixing electrical parts in the box body. The first connecting part is fixedly connected with the bottom face of the box body, and the second connecting part is fixedly connected with the side wall of the box body. According to the high-voltage distribution box, the box body strength of the high-voltage distribution box is improved, and the safety of the high-voltage distribution box is improved.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle technology, and in particular to a high-voltage distribution box and vehicle. Background Technology

[0002] To achieve centralized power distribution for new energy vehicles, these vehicles typically use high-voltage power distribution units (PDUs) for coordinated control.

[0003] High-voltage distribution boxes integrate electrical components such as relays, copper busbars, connectors, and high and low voltage wiring harnesses, thus they are quite heavy.

[0004] However, the high-voltage distribution boxes in the relevant technologies have insufficient box strength. Under some harsh working conditions, such as mines and mountain roads where the vibration amplitude is large, they may crack, causing electrical safety accidents. Utility Model Content

[0005] This application provides a high-voltage distribution box and vehicle, which can solve the problem of insufficient box strength in high-voltage distribution boxes.

[0006] The technical solution is as follows:

[0007] On the one hand, a high-voltage distribution box is provided, the high-voltage distribution box comprising: a box body and a box cover;

[0008] The lid covers the opening at the top of the box;

[0009] The box is equipped with a support assembly;

[0010] The support assembly includes a first support member located at the bottom edge of the housing;

[0011] The first support component includes a support portion, a first connecting portion, and a second connecting portion. The first connecting portion and the second connecting portion are located on opposite sides of the support portion. The support portion is arranged parallel to the bottom surface of the housing and is used to install and fix electrical components inside the housing.

[0012] The first connecting part is fixedly connected to the bottom surface of the box, and the second connecting part is fixedly connected to the side wall of the box.

[0013] In some embodiments, the first connecting portion is located at the bottom of the support portion, and the second connecting portion is located at the top of the support portion.

[0014] In some embodiments, the number of the first support members is multiple, and each bottom edge of the housing is provided with one of the first support members.

[0015] In some embodiments, the first connecting portion is fixedly connected to the bottom surface of the housing in parallel, and / or the second connecting portion is fixedly connected to the side wall of the housing in parallel.

[0016] In some embodiments, the support assembly further includes a second support member located on the bottom surface of the housing, and the second support member is fixedly connected to the bottom surface of the housing and the first support member, respectively.

[0017] In some embodiments, at least one of the first support member and the second support member extends in a direction perpendicular to each other.

[0018] In some embodiments, the first support member has a positioning notch, and the end of the second support member is located within the positioning notch and is fixedly connected to the first support member.

[0019] In some embodiments, the support assembly further includes at least one third support member located on the side wall of the housing.

[0020] In some embodiments, the box is rectangular, and at least two third support members are provided on the two side walls of the box in the corresponding length direction; the at least two third support members extend along the length direction of the box and are distributed at intervals along the height direction of the box.

[0021] On the other hand, a vehicle is provided that includes the high-voltage distribution box described in this application.

[0022] The beneficial effects of the technical solution provided in this application include at least the following:

[0023] The high-voltage distribution box of this application has a first support member at the bottom edge of the box body. The first support member uses a load-bearing part to install and fix the electrical components inside the box body, and is fixedly connected to the bottom surface of the box body through a first connecting part and fixedly connected to the side wall of the box body through a second connecting part. The first support member can connect the electrical components to the bottom surface and side wall of the box body respectively, and distribute the vibration stress generated by the electrical components to the bottom surface and side wall of the box body, so as to avoid the vibration stress generated by the electrical components being concentrated on the bottom surface of the box body, thereby improving the box body strength and safety of the high-voltage distribution box. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the high-voltage distribution box provided in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the high-voltage distribution box provided in the embodiments of this application;

[0027] Figure 3 This is a structural cross-sectional view of the first support member provided in the embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of the box provided in the embodiment of this application;

[0029] Figure 5 yes Figure 4 Enlarged view of the local structure at point A in the middle.

[0030] The reference numerals in the figure are respectively:

[0031] 1. Box body;

[0032] 101. Opening; 102. Bottom surface; 103. Side wall; 1031. Opening structure;

[0033] 2. Box lid;

[0034] 3. Support frame assembly;

[0035] 31. First support component; 311. Bearing part; 312. First connecting part; 313. Second connecting part; 314. Positioning notch; 32. Second support component; 33. Third support component. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] It should be understood that in this application, "connection" and "connected" can both refer to a mechanical connection or a physical connection. That is, A and B being connected or A and B being connected can mean that there are fastened components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and A and B are difficult to separate.

[0039] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0041] On the one hand, combined with Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a high-voltage distribution box, which includes: a box body 1 and a box cover 2; the box cover 2 covers the opening 101 on the top of the box body 1.

[0042] The housing 1 is provided with a support assembly 3; the support assembly 3 includes a first support member 31 located at the bottom edge of the housing 1.

[0043] The first support member 31 includes a bearing portion 311, a first connecting portion 312, and a second connecting portion 313. The first connecting portion 312 and the second connecting portion 313 are located on opposite sides of the bearing portion 311. The bearing portion 311 is arranged parallel to the bottom surface 102 of the enclosure 1 and is used to install and fix the electrical components inside the enclosure 1. The first connecting portion 312 is fixedly connected to the bottom surface 102 of the enclosure 1, and the second connecting portion 313 is fixedly connected to the side wall 103 of the enclosure 1.

[0044] In this embodiment, the high-voltage distribution box has a first support member 31 at the bottom edge of the box body 1. The first support member 31 uses a bearing part 311 to install and fix the electrical components inside the box body 1, and is fixedly connected to the bottom surface 102 of the box body 1 through a first connecting part 312, and fixedly connected to the side wall 103 of the box body 1 through a second connecting part 313. The first support member 31 can connect the electrical components to the bottom surface 102 and the side wall 103 of the box body 1 respectively, and disperse the vibration stress generated by the electrical components to the bottom surface 102 and the side wall 103 of the box body 1, so as to avoid the vibration stress generated by the electrical components being concentrated on the bottom surface 102 of the box body 1, thereby improving the strength of the box body 1 of the high-voltage distribution box and improving the safety of the high-voltage distribution box.

[0045] In some possible implementations, electrical components include high-voltage relays, fuses, current sensors, voltage sensors, high-voltage connectors, busbars, control circuits, and circuit boards. High-voltage relays control the on / off switching of high-voltage circuits to meet circuit control requirements under different operating conditions. Fuses, when short circuits or other faults occur, melt and disconnect the circuit, providing short-circuit protection. Current and voltage sensors measure the current and voltage in the high-voltage circuit, providing data support for condition monitoring and protection. High-voltage connectors ensure reliable electrical connections between the high-voltage distribution box and the power battery and high-voltage electrical equipment, ensuring safe power transmission. Busbars, typically made of copper or aluminum, connect various components within the high-voltage distribution box, enabling power distribution and transmission. Control circuits and circuit boards are responsible for implementing the control functions of the high-voltage distribution box, including relay control, signal acquisition and processing, and communication with other vehicle systems.

[0046] In some possible implementations, high-voltage distribution boxes are used in new energy vehicle scenarios, and their functions include at least:

[0047] Power distribution and transmission: The high-voltage DC power from the power battery is distributed to high-voltage electrical equipment such as the motor controller, drive motor, electric air conditioning compressor, PTC (Positive Temperature Coefficient) heater, and DC / DC converter according to the vehicle's operating requirements. At the same time, the high-voltage charging current from the charging interface is distributed to the power battery for charging.

[0048] Circuit control: By using switching elements such as high-voltage relays, the on / off state of each high-voltage circuit is controlled to realize the start / stop control of high-voltage electrical equipment and meet the power needs of the vehicle under different operating conditions.

[0049] Safety protection: Equipped with fuses, overcurrent protection devices, overvoltage protection devices, overheat protection devices, and leakage protection devices, etc., the circuit will be quickly cut off in the event of overload, short circuit, overvoltage, overtemperature, leakage and other faults to protect the safety of vehicles and personnel.

[0050] Status monitoring and feedback: Integrates monitoring elements such as current and voltage sensors to collect parameters such as current, voltage, and temperature of the high-voltage circuit in real time, and transmits the data to the vehicle's Battery Management System (BMS) and Vehicle Control Unit (VCU) via CAN (Controller Area Network) communication, so as to monitor and diagnose the operating status of the high-voltage system.

[0051] High-voltage interlock: The low-voltage signal confirms that the covers and high-voltage connectors of the entire high-voltage system are fully connected, ensuring the integrity and safety of the high-voltage system.

[0052] Combination Figure 3 As shown, in some embodiments, the first connecting portion 312 is located at the bottom of the supporting portion 311, and the second connecting portion 313 is located at the top of the supporting portion 311. That is, the first connecting portion 312 is located on the side of the supporting portion 311 facing the bottom surface 102 of the housing 1, and the second connecting portion 313 is located on the side of the supporting portion 311 facing away from the bottom surface 102 of the housing 1.

[0053] With the above arrangement, the first connecting part 312, the supporting part 311 and the second connecting part 313 form a stepped structure. The electrical components are installed and fixed on the supporting part 311. The vibration stress of the electrical components can be transmitted to the bottom surface 102 and the side wall 103 of the housing 1 through the first connecting part 312 and the second connecting part 313 respectively.

[0054] The stepped first support member 31 also has the advantages of convenient production and assembly, and strong load-bearing capacity. Moreover, the first support member 31 is connected to the side wall 103 of the housing 1 at a position away from the bottom edge through the second connecting part 313, which has higher structural strength.

[0055] Combination Figure 4 As shown, in some embodiments, there are multiple first support members 31, and each bottom edge of the housing 1 is provided with a first support member 31.

[0056] By arranging a first support member 31 at each bottom edge of the housing 1, the vibration stress of the electrical components can be distributed to the side wall 103 in the corresponding direction regardless of the direction of the vibration stress of the electrical components.

[0057] Combination Figure 3 As shown, in some embodiments, the first connecting part 312 is fixedly connected to the bottom surface 102 of the housing 1 in parallel, and / or the second connecting part 313 is fixedly connected to the side wall 103 of the housing 1 in parallel.

[0058] By bending the first connecting part 312 to be parallel to the bottom surface 102 of the housing 1 and bending the second connecting part 313 to be parallel to the side wall 103 of the housing 1, the first connecting part 312 and the bottom surface 102 of the housing 1 can fit together surface to surface, and the second connecting part 313 and the side wall 103 of the housing 1 can fit together surface to surface, thereby improving the reliability and strength of the connection between the first connecting part 312, the second connecting part 313 and the housing 1.

[0059] In some possible implementations, the first connecting part 312 and the bottom surface 102 of the housing 1 are fixedly connected in ways including, but not limited to, welding and bolting. The second connecting part 313 and the side wall 103 of the housing 1 are fixedly connected in ways including, but not limited to, welding and bolting.

[0060] Combination Figure 4 As shown, in some embodiments, the support assembly 3 further includes a second support member 32, which is located on the bottom surface 102 of the housing 1 and is fixedly connected to the bottom surface 102 of the housing 1 and the first support member 31, respectively.

[0061] With the above arrangement, a second support member 32 is arranged on the bottom surface 102 of the enclosure 1. The second support member 32 is used to install and fix the electrical components inside the enclosure 1. The vibration stress of the electrical components can be transmitted through the second support member 32 to the bottom surface 102 of the enclosure 1 and the first support member 31 respectively, and then distributed through the first support member 31 to the bottom surface 102 and the side wall 103 of the enclosure 1.

[0062] Combination Figure 4 As shown, in some embodiments, at least one first support member 31 and the second support member 32 extend in perpendicular directions.

[0063] By arranging the extension directions of the first support member 31 and the second support member 32 perpendicularly, a cross-shaped support structure can be formed on the bottom surface 102 of the box body 1. The vibration stress transmitted by the second support member 32 can act perpendicularly on the first support member 31, and the first support member 31 then distributes the vibration stress to the bottom surface 102 and the side wall 103 of the box body 1.

[0064] Since the vibration stress is perpendicular to the direction of action of the first support member 31, the first support member 31 can effectively resist the torsional force and will not generate additional torque, thereby ensuring the stability and reliability of the first support member 31 and reducing fatigue damage and failure caused by torsion.

[0065] Combination Figure 5 As shown, in some embodiments, the first support member 31 is provided with a positioning notch 314, and the end of the second support member 32 is located in the positioning notch 314 and is fixedly connected to the first support member 31.

[0066] In order to limit and fix the first support member 31 and the second support member 32, a positioning notch 314 is provided on the first support member 31, and the end of the second support member 32 is inserted and fixed in the positioning notch 314. The positioning notch 314 is used to accommodate the end of the second support member 32, thereby limiting and fixing the second support member 32.

[0067] In some possible implementations, the second support member 32 is provided with a first support member 31 at both ends, and each first support member 31 is provided with a positioning notch 314. The two positioning notches 314 can be used to limit and fix the two ends of the second support member 32 respectively.

[0068] Combination Figure 2 and Figure 4 As shown, in some embodiments, the support assembly 3 further includes at least one third support member 33, which is located on the side wall 103 of the housing 1.

[0069] With the above arrangement, the structural strength of the side wall 103 of the housing 1 can be improved by at least one third support member 33 arranged on the side wall 103 of the housing 1.

[0070] In some possible implementations, the number of third support members 33 may be one, two, three, etc.

[0071] Combination Figure 2 and Figure 4 As shown, in some embodiments, the box 1 is rectangular, and at least two third support members 33 are respectively provided on the two side walls 103 of the box 1 in the corresponding length direction; the at least two third support members 33 extend along the length direction of the box 1 and are distributed at intervals along the height direction of the box 1.

[0072] Since the two side walls 103 corresponding to the length direction of the box 1 have a large area and low strength, the above arrangement can improve the structural strength of the two side walls 103 corresponding to the length direction of the box 1 by at least two third support members 33.

[0073] In some possible implementations, multiple opening structures 1031 are provided on the two side walls 103 of the enclosure 1 along the corresponding length direction. The opening structures 1031 serve as channels for the wiring harnesses of electrical components inside the enclosure 1 to enter and exit. However, the opening structures 1031 will reduce the strength of the side walls 103 of the enclosure 1. Therefore, the third support member 33 is arranged on the upper and lower sides of the opening structures 1031 respectively.

[0074] On the other hand, this embodiment provides a vehicle that includes the high-voltage distribution box of this application.

[0075] The vehicle in this embodiment uses the high-voltage distribution box of this application, and has all the beneficial technical effects of all embodiments herein.

[0076] It should be noted that, in the description of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0078] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0079] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A high-voltage distribution box, characterized in that, The high-voltage distribution box includes: a box body (1) and a box cover (2); The lid (2) covers the opening (101) at the top of the box body (1); The housing (1) is equipped with a support assembly (3); The support assembly (3) includes a first support member (31) located at the bottom edge of the housing (1); The first support member (31) includes a support portion (311), a first connecting portion (312), and a second connecting portion (313). The first connecting portion (312) and the second connecting portion (313) are located on opposite sides of the support portion (311). The support portion (311) is arranged parallel to the bottom surface (102) of the housing (1) and is used to install and fix the electrical components inside the housing (1). The first connecting part (312) is fixedly connected to the bottom surface (102) of the box (1), and the second connecting part (313) is fixedly connected to the side wall (103) of the box (1).

2. The high-voltage distribution box according to claim 1, characterized in that, The first connecting part (312) is located at the bottom of the supporting part (311), and the second connecting part (313) is located at the top of the supporting part (311).

3. The high-voltage distribution box according to claim 1, characterized in that, The number of the first support member (31) is multiple, and each bottom edge of the box (1) is provided with at least one of the first support members (31).

4. The high-voltage distribution box according to claim 1, characterized in that, The first connecting part (312) is fixedly connected to the bottom surface (102) of the box (1) in parallel, and / or the second connecting part (313) is fixedly connected to the side wall (103) of the box (1) in parallel.

5. The high-voltage distribution box according to any one of claims 1 to 4, characterized in that, The bracket assembly (3) further includes a second bracket (32), which is located on the bottom surface (102) of the box (1). The second bracket (32) is fixedly connected to the bottom surface (102) of the box (1) and the first bracket (31) respectively.

6. The high-voltage distribution box according to claim 5, characterized in that, At least one of the first support member (31) and the second support member (32) extends in a direction perpendicular to each other.

7. The high-voltage distribution box according to claim 6, characterized in that, The first support member (31) is provided with a positioning notch (314), and the end of the second support member (32) is located in the positioning notch (314) and is fixedly connected to the first support member (31).

8. The high-voltage distribution box according to any one of claims 1 to 4, characterized in that, The support assembly (3) further includes at least one third support member (33), which is located on the side wall (103) of the housing (1).

9. The high-voltage distribution box according to claim 8, characterized in that, The box (1) is rectangular. At least two third support members (33) are provided on the two side walls (103) of the box (1) in the corresponding length direction. The at least two third support members (33) extend along the length direction of the box (1) and are distributed at intervals along the height direction of the box (1).

10. A vehicle, characterized in that, The vehicle includes a high-voltage distribution box as described in any one of claims 1 to 9.

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