High-voltage distribution box and vehicle

Abstract

The utility model discloses a high-voltage distribution box and a vehicle, the high-voltage distribution box comprises a housing, a support, a discharge copper bar and a first heat conduction member, the housing is a metal housing, and the support is detachably installed in the housing; the discharge copper bar is arranged on the side face, away from the shell, of the support. The first heat conduction piece is arranged on the support and used for conducting heat of the discharging copper bar towards the shell. According to the high-voltage distribution box provided by the embodiment of the utility model, the discharge copper bar can be better arranged in the shell through the bracket and the first heat conduction piece arranged on the bracket, so that the space in the shell can be effectively utilized, the height of the shell cannot be increased, the miniaturization design of the high-voltage distribution box can be further facilitated, and the cost is reduced. And heat dissipation of the discharge copper bar is also facilitated.

Description

Technical Field

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

[0002] Currently, high-voltage distribution units (PDUs) in the new energy vehicle industry are typically highly integrated designs, with key integrated components including high-voltage fuses, high-voltage relays, current sensors, and copper busbars. Due to the integration of high-voltage fuses and relays, when a large current passes through, the copper busbar connecting the fuse and relay cannot dissipate heat because both sides are heat sources. In related technologies, the heat dissipation structure within the high-voltage distribution unit (PDU) is quite complex. Some methods involve modifying the housing structure, but these modifications tend to increase the housing's volume, hindering the miniaturization design of the high-voltage distribution unit. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a high-voltage distribution box that facilitates miniaturization and also improves heat dissipation of the discharge copper busbars.

[0004] According to an embodiment of the present invention, a high-voltage distribution box includes: a housing, the housing being a metal housing; a bracket, the bracket being detachably installed inside the housing; a discharge copper busbar, the discharge copper busbar being arranged on the side of the bracket away from the housing; and a first heat-conducting element, the first heat-conducting element being disposed on the bracket for conducting heat from the discharge copper busbar toward the housing.

[0005] According to the high-voltage distribution box of this utility model embodiment, the first heat-conducting element is mounted on a bracket. The bracket allows for better arrangement of the first heat-conducting element, thus better defining the heat transfer path constructed by the first heat-conducting element. This ensures that when the discharge copper busbar dissipates heat towards the housing through the first heat-conducting element, it is less likely to interfere with other components inside the housing. Furthermore, the discharge copper busbar, through the bracket and the first heat-conducting element mounted on the bracket, can be better positioned within the housing, effectively utilizing the space inside the housing without increasing its height, thereby facilitating the miniaturization design of the high-voltage distribution box.

[0006] In some embodiments of this utility model, the bracket is provided with a heat-conducting channel, and the first heat-conducting element is located within the heat-conducting channel.

[0007] In some embodiments of this utility model, the first heat-conducting element includes a heat-conducting medium filled in the heat-conducting channel.

[0008] In some embodiments of this invention, the thermally conductive medium includes thermally conductive paste.

[0009] In some embodiments of this utility model, the heat conduction channel includes a through hole penetrating the bracket in the direction from the housing to the discharge copper busbar.

[0010] In some embodiments of this utility model, the through hole is a circular hole.

[0011] In some embodiments of this utility model, multiple through holes are provided, and the multiple through holes are arranged in a row and column.

[0012] In some embodiments of this utility model, the bracket is a plastic bracket.

[0013] In some embodiments of this invention, the support is a one-piece molded part made of polyethylene, polymethyl methacrylate or methyl methacrylate.

[0014] In some embodiments of this utility model, the high-voltage distribution box further includes: a second heat-conducting element, which is disposed between the bracket and the discharge copper busbar, and the end of the first heat-conducting element near the discharge copper busbar abuts against the second heat-conducting element.

[0015] In some embodiments of this utility model, the bracket is provided with a first positioning groove on the side facing the discharge copper busbar, and at least a portion of the second heat-conducting element is accommodated in the first positioning groove.

[0016] In some embodiments of this utility model, the second heat-conducting element includes a heat-conducting pad, at least a portion of which is fitted into the first positioning groove.

[0017] In some embodiments of this utility model, the high-voltage distribution box further includes a cooling component, which is disposed between the bracket and the housing, and the end of the first heat-conducting component near the housing abuts against the cooling component.

[0018] In some embodiments of this utility model, the bracket is provided with a second positioning groove on the side facing the housing, and at least a portion of the cooling component is accommodated in the second positioning groove.

[0019] In some embodiments of this utility model, the inner peripheral wall of the second positioning groove is provided with a plurality of buckles, and the cooling component is fixed in the second positioning groove by the buckles.

[0020] In some embodiments of the present invention, the cooling element includes a cold plate, at least a portion of which is fitted into the second positioning groove.

[0021] In some embodiments of this utility model, the housing is provided with a first fixing part, and the outer periphery of the cold plate is provided with a second fixing part extending out of the second positioning groove. The first fixing part and the second fixing part cooperate to fix the cold plate to the housing.

[0022] In some embodiments of this utility model, the bracket further includes a third fixing part, wherein the first fixing part, the second fixing part and the third fixing part are all provided with fixing holes, and the fixing member is adapted to pass through the fixing holes to fix the bracket and the cold plate to the housing.

[0023] In some embodiments of this utility model, the first fixing part includes a fixing post, the fixing hole is located on the fixing post, and the second fixing part abuts against the end face of the fixing post.

[0024] In some embodiments of this utility model, the high-voltage distribution box further includes a fuse, which is detachably mounted on the bracket.

[0025] In some embodiments of this utility model, the bracket is provided with a receiving groove, and part of the fuse is located in the receiving groove.

[0026] In some embodiments of this utility model, along a direction parallel to the bottom wall of the housing, the bracket includes a first section and a second section, the fuse is installed in the first section, and the discharge copper busbar is located on the side of the second section away from the housing.

[0027] This utility model also proposes a vehicle having the high-voltage distribution box described in the above embodiments.

[0028] According to the embodiments of the present invention, the vehicle is equipped with a high-voltage distribution box as described above, which enables the vehicle to use electricity through the high-voltage distribution box in a better way, and the miniaturized design of the high-voltage distribution box is also beneficial to the space arrangement of the vehicle.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a structural schematic diagram of a high-voltage distribution box according to an embodiment of the present invention.

[0032] Figure 2This is a schematic diagram of the structure of a high-voltage distribution box according to an embodiment of the present invention, which removes the fuse, discharge copper busbar, first heat-conducting component and second heat-conducting component.

[0033] Figure 3 This is an exploded view of the bracket, first heat-conducting component, second heat-conducting component, cooling component, and discharge copper busbar according to an embodiment of the present invention.

[0034] Figure 4 This is an exploded view of the bracket and the second heat-conducting component according to an embodiment of the present invention.

[0035] Figure 5 This is an exploded view of a bracket and cooling component according to an embodiment of the present invention.

[0036] Figure label:

[0037] 100. High-voltage distribution box;

[0038] 1. Housing; 10. Mounting cavity; 11. First fixing part;

[0039] 2. Bracket; 20. Heat conduction channel; 21. First positioning groove; 22. Second positioning groove; 221. Buckle; 23. Receiving groove; 24. First fastening hole; 25. Second fastening hole;

[0040] 3. Discharge copper busbar; 31. Fourth fastening hole;

[0041] 4. First heat-conducting component;

[0042] 5. Second heat-conducting component;

[0043] 6. Cooling component; 61. First plate; 62. Second plate;

[0044] 7. Fuse; 71. First electrical connection terminal; 72. Second electrical connection terminal;

[0045] 8. Connectors;

[0046] 90. Fixing hole; 91. Second fixing part; 92. Third fixing part. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; 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 utility model according to the specific circumstances.

[0050] The following is for reference. Figures 1-5 Description of a high-voltage distribution box 100 according to an embodiment of the present utility model.

[0051] like Figure 1 and Figure 3 As shown, the high-voltage distribution box 100 according to an embodiment of the present utility model includes a housing 1, a bracket 2, a discharge copper busbar 3 and a first heat-conducting element 4. The bracket 2 is detachably installed inside the housing 1. The discharge copper busbar 3 is arranged on the side of the bracket 2 away from the housing 1. The first heat-conducting element 4 is disposed on the bracket 2 and is used to conduct heat from the discharge copper busbar 3 toward the housing 1.

[0052] For example, the housing 1 is a metal housing. For instance, the material of the housing 1 is a metal material such as aluminum alloy or magnesium alloy. This application does not limit this.

[0053] For example, the housing 1 includes an upward-opening mounting cavity 10, and the bracket 2 is detachably mounted on the bottom wall of the mounting cavity 10. A fuse 7 is also installed inside the housing 1. One end of the discharge copper busbar 3 is electrically connected to the first electrical connection end 71 of the fuse 7, and the other end can be connected to a conductive element. The conductive element can extend outside the housing 1 and be electrically connected to a plug-in 8 disposed on the outer wall of the housing 1. Similarly, the second electrical connection end 72 of the fuse 7 can be electrically connected to another plug-in 8 disposed on the outer wall of the housing 1 through the conductive element.

[0054] When the discharge copper busbar 3 conducts electricity, the heat generated on the discharge copper busbar 3 can be conducted towards the housing 1 through the first heat-conducting element 4, thereby enabling the discharge copper busbar 3 to dissipate heat better. Furthermore, the discharge copper busbar 3 is not directly connected to the housing 1, but is installed directly or indirectly inside the housing 1, thereby reducing the assembly difficulty of the discharge copper busbar 3.

[0055] Furthermore, the first heat-conducting element 4 is mounted on the bracket 2, which allows the first heat-conducting element 4 to be arranged in a better manner through the bracket 2, thereby better defining the heat transfer path constructed by the first heat-conducting element 4. This makes it less likely to interfere with other components inside the housing 1 when the discharge copper busbar 3 dissipates heat towards the housing 1 through the first heat-conducting element 4.

[0056] Furthermore, the discharge copper busbar 3 can be well arranged inside the housing 1 through the bracket 2 and the first heat-conducting component 4 arranged on the bracket 2, thereby effectively utilizing the space inside the housing 1 without increasing the height of the housing 1, which is conducive to the miniaturization design of the high voltage distribution box 100.

[0057] According to the high-voltage distribution box 100 of this utility model embodiment, the first heat-conducting element 4 is disposed on the bracket 2. The bracket 2 can better arrange the first heat-conducting element 4, thereby better defining the heat transfer path constructed by the first heat-conducting element 4. This makes it less likely to interfere with other components inside the housing 1 when the discharge copper busbar 3 dissipates heat towards the housing 1 through the first heat-conducting element 4. Furthermore, the discharge copper busbar 3 can also be better arranged inside the housing 1 through the bracket 2 and the first heat-conducting element 4 disposed on the bracket 2, thereby effectively utilizing the space inside the housing 1 and avoiding an increase in the height of the housing 1. This is beneficial to the miniaturization design of the high-voltage distribution box 100.

[0058] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the bracket 2 is provided with a heat conduction channel 20, and the first heat conduction element 4 is located inside the heat conduction channel 20. That is to say, when the first heat conduction element 4 conducts heat from the discharge copper busbar 3 toward the housing 1, the heat can be transferred within the heat conduction channel 20, which can effectively reduce the impact of the heat generated by the discharge copper busbar 3 on the internal components of the housing 1.

[0059] In some embodiments of this utility model, the first heat-conducting element 4 includes a heat-conducting medium filled in the heat-conducting channel 20.

[0060] In other words, by filling the heat conduction channel 20 with a heat conduction medium, the heat conduction cross section of the first heat conduction element 4 can be increased, thereby better conducting the heat of the discharge copper busbar 3 toward the housing 1, which can improve the heat dissipation efficiency of the discharge copper busbar 3.

[0061] In some embodiments of this invention, the thermally conductive medium includes thermally conductive paste.

[0062] In other words, thermal paste is usually made of metal oxide powder (such as alumina, zinc oxide, etc.) mixed with organosilicon or other polymer materials. It has good thermal conductivity and can fill the thermal channel 20 well, increasing the heat transfer efficiency, thereby effectively transferring heat from the power generation copper busbar to the housing 1 to help reduce the temperature of the power generation copper busbar.

[0063] For example, in addition to thermal paste, thermal conductive media also include thermal grease, thermal adhesive, thermal pads, thermal fluids (such as water, ethylene glycol, etc., used in liquid cooling systems) and some metal materials (such as copper, aluminum, etc., used to make heat sinks, heat pipes, and other heat dissipation components), etc., and this application does not limit them.

[0064] In some embodiments of this application, such as Figure 2 , Figure 4 and Figure 5 As shown, in the direction from the housing 1 to the discharge copper busbar 3, the heat conduction channel 20 includes a through hole penetrating the support 2.

[0065] As shown in the figure, the direction from the housing 1 to the discharge copper busbar 3 can be vertical. The through hole penetrates the bracket 2 in the vertical direction. The bracket 2 abuts against the bottom wall of the housing 1. The discharge copper busbar 3 is arranged on the top surface of the bracket 2. The heat generated by the discharge copper busbar 3 can be conducted towards the bottom wall of the housing 1 through the first heat-conducting element 4 in the through hole. In addition, when the heat-conducting medium is filled towards the through hole, the filling difficulty can also be reduced.

[0066] In some embodiments of this application, the through hole is a circular hole. Thus, when the heat-conducting medium is filled in the through hole, the heat transfer cross section of the heat-conducting medium is circular. On the one hand, this can reduce the occupied area, and on the other hand, it can better increase the heat transfer cross section, so that the discharge copper busbar 3 can better conduct heat towards the shell 1 through the heat-conducting medium.

[0067] In some embodiments of this application, multiple through holes are provided. By providing multiple through holes, the amount of heat-conducting medium can be increased, which means that the heat transfer path from the discharge copper busbar 3 to the housing 1 can be increased, thereby improving the heat dissipation efficiency of the discharge copper busbar 3.

[0068] For example, multiple through holes are arranged in rows and columns. That is, the through holes are arranged in a neat row and column form, which is convenient for design and manufacturing. In addition, the spacing between the through holes is relatively uniform, so that after the conductive medium is filled, the multiple heat transfer paths from the discharge copper busbar 3 to the housing 1 can be arranged more evenly, thereby dissipating heat from the discharge copper busbar 3 more evenly, which is beneficial to improving the heat dissipation effect of the discharge copper busbar 3.

[0069] In some embodiments of this application, the bracket 2 is a plastic bracket. Plastic brackets have poor heat dissipation capacity. Therefore, when the first heat-conducting element 4 conducts heat in the heat conduction channel 20, it is not easy for the heat to escape through the bracket 2. This allows the heat to be stably conducted from the discharge copper busbar 3 toward the housing 1, which can further reduce the impact of the heat generated by the discharge copper busbar 3 on the internal components of the housing 1.

[0070] In some embodiments of this application, the stent 2 is a one-piece molded part constructed from polyethylene, polymethyl methacrylate, or methyl methacrylate. Polyethylene possesses good corrosion resistance, water resistance, and flexibility. Polymethyl methacrylate or methyl methacrylate exhibits high transparency, high mechanical strength, and chemical stability. One-piece molding allows the stent 2 to achieve higher structural strength and effectively reduces manufacturing difficulty and improves production efficiency.

[0071] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the high-voltage distribution box 100 also includes: a second heat-conducting element 5, which is disposed between the bracket 2 and the discharge copper busbar 3, and the end of the first heat-conducting element 4 near the discharge copper busbar 3 abuts against the second heat-conducting element 5.

[0072] In other words, the heat generated on the discharge copper busbar 3 can be transferred to the second heat conductor 5 first, and then transferred to the housing 1 through the first heat conductor 4. For example, the first heat conductor 4 includes a heat-conducting medium filled in multiple through holes. Thus, when the heat generated on the discharge copper busbar 3 is transferred to the second heat conductor 5, the second heat conductor 5 can transfer the heat to the heat-conducting medium in the multiple through holes more evenly, which helps to make the heat dissipation of the discharge copper busbar 3 more uniform.

[0073] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the bracket 2 has a first positioning groove 21 on the side facing the discharge copper busbar 3, and at least a portion of the second heat-conducting element 5 is accommodated in the first positioning groove 21.

[0074] In other words, the first positioning groove 21 can restrict the position of the second heat conductor 5, making it difficult for the position of the second heat conductor 5 to shift. Thus, when the discharge copper busbar 3 transfers heat to the second heat conductor 5, the second heat conductor 5 can stably transfer heat towards the first heat conductor 4.

[0075] Furthermore, in one example, the second heat-conducting element 5 is completely located within the first positioning groove 21, and in Figure 3In the vertical direction shown, the upper surface of the second heat-conducting element 5 is coplanar with the upper surface of the bracket 2. Thus, the discharge copper busbar 3 can make good contact with the upper surface of the second heat-conducting element 5 and the upper surface of the bracket 2 in a close fit, which is beneficial for the discharge copper busbar 3 to transfer heat to the second heat-conducting element 5. In another example, the second heat-conducting element 5 can also extend upward from the first positioning groove 21, for example, it can partially wrap around the side of the discharge copper busbar 3, thereby increasing the contact area between the second heat-conducting element 5 and the discharge copper busbar 3, thereby better increasing the heat transferred by the discharge copper busbar 3 to the first heat-conducting element 4 and the housing 1 through the second heat-conducting element 5. Of course, after the second heat-conducting element 5 extends upward from the first positioning groove 21, there can be other ways of cooperating with the discharge copper busbar 3, which is not limited in this application.

[0076] In some embodiments of this utility model, the second heat-conducting element 5 includes a heat-conducting pad, at least a portion of which is fitted into the first positioning groove 21.

[0077] like Figure 3 As shown, the thermal pad includes a first part and a second part along the left-right direction. In the front-back direction, the width of the first part is smaller than the width of the second part. Similarly, the first positioning groove 21 is also constructed with the same shape. More specifically, in the projection plane perpendicular to the up-down direction, the shape and area of ​​the first positioning groove 21 and the thermal pad are the same. Thus, the first positioning groove 21 can better limit the thermal pad, and the thermal pad can also be better assembled into place, which can improve assembly efficiency.

[0078] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the high-voltage distribution box 100 also includes a cooling component 6, which is disposed between the bracket 2 and the housing 1, and the end of the first heat-conducting component 4 near the housing 1 abuts against the cooling component 6.

[0079] In other words, the heat generated on the discharge copper busbar 3 can first be transferred to the second heat-conducting element 5, and then transferred to the housing 1 through the first heat-conducting element 4. For example, the first heat-conducting element 4 includes a heat-conducting medium filled in multiple through holes. Thus, when the heat generated on the discharge copper busbar 3 is transferred to the second heat-conducting element 5, the second heat-conducting element 5 can transfer the heat to the heat-conducting medium in the multiple through holes more evenly. The heat-conducting medium can transfer the heat to the cooling element 6. The cooling element 6 can absorb the heat better. Furthermore, the heat transferred to the cooling element 6 can also be transferred to the outside through the housing 1, thereby improving the heat dissipation efficiency of the discharge copper busbar 3.

[0080] In some embodiments of this utility model, such as Figure 5 As shown, the bracket 2 has a second positioning groove 22 on the side facing the housing 1, and at least a portion of the cooling component 6 is accommodated in the second positioning groove 22.

[0081] In other words, the second positioning groove 22 can restrict the position of the cooling element 6, making it difficult for the position of the cooling element 6 to shift, so that when the first heat-conducting element 4 transfers heat to the cooling element 6, the cooling element 6 can stably transfer heat toward the housing 1.

[0082] Furthermore, in one example, the cooling element 6 is completely located within the second positioning groove 22, and in Figure 5 In the vertical direction shown, the lower surface of the cooling element 6 is coplanar with the lower surface of the bracket 2. Therefore, the cooling element 6 can fit well against the bottom wall of the housing 1, which is beneficial for the cooling element 6 to transfer heat to the bottom wall. In another example, the cooling element 6 can also extend partially from the second positioning groove 22, thereby increasing the contact area between the cooling element 6 and the housing 1, thereby better increasing the heat transferred from the first heat-conducting element 4 to the housing 1 through the cooling element 6. Of course, there can be other ways for the cooling element 6 to fit with the bottom wall of the housing 1 after it extends partially from the second positioning groove 22. This application does not limit this.

[0083] In some embodiments of this utility model, the inner peripheral wall of the second positioning groove 22 is provided with a plurality of buckles 221, and the cooling component 6 is fixed in the second positioning groove 22 by the buckles 221.

[0084] For example, when assembling the high-voltage distribution box 100, the cooling component 6 can be installed in the second positioning groove 22 first. The buckle 221 can fix the cooling component 6 in the second positioning groove 22. Then, the bracket 2 of the cooling component 6 is fixedly connected to the housing 1. The assembly is simple and convenient, and the assembly efficiency can be improved.

[0085] In some embodiments of the present invention, the cooling element 6 includes a cold plate, at least a portion of which is fitted into the second positioning groove 22.

[0086] refer to Figure 5 As shown, the cold plate includes a first plate 61 and a second plate 62. The first plate 61 and the second plate 62 extend in two mutually perpendicular directions, so that the cold plate is roughly L-shaped. The length of the first plate 61 is greater than that of the second plate 62. The first plate 61 can be fitted into the second positioning groove 22. One side wall of the second positioning groove 22 has an opening through which the second plate 62 can extend. After the first plate 61 is fitted into the second positioning groove 22, it can be fixed by a buckle 221.

[0087] In some embodiments of this utility model, such as Figures 2-5As shown, the housing 1 is provided with a first fixing part 11, and the outer periphery of the cold plate is provided with a second fixing part 91 extending out of the second positioning groove 22. The first fixing part 11 and the second fixing part 91 cooperate to fix the cold plate to the housing 1.

[0088] refer to Figures 2-5 As shown, the second fixing part 91 is located on the second plate 62. Through the first fixing part 11 and the second fixing part 91, on the one hand, the stability of the cold plate can be improved, making the cold plate less prone to tilting. That is, the first fixing part 11 and the second fixing part 91 cooperate to form the first positioning of the cold plate, while the positioning of the first plate 61 by the second positioning groove 22 is the second positioning of the cold plate. Through the two positioning, the cold plate is more stably accommodated in the second groove. On the other hand, through the cooperation of the first fixing part 11 and the second fixing part 91, the heat of the discharge copper busbar 3 can be transferred to the housing 1 through the first fixing part 11 and the second fixing part 91 after passing through the second heat conductor 5, the first heat conductor 4 and the cold plate, which can increase the heat dissipation path of the discharge copper busbar 3.

[0089] In some embodiments of this utility model, such as Figures 2-5 As shown, the bracket 2 also includes a third fixing part 92, wherein the first fixing part 11, the second fixing part 91 and the third fixing part 92 are all provided with fixing holes 90, and the fixing member is adapted to pass through the fixing hole 90 to fix the bracket 2 and the cold plate to the housing 1.

[0090] For example, the fastener can be a screw, and the fixing hole 90 can be a screw hole. The structure is simple, and the fixing method is convenient and quick, which can improve assembly efficiency.

[0091] In some embodiments of this utility model, the first fixing part 11 includes a fixing post, a fixing hole 90 is located on the fixing post, and the second fixing part 91 abuts against the end face of the fixing post. That is, the fixing post can provide space for the fixing hole 90 to be arranged in the vertical direction, so that the fixing member can be more secure when it is engaged with the fixing hole 90 of the fixing post.

[0092] In some embodiments of this utility model, such as Figure 1 As shown, the high-voltage distribution box 100 also includes a fuse 7, which is detachably mounted on the bracket 2.

[0093] For example, the housing 1 includes an upward-opening mounting cavity 10, and the bracket 2 is detachably mounted on the bottom wall of the mounting cavity 10. A fuse 7 is also installed inside the housing 1. One end of the discharge copper busbar 3 is electrically connected to the first electrical connection end 71 of the fuse 7, and the other end can be connected to a conductive element. The conductive element can extend outside the housing 1 and be electrically connected to a plug-in 8 disposed on the outer wall of the housing 1. Similarly, the second electrical connection end 72 of the fuse 7 can be electrically connected to another plug-in 8 disposed on the outer wall of the housing 1 through the conductive element.

[0094] For example, fuse 7 can be a fusible link.

[0095] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the bracket 2 is provided with a receiving groove 23, and part of the fuse 7 is located in the receiving groove 23.

[0096] like Figure 2 As shown, the bracket 2 has a first fastening hole 24 and a second fastening hole 25, which are spaced apart in the left and right direction. The receiving groove 23 is located between the first fastening hole 24 and the second fastening hole 25, and part of the fuse 7 is located in the receiving groove 23. This can effectively reduce the space occupied by the fuse 7 in the vertical direction and make the structure inside the high voltage distribution box 100 more compact, which is beneficial to the miniaturization design of the high voltage distribution box 100.

[0097] In some embodiments of this utility model, such as Figures 1-3 As shown, along the direction parallel to the bottom wall of the housing 1, the bracket 2 includes a first section and a second section. The fuse 7 is installed in the first section, and the discharge copper busbar 3 is located on the side of the second section away from the housing 1.

[0098] In other words, the fuse 7 and the discharge copper busbar 3 can be arranged on the bracket 2 in the horizontal direction, which can better reduce the space occupied in the vertical direction, thereby helping to reduce the thickness of the high-voltage distribution box 100 in the vertical direction.

[0099] Further reference Figure 1 and Figure 3 As shown, at the second fastening hole 25 on the right side of the receiving groove 23, the fuse 7 may have a third fastening hole opposite to the second fastening hole 25, and the left end of the discharge copper busbar 3 has a fourth fastening hole 31 opposite to the third fastening hole. Thus, the discharge copper busbar 3 and the fuse 7 can be fixed on the bracket 2 by fasteners (such as screws), and the discharge copper busbar 3 and the fuse 7 are electrically connected.

[0100] This utility model also proposes a vehicle having the high-voltage distribution box 100 described in the above embodiments.

[0101] According to the present utility model embodiment, the vehicle is equipped with the high-voltage distribution box 100 of the above embodiment, which enables the vehicle to use electricity through the high-voltage distribution box 100 in a better way, and the miniaturized design of the high-voltage distribution box 100 is also conducive to the space arrangement of the vehicle.

[0102] The high-voltage distribution box 100 and other components and operations of the vehicle according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0103] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-voltage distribution box (100), characterized in that, include: The housing (1) is a metal housing; A bracket (2) is detachably mounted inside the housing (1); A discharge copper busbar (3) is arranged on the side of the bracket (2) away from the housing (1); The first heat-conducting element (4) is disposed on the bracket (2) and is used to conduct the heat of the discharge copper busbar (3) toward the housing (1).

2. The high-voltage distribution box (100) according to claim 1, characterized in that, The bracket (2) is provided with a heat conduction channel (20), and the first heat conduction element (4) is located in the heat conduction channel (20).

3. The high-voltage distribution box (100) according to claim 2, characterized in that, The first heat-conducting element (4) includes a heat-conducting medium filled in the heat-conducting channel (20).

4. The high-voltage distribution box (100) according to claim 3, characterized in that, The thermally conductive medium includes thermally conductive paste.

5. The high-voltage distribution box (100) according to claim 2, characterized in that, In the direction from the housing (1) to the discharge copper busbar (3), the heat conduction channel (20) includes a through hole penetrating the bracket (2).

6. The high-voltage distribution box (100) according to claim 5, characterized in that, The through hole is a round hole.

7. The high-voltage distribution box (100) according to claim 5, characterized in that, The through holes are provided in multiple ways, and the multiple through holes are arranged in a row and column.

8. The high-voltage distribution box (100) according to claim 1, characterized in that, The bracket (2) is a plastic bracket.

9. The high-voltage distribution box (100) according to claim 1, characterized in that, The support (2) is a one-piece molded part made of polyethylene, polymethyl methacrylate or methyl methacrylate.

10. The high-voltage distribution box (100) according to claim 1, characterized in that, Also includes: The second heat-conducting element (5) is disposed between the bracket (2) and the discharge copper busbar (3), and the end of the first heat-conducting element (4) near the discharge copper busbar (3) abuts against the second heat-conducting element (5).

11. The high-voltage distribution box (100) according to claim 10, characterized in that, The bracket (2) has a first positioning groove (21) on its side facing the discharge copper busbar (3), and at least a portion of the second heat-conducting element (5) is accommodated in the first positioning groove (21).

12. The high-voltage distribution box (100) according to claim 11, characterized in that, The second heat-conducting element (5) includes a heat-conducting pad, at least a portion of which is fitted into the first positioning groove (21).

13. The high-voltage distribution box (100) according to claim 1, characterized in that, Also includes: Cooling component (6) is disposed between the bracket (2) and the housing (1), and the end of the first heat-conducting component (4) near the housing (1) abuts against the cooling component (6).

14. The high-voltage distribution box (100) according to claim 13, characterized in that, The bracket (2) is provided with a second positioning groove (22) on the side facing the housing (1), and at least a portion of the cooling component (6) is accommodated in the second positioning groove (22).

15. The high-voltage distribution box (100) according to claim 14, characterized in that, The inner peripheral wall of the second positioning groove (22) is provided with a plurality of buckles (221), and the cooling component (6) is fixed in the second positioning groove (22) by the buckles (221).

16. The high-voltage distribution box (100) according to claim 14, characterized in that, The cooling component (6) includes a cold plate, at least a portion of which is fitted into the second positioning groove (22).

17. The high-voltage distribution box (100) according to claim 16, characterized in that, The housing (1) is provided with a first fixing part (11), and the outer periphery of the cold plate is provided with a second fixing part (91) extending out of the second positioning groove (22). The first fixing part (11) and the second fixing part (91) cooperate to fix the cold plate to the housing (1).

18. The high-voltage distribution box (100) according to claim 17, characterized in that, The bracket (2) further includes a third fixing part (92), wherein the first fixing part (11), the second fixing part (91) and the third fixing part (92) are all provided with fixing holes (90), and the fixing member is adapted to pass through the fixing holes (90) to fix the bracket (2) and the cold plate to the housing (1).

19. The high-voltage distribution box (100) according to claim 18, characterized in that, The first fixing part (11) includes a fixing post, the fixing hole (90) is located on the fixing post, and the second fixing part (91) abuts against the end face of the fixing post.

20. The high-voltage distribution box (100) according to claim 1, characterized in that, It also includes a fuse (7) which is detachably mounted on the bracket (2).

21. The high-voltage distribution box (100) according to claim 20, characterized in that, The bracket (2) is provided with a receiving groove (23), and part of the fuse (7) is located in the receiving groove (23).

22. The high-voltage distribution box (100) according to claim 20, characterized in that, Along a direction parallel to the bottom wall of the housing (1), the bracket (2) includes a first section and a second section, the fuse (7) is installed in the first section, and the discharge copper busbar (3) is located on the side of the second section away from the housing (1).

23. A vehicle, characterized in that, Includes the high-voltage distribution box (100) according to any one of claims 1-22.

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