High voltage junction box

Abstract

The utility model belongs to the technical field of high-voltage power distribution, and relates to a high-voltage junction box. The high-voltage junction box comprises a shell and a junction module arranged on the shell, the junction module comprises an input copper bus, a first output wiring harness and a second output wiring harness, the first output wiring harness and the second output wiring harness are electrically connected to the input copper bus respectively. The high-voltage junction box occupies a small space, and the high-voltage junction box can be used as a high-voltage junction structure and a high-voltage connector.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage power distribution, in particular to a high-voltage distribution box. Background Art

[0002] The existing electric vehicle power supply system requires high-voltage connectors. High-voltage connectors refer to connectors with an AC voltage of more than 1000V or a DC voltage of more than 1500V, which are mainly used in complete vehicles, charging facilities, industrial equipment, medical equipment, etc.

[0003] When performing high-voltage power distribution, it is generally necessary to connect a high-voltage wire harness to the high-voltage connector, and the high-voltage wire harness usually needs to be plugged into the high-voltage connector through a wire harness plug. This requires more parts than the existing high-voltage power distribution method, the connection is more complicated, and the overall space occupied is larger. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a high-voltage distribution box in view of the technical problem that the existing high-voltage power distribution method occupies a large space.

[0005] To solve the above technical problems, on the one hand, an embodiment of the utility model provides a high-voltage junction box, including a shell and a junction module arranged on the shell, the junction module including an input copper bus, a first output wiring harness and a second output wiring harness, the first output wiring harness and the second output wiring harness are respectively electrically connected to the input copper bus.

[0006] According to the high-voltage junction box of the embodiment of the utility model, only one input copper busbar is provided in the junction module, and the same input copper busbar is connected to two output wiring harnesses at the same time, so that the size of the high-voltage junction box is small and the space occupied is small. In addition to being used as a high-voltage junction structure, the high-voltage junction box can also be used as a high-voltage connector. When used as a high-voltage junction structure, the input copper busbar can be directly connected to the all-in-one high-voltage distribution box to reduce the cost of power distribution. When used as a high-voltage connector, it can meet the demand of less input and more output, while saving space.

[0007] Optionally, the output end of the input copper busbar passes through the shell and extends into the shell;

[0008] The input end of the first output wire harness and the input end of the second output wire harness respectively pass through the housing and extend into the housing;

[0009] The input end of the first output wiring harness and the input end of the second output wiring harness are electrically connected to the output end of the input copper busbar respectively.

[0010] Optionally, the shell includes an outer shell and an insulating frame arranged in the outer shell, and the output end of the input copper bus is installed on the insulating frame.

[0011] Optionally, the input end of the first output wiring harness and the input end of the second output wiring harness are electrically connected to the same position on the output end of the input copper busbar.

[0012] Optionally, a first mounting hole is provided on the insulating frame;

[0013] The high-voltage junction box further includes a first mounting bolt, which passes through the input end of the first output wiring harness, the input end of the second output wiring harness and the output end of the input copper busbar and is threadedly connected to the first mounting hole.

[0014] Optionally, the input end of the first output wiring harness is electrically connected to the output end of the input copper busbar, and the input end of the second output wiring harness is electrically connected to the input end of the first output wiring harness.

[0015] Optionally, the insulating frame is provided with a second mounting hole and a third mounting hole;

[0016] The high-voltage junction box also includes a second mounting bolt and a third mounting bolt. The second mounting bolt passes through the input end of the first output wiring harness and the output end of the input copper busbar and is threadedly connected to the second mounting hole. The third mounting bolt passes through the input end of the first output wiring harness and the input end of the second output wiring harness and is threadedly connected to the third mounting hole.

[0017] Optionally, the input copper busbar is coated with an insulating layer;

[0018] The high-voltage junction box also includes a tail buckle, which is installed between the shell and the insulating layer.

[0019] Optionally, a cross-sectional area of ​​cables in the first output wiring harness is greater than a cross-sectional area of ​​cables in the second output wiring harness.

[0020] Optionally, a plurality of the branching modules are provided, and the plurality of branching modules are isolated from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a high-voltage junction box provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the high voltage junction box from another angle;

[0023] Figure 3 yes Figure 1 Schematic diagram of the high voltage junction box with the upper cover removed;

[0024] Figure 4 yes Figure 1Exploded view of the high voltage junction box.

[0025] The reference numerals in the specification are as follows:

[0026] 1. Shell; 11. Outer shell; 111. Bottom shell; 112. Upper cover; 113. Sealing ring; 12. Insulating frame; 121. First mounting hole; 122. Second mounting hole; 123. Third mounting hole;

[0027] 2, branch line module; 2a, first module; 2b, second module; 21, 21a, 21b, input copper bar; 211a, third through hole; 22, 22a, 22b, first output wiring harness; 221a, 221b, first through hole; 222b, fourth through hole; 23, 23a, 23b, second output wiring harness; 231a, 231b, second through hole;

[0028] 3. First mounting bolt;

[0029] 4. Second mounting bolt;

[0030] 5. The third mounting bolt;

[0031] 6. Insulation layer;

[0032] 7. Tail button;

[0033] 8. Tail buckle sealing ring. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] like Figures 1 to 4 As shown, the high-voltage junction box provided by the embodiment of the utility model includes a shell 1 and a junction module 2 arranged on the shell 1, the junction module 2 includes an input copper bus 21, a first output wiring harness 22 and a second output wiring harness 23, and the first output wiring harness 22 and the second output wiring harness 23 are electrically connected to the input copper bus 21 respectively.

[0036] The high-voltage junction box provided by the embodiment of the utility model has only one input copper bar 21 in the junction module 2, and the same input copper bar 21 is connected to two output wiring harnesses at the same time, so that the size of the high-voltage junction box is small and the space occupied is small. In addition to being used as a high-voltage junction structure, the high-voltage junction box can also be used as a high-voltage connector. When used as a high-voltage junction structure, the input copper bar 21 can be directly connected to the all-in-one high-voltage distribution box to reduce the cost of power distribution. When used as a high-voltage connector, it can meet the demand of less input and more output, while saving space.

[0037] In one embodiment, if Figures 1 to 4 As shown, the output end of the input copper bar 21 passes through the housing 1 and extends into the housing 1. The input end of the first output wiring harness 22 and the input end of the second output wiring harness 23 pass through the housing 1 and extend into the housing 1 respectively.

[0038] The input end of the first output wiring harness 22 and the input end of the second output wiring harness 23 are electrically connected to the output end of the input copper bus 21 , respectively, so as to realize the electrical connection between the first output wiring harness 22 and the second output wiring harness 23 and the input copper bus 21 .

[0039] In one embodiment, if Figure 3 and Figure 4 As shown, the housing 1 includes an outer shell 11 and an insulating frame 12 arranged in the outer shell 11, and the output end of the input copper bus 21 is installed on the insulating frame 12 to avoid electrical conduction between the input copper bus 21 and the outer shell 11.

[0040] In one embodiment, the insulating frame 12 is made of plastic.

[0041] In one embodiment, if Figures 1 to 4 As shown, there are two branching modules 2, which are the first module 2a and the second module 2b. The first module 2a includes an input copper bar 21a, a first output wire harness 22a and a second output wire harness 23a, and the first module 21b includes an input copper bar 21b, a first output wire harness 22b and a second output wire harness 23b.

[0042] The first module 2a and the second module 2b are isolated from each other to avoid mutual interference.

[0043] In other embodiments not shown in the figures, the line splitting module 2 is provided with one, or the line splitting module 2 is provided with at least three to meet different requirements.

[0044] In one embodiment, if Figure 3 and Figure 4As shown, in the first module 2a, the input end of the first output harness 22a and the input end of the second output harness 23a are electrically connected to the same position on the output end of the input copper bus 21a. On the one hand, the electrical connection between the first output harness 22a and the second output harness 23a and the input copper bus 21a can be achieved; on the other hand, the internal structure of the high-voltage junction box can be simplified.

[0045] In one embodiment, if Figure 3 and Figure 4 As shown, the insulating frame 12 is provided with a first mounting hole 121, the input end of the first output harness 22a is provided with a first through hole 221a, the input end of the second output harness 23a is provided with a second through hole 231a, and the output end of the input copper bus 21a is provided with a third through hole 211a.

[0046] The high-voltage junction box also includes a first mounting bolt 3, which passes through the first through hole 221a of the first output wiring harness 22a, the second through hole 231a of the second output wiring harness 23a and the third through hole 211a of the input copper bus 21a and is threadedly connected to the first mounting hole 121 to electrically connect the input end of the first output wiring harness 22a and the input end of the second output wiring harness 23a to the same position on the output end of the input copper bus 21a.

[0047] In one embodiment, if Figure 3 and Figure 4 As shown, in the second module 2b, the input end of the first output harness 22b is electrically connected to the output end of the input copper bus 21b, and the input end of the second output harness 23b is electrically connected to the input end of the first output harness 22b. On the one hand, the electrical connection between the first output harness 22b and the second output harness 23b and the input copper bus 21b in the second module 2b can be realized; on the other hand, the internal structure of the high-voltage junction box can be simplified.

[0048] In one embodiment, if Figure 3 and Figure 4 As shown, the insulating frame 12 is provided with a second mounting hole 122 and a third mounting hole 123. The input end of the first output harness 22b is provided with a first through hole 221b and a fourth through hole 222b, the input end of the second output harness 23b is provided with a second through hole 231b, and the output end of the input copper busbar 21b is provided with a third through hole 211b.

[0049] The high-voltage junction box also includes a second mounting bolt 4 and a third mounting bolt 5. The second mounting bolt 4 passes through the fourth through hole 222b of the first output wiring harness 22b and the third through hole 211b of the input copper bus 21b and is threadedly connected to the second mounting hole 122 to achieve electrical connection between the input end of the first output wiring harness 22b and the output end of the input copper bus 21b.

[0050] The third mounting bolt 5 passes through the first through hole 221b of the first output harness 22b and the second through hole 231b of the second output harness 23b and is threadedly connected to the third mounting hole 123 to achieve electrical connection between the input end of the second output harness 23b and the input end of the first output harness 22b.

[0051] In one embodiment, if Figures 1 to 4 As shown, the input copper bar 21 is covered with an insulating layer 6. The high-voltage junction box also includes a tail buckle 7, which is installed between the housing 1 and the insulating layer 6. Thus, the input copper bar 21 is installed on the housing 1, while preventing the housing 1 and the input copper bar 21 from being conductive.

[0052] In one embodiment, the cross-sectional area of ​​the cables in the first output harness 22 is greater than the cross-sectional area of ​​the cables in the second output harness 23 , so that the first output harness 22 and the second output harness 23 can meet the requirements of various application scenarios.

[0053] In a specific embodiment, the cross-sectional area of ​​the cables in the first output harness 22 is 16 mm 2 , 25mm 2 , 35mm 2 , 50mm 2 , 70mm 2 The cross-sectional area of ​​the cables in the second output harness 23 is 4 mm 2 、6mm 2 , 10mm 2 .

[0054] In one embodiment, if Figure 4 As shown, the outer shell 11 includes a bottom shell 111 and an upper cover 112, and the insulating frame 12 is installed on the bottom shell 111. The bottom shell 111 is provided with a first through hole for the input copper bus 21 to pass through, a second through hole for the first output wiring harness 22 to pass through, and a third through hole for the second output wiring harness 23 to pass through, so as to facilitate the output end of the input copper bus 21, the input end of the first output wiring harness 22 and the input end of the second output wiring harness 23 to extend into the shell 1 respectively.

[0055] In one embodiment, if Figures 2 to 4As shown, the tail buckle 7 is arranged at the first through hole, and a tail buckle sealing ring 8 is arranged between the tail buckle 7 and the bottom shell 111 to ensure the sealing between the shell 1 and the input copper bus 21.

[0056] In one embodiment, if Figure 4 As shown, a sealing ring 113 is provided between the bottom shell 111 and the upper cover 112 to ensure the sealing of the housing 1 .

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high voltage junction box, characterized in that: It comprises a shell and a branching module arranged on the shell, wherein the branching module comprises an input copper bus, a first output wiring harness and a second output wiring harness, and the first output wiring harness and the second output wiring harness are electrically connected to the input copper bus respectively.

2. The high voltage junction box according to claim 1, characterized in that: The output end of the input copper bar passes through the shell and extends into the shell; The input end of the first output wire harness and the input end of the second output wire harness respectively pass through the housing and extend into the housing; The input end of the first output wiring harness and the input end of the second output wiring harness are electrically connected to the output end of the input copper busbar respectively.

3. The high voltage junction box according to claim 2, characterized in that: The shell comprises an outer shell and an insulating frame arranged in the outer shell, and the output end of the input copper bus is installed on the insulating frame.

4. The high voltage junction box according to claim 3, characterized in that: The input end of the first output wiring harness and the input end of the second output wiring harness are electrically connected to the same position on the output end of the input copper busbar.

5. The high voltage junction box according to claim 4, characterized in that: The insulating frame is provided with a first mounting hole; The high-voltage junction box further includes a first mounting bolt, which passes through the input end of the first output wiring harness, the input end of the second output wiring harness and the output end of the input copper busbar and is threadedly connected to the first mounting hole.

6. The high voltage junction box according to claim 3, characterized in that: The input end of the first output wiring harness is electrically connected to the output end of the input copper busbar, and the input end of the second output wiring harness is electrically connected to the input end of the first output wiring harness.

7. The high voltage junction box according to claim 6, characterized in that: The insulating frame is provided with a second mounting hole and a third mounting hole; The high-voltage junction box also includes a second mounting bolt and a third mounting bolt. The second mounting bolt passes through the input end of the first output wiring harness and the output end of the input copper busbar and is threadedly connected to the second mounting hole. The third mounting bolt passes through the input end of the first output wiring harness and the input end of the second output wiring harness and is threadedly connected to the third mounting hole.

8. The high voltage junction box according to claim 1, characterized in that: The input copper busbar is coated with an insulating layer; The high-voltage junction box also includes a tail buckle, which is installed between the shell and the insulating layer.

9. The high voltage junction box according to claim 1, characterized in that: The cross-sectional area of ​​the cables in the first output wiring harness is greater than the cross-sectional area of ​​the cables in the second output wiring harness.

10. The high voltage junction box according to claim 1, characterized in that: There are multiple branch line modules, and the multiple branch line modules are isolated from each other.

Images