Automobile high-voltage box with electromagnetic shielding

Abstract

This utility model discloses an electromagnetically shielded automotive high-voltage box, belonging to the technical field of automotive high-voltage boxes. The automotive high-voltage box includes a mounting box for installation in a vehicle, comprising a lower mounting box and a top cover; an input terminal and an output terminal that can be inserted into the mounting box; a high-voltage inner box located inside the lower mounting box, comprising a plastic lower box and a matching plastic upper box; a conductive plate located inside the plastic lower box, with the input and output terminals electrically connected to the conductive plate via copper lugs; and a metal shielding layer fitted onto the high-voltage inner box. This electromagnetically shielded automotive high-voltage box, through the metal shielding layer enclosing the high-voltage inner box, can effectively absorb and reflect electromagnetic waves, reduce the impact of electromagnetic interference, provide electromagnetic compatibility protection, provide voltage isolation, ensure electrical safety between different parts, and prevent dangers such as electric shock.

Description

Technical Field

[0001] This utility model relates to the field of automotive high-voltage box technology, and in particular to an automotive high-voltage box with electromagnetic shielding. Background Technology

[0002] New energy vehicles can power various electrical devices inside the vehicle through batteries. Therefore, high-voltage boxes are needed to divert electrical energy to power the devices inside the vehicle. However, high-voltage power lines generate electromagnetic fields when transmitting power. These electromagnetic fields can interfere with surrounding electronic devices, causing signal distortion or equipment failure. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an automotive high-voltage box with electromagnetic shielding.

[0004] The technical solution of this utility model is as follows: a high-voltage box for automobiles with electromagnetic shielding, comprising an installation box that can be installed on an automobile, the installation box including a lower installation box and an upper cover; an input terminal and an output terminal that can be inserted into the installation box; a high-voltage inner box disposed inside the lower installation box, the high-voltage inner box including: a plastic lower box and a plastic upper box adapted thereto; a conductive plate disposed inside the plastic lower box, the input terminal and the output terminal being electrically connected to the conductive plate via copper lugs; a metal shielding layer sleeved on the high-voltage inner box, the metal shielding layer including: a metal lower box and a metal upper box, the metal lower box and the metal upper box being adapted to the plastic lower box and the plastic upper box respectively; a wire shielding layer fixedly sleeved on the input terminal and the output terminal; a slot opened at the connection between the metal upper box and the metal lower box for the input terminal and the output terminal to pass through, the slot extending with a spring contact copper tube that fits against the wire shielding layer.

[0005] Furthermore, the bottom of the inner cavity of the mounting box is provided with a limiting block for positioning the metal shielding layer.

[0006] Furthermore, the inner cavity of the mounting box is provided with threaded posts for fixing the high-pressure inner box.

[0007] Furthermore, the upper cover is provided with compression ribs, and a sealing ring is provided at the connection between the upper cover and the mounting box.

[0008] Furthermore, the interior of the high-voltage inner box is equipped with a conductive plate that connects the input and output terminals via copper lugs.

[0009] Furthermore, the lower plastic box has lower connectors on both sides, and the upper plastic box has upper connectors on both sides corresponding to the lower connectors. The lower connectors are provided with threaded grooves for bolts to pass through.

[0010] Furthermore, the upper metal box and the lower metal box are provided with exposure grooves for the lower connector and the upper connector to be exposed, and the exposure grooves are provided with mounting ears corresponding to the lower connector and the upper connector.

[0011] Furthermore, the sides of the lower plastic box and the upper plastic box are provided with triangular protrusions, and the lower metal box and the upper metal box are provided with limiting grooves that are adapted to the protrusions.

[0012] The beneficial technical effects of this utility model are: the metal shielding layer can wrap the high-voltage inner box, effectively absorb and reflect electromagnetic waves, reduce the impact of electromagnetic interference, provide electromagnetic compatibility protection, provide voltage isolation function, ensure electrical safety between different parts, and prevent dangers such as electric shock. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is an exploded view of the structure of this utility model;

[0016] Figure 4 This is a top view schematic diagram of the structure of this utility model;

[0017] Figure 5 This is a top view schematic diagram of the structure of the lower box of this utility model.

[0018] 1. Lower housing; 11. Limiting block; 12. Threaded post; 2. Top cover; 21. Extruded rib; 22. Sealing ring; 3. Input end; 4. Output end; 5. Plastic lower housing; 51. Plastic upper housing; 52. Metal lower housing; 53. Metal upper housing; 54. Conductive plate; 55. Wire shielding layer; 56. Spring contact copper tube; 57. Lower connector; 58. Upper connector; 59. Exposed groove; 6. Protrusion; 61. Limiting groove. Detailed Implementation

[0019] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] See appendix Figure 1-5As shown in Embodiment 1, an electromagnetically shielded automotive high-voltage box includes an installation box that can be installed on a vehicle. The installation box includes a lower installation box 1 and an upper cover 2; an input terminal 3 and an output terminal 4 that can be inserted into the installation box; a high-voltage inner box disposed inside the lower installation box 1, which includes a plastic lower box 5 and a plastic upper box 51 adapted thereto; a conductive plate 54 disposed inside the plastic lower box, with the input terminal 3 and the output terminal 4 electrically connected to the conductive plate 54 via copper lugs; and a metal shielding layer sleeved on the high-voltage inner box.

[0021] The mounting box can be installed in a car. After the input terminal 3 and output terminal 4 are inserted into the high-voltage inner box, the high-voltage inner box can shunt the current, allowing the high-voltage current of the battery to enter the high-voltage inner box through the input terminal 3, and then be transmitted through the output terminal 4 after shunt. The metal shielding layer can wrap the high-voltage inner box, which can effectively absorb and reflect electromagnetic waves, reduce the impact of electromagnetic interference, provide electromagnetic compatibility protection, provide voltage isolation function, ensure electrical safety between different parts, and prevent dangers such as electric shock.

[0022] The metal shielding layer includes: a lower metal box 52 and an upper metal box 53, which are respectively adapted to the lower plastic box 5 and the upper plastic box 51; a wire shielding layer 55 fixedly sleeved on the input end 3 and the output end 4; and a slot opened at the connection between the upper metal box 53 and the lower metal box 52 for the input end 3 and the output end 4 to pass through, with a spring contact copper tube 56 extending from the slot and fitting in contact with the wire shielding layer 55.

[0023] The spring contacts the copper tube 56, which then contacts the wire shielding layer 55. The wire shielding layer 55 is made of conductive material that wraps around the wire core, which can block external electromagnetic interference or internal signal leakage, thereby ensuring the stability of signal transmission and the electromagnetic compatibility of the automotive electronic system.

[0024] Furthermore, a limiting block 11 for positioning the metal shielding layer is provided at the bottom of the inner cavity of the mounting box 1.

[0025] The limiting block 11 can assist in the positioning of the metal lower box 52 during installation, so that the metal lower box 52 can be limited when it is fixed.

[0026] Furthermore, the inner cavity of the lower box 1 is provided with threaded posts 12 for fixing the high-voltage inner box.

[0027] The threaded post 12 can be fixed to the high-pressure inner box with screws.

[0028] Furthermore, the upper cover 2 is provided with compression ribs 21, and a sealing ring 22 is provided at the connection between the upper cover 2 and the mounting box 1.

[0029] Furthermore, the high-voltage inner box is equipped with a conductive plate 54 that connects the input terminal 3 and the output terminal 4 via a copper lug.

[0030] After the top cover 2 is installed, pressure can be applied to the metal upper box 53 by squeezing the ribs 21, thereby maintaining the tightness between the metal upper box 53 and the metal lower box 52, and also improving its stability and firmness.

[0031] Furthermore, the lower plastic box 5 has lower connectors 57 on both sides, and the upper plastic box 51 has upper connectors 58 on both sides corresponding to the lower connectors 57. The lower connectors 57 and the upper plastic box 51 have threaded grooves for bolts to pass through.

[0032] After the lower plastic box 5 and the upper plastic box 51 are assembled, the screws can be screwed into the threaded grooves, thereby fixing the lower connector 57 and the upper connector 58. As the screws are screwed in further, they will engage with the threaded post 12, thus completing the fixing of the high-voltage inner box.

[0033] Furthermore, the upper metal box 53 and the lower metal box 52 are provided with exposure grooves 59 for the lower connector 57 and the upper connector 58 to be exposed, and the exposure grooves 59 are provided with mounting ears corresponding to the lower connector 57 and the upper connector 58.

[0034] When the lower plastic box 5 is placed on the lower metal box 52, and the upper plastic box 51 is spliced ​​with the lower plastic box 5, the upper metal box 53 can be placed on the upper plastic box 51 to complete the installation of the metal shielding layer. The upper connector 58 and the lower connector 57 will be exposed from the exposed groove 59. The mounting holes on the mounting ears correspond to the threaded grooves, so the metal shielding layer can be fixed to the inner plastic box with screws.

[0035] Furthermore, the sides of the lower plastic box 5 and the upper plastic box 51 are provided with triangular protrusions 6, and the lower metal box 52 and the upper metal box 53 are provided with limiting grooves 61 that are adapted to the protrusions 6.

[0036] After the high-voltage inner box is assembled into the metal shielding layer, the protrusion 6 will engage in the limiting groove 61, thus achieving the initial fixation of the metal shielding layer and making it less prone to slippage when tightening the screws.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-voltage box for automobiles with electromagnetic shielding, characterized in that, include: A mounting box that can be installed on a car, the mounting box including a lower mounting box (1) and an upper cover (2); The input terminal (3) and output terminal (4) can be inserted into the installation box; A high-voltage inner box is provided inside the mounting lower box (1). The high-voltage inner box includes: a plastic lower box (5) and a plastic upper box (51) adapted thereto; a conductive plate (54) is provided inside the plastic lower box (5), and the input end (3) and the output end (4) are electrically connected to the conductive plate (54) through copper lugs. A metal shielding layer fitted onto the high-voltage inner box, the metal shielding layer comprising: a lower metal box (52) and a upper metal box (53), the lower metal box (52) and the upper metal box (53) being adapted to the lower plastic box (5) and the upper plastic box (51) respectively; a wire shielding layer (55) fixedly fitted onto the input end (3) and the output end (4); a slot opened at the connection between the upper metal box (53) and the lower metal box (52) for the input end (3) and the output end (4) to pass through, the slot extending with a spring contact copper tube (56) that fits against the wire shielding layer (55).

2. The automotive high-voltage box with electromagnetic shielding according to claim 1, characterized in that, The bottom of the inner cavity of the mounting box (1) is provided with a limiting block (11) for positioning the metal shielding layer.

3. The automotive high-voltage box with electromagnetic shielding according to claim 1, characterized in that, The inner cavity of the mounting box (1) is provided with threaded post (12) for fixing the high-pressure inner box.

4. The automotive high-voltage box with electromagnetic shielding according to claim 1, characterized in that, The upper cover (2) is provided with compression ribs (21), and a sealing ring (22) is provided at the connection between the upper cover (2) and the mounting box (1).

5. The automotive high-voltage box with electromagnetic shielding according to claim 1, characterized in that, The high-voltage inner box is equipped with a conductive plate (54) that connects the input end (3) and the output end (4) via a copper lug.

6. The automotive high-voltage box with electromagnetic shielding according to claim 3, characterized in that, The lower plastic box (5) has lower connectors (57) on both sides, and the upper plastic box (51) has upper connectors (58) on both sides corresponding to the lower connectors (57). The lower connectors (57) and the lower connectors (58) have threaded grooves for bolts to pass through.

7. The automotive high-voltage box with electromagnetic shielding according to claim 6, characterized in that, The upper metal box (53) and the lower metal box (52) are provided with exposure grooves (59) for the lower connector (57) and the upper connector (58) to be exposed. The exposure grooves (59) are provided with mounting ears corresponding to the lower connector (57) and the upper connector (58).

8. The automotive high-voltage box with electromagnetic shielding according to claim 1, characterized in that, The lower plastic box (5) and the upper plastic box (51) have triangular protrusions (6) on their sides, and the lower metal box (52) and the upper metal box (53) have limiting grooves (61) that are adapted to the protrusions (6).

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