Novel electric vehicle controller and circuit board structure

Abstract

The utility model discloses a novel electric vehicle controller and circuit board structure, which relates to the technical field of electric vehicles, and comprises a circuit board device in control connection with an electric vehicle, and the circuit board device is used for controlling the operation of the electric vehicle; the shell assembly is used for placing the circuit board device; the circuit board device comprises a circuit board body, an MOS tube and a dial switch, the dial switch is welded on the circuit board body, and the MOS tube is connected with the circuit board body in a pasting welding mode; the shell assembly comprises a plastic shell and a die-casting shell, the circuit board device is arranged on the top surface of the die-casting shell, an upward concave cavity is formed in the plastic shell, the cavity is used for placing the circuit board device, and the plastic shell is buckled with the die-casting shell. The controller of the structure is good in heat dissipation characteristic, simple in production process, capable of reducing manual participation and suitable for automatic flow line production.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicles, and specifically relates to a novel electric vehicle controller and circuit board structure. Background Art

[0002] As a popular means of transportation, electric vehicles have become indispensable in daily life. The electric vehicle controller is one of the three major parts of an electric vehicle, and the requirements for cost performance are getting higher and higher.

[0003] The internal circuit board of the existing electric vehicle controller carries a large current flow, but has no heat dissipation structure. The heat generated by its operation is all transferred to the circuit board through the copper sheet welded on the circuit board. When the temperature of the circuit board is too high, the solder at the welding point between the copper sheet and the circuit board melts, and the copper sheet separates from the circuit board, resulting in poor contact between the copper sheet and the circuit board, reducing the service life of components. In severe cases, it may cause the controller to malfunction or fail.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a novel electric vehicle controller and circuit board structure to achieve the desired purpose.

[0006] In order to solve the above technical problems, the utility model provides a new electric vehicle controller and circuit board structure, including:

[0007] A circuit board device is connected to the electric vehicle control, and the circuit board device is used to control the operation of the electric vehicle;

[0008] A housing assembly, used for accommodating the circuit board component;

[0009] The circuit board device comprises a circuit board body, a MOS tube and a dip switch, the dip switch is welded on the circuit board body, and the MOS tube is connected to the circuit board body by soldering;

[0010] The housing assembly includes a plastic housing and a die-cast housing, the circuit board component is placed on the top surface of the die-cast housing, an upwardly concave cavity is formed inside the plastic housing, the cavity is used to place the circuit board component, the plastic housing is buckled with the die-cast housing, so that the controller can be quickly assembled, and the housing assembly is used to protect the circuit board component;

[0011] The plastic shell is provided with a waterproof and breathable valve for dissipating the heat generated when the circuit board components are working.

[0012] Furthermore, a threaded through hole is provided on the top of the plastic shell, the waterproof breathable valve is threadedly connected to the inside of the threaded through hole, an internal thread is integrally formed on the inner wall of the threaded through hole, an external thread that matches the internal thread is integrally formed on the outer wall of the waterproof breathable valve, and the dial switch corresponds to the bottom of the threaded through hole.

[0013] Furthermore, the die-cast housing is made of aluminum, and a receiving groove is integrally formed on the top surface of the die-cast housing. The shape of the receiving groove matches the shape of the circuit board body, and the circuit board body is placed inside the groove.

[0014] Furthermore, mounting ears are integrally formed on the outer wall of the die-cast shell. The number of the mounting ears is four. The four mounting ears are distributed at the four corners of the die-cast shell, and each mounting ear is provided with a mounting hole.

[0015] Furthermore, a thermally conductive silicone pad is provided on the top surface of the die-cast housing, the top surface of the thermally conductive silicone pad is in contact with the bottom surface of the circuit board body, and the thermally conductive silicone pad is used to conduct heat generated by the circuit board components.

[0016] Furthermore, a sealing groove is integrally formed at the outer edge of the top surface of the die-cast shell, and a sealing convex edge is integrally formed at the outer edge of the bottom surface of the plastic shell. When the plastic shell and the die-cast shell are buckled together, the sealing convex edge is embedded in the sealing groove.

[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0018] In the utility model, a waterproof breathable valve is added to the plastic shell, so that the intrusion of external liquid and debris particles can be prevented while maintaining the pressure balance inside and outside the controller; the dial switch can avoid the cumbersome external wiring; the MOS tube and components are mounted on the same circuit board body, without adding a traditional aluminum substrate, thereby reducing the production cost; the circuit board body is connected by a thermally conductive silicone pad and a die-cast shell to enhance the thermal conductivity and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0022] Numbers in the figure:

[0023] 1. Waterproof breathable valve; 2. Plastic shell; 3. Circuit board; 4. Die-cast shell; 5. MOS tube; 6. DIP switch; 7. Mounting ear; 8. Sealing groove; 9. Sealing convex edge.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 to Figure 2 As shown, the utility model provides a novel electric vehicle controller and circuit board structure.

[0029] Specifically, by Figure 1-Figure 2 Given, including:

[0030] A circuit board device is connected to the electric vehicle control, and the circuit board device is used to control the operation of the electric vehicle;

[0031] A housing assembly, used for accommodating the circuit board component;

[0032] The circuit board device includes a circuit board body 3, a MOS tube 5 and a dial switch 6. The dial switch 6 is welded on the circuit board body 3, and the MOS tube 5 is connected to the circuit board body 3 by soldering.

[0033] The housing assembly includes a plastic housing 2 and a die-cast housing 4. The circuit board components are placed on the top surface of the die-cast housing 4. An upwardly concave cavity is formed inside the plastic housing 2. The cavity is used to place the circuit board components. The plastic housing 2 and the die-cast housing 4 are buckled together so that the controller can be quickly assembled. The housing assembly is used to protect the circuit board components.

[0034] A waterproof breathable valve 1 is installed on the plastic housing 2 to dissipate the heat generated by the circuit board components when they are working.

[0035] In the utility model, a waterproof breathable valve 1 is added to the plastic shell 2, so that the intrusion of external liquid and foreign particles can be prevented while maintaining the pressure balance inside and outside the controller; the dial switch 6 can avoid the cumbersome external wiring; the MOS tube 5 and the components are mounted on the same circuit board body 3, without adding a traditional aluminum substrate, thereby reducing the production cost; the circuit board body 3 is connected to the die-cast shell 4 through a thermal conductive silicone pad to enhance the thermal conductivity and improve the heat dissipation effect.

[0036] Furthermore, as a specific implementation of the utility model, the utility model provides a novel electric vehicle controller and circuit board structure.

[0037] Specifically, Figure 2 It is shown that a threaded through hole is provided on the top of the plastic housing 2, the waterproof breathable valve 1 is threadedly connected to the inside of the threaded through hole, an internal thread is integrally formed on the inner wall of the threaded through hole, an external thread matching the internal thread is integrally formed on the outer wall of the waterproof breathable valve 1, and a dial switch 6 corresponds to the bottom of the threaded through hole.

[0038] In the utility model, the waterproof breathable valve 1 is conveniently installed on the plastic housing 2 through the provided threaded through hole.

[0039] Furthermore, as another specific implementation of the present invention, the present invention provides a novel electric vehicle controller and circuit board structure.

[0040] Specifically, Figure 2 It is shown that the material of the die-cast housing 4 is aluminum, and a receiving groove is integrally formed on the top surface of the die-cast housing 4. The shape of the receiving groove is adapted to the shape of the circuit board body 3, and the circuit board body 3 is placed inside the groove.

[0041] In the utility model, the aluminum material is used to have a strong thermal conductivity.

[0042] Furthermore, as a specific implementation of the utility model, the utility model provides a novel electric vehicle controller and circuit board structure.

[0043] Specifically, Figure 1 It is shown that mounting ears 7 are integrally formed on the outer wall of the die-cast housing 4 . There are four mounting ears 7 . The four mounting ears 7 are distributed at the four corners of the die-cast housing 4 . Each mounting ear 7 is provided with a mounting hole.

[0044] In the utility model, the controller can be conveniently installed at a designated position by means of the provided installation ears 7.

[0045] Furthermore, as a specific implementation of the utility model, the utility model provides a novel electric vehicle controller and circuit board structure.

[0046] Specifically, Figure 2 It is shown that a thermally conductive silicone pad is disposed on the top surface of the die-cast housing 4, and the top surface of the thermally conductive silicone pad is in contact with the bottom surface of the circuit board body 3, and the thermally conductive silicone pad is used to conduct the heat generated by the circuit board components.

[0047] In the utility model, the circuit board body 3 is connected with the die-cast housing 4 through the thermal conductive silicone pad to enhance the thermal conductivity and improve the heat dissipation effect.

[0048] Furthermore, as a specific implementation of the utility model, the utility model provides a novel electric vehicle controller and circuit board structure.

[0049] Specifically, Figure 2 It is shown that a sealing groove 8 is integrally formed at the outer edge of the top surface of the die-cast shell 4, and a sealing convex edge 9 is integrally formed at the outer edge of the bottom surface of the plastic shell 2. When the plastic shell 2 and the die-cast shell 4 are buckled together, the sealing convex edge 9 is embedded in the sealing groove 8.

[0050] In the present invention, the sealing groove 8 and the sealing convex edge 9 are provided so that the plastic housing 2 and the die-cast housing 4 can be sealed after being buckled together, thereby further improving the sealing effect of the controller as a whole.

[0051] Working principle: By adding a waterproof breathable valve 1 to the plastic shell 2, the intrusion of external liquids and debris particles can be prevented while maintaining the pressure balance inside and outside the controller; the dip switch 6 eliminates the tedious external wiring; the MOS tube 5 and components are mounted on the same circuit board body 3, without the need to add a traditional aluminum substrate, reducing production costs; the circuit board body 3 is connected to the die-cast shell 4 through a thermal conductive silicone pad to enhance the thermal conductivity and improve the heat dissipation effect.

[0052] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A new electric vehicle controller and circuit board structure, including: A circuit board device is connected to the electric vehicle control, and the circuit board device is used to control the operation of the electric vehicle; A housing assembly, used for accommodating the circuit board component; The circuit board device comprises a circuit board body (3), a MOS tube (5) and a dip switch (6); the dip switch (6) is welded on the circuit board body (3); and the MOS tube (5) is connected to the circuit board body (3) by means of a soldering method; The housing assembly comprises a plastic housing (2) and a die-cast housing (4); the circuit board component is placed on the top surface of the die-cast housing (4); a cavity recessed upward is formed inside the plastic housing (2); the cavity is used to accommodate the circuit board component; the plastic housing (2) and the die-cast housing (4) are snap-fitted together so that the controller can be quickly assembled; the housing assembly is used to protect the circuit board component; The plastic housing (2) is provided with a waterproof breathable valve (1) for dissipating heat generated when the circuit board components are in operation.

2. A novel electric vehicle controller and circuit board structure according to claim 1, characterized in that: A threaded through hole is formed on the top of the plastic housing (2), the waterproof breathable valve (1) is threadedly connected to the inside of the threaded through hole, an internal thread is integrally formed on the inner wall of the threaded through hole, an external thread that matches the internal thread is integrally formed on the outer wall of the waterproof breathable valve (1), and the dial switch (6) corresponds to the position directly below the threaded through hole.

3. A novel electric vehicle controller and circuit board structure according to claim 1, characterized in that: The die-cast housing (4) is made of aluminum, and a receiving groove is integrally formed on the top surface of the die-cast housing (4). The shape of the receiving groove matches the shape of the circuit board body (3), and the circuit board body (3) is placed inside the groove.

4. A novel electric vehicle controller and circuit board structure according to claim 1, characterized in that: The outer wall of the die-cast shell (4) is integrally formed with mounting ears (7), the number of the mounting ears (7) is four, the four mounting ears (7) are distributed at the four corners of the die-cast shell (4), and each mounting ear (7) is provided with a mounting hole.

5. A novel electric vehicle controller and circuit board structure according to claim 1, characterized in that: The top surface of the die-cast housing (4) is provided with a thermally conductive silicone pad, the top surface of the thermally conductive silicone pad is in contact with the bottom surface of the circuit board body (3), and the thermally conductive silicone pad is used to conduct heat generated by the circuit board components.

6. A novel electric vehicle controller and circuit board structure according to claim 1, characterized in that: A sealing groove (8) is integrally formed at the outer edge of the top surface of the die-cast shell (4), and a sealing convex edge (9) is integrally formed at the outer edge of the bottom surface of the plastic shell (2); when the plastic shell (2) and the die-cast shell (4) are buckled together, the sealing convex edge (9) is embedded in the sealing groove (8).

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