Automobile inverter fin surface coating device

Abstract

The utility model discloses an automobile inverter fin surface coating device, including base, the upper end fixed setting of base has the coating box, and the front end of coating box is the open structure, both sides of coating box outside all are fixedly set up with drive motor, and the output shaft of drive motor extends to the inside of coating box, the outside fixed setting of drive motor output shaft has the fixed frame, the inside of fixed frame is close to drive motor output shaft and is provided with two insertion slot, and one side of insertion slot is the open structure, four telescopic cavities are arranged in the inside of coating box outside drive motor, and telescopic cavity is annular equidistance distribution, and telescopic cavity and insertion slot position correspond, the upper and lower of coating box are located drive motor outside and are fixedly set up with first hydraulic telescopic device, the front and back of coating box are located drive motor outside and are fixedly set up with second hydraulic telescopic device, and this structure has solved the problem of fin adjustment not enough convenient and fixed frame connection not enough stable.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to a coating device for the surface of automotive inverter heat sinks. Background Technology

[0002] The surface coating device for automotive inverter heat sinks is a core piece of equipment in the heat dissipation technology of new energy vehicle electronic control systems. It is mainly used to deposit a thin film of highly thermally conductive and corrosion-resistant metal or alloy on the surface of inverter heat sinks to improve heat dissipation efficiency and extend device life. The surface coating device for automotive inverter heat sinks typically consists of a pre-processing module, a PVD coating chamber, an automated conveying and control system, and local electroplating fixtures. During use, in a vacuum environment, the plasma generated by the ionization of argon gas bombards the target material, and the sputtered atoms are deposited on the surface of the heat sink to form a thin film. The coating device is widely used in the manufacturing of heat sinks for electronic control systems such as new energy vehicle inverters, motor controllers, and DC / DC converters.

[0003] For example, the Chinese patent CN207452240U, "PVD Coating Equipment for Heat Sinks of New Energy Vehicle Inverters," includes a magnetron sputtering machine with a heat sink mask mounting platform at its inlet. It also includes a PVD pretreatment device, which comprises a heat sink positioning plate for carrying the heat sink, a conveyor line for conveying the heat sink positioning plate, and a spray box, a blower drying box, a sandblasting box, a pre-compressed air drying box, and a post-compressed air drying box that pass sequentially through the conveyor line. The device also includes an oil removal and cleaning device located upstream of the spray box along the conveyor line, a deionized water ultrasonic cleaning device located between the sandblasting box and the pre-compressed air drying box, and a dehydration device located between the pre-compressed air drying box and the post-compressed air drying box.

[0004] While the aforementioned existing technologies can achieve heat sink coating, in practical use, on the one hand, heat sink adjustment is not convenient enough. Usually, the heat sink is fixed inside the coating box, which means that when the heat sink is flipped, the operator needs to disassemble and reassemble it and adjust its position, thus reducing the efficiency of heat sink coating. On the other hand, the connection of the fixing frame is not stable enough. Usually, the fixing frame is directly connected to the motor output, which means that when the motor is powered off, the output shaft will be unlocked, making the fixing frame prone to rotation. Therefore, it does not meet the current requirements. In response, we propose a heat sink surface coating device for automotive inverters. Utility Model Content

[0005] The purpose of this invention is to provide a coating device for the surface of the heat sink of an automotive inverter, so as to solve the problems mentioned in the background art, such as the inconvenience of heat sink adjustment and the instability of the fixed frame connection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating device for the surface of a heat sink of an automotive inverter, comprising a base, a coating box fixedly mounted on the upper end of the base, the front end of the coating box having an open structure, drive motors fixedly mounted on both sides of the outside of the coating box, the output shaft of the drive motor extending into the interior of the coating box, a fixing frame fixedly mounted on the outside of the output shaft of the drive motor, and two slots symmetrically arranged inside the fixing frame near the output shaft of the drive motor, with one side of the slot having an open structure.

[0007] Preferably, the coating box is provided with four telescopic cavities inside the outer side of the drive motor. The telescopic cavities are distributed in a ring at equal intervals and correspond to the slot positions. A first hydraulic telescopic device is fixedly installed above and below the outer side of the coating box. A second hydraulic telescopic device is fixedly installed at the front and rear ends of the outer side of the coating box. The telescopic ends of the first and second hydraulic telescopic devices extend into the interior of the telescopic cavities.

[0008] Preferably, a plug is fixedly provided on one side of the telescopic end of both the first and second hydraulic telescopic devices, with the plug on the first hydraulic telescopic device extending into the interior of the slot.

[0009] Preferably, the fixing frame is provided with two threaded holes at the upper and lower ends on one side of the slot. The threaded holes are through-hole structures. Bolts are provided inside the threaded holes. The upper and lower ends of the bolts extend to the outside of the fixing frame. A rubber pad is provided at the lower end of the bolt. The rubber pad is rotatably connected to the bolt. A heat sink body is provided between the fixing frames. The outer side of the heat sink body contacts the rubber pad.

[0010] Preferably, an exhaust pipe is fixedly installed at the upper part of the coating box, the exhaust pipe is connected to the coating box, a valve is fixedly installed on the outside of the exhaust pipe, and an electron gun assembly is fixedly installed at the upper part of the inside of the coating box.

[0011] Preferably, a door is fixedly installed on both the upper and lower sides of the front side of the coating box, the door is rotatably connected to the fixed base, and an observation window is provided at the center of the inside of the door, the observation window corresponding to the position of the fixed frame.

[0012] Preferably, a control panel is fixedly installed at the upper end of the box door, and the control panel is electrically connected to the valve, drive motor, first hydraulic telescopic device, second hydraulic telescopic device, and electron gun assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model can rotate the heat sink body by using a drive motor and a fixed frame. When the heat sink body is coated, one side of the heat sink body has been coated. At this time, the operator opens the first hydraulic telescopic device through the control panel, so that the telescopic end of the first hydraulic telescopic device retracts. The retraction of the telescopic end of the first hydraulic telescopic device drives the insertion rod to move until the insertion rod is pulled out of the slot. Then, the drive motor is opened through the control panel, so that the output shaft of the drive motor drives the fixed frame to rotate until the fixed frame is rotated to a suitable position. At this time, the fixed frame is fixed and the subsequent coating process is carried out, thereby improving the efficiency of heat sink coating.

[0015] (2) This utility model can fix the fixed frame after rotation by means of the first hydraulic telescopic device and the second hydraulic telescopic device. When the heat sink is coated, the fixed frame has been rotated to a suitable position. At this time, the second hydraulic telescopic device is turned on by the control panel, so that the telescopic end of the second hydraulic telescopic device extends. The extension of the telescopic end of the second hydraulic telescopic device drives the insertion rod to move until the insertion rod is moved to a suitable position. At this time, the insertion rod enters the slot and the fixed frame is fixed, thereby improving the stability of the fixed frame.

[0016] (3) This utility model can fix the heat sink body by means of bolts and rubber pads. Before the heat sink is coated, the heat sink body is placed between the fixing frames. At this time, the operator rotates the bolts so that the bolts rotate in the threaded holes, so that one end of the bolts moves towards the inside of the fixing frames. At the same time, the rubber pads move together until the rubber pads are moved to the appropriate position. At this time, the rubber pads contact the heat sink body. Continue to rotate the bolts so that the rubber pads further squeeze and fix the heat sink body. At the same time, the operator can fix heat sink bodies of different lengths by rotating the bolts in different positions, thereby improving the adaptability of the fixing mechanism. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Base; 2. Coating chamber; 3. Evacuation pipe; 4. Valve; 5. Fixing base; 6. Chamber door; 7. Observation window; 8. Control panel; 9. Drive motor; 10. First hydraulic telescopic device; 11. Second hydraulic telescopic device; 12. Electron gun assembly; 13. Fixing frame; 14. Bolt; 15. Rubber pad; 16. Heat sink body; 17. Telescopic cavity; 18. Insert rod; 19. Threaded hole; 20. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a coating device for the surface of a heat sink of an automotive inverter, comprising a base 1, a coating box 2 fixedly mounted on the upper end of the base 1, the front end of the coating box 2 having an open structure, an exhaust pipe 3 fixedly mounted on the upper end of the exterior of the coating box 2, the exhaust pipe 3 communicating with the coating box 2, a valve 4 fixedly mounted on the exterior of the exhaust pipe 3, an electron gun assembly 12 fixedly mounted on the upper end of the interior of the coating box 2, a box door 6 fixedly mounted on the upper and lower sides of one side of the front end of the coating box 2, the box door 6 being rotatably connected to a fixed base 5, an observation window 7 being provided at the center of the interior of the box door 6, the observation window 7 corresponding to the position of the fixed frame 13, a control panel 8 fixedly mounted on the upper end of the box door 6, the control panel 8 being electrically connected to the valve 4, the drive motor 9, the first hydraulic telescopic device 10, the second hydraulic telescopic device 11, and the electron gun assembly 12.

[0024] Please see Figure 1 , Figure 2 and Figure 3 Both sides of the coating chamber 2 are fixedly equipped with drive motors 9. The output shaft of the drive motor 9 extends into the interior of the coating chamber 2. A fixed frame 13 is fixedly installed outside the output shaft of the drive motor 9. Two slots 20 are provided inside the fixed frame 13 near the output shaft of the drive motor 9. The slots 20 are symmetrically arranged, and one side of the slot 20 is open to facilitate the rotation of the fixed frame 13 by the drive motor 9.

[0025] Please see Figure 1 , Figure 2 and Figure 4The coating box 2, located outside the drive motor 9, has four telescopic chambers 17 arranged in a ring at equal intervals, and the telescopic chambers 17 correspond to the positions of the slots 20. The coating box 2 is fixedly equipped with a first hydraulic telescopic device 10 above and below the drive motor 9, and a second hydraulic telescopic device 11 is fixedly equipped at the front and rear ends of the coating box 2 outside the drive motor 9. The telescopic ends of the first hydraulic telescopic device 10 and the second hydraulic telescopic device 11 extend into the interior of the telescopic chambers 17. A plug rod 18 is fixedly provided on one side of the telescopic end of the first hydraulic telescopic device 10 and the second hydraulic telescopic device 11. The plug rod 18 on the first hydraulic telescopic device 10 extends into the interior of the slots 20, so as to lock the fixed frame 13 through the plug rod 18.

[0026] Please see Figure 2 and Figure 4 The fixing frame 13 is provided with two threaded holes 19 at the upper and lower ends on one side of the slot 20. The threaded holes 19 are through-hole structures. Bolts 14 are provided inside the threaded holes 19. The upper and lower ends of the bolts 14 extend to the outside of the fixing frame 13. A rubber pad 15 is provided at the lower end of the bolts 14. The rubber pad 15 is rotatably connected to the bolts 14. A heat sink body 16 is provided between the fixing frames 13. The outer side of the heat sink body 16 contacts the rubber pad 15, so that the heat sink body 16 can be squeezed and fixed by the bolts 14 and the rubber pad 15.

[0027] Working principle: In use, first place the heat sink body 16 between the fixed frames 13. Then, the operator rotates the bolt 14, causing the bolt 14 to rotate through the threaded hole 19, moving one end of the bolt 14 inwards towards the fixed frame 13. At the same time, the rubber pad 15 moves together until the rubber pad 15 is moved to the appropriate position, at which point the rubber pad 15 contacts the heat sink body 16. Continue rotating the bolt 14, causing the rubber pad 15 to further compress and fix the heat sink body 16. During coating, the operator activates the first hydraulic telescopic device 10 through the control panel 8, causing the telescopic end of the first hydraulic telescopic device 10 to retract. The retraction band of the telescopic end of the first hydraulic telescopic device 10... The insert rod 18 is moved until it is pulled out of the slot 20. Then, the drive motor 9 is turned on through the control panel 8, so that the output shaft of the drive motor 9 drives the fixed frame 13 to rotate until the fixed frame 13 is rotated to the appropriate position. At this time, the second hydraulic telescopic device 11 is turned on through the control panel 8, so that the telescopic end of the second hydraulic telescopic device 11 extends. The extension of the telescopic end of the second hydraulic telescopic device 11 drives the insert rod 18 to move until the insert rod 18 is moved to the appropriate position. At this time, the insert rod 18 enters the slot 20 and then the subsequent coating operation is carried out. The inner wall of the coating box 2, the fixed frame 13, the bolt 14, the rubber pad 15, and the insert rod 18 are all lubricated and phosphated to reduce the adhesion of the coating.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coating device for the surface of a heat sink of an automotive inverter, comprising a base (1), characterized in that: A coating box (2) is fixedly installed on the upper end of the base (1). The front end of the coating box (2) is an open structure. A drive motor (9) is fixedly installed on both sides of the outside of the coating box (2). The output shaft of the drive motor (9) extends into the inside of the coating box (2). A fixing frame (13) is fixedly installed on the outside of the output shaft of the drive motor (9). Two slots (20) are provided inside the fixing frame (13) near the output shaft of the drive motor (9). The slots (20) are symmetrically arranged, and one side of the slot (20) is an open structure.

2. The coating device for the surface of the heat sink of an automotive inverter according to claim 1, characterized in that: The coating box (2) located outside the drive motor (9) has four telescopic chambers (17) inside. The telescopic chambers (17) are distributed in a ring at equal intervals and correspond to the slots (20). The coating box (2) located outside the drive motor (9) is fixedly provided with a first hydraulic telescopic device (10) above and below. The coating box (2) located outside the drive motor (9) is fixedly provided with a second hydraulic telescopic device (11) at the front and rear ends. The telescopic ends of the first hydraulic telescopic device (10) and the second hydraulic telescopic device (11) extend into the interior of the telescopic chamber (17).

3. The coating device for the surface of the heat sink of an automotive inverter according to claim 2, characterized in that: The first hydraulic telescopic device (10) and the second hydraulic telescopic device (11) are both fixedly provided with a plug rod (18) on one side of their telescopic ends. The plug rod (18) on the first hydraulic telescopic device (10) extends into the interior of the slot (20).

4. The coating device for the surface of the heat sink of an automotive inverter according to claim 3, characterized in that: The fixing frame (13) is provided with two threaded holes (19) at the upper and lower ends on the side of the slot (20). The threaded holes (19) are through-hole structures. A bolt (14) is provided inside the threaded hole (19). The upper and lower ends of the bolt (14) extend to the outside of the fixing frame (13). A rubber pad (15) is provided at the lower end of the bolt (14). The rubber pad (15) is rotatably connected to the bolt (14). A heat sink body (16) is provided between the fixing frames (13). The outer side of the heat sink body (16) is in contact with the rubber pad (15).

5. The coating device for the surface of the heat sink of an automotive inverter according to claim 4, characterized in that: An exhaust pipe (3) is fixedly installed on the upper part of the coating box (2), and the exhaust pipe (3) is connected to the coating box (2). A valve (4) is fixedly installed on the outside of the exhaust pipe (3), and an electron gun assembly (12) is fixedly installed on the upper part of the inside of the coating box (2).

6. The coating device for the surface of the heat sink of an automotive inverter according to claim 5, characterized in that: The coating box (2) has a door (6) fixedly installed on the upper and lower sides of the front side. The door (6) is rotatably connected to the fixed seat (5). An observation window (7) is provided at the center of the inside of the door (6). The observation window (7) corresponds to the fixed frame (13).

7. The coating device for the surface of the heat sink of an automotive inverter according to claim 6, characterized in that: The upper end of the box door (6) is fixedly provided with a control panel (8), which is electrically connected to the valve (4), drive motor (9), first hydraulic telescopic device (10), second hydraulic telescopic device (11), and electron gun assembly (12).

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