Heat-conducting silicone grease coating mechanism for electric drive motor controller

Abstract

The invention discloses a heat-conducting silicone grease coating mechanism for an electric drive motor controller, which accurately controls the coating amount and distribution of silicone grease and ensures that the heat conduction performance in a compressor is optimized. Comprising a support, a glue discharging mechanism and a coating tool bit, the glue discharging mechanism and the coating tool bit are installed on the support, the glue discharging mechanism is provided with a feeding pipeline, the feeding pipeline is used for conveying silicone grease, the coating tool bit comprises a tool bit A and a tool bit B, the tool bit A is in a T shape, a flat plate of the tool bit A is used for being connected with the feeding pipeline, and a silicone grease inlet hole is vertically formed in the flat plate; the silicone grease inlet hole is connected with the discharging end of the feeding pipeline, a silicone grease cavity is formed in a vertical plate of the tool bit A, the top of the silicone grease cavity is communicated with the silicone grease inlet hole, the feeding pipeline inputs silicone grease into the silicone grease cavity through the silicone grease inlet hole, the tool bit B is fixed to the tool bit A, the tool bit B seals the side portion of the silicone grease cavity, and the lower end face of the tool bit A and the lower end face of the tool bit B are both horizontally arranged. And a silicone grease coating seam is formed in the lower end of the tool bit A.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy electric drive motor controllers, and in particular to a thermal conductive silicone grease coating mechanism for electric drive motor controllers. Background Art

[0002] In the production process of new energy electric drive motor controllers, silicone grease is used as a key thermal conductive material for heat dissipation and electrical insulation. However, traditional silicone grease coating methods usually rely on manual operation or simple mechanical coating equipment, which leads to problems such as uneven coating, silicone grease waste, and low coating efficiency. In addition, the existing technology is difficult to meet the high requirements for coating quality and efficiency. Therefore, there is an urgent need for a technical solution that can improve the quality and efficiency of silicone grease coating, ensure uniform coating and stable volume when applying thermal conductive silicone grease, and require a simple structure and high efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a thermally conductive silicone grease coating mechanism for an electric drive motor controller, which can accurately control the coating amount and distribution of the silicone grease to ensure that the heat conduction performance inside the compressor is optimized.

[0004] The object of the present invention is achieved in that:

[0005] A thermal conductive silicone grease coating mechanism for an electric drive motor controller, characterized in that it comprises a bracket, a glue discharging mechanism and a coating cutter head mounted on the bracket, the glue discharging mechanism having a feeding pipeline, the feeding pipeline being used to convey silicone grease, the coating cutter head comprising a cutter head A and a cutter head B, the cutter head A being T-shaped, the flat plate of the cutter head A being used to connect the feeding pipeline, a silicone grease inlet hole being vertically arranged on the flat plate, the silicone grease inlet hole being connected to the discharge end of the feeding pipeline, a silicone grease cavity being arranged on the vertical plate of the cutter head A, the top of the silicone grease cavity being connected to the silicone grease inlet hole, the feeding pipeline conveying the silicone grease through the silicone grease inlet hole The silicone grease cavity is input through an entry hole, the blade B is fixed on the blade A, and the blade B closes the side of the silicone grease cavity, the lower end surface of the blade A and the lower end surface of the blade B are both horizontally arranged, and a silicone grease coating seam is provided at the lower end of the blade A, the thickness of the silicone grease coating seam is less than the thickness of the silicone grease cavity, the silicone grease coating seam is connected with the bottom of the silicone grease cavity, the silicone grease coating seam corresponds to the silicone grease coating width, the lower end surface of the blade A is used to fit the coating area of ​​the controller and position it, the lower end surface of the blade B is higher than the lower end surface of the blade A, and the height difference between the lower end surfaces of the blade A and the lower end surfaces of the blade B corresponds to the silicone grease coating thickness.

[0006] Preferably, the silicone grease cavity is in the shape of an isosceles triangle, and an inclined platform is provided in the middle of the bottom of the silicone grease cavity. The inclined platform allows the silicone grease to flow obliquely from the silicone grease cavity to the silicone grease coating seam. The inclined platform forms resistance to the flow of silicone grease, causing the silicone grease to flow to both sides of the silicone grease cavity, thereby increasing the uniformity of the flow in the silicone grease cavity.

[0007] Preferably, a clamp is also included, which is adjacent to the bracket and is used to fix the electric drive motor controller.

[0008] Preferably, it also includes a robotic arm, a visual positioning system, and a laser height sensor. The bracket is installed on the robotic arm. The visual positioning system is used to detect the plane position data of the coating area of ​​the controller. The laser height sensor is used to detect the height position data of the coating area of ​​the controller. The robotic arm is used to adjust the position of the glue discharge mechanism so that the coating area of ​​the electric drive motor controller is aligned with the coating cutter head, and the lower end surface of the cutter head A is fitted with the coating area of ​​the controller, and the silicone grease coating is completed.

[0009] Preferably, a weight sensor is provided on the fixture, and the weight sensor is used to monitor the weight of the silicone grease coating in real time, and compare the weight of the silicone grease coating in a qualified state to obtain the quality of the silicone grease coating.

[0010] Preferably, it also includes an image processing unit. After the silicone grease coating is completed, the image processing unit collects the coating area image of the electric drive motor controller, and then analyzes the coated silicone grease to detect whether there is uneven thickness or uncoated area, and adjusts according to the detection results.

[0011] Preferably, the glue discharging mechanism comprises a pneumatic driving mechanism and a glue discharging electromagnetic valve. The pneumatic driving mechanism conveys the silicone grease in the feeding pipeline by pneumatic pressure, and the glue discharging electromagnetic valve controls the on-off of the feeding pipeline.

[0012] Preferably, it also includes a spraying control system, which includes a flow control unit and a spraying time control unit. The spraying time control unit is connected to the air pressure drive mechanism and the glue discharge solenoid valve to adjust the duration of the silicone grease spraying. The flow control unit monitors the silicone grease flow in real time to ensure the spraying effect.

[0013] Due to the adoption of the above technical solution, the present invention uses the cutter head A for positioning. Under the height difference limit between the lower end faces of cutter head A and the lower end faces of cutter head B and the width limit of the silicone grease coating seam, silicone grease of fixed thickness and width flows out from one side of cutter head B. The robotic arm controls the coating cutter head to move synchronously with the flow of silicone grease to coat a high-quality silicone grease layer. The present invention improves the uniformity and efficiency of silicone grease coating by precisely controlling the coating process, thereby solving the deficiencies in the prior art, improving the thermal efficiency and stability of the electric drive motor controller, and meeting the production requirements of new energy electric drive motor controllers. It has the following beneficial effects:

[0014] 1. Improve coating efficiency: The optimized design of the spraying device enables the silicone grease to be quickly and evenly coated on the surface of the controller, significantly improving the coating efficiency.

[0015] 2. Reduce silicone grease waste: Compared with the instability of glue discharge caused by manual coating and dispensing, it reduces material waste and improves resource utilization.

[0016] 3. Improve coating uniformity: The coating uniformity detection device monitors and adjusts the spraying parameters in real time to ensure the uniformity and consistency of the coating layer.

[0017] 4. Reduce dependence on manual operation: The automated control system reduces dependence on manual operation and reduces the impact of human factors on coating quality.

[0018] 5. Flexible adaptability: The spray control system can adjust the spray parameters according to the electric drive motor controller of different shapes and sizes, which improves the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is an axonometric schematic diagram of the present invention;

[0021] Figure 3 It is a top view schematic diagram of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the cutter head A;

[0023] Figure 5 It is a schematic diagram of the structure of the cutter head B.

[0024] Reference numerals

[0025] In the attached drawings, 1 is a bracket, 2 is a feeding pipe, 3 is a glue discharging solenoid valve, 4 is a coating cutter head, 5 is a mounting body, 6 is a laser height sensor, and 7 is a weight sensor. DETAILED DESCRIPTION

[0026] A thermally conductive silicone grease coating mechanism for an electric drive motor controller comprises a bracket, a glue discharging mechanism and a coating cutter head mounted on the bracket, wherein the glue discharging mechanism comprises a mounting body and a feeding pipe, wherein the mounting body is fixed on the bracket, and the feeding pipe is used to convey the silicone grease, wherein the coating cutter head comprises a cutter head A and a cutter head B, wherein the cutter head B is fixed on the cutter head A by bolts, Figure 1The blade A is overlapped in the middle, and the blade head A is T-shaped. The flat plate of the blade head A is used to connect the feeding pipeline. The flat plate of the blade head A is connected to the lower end of the mounting body by bolts. A silicone grease inlet hole is vertically arranged on the flat plate. The silicone grease inlet hole is connected to the discharge end of the feeding pipeline through the inner hole of the mounting body. A silicone grease cavity is arranged on the vertical plate of the blade head A. The top of the silicone grease cavity is connected to the silicone grease inlet hole. The feeding pipeline inputs the silicone grease into the silicone grease cavity through the silicone grease inlet hole. The blade head B is fixed on the blade head A, and the blade head B seals the silicone grease. On the side of the cavity, the lower end faces of the cutter head A and the lower end faces of the cutter head B are both arranged horizontally, and a silicone grease coating slit is arranged at the lower end of the cutter head A, the thickness of the silicone grease coating slit is less than the thickness of the silicone grease cavity, the silicone grease coating slit is connected to the bottom of the silicone grease cavity, and the silicone grease coating slit corresponds to the silicone grease coating width, the lower end face of the cutter head A is used to fit the coating area of ​​the controller and position, the lower end face of the cutter head B is higher than the lower end face of the cutter head A, and the height difference between the lower end faces of the cutter head A and the lower end faces of the cutter head B corresponds to the silicone grease coating thickness. The upper end of the mounting body is connected to the discharge end of the feeding pipe through a conduit (not shown).

[0027] The silicone grease cavity is in the shape of an isosceles triangle, and an inclined platform is provided in the middle of the bottom of the silicone grease cavity. The inclined platform allows the silicone grease to flow obliquely from the silicone grease cavity to the silicone grease coating seam. The inclined platform forms resistance to the flow of silicone grease, causing the silicone grease to flow to both sides of the silicone grease cavity, thereby increasing the uniformity of the flow in the silicone grease cavity.

[0028] A clamp (not shown) is also included, which is adjacent to the bracket and is used to fix the electric drive motor controller.

[0029] It also includes a robotic arm (not shown), a visual positioning system, and a laser height sensor. The bracket is installed on the robotic arm. The visual positioning system is used to detect the plane position data of the coating area of ​​the controller. The laser height sensor is used to detect the height position data of the coating area of ​​the controller. The robotic arm is used to adjust the position of the glue discharge mechanism so that the coating area of ​​the electric drive motor controller is aligned with the coating cutter head, and the lower end surface of the cutter head A is in contact with the coating area of ​​the controller, and the silicone grease coating is completed.

[0030] A weight sensor is provided on the fixture, and the weight sensor is used to monitor the weight of the silicone grease coating in real time, and compare the weight of the silicone grease coating in a qualified state to obtain the quality of the silicone grease coating.

[0031] It also includes an image processing unit. After the silicone grease coating is completed, the image processing unit collects the coated area image of the electric drive motor controller, and then analyzes the coated silicone grease to detect whether there is uneven thickness or missed coating area, and adjusts it according to the detection results. For example, the shape of the silicone grease cavity, the slope and width of the ramp are adjusted according to the detection results.

[0032] The glue discharging mechanism comprises an air pressure driving mechanism and a glue discharging electromagnetic valve. The air pressure driving mechanism is connected to the feeding pipeline and the silicone grease in the feeding pipeline is transported by air pressure. The glue discharging electromagnetic valve controls the on-off of the feeding pipeline.

[0033] It also includes a spraying control system, which includes a flow control unit and a spraying time control unit. The spraying time control unit is connected to the air pressure drive mechanism and the glue discharge solenoid valve to adjust the spraying duration of the silicone grease. The flow control unit monitors the silicone grease flow in real time to ensure the spraying effect.

[0034] Invention point:

[0035] 1. Coating device:

[0036] Glue discharging mechanism: The silicone grease is installed in the feeding pipe, and air pressure is applied to squeeze the silicone grease tube to feed forward. The discharging and stopping of the silicone grease are controlled by opening and closing the discharging mechanism. The silicone grease is squeezed into the coating cutter head and coated on the product surface through the cutter head.

[0037] Coating knife head: According to the characteristics of silicone grease, it is designed as a flat structure, and the width and thickness of the glue outlet are precisely controlled to ensure that the silicone grease can be evenly and accurately coated on the surface of the electric drive motor controller. Through the theory of fluid dynamics, the glue knife head is cleverly designed to ensure that the glue thickness is 0.2mm, and the overall glue is evenly discharged to avoid the situation of thick in the middle and thin on both sides.

[0038] The height difference between the two parts of the cutter head A / B is 0.2mm. After the equipment measures the height by laser, the cutter head moves to the starting position for scraping glue, with one side just touching the surface of the product. With the height difference of 0.2mm, while ensuring the consistency of glue thickness, it prevents glue overflow and backflow back to the coated path.

[0039] Spraying control system: including flow control unit and spraying time control unit, which are used to accurately adjust the spraying amount and spraying time of silicone grease. The flow control unit can monitor the silicone grease flow in real time to ensure a stable spraying effect; the spraying time control unit can adjust the duration of spraying to adapt to controllers of different shapes and sizes.

[0040] 2: Positioning device:

[0041] Mechanical fixture: used to fix the electric drive motor controller in a specified position to ensure that the blade of the coating device can be accurately aligned with the area to be coated.

[0042] Visual positioning: used to detect the position data of the controller and adjust the position of the robot arm through the feedback system to ensure the positioning accuracy during the coating process.

[0043] Laser height measurement: used to detect the height position data of the controller and adjust the Z-axis position of the robot arm through the feedback system to ensure the height accuracy during the coating process to avoid damage to products and equipment and uneven coating.

[0044] 3. Coating uniformity detection device:

[0045] High-precision weight sensor: used to monitor the thickness of the silicone grease coating in real time to ensure the uniformity of the coating.

[0046] Image processing unit: By collecting images of the coating area, the coating layer is analyzed to detect possible uneven thickness or uncoated areas, and the detection results are fed back to the equipment system to adjust the equipment parameters in time.

[0047] 4.Automation control system:

[0048] Central control unit: Integrates the control functions of various components to achieve comprehensive coordinated control of the spraying device, positioning device, coating uniformity detection device and recovery system.

[0049] Human-machine interface: Provides operation interface and parameter setting functions, allowing operators to monitor and adjust the coating process in real time.

[0050] Example:

[0051] In a specific embodiment, the silicone grease coating mechanism of the present invention is applied to a new energy electric drive motor controller production line. After the controller is fixed in the mechanical fixture of the positioning device, the coating device starts to apply silicone grease according to the preset coating parameters. The coating uniformity detection device monitors the coating effect in real time and feeds back to the coating control system for adjustment. After the use of this mechanism, the coating efficiency of the production line has increased by 50%, the silicone grease waste has been reduced by 40%, and the coating uniformity has been significantly improved.

[0052] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A thermal conductive silicone grease coating mechanism for an electric drive motor controller, characterized in that: The invention comprises a bracket, a glue discharging mechanism and a coating cutter head installed on the bracket, wherein the glue discharging mechanism has a feeding pipe, the feeding pipe is used to convey silicone grease, the coating cutter head comprises a cutter head A and a cutter head B, the cutter head A is T-shaped, the flat plate of the cutter head A is used to connect the feeding pipe, a silicone grease inlet hole is vertically arranged on the flat plate, the silicone grease inlet hole is connected to the discharge end of the feeding pipe, a silicone grease cavity is arranged on the vertical plate of the cutter head A, the top of the silicone grease cavity is connected to the silicone grease inlet hole, the feeding pipe inputs the silicone grease into the silicone grease cavity through the silicone grease inlet hole, the cutter head B is fixed The cutter head A is fixed on the cutter head B, and the cutter head B closes the side of the silicone grease cavity. The lower end faces of the cutter head A and the cutter head B are both horizontally arranged. The lower end of the cutter head A is provided with a silicone grease coating seam. The thickness of the silicone grease coating seam is less than the thickness of the silicone grease cavity. The silicone grease coating seam is connected with the bottom of the silicone grease cavity. The silicone grease coating seam corresponds to the silicone grease coating width. The lower end face of the cutter head A is used to fit the coating area of ​​the controller and position it. The lower end face of the cutter head B is higher than the lower end face of the cutter head A. The height difference between the lower end faces of the cutter head A and the lower end faces of the cutter head B corresponds to the silicone grease coating thickness.

2. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 1, characterized in that: The silicone grease cavity is in the shape of an isosceles triangle, and an inclined platform is provided in the middle of the bottom of the silicone grease cavity. The inclined platform allows the silicone grease to flow obliquely from the silicone grease cavity to the silicone grease coating seam. The inclined platform forms resistance to the flow of silicone grease, causing the silicone grease to flow to both sides of the silicone grease cavity, thereby increasing the uniformity of the flow in the silicone grease cavity.

3. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 1, characterized in that: It also includes a clamp, which is adjacent to the bracket and is used to fix the electric drive motor controller.

4. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 3, characterized in that: It also includes a robotic arm, a visual positioning system, and a laser height sensor. The bracket is installed on the robotic arm. The visual positioning system is used to detect the plane position data of the coating area of ​​the controller. The laser height sensor is used to detect the height position data of the coating area of ​​the controller. The robotic arm is used to adjust the position of the glue discharge mechanism so that the coating area of ​​the electric drive motor controller is aligned with the coating cutter head, and the lower end surface of the cutter head A is fitted with the coating area of ​​the controller, and the silicone grease coating is completed.

5. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 3, characterized in that: A weight sensor is provided on the fixture, and the weight sensor is used to monitor the weight of the silicone grease coating in real time, and compare the weight of the silicone grease coating in a qualified state to obtain the quality of the silicone grease coating.

6. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 1, characterized in that: It also includes an image processing unit. After the silicone grease coating is completed, the image processing unit collects the coating area image of the electric drive motor controller, and then analyzes the coated silicone grease to detect whether there is uneven thickness or uncoated area, and adjusts according to the detection results.

7. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 1, characterized in that: The glue discharging mechanism comprises an air pressure driving mechanism and a glue discharging electromagnetic valve. The air pressure driving mechanism conveys the silicone grease in the feeding pipeline by air pressure, and the glue discharging electromagnetic valve controls the on-off of the feeding pipeline.

8. The thermal conductive silicone grease coating mechanism for an electric drive motor controller according to claim 7, characterized in that: It also includes a spraying control system, which includes a flow control unit and a spraying time control unit. The spraying time control unit is connected to the air pressure drive mechanism and the glue discharge solenoid valve to adjust the spraying duration of the silicone grease. The flow control unit monitors the silicone grease flow in real time to ensure the spraying effect.

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