Vacuum glue filling device for automobile capacitor

Abstract

The utility model discloses a vacuum glue filling device for an automobile capacitor, which comprises a sealing plate, a glue inlet is arranged on the sealing plate in a penetrating manner, a flow guide column is arranged in the glue inlet, a gap exists between the flow guide column and the inner wall of the glue inlet, and a connecting cylinder for connecting the flow guide column and the inner wall of the glue inlet is arranged between the flow guide column and the inner wall of the glue inlet; and the exhaust pipe comprises an exhaust end, and the exhaust end of the exhaust pipe sequentially penetrates through the sealing plate and the interior of the connecting cylinder and then is fixed to the bottom of the flow guide column. According to the utility model, the air in the glue filling area of the sealing plate is extracted by using the exhaust pipe in a sealing environment, and the glue filling operation is carried out after a vacuum state is formed, so that the air in the glue filling area is effectively exhausted, the condition that the air is trapped under or between glue in the glue filling process is avoided, and the generation of bubbles and gaps is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of capacitor production technology, and in particular relates to a vacuum potting device for automotive capacitors. Background Technology

[0002] In the manufacturing process of precision electronic components such as automotive capacitors, potting is a crucial step in ensuring their performance stability and service life.

[0003] Traditional potting methods are usually carried out under normal pressure. When the glue is injected into the capacitor casing under normal pressure, air may be trapped under or between the glue, forming bubbles and voids. This potting method is prone to the generation of bubbles and voids, which affects the reliability and consistency of the product. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] This utility model provides a vacuum potting device for automotive capacitors, comprising:

[0006] A sealing plate has a through-hole for a glue inlet. A guide column is provided inside the glue inlet. There is a gap between the guide column and the inner wall of the glue inlet. A connecting cylinder is provided between the guide column and the inner wall of the glue inlet to connect the two.

[0007] The suction pipe includes a suction end, which passes through the sealing plate and the inside of the connecting cylinder in sequence and is then fixed to the bottom of the guide column.

[0008] After the air extraction pipe draws air from the glue-filling area below the sealing plate to create a vacuum in the glue-filling area, the glue enters the glue-filling area from the gap between the guide column and the inner wall of the glue inlet.

[0009] As a preferred embodiment of the above technical solution, the bottom end of the guide column is further provided with an inclined guide plate.

[0010] As a preferred embodiment of the above technical solution, it further includes a support plate, which is disposed above the sealing plate, and a connecting rod is disposed at the bottom of the support plate. The other end of the connecting rod is fixedly connected to the sealing plate. A glue storage tank is disposed on the support plate, and a glue delivery pipe is disposed at the output end of the glue storage tank. The other end of the glue delivery pipe extends into the glue inlet.

[0011] As a preferred embodiment of the above technical solution, a vacuum pump is also provided on the top of the support plate, and the output end of the vacuum pump is connected to the end of the suction pipe away from the suction end.

[0012] As a preferred embodiment of the above technical solution, it also includes a frame, on which drive components are symmetrically arranged. The output end of the drive component is connected to the support plate, and the drive component drives the support plate to move longitudinally.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) This utility model uses an air extraction pipe to extract the air in the glue-filling area of ​​the sealing plate in a sealed environment to form a vacuum before performing the glue-filling operation. This method effectively removes the air in the glue-filling area and avoids the situation where the air is trapped under or between the glue during the glue-filling process, thereby greatly reducing the generation of bubbles and voids.

[0015] (2) The present invention guides and spreads the glue by setting the inclined guide plate, so that the glue gradually flows into and fills the glue-filling area along the inner wall of the capacitor shell. This design can further reduce the possibility of bubble formation and ensure that the glue can be evenly distributed throughout the glue-filling area. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic front view of the overall structure of the dispensing device in the embodiment.

[0017] Figure 2 The diagram shown is a partial front view of the glue-dispensing device in the embodiment.

[0018] Figure 3 The diagram shown is a top view of the assembly of the sealing plate and the guide column in the embodiment.

[0019] Figure 4 The diagram shown is a schematic diagram of the arrangement of the extraction pipe in the embodiment;

[0020] Reference numerals: 1. Capacitor housing; 11. Sealing plate; 12. Glue inlet; 13. Guide column; 14. Connecting cylinder; 15. Guide plate; 21. Evacuation pipe; 211. Evacuation end; 22. Glue delivery pipe; 23. Support plate; 231. Connecting rod; 24. Vacuum pump; 25. Glue storage tank; 30. Frame; 31. Drive component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 2 , Figure 3 , Figure 4 As shown, Figure 2 The diagram shown is a partial front view of the glue-dispensing device in the embodiment; Figure 3 The diagram shown is a top view of the assembly of the sealing plate and the guide column in the embodiment. Figure 4 The diagram shown is a schematic diagram of the arrangement of the extraction pipe in the embodiment;

[0024] This device includes:

[0025] A sealing plate 11 is provided with a glue inlet 12, and a guide column 13 is provided inside the glue inlet 12. There is a gap between the guide column 13 and the inner wall of the glue inlet 12, and a connecting cylinder 14 is provided between the guide column 13 and the inner wall of the glue inlet 12 to connect the two.

[0026] The suction pipe 21 includes a suction end 211, which passes through the sealing plate 11 and the connecting cylinder 14 in sequence and is then fixed to the bottom of the guide column 13.

[0027] After the air extraction pipe 21 draws out the air from the glue-filling area below the sealing plate 11 to create a vacuum in the glue-filling area, the glue enters the glue-filling area from the gap between the guide column 13 and the inner wall of the glue inlet 12.

[0028] In use, the sealing plate 11 extends into the opening of the capacitor housing 1. The area inside the capacitor housing 1 and below the sealing plate 11 is the sealed potting area. Air is extracted from the potting area below the sealing plate 11 through the extraction end 211 of the extraction pipe 21, so that this area reaches the required vacuum state. The extraction pipe passes through the sealing plate 11 and the connecting cylinder 14 and is fixed to the bottom of the guide column 13 to ensure that the sealing effect is not affected during the extraction of air. After the potting area is evacuated, the glue enters through the glue inlet 12 and flows into the potting area along the gap between the guide column 13 and the inner wall of the glue inlet 12. Since a vacuum has been formed in the area, the glue can fill the entire space more evenly, reducing the occurrence of bubbles and defects.

[0029] The bottom end of the guide column 13 is also provided with an inclined guide plate 15;

[0030] Specifically, after setting the guide plate 15, the area below the guide plate 15 is the actual glue-filling area. The guide plate 15 guides and spreads the glue, so that the glue gradually flows into and fills the glue-filling area along the inner wall of the capacitor housing 1. This design can further reduce the possibility of air bubble formation and ensure that the glue can be evenly distributed throughout the glue-filling area.

[0031] like Figure 1 As shown, Figure 1 The diagram shown is a schematic front view of the overall structure of the dispensing device in the embodiment.

[0032] It also includes a support plate 23, which is disposed above the sealing plate 11, and a connecting rod 231 is provided at the bottom of the support plate 23. The other end of the connecting rod 231 is fixedly connected to the sealing plate 11. A glue storage tank 25 is provided on the support plate 23, and a glue delivery pipe 22 is provided at the output end of the glue storage tank 25. The other end of the glue delivery pipe 22 extends into the glue inlet 12.

[0033] The support plate 23 provides additional structural support for the sealing plate 11 and is also used to install other key components. The glue storage tank 25 serves as a container for storing the glue to be injected. The glue delivery pipe 22 allows the glue to flow smoothly from the glue storage tank 25 into the glue inlet 12.

[0034] A vacuum pump 24 is also provided on the top of the support plate 23. The output end of the vacuum pump 24 is connected to the end of the suction pipe 21 away from the suction end 211.

[0035] Vacuum pump 24 is responsible for evacuating air to create the necessary vacuum environment.

[0036] It also includes a frame 30, on which drive units 31 are symmetrically arranged. The output end of the drive unit 31 is connected to the support plate 23, and the drive unit 31 drives the support plate 23 to move longitudinally.

[0037] The drive unit 31 can be an actuator of the type of cylinder, hydraulic cylinder or electric push rod in the prior art. It can drive the support plate 23 to move longitudinally (usually in the vertical direction), thereby helping to precisely control the insertion of the sealing plate 11 into the opening end of the capacitor housing 1 to achieve the full operational requirements.

[0038] Working principle: When using this device, the capacitor housing 1 is first placed in the designated position to prepare for glue filling. The position of the support plate 23 is adjusted by the drive component 31 so that the sealing plate 11 is at an appropriate height and inserted into the open end of the capacitor housing 1. The vacuum pump 24 is started, and the air in the area below the sealing plate 11 is extracted through the air extraction pipe 21 to make the glue filling area reach the required vacuum state. Under the vacuum state, the glue stored in the glue storage tank 25 is guided to the glue inlet 12 through the glue delivery pipe 22. Then it flows along the gap between the guide column 13 and the inner wall of the glue inlet 12, and is guided evenly into the glue filling area inside the capacitor housing 1 by the inclined guide plate 15. After the glue filling is completed, the support plate 23 and the sealing plate 11 and other components are lifted together by the drive component 31 and removed from the capacitor housing 1. The glue-filled capacitor housing 1 is then removed to prepare for the next working cycle.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A vacuum potting device for automotive capacitors, characterized in that, include: A sealing plate (11) is provided with a glue inlet (12) through it. A guide column (13) is provided inside the glue inlet (12). There is a gap between the guide column (13) and the inner wall of the glue inlet (12). A connecting cylinder (14) connecting the two is provided between the guide column (13) and the inner wall of the glue inlet (12). The suction pipe (21) includes a suction end (211), which passes through the sealing plate (11) and the connecting cylinder (14) in sequence and is then fixed to the bottom of the guide column (13). After the air extraction pipe (21) extracts the air from the glue-filling area below the sealing plate (11) to form a vacuum in the glue-filling area, the glue enters the glue-filling area from the gap between the guide column (13) and the inner wall of the glue inlet (12).

2. The automotive capacitor vacuum potting device according to claim 1, characterized in that, The bottom end of the guide column (13) is also provided with an inclined guide plate (15).

3. The automotive capacitor vacuum potting device according to claim 1, characterized in that, It also includes a support plate (23), which is disposed above the sealing plate (11), and a connecting rod (231) is provided at the bottom of the support plate (23). The other end of the connecting rod (231) is fixedly connected to the sealing plate (11). A glue storage tank (25) is provided on the support plate (23), and a glue delivery pipe (22) is provided at the output end of the glue storage tank (25). The other end of the glue delivery pipe (22) extends into the glue inlet (12).

4. The automotive capacitor vacuum potting device according to claim 3, characterized in that, A vacuum pump (24) is also provided on the top of the support plate (23), and the output end of the vacuum pump (24) is connected to the end of the suction pipe (21) away from the suction end (211).

5. The automotive capacitor vacuum potting device according to claim 3, characterized in that, It also includes a frame (30), on which drive members (31) are symmetrically arranged. The output end of the drive member (31) is connected to the support plate (23), and the drive member (31) drives the support plate (23) to move longitudinally.

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