Welding pin type cover plate for aluminum electrolytic capacitor

Abstract

This invention discloses a pin-type cover plate for aluminum electrolytic capacitors, comprising a housing and a top cover device. The top cover device is fitted and connected inside the housing near the top. The cover body is disposed inside the housing. A shock-absorbing device is disposed on the top of the cover body near the edge. A connecting device is disposed at a corresponding position on the surface of the cover body. A pressure ring is slidably connected to the top of the cover body. An elastic air bladder is disposed between the bottom of the pressure ring and corresponding sides inside the cover body. A groove is formed on the top of the pressure ring. A flexible composite layer is disposed on the top of the pressure ring and located in the groove. This invention relates to the field of electronic component technology. This pin-type cover plate for aluminum electrolytic capacitors achieves a buffering and shock-absorbing effect, which can dissipate vibration, reduce the impact of vibration, and is less prone to loosening, shaking, or breakage. It has good stability, is safe and reliable, extends the service life of the equipment, and improves working efficiency and performance.

Description

Technical Field

[0001] This invention relates to the field of electronic components technology, specifically to a solder pin type cover plate for aluminum electrolytic capacitors. Background Technology

[0002] A capacitor is an energy storage element used in circuits for tuning, filtering, coupling, bypassing, energy conversion, and time delay. Capacitors are commonly called capacitors. Based on their structure, they can be divided into three types: fixed capacitors, semi-variable capacitors, and variable capacitors. Aluminum electrolytic capacitors are made by inserting a bent aluminum strip as the positive electrode into an aluminum cylinder filled with liquid electrolyte as the negative electrode. While aluminum electrolytic capacitors have seen steady growth in traditional consumer electronics, their applications have expanded to many emerging fields such as energy-saving lamps, frequency converters, and new energy sources due to structural transformation and technological advancements. With the development of energy-saving frequency conversion technology, aluminum electrolytic capacitors are increasingly used in various frequency converters and inverters, such as washing machines, power tools, and automotive components.

[0003] Currently, traditional aluminum electrolytic capacitors use solder pin-type cover plates that do not provide cushioning and shock absorption. They are easily affected by vibration, and the leads may become loose during operation, or even break in severe cases. This can cause the entire capacitor to malfunction, affecting the lifespan of the equipment and reducing its performance. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a pin-type cover plate for aluminum electrolytic capacitors. This solves the problem that traditional pin-type cover plates for aluminum electrolytic capacitors do not have a buffering and shock-absorbing function, are easily affected by vibration, and may loosen at the leads during operation, or even break in severe cases, causing the entire capacitor to malfunction, affecting the service life of the equipment, and reducing its performance.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a welding pin type cover plate for aluminum electrolytic capacitors, comprising a housing and a top cover device, wherein the top cover device is fitted and connected inside the housing and near the top position;

[0008] The top cover device includes a cover body, a shock-absorbing device, and a connecting device. The cover body is located inside the housing. The shock-absorbing device is located at the top of the cover body and near the edge. The connecting device is located at a corresponding position on the surface of the cover body.

[0009] The shock absorption device includes a pressure ring, an elastic airbag, a groove, and a flexible composite layer. The pressure ring is slidably connected to the top of the cover. The elastic airbag is disposed between the bottom of the pressure ring and the corresponding two sides inside the cover. The groove is opened on the top of the pressure ring. The flexible composite layer is disposed on the top of the pressure ring and located at the position of the groove.

[0010] Preferably, the top of the connecting device is provided with a lead wire, the inside of the housing is provided with a core package, a connector is provided between the top of the core package and the two sides corresponding to the bottom of the connecting device, and a filler is provided between the bottom of the top cover device and the two sides corresponding to the top of the core package and near the connector.

[0011] Preferably, the cover has a cavity inside and near the edge that is adapted to the pressure ring and the elastic airbag, and the top of the cover has a sliding groove adapted to the pressure ring.

[0012] Preferably, the connecting device includes a column device and a pressure cap device. The column device is fitted onto the surface of the cover, and the end of the column device is covered and extends to its top. The pressure cap device is threadedly connected to the column device.

[0013] Preferably, the cover surface is provided with corresponding perforations that are compatible with the column device, and the top of the column device is provided with an external thread that is compatible with the pressure cap device.

[0014] Preferably, the column device includes a T-shaped connecting column, a compression ring, a circular air cavity, and an elastic layer. The T-shaped connecting column is connected to the cover. The compression ring is disposed on the bottom edge of the surface of the T-shaped connecting column. The circular air cavity is opened on the surface of the T-shaped connecting column and is located near the compression ring. The elastic layer is disposed on the surface of the T-shaped connecting column and is located at the position of the circular air cavity.

[0015] Preferably, a main channel is provided inside the T-shaped connecting post near the bottom, one end of which is connected to the compression ring bladder. A branch channel is provided inside the T-shaped connecting post, which connects the main channel to the circular air chamber.

[0016] Preferably, the cap pressing device includes a cap pressing body, a guide post, a return spring, and a sliding sleeve. The cap pressing body is threadedly connected to the post device. The guide post is slidably connected to the bottom of the cap pressing body. The return spring is disposed between the top of the guide post and the corresponding two sides inside the cap pressing body. The sliding sleeve is slidably connected to the bottom of the cap pressing body and fixedly connected to the bottom end of the guide post.

[0017] Preferably, a sliding groove adapted to the guide post is provided inside the pressure cap body and at the bottom position, and the guide post is evenly distributed at the bottom of the pressure cap body.

[0018] (III) Beneficial Effects

[0019] This invention provides a solder pin type cover plate for aluminum electrolytic capacitors. It has the following advantages:

[0020] (i) The aluminum electrolytic capacitor uses a welding pin type cover plate. Through the shell, top cover device, lead wire, core package, connector, and filler, the entire device has a compact structure by utilizing the cooperation between the top cover device and the shell, and the action of the filler. It can absorb vibration, reduce the impact of vibration, and is not prone to loosening or breakage. It has good stability, is safe and reliable, extends the service life of the equipment, and improves work efficiency and performance.

[0021] (II) The aluminum electrolytic capacitor uses a welding pin type cover plate, which consists of a cover body, a shock-absorbing device, a connecting device, a pressure ring, an elastic air bladder, a groove, and a flexible composite layer. When the top cover device is fitted with the shell, the pressure ring is pressed by the top of the inner wall of the shell. At this time, the pressure ring applies pressure to the elastic air bladder. The gas inside the compressed elastic air bladder enters the groove. The gas pressure causes the flexible composite layer to expand and fit tightly against the top of the inner wall of the shell, thereby achieving the effect of buffering and shock absorption. It makes full use of its own pressing force during the fit to achieve flexible contact, timely dissipate vibration, and is safe and reliable, thus improving the performance.

[0022] (III) The aluminum electrolytic capacitor uses a welded pin type cover plate, which consists of a column device, a T-shaped connecting column, a compression ring bladder, a circular air cavity, and an elastic layer. When the cap device and the column device are threaded together, the T-shaped connecting column moves upward as it is tightened, and the compression ring bladder is compressed through the cover. At this time, the internal gas is transported to the circular air cavity through the main channel and the branch channel, which causes the elastic layer to expand and fills the gap between the surface of the T-shaped connecting column and the inside of the cover, reducing the impact of vibration and making it less prone to shaking. It cleverly connects the structures together, achieves the effect of shock resistance, is safe and reliable, and improves the performance.

[0023] (iv) The aluminum electrolytic capacitor uses a welding pin type cover plate. Through the pressure cap body, guide post, return spring, and sliding sleeve, when the pressure cap body is threaded with the T-shaped connecting post, the entire pressure cap device will move downward. Then, through the sliding of the guide post, the return spring will be compressed. At this time, the return spring provides elastic force. According to the action and reaction forces, the connection between the pressure cap body and the T-shaped connecting post is more secure. The sliding sleeve is slidably connected to the bottom of the pressure cap body, making the entire structure more stable and less prone to loosening. By utilizing the interrelationship and interaction between the structures, multiple functions are realized and the performance is improved. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the overall structure of the welding pin type cover plate for aluminum electrolytic capacitors of the present invention.

[0025] Figure 2 This is a schematic diagram of the internal structure of the welding pin type cover plate for aluminum electrolytic capacitors of the present invention.

[0026] Figure 3 This is a schematic diagram of the top cover device in the welding pin type cover plate for aluminum electrolytic capacitors of the present invention.

[0027] Figure 4 The welding pin type cover plate for aluminum electrolytic capacitors of the present invention Figure 3 Enlarged view of a portion of point A in the middle.

[0028] Figure 5 This is a schematic diagram of the column device structure in the welding pin type cover plate for aluminum electrolytic capacitors of the present invention.

[0029] Figure 6 This is a schematic diagram of the capping device in the welding pin type cover plate for aluminum electrolytic capacitors of the present invention.

[0030] In the diagram: 1. Shell, 2. Top cover device, 3. Lead wire, 4. Core package, 5. Connector, 6. Filler, 21. Cover body, 22. Shock absorption device, 23. Connecting device, 221. Pressure ring, 222. Elastic air bladder, 223. Groove, 224. Flexible composite layer, 231. Column device, 232. Pressure cap device, 2311. T-shaped connecting column, 2312. Compression ring bladder, 2313. Circular air cavity, 2314. Elastic layer, 23101. Main channel, 23102. Branch channel, 2321. Pressure cap body, 2322. Guide column, 2323. Return spring, 2324. Sliding sleeve. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Implementation Case 1:

[0033] Please see Figure 1-6 The present invention provides a technical solution: a welding pin type cover plate for aluminum electrolytic capacitors, including a housing 1 and a top cover device 2, wherein the top cover device 2 is fitted and connected inside the housing 1 and near the top position;

[0034] The top of the connecting device 23 is provided with a lead wire 3, and the inside of the housing 1 is provided with a core package 4. A connector 5 is provided between the top of the core package 4 and the two sides corresponding to the bottom of the connecting device 23. A filler 6 is provided between the bottom of the top cover device 2 and the two sides corresponding to the top of the core package 4 and near the connector 5. With the cooperation between the top cover device 2 and the housing 1, and under the action of the filler 6, the entire device has a compact structure, which can absorb vibration, reduce the impact of vibration, and is not prone to loosening or breakage. It has good stability, is safe and reliable, extends the service life of the equipment, and improves work efficiency and performance.

[0035] Implementation Case 2:

[0036] Cover 21, shock absorber 22, and connecting device 23. Cover 21 is located inside housing 1, shock absorber 22 is located on top of cover 21 and near the edge, and connecting device 23 is located at a corresponding position on the surface of cover 21.

[0037] The shock absorption device 22 is provided with a pressure ring 221, an elastic airbag 222, a groove 223, and a flexible composite layer 224. The pressure ring 221 is slidably connected to the top of the cover 21. The elastic airbag 222 is disposed between the bottom of the pressure ring 221 and the corresponding two sides inside the cover 21. The groove 223 is opened on the top of the pressure ring 221. The flexible composite layer 224 is disposed on the top of the pressure ring 221 and located at the position of the groove 223.

[0038] The cover 21 has a cavity inside and near the edge that is adapted to the pressure ring 221 and the elastic airbag 222. The top of the cover 21 has a sliding groove adapted to the pressure ring 221. When the top cover device 2 is engaged with the housing 1, the pressure ring 221 is pressed by the top of the inner wall of the housing 1. At this time, the pressure ring 221 applies pressure to the elastic airbag 222. The compressed elastic airbag 222 enters the groove 223. The gas pressure causes the flexible composite layer 224 to expand and fit tightly against the top of the inner wall of the housing 1, thereby achieving the effect of buffering and shock absorption.

[0039] Implementation Case 3:

[0040] The connecting device 23 is provided with a column device 231 and a pressure cap device 232. The column device 231 is connected to the surface of the cover 21. The end of the column device 231 is covered and extends to its top. The pressure cap device 232 is threadedly connected to the column device 231.

[0041] The column device 231 is provided with a T-shaped connecting column 2311, a compression ring 2312, a circular air cavity 2313, and an elastic layer 2314. The T-shaped connecting column 2311 is connected to the cover 21. The compression ring 2312 is located on the bottom edge of the surface of the T-shaped connecting column 2311. The circular air cavity 2313 is opened on the surface of the T-shaped connecting column 2311 and is close to the compression ring 2312. The elastic layer 2314 is located on the surface of the T-shaped connecting column 2311 and is located at the position of the circular air cavity 2313.

[0042] A main channel 23101 is provided inside the T-shaped connecting post 2311 near the bottom. One end of the main channel 23101 is connected to the compression ring 2312. A branch channel 23102 is provided inside the T-shaped connecting post 2311, which connects the main channel 23101 to the circular air chamber 2313. When the pressure cap device 232 and the post device 231 are threaded together, the T-shaped connecting post 2311 will move upward as it is tightened, and the compression ring 2312 will be compressed through the cover 21. At this time, the gas inside is transported to the circular air chamber 2313 through the main channel 23101 and the branch channel 23102, which causes the elastic layer 2314 to expand and fill the gap between the surface of the T-shaped connecting post 2311 and the inside of the cover 21, reducing the impact of vibration and making it less prone to shaking.

[0043] The cap-pressing device 232 includes a cap-pressing body 2321, a guide post 2322, a return spring 2323, and a sliding sleeve 2324. The cap-pressing body 2321 is threadedly connected to the post device 231. The guide post 2322 is slidably connected to the bottom of the cap-pressing body 2321. The return spring 2323 is located between the top of the guide post 2322 and the corresponding two sides inside the cap-pressing body 2321. The sliding sleeve 2324 is slidably connected to the bottom of the cap-pressing body 2321 and fixedly connected to the bottom end of the guide post 2322. When the cap is pressed... When the main body 2321 and the T-shaped connecting post 2311 are threaded together, the pressure cap device 232 will move downward as a whole. Then, through the sliding of the guide post 2322, the return spring 2323 will be compressed. At this time, the return spring 2323 provides elastic force. According to the action and reaction forces, the connection between the pressure cap main body 2321 and the T-shaped connecting post 2311 is more secure. The sliding sleeve 2324 is slidably connected to the bottom of the pressure cap main body 2321, making the whole structure more stable and less prone to loosening.

[0044] In use, first place the entire device in the designated position. After the top cover device 2 mates with the housing 1, press the pressure ring 221 with the top of the inner wall of the housing 1. At this time, the pressure ring 221 applies pressure to the elastic airbag 222. The compressed elastic airbag 222 then enters the groove 223. Using the gas pressure, the flexible composite layer 224 expands and fits tightly against the top of the inner wall of the housing 1, thereby achieving the effect of buffering and shock absorption. It makes full use of its own pressing force during mating to achieve flexible contact and promptly dissipate vibration. Furthermore, when the pressure cap device 232 and the column device 231 are threaded together, as they are continuously tightened, the T-shaped connecting column 2311 will move upward and compress the compression ring 2312 through the cover 21. At this time, the internal gas is transported through the main channel 23101 and the branch channel 23102. The air is delivered into the circular air cavity 2313, causing the elastic layer 2314 to expand and fill the gap between the surface of the T-shaped connecting post 2311 and the interior of the cover 21, reducing the impact of vibration and preventing shaking. When the cap body 2321 is threaded with the T-shaped connecting post 2311, the cap device 232 moves downward, and the guide post 2322 slides, compressing the return spring 2323. At this time, the return spring 2323 provides elastic force. According to the action and reaction forces, the connection between the cap body 2321 and the T-shaped connecting post 2311 is more secure. The sliding sleeve 2324 slides to the bottom of the cap body 2321, making the whole structure more stable and less prone to loosening. By utilizing the interconnection and interaction between the structures, multiple functions are realized and the performance is improved.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pin-type cover plate for an aluminum electrolytic capacitor comprising a case (1), a top cover device (2), characterized in that: The top cover device (2) is fitted inside the housing (1) and near the top; The top cover device (2) is provided with a cover body (21), a shock-absorbing device (22), and a connecting device (23). The cover body (21) is located inside the shell (1). The shock-absorbing device (22) is located on the top of the cover body (21) and near the edge. The connecting device (23) is located at the corresponding position on the surface of the cover body (21). The shock absorption device (22) is provided with a pressure ring (221), an elastic airbag (222), a groove (223), and a flexible composite layer (224). The pressure ring (221) is slidably connected to the top of the cover (21). The elastic airbag (222) is disposed between the bottom of the pressure ring (221) and the corresponding two sides inside the cover (21). The groove (223) is opened on the top of the pressure ring (221). The flexible composite layer (224) is disposed on the top of the pressure ring (221) and located at the position of the groove (223). The connecting device (23) is provided with a column device (231) and a cap device (232). The column device (231) is connected to the surface of the cover (21). The end of the column device (231) is covered by the cover (21) and extends to its top. The cap device (232) is threadedly connected to the column device (231). The column device (231) is provided with a T-shaped connecting column (2311), a compression ring (2312), a circular air cavity (2313), and an elastic layer (2314). The T-shaped connecting column (2311) is connected to the cover (21). The compression ring (2312) is located on the bottom edge of the surface of the T-shaped connecting column (2311). The circular air cavity (2313) is opened on the surface of the T-shaped connecting column (2311) and close to the compression ring (2312). The elastic layer (2314) is located on the surface of the T-shaped connecting column (2311) and at the position of the circular air cavity (2313). The cap pressing device (232) includes a cap pressing body (2321), a guide post (2322), a return spring (2323), and a sliding sleeve (2324). The cap pressing body (2321) is threadedly connected to the column device (231). The guide post (2322) is slidably connected to the bottom of the cap pressing body (2321). The return spring (2323) is located between the top of the guide post (2322) and the corresponding two sides inside the cap pressing body (2321). The sliding sleeve (2324) is slidably connected to the bottom of the cap pressing body (2321) and fixedly connected to the bottom end of the guide post (2322).

2. The stud cap for aluminum electrolytic capacitors according to claim 1, wherein: The top of the connecting device (23) is provided with a lead wire (3), the inside of the housing (1) is provided with a core package (4), a connector (5) is provided between the top of the core package (4) and the two sides corresponding to the bottom of the connecting device (23), and a filler (6) is provided between the bottom of the top cover device (2) and the two sides corresponding to the top of the core package (4) and near the connector (5).

3. The pin-type cover plate for an aluminum electrolytic capacitor according to claim 1, characterized in that: The cover (21) has a cavity inside and near the edge that is adapted to the pressure ring (221) and the elastic airbag (222). The top of the cover (21) has a sliding groove adapted to the pressure ring (221).

4. The stud termination cover plate for aluminum electrolytic capacitors of claim 1 wherein: The cover (21) has corresponding perforations at the corresponding positions on its surface that are compatible with the column device (231), and the top of the column device (231) has an external thread that is compatible with the pressure cap device (232).

5. The stud termination cover plate for aluminum electrolytic capacitors of claim 1 wherein: The T-shaped connecting post (2311) has a main channel (23101) inside and near the bottom. One end of the main channel (23101) is connected to the compression ring (2312). The T-shaped connecting post (2311) has a branch channel (23102) inside, which connects the main channel (23101) to the circular air chamber (2313).

6. The stud termination cover plate for aluminum electrolytic capacitors of claim 1 wherein: The pressure cap body (2321) has a sliding groove inside and at the bottom position that is adapted to the guide post (2322), and the guide post (2322) is evenly distributed at the bottom of the pressure cap body (2321).

Images