A capacitor for preventing electrolyte leakage and a working method thereof
By installing capacitors inside the shell of the electrochemical capacitor and designing thermal and conductive structures, the problem of electrolyte leakage is solved, extending the service life of the capacitor and improving the heat dissipation effect.
Patent Information
- Application Number
- CN202411984467.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-08
AI Technical Summary
Before the adsorption material fails, the expansion and contraction of the shell and peripheral components of the electrochemical capacitors lead to leakage of the electrolyte, which in turn causes damage to the seal and the early scrapping of the capacitor.
A capacitor that prevents electrolyte leakage is designed. By installing a capacitor inside the shell and setting a heat conducting plate, a contact plate, an elastic rod and an arc-shaped block on the shell and cover plate, a heat dissipation structure is formed; at the same time, a limit ring, a bottom ring and a connecting rod are provided on the bottom plate to form a conductive structure to collect liquid leakage.
It effectively avoids the turbulence of the electrolyte inside the shell, increases the service life of the capacitor, improves the maintenance level, and ensures the heat dissipation of the capacitor during operation through the heat dissipation structure.
Smart Images
Figure CN119786279A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of capacitors, and in particular to a capacitor capable of preventing electrolyte leakage and a working method thereof. Background Art
[0002] Electrochemical capacitors, also known as supercapacitors, are a new type of energy storage device between traditional capacitors and batteries. The working principle of electrochemical capacitors is to store electrical energy using electrochemical processes. Their core components are electrodes, which are connected by electrolytes and move relative to each other in them, resulting in electrical reactions and the storage or release of electrical energy. The charge storage of electrochemical capacitors mainly relies on the interfacial double layer formed between the electrodes and the electrolyte, as well as possible Faraday processes (in pseudocapacitors).
[0003] Before the adsorption material of the capacitor fails, the shell and surrounding components will expand and contract repeatedly with the adsorption material, causing serious deformation of the shell, resulting in electrolyte leakage from the gaps in the shell. The more layers of the electrode group, the greater the thickness change, the easier it is to cause electrolyte leakage, and even damage the seal, resulting in premature scrapping of the capacitor.
[0004] Among them, the main leakage points include: the welding point between the metal shell and the sealing cover, and the connection point between the pin and the sealing cover. Therefore, the technical personnel in this field provide a capacitor that prevents electrolyte leakage and a working method thereof to solve the problems raised in the above background technology. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides a capacitor that prevents electrolyte leakage, comprising a shell, wherein a cover plate is threadedly connected to the upper end of the shell, a bottom plate is fixedly connected to the lower part of the shell, and a capacitor is installed inside the cover plate and the bottom plate;
[0006] A plurality of connection grooves are symmetrically fixedly connected on both sides of the shell, and a plurality of connection grooves on one side are slidably connected to a heat conducting plate, a contact plate is fixedly connected to one side of the heat conducting plate, an elastic rod is fixedly connected above the heat conducting plate, and an arc block is fixedly connected to one end of the elastic rod, and the arc block is located below the edge of the cover plate;
[0007] A connecting sleeve is fixedly connected above the bottom plate, and the capacitor pin is inserted into the connecting sleeve. A limiting ring is installed above the bottom plate on the outside of the connecting sleeve, and a bottom ring is fixedly connected above the bottom plate on the outside of the limiting ring. A connecting rod is slidably connected between the bottom ring and the limiting ring, and one end of the connecting rod is fixedly connected to a connecting plate.
[0008] Preferably, a connecting pin is inserted below the bottom plate, the upper end of the connecting pin is connected to the connecting sleeve, and a connecting cover is provided above the connecting sleeve.
[0009] Preferably, a plurality of heat sinks 1 are provided on the outer side of the shell, and the heat sinks are circumferentially distributed on the outer side of the shell. A plurality of heat sinks 2 are provided above the cover plate, and a connecting plate is fixedly connected above one of the heat sinks 2, and the connecting plate is located at the center of the cover plate.
[0010] Preferably, the outer side of one end of the limit ring is bent downward to align with the outer side of the bottom ring, a gap is formed between the outer side of the limit ring and the top of the bottom ring, a track is formed between the limit ring and the bottom ring, one end of the connecting rod is inserted into the limit ring and the bottom ring through the gap, and a roller is installed on one end of the connecting rod inside the limit ring and the bottom ring.
[0011] Preferably, a groove is provided above the connecting plate, and the connecting plate and the limiting ring are both made of corrosion-resistant materials.
[0012] Preferably, fiber columns are fixedly connected to both sides of the heat conducting plate, and the fiber columns are located at the upper and lower ends of the connecting groove.
[0013] Preferably, a sponge pad is fixedly connected below the cover plate.
[0014] The present invention also provides a method for using a capacitor that prevents electrolyte leakage, comprising the following steps:
[0015] a. Solder the housing to the circuit board, and solder the connecting pins to the circuit board with solder;
[0016] b. Cut the capacitor pins to a suitable length and then insert the capacitor pins into the connecting sleeve;
[0017] c. Screw the cover onto the housing.
[0018] Technical effects and advantages of the present invention:
[0019] 1. The present invention installs the capacitor inside the shell and isolates the capacitor from the circuit board through the shell, thereby avoiding the circuit board from being corroded by direct leakage of the capacitor, thereby increasing the loss cost and improving the degree of maintenance. In addition, the heat dissipation structure inside and outside the shell ensures that the heat of the capacitor can be dissipated in time when it is working.
[0020] 2. The present invention is designed with a connecting plate. When the capacitor is mounted on a circuit board and the circuit board is mounted inside a device, when the capacitor is horizontal, the leaked liquid will flow downward. The connecting plate can move to the bottom of the capacitor under the influence of gravity, thereby catching the leaked liquid of the capacitor and avoiding turbulent flow of the electrolyte inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the structure provided by this application;
[0022] Figure 2 It is a schematic diagram of the structure inside the shell provided by the present application;
[0023] Figure 3 It is a structural schematic diagram of the connection slot provided by the present application;
[0024] Figure 4 It is a structural schematic diagram of the heat conducting plate provided in this application;
[0025] Figure 5 It is a schematic diagram of the structure of the limit ring provided by the present application;
[0026] Figure 6 is a schematic diagram of the structure of the roller provided by the present application;
[0027] In the figure:
[0028] 1. Shell; 2. Heat sink 1; 3. Cover plate; 4. Heat sink 2; 5. Connecting plate; 6. Connecting pins; 7. Connecting groove; 8. Contact plate; 9. Bottom plate; 10. Heat conducting plate; 11. Fiber column; 12. Elastic rod; 13. Arc block; 14. Bottom ring; 15. Limiting ring; 16. Connecting plate; 17. Connecting sleeve; 18. Connecting cover; 19. Connecting rod; 20. Roller. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] See also Figures 1 to 6 In this embodiment, a capacitor for preventing electrolyte leakage is provided, including a shell 1, a cover plate 3 is threadedly connected to the upper end of the shell 1, a bottom plate 9 is fixedly connected to the lower part of the shell 1, and capacitors are installed inside the cover plate 3 and the bottom plate 9; the capacitor is pressed against the bottom plate 9 by the cover plate 3.
[0031] A plurality of connection grooves 7 are symmetrically fixedly connected on both sides of the shell 1, and a plurality of connection grooves 7 on one side are slidably connected to a heat conducting plate 10, a contact plate 8 is fixedly connected to one side of the heat conducting plate 10, an elastic rod 12 is fixedly connected above the heat conducting plate 10, and an arc block 13 is fixedly connected to one end of the elastic rod 12, and the arc block 13 is located below the edge of the cover plate 3; the heat of the capacitor is guided to the shell 1 through the plurality of connection grooves 7, the heat conducting plate 10 and the contact plate 8, and is dissipated through the shell 1, and the arc block 13 is pressed down during the tightening process of the cover plate 3, and the arc block 13 is pushed down to push the elastic One end of the rod 12 descends, and the other end of the elastic rod 12 pushes the heat conducting plate 10 to slide inside the connecting groove 7, and the heat conducting plate 10 drives the contact plate 8 to move close to the outside of the capacitor. The heat conducting plate 10 and the contact plate 8 are movable, so that various types of capacitors can be applied. At the same time, the heat conducting plate 10 is pushed by the arc block 13 and the elastic rod 12. Multiple heat conducting plates 10 push different places of the contact plate 8, so that there are multiple force points on one side of the contact plate 8, so that the contact plate 8 can bend and change the curvature, so that the contact plate 8 is more closely fitted to the outside of the capacitor.
[0032] A connecting sleeve 17 is fixedly connected above the bottom plate 9, and the capacitor pin is inserted into the connecting sleeve 17. A limiting ring 15 is installed above the bottom plate 9 on the outside of the connecting sleeve 17, and a bottom ring 14 is fixedly connected above the bottom plate 9 on the outside of the limiting ring 15. A connecting rod 19 is slidably connected between the bottom ring 14 and the limiting ring 15, and a connecting plate 16 is fixedly connected to one end of the connecting rod 19. When the housing 1 in use is horizontal with the capacitor, the connecting plate 16 slides to the bottom of the capacitor under the action of gravity, and the electrolyte flowing out of the sealing cover and the pin at one end of the capacitor drips into the inside of the connecting plate 16 under the action of gravity.
[0033] In this embodiment, specifically, a connection pin 6 is inserted under the bottom plate 9, and the upper end of the connection pin 6 is connected to the connection sleeve 17, and a connection cover 18 is provided above the connection sleeve 17. The housing 1 is mounted on the circuit board through the connection pin 6. The connection cover 18 can provide a larger covering range. When the pin spacing of the capacitor is different from the spacing between the connection sleeves 17, the pins of the capacitor can be bent so that they can be inserted into the connection sleeve 17, and then the bending part is covered by the connection cover 18.
[0034] In this embodiment, specifically, a plurality of heat sinks 2 are provided on the outer side of the housing 1, and the heat sinks 2 are circumferentially distributed on the outer side of the housing 1. A plurality of heat sinks 4 are provided above the cover plate 3, and a connecting plate 5 is fixedly connected above one of the heat sinks 4, and the connecting plate 5 is located at the center of the cover plate 3. The heat dissipation capacity of the housing 1 is increased by the plurality of heat sinks 2 and the heat sinks 4, and the cover plate 3 is made easier to be screwed on by the connecting plate 5.
[0035] In this embodiment, specifically, the outer side of one end of the limit ring 15 is bent downward to align with the outer side of the bottom ring 14, a gap is formed between the outer side of the limit ring 15 and the top of the bottom ring 14, a track is formed between the limit ring 15 and the bottom ring 14, one end of the connecting rod 19 is inserted into the limit ring 15 and the bottom ring 14 through the gap, and one end of the connecting rod 19 is located inside the limit ring 15 and the bottom ring 14 and a roller 20 is installed. The connecting plate 16 slides inside the limit ring 15 and the bottom ring 14 through the connecting rod 19, and slides more smoothly through the roller 20.
[0036] In this embodiment, specifically, a groove is provided above the connecting plate 16, and the connecting plate 16 and the limiting ring 15 are both made of corrosion-resistant materials. When the pins of the capacitor are vertically downward during operation, the electrolyte that flows out drips inside the limiting ring 15, and the limiting ring 15 isolates the electrolyte. When the pins of the capacitor are horizontal during operation, the dripping electrolyte is collected by the connecting plate 16. When the pins are vertically upward during operation, the electrolyte at the pins is located above the sealing cover of the capacitor itself, and is restrained by the edge of the aluminum shell of the capacitor itself to prevent turbulence.
[0037] In this embodiment, specifically, fiber columns 11 are fixedly connected to both sides of the heat conducting plate 10, and the fiber columns 11 are located at the upper and lower ends of the connecting groove 7. The heat conducting plate 10 slides inside the connecting groove 7 through the fiber columns 11.
[0038] In this embodiment, specifically, a sponge pad is fixedly connected below the cover plate 3 .
[0039] In this embodiment, a method for using a capacitor to prevent electrolyte leakage is also provided, comprising the following steps:
[0040] a. Solder the housing 1 to the circuit board, and solder the connecting pin 6 to the circuit board through soldering;
[0041] b. Cut the capacitor pins to a suitable length, and then insert the capacitor pins into the connecting sleeve 17;
[0042] c. Screw the cover plate 3 onto the housing 1.
[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A capacitor for preventing electrolyte leakage, comprising a housing (1), characterized in that: The upper end of the housing (1) is threadedly connected to a cover plate (3), the lower portion of the housing (1) is fixedly connected to a bottom plate (9), and capacitors are installed inside the cover plate (3) and the bottom plate (9); A plurality of connection grooves (7) are symmetrically fixedly connected on both sides of the shell (1); a plurality of connection grooves (7) on one side are all slidably connected to a heat conducting plate (10); a contact plate (8) is fixedly connected to one side of the heat conducting plate (10); an elastic rod (12) is fixedly connected above the heat conducting plate (10); an arc block (13) is fixedly connected to one end of the elastic rod (12); and the arc block (13) is located below the edge of the cover plate (3); A connecting sleeve (17) is fixedly connected above the bottom plate (9), a capacitor pin is inserted into the connecting sleeve (17), a limiting ring (15) is installed above the bottom plate (9) and outside the connecting sleeve (17), a bottom ring (14) is fixedly connected above the bottom plate (9) and outside the limiting ring (15), a connecting rod (19) is slidably connected between the bottom ring (14) and the limiting ring (15), and one end of the connecting rod (19) is fixedly connected to a connecting plate (16).
2. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: A connecting pin (6) is inserted below the bottom plate (9), the upper end of the connecting pin (6) is connected to a connecting sleeve (17), and a connecting cover (18) is provided above the connecting sleeve (17).
3. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: A plurality of heat sink plates (2) are provided on the outer side of the shell (1), and the heat sink plates (2) are circumferentially distributed on the outer side of the shell (1). A plurality of heat sink plates (4) are provided above the cover plate (3), and a connecting plate (5) is fixedly connected above one of the heat sink plates (4), and the connecting plate (5) is located at the center of the cover plate (3).
4. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: The outer side of one end of the limiting ring (15) is bent downward to align with the outer side of the bottom ring (14), a gap is formed between the outer side of the limiting ring (15) and the top of the bottom ring (14), a track is formed between the limiting ring (15) and the bottom ring (14), one end of the connecting rod (19) is inserted into the limiting ring (15) and the bottom ring (14) through the gap, and a roller (20) is installed at one end of the connecting rod (19) located inside the limiting ring (15) and the bottom ring (14).
5. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: A groove is provided above the connecting plate (16), and the connecting plate (16) and the limiting ring (15) are both made of corrosion-resistant materials.
6. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: Fiber columns (11) are fixedly connected to both sides of the heat conducting plate (10), and the fiber columns (11) are located at the upper and lower ends of the connecting groove (7).
7. The capacitor for preventing electrolyte leakage according to claim 1, characterized in that: A sponge pad is fixedly connected below the cover plate (3).
8. A method for operating a capacitor for preventing electrolyte leakage according to any one of claims 1 to 7, characterized in that: The following steps are involved: a. Solder the housing (1) to the circuit board, and solder the connecting pins (6) to the circuit board by soldering; b. Cut the capacitor pins to a suitable length, and then insert the capacitor pins into the connecting sleeve (17); c. Screw the cover (3) onto the housing (1).