Solid aluminum electrolytic capacitor

Abstract

The utility model belongs to the field of capacitors, particularly relates to a solid-state aluminum electrolytic capacitor, and aims to solve the problems of circuit failure, even equipment damage and circuit safety reduction caused by the fact that positive and negative leads and a welding part of the conventional capacitor cannot be covered and protected, and provides the following scheme: the solid-state aluminum electrolytic capacitor comprises a sleeve, an aluminum shell is fixedly arranged on the inner wall of the sleeve, a capacitor core is fixedly arranged in the aluminum shell, positive and negative electrode leads are symmetrically and electrically arranged at the top of the capacitor core, and the portion, located outside the capacitor core and the leads, in the aluminum shell is filled with sealant; and the protection assembly is arranged on the sleeve and is used for improving the stability of the capacitor and protecting the welded part. According to the utility model, through the arrangement of the protection assembly, the positive and negative electrode leads and the welding part of the capacitor can be covered and protected, the contact or short circuit of the positive and negative electrode leads and the welding part with other parts is avoided, the circuit fault and even equipment damage are avoided, and the safety of the whole circuit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a solid aluminum electrolytic capacitor. Background Art

[0002] A solid aluminum electrolytic capacitor is an electronic component that uses a solid conductive polymer as the electrolyte instead of a traditional liquid or gel electrolyte. This type of capacitor is typically constructed of aluminum foil as the anode, an aluminum oxide layer as the dielectric layer, and a solid conductive polymer as the cathode material.

[0003] Currently, existing solid-state aluminum electrolytic capacitors are unable to provide protective covers on their positive and negative leads and welding parts after installation, which may cause the positive and negative leads and welding parts to contact or short-circuit other parts, resulting in circuit failure or even damage to the equipment, reducing the safety of the entire circuit. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the positive and negative leads and welding parts of the capacitor cannot be covered and protected, resulting in circuit failure and even damage to equipment, and reducing circuit safety, and to propose a solid aluminum electrolytic capacitor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A solid aluminum electrolytic capacitor comprising:

[0007] A sleeve, wherein an aluminum shell is fixedly provided on the inner wall of the sleeve, a capacitor core is fixedly provided inside the aluminum shell, and positive and negative leads are symmetrically provided on the top of the capacitor core;

[0008] The protective component is arranged on the sleeve and is used to increase the stability of the capacitor and protect the welded part.

[0009] In one possible design, the protective component includes a fixing frame that can be detachably slidably arranged on the outside of the sleeve, and a card slot is provided on both sides of the fixing frame. A spring card is fixedly provided on one side of the inner wall of the two card slots, and a positioning pin is fixedly provided on both sides of the outer wall of the sleeve located at the lead. The two positioning pins are respectively adapted to the two card slots and can be detachably engaged, and fixing adhesive is fixedly provided on both sides of the bottom of the fixing frame.

[0010] In a possible design, buckle grooves are provided on the other two sides of the fixing frame, and anti-slip stripes are fixedly provided on the top and bottom of the two buckle grooves.

[0011] In a possible design, both surfaces where the adhesive is fixed are covered with anti-sticking material.

[0012] In a possible design, a plurality of explosion-proof punching wires are fixedly provided on one end of the sleeve away from the lead.

[0013] In a possible design, a light-emitting diode is embedded in the end of the sleeve away from the lead, and the bottom end of the light-emitting diode is sealed and penetrates the aluminum shell to be electrically connected to the capacitor core.

[0014] In a possible design, the interior of the aluminum shell, which is located outside the capacitor core and the leads, is filled with sealant.

[0015] In this application, when starting to use, first electrically connect the positive and negative leads of the capacitor core, and test the positive and negative leads to ensure that the positive and negative leads are intact with the capacitor core and can be used normally. Then place the capacitor core in the aluminum shell, and then inject sealant so that the sealant penetrates into the aluminum shell to wrap the capacitor core and seal the capacitor core and the aluminum shell to ensure the internal sealing of the capacitor. At the same time, the sealant wraps the capacitor core and can also play a certain buffering role when the capacitor core is located in the aluminum shell. Then, a sleeve with a positioning pin is set on the outside of the aluminum shell and pressed so that the aluminum shell and the sleeve form a whole.

[0016] Then, the complete capacitor is welded to the circuit board or electronic component through the positive and negative leads. After welding, the fixing frame is put into the sleeve, and then the anti-sticking adhesive on the surface of the fixing adhesive is torn off. Then, the fixing frame is pressed down on the sleeve and the position of the side-by-side slot is aligned with the positioning pin. During the movement of the fixing frame, the positioning pin will slide into the slot. At this time, hold the capacitor with one hand and press the fixing frame with the other hand. A crisp sound will be heard during the pressing of the fixing frame. This proves that the positioning pin is inserted into the slot through the spring card, completing the fixation between the fixing frame and the capacitor. When the positioning pin is inserted into the slot and fixed, the fixing adhesive at the bottom of the fixing frame adheres to the circuit board or electronic component, and fixes the capacitor in a specific position. At this time, the fixing frame will cover the positive and negative leads and welding parts of the capacitor so that they are not exposed to the outside, thereby completing the connection and protection of the capacitor.

[0017] A plurality of explosion-proof stamping wires are fixedly arranged at the end of the sleeve away from the lead to improve the safety of the capacitor and avoid excessive internal air pressure and explosion. When the internal air pressure rises to a certain level, the explosion-proof stamping wire will rupture under the action of the internal pressure, releasing the internal gas. A light-emitting diode is embedded in the end of the sleeve away from the lead, and it is ensured that the bottom end of the light-emitting diode is sealed through the aluminum shell and electrically connected to the capacitor core. The light-emitting diode can be used to indicate the working status of the capacitor. When the capacitor fails, the light-emitting diode will light up, reminding the staff of the location of the failed capacitor and allowing timely troubleshooting, thereby eliminating the need for staff to measure the capacitors one by one, thereby improving the work efficiency of the staff.

[0018] When it is necessary to disassemble and replace the capacitor, you can hold the capacitor and buckle the buckle slots on both sides of the fixing frame. The anti-slip stripes on the buckle slots can increase the friction between the hand and the fixing frame, making it easier to buckle the fixing frame. Then lift the fixing frame upward so that the positioning pin is first disengaged from the spring clip. Then continue to pull the fixing frame until the positioning pin disengages from the slot. Then continue to pull the fixing frame to remove it from the outside of the sleeve. Then replace the new capacitor and install the fixing frame on the new capacitor again according to the above operations and cover it, the positive and negative leads and the welding parts for protection.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, multiple explosion-proof punching lines are provided. When the internal pressure rises to a certain level, the explosion-proof punching lines will rupture under the action of the internal pressure, releasing the internal gas, thereby improving the safety of the capacitor and avoiding explosion caused by excessive internal pressure.

[0021] The present invention provides a light-emitting diode that can be used to indicate the working status of a capacitor. When a capacitor fails, the light-emitting diode lights up, reminding the operator of the location of the failed capacitor and enabling timely troubleshooting. This eliminates the need for the operator to measure capacitors one by one, thereby improving the operator's work efficiency.

[0022] In the utility model, by providing a protective component, when the fixing frame slides to an appropriate position along the sleeve, the spring clip can be elastically snapped into the corresponding position of the positioning pin on the sleeve, thereby conveniently fixing the capacitor in the corresponding position without the need for additional fixing tools or steps, which not only simplifies the installation process of the capacitor but also improves the installation efficiency. At the same time, the fixing frame can cover the positive and negative leads and welding parts of the capacitor to prevent the positive and negative leads and welding parts from contacting or short-circuiting with other parts, causing circuit failure or even damage to the equipment, thereby improving the safety of the entire circuit.

[0023] The utility model can cover and protect the positive and negative leads and welding parts of the capacitor by setting the protection component, so as to prevent the positive and negative leads and welding parts from contacting or short-circuiting with other parts, causing circuit failure or even damaging equipment, thereby improving the safety of the entire circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall main structure of a solid-state aluminum electrolytic capacitor proposed in the present invention;

[0025] Figure 2 This is a schematic diagram of the overall bottom-up structure of a solid-state aluminum electrolytic capacitor proposed in the present invention;

[0026] Figure 3This is a schematic diagram of the overall disassembly structure of a solid aluminum electrolytic capacitor proposed in the present invention;

[0027] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a sleeve of a solid aluminum electrolytic capacitor.

[0028] In the figure: 1. Sleeve; 2. Aluminum shell; 3. Capacitor core; 4. Sealant; 5. Lead; 6. Explosion-proof stamping line; 7. Light-emitting diode; 8. Fixing frame; 9. Slot; 10. Spring clip; 11. Fixing glue; 12. Positioning pin; 13. Anti-sticking; 14. Anti-slip stripes. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Example 1

[0031] Reference Figure 1-4 , a solid aluminum electrolytic capacitor, which is used in the field of capacitor technology, including:

[0032] The sleeve 1 has an aluminum shell 2 fixedly provided on its inner wall, and a capacitor core 3 fixedly provided inside the aluminum shell 2. The capacitor core 3 is the core component of the capacitor and is used to store electrical energy. The top of the capacitor core 3 is symmetrically electrically provided with positive and negative leads 5 for connecting to an external circuit.

[0033] The protective component is provided on the sleeve 1 to increase the stability of the capacitor and protect the contact part after welding. The protective component includes a fixing frame 8 that can be detachably slidably provided on the outside of the sleeve 1. A card slot 9 is provided on both sides of the fixing frame 8. A spring card 10 is fixedly provided on one side of the inner wall of the two card slots 9. A positioning pin 12 is fixedly provided on both sides of the outer wall of the sleeve 1 at the lead 5. The two positioning pins 12 are respectively adapted to the two card slots 9 and can be detached from the card slot. Through the cooperation of the positioning pin 12 and the card slot 9, the accurate position of the fixing frame 8 on the sleeve 1 can be ensured. At the same time, it is convenient for disassembly and installation. When the fixing frame 8 slides to the appropriate position along the sleeve 1, the spring clip 10 can be elastically clamped into the corresponding position of the positioning pin 12 on the sleeve 1, thereby conveniently fixing the capacitor in the corresponding position without the need for additional fixing tools or steps. This not only simplifies the installation process of the capacitor, but also improves the installation efficiency. At the same time, the fixing frame 8 can cover the positive and negative leads 5 and the welding part of the capacitor to prevent the positive and negative leads 5 and the welding part from contacting or short-circuiting with other parts, causing circuit failure or even damage to the equipment, thereby improving the safety of the entire circuit.

[0034] In order to increase the adhesion between the fixing frame 8 and the mounting surface and facilitate installation with the circuit board or electronic components, fixing adhesive 11 is fixed on both sides of the bottom of the fixing frame 8. When necessary, the capacitor can be fixed in a specific position by tearing off the anti-sticking 13 and using the fixing adhesive 11.

[0035] In order to improve the convenience of operation and anti-slip performance, buckle grooves are provided on the other two sides of the fixing frame 8, and anti-slip stripes 14 are fixed on the top and bottom of the two buckle grooves, so that the user can hold the capacitor and buckle the buckle grooves on both sides of the fixing frame 8. The anti-slip stripes 14 on the buckle grooves can increase the friction between the hand and the fixing frame 8, making it easier to buckle the fixing frame 8, and then lift the fixing frame 8 upward so that the positioning pin 12 is first disengaged from the spring card 10, and then continue to pull the fixing frame 8 to disengage the positioning pin 12 from the card slot 9, and then continue to pull the fixing frame 8 to remove it from the outside of the sleeve 1 and replace it with a new capacitor.

[0036] In order to improve the safety of the capacitor, a plurality of explosion-proof stamping wires 6 are fixedly provided on the end of the sleeve 1 away from the lead 5. The explosion-proof stamping wires 6 can rupture when the internal pressure of the capacitor increases abnormally, thereby releasing the pressure and preventing the capacitor from exploding.

[0037] In addition, a light-emitting diode 7 is embedded in the end of the sleeve 1 away from the lead 5. The bottom end of the light-emitting diode 7 is sealed through the aluminum shell 2 and is electrically connected to the capacitor core 3. When the capacitor fails, the light-emitting diode 7 will light up, reminding the staff of the location of the failed capacitor and allowing timely troubleshooting, thereby eliminating the need for staff to measure the capacitors one by one, thereby improving the staff's work efficiency.

[0038] In order to ensure the sealing and stability of the capacitor, the interior of the aluminum shell 2 is filled with sealant 4 outside the capacitor core 3 and the lead 5. The sealant 4 can effectively prevent external factors such as moisture and dust from entering the interior of the capacitor, thereby ensuring the performance and life of the capacitor.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the capacitor core 3 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solid aluminum electrolytic capacitor, characterized in that: include: A sleeve (1), wherein an aluminum shell (2) is fixedly provided on the inner wall of the sleeve (1), a capacitor core (3) is fixedly provided inside the aluminum shell (2), and positive and negative electrode leads (5) are symmetrically and electrically provided on the top of the capacitor core (3); A protective component is provided on a sleeve (1) and is used to increase the stability of the capacitor and protect the welded portion. The protective component comprises a fixing frame (8) that is detachably slidably provided on the outside of the sleeve (1). Both sides of the fixing frame (8) are provided with card slots (9). One side of the inner wall of each of the two card slots (9) is fixedly provided with a spring card (10). Both sides of the outer wall of the sleeve (1) at the lead (5) are fixedly provided with positioning pins (12). The two positioning pins (12) are respectively adapted to the two card slots (9) and can be detachably engaged. Both sides of the bottom of the fixing frame (8) are fixedly provided with fixing adhesive (11).

2. A solid aluminum electrolytic capacitor according to claim 1, characterized in that: Buckle grooves are provided on the other two sides of the fixing frame (8), and anti-slip stripes (14) are fixedly provided on the top and bottom of the two buckle grooves.

3. The solid aluminum electrolytic capacitor according to claim 1, characterized in that: The surfaces of the two fixed adhesives (11) are both covered with anti-sticking (13).

4. The solid aluminum electrolytic capacitor according to claim 1, characterized in that: A plurality of explosion-proof punching wires (6) are fixedly provided on one end of the sleeve (1) away from the lead wire (5).

5. The solid aluminum electrolytic capacitor according to claim 4, characterized in that: A light-emitting diode (7) is embedded in one end of the sleeve (1) away from the lead (5), and the bottom end of the light-emitting diode (7) is sealed and penetrates the aluminum shell (2) to be electrically connected to the capacitor core (3).

6. The solid aluminum electrolytic capacitor according to claim 1, characterized in that: The interior of the aluminum shell (2) is located outside the capacitor core (3) and the lead wire (5) and is filled with sealant (4).

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