CN210015788U - Waterproof electrolytic capacitor structure - Google Patents
Waterproof electrolytic capacitor structure Download PDFInfo
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- CN210015788U CN210015788U CN201920285122.8U CN201920285122U CN210015788U CN 210015788 U CN210015788 U CN 210015788U CN 201920285122 U CN201920285122 U CN 201920285122U CN 210015788 U CN210015788 U CN 210015788U
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Abstract
The utility model relates to a waterproof electrolytic capacitor structure, belonging to the field of capacitors, comprising an electrical appliance box and a capacitor arranged on the electrical appliance box, the capacitor comprises a capacitor body, wherein a pin is arranged at one end of the capacitor body, a sleeve is sleeved at one end of the capacitor body close to the pin, a heat-conducting silica gel layer is wrapped at one end of the capacitor body far away from the pin, one end of the heat-conducting silica gel layer close to the sleeve is covered on the surface of the sleeve to form a lamination part, a first sealing ring is hooped at the lamination part, the diameter of the first sealing ring is smaller than that of the capacitor body, a clamping ring is further arranged outside the capacitor body, a clamping groove is arranged on the clamping ring corresponding to the first sealing ring and is in sealing fit, and the snap ring is tightly matched with the capacitor body, the electric appliance box is provided with a mounting hole corresponding to the capacitor, the sleeve is arranged in the mounting hole, and a second sealing ring is arranged in front of the electric appliance box and the snap ring. The utility model discloses good waterproof nature has.
Description
Technical Field
The utility model relates to a condenser field, in particular to waterproof electrolytic capacitor structure.
Background
The aluminum electrolytic capacitor is widely applied to electronic circuits and is used for the aspects of blocking AC, coupling, bypassing, filtering, tuning loop, energy conversion, control and the like of the circuits. In modern circuits, capacitors leak into the air due to their large size due to limitations of the volume, space, etc. of the circuits used, to reduce the size of the internal volume of the circuits. However, the main material of the capacitor is aluminum-based material, aluminum is easily reacted with water, carbon dioxide, sulfur dioxide and other substances in the air to cause corrosion of the outside of the capacitor, and weathering of an external sleeve causes short circuit and short circuit of the capacitor, which seriously affects the service life of the capacitor itself and brings inconvenience to later maintenance of the circuit, so that protection of the capacitor in the external circuit part is very important.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a waterproof electrolytic capacitor structure, which includes an electrical box and a capacitor disposed on the electrical box, wherein the capacitor includes a capacitor body, one end of the capacitor body is provided with a pin, one end of the capacitor body, which is close to the pin, is sleeved with a sleeve, one end of the capacitor, which is far away from the pin, is wrapped with a heat-conducting silica gel layer, one end of the heat-conducting silica gel layer, which is close to the sleeve, covers the surface of the sleeve to form a lamination, the lamination is hooped with a first sealing ring, the diameter of the first sealing ring is smaller than that of the capacitor body, a snap ring is further disposed outside the capacitor body, a clamping groove is disposed corresponding to the first sealing ring, the clamping groove is in sealing fit with the first sealing ring, the snap ring is in tight fit with the capacitor body, and the electrical box is provided, the sleeve is arranged in the mounting hole, and a second sealing ring is arranged in front of the electric appliance box and the clamping ring.
One end of the capacitor body, which is not provided with the pins, is completely wrapped by the heat-conducting silicon adhesive layer, so that the end is isolated from the external environment, and the contact between the end and moisture in the air and the like is avoided, and the capacitor body is prevented from being corroded by the external environment; in addition, the first sealing ring hooped at the laminated position presses the heat conduction sealing ring on the sleeve, so that the heat conduction silicon rubber layer is in sealing fit with the sleeve, the contact of moisture and the like in the air with the capacitor body through a gap between the heat conduction silicon rubber layer and the sleeve is avoided, and the capacitor body is further protected from being corroded.
In addition, the sleeve pipe is fixed on the capacitor body through modes such as gluing, and the capacitor body and the sleeve pipe can not be reversed and move relatively, so that when the capacitor body is installed on the electrical box through the sleeve pipe, the capacitor body can be prevented from shaking relative to the electrical box, and the working stability of the capacitor is ensured. Meanwhile, the sleeve is made of PET plastic, has good hardness and strength, and can protect the capacitor body from being extruded.
The snap ring cramps on the surface of capacitor body to can compress tightly and fix first sealing washer on capacitor body, avoid the sealing washer not hard up, the second sealing washer between snap ring and the electrical apparatus case can make snap ring and electrical apparatus case seal cooperation simultaneously, thereby avoids moisture etc. in the air to enter into the electrical apparatus incasement portion through the mounting hole on the electrical apparatus case.
Preferably, a first threaded hole is formed in the clamping ring, a second threaded hole is formed in the electrical appliance box corresponding to the first threaded hole, the first threaded hole is a through hole, and the second threaded hole is a blind hole.
The capacitor body can be fixed to the capacitor box by screwing the bolts into the first screw holes and the second screw holes and fixing the snap ring to the electric box.
Preferably, the surface of the heat dissipation silica gel layer located at the bottom of the capacitor body is provided with a heat dissipation fin.
The fin of capacitor body's bottom department can be further increase the utility model discloses a thermal diffusivity avoids capacitor body because of the high temperature is impaired to and protection heat conduction silica gel layer.
Further, the cooling fin comprises a polypropylene adhesive layer and a PET layer, and the polypropylene adhesive layer is bonded on the surface of the cooling silica gel layer.
The PET layer can play a role in protecting the polypropylene adhesive layer and the heat dissipation silica gel layer.
Preferably, the width of the first sealing ring is larger than the width of the lamination layer.
The width of the sealing ring is larger than that of the lamination part, so that the sealing ring can completely wrap the lamination part, and the sealing performance of the lamination part is ensured.
Further, the height of sealing washer is greater than 2 mm.
Further, the width of the lamination part is 3-10 mm.
Preferably, the snap ring is provided with a notch, support pieces are arranged at two ends of the snap ring, and third threaded holes are formed in the two support pieces.
The diameter of the clamping ring can be reduced through the locking of the bolts penetrating through the third threaded holes, so that the clamping ring is hooped on the capacitor body, and the stability of the connection structure of the clamping ring and the capacitor body is guaranteed.
Preferably, the electrical box is of a sealed cavity structure.
The closed electric appliance box can prevent moisture and the like from entering the electric appliance box and then contacting the capacitor body, so that the part of the capacitor body in the electric appliance box is prevented from being corroded.
Preferably, a gap is formed between one end of the sleeve close to the pin and the end face of the capacitor body provided with the pin.
The gap can leak out of the trademark, parameters, etc. on the capacitor for ease of maintenance.
The principle and effect of the present invention will be further explained by combining the above technical solutions:
the utility model discloses a sleeve pipe is installed on inclosed electrical apparatus case sealedly, uses the heat conduction silica gel layer to protect the condenser body simultaneously, keeps apart condenser and external environment comprehensively to avoid the condenser to receive the corruption of external environment.
Drawings
FIG. 1 is a schematic structural view of a waterproof electrolytic capacitor structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a capacitor body according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a capacitor body according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a snap ring according to an embodiment of the present invention.
Description of reference numerals:
1-capacitor, 11-capacitor body, 111-pin, 12-bushing, 13-heat conducting silica gel layer, 14-first sealing ring, 15-snap ring, 151-first threaded hole, 152-support sheet, 16-second sealing ring, 171-polypropylene adhesive layer, 172-PET layer, 2-electrical box, and 21-second threaded hole.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples:
referring to fig. 1-4, a waterproof electrolytic capacitor 1 structure includes an electrical apparatus box 2 and a capacitor 1 disposed on the electrical apparatus box 2, where the capacitor 1 includes a capacitor body 11, one end of the capacitor body 11 is provided with a pin 111, one end of the capacitor body 11 close to the pin 111 is sleeved with a sleeve 12, one end of the capacitor 1 far from the pin 111 is wrapped with a heat-conducting silica gel layer 13, one end of the heat-conducting silica gel layer 13 close to the sleeve 12 is covered on the surface of the sleeve 12 to form a lamination, the lamination is hooped with a first sealing ring 14, the diameter of the first sealing ring 14 is smaller than that of the capacitor body 11, a snap ring 15 is further disposed outside the capacitor body 11, the snap ring 15 is provided with a caulking groove corresponding to the first sealing ring 14, and the caulking groove is in sealing fit with the first sealing ring 14, and snap ring 15 with capacitor body 11 tight fit, electrical apparatus case 2 corresponds capacitor 1 is provided with the mounting hole, sleeve pipe 12 install in the mounting hole, just electrical apparatus case 2 with be provided with second sealing washer 16 before snap ring 15.
One end of the capacitor body 11, which is not provided with the pins 111, is completely wrapped by the heat-conducting silicon rubber layer 13, so that the end is isolated from the external environment, and is prevented from contacting with moisture in the air and the like, and the capacitor body 11 is prevented from being corroded by the external environment; in addition, the first sealing ring 14 tightened at the lamination portion presses the heat-conducting sealing ring against the sleeve 12, so that the heat-conducting silica gel layer 13 is in sealing fit with the sleeve 12 to prevent moisture and the like in the air from contacting the capacitor body 11 through a gap between the heat-conducting silica gel layer 13 and the sleeve 12, and further protect the capacitor body 11 from corrosion.
In addition, sleeve pipe 12 is fixed on capacitor body 11 through modes such as gluing, and capacitor body 11 and sleeve pipe 12 can't be anti-relatively moved to when installing capacitor body 11 on electrical apparatus case 2 through sleeve pipe 12, can avoid capacitor body 11 to rock for electrical apparatus case 2, thereby guarantee the stability of condenser 1 work. Meanwhile, the sleeve 12 is made of PET plastic, has good hardness and strength, and can protect the capacitor body 11 from being extruded.
The snap ring 15 cramps on capacitor body 11's surface to can compress tightly and fix first sealing washer 14 on capacitor body 11, avoid the sealing washer not hard up, second sealing washer 16 between snap ring 15 and the electrical apparatus case 2 can be so that snap ring 15 and electrical apparatus case 2 seal cooperation simultaneously, thereby avoid moisture etc. in the air to enter into electrical apparatus case 2 inside through the mounting hole on electrical apparatus case 2.
In one embodiment, the snap ring 15 is provided with a first threaded hole 151, the electrical box 2 is provided with a second threaded hole 21 corresponding to the first threaded hole 151, the first threaded hole 151 is a through hole, and the second threaded hole 21 is a blind hole.
The capacitor body 11 can be fixed to the capacitor box by screwing the bolts into the first screw holes 151 and the second screw holes 21 and defining the snap ring 15 in the electric box 2.
In one embodiment, the surface of the heat dissipation silica gel layer at the bottom of the capacitor body 11 is provided with a heat sink.
The fin of the bottom department of capacitor body 11 can be further increase the utility model discloses a thermal diffusivity avoids capacitor body 11 impaired because of the high temperature to and protection heat conduction silica gel layer 13.
In one embodiment, the heat sink includes a polypropylene adhesive layer 171 and a PET layer 172, and the polypropylene adhesive layer 171 is bonded to the surface of the heat dissipation silicone layer.
The PET layer 172 may function to protect the polypropylene adhesive layer 171 and the heat-dissipating silicone layer.
In one embodiment, the width of the first seal ring 14 is greater than the width of the stack.
The width of the sealing ring is larger than that of the lamination part, so that the sealing ring can completely wrap the lamination part, and the sealing performance of the lamination part is ensured.
In one embodiment, the height of the sealing ring is greater than 2 mm.
In one embodiment, the width of the laminate is 3-10 mm.
In one embodiment, the snap ring 15 is provided with a notch, the two ends of the snap ring 15 are both provided with the supporting pieces 152, and the two supporting pieces 152 are both provided with third threaded holes.
The diameter of the snap ring 15 can be reduced by locking the bolt penetrating through the third threaded hole, so that the snap ring 15 is hooped on the capacitor body 11, and the stability of the connection structure of the snap ring 15 and the capacitor body 11 is further ensured.
In one embodiment, the electrical box 2 is a sealed cavity structure.
The closed electrical box 2 can prevent moisture and the like from entering the electrical box 2 and then contacting the capacitor body 11, so that the part of the capacitor body 11 in the electrical box 2 is prevented from being corroded.
In one embodiment, a gap is formed between one end of the sleeve close to the pin 111 and the end surface of the capacitor body 11 provided with the pin 111.
The gap can leak out of the trademark, parameters, etc. on the capacitor 1 for the purpose of facilitating maintenance.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A waterproof electrolytic capacitor structure comprises an electrical appliance box and a capacitor arranged on the electrical appliance box, wherein the capacitor comprises a capacitor body, one end of the capacitor body is provided with a pin, and the waterproof electrolytic capacitor structure is characterized in that one end, close to the pin, of the capacitor body is sleeved with a sleeve, one end, far away from the pin, of the capacitor is wrapped with a heat-conducting silica gel layer, one end, close to the sleeve, of the heat-conducting silica gel layer covers the surface of the sleeve to form a lamination part, the lamination part is hooped with a first sealing ring, the diameter of the first sealing ring is smaller than that of the capacitor body, a clamping ring is further arranged outside the capacitor body, a clamping groove is arranged corresponding to the first sealing ring, the clamping groove is in sealing fit with the first sealing ring, the clamping ring is in tight fit with the capacitor body, and the electrical appliance box is provided with, the sleeve is arranged in the mounting hole, and a second sealing ring is arranged in front of the electric appliance box and the clamping ring.
2. The waterproof electrolytic capacitor structure as claimed in claim 1, wherein the snap ring is provided with a first threaded hole, the electrical box is provided with a second threaded hole corresponding to the first threaded hole, the first threaded hole is a through hole, and the second threaded hole is a blind hole.
3. The waterproof electrolytic capacitor structure according to claim 1, wherein a surface of the heat-dissipating silicone gel layer at the bottom of the capacitor body is provided with heat-dissipating fins.
4. The waterproof electrolytic capacitor structure according to claim 3, wherein the heat sink comprises a polypropylene adhesive layer and a PET layer, and the polypropylene adhesive layer is bonded to the surface of the heat sink silicone layer.
5. The waterproof electrolytic capacitor structure according to claim 1, wherein the width of the first seal ring is larger than the width at the lamination.
6. The waterproof electrolytic capacitor structure according to claim 5, wherein the height of the seal ring is greater than 2 mm.
7. The waterproof electrolytic capacitor structure according to claim 6, wherein the width at the lamination is 3 to 10 mm.
8. The waterproof electrolytic capacitor structure as claimed in claim 1, wherein the retainer ring is provided with a notch, support pieces are provided at both ends of the retainer ring, and third threaded holes are provided in both of the support pieces.
9. The waterproof electrolytic capacitor structure of claim 1, wherein the electrical box is a sealed cavity structure.
10. The waterproof electrolytic capacitor structure according to claim 1, wherein a gap is provided between an end of the sleeve near the lead and an end face of the capacitor body on which the lead is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285122.8U CN210015788U (en) | 2019-03-07 | 2019-03-07 | Waterproof electrolytic capacitor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285122.8U CN210015788U (en) | 2019-03-07 | 2019-03-07 | Waterproof electrolytic capacitor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210015788U true CN210015788U (en) | 2020-02-04 |
Family
ID=69313241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285122.8U Active CN210015788U (en) | 2019-03-07 | 2019-03-07 | Waterproof electrolytic capacitor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210015788U (en) |
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2019
- 2019-03-07 CN CN201920285122.8U patent/CN210015788U/en active Active
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