CN219873171U - Explosion-proof shell of electrolytic capacitor and electrolytic capacitor - Google Patents
Explosion-proof shell of electrolytic capacitor and electrolytic capacitor Download PDFInfo
- Publication number
- CN219873171U CN219873171U CN202320211234.5U CN202320211234U CN219873171U CN 219873171 U CN219873171 U CN 219873171U CN 202320211234 U CN202320211234 U CN 202320211234U CN 219873171 U CN219873171 U CN 219873171U
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- Prior art keywords
- shell
- electrolytic capacitor
- explosion
- sealing gasket
- proof
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- 239000003990 capacitor Substances 0.000 title claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000003792 electrolyte Substances 0.000 claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229920005549 butyl rubber Polymers 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004880 explosion Methods 0.000 abstract description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 210000002808 connective tissue Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model belongs to the field of capacitor electrolyzers, in particular to an explosion-proof shell of an electrolytic capacitor and the electrolytic capacitor, aiming at the problems that the existing triangle of the explosion-proof tank is fried from the middle, electrolyte injection cannot be blocked when the explosion-proof tank is fried, the tip part is upward after the explosion-proof tank is fried, and hands are easy to scratch during replacement, the utility model provides a scheme that the explosion-proof shell comprises a shell, wherein the shell is cylindrical, the bottom of the shell is provided with an opening, and the top of the shell is provided with a flat spiral groove for blocking the electrolyte injection when the explosion-proof tank is fried; the outer wall of the shell is extruded into an extrusion part through extrusion equipment, and a flanging is arranged at the bottom of the shell. According to the utility model, the flat spiral groove is set, so that the electrolyte can be prevented from being sprayed randomly during explosion, the electrolyte can be prevented from being sprayed, the electrolyte is safer, and the sealing gasket can be firmly fixed in the sealing gasket through the extrusion part and the flanging, so that the sealing gasket is sealed.
Description
Technical Field
The utility model relates to the technical field of capacitor electrolyzers, in particular to an explosion-proof shell of an electrolytic capacitor and the electrolytic capacitor.
Background
The existing electrolytic capacitor shell is generally provided with an explosion-proof tank on the outer surface of the bottom of the electrolytic capacitor shell, so that after the pressure in the electrolytic capacitor shell reaches a certain value, the explosion-proof tank at the bottom of the electrolytic capacitor shell is damaged, and the internal pressure of the electrolytic capacitor is released at a designated place, so that the phenomenon that a core bag in the electrolytic capacitor is punched out of the shell due to overlarge broken opening of the electrolytic capacitor shell is avoided.
Through searching, the utility model with the publication number of CN207441478U discloses an explosion-proof shell of an electrolytic capacitor and the electrolytic capacitor, wherein the explosion-proof shell of the electrolytic capacitor comprises a cylinder body, one axial end of the cylinder body is provided with a cylinder opening, the other axial end of the cylinder body is provided with a bottom cover which is integrally arranged with the cylinder body, one side surface of the bottom cover, which faces the cylinder opening, is provided with an explosion-proof groove, a buffer part is arranged in the explosion-proof groove and is made of permeable materials and used for buffering electrolyte sprayed from the damaged part of the explosion-proof groove when the explosion-proof groove is damaged. The utility model improves the structure of the explosion-proof shell of the electrolytic capacitor and improves the safety performance of the electrolytic capacitor
But this electrolytic capacitor also has the following drawbacks: when the explosion-proof capacitor is used, when the capacitor is exploded, the explosion-proof tank at the top of the shell is pushed open by internal gas, and the triangle of the explosion-proof tank is exploded from the middle, so that electrolyte cannot be blocked from being sprayed when the explosion-proof tank is exploded, the tip part of the explosion-proof tank faces upwards after the explosion-proof tank is exploded, and hands are easily scratched when the explosion-proof tank is replaced.
Disclosure of Invention
The utility model provides an explosion-proof shell of an electrolytic capacitor and the electrolytic capacitor, which solve the defects that the triangle of an explosion-proof groove is fried from the middle, electrolyte cannot be blocked from being sprayed when the triangle is fried, the tip part of the explosion-proof groove faces upwards after the triangle is fried, and hands are easy to scratch during replacement in the prior art.
The utility model provides the following technical scheme:
an explosion-proof housing for an electrolytic capacitor, comprising:
the shell is cylindrical, the bottom of the shell is open, and a flat spiral groove is formed in the top of the shell and used for blocking electrolyte from being sprayed when the shell is exploded;
the outer wall of the shell is extruded into an extrusion part through extrusion equipment, and a flanging is arranged at the bottom of the shell.
In one possible design, the housing is of pure aluminum.
In one possible design, the flat spiral groove is located at the top center of the housing.
An electrolytic capacitor, comprising: the sealing gasket is positioned in the shell, the top of the sealing gasket is fixedly connected with a capacitor core, the bottom of the sealing gasket is fixedly connected with two pins in a penetrating way, one end of each pin extends into the capacitor core, and the bottom of the sealing gasket is abutted to the flange;
the outer wall of the shell is sleeved with an outer film, and the outer film is provided with a capacitance information mark and a positive and negative electrode area mark.
In one possible design, the gasket is fixed in the housing by means of a press.
In one possible design, the outer film is provided with wrap corners at both ends, and the outer film is fixedly sleeved on the outer shell through the wrap corners.
In one possible design, the gasket is a butyl rubber material.
In one possible design, the pins are cold tin plated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
In the utility model, when the capacitor core generates internal electric leakage or short circuit and the temperature is too high and the pressure is too high, the capacitor core can decompose a large amount of gas and electrolyte, and when the pressure reaches a certain value, the flat spiral groove is crushed and then released;
in the utility model, the sealing gasket can be firmly fixed in the shell and sealed by setting the extrusion part and the flanging;
according to the utility model, the flat spiral groove is set, so that the electrolyte can be prevented from being sprayed randomly during explosion, the electrolyte can be prevented from being sprayed, the electrolyte is safer, and the sealing gasket can be firmly fixed in the sealing gasket through the extrusion part and the flanging, so that the sealing gasket is sealed.
Drawings
FIG. 1 is a schematic diagram of an explosion-proof housing of an electrolytic capacitor and a three-dimensional structure of the electrolytic capacitor according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a schematic side sectional structure of an explosion-proof case of an electrolytic capacitor and the electrolytic capacitor according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an explosion-proof housing of an electrolytic capacitor and a top view of the housing of the electrolytic capacitor according to an embodiment of the present utility model;
fig. 4 is an enlarged schematic diagram of an explosion-proof housing of an electrolytic capacitor and a portion a of the electrolytic capacitor according to an embodiment of the present utility model.
Reference numerals:
1. a housing; 2. a flat spiral groove; 3. an outer membrane; 4. pins; 5. a sealing gasket; 6. a capacitor core; 7. an extrusion part; 8. flanging; 9. and wrapping the corner.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
Referring to fig. 1 to 3, an explosion-proof case of an electrolytic capacitor includes:
the shell 1 is cylindrical, the bottom of the shell 1 is open, and a flat spiral groove 2 is arranged at the top of the shell and used for blocking electrolyte injection when the shell is exploded; the outer wall of shell 1 extrudes into extrusion part 7 through extrusion equipment, and the bottom of shell 1 is equipped with turn-ups 8, can block to block electrolyte injection when frying through the settlement of flat helicla flute 2 in the above-mentioned technical scheme, is convenient for protect other electrical components to can not fish tail maintainer's hand when maintaining the dismouting.
Referring to fig. 1 and 2, the electrolytic capacitor comprises a sealing gasket 5, wherein the sealing gasket 5 is positioned in a shell 1, a capacitor core 6 is fixedly connected to the top of the sealing gasket 5, two pins 4 are fixedly connected to the bottom of the sealing gasket 5 in a penetrating manner, one end of each pin 4 extends into the capacitor core 6, and the bottom of the sealing gasket 5 is abutted against a flanging 8; the outer wall cover of shell 1 is equipped with adventitia 3, is equipped with electric capacity information sign and positive negative pole region mark on the adventitia 3, can seal the electric capacity core 6 in shell 1 through sealed pad 5 among the above-mentioned technical scheme, restrict sealed pad 5 in shell 1 through turn-ups 8, make it be convenient for install.
Example 2
Referring to fig. 1 to 3, an explosion-proof case of an electrolytic capacitor includes:
the shell 1 is cylindrical, the bottom of the shell 1 is open, and a flat spiral groove 2 is arranged at the top of the shell and used for blocking electrolyte injection when the shell is exploded; the outer wall of shell 1 extrudes into extrusion part 7 through extrusion equipment, and the bottom of shell 1 is equipped with turn-ups 8, can block to block electrolyte injection when frying through the settlement of flat helicla flute 2 in the above-mentioned technical scheme, is convenient for protect other electrical components to can not fish tail maintainer's hand when maintaining the dismouting.
Referring to fig. 1-3, the casing 1 is made of pure aluminum, and the pure aluminum has the characteristics of electric conduction, heat conduction, corrosion resistance and easy processing, so that the casing is convenient to process and use.
Referring to fig. 3, the flat spiral groove 2 is located at the top center of the casing 1, and in the above technical solution, the flat spiral groove 2 is located at the center of the casing 1, so that the flat spiral groove can effectively block the electrolyte injection, and is convenient for protecting other electric devices.
Referring to fig. 1 and 2, the electrolytic capacitor comprises a sealing gasket 5, wherein the sealing gasket 5 is positioned in a shell 1, a capacitor core 6 is fixedly connected to the top of the sealing gasket 5, two pins 4 are fixedly connected to the bottom of the sealing gasket 5 in a penetrating manner, one end of each pin 4 extends into the capacitor core 6, and the bottom of the sealing gasket 5 is abutted against a flanging 8;
the outer wall cover of shell 1 is equipped with adventitia 3, is equipped with electric capacity information sign and positive negative pole region mark on the adventitia 3, can seal the electric capacity core 6 in shell 1 through sealed pad 5 among the above-mentioned technical scheme, restrict sealed pad 5 in shell 1 through turn-ups 8, make it be convenient for install.
Referring to fig. 2, the gasket 5 is fixed in the housing 1 by the pressing portion 7, and in the above-described embodiment, the gasket 5 can be firmly held in the housing 1 by setting the pressing portion 7.
Referring to fig. 2 and 4, two ends of the outer film 3 are provided with corner wrapping portions 9, the outer film 3 is fixedly sleeved on the outer shell 1 through the corner wrapping portions 9, and in the above technical scheme, the outer film 3 can be limited on the outer shell 1 through the corner wrapping portions 9, so that the outer film cannot be separated from the outer shell 1.
Referring to fig. 2, the gasket 5 is made of butyl rubber, and the butyl rubber is the same as that used in CN 102964701B.
Referring to fig. 2, the lead 4 is made of cold tin plating material, and after the lead 4 made of cold tin plating material in the above technical solution is electrified, tin atoms are very easy to be adsorbed, so that a tin layer is easy to control, and the solderability is good; the tin ash is not easy to oxidize in production, and the generated tin ash is less.
However, as well known to those skilled in the art, the working principle and the wiring method of the capacitor core 6 are common, and all of them belong to conventional means or common general knowledge, and are not described herein in detail, and any choice can be made by those skilled in the art according to the needs or convenience.
The working principle and the using flow of the technical scheme are as follows: when the capacitor is used, when the capacitor core 6 is subjected to internal leakage or short circuit and the temperature is too high and the pressure is too high, the capacitor core 6 can decompose a large amount of gas and electrolyte, when the pressure reaches a certain value, the flat spiral groove 2 is extruded and then released, and the sealing gasket 5 can be firmly fixed in the shell 1 and sealed through the setting of the extrusion part 7 and the flanging 8.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. An explosion-proof housing for an electrolytic capacitor, comprising:
the shell (1) is cylindrical, the bottom of the shell (1) is open, and a flat spiral groove (2) is formed in the top of the shell and used for blocking electrolyte injection when the shell is exploded;
the outer wall of the shell (1) is extruded into an extrusion part (7) through extrusion equipment, and a flanging (8) is arranged at the bottom of the shell (1).
2. The explosion-proof housing of an electrolytic capacitor according to claim 1, wherein the housing (1) is made of pure aluminum.
3. An explosion-proof housing of an electrolytic capacitor according to claim 1, characterized in that the flat spiral groove (2) is located at the top center position of the housing (1).
4. The electrolytic capacitor is characterized by being made of the explosion-proof shell of the electrolytic capacitor according to claim 1, the electrolytic capacitor comprises a sealing gasket (5), the sealing gasket (5) is positioned in the shell (1), a capacitor core (6) is fixedly connected to the top of the sealing gasket (5), two pins (4) are fixedly connected to the bottom of the sealing gasket (5) in a penetrating manner, one end of each pin (4) extends into the capacitor core (6), and the bottom of the sealing gasket (5) is in contact with the flanging (8);
the outer wall of the shell (1) is sleeved with an outer film (3), and the outer film (3) is provided with a capacitance information mark and a positive and negative electrode area mark.
5. Electrolytic capacitor according to claim 4, characterized in that the gasket (5) is fixed in the housing (1) by means of a squeeze (7).
6. Electrolytic capacitor according to claim 4, characterized in that the outer film (3) is provided with a corner wrapping (9) at both ends, and the outer film (3) is fixedly sleeved on the casing (1) through the corner wrapping (9).
7. The electrolytic capacitor according to claim 4, wherein the gasket (5) is made of butyl rubber.
8. Electrolytic capacitor according to any one of claims 5 to 7, characterized in that the pins (4) are of cold tin-plated material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320211234.5U CN219873171U (en) | 2023-02-14 | 2023-02-14 | Explosion-proof shell of electrolytic capacitor and electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320211234.5U CN219873171U (en) | 2023-02-14 | 2023-02-14 | Explosion-proof shell of electrolytic capacitor and electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873171U true CN219873171U (en) | 2023-10-20 |
Family
ID=88324441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320211234.5U Active CN219873171U (en) | 2023-02-14 | 2023-02-14 | Explosion-proof shell of electrolytic capacitor and electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873171U (en) |
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2023
- 2023-02-14 CN CN202320211234.5U patent/CN219873171U/en active Active
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