CN214043428U - Aluminum electrolytic capacitor resistant to large ripple current - Google Patents
Aluminum electrolytic capacitor resistant to large ripple current Download PDFInfo
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- CN214043428U CN214043428U CN202120153546.6U CN202120153546U CN214043428U CN 214043428 U CN214043428 U CN 214043428U CN 202120153546 U CN202120153546 U CN 202120153546U CN 214043428 U CN214043428 U CN 214043428U
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Abstract
The utility model discloses a large ripple current resistant aluminum electrolytic capacitor, which comprises a crust, one side of the crust is provided with a white edge, the inner central position of the crust is connected with an aluminum shell, the outer bottom surface of the crust is provided with a heat dissipation seat, the position of the bottom of the heat dissipation seat near one side is welded with an anode foil guide strip, the position of the bottom of the heat dissipation seat near the other side is welded with a cathode foil guide strip, the outer sides of the bottoms of the anode foil guide strip and the cathode foil guide strip are both provided with a sheath, the inner bottom surface of the aluminum shell is equidistantly provided with a plurality of heat conducting fins, and the bottom surfaces of the heat conducting fins are provided with heat dissipation copper strips; an aluminium electrolytic capacitor of nai big ripple electric current, effectively strengthened aluminium electrolytic capacitor's passive heat-sinking capability to improve aluminium electrolytic capacitor and to ripple electric current's the limit of bearing, reduced the inside temperature of aluminium electrolytic capacitor during operation, prolonged aluminium electrolytic capacitor's life.
Description
Technical Field
The utility model relates to the field of electrolytic capacitors, in particular to an aluminum electrolytic capacitor resistant to large ripple current.
Background
The aluminum electrolytic capacitor has larger capacitance than other electrolytic capacitors, is low in price, is easy to produce in large scale, is mostly used in common industrial equipment, and is suitable for being used for power supply filtering or electric components positioned in a low-frequency circuit.
The existing aluminum electrolytic capacitor is inconvenient to perform tin soldering and welding, the existing foil guide strip is mostly a cylinder, so that a user is inconvenient to perform cutting and accumulation of tin-based alloy, more time is consumed for cutting and dotting tin, and the installation efficiency of the aluminum electrolytic capacitor is influenced; secondly, the existing aluminum electrolytic capacitor lacks a good heat dissipation structure, and when the capacitor bears a large ripple current, the internal temperature of the capacitor is too high, so that the loss of the capacitor is increased, and the service life of the capacitor is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an aluminum electrolytic capacitor of nai big ripple current, can effectively solve the current aluminum electrolytic capacitor in the background art and be not convenient for carry out the soldering welding, current foil strip that leads is mostly the cylinder, the accumulation of the difficult user of service cutting and tin base alloy, need consume more time to cut and some tin, influence the installation effectiveness of aluminum electrolytic capacitor; secondly, current aluminum electrolytic capacitor lacks good heat radiation structure, and when bearing great ripple current, the inside high temperature of condenser can lead to the capacitor loss to increase, shortens capacitor life's technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the aluminum electrolytic capacitor resistant to the large ripple current comprises a sheath, wherein a white edge is arranged on one side of the sheath, an aluminum shell is connected to the inner center of the sheath, a heat dissipation seat is arranged on the bottom surface of the outer side of the sheath, an anode foil guide strip is welded at the position, close to one side, of the bottom of the heat dissipation seat, a cathode foil guide strip is welded at the position, close to the other side, of the bottom of the heat dissipation seat, and sheaths are arranged on the outer sides of the bottoms of the anode foil guide strip and the cathode foil guide strip;
the bottom surface of the interior of the aluminum shell is equidistantly provided with a plurality of heat conducting fins, the bottom surfaces of the heat conducting fins are provided with heat radiating copper strips, the top surface of the interior of the heat radiating seat is provided with a heat conducting pad, and the positions of the interior of the heat radiating seat, which are close to the outer sides of the positive electrode foil conducting strip and the negative electrode foil conducting strip, are provided with cylindrical pads;
the position that the outside of anodal foil strip and negative pole foil strip is close to the bottom leans on one side equidistance to seted up a plurality of tin-soldering mouth, the position that the outside of anodal foil strip and negative pole foil strip is close to the bottom leans on the opposite side equidistance to have seted up a plurality of and cuts cut groove, the inboard that cuts cut groove is provided with the groove.
As a further aspect of the utility model, the inboard outside fixed connection of crust and aluminum hull, the both sides on white limit and the inboard fixed connection of crust, and just above the bottom on white limit is close to the top of negative pole foil strip.
As a further scheme of the utility model, bottom fixed connection is leaned on with the inside of aluminum hull to the top of anodal foil strip and negative pole foil strip, and runs through the inside of radiating seat, the top surface of radiating seat and the bottom surface fixed connection of aluminum hull.
As a further aspect of the utility model, the top surface size of heat dissipation copper bar is the same with the bottom surface size of conducting strip, and the end of heat dissipation copper bar all is located the outside of radiating seat, and the bottom surface of conducting strip all is located the outside of aluminum hull.
As a further aspect of the utility model, heat conduction pad and cylinder pad all with the inner wall fixed connection of radiating seat, and the bottom surface of cylinder pad is located the outside bottom surface of radiating seat, and the outside length of negative pole foil strip is less than the outside length of positive pole foil strip.
As a further proposal of the utility model, the inboard size of tin-soldering mouth is greater than the inboard size of cutting cut groove, and the sheath is plastic insulating material, and the inboard size of sheath is the same with the bottom size of anodal foil strip of leading.
Compared with the prior art, the utility model discloses following beneficial effect has: in the utility model, the heat dissipation seat is matched with the heat conducting fins, the aluminum electrolytic capacitor bears ripple current when in work, the higher the borne ripple current is, the more the heat generated in the aluminum shell is, the heat is transferred to the bottom surface of the aluminum shell, the anode foil guiding strip and the cathode foil guiding strip, partial heat on the bottom surface of the aluminum shell is transferred to the outer side of the aluminum shell through a plurality of heat conducting fins, partial heat is transferred to the outer side of the heat dissipation seat through the heat conducting fins and the heat conducting pad which are matched with the heat dissipation copper strip, partial heat on the outer sides of the anode foil guiding strip and the cathode foil guiding strip is transferred to the inner part of the cylindrical pad, and the cylindrical pad transfers partial heat to the bottom surface of the outer side of the heat dissipation seat, thereby effectively enhancing the passive heat dissipation capability of the aluminum electrolytic capacitor, thereby improving the bearing limit of the aluminum electrolytic capacitor to ripple current, reducing the internal temperature of the aluminum electrolytic capacitor during working and prolonging the service life of the aluminum electrolytic capacitor;
by arranging the cutting groove to match with the groove, when a user sets the aluminum electrolytic capacitor, the bottoms of the positive electrode foil guide strip and the negative electrode foil guide strip need to be soldered on the circuit board, the bottoms of the positive electrode foil guide strip and the negative electrode foil guide strip are taken down by the sheath, then the bottom ends of the anode foil guide strip and the cathode foil guide strip penetrate through corresponding welding holes on the circuit board, the proper length is confirmed, a cutting tool is used for cutting in a proper cutting groove, the groove enables the cutting tool to cut off the anode foil guide strip and the cathode foil guide strip more easily, then a proper amount of tin-based alloy is arranged in a proper tin soldering port, the positive electrode foil guide strip and the negative electrode foil guide strip are welded on the circuit board by matching the electric soldering iron with the tin-based alloy, so that the tin-based alloy is easier to accumulate at the bottom ends of the positive electrode foil guide strip and the negative electrode foil guide strip, thereby facilitating the welding of the aluminum electrolytic capacitor by the user and improving the installation efficiency of the aluminum electrolytic capacitor by the user.
Drawings
FIG. 1 is a schematic view of the overall structure of an aluminum electrolytic capacitor resistant to large ripple current;
FIG. 2 is a front sectional view of the junction between the heat dissipation base and the bottom end of the aluminum case of the aluminum electrolytic capacitor resistant to large ripple current;
fig. 3 is a front cross-sectional view of the positive electrode foil-guiding strip and the negative electrode foil-guiding strip of the aluminum electrolytic capacitor resistant to large ripple current.
In the figure: 1. a skin; 2. white edges; 3. an aluminum shell; 4. a heat dissipation base; 5. a positive electrode foil guide strip; 6. a negative electrode foil guide strip; 7. a sheath; 8. a heat conductive sheet; 9. a thermally conductive pad; 10. a heat-dissipating copper bar; 11. a cylindrical pad; 12. tin craters; 13. cutting the groove; 14. and (4) beveling.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-3, an aluminum electrolytic capacitor resistant to large ripple current comprises a sheath 1, a white edge 2 is arranged on one side of the sheath 1, an aluminum shell 3 is connected to the center position inside the sheath 1, a heat dissipation seat 4 is arranged on the bottom surface of the outer side of the sheath 1, a positive foil guide strip 5 is welded on the position, close to one side, of the bottom of the heat dissipation seat 4, a negative foil guide strip 6 is welded on the position, close to the other side, of the bottom of the heat dissipation seat 4, and sheaths 7 are arranged on the outer sides of the bottoms of the positive foil guide strip 5 and the negative foil guide strip 6;
a plurality of heat conducting fins 8 are equidistantly arranged on the inner bottom surface of the aluminum shell 3, heat radiating copper strips 10 are arranged on the bottom surfaces of the heat conducting fins 8, a heat conducting pad 9 is arranged on the inner top surface of the heat radiating seat 4, and cylindrical pads 11 are arranged in the heat radiating seat 4 and close to the outer sides of the anode foil guiding strip 5 and the cathode foil guiding strip 6;
the position that the outside of anodal foil strip 5 and negative pole foil strip 6 is close to the bottom leans on one side equidistance to seted up a plurality of soldering mouth 12, and the position that the outside of anodal foil strip 5 and negative pole foil strip 6 is close to the bottom leans on the opposite side equidistance to seted up a plurality of cutting groove 13, and the inboard of cutting groove 13 is provided with groove 14.
The inboard of crust 1 and the outside fixed connection of aluminum hull 3, the both sides on white limit 2 and the inboard fixed connection of crust 1, and just above the top that the bottom on white limit 2 is close to negative pole guide foil strip 6, make things convenient for the user of service to discern positive pole guide foil strip 5 and negative pole guide foil strip 6 after the installation.
The top of positive pole foil strip 5 and negative pole foil strip 6 leans on bottom fixed connection with the inside of aluminum hull 3, and runs through the inside of radiating seat 4, and the top surface of radiating seat 4 and the bottom surface fixed connection of aluminum hull 3 for the inside heat of aluminum hull 3 effectively transmits to the top of radiating seat 4 inboard.
The top surface size of heat dissipation copper bar 10 is the same with the bottom surface size of conducting strip 8, and the end of heat dissipation copper bar 10 all is located the outside of radiating seat 4, and the bottom surface of conducting strip 8 all is located the outside of aluminum hull 3 for heat dissipation copper bar 10 cooperates conducting strip 8 with the inside heat transfer of aluminum hull 3 to the radiating seat 4 outside.
The inboard size of tin-soldering mouth 12 is greater than the inboard size of cutting groove 13, and sheath 7 is the plastic insulation material, and the inboard size of sheath 7 is the same with the bottom size of anodal foil strip 5, and sheath 7 effectively protects anodal foil strip 5 and negative pole foil strip 6, avoids anodal foil strip 5 and negative pole foil strip 6 to buckle.
It should be noted that, the utility model relates to an aluminum electrolytic capacitor with high ripple current resistance, when in use, firstly, the user takes down the bottom of the anode foil strip 5 and the bottom of the cathode foil strip 6 with the sheath 7, then the bottom of the anode foil strip 5 and the bottom of the cathode foil strip 6 are passed through the corresponding welding holes on the circuit board, confirm the proper length, use the cutting tool to cut in the proper cutting groove 13, the bevel 14 makes the cutting tool more easily cut off the anode foil strip 5 and the cathode foil strip 6, then set a proper amount of tin-based alloy in the proper tin welding port 12, weld the anode foil strip 5 and the cathode foil strip 6 on the circuit board by matching with the tin-based alloy, the user confirms the positions of the anode foil strip 5 and the cathode foil strip 6 by matching with the white edge 2 with the sheath 1 of the electric iron, the ripple current of the aluminum electrolytic capacitor is carried, the heat is generated inside the aluminum shell 3, heat transfer to the bottom surface of aluminum hull 3, anodal foil strip 5 and negative pole foil strip 6 of leading, the partial heat of 3 bottom surfaces of aluminum hull transmits to its outside through a plurality of conducting strip 8, partial heat passes through conducting strip 8 and the outside of heat dissipation copper bar 10 transmission to radiating seat 4 of 9 cooperation heat conduction pads, anodal foil strip 5 and the partial heat transmission to the cylinder pad 11 inside of the 6 outsides of negative pole foil strip are led to the positive pole, cylinder pad 11 is again with partial heat transmission to the outside bottom surface of radiating seat 4.
The utility model discloses a set up heat dissipation seat 4 cooperation conducting strip 8, aluminum electrolytic capacitor bears ripple current when the work, the ripple current that bears is higher, the heat that produces inside aluminum hull 3 is more, heat transfer to the bottom surface of aluminum hull 3, anodal foil strip 5 and negative pole foil strip 6, part heat of aluminum hull 3 bottom surface is passed through a plurality of conducting strip 8 and is transmitted to its outside, part heat is transmitted to the outside of heat dissipation seat 4 through conducting strip 8 and heat conduction pad 9 cooperation heat dissipation copper bar 10, the part heat transmission outside anodal foil strip 5 and negative pole foil strip 6 is to inside cylindrical pad 11, cylindrical pad 11 again with part heat transmission to the outside bottom surface of heat dissipation seat 4, aluminum electrolytic capacitor's passive heat-sinking capability has effectively been strengthened, thereby improved aluminum electrolytic capacitor to the bearing limit of ripple current, the inside temperature when aluminum electrolytic capacitor works has been reduced, the service life of the aluminum electrolytic capacitor is prolonged; by arranging the cutting groove 13 to be matched with the groove 14, when a user sets the aluminum electrolytic capacitor, the bottoms of the anode foil guide strip 5 and the cathode foil guide strip 6 need to be soldered on a circuit board, the sheath 7 is taken down at first to take the bottoms of the anode foil guide strip 5 and the cathode foil guide strip 6 down, then the bottoms of the anode foil guide strip 5 and the cathode foil guide strip 6 penetrate through corresponding soldering holes on the circuit board to confirm proper length, a cutting tool is used for cutting in the proper cutting groove 13, the groove 14 enables the cutting tool to easily cut off the anode foil guide strip 5 and the cathode foil guide strip 6, then a proper amount of tin-based alloy is arranged in a proper soldering port 12, the anode foil guide strip 5 and the cathode foil guide strip 6 are soldered on the circuit board by matching of an electric soldering iron with the tin-based alloy, so that the tin-based alloy is easily accumulated at the bottoms of the anode foil guide strip 5 and the cathode foil guide strip 6, thereby facilitating the user to solder the aluminum electrolytic capacitor, the installation efficiency of the aluminum electrolytic capacitor by the user is improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An aluminum electrolytic capacitor resistant to large ripple current is characterized in that: the aluminum-foil-conducting sheath comprises a sheath (1), a white edge (2) is arranged on one side of the sheath (1), an aluminum shell (3) is connected to the inner center of the sheath (1), a heat radiating seat (4) is arranged on the bottom surface of the outer side of the sheath (1), an anode foil-conducting strip (5) is welded on the position, close to one side, of the bottom of the heat radiating seat (4), a cathode foil-conducting strip (6) is welded on the position, close to the other side, of the bottom of the heat radiating seat (4), and sheaths (7) are arranged on the outer sides of the bottoms of the anode foil-conducting strip (5) and the cathode foil-conducting strip (6);
a plurality of heat conducting fins (8) are equidistantly arranged on the inner bottom surface of the aluminum shell (3), heat radiating copper strips (10) are arranged on the bottom surfaces of the heat conducting fins (8), a heat conducting pad (9) is arranged on the inner top surface of the heat radiating seat (4), and cylindrical pads (11) are arranged in the heat radiating seat (4) and are close to the outer sides of the positive electrode foil guiding strip (5) and the negative electrode foil guiding strip (6);
anodal foil strip (5) lean on one side equidistance with the position that the outside of negative pole foil strip (6) is close to the bottom to have seted up a plurality of tin-soldering mouth (12), position that the outside of anodal foil strip (5) and negative pole foil strip (6) is close to the bottom leans on the opposite side equidistance to have seted up a plurality of cutting groove (13), the inboard of cutting groove (13) is provided with groove (14).
2. The aluminum electrolytic capacitor resistant to large ripple current according to claim 1, wherein: the inside of crust (1) and the outside fixed connection of aluminum hull (3), the both sides of white limit (2) and the inboard fixed connection of crust (1), and just above the top that the bottom of white limit (2) is close to negative pole foil strip (6).
3. The aluminum electrolytic capacitor resistant to large ripple current according to claim 1, wherein: the top of the positive electrode foil guide strip (5) and the negative electrode foil guide strip (6) is fixedly connected with the inner part of the aluminum shell (3) by the bottom end, the top of the heat dissipation seat (4) penetrates through the inner part of the heat dissipation seat (4), and the top of the heat dissipation seat (4) is fixedly connected with the bottom of the aluminum shell (3).
4. The aluminum electrolytic capacitor resistant to large ripple current according to claim 1, wherein: the size of the top surface of the heat dissipation copper bar (10) is the same as that of the bottom surface of the heat conducting fin (8), the tail end of the heat dissipation copper bar (10) is located on the outer side of the heat dissipation seat (4), and the bottom surface of the heat conducting fin (8) is located on the outer side of the aluminum shell (3).
5. The aluminum electrolytic capacitor resistant to large ripple current according to claim 1, wherein: the heat conducting pad (9) and the cylindrical pad (11) are fixedly connected with the inner wall of the heat radiating seat (4), the bottom surface of the cylindrical pad (11) is located on the bottom surface of the outer side of the heat radiating seat (4), and the length of the outer side of the negative electrode foil guiding strip (6) is smaller than that of the outer side of the positive electrode foil guiding strip (5).
6. The aluminum electrolytic capacitor resistant to large ripple current according to claim 1, wherein: the inside size of tin-soldering mouth (12) is greater than the inside size of cutting groove (13), and sheath (7) are plastic insulating material, and the inside size of sheath (7) is the same with the bottom size of anodal foil strip (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120153546.6U CN214043428U (en) | 2021-01-20 | 2021-01-20 | Aluminum electrolytic capacitor resistant to large ripple current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120153546.6U CN214043428U (en) | 2021-01-20 | 2021-01-20 | Aluminum electrolytic capacitor resistant to large ripple current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214043428U true CN214043428U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120153546.6U Active CN214043428U (en) | 2021-01-20 | 2021-01-20 | Aluminum electrolytic capacitor resistant to large ripple current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214043428U (en) |
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2021
- 2021-01-20 CN CN202120153546.6U patent/CN214043428U/en active Active
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