CN210403522U - Aluminum electrolytic capacitor capable of detecting internal temperature - Google Patents
Aluminum electrolytic capacitor capable of detecting internal temperature Download PDFInfo
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- CN210403522U CN210403522U CN201921242445.5U CN201921242445U CN210403522U CN 210403522 U CN210403522 U CN 210403522U CN 201921242445 U CN201921242445 U CN 201921242445U CN 210403522 U CN210403522 U CN 210403522U
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Abstract
An aluminum electrolytic capacitor capable of detecting internal temperature comprises a cover plate, a core package and a shell, wherein the core package is sealed in the shell through the cover plate; the polar foil strips on the core bag are welded or riveted on the lead pins on the cover plate; a hollow column is arranged at the central position of the cover plate, a thermocouple probe is sealed in the hollow column, and the hollow column and the cover plate are arranged in a sealing way; the hollow columns are inserted into the gaps of the core package winding cores. The air tightness of the aluminum electrolytic capacitor capable of detecting the internal temperature can be ensured, and the aluminum electrolytic capacitor is suitable for batch production.
Description
Technical Field
The utility model relates to an aluminum electrolytic capacitor especially relates to an ox horn capacitor aluminum electrolytic capacitor, and this kind of condenser can detect the inside temperature of condenser.
Background
The aluminum electrolytic capacitor can generate heat in the electrifying process due to internal resistance, so that the temperature of the capacitor body is increased, and the temperature is a key factor influencing the service life of the aluminum electrolytic capacitor. Therefore, if a method is provided, the internal temperature of the aluminum electrolytic capacitor can be monitored in real time and data can be acquired and analyzed, and the safety and reliability of the whole electronic product can be improved.
The existing material and process are difficult to produce aluminum electrolytic capacitors capable of monitoring the internal temperature in real time in batch, generally, a temperature sensing thermocouple is inserted after an aluminum shell is drilled, and a hole on the aluminum shell is sealed by glue to prevent liquid leakage, for example, patent 201610510211.9, a capacitor for detection. This method has several fatal shortcomings: firstly, the batch production and the manufacture are very difficult, and secondly, the glue is sealed and is easy to leak.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the deficiencies of the prior art, and to provide an aluminum electrolytic capacitor and a preparation method thereof, which can realize batch production and can not easily cause leakage and can detect the internal temperature.
In order to solve the technical problem, the utility model provides a technical scheme does: an aluminum electrolytic capacitor capable of detecting internal temperature comprises a cover plate, a core package and a shell, wherein the core package is sealed in the shell through the cover plate; the polar foil strips on the core bag are welded or riveted on the lead pins on the cover plate; a hollow column is arranged at the central position of the cover plate, a thermocouple probe is sealed in the hollow column, and the hollow column and the cover plate are arranged in a sealing manner; the hollow column is inserted into the gap of the core package core. The utility model discloses in, hollow post need adopt the material preparation that the heat conductivity is good to form, and the optimum adopts aluminium system material preparation to form. The thermocouple is sealed in hollow post, and hollow post inserts in the space that core package rolled up the core, and the thermocouple just can detect inside the core package like this, also is the temperature of rolling up the core, carries out real-time supervision and data acquisition analysis to the inside temperature of condenser and provides the data basis.
Preferably, the open end of the hollow column is sealed by a plastic plug, two leads are arranged on the plastic plug, and the positive and negative interfaces of the thermocouple probe are respectively welded on the two leads.
Preferably, after the hollow column penetrates through the cover plate, the hollow column is tightly pressed through washer matching so that the hollow column is hermetically connected with the cover plate. The connection mode of the hollow column on the cover plate is the same as that of the lead pin on the cover plate, and the bottom of the cover plate is hermetically connected with the cover plate through the washer.
In the above aluminum electrolytic capacitor capable of detecting an internal temperature, preferably, the terminal pin includes a lead terminal, an aluminum rivet and a washer; one end of the aluminum rivet is welded or riveted at the bottom of the lead terminal, the other end of the aluminum rivet penetrates through the cover plate and then is connected with the washer, and the aluminum rivet and the cover plate are tightly connected through the washer in a sealing mode.
In the above aluminum electrolytic capacitor capable of detecting an internal temperature, preferably, the cover plate includes a resin plate and a rubber layer; the rubber layer is bonded to a resin plate which is pressed against the corset, and the top end of the housing is crimped over the rubber layer.
In the above aluminum electrolytic capacitor capable of detecting an internal temperature, preferably, the rubber layer extrudes both the aluminum rivet and the hollow column.
The utility model discloses in, the connection of hollow post on the apron is the same with the connection structure of pin on the apron, that is to say the utility model discloses do not destroy the structure of shell, set up hollow post on the apron to adopt the connected mode the same with the pin, its leakproofness can obtain guaranteeing, phenomenon such as weeping can not appear under the normal conditions. And meanwhile, the hollow columns arranged on the cover plate are also suitable for batch production.
A method for preparing an aluminum electrolytic capacitor capable of detecting internal temperature comprises the following steps,
1) sealing and fixing the terminal pins on the cover plate;
2) respectively welding the positive electrode and the negative electrode of the thermocouple on the two leads on the plastic rubber plug;
3) after the thermocouple is inserted into the hollow column, inserting the plastic plug into the hollow column to seal the thermocouple in the hollow column;
4) penetrating the hollow column in the step 3) through a cover plate, and enabling the hollow column and the cover plate to be in sealing connection through washer matching and pressing;
5) inserting the hollow column into the gap of the core package winding core; respectively welding or riveting the foil strips on the core bag on the lead pins;
6) the core bag and the cover plate in the step 5) are arranged in the shell and then are waisted, and the position of the cover plate is higher than the waisted position in the waisting process; and after the waist of the shell is bound, pressing the cover plate downwards to be pressed against the waist, and crimping and sealing the shell.
In the above method for manufacturing an aluminum electrolytic capacitor capable of detecting an internal temperature, preferably, the terminal pin includes a lead terminal, an aluminum rivet and a washer; one end of the aluminum rivet is welded or riveted at the bottom of the lead terminal, the other end of the aluminum rivet penetrates through the cover plate and then is connected with the washer, and the aluminum rivet and the cover plate are tightly connected through the washer in a sealing mode.
Compared with the prior art, the utility model has the advantages of: the air tightness of the aluminum electrolytic capacitor capable of detecting the internal temperature can be ensured, and the aluminum electrolytic capacitor is suitable for batch production.
Drawings
Fig. 1 is a schematic structural view of an aluminum electrolytic capacitor capable of detecting an internal temperature in example 1.
Fig. 2 is a schematic mechanism diagram of the cover plate in embodiment 1.
Fig. 3 is a schematic sectional view of the cover plate in embodiment 1.
Description of the figures
1. A cover plate; 2. a housing; 3. a hollow aluminum column; 4. washer; 5. a terminal pin; 51. a lead terminal; 52. an aluminum rivet; 6. a resin plate; 7. a rubber layer; 8. a lead post; 9. a thermocouple; 10. a plastic plug.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Example 1
An aluminum electrolytic capacitor capable of detecting internal temperature as shown in fig. 1 comprises a cover plate 1, a core package and a shell 2, wherein the core package is sealed in the shell 2 through the cover plate 1; the polar foil strip on the core bag is riveted on the lead pin 5 on the cover plate 1; a hollow aluminum column 3 is arranged at the central position of the cover plate 1, a thermocouple 9 probe is sealed in the hollow aluminum column 3, and the hollow aluminum column 3 and the cover plate 1 are arranged in a sealing way; the hollow aluminum posts 3 are inserted into the void of the core wrap core. In this embodiment, an insulating film is disposed on the outer surface of the hollow aluminum pillar 3 to prevent the hollow aluminum pillar from being connected to the positive electrode foil or the negative electrode foil of the core package.
As shown in fig. 2 and 3, in the present embodiment, the open end of the hollow aluminum column 3 is sealed by a plastic plug 10, and two lead columns 8 are disposed on the plastic plug 10, and the positive and negative interfaces of the thermocouple 9 probe are respectively welded on the two lead columns 8. The hollow aluminum column 3 penetrates through the cover plate 1 and then is tightly pressed by the washer 4 in a matching way, so that the hollow aluminum column 3 is hermetically connected with the cover plate 1. When the plug is used, the lead posts can be matched with the slotted holes on the circuit board, and the lead posts are directly inserted into the slotted holes to complete power connection. The lead post may also be formed in other ways, if necessary, such as solder bumps
As shown in fig. 3, in the present embodiment, the terminal pin 5 includes a lead terminal 51, an aluminum rivet 52, and a washer 4; one end of the aluminum rivet 52 is riveted on the bottom of the lead terminal 51, the other end of the aluminum rivet is connected with the washer 4 after penetrating through the cover plate 1, and the aluminum rivet 52 is hermetically connected with the cover plate 1 through the matching and pressing of the washer 4.
In the present embodiment, the cap plate 1 includes a resin plate 6 and a rubber layer 7; the rubber layer 7 is bonded to the resin plate 6, the resin plate 6 is pressed against the corset, and the top end of the housing 2 is crimped over the rubber layer 7. The rubber layer 7 forms an extrusion to both the aluminum rivet 52 and the hollow aluminum column 3.
The method for preparing the aluminum electrolytic capacitor capable of detecting the internal temperature comprises the following steps,
1) fixing the lead pins 5 on the cover plate 1 in a sealing way;
2) respectively welding the anode and the cathode of the thermocouple 9 on two leads on the plastic rubber plug 10;
3) after the thermocouple 9 is inserted into the hollow aluminum column 3, inserting the plastic plug 10 into the hollow aluminum column 3 to seal the thermocouple 9 in the hollow aluminum column 3;
4) penetrating the hollow aluminum column 3 obtained in the step 3) through the cover plate 1, and enabling the hollow aluminum column 3 and the cover plate 1 to be in sealing connection through matching and pressing of the washer 4;
5) inserting the hollow aluminum column 3 into the gap of the core bag winding core; respectively welding or riveting the foil strips on the core bag on the lead pins 5;
6) the core bag and the cover plate 1 in the step 5) are put into the shell and then are waisted, and the position of the cover plate 1 is higher than the waisted position in the waisting process; after the waist binding of the shell 2 is finished, the cover plate 1 is pressed down to be pressed against the waist binding, and the shell 2 is curled and sealed.
The aluminum electrolytic capacitor capable of detecting the internal temperature of the embodiment can ensure the air tightness and is suitable for batch production.
Claims (6)
1. An aluminum electrolytic capacitor capable of detecting internal temperature is characterized in that: the core package is sealed in the shell through the cover plate; the polar foil strips on the core bag are welded or riveted on the lead pins on the cover plate; a hollow column is arranged at the central position of the cover plate, a thermocouple probe is sealed in the hollow column, and the hollow column and the cover plate are arranged in a sealing manner; the hollow column is inserted into the gap of the core package core.
2. The aluminum electrolytic capacitor capable of detecting internal temperature according to claim 1, wherein: the open end of the hollow column is sealed by a plastic plug, two leads are arranged on the plastic plug, and the positive electrode interface and the negative electrode interface of the thermocouple probe are respectively welded on the two leads.
3. The aluminum electrolytic capacitor capable of detecting internal temperature according to claim 1, wherein: the hollow column penetrates through the cover plate and then is tightly pressed through washer matching, so that the hollow column is hermetically connected with the cover plate.
4. The aluminum electrolytic capacitor capable of detecting internal temperature according to claim 1, wherein: the lead pin comprises a lead terminal, an aluminum rivet and a washer; one end of the aluminum rivet is welded or riveted at the bottom of the lead terminal, the other end of the aluminum rivet penetrates through the cover plate and then is connected with the washer, and the aluminum rivet and the cover plate are tightly pressed through the washer in a matched mode to be in sealing connection.
5. The aluminum electrolytic capacitor capable of detecting internal temperature according to any one of claims 1 to 4, wherein: the cover plate comprises a resin plate and a rubber layer; the rubber layer is bonded to a resin plate which is pressed against the corset, and the top end of the housing is crimped over the rubber layer.
6. The aluminum electrolytic capacitor capable of detecting internal temperature according to claim 5, wherein: the rubber layer extrudes the aluminum rivet and the hollow column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921242445.5U CN210403522U (en) | 2019-08-02 | 2019-08-02 | Aluminum electrolytic capacitor capable of detecting internal temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921242445.5U CN210403522U (en) | 2019-08-02 | 2019-08-02 | Aluminum electrolytic capacitor capable of detecting internal temperature |
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| CN210403522U true CN210403522U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428974A (en) * | 2019-08-02 | 2019-11-08 | 湖南艾华集团股份有限公司 | A kind of aluminium electrolutic capacitor and preparation method thereof of detectable internal temperature |
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2019
- 2019-08-02 CN CN201921242445.5U patent/CN210403522U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428974A (en) * | 2019-08-02 | 2019-11-08 | 湖南艾华集团股份有限公司 | A kind of aluminium electrolutic capacitor and preparation method thereof of detectable internal temperature |
| CN110428974B (en) * | 2019-08-02 | 2024-09-06 | 湖南艾华集团股份有限公司 | Aluminum electrolytic capacitor capable of detecting internal temperature and preparation method thereof |
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