CN113205963A

CN113205963A - Stable electrolytic capacitor

Info

Publication number: CN113205963A
Application number: CN202110569534.6A
Authority: CN
Inventors: 杨建华
Original assignee: Nantong Huayu Electronic Co ltd
Current assignee: Nantong Huayu Electronic Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-08-03

Abstract

The invention discloses a stable electrolytic capacitor, which relates to the technical field of capacitors and comprises a capacitor body, an outer terminal, an inner contact column, a sealing rubber cover, an aluminum shell, an inner part and a thermal induction layer, wherein the outer terminal is fixedly connected above the capacitor body, the inner contact column is fixedly connected below the outer terminal, the bottom of the inner contact column extends into the aluminum shell, the sealing rubber cover is arranged at the top of the capacitor body, the aluminum shell is fixedly connected below the sealing rubber cover, and the thermal induction layer is arranged inside the aluminum shell. According to the invention, through the combination of the thermal induction layer and the thermal expansion body, the thermal expansion body absorbs internal heat and continuously expands, the absorbed heat is transmitted to the aluminum shell for heat dissipation treatment, so that the temperature is favorably reduced, the flexible protection pad can protect the limiting rubber column from excessive abrasion and extrusion deformation in the process of pressure, and the mechanical stability of the capacitor is enhanced.

Description

Stable electrolytic capacitor

Technical Field

The invention relates to a capacitor, relates to the technical field of capacitors, and particularly relates to a stable electrolytic capacitor.

Background

A capacitor is a commonly used electronic component, which is composed of a capacitor core, lead wires, and a case, the capacitor core is composed of a plurality of capacitor elements connected in series and parallel, and an electrolytic capacitor having a small size, a large electrostatic capacitance, and a low Equivalent Series Resistance (ESR) is considered to be promising. For example, an electrolytic capacitor is known, which comprises an anode body having a dielectric layer formed thereon, a solid electrolyte layer formed to cover at least a portion of the dielectric layer, and an electrolyte, wherein a conductive polymer is used as the solid electrolyte layer, a capacitor core with a higher voltage, which is commonly used at present, is mainly formed by connecting a plurality of capacitor elements in series with a lead outside, and the existing capacitor has a large self-inductance due to the lead used for connecting the capacitor in series in its structure, which limits the frequency and amplitude of a surge current, and has a low volume utilization ratio due to problems such as insulation and current capacity when the capacitor elements are connected in series outside, and therefore, in some scenarios where the capacitor is specifically required to have a small self-inductance, such as a high voltage, a small volume, a small self-inductance, a large current capacity, and a high instantaneous peak power, the capacitor, it is a device to hold electric charge, with the development of current society science and technology, the electronic information technology is advanced day by day, the speed of the digital electronic product is also faster and faster, with the continuous increase of the electronic product sales such as computer, cell-phone, etc., the development of the capacitor industry is also faster and faster, in the direct current circuit, because the capacitor is equipped with the insulating material inside, so the capacitor is non-conductive after the circular telegram, when the voltage increases and the breakdown voltage of the capacitor is the same, the capacitor is broken down, the capacitor begins to conduct, in the alternating current circuit, because the direction of the electric current changes with certain relation with time, form the electric field that changes between the base plate of the capacitor, therefore the capacitor is conductive this kind of existing capacitor too, can't meet the use demand, therefore there is an urgent need for a stable type electrolytic capacitor to solve these problems in the market. The following problems exist in the prior art:

1. in order to ensure the sealing performance and eliminate air of the existing electrolytic capacitor, epoxy resin is filled in a gap between a core and a shell, although the method can ensure the sealing performance and the stability of a lead contact, the heat of the core cannot be dissipated, the core does not have an expanded space, and the core is easy to burn out and even explode;

2. when the aluminum housing is subjected to external pressure, the aluminum housing does not have self-protection capability, so that the capacitor is easily deformed, the use efficiency is low, and the safety performance is poor.

Disclosure of Invention

The invention provides a stable electrolytic capacitor, which has the advantages that one purpose is to dissipate heat, the temperature of the capacitor is continuously increased when the capacitor works at high strength, and the capacitor can be burnt out or exploded due to the fact that heat cannot be dissipated; the other purpose is to solve the stability problem of the capacitance, and the effect of force unloading to external force can be achieved through the combination of the heat conduction layer and the buffer layer, and meanwhile, the temperature is kept in a safe range, so that the stability effect is achieved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a stable form electrolytic capacitor, includes capacitor body, outer terminal, interior contact post, sealed gluey lid, aluminum hull, inside and thermal induction layer, capacitor body's top fixedly connected with outer terminal, contact post in the below fixedly connected with of outer terminal, the bottom of interior contact post extend with the inside of aluminum hull, capacitor body's top is provided with sealed gluey lid, the below fixedly connected with aluminum hull of sealed gluey lid, the inside of aluminum hull is provided with the thermal induction layer, the inside on thermal induction layer is provided with inside capacitance device.

The technical scheme of the invention is further improved as follows: thermal expansion bodies are uniformly distributed in the thermal induction layer, and one end of each thermal expansion body is fixedly connected with an aluminum shell.

Adopt above-mentioned technical scheme, the combination of thermal induction layer and the thermal expansion body in this scheme, through the absorption of thermal expansion body to inside heat, can constantly expand, and the heat after the absorption can be sent to the aluminum hull and carry out the heat dissipation and handle, is favorable to reducing the temperature.

The technical scheme of the invention is further improved as follows: the inside of aluminum hull is provided with buffering inner chamber, the outside fixed mounting of buffering inner chamber has the rubber buffer board, the inboard movable mounting of rubber buffer board has U type buffering rubber piece.

Adopt above-mentioned technical scheme, the combination of buffering inner chamber, rubber buffer board and U type cushion rubber piece in this scheme, through the inside rubber buffer board that sets up of buffering inner chamber, can effectively cushion ambient pressure, protect inside, the power is unloaded to rethread U type cushion rubber piece, plays the secondary protection.

The technical scheme of the invention is further improved as follows: the middle part of the inner side of the U-shaped buffer rubber block is fixedly provided with a limiting rubber column, and the front end of the limiting rubber column is fixedly connected with a flexible protective pad.

Adopt above-mentioned technical scheme, U type cushion rubber piece in this scheme, the combination of spacing rubber post and flexible protection pad, through the spacing rubber post of the middle part fixed mounting of U type cushion rubber piece, can be when receiving pressure extrude towards the inside, when extrudeing a certain extent, the inside of aluminum hull will be hugged closely to spacing rubber post, prevent excessive deformation, the power of unloading simultaneously protects, flexible protection pad can protect spacing rubber post and prevent excessive wearing and tearing and extrusion deformation receiving the in-process of pressure.

The technical scheme of the invention is further improved as follows: the upper and lower both ends fixed mounting of U type cushion rubber piece has the fixed connection post, just the quantity of fixed connection post sets up to four, the top swing joint of fixed connection post has the pulley, the outside fixed mounting of pulley has the slider.

Adopt above-mentioned technical scheme, the combination of the fixed connection post in this scheme, pulley and slider through swing joint's pulley on the fixed connection post, when receiving pressure, slides through pulley and slider, prevents that the aluminum hull from excessively warping.

The technical scheme of the invention is further improved as follows: the inner side of the buffer inner cavity is provided with a limiting sliding groove, and the limiting sliding groove is movably connected with the sliding block.

Adopt above-mentioned technical scheme, the combination of spacing spout and slider in this scheme can make rubber buffer pad carry out the internal pushing when receiving pressure deformation, and the slider makes the pressurized process effectively carry out parallel translation.

The technical scheme of the invention is further improved as follows: the rubber buffer plate is characterized in that parallel fixing blocks are arranged inside the buffer inner cavity, the parallel fixing blocks are uniformly distributed inside the buffer inner cavity, and the parallel fixing blocks are fixedly connected with the rubber buffer plate in a perpendicular mode.

By adopting the technical scheme, the combination of the parallel fixing block, the buffer inner cavity and the rubber buffer plate in the scheme can strengthen the support of the aluminum shell through the parallel fixing block and the rubber buffer plate, so that the stability of the aluminum shell is improved, and the aluminum shell is not easy to deform.

The technical scheme of the invention is further improved as follows: the outer side of the internal capacitor device is provided with an adhesive tape, the inner side of the adhesive tape is provided with a cathodically formed foil, the inner side of the cathodically formed foil is provided with an electrolytic paper isolating layer material, the inner side of the electrolytic paper isolating layer material is provided with an anodically formed foil, and the inner side of the anodically formed foil is provided with isolating paper.

By adopting the technical scheme, the internal capacitor device in the scheme mainly cuts off the direct current of the circuit in an alternating current mode, has the functions of storing electric charges and releasing the electric charges, has good filtering performance and can output a pulse signal in a smooth mode.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a stable electrolytic capacitor, which is characterized in that a thermal induction layer, a thermal expansion body, an aluminum shell and a buffer inner cavity are combined, the internal heat is absorbed by the thermal expansion body and is expanded continuously, the absorbed heat is transmitted to the aluminum shell for heat dissipation treatment, and the temperature is reduced.

2. The invention provides a stable electrolytic capacitor, which can effectively buffer external pressure through the combination of a rubber buffer plate, a U-shaped buffer rubber block, a parallel fixed block, a pulley and a sliding block and through the rubber buffer plate arranged in a buffer inner cavity, protect an internal capacitor device, and then perform force unloading through the U-shaped buffer rubber block, thereby achieving secondary protection and enhancing the stability of the capacitor.

3. The invention provides a stable electrolytic capacitor, which can be extruded inwards under pressure through a limit rubber column fixedly arranged in the middle of a U-shaped buffer rubber block through the combination of the limit rubber column, a flexible protective pad, a fixed connecting column and a limit sliding chute, and can be tightly attached to the inside of an aluminum shell to prevent excessive deformation when being extruded to a certain degree, and meanwhile, the flexible protective pad can protect the limit rubber column from excessive abrasion and extrusion deformation in the pressure process, so that the mechanical stability of the capacitor is enhanced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of an internal capacitor device according to the present invention;

FIG. 3 is a cross-sectional view of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view of an aluminum shell of the present invention;

FIG. 5 is a schematic structural view of a U-shaped cushion rubber block of the present invention.

In the figure: 1. a capacitor body; 2. an outer terminal; 3. an inner contact post; 4. sealing the rubber cover; 5. an aluminum shell; 51. a buffer cavity; 52. a rubber buffer plate; 53. a U-shaped buffer rubber block; 531. limiting the rubber column; 532. a flexible protective pad; 533. fixing a connecting column; 534. a pulley; 535. a slider; 54. a limiting chute; 55. parallel fixed blocks; 6. an internal capacitive device; 61. an adhesive tape; 62. cathodically forming a foil; 63. an electrolytic paper barrier material; 64. anodizing into a foil; 65. release paper; 7. a heat-sensitive layer; 71. a thermally expansive body.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-5, the present invention provides a stable electrolytic capacitor, which comprises a capacitor body 1, an outer terminal 2, an inner contact column 3, a sealant cap 4, an aluminum shell 5, an inner capacitance device 6 and a thermal sensing layer 7, wherein the outer terminal 2 is fixedly connected to the upper side of the capacitor body 1, the inner contact column 3 is fixedly connected to the lower side of the outer terminal 2, the bottom of the inner contact column 3 extends to the inside of the aluminum shell 5, the sealant cap 4 is arranged on the top of the capacitor body 1, the aluminum shell 5 is fixedly connected to the lower side of the sealant cap 4, the thermal sensing layer 7 is arranged inside the aluminum shell 5, the inner capacitance device 6 is arranged inside the thermal sensing layer 7, thermal expansion bodies 71 are uniformly distributed inside the thermal sensing layer 7, the internal heat can be continuously expanded by the absorption of the thermal expansion bodies 71, and the absorbed heat can be transmitted to the aluminum shell 5 for heat dissipation, be favorable to the reduce temperature, the one end fixedly connected with aluminum hull 5 of thermal expansion body 71, the inside of aluminum hull 5 is provided with buffering inner chamber 51, the outside fixed mounting of buffering inner chamber 51 has rubber buffer board 52, can effectively cushion ambient pressure, protect inside electric capacity device, rethread U type cushion rubber piece 53 unloads the power, the inboard movable mounting who plays secondary protection rubber buffer board 52 has U type cushion rubber piece 53, the inboard middle part fixed mounting of U type cushion rubber piece 53 has spacing rubber column 531, the front end fixedly connected with flexible protection pad 532 of spacing rubber column 531, flexible protection pad 532 can protect spacing rubber column 531 at the in-process that receives pressure and prevent excessive wearing and extrusion deformation.

Example 2

As shown in fig. 1 to 5, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the upper and lower ends of the U-shaped buffer rubber block 53 are fixedly provided with the fixed connection posts 533, the number of the fixed connection posts 533 is four, the top end of the fixed connection post 533 is movably connected with the pulley 534, the outer side of the pulley 534 is fixedly provided with the slider 535, the pulley 534 and the slider 535 slide through the pulley 534 movably connected with the fixed connection post 533 when receiving pressure, so as to prevent the aluminum shell 5 from excessively deforming, the inner side of the buffer inner cavity 51 is provided with the limit chute 54, the limit chute 54 is movably connected with the slider 535, the inside of the buffer inner cavity 51 is provided with the parallel fixed blocks 55, the parallel fixed blocks 55 are uniformly distributed inside the buffer inner cavity 51, the parallel fixed blocks 55 are vertically and fixedly connected with the rubber buffer plate 52, the combination of the buffer inner cavity 51 and the rubber buffer plate 52 can strengthen the support of the aluminum shell 5 through the parallel fixed blocks 55 and the rubber buffer plate 52, the stability of the capacitor is improved, the capacitor is not easy to deform, the mechanical stability of the capacitor is improved, the adhesive tape 61 is arranged on the outer side of the internal capacitor device 6, the cathode formed foil 62 is arranged on the inner side of the adhesive tape 61, the electrolytic paper isolating layer material 63 is arranged on the inner side of the cathode formed foil 62, the anode formed foil 64 is arranged on the inner side of the electrolytic paper isolating layer material 63, the isolating paper 65 is arranged on the inner side of the anode formed foil 64, and the pulse signal can be output in a smooth mode.

The operation principle of the stable electrolytic capacitor will be described in detail below.

As shown in fig. 1-5, when the stable electrolytic capacitor is used, the capacitor releases heat in the using process, the inner side of the aluminum shell 5 is fixedly connected with the thermal expansion body 71, the thermal expansion body 71 absorbs the internal heat and can expand continuously, the absorbed heat can be transmitted to the aluminum shell 5 for heat dissipation treatment, which is beneficial to reducing the temperature, when external pressure is received, the aluminum shell 5 transmits the received pressure to the rubber buffer plate 52 arranged inside, the rubber buffer plate 52 receives the pressure and can extrude the deformation to the U-shaped buffer rubber block 53, the limit rubber column 531 fixedly arranged in the middle of the U-shaped buffer rubber block 53 can extrude towards the inside when receiving the pressure, when the limit rubber column 531 is extruded to a certain degree, the limit rubber column 531 can cling to the inside of the aluminum shell 5 to prevent excessive deformation, and protect the unloading force at the same time, the flexible protection pad 532 can protect the limit rubber column 531 in the process of receiving the pressure to prevent excessive abrasion The mechanical stability of the capacitor is enhanced due to the extrusion deformation.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.

Claims

1. The utility model provides a stable form electrolytic capacitor, includes capacitor body (1), outer terminal (2), interior contact post (3), sealant lid (4), aluminum hull (5), internal capacitance device (6) and thermoinduction layer (7), the top fixedly connected with outer terminal (2) of capacitor body (1), contact post (3) in the below fixedly connected with of outer terminal (2), the bottom of interior contact post (3) extend with the inside of aluminum hull (5), the top of capacitor body (1) is provided with sealant lid (4), the below fixedly connected with aluminum hull (5) of sealant lid (4), its characterized in that: a thermal induction layer (7) is arranged inside the aluminum shell (5), and an internal capacitance device (6) is arranged inside the thermal induction layer (7).

2. A stabilized electrolytic capacitor according to claim 1, wherein: thermal expansion bodies (71) are uniformly distributed in the thermal induction layer (7), and one end of each thermal expansion body (71) is fixedly connected with an aluminum shell (5).

3. A stabilized electrolytic capacitor according to claim 1, wherein: the inside of aluminum hull (5) is provided with buffering inner chamber (51), the outside fixed mounting of buffering inner chamber (51) has rubber buffer board (52), the inboard movable mounting of rubber buffer board (52) has U type cushion rubber piece (53).

4. A stabilized electrolytic capacitor according to claim 3, wherein: the U-shaped buffer rubber block is characterized in that a limiting rubber column (531) is fixedly mounted in the middle of the inner side of the U-shaped buffer rubber block (53), and a flexible protective pad (532) is fixedly connected to the front end of the limiting rubber column (531).

5. A stabilized electrolytic capacitor according to claim 3, wherein: the utility model discloses a buffer rubber block's U type buffer rubber piece (53) upper and lower both ends fixed mounting has fixed connection post (533), just the quantity of fixed connection post (533) sets up to four, the top swing joint of fixed connection post (533) has pulley (534), the outside fixed mounting of pulley (534) has slider (535).

6. A stabilized electrolytic capacitor according to claim 3, wherein: the inner side of the buffer inner cavity (51) is provided with a limiting sliding groove (54), and the limiting sliding groove (54) is movably connected with the sliding block (535).

7. A stabilized electrolytic capacitor according to claim 3, wherein: the rubber buffer is characterized in that parallel fixing blocks (55) are arranged inside the buffer inner cavity (51), the parallel fixing blocks (55) are uniformly distributed inside the buffer inner cavity (51), and the parallel fixing blocks (55) are vertically and fixedly connected with the rubber buffer plate (52).

8. A stabilized electrolytic capacitor according to claim 1, wherein: the outside of inside electric capacity device (6) is provided with sticky tape (61), the inboard of sticky tape (61) is provided with cathodically and becomes foil (62), the inboard that cathodically becomes foil (62) is provided with electrolytic paper isolation layer material (63), the inboard of electrolytic paper isolation layer material (63) is provided with anodize and becomes foil (64), the inboard that anodize becomes foil (64) is provided with barrier paper (65).