CN210628110U

CN210628110U - Insulating double-beam-waist aluminum electrolytic capacitor easy to radiate heat

Info

Publication number: CN210628110U
Application number: CN201921980340.XU
Authority: CN
Inventors: 刘万锦
Original assignee: Guangzhou Chinsan Electronic Co ltd
Current assignee: Guangzhou Chinsan Electronic Co ltd
Priority date: 2019-11-16
Filing date: 2019-11-16
Publication date: 2020-05-26
Anticipated expiration: 2029-11-16

Abstract

The utility model discloses an insulating easy radiating two beam waist aluminum electrolytic capacitor, including casing and electric capacity prime, be equipped with in the casing and hold the chamber, electric capacity prime is accomodate and is holding the intracavity, and the upper end cover of casing has closed the apron, is equipped with the apron beam waist and the prime beam waist to the shell indent on the lateral wall of casing respectively, and the apron beam waist is used for compressing tightly the side of apron, and prime beam waist is used for compressing tightly the side of electric capacity prime, and the coating has the insulating layer on the outer wall of casing, and the insulating layer is insulating oxide film, and insulating oxide film is honeycomb. The two sides of the cover plate and the two sides of the capacitor element are respectively compressed through the cover plate girdling and the element girdling, so that the phenomenon that the performance of the aluminum electrolytic capacitor is unstable when vibration occurs is avoided, the vibration resistance is enhanced, and due to the combined action of the insulating oxide film, the outer-layer graphene and the inner-layer graphene, the capacitor has good insulating performance and good heat dissipation performance, and the problem that the heat dissipation of the original capacitor is slow is solved.

Description

Insulating double-beam-waist aluminum electrolytic capacitor easy to radiate heat

Technical Field

The utility model relates to the field of capacitors, in particular to an insulated double-beam waist aluminum electrolytic capacitor easy to radiate.

Background

With the development of light, thin and small electronic products and the wide application of surface mounting technology in electronic technology, the aluminum electrolytic capacitor used has been put forward higher and higher requirements accordingly, and the volume of the aluminum electrolytic capacitor is developed in the direction of smaller and smaller. The small size of the aluminum electrolytic capacitor requires the heat dissipation requirement of the internal structure of the capacitor to be higher and higher. However, the existing capacitor has poor heat dissipation effect, is easy to generate thermal aging phenomenon under the condition of long-time high temperature, has poor insulation effect, and can influence the normal use of the capacitor, thereby seriously influencing the practical service life of the capacitor; meanwhile, the situation that the capacitor fails due to unstable performance caused by vibration, even short circuit of the anode and the cathode inside or ignition between the anode and the aluminum shell easily occurs. In this application environment, high reliability and stability of the capacitor under vibration conditions must be ensured.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects existing in the prior art, the utility model provides a double-beam waist aluminum electrolytic capacitor which has good insulating property, is easy to radiate heat and has strong vibration resistance.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an insulating easy radiating two beam waist aluminum electrolytic capacitor, includes casing and electric capacity prime, be equipped with in the casing and hold the chamber, electric capacity prime is accomodate and is holding the intracavity, the upper end cover of casing has closed the apron, be equipped with the apron beam waist and the prime beam waist to the casing indent on the lateral wall of casing respectively, the apron beam waist is used for compressing tightly the side of apron, prime beam waist is used for compressing tightly the side of electric capacity prime, the coating has the insulating layer on the outer wall of casing, the insulating layer is insulating oxide film, insulating oxide film is honeycomb.

Preferably, the honeycomb structure is filled with insulating glue.

Preferably, the cover plate beam waist and the prime sub beam waist are grooves with rectangular or trapezoidal sections.

Preferably, the cover plate beam waist and the element beam waist surround the middle positions of the cover plate and the capacitor element respectively.

Preferably, the outer side of the insulating layer is plated with outer graphene, and the inner wall of the shell is coated with inner graphene.

Preferably, a slot is formed in the inner wall of the shell, the inner graphene layer is plated in the slot, and the thickness of the inner graphene layer is the same as the depth of the slot.

Preferably, the depth of the groove is 0.1mm to 0.12 mm.

Preferably, the depth of the slot is 0.12 mm.

As preferred scheme, set up the first trompil and the second trompil that the intercommunication held the chamber on the apron respectively, it has anodal binding post and the negative pole binding post of being connected with the electric capacity element to stretch into respectively in first trompil and the second trompil downwards.

As the preferred scheme, first chucking part and second chucking part have been seted up respectively to the upper end of casing, first chucking part and second chucking part are hook-shaped, just first chucking part and second chucking part all contact the upper surface of apron.

Compared with the prior art, the beneficial effects of the utility model are that: the insulating oxide film is coated on the outer wall of the shell, so that the capacitor has good insulating property, the insulating oxide film is honeycomb-shaped, heat in the shell can be easily transmitted out, the heat radiation performance of the capacitor in the shell cannot be influenced, and meanwhile, the cover plate beam waist and the element beam waist which are arranged on the side wall of the shell respectively compress the side surfaces of the cover plate and the capacitor element, so that the cover plate and the capacitor element are firmly installed in an aluminum shell of the capacitor, and the situation that the performance is unstable when the aluminum electrolytic capacitor vibrates and the anode and the cathode are short-circuited is avoided; the inner graphene layer and the outer graphene layer are respectively plated on the inner wall of the shell and the outer side of the insulating oxide film, and due to the fact that the graphene has good heat conduction performance, heat in the aluminum shell of the capacitor can be rapidly conducted out, rapid heat dissipation of the capacitor is achieved, the problem that the original electrolytic capacitor is slow in heat dissipation is solved, and the service life of the aluminum electrolytic capacitor is prolonged.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic diagram of the insulating and heat-dissipating double-beam waist aluminum electrolytic capacitor of the present invention.

Fig. 2 is an internal schematic view of the insulating and heat-dissipating double-beam waist aluminum electrolytic capacitor of the present invention.

1-a shell; 2-outer layer graphene; 3-vegetarian corset; 4-cover plate waist binding; 5-positive terminal; 6-a negative pole wiring terminal; 7-insulating oxide film; 8-inner graphene; 9-groove position; 10-a capacitor element; 11-a first opening; 12-a second opening; 13-a cover plate; 14-a first gripping portion; 15-a second gripping portion; 16-containing chamber.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 and 2, an insulated double-beam aluminum electrolytic capacitor with easy heat dissipation comprises a shell 1 and a capacitor element 10, wherein the shell 1 is a cylindrical aluminum shell, a containing cavity 16 is arranged in the shell 1, the capacitor element 10 is contained in the containing cavity 16, a cover plate 13 is covered at the upper end of the shell 1, a cover plate beam waist 4 and a capacitor element beam waist 3 which are concave towards the shell are respectively arranged on the side wall of the shell 1, the cover plate beam waist 4 is used for pressing the side surface of the cover plate 13, the capacitor element beam waist 4 is used for pressing the side surface of the capacitor element 10, an insulating layer is coated on the outer wall of the shell 1, an outer heat dissipation layer is plated on the outer side of the insulating layer, and an inner heat dissipation layer is coated on the inner wall of the shell 1; the insulating layer is an insulating oxide film 7, the insulating oxide film 7 is of a honeycomb structure, the inner heat dissipation layer is inner-layer graphene 8, the outer heat dissipation layer is outer-layer graphene 2, meanwhile, a first opening 11 and a second opening 12 which are communicated with the accommodating cavity 16 are formed in the cover plate 13 respectively, and a positive wiring terminal 5 and a negative wiring terminal 6 which are connected with the capacitor element 10 extend downwards into the first opening 11 and the second opening 12 respectively.

By adopting the scheme, the capacitor element 10 is arranged in the accommodating cavity 16 of the aluminum shell, then the cover plate 13 is used for sealing the upper part of the aluminum shell of the capacitor, and finally the positive terminal 5 and the negative terminal 6 are respectively inserted into the first opening 11 and the second opening 12 to be connected with the capacitor element 10, so that the electrolytic capacitor is assembled, the cover plate beam waist 4 and the element beam waist 3 which are arranged on the side wall of the shell 1 respectively compress the side surfaces of the cover plate 13 and the capacitor element 10, so that the cover plate 13 and the capacitor element 10 are firmly arranged in the shell 1, and the phenomenon that the performance is unstable when the aluminum electrolytic capacitor vibrates and the positive and negative short circuits occur is avoided; the outer wall coating at casing 1 has insulating oxide film 7, make the condenser aluminum hull have good insulating properties, and insulating oxide film 7 is cellular, do benefit to the heat in casing 1 to see through, can not influence the heat dispersion of condenser in casing 1, inner graphene 8 and outer graphene 2 are plated respectively in the outside of the inner wall of casing 1 and insulating layer simultaneously, because graphite alkene has very good heat-conduction performance, consequently can be fast with the heat in casing 1 derive the outside, the quick heat dissipation to the condenser has been realized, it is slow to have solved original electrolytic capacitor heat dissipation, the life of aluminum electrolytic capacitor has been improved.

Specifically, the cover plate beam waist 4 and the element beam waist 3 respectively surround the middle positions of the cover plate 13 and the capacitor element 10, and the cover plate beam waist 4 and the element beam waist 3 are grooves with rectangular or trapezoidal sections; in the present embodiment, the cover plate beam waist 4 and the element beam waist 3 are both grooves with trapezoidal cross sections.

By adopting the scheme, when the capacitor vibrates, the cover plate beam waist 4 and the element beam waist 3 always compress the cover plate 13 and the element capacitor 10, the unstable performance of the element capacitor 10 caused by vibration is avoided, and the cover plate beam waist 4 and the element beam waist 3 are trapezoidal, so that the contact area between the cover plate 13 and the element capacitor 10 is increased, and a large buffer force can be obtained during vibration.

Specifically, a groove 9 is formed in the inner wall of the shell 1, the inner graphene layer 8 is plated in the groove 9, and the thickness of the inner graphene layer 8 is the same as the depth of the groove 9; wherein the depth of the slot 9 is 0.1 mm-0.12 mm.

Adopt above-mentioned scheme, offer trench 9 at the inner wall of casing 1 is for conveniently plating inner layer graphite alkene 8 at the inner wall of casing 1 fast, and the degree of depth of trench 9 is the best for 0.12mm, because when the degree of depth of trench 9 is too shallow, can make the graphite alkene of plating at casing 1 inner wall less, the radiating effect is not good, when the degree of depth of trench 9 is too deep, can make casing 1's intensity step-down.

Specifically, the upper end of the housing 1 is provided with a first clamping part 14 and a second clamping part 15 respectively, the first clamping part 14 and the second clamping part 15 are hook-shaped, and the first clamping part 14 and the second clamping part 15 both contact the upper surface of the cover plate 13.

By adopting the scheme, the upper surface of the cover plate 13 is clamped through the first clamping part 14 and the second clamping part 15, and the sealing performance of the capacitor is further enhanced.

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 evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An insulated double-beam-waist aluminum electrolytic capacitor easy to radiate is characterized in that: including casing and electric capacity prime, be equipped with in the casing and hold the chamber, electric capacity prime is accomodate and is holding the intracavity, the upper end cover of casing has closed the apron, be equipped with the apron beam waist and the prime beam waist to the casing indent on the lateral wall of casing respectively, the apron beam waist is used for compressing tightly the side of apron, prime beam waist is used for compressing tightly the side of electric capacity prime, the coating has the insulating layer on the outer wall of casing, the insulating layer is insulating oxide film, insulating oxide film is honeycomb.

2. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 1, which is characterized in that: the honeycomb structure is filled with insulating glue.

3. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 1, which is characterized in that: the cover plate beam waist and the prime beam waist are grooves with rectangular or trapezoidal sections.

4. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 3, wherein: the cover plate beam waist and the element beam waist respectively surround the middle positions of the cover plate and the capacitor element.

5. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 1, which is characterized in that: the outer side of the insulating layer is plated with outer graphene, and the inner wall of the shell is coated with inner graphene.

6. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 5, wherein: the inner wall of the shell is provided with a groove position, the inner graphene layer is plated in the groove position, and the thickness of the inner graphene layer is the same as the depth of the groove position.

7. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 6, wherein: the depth of the groove position is 0.1 mm-0.12 mm.

8. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 7, wherein: the depth of the groove is 0.12 mm.

9. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 1, which is characterized in that: set up first trompil and the second trompil that the intercommunication held the chamber on the apron respectively, stretch into respectively downwards in first trompil and the second trompil and have positive binding post and negative binding post be connected with the electric capacity prime.

10. The insulated double-beam-waist aluminum electrolytic capacitor easy to dissipate heat of claim 1, which is characterized in that: first clamping part and second clamping part have been seted up respectively to the upper end of casing, first clamping part and second clamping part are hook-shaped, just first clamping part and second clamping part all contact the upper surface of apron.