CN212342469U

CN212342469U - Aluminum electrolytic capacitor with double-layer bottom

Info

Publication number: CN212342469U
Application number: CN202021054788.1U
Authority: CN
Inventors: 张洪斌; 张业维; 余艳; 吴培恺
Original assignee: Guangzhou Chinsan Electronic Co ltd
Current assignee: Guangzhou Chinsan Electronic Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-12
Anticipated expiration: 2030-06-10

Abstract

The utility model particularly discloses an aluminum electrolytic capacitor with a double-layer bottom, which comprises a shell, wherein a capacitor core is arranged in the shell; the bottom of the capacitor core is provided with a heat conduction expansion nail; the bottom of the shell is provided with a piercing bottom layer; the middle part of the piercing bottom layer is downwards sunken to form a piercing groove with a conical structure; the heat-conducting expansion nail extends into the inner side of the piercing groove; a heat dissipation bottom bin with an upward opening is arranged below the punctured bottom layer; the piercing groove extends into the heat dissipation bottom bin; a plurality of heat-conducting plates are horizontally arranged in the heat-radiating bottom bin. The utility model discloses in the use, the electric capacity core generates heat and with heat transfer to heat conduction expansion nail, the heat conduction expansion nail is heated the expansion and is extended and pass and impale the groove and stretch into the inside of heat dissipation bottom bin and contact with the heat-conducting plate to the realization can be with heat transfer to the heat-conducting plate, can be with heat transfer to the external world through the heat-conducting plate, guarantees that the temperature of electric capacity core is in normal scope, the utility model relates to a rationally, the radiating effect is good, is fit for using widely.

Description

Aluminum electrolytic capacitor with double-layer bottom

Technical Field

The utility model relates to the technical field of capacitors, concretely relates to aluminum electrolytic capacitor with double-layer bottom.

Background

A capacitor is a component capable of storing electric charges and is one of the most commonly used electronic components. The method is widely used for coupling, filtering, decoupling, high-frequency vibration elimination, resonance, neutralization, timing, integration, differentiation, compensation, frequency division and the like in circuits. In fact, the aluminum shell of a common capacitor has poor heat dissipation effect, the capacitor can emit large heat in the use process, and if the heat is not timely dissipated, the capacitor is easily burnt, and the breakdown of the whole circuit is caused; at present, the defect that the inside of a capacitor is exploded due to high temperature is overcome by arranging an explosion-proof groove, but the normal use of other components and parts is influenced after the explosion-proof groove is cracked, and the overall attractiveness is also influenced.

Therefore, we provide a double-bottom aluminum electrolytic capacitor to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an aluminum electrolytic capacitor with a double-layer bottom is provided, which has reasonable design, good heat dissipation effect and is suitable for popularization and use.

An aluminum electrolytic capacitor with a double-layer bottom comprises a shell, wherein a capacitor core is arranged in the shell; the bottom of the capacitor core is provided with a heat conduction expansion nail; the bottom of the shell is provided with a piercing bottom layer; the middle part of the piercing bottom layer is downwards sunken to form a piercing groove with a conical structure; the heat-conducting expansion nail extends into the inner side of the piercing groove; a heat dissipation bottom bin with an upward opening is arranged below the punctured bottom layer; the piercing groove extends into the heat dissipation bottom bin; a plurality of heat-conducting plates are horizontally arranged in the heat-radiating bottom bin.

Further preferably, the edges of the plurality of heat conducting plates extend out of the outer side of the heat dissipation bottom bin.

Further preferably, the middle parts of the plurality of heat conducting plates are provided with through holes; the through hole is arranged right below the puncturing groove.

Further preferably, the diameter of the through hole on the heat conducting plate close to one end of the puncturing groove is larger than that of the through hole on the heat conducting plate far away from one end of the puncturing groove.

Further preferably, the thickness of the piercing groove is one fourth to one third of the thickness of the piercing base layer.

Preferably, the outer diameter of the heat dissipation bottom bin is consistent with the outer diameter of the outer shell.

Further preferably, the opening of the heat dissipation bottom bin is fixedly connected with the edge of the bottom layer.

Preferably, a heat insulation filler is arranged between the outer shell and the capacitor core; the heat-insulating filler is glass fiber or asbestos filler.

Preferably, one end of the capacitor core, which is far away from the heat-conducting expansion nail, is symmetrically provided with electrodes extending out of the shell.

Has the advantages that: the utility model relates to a rationally, the electric capacity core generates heat and with heat transfer to heat conduction expansion nail in the use, because impale groove thickness less, the heat conduction expansion nail is heated the thermal expansion and is extended and pass the inside that impales the groove and stretch into heat dissipation bottom bin and contact with the heat-conducting plate to the realization can be with heat transfer to heat-conducting plate, can be in normal scope with heat transfer to the external world through the heat-conducting plate, the utility model relates to a rationally, the radiating effect is good, is fit for using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-a housing; 2-heat dissipation bottom bin; 3-a capacitor core; 4-an electrode; 5-an insulating filler; 6-heat conduction expansion nail; 7-piercing the bottom layer; 8-piercing the groove; 9-heat conducting plate; 10-through hole.

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 "far away", "close", "bottom", "between", "inside", "outside", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the 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; furthermore, unless expressly stated or limited otherwise, the terms "provided", "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 for a person of ordinary skill in the art; the term "a number" means at least 3 or more, such as 3, 4 or 5, etc.

Examples

As shown in figure 1, the utility model provides an aluminum electrolytic capacitor with double-layer bottom, which comprises a shell 1, a capacitor core 3 is arranged in the shell 1, one end of the capacitor core 3, which is far away from a heat-conducting expansion nail 6, is symmetrically provided with an electrode 4 extending out of the shell 1, the bottom of the capacitor core 3 is provided with the heat-conducting expansion nail 6, the bottom of the shell 1 is provided with a piercing bottom layer 7, the middle part of the piercing bottom layer 7 is sunken downwards to form a piercing groove 8 with a conical structure, the thickness of the piercing groove 8 is one fourth of the thickness of the piercing bottom layer 7, the heat-conducting expansion nail 6 extends into the inner side of the piercing groove 8, a heat-radiating bottom bin 2 with an upward opening is arranged below the piercing bottom layer 7, the piercing groove 8 extends into the heat-radiating bottom bin 2, 3 heat-conducting plates 9 are horizontally arranged in the heat-radiating bottom bin 2, the capacitor core 3 generates heat and transmits the heat to the heat-conducting expansion nail 6, because the thickness of the piercing groove, thereby realize with heat transfer to heat-conducting plate 9, can be with heat transfer to the external world through heat-conducting plate 9, guarantee that the temperature of electric capacity core 3 is in normal scope.

In the specific example of the present invention, the edge of each heat conducting plate 9 extends out of the outer side of the bottom heat dissipating chamber 2, so as to facilitate the heat conducting plate 9 to transfer heat with the outside air, the middle part of each heat conducting plate 9 is provided with a through hole 10, the through hole 10 is arranged under the piercing groove 8, the diameter of the through hole 10 on the heat conducting plate 9 near one end of the piercing groove 8 is larger than the diameter of the through hole 10 on the heat conducting plate 9 far away from one end of the piercing groove 8, after the heat conducting expansion nail 6 pierces the piercing groove 8, it is ensured along the through hole 10 that each heat conducting plate 9 is contacted with the heat conducting expansion nail 6 to realize heat transfer, the outer diameter of the bottom heat dissipating chamber 2 is consistent with the outer diameter of the casing 1, the opening of the bottom heat dissipating chamber 2 is fixedly connected with the edge of the piercing bottom layer 7, so as to facilitate processing and have better aesthetic property, the heat insulating filler 5 is, avoid causing the influence to other components and parts, the utility model relates to a rationally, the radiating effect is good, is fit for using widely.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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 aluminum electrolytic capacitor with double-layer bottom is characterized in that: the capacitor comprises a shell, wherein a capacitor core is arranged in the shell; the bottom of the capacitor core is provided with a heat conduction expansion nail; the bottom of the shell is provided with a piercing bottom layer; the middle part of the piercing bottom layer is downwards sunken to form a piercing groove with a conical structure; the heat-conducting expansion nail extends into the inner side of the piercing groove; a heat dissipation bottom bin with an upward opening is arranged below the punctured bottom layer; the piercing groove extends into the heat dissipation bottom bin; a plurality of heat-conducting plates are horizontally arranged in the heat-radiating bottom bin.

2. The double-bottom aluminum electrolytic capacitor as recited in claim 1 wherein the edges of the plurality of thermally conductive plates extend outside the heat sink bottom compartment.

3. The double-bottom aluminum electrolytic capacitor as claimed in claim 2, wherein the heat conducting plates are provided with through holes at the middle parts thereof; the through hole is arranged right below the puncturing groove.

4. The double-bottom aluminum electrolytic capacitor as recited in claim 3, wherein the diameter of the through hole of the heat conducting plate near the end of the piercing through slot is larger than the diameter of the through hole of the heat conducting plate far from the end of the piercing through slot.

5. The double-bottom aluminum electrolytic capacitor as recited in claim 4, wherein the thickness of the piercing through groove is one quarter to one third of the thickness of the piercing through bottom layer.

6. The double-bottom aluminum electrolytic capacitor as recited in claim 1, wherein the outer diameter of the heat sink bottom bin is identical to the outer diameter of the outer shell.

7. The double-bottom aluminum electrolytic capacitor as recited in claim 6, wherein the opening of the heat sink bottom bin is fixedly connected to the edge of the bottom layer.

8. The double-bottom aluminum electrolytic capacitor as recited in claim 1, wherein a thermal insulating filler is disposed between the outer shell and the capacitor core; the heat-insulating filler is glass fiber or asbestos filler.

9. The double-bottom aluminum electrolytic capacitor as recited in claim 1, wherein the capacitor core is provided with electrodes extending out of the case at ends thereof away from the thermal expansion nail.