CN210467593U

CN210467593U - Novel high-temperature high-frequency large-current capacitor

Info

Publication number: CN210467593U
Application number: CN201922092999.8U
Authority: CN
Inventors: 吴俭鸿
Original assignee: Foshan Shunde Hongye Electronic Co ltd
Current assignee: Foshan Shunde Hongye Electronic Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-05-05
Anticipated expiration: 2029-11-28

Abstract

The utility model provides a novel high temperature high frequency heavy current condenser belongs to condenser technical field, and it includes: the capacitor comprises an outer shell, an inner shell and electrode plates, wherein the inner shell is arranged in the outer shell, two layers of electrode plates which are mutually spaced are arranged in the inner shell, an anode pin and a cathode pin are respectively connected to the two layers of electrode plates, the anode pin and the cathode pin sequentially penetrate through the inner shell and the outer shell respectively and extend to the outer part of the outer shell, the capacitor further comprises a tubular heat dissipation wire, the two ends of the heat dissipation wire are communicated with the inner part of the outer shell, heat conduction liquid is filled between the outer surface of the outer shell and the inner shell and in the heat dissipation wire, the heat dissipation capacity of the capacitor can be improved due to the arrangement of the heat conduction liquid and the heat dissipation wire, and the normal operation of.

Description

Novel high-temperature high-frequency large-current capacitor

Technical Field

The utility model belongs to the technical field of the condenser, concretely relates to novel high temperature high frequency heavy current condenser.

Background

With the change of electronic information technology, the update speed of digital electronic products is faster and faster, and electronic devices are rapidly developed. Along with the refinement of electrical equipment and the improvement of the requirement on the quality of electric energy, the performance of electronic components also needs to be improved, and in the field of electric automobiles, the field of ultrahigh-voltage power transmission and transformation and the field of smart power grids, a capacitor which can bear high-frequency and high-current at high temperature is often needed, and the common capacitor can not meet the requirement on high-current ultrahigh-voltage high-temperature resistance. When the capacitor is in the environment conditions of overhigh temperature rise, overvoltage and overcurrent for a long time, the internal pressure of the capacitor is overlarge, and the capacitor is easily damaged.

To above problem, the utility model provides a high temperature high frequency heavy current condenser, its inside heat conduction liquid that is equipped with, the outside heat dissipation silk that is equipped with, when inside and outside formation temperature difference, go in inside heat conduction liquid flow direction heat dissipation silk's inside to this dispels the inside heat of condenser fast, ensures its normal operating.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel high temperature high frequency heavy current condenser aims at solving the problem that can not dispel the heat fast among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel high-temperature high-frequency large-current capacitor comprises: the heat dissipation device comprises an outer shell, an inner shell and electrode plates, wherein the inner shell is arranged inside the outer shell, two layers of electrode plates which are mutually spaced are arranged inside the inner shell, an anode pin and a cathode pin are respectively connected to the two layers of electrode plates, the anode pin and the cathode pin sequentially penetrate through the inner shell and the outer shell respectively and extend to the outer portion of the outer shell, the heat dissipation device further comprises a tubular heat dissipation wire, two ends of the heat dissipation wire are communicated with the inner portion of the outer shell, and heat conduction liquid is filled between the outer surface of the outer shell and the inner shell and inside the.

In order to make the condenser receive the biggest electrode slice of area in limited space to this reaches miniaturized effect, as the utility model relates to an it is preferred, two-layer the electrode slice each other convolute and form cylindrically, and the interval between the adjacent electrode slice equals.

In order to make prevent that heat conduction liquid from taking place to leak, as the utility model relates to an it is preferred, the leak protection circle is installed with the connecting portion of shell and inner shell to positive pole pin andor negative pole pin, and the setting of leak protection circle can prevent that heat conduction liquid from taking place to leak.

In order to enable the annular sleeve to be installed and replaced quickly, the annular sleeve is preferably sleeved with the shell.

In order to make the radiating effect better, as the utility model relates to an it is preferred, the upper surface of shell is scribbled the heat absorption coating, and the setting of heat absorption coating can scatter and disappear to the heat of shell upper surface effectively.

In order to make the leading-in nature of heat dissipation silk stronger, conduct the utility model relates to an it is preferred, the heat dissipation silk is copper or aluminum alloy material, and the texture of this kind of material is hard and the leading-in nature is strong.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the inner shell is installed in the inside of shell, and both directly leave the clearance, and this clearance intussuseption is filled with heat-conducting liquid, by positive pole pin and negative pole pin access circuit, when letting in high frequency heavy current in the condenser, the inside heat that will the rapid accumulation of inner shell, and heat-conducting liquid parcel is around the outside of inner shell. Therefore, the heat-conducting liquid can absorb most of the heat on the surface of the inner shell, and the purpose of heat dissipation is achieved. The electrode slice is installed in the inside of inner shell, and the electrode slice in the whole inner shell all can produce the heat, and the heat of inner shell outer lane is absorbed a part by the heat conduction liquid for the inside and outside production temperature difference of inner shell, the heat of inner shell central part gives off to the outside, and the heat conduction liquid between shell and inner shell also has the temperature difference like the principle, and the heat conduction liquid of the heat conduction liquid absorption on inner shell surface gives off to the heat conduction liquid of outside. Through the steps, the heat generated in the inner shell is conducted to the outside, part of the heat is absorbed by the heat-conducting liquid, and part of the heat is dissipated to the ambient environment from the surface of the outer shell. Thereby preventing the sudden temperature rise of the capacitor from influencing the operation of the capacitor.

2. When the capacitor is connected with high-frequency heavy current for a long time, heat is continuously generated in the capacitor, the heat conducting liquid absorbs the heat and is heated to a certain temperature, the heat conducting liquid mainly plays a role in heat conduction, and the rate of heat dissipation on the surface of the shell has a certain upper limit. When the rate at which the capacitor generates heat is greater than the upper limit, the internal temperature of the capacitor will continue to rise. In order to increase the surface heat dissipation capacity of the capacitor shell, a plurality of tubular heat dissipation wires are arranged on the surface of the shell, liquid heat conduction liquid is filled in the heat dissipation wires, the temperature of the heat conduction liquid is increased after the heat conduction liquid absorbs heat, the heat conduction area of the surfaces of the heat dissipation wires is large, enough space is reserved among the heat dissipation wires for air circulation, and external air can rapidly take away the heat on the surfaces of the heat dissipation wires, so that uninterrupted heat dissipation is realized. Therefore, the phenomenon that the normal operation of the capacitor is influenced by the continuous accumulation of the heat inside the capacitor when the capacitor operates for a long time is prevented.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a perspective view of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure: 1-a housing; 2-anode pin; 3-a cathode pin; 4-inner shell; 5-electrode slice; 6-annular sleeve; 7-heat dissipation wires; 8-heat conducting liquid.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides the following technical solutions: two layers of electrode plates 5 which are mutually spaced are arranged inside the inner shell 4, the two layers of electrode plates 5 are respectively connected with the anode pin 2 and the cathode pin 3, the outer part of the inner shell 4 is provided with the outer shell 1, and heat conducting liquid 8 is filled between the inner shell 4 and the outer shell 1. The bottom of the anode pin 2 and the cathode pin 3 pass through the inner shell 4 and the outer shell 1, and the anode pin 2 and the cathode pin 3 extend to the outside of the outer shell 1 for accessing the circuit. When the capacitor is switched on with high-frequency and high-current, the temperature of the electrode plates 5 inside the inner shell 4 can be rapidly increased, and the heat conducting liquid 8 between the outer shell 1 and the inner shell 4 can rapidly absorb the heat inside the inner shell 4, so that the sudden temperature rise of the capacitor is prevented. In order to increase the heat dissipation capacity of the shell 1, the heat dissipation wires 7 are mounted outside the shell 1, the heat dissipation wires 7 are of a tubular structure, an inner cavity of each heat dissipation wire 7 is connected with the inside of the shell 1 into a whole, heat conduction liquid 8 is filled inside each heat dissipation wire 7, the contact area between each heat dissipation wire 7 and the surrounding environment is large, heat absorbed by the heat conduction liquid 8 inside each heat dissipation wire can be taken away by surrounding air quickly, and therefore the effect of quickly dissipating heat is achieved.

Specifically, in order to prevent the heat conducting liquid 8 between the outer shell 1 and the inner shell 4 from leaking, leak-proof rings are installed at the joints of the anode pin 2 and the cathode pin 3 with the inner shell 4 and the outer shell 1 respectively, and the leak-proof rings can adopt molten glass fibers to fill gaps at the joints and form sealing after the leak-proof rings are cooled.

Further, the two-layer electrode sheet 5 is formed in a cylindrical shape in a wound form, thereby being placed in the inside of the cylindrical inner casing 4. The inside of inner shell 4 is filled with electric capacity liquid, and electric capacity liquid both has done the structure supporting role to electrode slice 5 andor inner shell 4, also can the rapid transfer heat.

Example 2

Referring to fig. 2-4, the present invention provides the following technical solutions: two layers of electrode plates 5 which are mutually spaced are arranged inside the inner shell 4, the two layers of electrode plates 5 are respectively connected with the anode pin 2 and the cathode pin 3, the outer part of the inner shell 4 is provided with the outer shell 1, and heat conducting liquid 8 is filled between the inner shell 4 and the outer shell 1. The bottom of the anode pin 2 and the cathode pin 3 pass through the inner shell 4 and the outer shell 1, and the anode pin 2 and the cathode pin 3 extend to the outside of the outer shell 1 for accessing the circuit. When the capacitor is switched on with high-frequency and high-current, the temperature of the electrode plates 5 inside the inner shell 4 can be rapidly increased, and the heat conducting liquid 8 between the outer shell 1 and the inner shell 4 can rapidly absorb the heat inside the inner shell 4, so that the sudden temperature rise of the capacitor is prevented. In order to increase the heat dissipation capacity of the shell 1, an annular sleeve 6 is movably mounted outside the shell 1, and the shell 1 and the annular sleeve 6 can be connected in a sleeving, clamping or bonding mode. The annular sleeve 6 is provided with the heat dissipation wires 7, the heat dissipation wires 7 are of a tubular structure, an inner cavity of the heat dissipation wires 7 is connected with the inside of the annular sleeve 6 into a whole, and the heat dissipation wires 7 and the inside of the annular sleeve 6 are also filled with heat conduction liquid 8. In order to connect the inner cavity of the annular sleeve 6 and the inner part of the shell 1 into a whole, a connecting port is correspondingly arranged on the inner surface of the annular sleeve 6 and the outer surface of the shell 1. The arrangement of the annular sleeve 6 can facilitate the quick installation and replacement of the heat dissipation wire 7. In order to ensure that the heat dissipation wires 7 are not easy to deform and can conduct heat quickly, the annular sleeve 6 and/or the heat dissipation wires 7 are made of copper or aluminum alloy.

Specifically, in order to further increase the heat dissipation capability of the housing 1, a heat absorption coating is coated on the upper surface of the housing 1, and the heat dissipation coating may be made of a heat dissipation silicone grease material.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel high-temperature high-frequency large-current capacitor comprises: outer shell (1), inner shell (4) and electrode slice (5), the inside at outer shell (1) is installed in inner shell (4), and the internally mounted of inner shell (4) has two-layer electrode slice (5) of mutual interval, and this two-layer electrode slice (5) are connected with positive pole pin (2) and negative pole pin (3) respectively, positive pole pin (2) and negative pole pin (3) pass inner shell (4) and outer shell (1) respectively in proper order and extend to the outside of outer shell (1), its characterized in that: the heat dissipation device is characterized by further comprising tubular heat dissipation wires (7), wherein two ends of each heat dissipation wire (7) are communicated with the inside of the outer shell (1), and heat conduction liquid (8) is filled between the outer surface of the outer shell (1) and the inner shell (4) and inside the heat dissipation wires (7).

2. A novel high-temperature high-frequency large-current capacitor as claimed in claim 1, wherein: the two layers of electrode plates (5) are mutually wound to form a cylinder shape, and the distances between the adjacent electrode plates (5) are equal.

3. A novel high-temperature high-frequency large-current capacitor as claimed in claim 1, wherein: and the anode pin (2) and/or the cathode pin (3) are connected with the outer shell (1) and the inner shell (4) through the connecting parts, and a leakage-proof ring is arranged.

4. A novel high-temperature high-frequency large-current capacitor comprises: outer shell (1), inner shell (4) and electrode slice (5), the inside at outer shell (1) is installed in inner shell (4), and the internally mounted of inner shell (4) has two-layer electrode slice (5) of mutual interval, and this two-layer electrode slice (5) are connected with positive pole pin (2) and negative pole pin (3) respectively, positive pole pin (2) and negative pole pin (3) pass inner shell (4) and outer shell (1) respectively in proper order and extend to the outside of outer shell (1), its characterized in that: still include annular cover (6) and heat dissipation silk (7), the both ends of heat dissipation silk (7) are connected and the inside of heat dissipation silk (7) and the inside switch-on of annular cover (6) with the upper and lower both ends of annular cover (6) respectively, and annular cover (6) and shell (1) swing joint, shell (1) surface and the internal surface of annular cover (6) all are equipped with the connector, and can interconnect between two kinds of connectors, between the surface of shell (1) and inner shell (4) and the inside of annular cover (6) and heat dissipation silk (7) all fill heat-conducting liquid (8).

5. A novel high-temperature high-frequency large-current capacitor as claimed in claim 4, wherein: the annular sleeve (6) is sleeved with the shell (1).

6. A novel high-temperature high-frequency large-current capacitor as claimed in any one of claims 1 to 5, wherein: the upper surface of the shell (1) is coated with a heat absorption coating.

7. A novel high-temperature high-frequency large-current capacitor as claimed in any one of claims 1 to 5, wherein: the heat dissipation wire (7) is made of copper or aluminum alloy.