CN212342480U - Ultrahigh voltage electrolytic capacitor - Google Patents

Abstract

The utility model particularly discloses an ultra-high voltage electrolytic capacitor, include: a capacitor body having an electrode column; an inner case connected to an outer wall of the capacitor body; the outer shell is connected with the outer wall of the inner shell; a guard positioned between the inner shell and the outer shell; the protection device comprises a pressure detection assembly, an isolation layer and a heat conduction layer, the heat conduction layer is connected to the inner shell, the isolation layer is connected to the outer shell, and the pressure detection assembly is fixed between the isolation layer and the heat conduction layer. The utility model discloses an ultra-high voltage electrolytic capacitor is rational in infrastructure, detects the extreme pressure that the condenser received effectively, avoids the occurence of failure, protects capacitor body's safe handling effectively through isolation layer and heat-conducting layer simultaneously.

Description

Ultrahigh voltage electrolytic capacitor

Technical Field

The utility model relates to an electrolytic capacitor technical field, concretely relates to super high voltage electrolytic capacitor.

Background

Electrolytic capacitors are generally classified into aluminum electrolytic capacitors and tantalum electrolytic capacitors based on differences in their positive electrodes, in which a metal foil (aluminum/tantalum) is used as a positive electrode and an insulating oxide layer (aluminum oxide/tantalum pentoxide) of the metal foil is used as a dielectric. The negative electrode of the aluminum electrolytic capacitor is composed of a thin paper/film or an electrolytic polymer soaked with an electrolyte solution (liquid electrolyte); manganese dioxide is generally used as the negative electrode of tantalum electrolytic capacitors. Electrolytic capacitors are so named because they all use an electrolyte as the negative electrode (note and dielectric differentiation). Generally, the circuit plays roles of power supply filtering, decoupling, signal coupling and time constant setting, DC blocking and the like in a power supply circuit or an intermediate frequency and low frequency circuit. When the filter capacitor is used in a direct current power supply circuit, the anode (positive pole) of the filter capacitor is connected with the positive pole end of the power supply voltage, and the cathode (negative pole) of the filter capacitor is connected with the negative pole end of the power supply voltage, so that the filter capacitor cannot be reversely connected, otherwise, the filter capacitor can be damaged.

However, most of the conventional electrolytic capacitors have low self-protection coefficient, are easily extruded and suddenly deformed by the outside and even have accidents such as spontaneous explosion and the like, and have low safety performance.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the invention is to overcome the defects that the self-protection coefficient of the prior art is not high enough, the external extrusion is easy to deform suddenly, even accidents such as self-explosion can occur, and the safety performance is low, and provide the ultrahigh voltage electrolytic capacitor.

The above problems to be solved by the present invention are achieved by the following technical solutions:

an ultra-high voltage electrolytic capacitor comprising: a capacitor body having an electrode column; an inner case connected to an outer wall of the capacitor body; the outer shell is connected with the outer wall of the inner shell; a guard positioned between the inner shell and the outer shell; the protection device comprises a pressure detection assembly, an isolation layer and a heat conduction layer, the heat conduction layer is connected to the inner shell, the isolation layer is connected to the outer shell, and the pressure detection assembly is fixed between the isolation layer and the heat conduction layer.

Preferably, the pressure detection subassembly includes little control module, pressure sensor, mounting panel and warning light, the outside end at the heat-conducting layer is fixed to the mounting panel, pressure sensor connects the side at the mounting panel and is connected with the isolation layer contact, little control module fixes on the mounting panel and is connected with the pressure sensor electricity, the warning light is fixed on the recess of shell bottom. This scheme can detect the inside all pressure values of condenser fast through mutually supporting of little control module, pressure sensor, mounting panel and warning light, and the warning light takes place to remind when having reached the numerical value of setting for, avoids the emergence accident.

Preferably, the pressure detection assembly further comprises a storage battery, and the storage battery is connected to the mounting plate and electrically connected with the pressure sensor and the warning lamp. This scheme can provide electric power support for pressure sensor, warning light effectively through the battery, has ensured pressure detection's stability and has continued going on.

Preferably, the pressure detection assembly selects an upper subsection pressure detection assembly, a middle subsection pressure detection assembly and a lower subsection pressure detection assembly, and the upper subsection pressure detection assembly, the middle subsection pressure detection assembly and the lower subsection pressure detection assembly are all arranged in a triangular array. This scheme can carefully detect the pressure at which position of condenser bear too big more accurately through the pressure measurement subassembly of the multi-level installation of multiunit, can do many deals to the pertinence fast.

Preferably, the isolation layer is made of polyvinyl chloride materials or epoxy resin materials. This scheme can be separated capacitor body and outside to a certain extent effectively through polyvinyl chloride material or epoxy material, and the guarantee condenser uses safely and stably more.

Preferably, the heat conducting layer comprises a first honeycomb-shaped bump layer and a second honeycomb-shaped bump layer, the first bump layer is connected to the outer side wall of the inner shell, and the second bump layer is in contact connection with the first bump layer. This scheme can be with the inside heat rapid transfer heat dissipation of the condenser that the inner shell conduction came out through mutually supporting on first protruding piece layer and second protruding piece layer, and the guarantee condenser is in operation under the environment suitable relatively.

Preferably, each bump contact of the second bump layer is filled into a gap between adjacent bumps of the corresponding first bump layer. This scheme can realize fast heat transmission through the second lug layer and the first lug layer of certain reasonable installation setting to set up the lug through alternately can make heat dissipation wind mobile ground more many and even.

Preferably, a heat conduction cavity is arranged between the isolation layer and the heat conduction layer, and the surface of the shell is provided with ventilation meshes communicated with the heat conduction cavity. The heat that this scheme can further take away the condenser production again further diffusion through ventilation mesh and heat conduction cavity.

Has the advantages that: after the structure of the utility model is adopted, as the structure is provided with the capacitor body, the inner shell, the outer shell, the protective device, the pressure detection component, the isolation layer and the heat conduction layer, the heat inside the capacitor conducted out from the inner shell is quickly transmitted and radiated through the heat conduction layer, and the capacitor is ensured to operate in a relatively proper environment; the capacitor body is effectively separated from the outside through the isolating layer, so that the capacitor is ensured to be used more safely and stably; all pressure values in the capacitor can be quickly detected through the mutual matching of all parts of the pressure detection assembly, and when the set value is reached, the warning lamp reminds to avoid accidents; and further, the environment which is more suitable and stable can be better improved for the normal use of the capacitor.

Drawings

Fig. 1 is a sectional structural view of an ultra-high voltage electrolytic capacitor according to the present invention.

Fig. 2 is an enlarged structural view of a portion a of the ultra-high voltage electrolytic capacitor according to the present invention.

Fig. 3 is an enlarged structural view of part B of an ultra-high voltage electrolytic capacitor according to the present invention.

FIG. 1-3: 1-capacitor body; 2-inner shell; 3-a housing; 4-a pressure detection component; 5-an isolating layer; 6-heat conducting layer; 7-a storage battery; 8-a micro control module; 9-a pressure sensor; 10-mounting a plate; 11-warning light; 12-a groove; 13-ventilation mesh; 14-upper subsection pressure sensing assembly; 15-a mid-section pressure detection assembly; 16-lower section pressure sensing assembly; 17-a thermally conductive cavity; 18-a first bump layer; 19-second bump layer.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the invention in any manner.

Example 1:

an ultra-high voltage electrolytic capacitor as shown in fig. 1, comprising: a capacitor body 1, the capacitor body 1 having an electrode column; an inner case 2, the inner case 2 being connected to an outer wall of the capacitor body 1; the outer shell 3 is connected with the outer wall of the inner shell 2; a guard between the inner and outer shells 2, 3; the protector includes pressure measurement subassembly 4, isolation layer 5 and heat-conducting layer 6, heat-conducting layer 6 is connected on the 2 lateral walls of inner shell, isolation layer 5 is connected on the inside wall of shell 3, pressure measurement subassembly 4 is fixed between isolation layer 5 and heat-conducting layer 6.

Example 2:

1-2, the ultra-high voltage electrolytic capacitor comprises all the technical features of embodiment 1, wherein the pressure detection assembly 4 comprises a micro-control module 8, a pressure sensor 9, a mounting plate 10 and a warning lamp 11, the mounting plate 10 is fixed at the outer side end of the heat conduction layer 6, the pressure sensor 9 is connected at the side end of the mounting plate 10 and is in contact connection with the isolation layer 5, the micro-control module 8 is fixed on the mounting plate 10 and is electrically connected with the pressure sensor 9, and the warning lamp 11 is fixed on a groove 12 at the bottom of the housing 3; the pressure detection assembly 4 further comprises a storage battery 7, and the storage battery 7 is connected to the mounting plate 10 and is electrically connected with the pressure sensor 9 and the warning lamp 11; the pressure detection assembly 4 is composed of an upper subsection pressure detection assembly 14, a middle subsection pressure detection assembly 15 and a lower subsection pressure detection assembly 16, and the upper subsection pressure detection assembly 14, the middle subsection pressure detection assembly 15 and the lower subsection pressure detection assembly 16 are all composed of three parts and arranged in a regular triangle array.

Example 3:

the ultra-high voltage electrolytic capacitor shown in fig. 1-3 comprises all the technical features of the embodiment 1 or 2, wherein the isolating layer 5 is made of polyvinyl chloride material or epoxy resin material; the heat conduction layer 6 comprises a first honeycomb bump layer 18 and a second honeycomb bump layer 19, the first bump layer 18 is connected to the outer side wall of the inner shell 2, and the second bump layer 19 is connected with the first bump layer 18 in a contact mode; each bump contact of the second bump layer 19 is filled into a gap between adjacent bumps of the corresponding first bump layer 18; be equipped with heat conduction cavity 17 between isolation layer 5 and the heat-conducting layer 6, the surface of shell 3 is equipped with ventilation mesh 13 just ventilation mesh 13 is linked together with heat conduction cavity 17.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings and the terms "first", "second", only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 (8)

1. An ultra-high voltage electrolytic capacitor, comprising:

a capacitor body having an electrode column;

an inner case connected to an outer wall of the capacitor body;

the outer shell is connected with the outer wall of the inner shell;

a guard positioned between the inner shell and the outer shell; the protection device comprises a pressure detection assembly, an isolation layer and a heat conduction layer, the heat conduction layer is connected to the inner shell, the isolation layer is connected to the outer shell, and the pressure detection assembly is fixed between the isolation layer and the heat conduction layer.

2. The ultra-high voltage electrolytic capacitor of claim 1 wherein the pressure detection assembly comprises a micro-control module, a pressure sensor, a mounting plate and a warning light, the mounting plate is fixed at the outer side end of the heat conducting layer, the pressure sensor is connected at the side end of the mounting plate and is in contact connection with the isolation layer, the micro-control module is fixed on the mounting plate and is electrically connected with the pressure sensor, and the warning light is fixed on a groove at the bottom of the housing.

3. The ultra-high voltage electrolytic capacitor of claim 2 wherein the pressure detection assembly further comprises a battery, the battery is connected to the mounting plate and electrically connected to the pressure sensor and the warning light.

4. The ultra-high voltage electrolytic capacitor according to claim 1, wherein the pressure detection assemblies are selected from an upper subsection pressure detection assembly, a middle subsection pressure detection assembly and a lower subsection pressure detection assembly, and the upper subsection pressure detection assembly, the middle subsection pressure detection assembly and the lower subsection pressure detection assembly are all three and arranged in a triangular array.

5. The ultra-high voltage electrolytic capacitor of claim 1 wherein the isolation layer is made of polyvinyl chloride or epoxy.

6. The ultra-high voltage electrolytic capacitor of claim 1 wherein the thermally conductive layer comprises a first bump layer and a second bump layer in a honeycomb shape, the first bump layer is attached to the outer sidewall of the inner casing, and the second bump layer is in contact with the first bump layer.

7. The ultra-high voltage electrolytic capacitor of claim 6 wherein each bump contact of the second bump layer fills a gap between adjacent bumps of the corresponding first bump layer.

8. The ultra-high voltage electrolytic capacitor of claim 1 wherein a heat conducting cavity is provided between the insulating layer and the heat conducting layer, and wherein the surface of the housing is provided with a ventilation mesh and the ventilation mesh is in communication with the heat conducting cavity.

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