CN210516491U

CN210516491U - High temperature and high humidity resistant capacitor for power grid

Info

Publication number: CN210516491U
Application number: CN201921693430.0U
Authority: CN
Inventors: 丁佳佳; 杨振江; 杨引; 姜汉兵; 杨恩东; 邵国柱
Original assignee: Nantong Jianghai Energy Storage Technology Co ltd
Current assignee: Nantong Jianghai Energy Storage Technology Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-05-12
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a high temperature and high humidity resistant capacitor for electric wire netting, including metal casing, metal casing top fixed mounting has the apron, the vertical binding post of wearing to be equipped with of apron horizontal end, binding post bottom outward appearance wall is provided with the rupture disc, the metal casing inner chamber is provided with the electric capacity core, the electric capacity core passes through wire and rupture disc transmission connection, electric capacity core outward appearance wall has cup jointed and has supported the cover, it has the supporting shoe to support the interior table wall of cover through spring elastic connection. The utility model discloses in, through placing the electric capacity core in the supporting shoe, the supporting shoe in the supporting shoe can support the electric capacity core under the effect of spring, and the elastic potential energy cooperation supporting shoe through spring self has increased the antifatigue degree of electric capacity core to reduce the deformation degree of electric capacity core when receiving temperature variation, thereby improved power capacitor's life.

Description

High temperature and high humidity resistant capacitor for power grid

Technical Field

The utility model relates to a power capacitor technical field especially relates to a high temperature and humidity resistant condenser for electric wire netting.

Background

The power capacitor is used for a capacitor of a power system and electrical equipment, and any two metal conductors are separated by an insulating medium, so that the capacitor is formed. The capacitance of the capacitor is determined by the geometric dimension and the characteristics of the insulating medium between two polar plates, and when the capacitor is used under alternating voltage, the capacitance of the capacitor is often expressed by the reactive power of the capacitor, and the unit is poor or kilo-poor.

At present, the existing power capacitor still has some defects, firstly, the existing power capacitor is lack of a supporting device, when the external temperature of a core in the power capacitor changes, the core is easy to expand with heat and contract with cold, so that the fatigue resistance of the core is reduced, the electrolyte and the aluminum foil fall off, and the service life of the power capacitor is reduced; secondly, current power capacitor radiating effect is relatively poor, and thus power capacitor is at the during operation, thereby inside high temperature can not be produced in the inside core production a large amount of heats fast dissipation, and the high temperature can lead to the core function to be obstructed or metal casing inside pressure sharply increases and makes power capacitor explode to power capacitor's stability of using has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a high-temperature and high-humidity resistant capacitor for a power grid is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high temperature and high humidity resistant capacitor for electric wire netting, includes metal casing, metal casing top fixed mounting has the apron, the vertical binding post that wears to be equipped with of apron horizontal end, binding post bottom outward appearance wall is provided with the rupture disc, the metal casing inner chamber is provided with the electric capacity core, the electric capacity core passes through wire and rupture disc transmission connection, electric capacity core outward appearance wall has cup jointed and has supported the cover, it has the supporting shoe to support the interior table wall of cover through spring elastic connection, the supporting shoe all is provided with the multiunit with the spring, and multiunit supporting shoe and spring are the annular distribution supporting the interior table wall of cover.

As a further description of the above technical solution:

and fins are fixedly arranged between the metal shell and the support sleeve.

As a further description of the above technical solution:

a sealing lantern ring is fixedly installed between the wiring terminal and the cover plate, and pouring sealant is filled at the top of the inner cavity of the metal shell.

As a further description of the above technical solution:

the supporting block and the spring are embedded in the inner surface wall of the supporting sleeve.

As a further description of the above technical solution:

and a positioning ring is fixedly arranged at the axis of the bottom of the inner cavity of the metal shell.

As a further description of the above technical solution:

the fin is provided with the multiunit, and multiunit fin is vertical equidistance and distributes.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through placing the electric capacity core in the supporting shoe, the supporting shoe in the supporting shoe can support the electric capacity core under the effect of spring, and the elastic potential energy cooperation supporting shoe through spring self has increased the antifatigue degree of electric capacity core to reduce the deformation degree of electric capacity core when receiving temperature variation, thereby improved power capacitor's life.

2. The utility model discloses in, after electric capacity core combines with supporting the cover, the supporting shoe can combine with supporting the cover, and electric capacity core can with support the laminating of cover inner meter wall this moment, and the heat that the electric capacity core produced can transmit the fin through supporting the cover on, and the fin cooperation supports the cover and has increased the heat radiating area of electric capacity core with metal casing, has realized the quick heat dissipation of electric capacity core to avoid the electric capacity core to be obstructed because of the high temperature function, thereby improved the stability that power capacitor used.

Drawings

Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating a support sleeve and a capacitor core provided according to an embodiment of the present invention;

fig. 3 shows a schematic front view structure diagram provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a wiring terminal; 2. a cover plate; 3. pouring a sealant; 4. a metal housing; 5. a safety disc; 6. a wire; 7. a capacitor core; 8. a support sleeve; 9. a fin; 10. a sealing collar; 11. a support block; 12. a spring.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high temperature and high humidity resistant capacitor for electric wire netting, including

metal casing

4, 4 top fixed mounting of metal casing has

apron

2, 2 vertical the wearing and tearing of the horizontal end of apron are equipped with binding

post

1, 1 bottom exterior wall of binding post is provided with

safety piece

5, 4 inner chambers of metal casing are provided with electric capacity core 7, electric capacity core 7 passes through

wire

6 and 5 transmission connection of safety piece, 7 exterior walls of electric capacity core have cup jointed and have supported cover 8, it has supporting shoe 11 to support the interior table wall of cover 8 through spring 12 elastic connection, supporting shoe 11 all is provided with the multiunit with spring 12, and multiunit supporting shoe 11 and spring 12 are the annular distribution supporting the interior table wall of cover 8.

Specifically, as shown in fig. 1, a fin 9 is fixedly installed between the metal shell 4 and the support sleeve 8, heat generated by the capacitor core 7 is transferred to the fin 9 through the support sleeve 8, and the fin 9 cooperates with the support sleeve 8 and the metal shell 4 to increase the heat dissipation area of the capacitor core 7, thereby realizing rapid heat dissipation of the capacitor core 7.

Specifically, as shown in fig. 1, a sealing sleeve ring 10 is fixedly installed between the wiring terminal 1 and the cover plate 2, the top of the inner cavity of the metal shell 4 is filled with a pouring sealant 3, the insulation of the cover plate 2 and the wiring terminal 1 is realized through the sealing sleeve ring 10, and meanwhile, the pouring sealant 3 is matched to ensure the sealing performance of the capacitor, so that external moisture is prevented from permeating into the capacitor.

Specifically, as shown in fig. 2, the supporting block 11 and the spring 12 are embedded in the supporting sleeve 8, so that after the capacitor core 7 is combined with the supporting sleeve 8, the supporting block 11 is combined with the supporting sleeve 8, and at this time, the capacitor core 7 is attached to the supporting sleeve 8, so that the stability of the capacitor core 7 is ensured and heat can be rapidly transferred to the supporting sleeve 8.

Specifically, as shown in fig. 1, a positioning ring is fixedly installed at the axis of the bottom of the inner cavity of the metal shell 4, so that the capacitor core 7 can be quickly positioned when being installed.

Specifically, as shown in fig. 1, the fins 9 are provided with a plurality of groups, and the plurality of groups of fins 9 are distributed at equal intervals, so that the heat dissipation effect is ensured.

The working principle is as follows: when in use, the capacitor core 7 is placed in the supporting sleeve 8, the supporting block 11 in the supporting sleeve 8 can support the capacitor core 7 under the action of the spring 12, the elastic potential energy of the spring 12 is matched with the supporting block 11 to increase the fatigue resistance of the capacitor core 7, thereby reducing the deformation degree of the capacitor core 7 when the capacitor core is subjected to temperature change, prolonging the service life of the power capacitor, after the capacitor core 7 is combined with the supporting sleeve 8, the supporting block 11 is combined with the supporting sleeve 8, at the moment, the capacitor core 7 is attached to the inner surface wall of the supporting sleeve 8, the heat generated by the capacitor core 7 is transferred to the fins 9 through the supporting sleeve 8, the fins 9 are matched with the supporting sleeve 8 and the metal shell 4 to increase the heat dissipation area of the capacitor core 7, so that the rapid heat dissipation of the capacitor core 7 is realized, thereby avoiding the capacitor core 7 from being blocked due to high temperature, and improving the use stability of the power capacitor.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high temperature and high humidity resistant capacitor for electric wire netting, includes metal casing (4), its characterized in that, metal casing (4) top fixed mounting has apron (2), apron (2) horizontal end is vertical wears to be equipped with binding post (1), binding post (1) bottom outward appearance wall is provided with rupture disc (5), metal casing (4) inner chamber is provided with electric capacity core (7), electric capacity core (7) are through wire (6) and rupture disc (5) transmission connection, electric capacity core (7) outward appearance wall has cup jointed and has supported cover (8), it has supporting shoe (11) to support interior table wall of cover (8) through spring (12) elastic connection, supporting shoe (11) and spring (12) all are provided with the multiunit, and multiunit supporting shoe (11) and spring (12) are the annular distribution in supporting cover (8).

2. The high temperature and high humidity resistant capacitor for the power grid according to claim 1, wherein a fin (9) is fixedly installed between the metal shell (4) and the supporting sleeve (8).

3. The high temperature and high humidity resistant capacitor for the power grid according to claim 1, wherein a sealing collar (10) is fixedly installed between the connection terminal (1) and the cover plate (2), and a pouring sealant (3) is filled at the top of the inner cavity of the metal shell (4).

4. The high temperature and high humidity resistant capacitor for power grid as claimed in claim 1, wherein the supporting block (11) and the spring (12) are embedded in the inner surface wall of the supporting sleeve (8).

5. The high temperature and high humidity resistant capacitor for the power grid as claimed in claim 1, wherein a positioning ring is fixedly installed at the axis of the bottom of the inner cavity of the metal shell (4).

6. The high temperature and high humidity resistant capacitor for the power grid as claimed in claim 2, wherein the fins (9) are provided with a plurality of groups, and the plurality of groups of fins (9) are vertically and equidistantly distributed.