CN212516948U - Static contact for switch - Google Patents

Abstract

The utility model provides a static contact for switch, which relates to the technical field of electrical equipment and comprises an insulator and a static contact body, wherein a plurality of radiating fins are fixedly arranged on the upper end surface and the lower end surface of the static contact body, the radiating fins comprise a first radiating fin positioned at the upper end of the static contact body and a second radiating fin positioned at the lower end surface of the static contact body, cold air bins are respectively arranged inside the first radiating fin and the second radiating fin, one side of each radiating fin is provided with an air inlet, and one end of the static contact body close to the insulator is provided with an air conditioning conveying component, the heat dissipation is accelerated by the close contact of the first radiating fin and the second radiating fin with the static contact body, the air conditioning conveying component is matched with a temperature sensor, the air conditioning can be uniformly conveyed into the cold air bins with different radiating fins, the heat dissipation effect of the first, whole utility model makes the static contact body remain throughout and works under suitable temperature, guarantees the power consumption safety.

Description

Static contact for switch

Technical Field

The utility model relates to an electrical equipment technical field especially relates to a static contact for switch.

Background

The high-current switch equipment can well release and reduce the temperature of main conductive elements of the switch caused by overlarge current during the operation, particularly the heat dissipation problem of the conductive elements in a closed space, which is always the pain of the electric equipment in the operation.

In order to solve the heat dissipation problem of heavy current switchgear, current implementation scheme is mostly let switch conducting element natural cooling, makes the contact be in high temperature state for a long time like this to make electrical element's resistance increase, and influence switchgear's life, thereby can burn out switchgear because of electrical element is overheated when serious, cause the electrical accident, influence electric safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a static contact for switch to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: a static contact for a switch comprises an insulator and a static contact body, wherein the insulator is fixedly arranged at one end of the static contact body, a plurality of radiating fins are fixedly arranged on the upper end surface and the lower end surface of the static contact body respectively, the radiating fins comprise a first radiating fin positioned at the upper end of the static contact body and a second radiating fin positioned at the lower end surface of the static contact body, the first radiating fin and the second radiating fin are of the same structure, cold air bins are arranged inside the first radiating fin and the second radiating fin respectively, an air inlet is arranged at one side of each radiating fin, an air outlet is arranged at one side of each radiating fin far away from the air inlet, the air inlet and the air outlet are communicated with the cold air bins, a plurality of radiating holes are arranged at one side of each radiating fin far away from the static contact body, the radiating, and the static contact body is provided with a temperature sensor.

Preferably, the heat dissipation hole is not communicated with the cold air bin.

Preferably, first fin and second fin are the brass fin, and the equidistance evenly sets up.

Preferably, the air conditioning conveying assembly comprises a refrigeration fan, the refrigeration fan is fixedly mounted on the side wall of the static contact body, an air outlet is formed in the side wall of the refrigeration fan, a main air pipe is vertically mounted at the air outlet, an upper branch air pipe and a lower branch air pipe are horizontally mounted at two ends of the main air pipe, a plurality of connecting pipes are uniformly arranged on one sides, close to the static contact body, of the upper branch air pipe and the lower branch air pipe, and each connecting pipe corresponds to an air inlet of one cooling fin and is fixedly connected with the air inlet.

Preferably, a controller is installed between the refrigeration fan and the temperature sensor, the refrigeration fan and the controller are electrically connected.

Preferably, the air outlet is provided with a dust screen.

The utility model has the advantages that:

in the utility model, the first radiating fin and the second radiating fin are in close contact with the static contact body, so that the heat on the static contact body is transferred to the first radiating fin and the second radiating fin, the contact area between the heat and the air is larger, the heat dissipation is accelerated, the cold air conveying component is matched with the temperature sensor, the cold air can be automatically opened for cooling when the temperature of the static contact body is higher, the cold air can be uniformly sent to cold air bins with different radiating fins by the matching of the main air pipe, the upper branch air pipe and the lower branch air pipe, the heat dissipation effect of the first radiating fin and the second radiating fin is improved, the heat can be rapidly taken away, the heat exchange between the static contact body and the static contact body is accelerated, the whole utility model has simple structure, the static contact body can be rapidly cooled, and the static contact body can always work at a proper temperature, prevent the electrical accident, guarantee the power consumption safety, the practicality is high.

Drawings

Fig. 1 is a schematic perspective view of a static contact for a switch according to the present invention;

FIG. 2 is a schematic view of the structure of the heat sink of the present invention;

FIG. 3 is a schematic cross-sectional view of the heat sink of the present invention;

FIG. 4 is a schematic top view of the cooling air delivery assembly of the present invention;

reference numerals: 1. an insulator; 2. a static contact body; 3. a heat sink; 301. a first heat sink; 302. a second heat sink; 4. a cold gas bin; 5. an air inlet; 6. an air outlet; 7. heat dissipation holes; 8. a cold air delivery assembly; 801. a refrigeration fan; 802. an air outlet; 803. a main air duct; 804. an upper branch air pipe; 805. a lower branch air pipe; 806. a connecting pipe; 9. a temperature sensor.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, a static contact for a switch includes an insulator 1 and a static contact body 2, the insulator 1 is fixedly installed at one end of the static contact body 2, a plurality of heat sinks 3 are fixedly installed on both upper and lower end surfaces of the static contact body 2, each heat sink 3 includes a first heat sink 301 located at the upper end of the static contact body 2 and a second heat sink 302 located at the lower end surface of the static contact body 2, the first heat sink 301 and the second heat sink 302 have the same structure, a cold air bin 4 is respectively installed inside each of the first heat sink 301 and the second heat sink 302, an air inlet 5 is installed at one side of each heat sink 3, an air outlet 6 is installed at one side of each heat sink 3 away from the air inlet 5, the air inlet 5 and the air outlet 6 are both communicated with the cold air bin 4, a plurality of heat dissipation holes 7 are installed at one, and one end of the static contact body 2 close to the insulator 1 is provided with a cold air conveying assembly 8, and the static contact body 2 is provided with a temperature sensor 9.

The cold air conveying assembly 8 comprises a refrigeration fan 801, the refrigeration fan 801 is fixedly mounted on the side wall of the static contact body 2, an air outlet 802 is arranged on the side wall of the refrigeration fan 801, a main air pipe 803 is vertically mounted at the air outlet 802, an upper branch air pipe 804 and a lower branch air pipe 805 are horizontally mounted at two ends of the main air pipe 803, a plurality of connecting pipes 806 are uniformly arranged on one sides, close to the static contact body 2, of the upper branch air pipe 804 and the lower branch air pipe 805, and each connecting pipe 806 corresponds to an air inlet 5 of one cooling fin 3 and is fixedly connected with the air inlet 5.

The working principle is as follows:

in daily work, the first radiating fins 301 and the second radiating fins 302 are in close contact with the static contact body 2, so that heat on the static contact body 2 is transferred to the first radiating fins 301 and the second radiating fins 302, the contact area of the heat and air is larger, heat dissipation is accelerated, meanwhile, the radiating holes 7 are formed in the positions, corresponding to each other, of each radiating fin 3, air flowing between the radiating fins 3 is accelerated, and heat dissipation efficiency is improved.

After the static contact body 2 works for a long time, or when heat dissipation is slow due to high working environment temperature, the temperature sensor 9 will transmit a temperature signal to the controller at the first time, the controller will send an instruction to the cold air delivery assembly 8, at this time, the refrigeration fan 801 starts to work, cold air is transmitted from the air outlet 802 to the main air duct 803, and then reaches the upper branch air duct 804 and the lower branch air duct 805 from the main air duct 803, respectively, the cold air in the upper branch air duct 804 and the lower branch air duct 805 reaches the air inlet 5 of the heat dissipation fin 3 through different connection pipes 806, and finally reaches the cold air bin 4 inside the first heat dissipation fin 301 and the second heat dissipation fin 302, so as to directly cool the inside of each of the first heat dissipation fin 301 and the second heat dissipation fin 302, thereby improving the heat dissipation effect of the first heat dissipation fin 301 and the second heat dissipation fin 302 and simultaneously quickly taking heat away, the heat exchange between the static contact body 2 and the static contact body 2 is accelerated, and finally the air flow in the cold air bin 4 flows out from the air outlet 6, so that the whole circulation of the cold air flow is completed.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a static contact for switch, includes insulator (1) and static contact body (2), its characterized in that:

the insulator (1) is fixedly installed at one end of the static contact body (2), a plurality of radiating fins (3) are fixedly installed on the upper end face and the lower end face of the static contact body (2), each radiating fin (3) comprises a first radiating fin (301) located at the upper end of the static contact body (2) and a second radiating fin (302) located at the lower end face of the static contact body (2), the first radiating fin (301) and the second radiating fin (302) are identical in structure, a cold air bin (4) is arranged inside each first radiating fin (301) and each second radiating fin (302), an air inlet (5) is installed on one side of each radiating fin (3), an air outlet (6) is arranged on one side, far away from the air inlet (5), of each radiating fin (3), each air inlet (5) and each air outlet (6) are communicated with each cold air bin (4), a plurality of radiating holes (7) are formed in one side, far away from the, two adjacent louvre (7) on fin (3) align each other, air conditioning conveying component (8) are installed to static contact body (2) one end near insulator (1), install temperature sensor (9) on static contact body (2).

2. A stationary contact for a switch as claimed in claim 1, characterized in that: the heat dissipation holes (7) are not communicated with the cold air bin (4).

3. A stationary contact for a switch as claimed in claim 1, characterized in that: the first radiating fins (301) and the second radiating fins (302) are brass radiating fins and are uniformly arranged at equal intervals.

4. A stationary contact for a switch as claimed in claim 1, characterized in that: the cold air conveying assembly (8) comprises a refrigerating fan (801), the refrigerating fan (801) is fixedly installed on the side wall of the static contact body (2), an air outlet (802) is formed in the side wall of the refrigerating fan (801), a main air pipe (803) is vertically installed at the air outlet (802), an upper branch air pipe (804) and a lower branch air pipe (805) are horizontally installed at two ends of the main air pipe (803), a plurality of connecting pipes (806) are uniformly arranged on one sides, close to the static contact body (2), of the upper branch air pipe (804) and the lower branch air pipe (805), and each connecting pipe (806) corresponds to one air inlet (5) of one cooling fin (3) and is fixedly connected with the air inlet (5).

5. A stationary contact for a switch as claimed in claim 4, characterized in that: the controller is installed between the refrigeration fan (801) and the temperature sensor (9), the refrigeration fan (801) and the controller are electrically connected.

6. A stationary contact for a switch as claimed in claim 1, characterized in that: and a dust screen is arranged on the air outlet (6).

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