CN219873294U

CN219873294U - Cooling plate assembly for vacuum contactor

Info

Publication number: CN219873294U
Application number: CN202320217389.XU
Authority: CN
Inventors: 任浩
Original assignee: Wuxi Haibang Mechanics And Electric Appliance Manufacturing Co ltd
Current assignee: Wuxi Haibang Mechanics And Electric Appliance Manufacturing Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-10-20
Anticipated expiration: 2033-02-15

Abstract

The utility model relates to the technical field of cooling devices, and discloses a cooling disc assembly for a vacuum contactor, which comprises a heat conducting disc, wherein the heat conducting disc comprises a first end plane and a second end plane which are oppositely arranged, the first end plane is used for being in thermal conduction contact with the outer end face of a static contact piece of the vacuum contactor, and the second end plane is used for being in contact with a wiring row connected with the static contact piece; and the cooling pipe is detachably fixed on the heat conducting disc and used for cooling the heat conducting disc. A cooling disk subassembly for vacuum contactor can cool off vacuum switch tube of vacuum contactor, and then improves vacuum contactor's job stabilization nature and life.

Description

Cooling plate assembly for vacuum contactor

Technical Field

The utility model relates to the technical field of cooling devices, in particular to a cooling disc assembly for a vacuum contactor.

Background

In the related art, a vacuum contactor is generally composed of an insulating electricity isolating frame, a metal base, a transmission crank arm, an electromagnetic system, an auxiliary switch, a vacuum switch tube and other parts. When the electromagnetic coil of the electromagnetic system passes through the control voltage, the armature iron of the electromagnetic system drives the transmission crank arm to rotate, so that the moving contact in the vacuum switch tube is connected with the fixed contact, and after the electromagnetic coil is powered off, the moving contact is separated from the fixed contact due to the action of the separating spring.

However, the high frequency on-off of the moving contact and the fixed contact of the vacuum contactor easily causes the local temperature of the vacuum switch tube to be too high, thereby influencing the normal use and having poor working stability and service life.

Accordingly, there is a need to provide a cooling disk assembly for a vacuum contactor, which can cool a vacuum switching tube of the vacuum contactor, thereby improving the working stability and the service life of the vacuum contactor.

Disclosure of Invention

The utility model aims to provide a cooling disc assembly for a vacuum contactor, which can cool a vacuum switch tube of the vacuum contactor, thereby improving the working stability and the service life of the vacuum contactor.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a cooling plate assembly for a vacuum contactor, comprising:

the heat conducting disc comprises a first end plane and a second end plane which are oppositely arranged, the first end plane is used for being in thermal conduction contact with the outer end face of the static contact piece of the vacuum contactor, and the second end plane is used for being in contact with a wiring row connected with the static contact piece;

and the cooling pipe is detachably fixed on the heat conducting disc and used for cooling the heat conducting disc.

In some embodiments, the heat conducting disc is provided with an annular groove, and at least part of the cooling pipe is fixed in the annular groove in a limiting way.

In some embodiments, the heat conducting disc is in a shape of a cake, and the annular groove is arranged around the peripheral side wall of the heat conducting disc.

In some embodiments, the cooling tube comprises an inlet tube section, a curved tube section and an outlet tube section which are sequentially communicated, wherein the curved tube section is concavely arranged in the annular groove, and the inlet tube section and the outlet tube section respectively extend out of the annular groove.

In some embodiments, the direction of extension of the inlet pipe section and the outlet pipe section is perpendicular to the axial direction of the thermally conductive plate.

In some embodiments, the inlet pipe section and the outlet pipe section are disposed adjacent side-by-side in parallel spaced apart.

In some embodiments, the heat conducting plate is provided with a through hole, the through hole is used for a screw rod to pass through, and the screw rod is used for fastening and connecting the wiring row to the static contact piece.

In some embodiments, the through holes are multiple.

In some embodiments, the outer surface of the cooling pipe is convexly provided with a plurality of first heat conduction protrusions, the annular groove is internally provided with heat conduction pits corresponding to the first heat conduction protrusions one by one, and the outer surface of the first heat conduction protrusions is attached to the inner surface of the heat conduction pits.

In some embodiments, the cooling tube is provided with a plurality of second heat conductive protrusions protruding from an inner surface thereof.

The utility model has the beneficial effects that:

the cooling disc assembly for the vacuum contactor comprises a heat conducting disc, wherein the heat conducting disc comprises a first end plane and a second end plane which are oppositely arranged, the first end plane is used for being in thermal conduction contact with the outer end face of a static contact piece of the vacuum contactor, and the second end plane is used for being in contact with a wiring row connected with the static contact piece; the cooling pipe can be dismantled and be fixed in on the heat conduction dish, the cooling pipe is used for the cooling the heat conduction dish, and it can cool off the vacuum switch tube of vacuum contactor through the cooperation of heat conduction dish and cooling pipe, and then improves vacuum contactor's job stabilization nature and life.

Drawings

FIG. 1 is a schematic view of a cooling disk assembly for a vacuum contactor provided by the present utility model;

FIG. 2 is a schematic exploded view of a cooling disc assembly for a vacuum contactor provided by the present utility model;

fig. 3 is a schematic view of a cooling pan assembly for a vacuum contactor according to the present utility model for cooling the vacuum contactor.

In the figure:

100. a stationary contact; 200. a wiring row; 300. a screw; 400. a vacuum switching tube;

1. a heat conduction plate; 11. a first end plane; 12. a second end plane; 13. an annular groove; 14. a through hole; 15. a thermally conductive pit; 2. a cooling tube; 21. an inlet pipe section; 22. bending a pipe section; 23. an outlet pipe section; 24. the first heat conduction protrusion.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-3, an embodiment of the present utility model provides a cooling pan assembly for a vacuum contactor, which includes a heat conductive pan 1 and a cooling tube 2. The heat-conducting plate 1 comprises a first end plane 11 and a second end plane 12 which are oppositely arranged, wherein the first end plane 11 is used for being in thermal conduction contact with the outer end surface of the static contact piece 100 on the vacuum switch tube 400 of the vacuum contactor, and the second end plane 12 is used for being in contact with the wiring row 200 connected with the static contact piece 100; the cooling pipe 2 is detachably fixed on the heat conducting disc 1, and the cooling pipe 2 is used for cooling the heat conducting disc 1. The vacuum switch tube 400 of the vacuum contactor, particularly the static contact 100, can be cooled through the cooperation of the heat conducting disc 1 and the cooling tube 2, so that the working stability and the service life of the vacuum contactor are improved.

Referring to fig. 1-3, in some embodiments, the heat conducting plate 1 is provided with an annular groove 13, and at least part of the cooling tube 2 is fixed in the annular groove 13 in a limiting manner. The annular groove 13 plays a role in limiting and positioning, and meanwhile, the contact area between the heat conducting disc 1 and the cooling pipe 2 can be increased, and the heat conducting and radiating performance is improved.

Referring to fig. 1-3, in some embodiments, the heat conducting plate 1 is in a shape of a cake, and the annular groove 13 is formed on the peripheral side wall of the heat conducting plate 1 in a surrounding manner, so that the structure is simple, and the cooling tube 2 is convenient to assemble and disassemble on the heat conducting plate 1.

Referring to fig. 1-3, in some embodiments, the cooling tube 2 includes an inlet tube segment 21, a curved tube segment 22, and an outlet tube segment 23 that are sequentially connected, the curved tube segment 22 being recessed within the annular groove 13, and the inlet tube segment 21 and the outlet tube segment 23 respectively extending from the annular groove 13 to facilitate connection to other external pipes. The curved tube section 22 is mainly in contact with the annular groove 13 for conducting heat and cooling.

Referring to fig. 1-3, in some embodiments, the extending direction of the inlet pipe section 21 and the outlet pipe section 23 is perpendicular to the axial direction of the heat conducting plate 1, and the inlet pipe section 21 and the outlet pipe section 23 are directly led out along this direction, so that the structure is simple and the processing cost is low.

Referring to fig. 1-3, in some embodiments, the inlet pipe section 21 and the outlet pipe section 23 are arranged adjacently and in parallel at a side-by-side interval, so as to ensure that the inlet and outlet ports are led in the same area as much as possible, and the arrangement of the cooling pipes 2 in the vacuum contactor is more compact.

Referring to fig. 1 to 3, in some embodiments, the heat conducting disc 1 is provided with a through hole 14, the through hole 14 is used for the screw 300 to pass through, and the screw 300 is used for fastening the wiring board 200 to the static contact 100, so as to play a role in fixing a position, and prevent the heat conducting disc 1 from vibrating and falling due to loose clamping.

Referring to fig. 1-3, in some embodiments, there are a plurality of through holes 14, so that the heat conducting plate 1 can be prevented from rotating, and the position is fixed more firmly.

Referring to fig. 1-3, in some embodiments, a plurality of first heat conduction protrusions 24 are protruding on the outer surface of the cooling tube 2, heat conduction pits 15 corresponding to the first heat conduction protrusions 24 one by one are provided in the annular groove 13, and the outer surface of the first heat conduction protrusion 24 is attached to the inner surface of the heat conduction pit 15, so that the contact area can be further increased, and the heat conduction and dissipation performance can be improved.

Referring to fig. 1 to 3, in some embodiments, the inner surface of the cooling tube 2 is convexly provided with a plurality of second heat conduction protrusions, so that the contact heat conduction area between the inner wall of the cooling tube 2 and the internal cooling liquid can be increased, and the overall heat dissipation performance and effect can be improved in a manner of heat release of the protrusions.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

1. A cooling disk assembly for a vacuum contactor, comprising:

the heat conducting disc (1) comprises a first end plane (11) and a second end plane (12) which are oppositely arranged, wherein the first end plane (11) is used for being in thermal conduction contact with the outer end face of a static contact piece (100) of the vacuum contactor, and the second end plane (12) is used for being in contact with a wiring row (200) connected with the static contact piece (100);

and the cooling pipe (2) is detachably fixed on the heat conducting disc (1) and is used for cooling the heat conducting disc (1).

2. Cooling disc assembly for a vacuum contactor according to claim 1, characterized in that the heat conducting disc (1) is provided with an annular groove (13), at least part of the cooling tube (2) being fixed in the annular groove (13) in a limited manner.

3. Cooling disk assembly for a vacuum contactor according to claim 2, wherein the heat conducting disk (1) is in the shape of a circular cake, and the annular groove (13) is circumferentially arranged on the peripheral side wall of the heat conducting disk (1).

4. A cooling disc assembly for a vacuum contactor according to claim 3, wherein the cooling tube (2) comprises an inlet tube section (21), a curved tube section (22) and an outlet tube section (23) which are in communication in sequence, the curved tube section (22) being recessed in the annular groove (13), the inlet tube section (21) and the outlet tube section (23) respectively protruding from the annular groove (13).

5. Cooling disk assembly for a vacuum contactor according to claim 4, wherein the direction of extension of the inlet pipe section (21) and the outlet pipe section (23) is perpendicular to the axial direction of the heat conducting disk (1).

6. A cooling pan assembly for a vacuum contactor according to claim 5, characterised in that the inlet pipe section (21) and the outlet pipe section (23) are arranged adjacent side by side in parallel spaced apart relation.

7. Cooling disc assembly for vacuum contactors according to any of claims 1-6, characterized in that the heat conducting disc (1) is provided with through holes (14), which through holes (14) are used for the passage of screws (300) and which screws (300) are used for fastening connection bars (200) to the stationary contact (100).

8. A cooling disc assembly for a vacuum contactor according to claim 7, wherein there are a plurality of said through holes (14).

9. A cooling plate assembly for a vacuum contactor according to any one of claims 2-6, wherein a plurality of first heat conducting protrusions (24) are convexly arranged on the outer surface of the cooling tube (2), heat conducting pits (15) corresponding to the first heat conducting protrusions (24) one by one are formed in the annular groove (13), and the outer surface of the first heat conducting protrusions (24) is attached to the inner surface of the heat conducting pits (15).

10. Cooling disc assembly for vacuum contactors according to claim 9, characterized in that the inner surface of the cooling tube (2) is convexly provided with a plurality of second heat-conducting protrusions.