CN220272342U - Load switch capable of being cooled rapidly - Google Patents

Abstract

The utility model discloses a load switch capable of being cooled rapidly, which comprises a mounting frame and a fixed contact fixedly arranged on the mounting frame, wherein a clamping piece is arranged on the outer side of the fixed contact through a bolt, a supporting rod is arranged on one side of the clamping piece, the top of the supporting rod is fixedly connected with a radiating fin, an inward-sinking part is arranged on the outer side of the supporting rod, an arc-extinguishing grid sheet is arranged at the inward-sinking part, a heat conducting rod is arranged on the outer side of the arc-extinguishing grid sheet, a heat conducting block is integrally formed on the top of the heat conducting rod, and a heat conducting silica gel sheet is arranged on the top of the heat conducting block.

Description

Load switch capable of being cooled rapidly

Technical Field

The utility model relates to the technical field of load switches, in particular to a load switch capable of being cooled rapidly.

Background

A load switch is a switching device capable of switching on, carrying and off a current under normal circuit conditions and carrying a current for a prescribed time under a prescribed abnormal loop, and an arc extinguishing gate is a key component in the load switch for extinguishing an arc.

The arc-extinguishing grid piece of the existing load switch mostly only depends on self to dissipate heat, the heat dissipation capacity is weaker, however, the arc temperature is higher, the temperature of the arc-extinguishing grid piece is increased, the arc-extinguishing grid piece cannot rapidly dissipate heat, after short-time repeated arc extinction, the temperature of the arc-extinguishing grid piece is easily too high, the arc-extinguishing grid piece is accelerated to age, the service life is shortened, and even the arc cannot be effectively extinguished, so that other faults are caused.

Disclosure of Invention

The present utility model is directed to a load switch capable of rapid cooling, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a but quick refrigerated load switch, includes the mounting bracket and fixed mounting is in the static contact on the mounting bracket, the clamping piece is installed through the bolt in the outside of static contact, one side of clamping piece is equipped with the backing bar, the top fixedly connected with heat radiation fins of backing bar, the outside of backing bar is equipped with the invagination portion, arc extinguishing bars piece is installed to invagination portion department, the outside of arc extinguishing bars piece is equipped with the heat conduction pole, the top integrated into one piece of heat conduction pole has the heat conduction piece, the top of heat conduction piece is equipped with the heat conduction silica gel piece.

As a preferable scheme of the utility model, the outer side of the radiating fin is provided with a groove.

As a preferable scheme of the utility model, the arc extinguishing grid sheet is provided with a clamping block, and the inner wall of the inward sinking part is provided with a clamping groove matched with the clamping block.

As a preferable scheme of the utility model, the middle part of the top of the arc extinguishing grid sheet is provided with an avoidance groove.

As a preferable scheme of the utility model, the movable contact is arranged on the inner side of the mounting frame, one side of the mounting frame is fixedly connected with the grounding seat, and the grounding contact is arranged on the top of the grounding seat.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the heat on the arc-extinguishing grid sheet can be rapidly dissipated into the outside air through the heat conducting rod, the heat conducting silica gel sheet, the heat conducting block and the heat radiating fin, so that the heat radiating capability of the arc-extinguishing grid sheet is improved, the arc-extinguishing grid sheet is prevented from being excessively high in temperature, the arc-extinguishing grid sheet is aged rapidly, and even the arc cannot be effectively extinguished due to the fact that the arc-extinguishing grid sheet is possibly caused, and the reliability of the arc-extinguishing grid sheet is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a right side view of the present utility model;

FIG. 4 is an enlarged view of the utility model at B in FIG. 3;

fig. 5 is a schematic structural view of an arc extinguishing gate sheet according to the present utility model;

fig. 6 is a schematic structural view of the support rod of the present utility model.

In the figure: 1. a mounting frame; 2. a grounding seat; 3. a ground contact; 4. a moving contact; 5. a support bar; 6. a heat radiation fin; 7. a groove; 8. a clamping piece; 9. a stationary contact; 10. a heat conduction rod; 11. arc extinguishing grid plates; 12. a thermally conductive silicone sheet; 13. a heat conduction block; 14. an inward recess; 15. a clamping groove; 16. an avoidance groove; 17. and (5) clamping blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a but quick refrigerated load switch, including mounting bracket 1, and fixed mounting fixed contact 9 on mounting bracket 1, clamping piece 8 is installed through the bolt in the outside of fixed contact 9, one side of clamping piece 8 is equipped with support bar 5, the top fixedly connected with heat radiation fin 6 of support bar 5, the outside of support bar 5 is equipped with the indent portion 14, arc extinguishing bars 11 are installed to indent portion 14 department, the outside of arc extinguishing bars 11 is equipped with heat conduction pole 10, the top integrated into one piece of heat conduction pole 10 has heat conducting block 13, heat conducting pole 10 and heat conducting block 13 can give heat conduction on the heat extinguishing bars 11 heat radiation fin 6, heat radiation fin 6 gives out heat in the outside air fast, improve the heat dissipation ability of arc extinguishing bars 11, prevent that the heat extinguishing bars 11 temperature is too high for arc extinguishing bars 11 are ageing fast, even probably lead to the unable effective extinction of arc extinguishing bars 11, thereby ensure the reliability of arc extinguishing bars 11, the top of heat conducting block 13 is equipped with arc extinguishing bars 12, gap between heat conducting bars 13 and heat radiation fins 6, prevent that heat conducting bars from having good electric insulation effect between heat conducting bars 6, moreover, heat insulation effect is not can's the heat conducting bars is good, and heat insulation film is prevented.

The outer sides of the radiating fins 6 are provided with grooves 7, and the grooves 7 can increase the contact area between the radiating fins 6 and air, so that the radiating capacity of the radiating fins 6 is improved.

The arc extinguishing grid sheet 11 is provided with a clamping block 17, the inner wall of the inward sinking part 14 is provided with a clamping groove 15 matched with the clamping block 17, and the clamping block 17 is matched with the clamping groove 15 to fix the arc extinguishing grid sheet 11.

Wherein, the middle part at the top of arc extinguishing bars 11 is equipped with dodges the groove 16, dodges the groove 16 and is used for dodging the supporting rod 5, makes arc extinguishing bars 11 can insert in the invagination portion 14.

Wherein, moving contact 4 is installed to the inboard of mounting bracket 1, and one side fixedly connected with ground connection seat 2 of mounting bracket 1, ground contact 3 is installed at the top of ground connection seat 2, and ground contact 3 is used for carrying out the ground connection, improves the security.

Specifically, when installing arc extinguishing bars 11, take arc extinguishing bars 11 aim at the indent portion 14, insert in the indent portion 14 from bottom to top, draw-in groove 15 and fixture block 17 cooperation are fixed arc extinguishing bars 11, after arc extinguishing bars 11 are installed in place, heat conduction piece 13 and radiator fins 6 can extrude heat conduction silica gel piece 12, thereby ensure that heat conduction piece 13 and radiator fins 6 laminating are inseparable, after arc extinguishing bars 11 arc extinguishing, the heat conduction of arc extinguishing bars 11 gives heat conduction pole 10, heat conduction pole 10 gives heat conduction piece 13 with heat conduction, heat conduction piece 13 gives radiator fins 6 with heat conduction through heat conduction silica gel piece 12, radiator fins 6 gives out heat in the outside air, thereby avoid arc extinguishing bars 11 high temperature.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a load switch that can cool off fast, includes mounting bracket (1) and fixed mounting is in fixed contact (9) on mounting bracket (1), its characterized in that: clamping piece (8) are installed through the bolt in the outside of stationary contact (9), one side of clamping piece (8) is equipped with supporting rod (5), the top fixedly connected with heat radiation fins (6) of supporting rod (5), the outside of supporting rod (5) is equipped with invagination portion (14), arc extinguishing bars piece (11) are installed in invagination portion (14) department, the outside of arc extinguishing bars piece (11) is equipped with heat conduction rod (10), the top integrated into one piece of heat conduction rod (10) has heat conduction piece (13), the top of heat conduction piece (13) is equipped with heat conduction silica gel piece (12).

2. A rapidly coolable load switch as in claim 1 wherein: the outer sides of the radiating fins (6) are provided with grooves (7).

3. A rapidly coolable load switch as in claim 1 wherein: the arc extinguishing grid plate (11) is provided with a clamping block (17), and the inner wall of the inward sinking part (14) is provided with a clamping groove (15) matched with the clamping block (17).

4. A rapidly coolable load switch as in claim 1 wherein: the middle part at the top of the arc extinguishing grid sheet (11) is provided with an avoidance groove (16).

5. A rapidly coolable load switch as in claim 1 wherein: the movable contact (4) is installed to the inboard of mounting bracket (1), one side fixedly connected with ground connection seat (2) of mounting bracket (1), ground connection contact (3) are installed at the top of ground connection seat (2).