Temperature controller with accurate tripping temperature

Abstract

The utility model provides a temperature controller with accurate tripping temperature, and particularly relates to the field of thermal protector production, which comprises a temperature controller body, and the side part of the temperature controller body is respectively provided with a fixing lug and a lead connecting lug; a heat dissipation plate is arranged on the upper portion of the temperature controller body, a plurality of strip-shaped heat dissipation fins are arranged at the upper end of the heat dissipation plate, the heat dissipation fins are arranged in a central symmetry mode, and a detachable structure is arranged between the heat dissipation plate and the temperature controller body. According to the utility model, the heat dissipation performance of the temperature controller can be improved, the sensitivity of the temperature controller is improved, and the control precision of tripping temperature is improved.

Description

Technical Field

[0001] The utility model belongs to the field of thermal protector production, and in particular relates to a temperature controller with precise tripping temperature. Background Art

[0002] Thermal tripping is a method of controlling the switch state of a device in a circuit. It is achieved by heating a head passing through a wire or conductor to increase its temperature, causing looseness in the circuit connected to the head, thereby achieving the connection or disconnection of the device.

[0003] The heat dissipation efficiency of the thermostat has a vital impact on the precise control of the tripping temperature of the thermostat. Excellent heat dissipation efficiency can greatly improve the sensitivity of the thermostat, thereby improving the control accuracy of the tripping temperature; the heat dissipation efficiency of the existing thermostat still needs to be further improved.

[0004] Patent application number CN200920020239.X discloses an air switch over-temperature detection automatic tripping device. When used in air switches, it can effectively prevent the insulating part of the switch from being burned or even causing a fire due to the increase in temperature of the switch contacts. However, its heat dissipation performance still needs to be improved.

[0005] In view of the above shortcomings, a thermostat with accurate tripping temperature is now needed, which can improve the heat dissipation performance of the thermostat, improve the sensitivity of the thermostat, and help improve the control accuracy of the tripping temperature. Utility Model Content

[0006] The utility model aims to provide a thermostat with accurate tripping temperature, which can improve the heat dissipation performance of the thermostat, improve the sensitivity of the thermostat, and help improve the control accuracy of the tripping temperature.

[0007] The utility model provides the following technical solutions:

[0008] A thermostat with precise tripping temperature, comprising a thermostat body, the sides of which are respectively provided with fixing ears and wire connecting ears; a heat sink is provided on the upper part of the thermostat body, a plurality of strip-shaped heat sink fins are provided on the upper part of the heat sink, the heat sink fins are arranged in a central symmetrical manner, and the heat sink and the thermostat body are detachable structures;

[0009] Preferably, the heat dissipation fin is S-shaped as a whole, the center of the heat dissipation fin is integrally formed and combined, and a screw hole is provided in the center of the heat dissipation fin.

[0010] Preferably, the heat dissipation fins and the heat dissipation plate are separable structures; and the upper end surface of the heat dissipation plate is provided with a limiting groove matching the heat dissipation fins.

[0011] Preferably, bolts penetrate through the screw holes to connect the heat sink, the heat sink fins and the thermostat body.

[0012] Preferably, a shaft sleeve is provided at the upper end of the thermostat body, and the bolt is threadedly connected to the shaft sleeve.

[0013] Preferably, a thermally conductive gasket is provided between the heat sink and the thermostat body.

[0014] Preferably, the thermally conductive gasket is made of silicone; the heat sink and the heat sink fins are made of copper.

[0015] Preferably, protrusions are respectively provided on the lower side of the heat sink and the upper end of the thermostat body, and grooves matching the protrusions are provided on both sides of the thermal conductive gasket.

[0016] Preferably, a cofferdam is provided at the lower edge of the heat dissipation plate, and the upper end of the thermostat body is embedded in the inner side of the cofferdam.

[0017] Preferably, a plurality of heat dissipation strips are arranged on the periphery of the thermostat body.

[0018] Beneficial effects of the utility model:

[0019] The device can increase the heat dissipation area through the heat dissipation fins on the heat dissipation plate, thereby improving the heat dissipation efficiency of the thermostat body, which is beneficial to improving the sensitivity of the thermostat and further improving the control accuracy of the tripping temperature.

[0020] The heat sink and the thermostat body of the device are detachable, which is convenient for replacement and maintenance and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is an overall schematic diagram;

[0023] Figure 2 It is an overall exploded diagram;

[0024] Figure 3 FIG. 2 is a diagram of a second embodiment;

[0025] Figure 4 It is a partial diagram of the second embodiment;

[0026] The markings in the figure are: 1. Thermostat body; 2. Fixing ear; 3. Wire connection ear; 4. Heat sink; 5. Cofferdam; 6. Heat sink fin; 7. Thermal pad; 8. Bushing; 9. Protrusion; 10. Groove; 11. Heat sink strip; 12. Screw hole; 13. Bolt; 14. Limiting groove. DETAILED DESCRIPTION

[0027] Example

[0028] like Figures 1 to 4A thermostat with precise tripping temperature comprises a thermostat body 1, which is a finished component that can function normally; a fixing ear 2 and a wire connecting ear 3 are respectively arranged on the side of the thermostat body 1; the above is the prior art and will not be repeated; a heat sink 4 is arranged on the upper part of the thermostat body 1, and a plurality of strip-shaped heat sink fins 6 are arranged on the upper end of the heat sink 4, and the heat sink fins 6 are arranged in a central symmetrical manner. The heat sink fins 6 arranged in a central symmetrical manner can greatly increase the heat dissipation area of ​​the thermostat body 1, thereby improving the heat dissipation efficiency, which is conducive to improving the sensitivity of the thermostat, and thereby improving the control accuracy of the tripping temperature; and the heat sink 4 and the thermostat body 1 are detachable structures, which are convenient for replacement and maintenance, and reduce costs;

[0029] In order to further increase the heat dissipation area, the heat dissipation fin 6 is in an S-shape as a whole. The center of the heat dissipation fin 6 is integrally formed to improve the strength and extend the service life. A screw hole 12 is provided in the center of the heat dissipation fin 6. The bolt 13 penetrates the screw hole 12 to connect the heat dissipation plate 4, the heat dissipation fin 7 and the thermostat body 1 to achieve a detachable connection. In order to fix firmly and not change the layout in the thermostat body 1, a sleeve 8 is provided at the upper end of the thermostat body 1. The bolt 13 is threadedly connected with the sleeve 8. The sleeve 8 and the thermostat body 1 can be an integrally formed structure. In order to further improve the heat dissipation efficiency, a heat conductive pad 7 is provided between the heat dissipation plate 4 and the thermostat body 1. The heat conductive pad 7 is made of silicone with excellent heat conductivity. The heat dissipation plate 4 and the heat dissipation fin 6 are made of copper with excellent heat conductivity. The lower side of the heat dissipation plate 4 and the upper end of the thermostat body 1 are respectively provided with protrusions 9, and grooves 10 matching the protrusions 9 are provided on both sides of the heat conductive pad 7. This can further increase the heat transfer area and help improve the stability of the fixation. In order to further improve stability and increase the heat transfer area, a cofferdam 5 is provided at the lower edge of the heat sink 4, and the upper end of the thermostat body 1 is embedded in the inner side of the cofferdam 5, and the cofferdam 5 and the heat sink 4 are an integrally formed structure.

[0030] Example

[0031] like Figures 2 to 4 On the basis of Example 1, the heat sink 6 and the heat sink 4 are separable structures; the upper end surface of the heat sink 4 is provided with a limit groove 14 matching the heat sink 6, and the combination of the heat sink 6 and the limit groove 14 can improve the reliability of the connection and be more conducive to heat dissipation; for more convenient installation, the heat sink 6 can be directly connected to the thermostat body 1, but omitting the heat sink 4 will reduce the stability of the heat sink 6 to a certain extent, which is not conducive to heat dissipation, so the heat sink 4 should be installed when necessary. A plurality of heat sink strips 11 are provided on the periphery of the thermostat body 1, and the heat sink strips 11 can be integrally formed with the thermostat body 1 and arranged in a ring around the periphery of the thermostat body 1.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thermostat with precise tripping temperature, characterized in that: It includes a thermostat body, and the sides of the thermostat body are respectively provided with fixing ears and wire connecting ears; a heat sink is provided on the upper part of the thermostat body, and a plurality of strip-shaped heat sink fins are provided on the upper end of the heat sink, the heat sink fins are arranged in a centrally symmetrical manner, and the heat sink and the thermostat body are detachable structures.

2. The thermostat with precise tripping temperature according to claim 1, characterized in that: The heat dissipation fin is S-shaped as a whole, the center of the heat dissipation fin is integrally formed and combined, and a screw hole is provided in the center of the heat dissipation fin; the bolt passes through the screw hole to connect the heat dissipation plate, the heat dissipation fin and the thermostat body.

3. A thermostat with precise tripping temperature according to claim 2, characterized in that: The heat dissipation fins and the heat dissipation plate are separable structures.

4. The thermostat with precise tripping temperature according to claim 3, characterized in that: The upper surface of the heat dissipation plate is provided with a limiting groove matching the heat dissipation fins.

5. The thermostat with precise tripping temperature according to claim 4, characterized in that: A shaft sleeve is arranged at the upper end of the thermostat body, and the bolt and the shaft sleeve are threadedly connected.

6. A thermostat with precise tripping temperature according to claim 5, characterized in that: A heat-conducting pad is provided between the heat sink and the thermostat body.

7. The thermostat with precise tripping temperature according to claim 6, characterized in that: The thermal pad is made of silicone; the heat sink and heat fins are made of copper.

8. The thermostat with precise tripping temperature according to claim 7, characterized in that: The lower side of the heat sink and the upper end of the thermostat body are respectively provided with protrusions, and grooves matching the protrusions are provided on both sides of the thermal conductive pad.

9. The thermostat with precise tripping temperature according to claim 8, characterized in that: A cofferdam is arranged on the lower edge of the heat dissipation plate, and the upper end of the thermostat body is embedded in the inner side of the cofferdam.

10. The thermostat with precise tripping temperature according to claim 1, characterized in that: A plurality of heat dissipation strips are arranged on the periphery of the thermostat body.

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