CN210325677U - Fusing type temperature controller in electric heating system - Google Patents
Fusing type temperature controller in electric heating system Download PDFInfo
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- CN210325677U CN210325677U CN201920778445.0U CN201920778445U CN210325677U CN 210325677 U CN210325677 U CN 210325677U CN 201920778445 U CN201920778445 U CN 201920778445U CN 210325677 U CN210325677 U CN 210325677U
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Abstract
The utility model discloses a fuse-type temperature controller among electric heating system relates to the temperature controller field, include: the temperature control device comprises a metal box and a square-shell type temperature fuse internally provided with organic compound temperature sensing particles; the square-shell type temperature fuse is arranged inside the metal box, and heat-conducting silica gel is filled between the square-shell type temperature fuse and the metal box; an fusible alloy wire is connected between two pins of the square-shell type temperature fuse, and special resin is coated outside the fusible alloy wire; the side surface of the metal box is provided with a wire outlet hole for leading out a temperature controller connecting wire connected with the square-shell type temperature fuse; the two sides of the metal box are fixed with mounting lugs which are used for fixedly mounting the fusing type temperature controller at the temperature transfer position of the outer wall of the container. When the safety temperature controller fails, the heating device does not work normally or other reasons cause overheating, the temperature fuse of the fusing type temperature controller is automatically fused, and the circuit is cut off permanently, so that the safety accident is avoided, and the safety during live overhaul and maintenance operation is improved.
Description
Technical Field
The utility model belongs to the technical field of the temperature controller and specifically relates to a fuse-type temperature controller among electric heating system.
Background
The electric heating device is generally provided with a heating protection device in a main loop, and the heating protection device is physically deformed inside the switch according to the temperature change of the working environment, so that certain special effects are generated, and the on-off action is generated. In the conventional design, the number of high-voltage loops is large, and the safety is low during live-line overhaul and maintenance operation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem and technical demand, a fuse-type temperature controller among electric heating system is proposed.
The technical scheme of the utility model as follows:
a fused thermostat in an electrical heating system, comprising: the temperature control device comprises a metal box and a square-shell type temperature fuse internally provided with organic compound temperature sensing particles;
the square shell type temperature fuse is arranged inside the metal box, and heat-conducting silica gel is filled between the square shell type temperature fuse and the metal box;
an fusible alloy wire is connected between two pins of the square shell type temperature fuse, and special resin is coated outside the fusible alloy wire;
a wire outlet hole is formed in the side face of the metal box and used for leading out a temperature controller connecting wire connected with the square-shell type temperature fuse;
and mounting lugs are fixed on two sides of the metal box and used for fixedly mounting the fusing type temperature controller at a temperature transfer position on the outer wall of the container.
The further technical scheme is as follows: the fusing temperature controller is arranged in the system heating loop, and the safety temperature controller is arranged in the control loop.
The further technical scheme is as follows: the temperature set value of the fusing temperature controller is higher than that of the safety temperature controller.
The utility model has the beneficial technical effects that:
experience the heat current through the fuse-type temperature controller, when safe temperature controller became invalid, heating device abnormal work or other reasons led to when overheated, the automatic fusing of temperature fuse of fuse-type temperature controller, and the circuit is cut off permanently to avoid incident's emergence, improve the security when electrified maintenance operation.
Drawings
Fig. 1 is a schematic view of a fusing type temperature controller in an electric heating system according to an embodiment of the present invention.
Fig. 2 is a schematic view of a fusing thermostat in an electric heating system according to another embodiment of the present invention.
Fig. 3 is a schematic view of a fusing type temperature controller in an electric heating system according to another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the fusing type temperature controller, the safety temperature controller, and the heating circuit according to an embodiment of the present invention.
Fig. 5 is a circuit diagram of the fusing type temperature controller, the safety temperature controller, and the heating circuit according to an embodiment of the present invention.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
Referring collectively to fig. 1-3, there is shown a schematic diagram of a fused thermostat in an electric heating system, the fused thermostat 10 comprising: a metal box 11 and a square-shell type thermal fuse 12 with temperature sensing particles of organic compounds built in.
The square-shell type temperature fuse 12 is arranged inside the metal box 11, and heat-conducting silica gel 13 is filled between the square-shell type temperature fuse 12 and the metal box 11; an fusible alloy wire is connected between two pins of the square-shell type temperature fuse 12, and special resin is coated outside the fusible alloy wire; the side surface of the metal box 11 is provided with a wire outlet hole 14 for leading out a temperature controller connecting wire 15 connected with the square shell type temperature fuse 12; the two sides of the metal box 11 are fixed with mounting lugs 16 for fixedly mounting the fusing type temperature controller 10 at the temperature transmission position of the outer wall of the container.
The fusing type temperature controller can better sense heat flow under the action of the organic compound temperature sensing particles through the outer wall of the metal box 11 and the heat conducting silica gel 13.
A section of fusible metal wire is connected between two pins of the square-shell type temperature fuse, special resin coats the fusible metal wire, current can flow from one pin to the other pin, when the temperature around the temperature fuse rises to the action temperature, the fusible metal wire is melted and is contracted into a ball shape under the action of surface tension and the help of the special resin to be attached to the tail ends of the two pins, and therefore a circuit is cut off permanently.
Optionally, the fusing temperature controller is installed in the system heating loop, and the safety temperature controller is installed in the control loop. The temperature setting value of the fusing temperature controller is higher than that of the safety temperature controller.
The on and off of the electric heating device is controlled by a temperature controller in the system, wherein a plurality of stages are arranged. The safety thermostat is usually installed in the control loop, and the fuse thermostat is installed in the system heating loop, and the temperature setting value of the fuse thermostat is higher than that of the safety thermostat, so that the circuit is protected in time when the safety thermostat is out of work. When the internal temperature of the storage medium is lower than the temperature set value of the safety temperature controller, the electric heating device is automatically activated to heat the container, and when the temperature of the medium in the container is higher than the temperature set value of the safety temperature controller, the electric heating device stops heating. Under special conditions, the safety temperature controller fails, the electric heating device will heat all the time until the temperature reaches the temperature set value of the temperature fuse of the fusing temperature controller, and the fusing temperature controller will cut off the heating main loop to prevent the electric heating device from working all the time.
As shown in fig. 4, the safety thermostat 20 is installed between the fusing thermostat 10 and the heating circuit 30, and referring to fig. 5 in combination, the heating circuit 30 includes a plurality of heating paths, each of which includes a contactor 31 for controlling on/off and a heating pipe 32 generating heat.
Through setting up the fuse-type temperature controller, increase the security when taking some to overhaul the maintenance operation to control circuit voltage is low, the electric current is little, is favorable to increasing the contact life of sensor, and the protection when fuse-type temperature controller is even as the relay contact in the major loop, more is applicable to the heating circuit.
The embodiment of the utility model provides an in the embodiment of fuse-type temperature controller belong to unrecoverable type temperature controller, when heating device abnormal work or lead to overheated because of other reasons, built-in temperature fuse automatic fusing even peripheral temperature decline circuit can not switch on again, connects fuse-type temperature controller in the heating major loop, can avoid the emergence of incident.
What has been described above is only the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.
Claims (3)
1. A fused thermostat in an electrical heating system, comprising: the temperature control device comprises a metal box and a square-shell type temperature fuse internally provided with organic compound temperature sensing particles;
the square shell type temperature fuse is arranged inside the metal box, and heat-conducting silica gel is filled between the square shell type temperature fuse and the metal box;
an fusible alloy wire is connected between two pins of the square shell type temperature fuse, and special resin is coated outside the fusible alloy wire;
a wire outlet hole is formed in the side face of the metal box and used for leading out a temperature controller connecting wire connected with the square-shell type temperature fuse;
and mounting lugs are fixed on two sides of the metal box and used for fixedly mounting the fusing type temperature controller at a temperature transfer position on the outer wall of the container.
2. The fused thermostat of claim 1, wherein the fused thermostat is installed in a system heating circuit, and the safety thermostat is installed in a control circuit.
3. The fusing thermostat of the electric heating system of claim 2, wherein a temperature set value of the fusing thermostat is higher than a temperature set value of the safety thermostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778445.0U CN210325677U (en) | 2019-05-27 | 2019-05-27 | Fusing type temperature controller in electric heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778445.0U CN210325677U (en) | 2019-05-27 | 2019-05-27 | Fusing type temperature controller in electric heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210325677U true CN210325677U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920778445.0U Active CN210325677U (en) | 2019-05-27 | 2019-05-27 | Fusing type temperature controller in electric heating system |
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| CN (1) | CN210325677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951935A (en) * | 2022-06-06 | 2022-08-30 | 广东德沁电器有限公司 | Temperature controller and manufacturing method thereof |
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2019
- 2019-05-27 CN CN201920778445.0U patent/CN210325677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951935A (en) * | 2022-06-06 | 2022-08-30 | 广东德沁电器有限公司 | Temperature controller and manufacturing method thereof |
| CN114951935B (en) * | 2022-06-06 | 2023-08-29 | 广东德沁电器有限公司 | Temperature controller and manufacturing method thereof |
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