CN217715145U - Electric control device for realizing double protection functions and electric warmer - Google Patents
Electric control device for realizing double protection functions and electric warmer Download PDFInfo
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- CN217715145U CN217715145U CN202221658269.5U CN202221658269U CN217715145U CN 217715145 U CN217715145 U CN 217715145U CN 202221658269 U CN202221658269 U CN 202221658269U CN 217715145 U CN217715145 U CN 217715145U
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Abstract
The utility model discloses an realize electrically controlled device and electric room heater of duplicate protection function, first temperature controller concatenates between AC power supply and the input of vary voltage unit, the input of control chip is connected to the output of vary voltage unit, the output of control chip is connected with the input of first relay and the one end electricity of second temperature controller respectively, the output of first relay is connected with the fan electricity, the other end of second temperature controller is connected with the input electricity of a plurality of second relay respectively, the output of a plurality of second relay respectively one-to-one be connected with a plurality of electric heating element electricity; the trigger temperature of the first temperature controller is higher than that of the second temperature controller. The utility model discloses make the electric heater break down and make inside when overheated, can in time be with electric heating element's power disconnection.
Description
Technical Field
The utility model relates to an automatically controlled technical field specifically is an realize duplicate protection function's electrically controlled device and electric room heater.
Background
When the existing electric warmer is used, if faults such as air outlet blockage occur, the temperature inside the electric warmer can be continuously raised, and the inside of the electric warmer is easily overheated to cause fire.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an electrically controlled device and an electric heater that realize duplicate protection function is provided, it makes the electric heater break down and when making inside overheated, can in time be with electric heating element's power disconnection.
In order to solve the above technical problems, the electric control device for realizing the dual protection function provided by the present invention comprises a first temperature controller, a voltage transformation unit, a first relay, a fan, a second temperature controller, a plurality of second relays, a plurality of electric heating elements and a control chip;
the first temperature controller is connected in series between an alternating current power supply and the input end of the voltage transformation unit, the output end of the voltage transformation unit is connected with the input end of the control chip, the output end of the control chip is respectively and electrically connected with the input end of the first relay and one end of the second temperature controller, the output end of the first relay is electrically connected with the fan, the other end of the second temperature controller is respectively and electrically connected with the input ends of the plurality of second relays, and the output ends of the plurality of second relays are respectively and correspondingly electrically connected with the plurality of electric heating elements one by one;
the trigger temperature of the first temperature controller is higher than that of the second temperature controller.
The utility model provides an electric warmer, include electrically controlled device.
After the structure more than adopting, compared with the prior art, the utility model, have following advantage:
when the electric control device of the utility model is used, if the electric heater is in failure and the internal temperature rises, when the temperature reaches the trigger temperature of the second temperature controller, the second temperature controller is disconnected, so that the electric heating element is powered off, and the fan still continues to work at the moment, and the fan can quickly cool the inside of the electric heater; and if the second temperature controller breaks down and becomes invalid, then the second temperature controller can not be triggered, make the inside temperature of electric room heater still can continue to rise, when the temperature reaches the trigger temperature of first temperature controller, first temperature controller disconnection, make the power strip outage, thereby make the whole circuit outage of electric room heater, make the inside temperature of electric room heater reduce gradually, like this, first temperature controller and second temperature controller form duplicate protection, in order to avoid can't in time cut off the power supply of electric heating element when the second temperature controller became invalid, with effective protection electric room heater can not because overheated and the conflagration takes place.
Drawings
Fig. 1 is a schematic circuit configuration diagram of an electric control device of the embodiment;
fig. 2 is a schematic structural view of the electric warmer of the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the electric control device for realizing dual protection function of this embodiment includes a first temperature controller 10, a voltage transformation unit 20, a first relay 30, a blower 40, a second temperature controller 50, a plurality of second relays 60, a plurality of electric heating elements 70, and a control chip 80.
The first temperature controller 10 is connected in series between an alternating current power supply and an input end of the voltage transformation unit 20, an output end of the voltage transformation unit 20 is connected with an input end of the control chip 80, an output end of the control chip 80 is electrically connected with an input end of the first relay 30 and one end of the second temperature controller 50 respectively, an output end of the first relay 30 is electrically connected with the fan 40, the other end of the second temperature controller 50 is electrically connected with input ends of the plurality of second relays 60 respectively, and output ends of the plurality of second relays 60 are electrically connected with the plurality of electric heating elements 70 in a one-to-one correspondence mode respectively.
The triggering temperature of the first thermostat 10 is higher than that of the second thermostat 50.
The first thermostat 10 and the second thermostat 50 are both installed inside the electric warmer to detect the temperature inside the electric warmer.
When the electric control device normally works, the switch controls the first relay 30 and the second relay 60 to be conducted, at the moment, the fan 40 and the electric heating element 70 are both electrified to work, when the electric heater breaks down and the internal temperature continuously rises, the first temperature controller 10 and the second temperature controller 50 can detect the internal temperature of the electric heater in real time, and when the temperature reaches the trigger temperature of the second temperature controller 50, the second temperature controller 50 is disconnected, so that the electric heating element 70 is powered off, at the moment, the fan 40 still continues to work, and the fan 40 can quickly cool the interior of the electric heater; and if the second temperature controller 50 fails due to a fault, the second temperature controller 50 cannot be triggered, so that the temperature inside the electric warmer can still continuously rise, when the temperature reaches the trigger temperature of the first temperature controller 10, the first temperature controller 10 is disconnected, so that the power panel is powered off, the whole circuit of the electric warmer is powered off, and the internal temperature of the electric warmer is gradually reduced.
As shown in fig. 2, the electric warmer of the present embodiment includes a housing 100, the electric control device is disposed in the housing 100, a control panel 200 is disposed on the housing 100, and a switch is disposed on the control panel 200, and the on/off of the first relay 30 and the second relay 60 can be controlled by the switch.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, but should not be construed as limiting the claims, and the present invention is not limited to the above-described embodiments, but may be modified in various ways. In summary, all changes that can be made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (2)
1. An electric control device for realizing double protection functions is characterized by comprising a first temperature controller (10), a voltage transformation unit (20), a first relay (30), a fan (40), a second temperature controller (50), a plurality of second relays (60), a plurality of electric heating elements (70) and a control chip (80);
the first temperature controller (10) is connected in series between an alternating current power supply and the input end of the voltage transformation unit (20), the output end of the voltage transformation unit (20) is connected with the input end of the control chip (80), the output end of the control chip (80) is respectively and electrically connected with the input end of the first relay (30) and one end of the second temperature controller (50), the output end of the first relay (30) is electrically connected with the fan (40), the other end of the second temperature controller (50) is respectively and electrically connected with the input ends of the plurality of second relays (60), and the output ends of the plurality of second relays (60) are respectively and correspondingly electrically connected with the plurality of electric heating elements (70);
the trigger temperature of the first thermostat (10) is higher than the second thermostat (50).
2. An electric warmer, characterized by comprising an electric control device as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658269.5U CN217715145U (en) | 2022-06-29 | 2022-06-29 | Electric control device for realizing double protection functions and electric warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658269.5U CN217715145U (en) | 2022-06-29 | 2022-06-29 | Electric control device for realizing double protection functions and electric warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217715145U true CN217715145U (en) | 2022-11-01 |
Family
ID=83774687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221658269.5U Active CN217715145U (en) | 2022-06-29 | 2022-06-29 | Electric control device for realizing double protection functions and electric warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217715145U (en) |
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2022
- 2022-06-29 CN CN202221658269.5U patent/CN217715145U/en active Active
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