CN221200303U - Temperature control circuit - Google Patents
Temperature control circuit Download PDFInfo
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- CN221200303U CN221200303U CN202323322207.4U CN202323322207U CN221200303U CN 221200303 U CN221200303 U CN 221200303U CN 202323322207 U CN202323322207 U CN 202323322207U CN 221200303 U CN221200303 U CN 221200303U
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- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 230000008054 signal transmission Effects 0.000 claims abstract description 4
- 238000002955 isolation Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 9
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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Abstract
The application relates to the technical field of electric cookers, in particular to a temperature control circuit, which comprises a heating module and a first power supply module, wherein the first power supply module is used for supplying power to the heating module to generate heat and comprises a control module, a second power supply module, a trigger switch module and a temperature detection module; the first power supply module is electrically connected with the control module, the signal transmission end of the temperature detection module is electrically connected with the control module, the power supply end of the control module and the power supply end of the temperature detection module are electrically connected with the second power supply module, one end of the trigger switch module is electrically connected with the power supply end of the temperature detection module, and the other end of the trigger switch module is electrically connected with the grounding end. The application has the effect of detecting the temperature and accurately controlling the temperature.
Description
Technical Field
The application relates to the technical field of electric rice cookers, in particular to a temperature control circuit.
Background
With the rapid development of household appliances, the electric rice cooker is widely used as a multifunctional cooker. The electric cooker not only can cook food, but also can keep the temperature, and is a very convenient modern cooker.
In the related art, an electric cooker generally comprises a cooker body, an electric heating element, a timing device and the like, and the timing device is used for timing to control the working time and the working time period of the electric heating element, so that the electric heating element generates heat to heat the cooker body, and further food is cooked.
However, the working time and the working time period of the heating element are set by using the timing device, so that the temperature of the pot body cannot be obtained practically, and the temperature change is difficult to control accurately.
Disclosure of utility model
In order to be able to detect the temperature and thus accurately control the temperature, the application provides a temperature control circuit.
The temperature control circuit provided by the application adopts the following technical scheme:
The temperature control circuit comprises a heating module and a first power supply module, wherein the first power supply module is used for supplying power to the heating module to generate heat and comprises a control module, a second power supply module, a trigger switch module and a temperature detection module;
The first power supply module is electrically connected with the control module, the signal transmission end of the temperature detection module is electrically connected with the control module, the power supply end of the control module and the power supply end of the temperature detection module are electrically connected with the second power supply module, one end of the trigger switch module is electrically connected with the power supply end of the temperature detection module, and the other end of the trigger switch module is electrically connected with the grounding end.
Through adopting above-mentioned technical scheme, trigger switch module is triggered the back, the second power module can be for temperature detection module power supply, temperature detection module detects the temperature and to control module send the temperature signal, control module receives the temperature signal and converts into actual temperature value, then with actual temperature value and preset temperature value contrast, when actual temperature value is greater than preset temperature value, control module control first power module stops for the heating module power supply, so that the temperature can reduce, when actual temperature value rains preset temperature value, control module control first power module is the heating module power supply, so that heating module work produces heat, thereby realize the raise temperature. The temperature can be detected and the heating module can be controlled based on temperature adjustment, so that the temperature can be controlled more accurately.
Optionally, the trigger switch module is a reed switch.
By adopting the technical scheme, the reed switch has simple structure, high stability and low cost.
Optionally, the temperature detection module is a temperature sensor.
Optionally, a recoverable fuse is connected in series between the heating module and the first power supply module.
Through adopting above-mentioned technical scheme, if the condition such as short circuit appears in the heating module, the electric current in the circuit can be very big this moment, can resume the fuse and can appear the high resistance state this moment, can nearly realize the effect of short circuit to reduce the user and by the possibility of electricity, play the guard action, improve the security.
Optionally, an isolation module is disposed between the control module and the first power supply module.
Through adopting above-mentioned technical scheme, the voltage of first power module is high, and the voltage of control module department is low, if abnormal situation appears, leads to control module department to insert first power module's high voltage, and control module can damage this moment, so in order to reduce control module damage's possibility, has set up isolation module, utilizes isolation module to keep apart high voltage part and low voltage part.
Optionally, the isolation module is an optical coupler, the control module is electrically connected to an input end of the optical coupler, and an output end of the optical coupler is connected to the first power supply module.
Through adopting above-mentioned technical scheme, utilize the optocoupler, can enough normal transmission control module's control signal, can also keep apart control module and first power module to reduce control module and insert the possibility of high voltage, and then improve the security, play the guard action to control module.
Optionally, the detection end of the control module is electrically connected to the power supply end of the temperature detection module, and is used for detecting the level signal of the power supply end of the temperature detection module, and the control module is further electrically connected with an alarm module.
Through adopting above-mentioned technical scheme, control module utilizes the level that the power supply end that detects temperature detection module can detect temperature detection module, and the level of power supply end is high level, but control module can't receive the temperature signal that temperature detection module sent, then judges that temperature detection module appears unusual at this moment, can't normally detect temperature, so control module control alarm device reports to the police this moment, has played the suggestion effect to the user.
Optionally, the control module is further electrically connected with an indicator light module.
By adopting the technical scheme, after the temperature detection module is abnormal and can not detect the temperature, the control module controls the indicator lamp module to be switched into abnormal lamplight, so that the working condition is indicated, and the prompting function is achieved.
In summary, the present application includes at least one of the following beneficial technical effects:
After the trigger switch module is triggered, the second power supply module can supply power for the temperature detection module, the temperature detection module detects temperature and sends a temperature electric signal to the control module, the control module receives the temperature electric signal and converts the temperature electric signal into an actual temperature value, then the actual temperature value is compared with a preset temperature value, when the actual temperature value is larger than the preset temperature value, the control module controls the first power supply module to stop supplying power for the heating module so that the temperature can be reduced, and when the actual temperature value rains the preset temperature value, the control module controls the first power supply module to supply power for the heating module so that the heating module works to generate heat, and therefore the temperature is increased. The temperature can be detected and the heating module can be controlled based on temperature regulation, so that the temperature can be controlled more accurately;
If the heating module has short circuit and other conditions, the current in the circuit is large, the recoverable fuse can be in a high-resistance state at the moment, and the short circuit effect can be nearly realized, so that the possibility of being electrified by a user is reduced, the protection effect is realized, and the safety is improved;
The voltage of the first power supply module is high, the voltage of the control module is low, if abnormal conditions occur, the control module is connected to the high voltage of the first power supply module, and the control module is damaged at the moment, so that the possibility of damage of the control module is reduced, an isolation module is arranged, and the high voltage part and the low voltage part can be isolated by the aid of the isolation module.
Drawings
Fig. 1 is a block diagram of an electronically controlled connection of an overall embodiment of the present application.
Reference numerals illustrate: 1. a heating module; 2. a first power supply module; 3. a control module; 4. a second power supply module; 5. triggering a switch module; 6. a temperature detection module; 7. a recoverable fuse; 8. an isolation module; 9. an alarm module; 10. and an indicator light module.
Detailed Description
The present application will be described in further detail with reference to fig. 1.
The embodiment of the application discloses a temperature control circuit. Referring to fig. 1, a temperature control circuit includes a heating module 1, a first power supply module 2, a control module 3, a second power supply module 4, a trigger switch module 5, and a temperature detection module 6; the first power supply module 2 is electrically connected to the control module 3, the signal transmission end of the temperature detection module 6 is electrically connected to the control module 3, the power supply end of the control module 3 and the power supply end of the temperature detection module 6 are both electrically connected to the second power supply module 4, one end of the trigger switch module 5 is electrically connected to the power supply end of the temperature detection module 6, and the other end of the trigger switch module 5 is electrically connected to the ground.
When the trigger switch module 5 is not triggered, the trigger switch module 5 is closed at this time, and the second power supply module 4 is in a grounded state, that is, the temperature detection module 6 is not powered, so that the temperature detection module 6 does not work at this time. When the trigger switch module 5 is triggered, the trigger switch module 5 is disconnected at this time, the second power supply module 4 supplies power to the temperature detection module 6, the temperature detection module 6 works at this time, the temperature detection module 6 detects temperature and sends a temperature electric signal to the control module 3, and the control module 3 receives the temperature electric signal and converts the temperature electric signal into an actual temperature value. The control module 3 controls whether the first power supply module 2 supplies power to the heating module 1 by judging whether the actual temperature value is greater than a preset temperature value, so that the actual temperature can be kept in an expected range as far as possible. By detecting the actual temperature, the heating module 1 is better adjusted and controlled to control the heating temperature, and the temperature is more accurately controlled.
The trigger switch module 5 can be a reed switch; the temperature detection module 6 can select a temperature sensor, the specific model of the reed switch and the temperature sensor is not limited, and the use requirement can be met and the corresponding effect can be achieved.
The recoverable fuse 7 is connected in series between the heating module 1 and the first power supply module 2, the recoverable fuse 7 plays a role in protection, when the heating module 1 is short-circuited, the circuit current can be large, and at the moment, the recoverable fuse 7 can form a high-resistance state due to large current, so that the circuit is limited to play a role in protection.
Referring to fig. 1, an isolation module 8 is disposed between a control module 3 and a first power supply module 2, the voltage of the first power supply module 2 is large, the voltage at the control module 3 is small, if the isolation module 8 is not disposed, abnormal conditions such as short circuit occur in a circuit, and the control module 3 is damaged due to the large voltage being connected, so that the disposed isolation module 8 can avoid the occurrence of the above conditions, thereby playing a role of protection.
The isolation module 8 may be an optical coupler, and the control module 3 is electrically connected to an input end of the optical coupler, and an output end of the optical coupler is electrically connected to the first power supply module 2. The optocoupler is prior art and the principle of the optocoupler is not described here in detail.
Referring to fig. 1, the detection end of the control module 3 is electrically connected to the power supply end of the temperature detection module 6, and the control module 3 is further electrically connected to the alarm module 9. The detection end of the control module 3 can detect the level signal of the power supply end of the temperature detection module 6, namely when the trigger switch module 5 is turned off, the power supply end of the temperature detection module 6 is at a high level at this time, and when the trigger switch module 5 is turned on, the power supply end of the temperature detection module 6 is at a low level at this time. When the detection end of the control module 3 detects that the power supply end of the temperature detection module 6 is at a high level, but the control module 3 does not receive the temperature electric signal of the temperature detection module 6, the control module 3 can determine that the temperature detection module 6 is abnormal, and at the moment, the control module 3 controls the alarm module 9 to work, namely, controls the alarm module 9 to alarm so as to play a role in prompting.
The control module 3 is also electrically connected with an indicator light module 10, and when the control module 3 controls the alarm module 9 to alarm, the control module 3 controls the indicator light module 10 to switch into abnormal light; when an abnormality occurs, the control module 3 controls the indicator lamp module 10 to switch to normal light. The indication lamp module 10 is used for prompting in different forms, so that the abnormality can be found timely.
The implementation principle of the temperature control circuit in the embodiment of the application is as follows: when the trigger switch module 5 is triggered, the trigger switch module 5 is turned off, and the second power supply module 4 can supply power to the temperature detection module 6, that is, the temperature detection module 6 can work. The temperature detection module 6 detects the temperature and sends a temperature electric signal to the control module 3, the control module 3 receives the temperature electric signal and converts the temperature electric signal into an actual temperature value, the control module 3 compares the actual temperature value with a preset temperature value, if the actual temperature value is lower than the preset temperature value, the control module 3 sends a control signal to the first power supply module 2 so that the first power supply module 2 supplies power to the heating module 1, the heating module 1 works to generate heat, and the temperature rises; if the actual temperature value is higher than the preset temperature value, the control module 3 controls the first power supply module 2 to stop supplying power so that the heating module 1 stops generating heat. The temperature detection module 6 is utilized to detect the temperature in real time, and the operation of the heating module 1 is controlled in real time, so that the temperature can be controlled more accurately.
In addition, the control module 3 can detect the level of the power supply end of the temperature detection module 6, when the power supply end is at a high level, the temperature detection module 6 does not transmit a temperature electric signal to the control module 3, and at the moment, the temperature detection module 6 is judged to be damaged, and the temperature cannot be detected, so the control module 3 controls the alarm module 9 to alarm so as to play a role in prompting.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A temperature control circuit comprising a heating module (1) and a first power supply module (2), the first power supply module (2) being adapted to supply power to the heating module (1) to generate heat, characterized in that: the intelligent power supply system comprises a control module (3), a second power supply module (4), a trigger switch module (5) and a temperature detection module (6);
The first power supply module (2) is electrically connected to the control module (3), the signal transmission end of the temperature detection module (6) is electrically connected to the control module (3), the power supply end of the control module (3) and the power supply end of the temperature detection module (6) are electrically connected to the second power supply module (4), one end of the trigger switch module (5) is electrically connected to the power supply end of the temperature detection module (6), and the other end of the trigger switch module (5) is electrically connected to the ground.
2. A temperature control circuit according to claim 1, wherein: the trigger switch module (5) is a reed switch.
3. A temperature control circuit according to claim 1, wherein: the temperature detection module (6) is a temperature sensor.
4. A temperature control circuit according to claim 1, wherein: a recoverable fuse (7) is connected in series between the heating module (1) and the first power supply module (2).
5. A temperature control circuit according to claim 1, wherein: an isolation module (8) is arranged between the control module (3) and the first power supply module (2).
6. A temperature control circuit according to claim 5, wherein: the isolation module (8) is an optical coupler, the control module (3) is electrically connected to the input end of the optical coupler, and the output end of the optical coupler is connected to the first power supply module (2).
7. A temperature control circuit according to claim 1, wherein: the detection end of the control module (3) is electrically connected with the power supply end of the temperature detection module (6) and is used for detecting a level signal of the power supply end of the temperature detection module (6), and the control module (3) is further electrically connected with an alarm module (9).
8. A temperature control circuit according to claim 7, wherein: the control module (3) is also electrically connected with an indicator lamp module (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323322207.4U CN221200303U (en) | 2023-12-06 | 2023-12-06 | Temperature control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323322207.4U CN221200303U (en) | 2023-12-06 | 2023-12-06 | Temperature control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221200303U true CN221200303U (en) | 2024-06-21 |
Family
ID=91524963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323322207.4U Active CN221200303U (en) | 2023-12-06 | 2023-12-06 | Temperature control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221200303U (en) |
-
2023
- 2023-12-06 CN CN202323322207.4U patent/CN221200303U/en active Active
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