CN213276392U - Heat preservation control system, foot soaking barrel and electric blanket - Google Patents
Heat preservation control system, foot soaking barrel and electric blanket Download PDFInfo
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- CN213276392U CN213276392U CN202022744876.0U CN202022744876U CN213276392U CN 213276392 U CN213276392 U CN 213276392U CN 202022744876 U CN202022744876 U CN 202022744876U CN 213276392 U CN213276392 U CN 213276392U
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Abstract
The utility model discloses a heat preservation control system, bubble foot bucket, electric blanket, wherein heat preservation control system includes: alternating current power supply, with the first heating module that alternating current power supply is connected, its characterized in that still includes: the second heating module is connected with the voltage reduction conversion module; when the first heating module is disconnected and the second heating module is conducted, the heat preservation control system is in a heat preservation state; and/or when the first heating module is conducted, the heat preservation control system is in a heating state. The utility model discloses an above-mentioned setting, to the electrical apparatus setting two kinds of operating condition that need heat, heat by heating module during the heating, can satisfy heating efficiency, then the disconnection heating module during the heat preservation state, only keep the heat preservation module work of relative low pressure, safer, effectively reduced user's safety risk.
Description
Technical Field
The utility model relates to a temperature control technical field especially relates to heat preservation control system, bubble foot bucket, electric blanket.
Background
In life, a plurality of heating types of electric appliances such as electric blankets or foot soaking barrels are inevitably required to be in contact with human bodies when in use, but most of the electric appliances in the market are directly heated by 220V alternating current, so that the heating efficiency can meet the requirements, but the potential safety hazard is high.
In particular, when the 220V ac power is used for heat preservation, a fire disaster is easily caused by excessive heat, and personal safety is endangered, and for this reason, chinese patent document No. CN208112983U discloses an intelligent temperature control circuit, which is applied to an electric blanket and comprises a power supply, a sampling circuit, a control circuit, a single chip microcomputer, a driving circuit and a detection circuit, wherein the single chip microcomputer processes environmental parameters collected by the sampling circuit, the control circuit of the operating time of the heating blanket and the detection circuit of the operating state of the heating blanket, so as to adjust the operating time of the heating blanket and detect the operating state, and control the circuit state in real time, thereby avoiding heating transition of the heating blanket.
However, although the above scheme reduces the safety risk caused by direct continuous heating with 220V ac, the potential safety hazard of the high voltage itself still cannot be avoided, and serious safety accidents still occur if short circuit, damage or other accidents such as water occur, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the defect that the potential safety hazard is more when an electric appliance adopts 220V alternating current for heating and heat preservation in the prior art, the utility model provides a heat preservation control system, a foot soaking barrel and an electric blanket.
The utility model discloses a technical scheme be, heat preservation control system, include: alternating current power supply, with the first heating module that alternating current power supply is connected, its characterized in that still includes: the second heating module is connected with the voltage reduction conversion module;
when the first heating module is disconnected and the second heating module is conducted, the heat preservation control system is in a heat preservation state;
and/or when the first heating module is conducted, the heat preservation control system is in a heating state.
Preferably, the first heating module is connected to the ac power supply through a first switch, and the second heating module is connected to the ac power supply through a second switch;
when the first switch is closed, the first heating module is conducted;
when the second switch is closed, the second heating module is conducted.
Preferably, the heat preservation control system further includes: the temperature sensor is used for detecting the ambient temperature of the first heating module and/or the second heating module, and the heat preservation control system is switched to a heat preservation state when the ambient temperature reaches a set value.
Preferably, the first heating module and the second heating module are both connected with a control unit, and the control unit switches the working states of the first heating module and the second heating module.
Preferably, the heat preservation control system is in a heating state, and the second heating module is conducted.
Preferably, the heat preservation control system further includes: and the alarm device is used for detecting the system current and starting an alarm when the system current reaches a preset value.
Preferably, the heat preservation control system further includes:
the first signal lamp is on when the system is powered on;
and the second signal lamp is turned on when the system is in a heat preservation state.
Preferably, the buck conversion module comprises a switch mode power supply for converting ac to dc.
The utility model also discloses a bubble foot bucket, it includes as before the heat preservation control system.
The utility model also discloses an electric blanket, it includes as before the heat preservation control system.
Compared with the prior art, the utility model discloses following beneficial effect has: two working states are set for the electric appliance needing to be heated, the first heating module is used for heating during heating, heating efficiency can be met, the first heating module is disconnected during the heat preservation state, the second heating module is only kept to work, and the safety is safer, so that the safety risk of a user is effectively reduced.
Drawings
The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:
fig. 1 is a system diagram of the present embodiment.
Detailed Description
A heat preservation control system, as shown in fig. 1, includes an ac power supply, and a first heating module connected to the ac power supply, and is characterized by further including: the second heating module is connected with the voltage reduction conversion module;
when the first heating module is disconnected and the second heating module is conducted, the heat preservation control system is in a heat preservation state;
and/or when the first heating module is conducted, the heat preservation control system is in a heating state.
When the preset temperature T' is less than or equal to the environmental temperature T of the first heating module, the second heating module and the first heating module are both disconnected; and when the preset temperature T' is greater than the ambient temperature T, the system is switched to a heating state. The system comprises a temperature sensor for detecting the ambient temperature T and feeding back the detection result to the control module.
In this embodiment, first heating module and second heating module all switch on during heating state, generate heat through first heating module and second heating module simultaneous working, and heating efficiency is with higher speed, shortens the heating time.
Simultaneously, in order to improve the security, only the second heating module switches on when keeping warm the state, and step-down conversion module adopts the switching mode power supply AC/DC who converts alternating current into direct current, with 220V alternating current power supply convert low voltage direct current back with the second heating module intercommunication, and the voltage of second heating module is 48V, because the direct current is less to the injury of people's health when 48V, the safety risk of reduction user when using electrical apparatus for a long time that can be very big.
Of course, in another embodiment, the direct current of 36V may also be used as the working voltage of the second heating module, which can further ensure the safety of the user and reduce the risk.
Specifically, the second heating module comprises a first heating unit and a first switch, and a switch mode power supply for converting alternating current into direct current is arranged between the first switch and the power supply; the first heating module comprises a second heating unit and a second switch, and the second switch is connected with the power supply. When the first switch is closed, the first heating module is conducted; when the second switch is closed, the second heating module is conducted.
It should be noted that, in this embodiment, the control module is a single chip or a chip, and the chip is connected to the AC/DC switch mode power supply, so that the 220V AC power supply provides 5V DC power as a working voltage of the chip after passing through the AC/DC switch mode power supply, and the specific voltage may also be changed according to different chips. The first heating module and the second heating module are both connected with a control unit, the control unit switches the working states of the first heating module and the second heating module, specifically, the chip is in signal connection with the first switch and the second switch, and after receiving different environmental parameters, the chip performs on-off control action on the first switch and the second switch, so that on-off control on the second heating module and the first heating module is realized.
Meanwhile, in view of the fact that the electric appliance is long in service time in the heat preservation state, in case of an accident, the electric appliance still can cause certain damage to human bodies, the control system further comprises an alarm device, when the ambient current reaches a preset value, the alarm device is started, the preset value can be set in advance according to the actual situation when a short circuit is compared with a circuit short circuit, therefore, when the electric appliance is in a short circuit fault or an accident, a user or a rescue worker can be reminded through the alarm device in time, and the alarm device is a buzzer in the embodiment.
In addition, the system further comprises: a first signal lamp L1, which is on when the system is powered on; and a second signal lamp L2 is turned on when the system is in a heat preservation state. And the first signal lamp and the second signal lamp are in signal connection with the chip, and the chip controls the start and stop of the two signal lamps according to the state of the system. The effect of signal reminding for the user is achieved.
In this embodiment, the 220V AC power source is connected to the AC/DC switch mode power source, the other end of the AC/DC switch mode power source is connected to one end of the first switch S1, the chip is connected, the other end of the first switch is connected to the first heating unit R1, and the first heating unit may be a resistance wire.
The AC/DC switch mode power supply converts 220V alternating current power supply into 48V direct current and then is connected with the first switch for supplying power, and meanwhile, the AC/DC switch mode power supply converts the 220V alternating current power supply into 5V direct current and then is connected with the chip for supplying power.
The 220V alternating current power supply is also connected with one end of a second switch S2, the other end of the second switch is connected with a second heating unit R2, and the second heating unit is a resistance wire.
The system can be used for various electric appliances needing heating and heat preservation, and can be commonly used on an electric blanket, a foot soaking barrel or a water dispenser, and the preset temperature can be manually set through a temperature setting button arranged on a product; the environment temperature measured by the temperature sensor corresponds to the temperature of the electric blanket, the liquid in the foot soaking bucket or the heating part liquid in the water dispenser.
When the system works, a 220V power supply is connected firstly, at the moment, a first signal lamp is long and bright and can be red light, a first switch and a second switch are both switched off, after a preset temperature value is preset, the preset temperature is compared with the real-time environment temperature measured by a temperature sensor, and when the preset temperature is less than or equal to the environment temperature, the first switch and the second switch are kept switched off; when the preset temperature is higher than the ambient temperature, the first switch and the second switch are kept closed, the first heating unit and the second heating unit start to work at the moment to heat, and the system enters a heating state.
When the temperature detector detects that the ambient temperature reaches the preset temperature, the system is switched to the heat preservation state, the second switch is controlled to be switched off at the moment, only the first heating unit continues to heat, the electric appliance is maintained to be in the heat preservation state, and meanwhile, the second signal lamp is long and bright and can be green.
Of course, if the current detection device detects that the current value change obviously reaches the preset current value during short circuit, the chip controls the buzzer to work and give an alarm.
In another embodiment, one or more diodes may be used instead of an AC/DC switched mode power supply. Meanwhile, detection units can be added for different electrical appliances to prevent the system from being in a heating state or a heat preservation state in an idle state, such as detecting whether sufficient moisture exists in the water dispenser and the foot soaking barrel through a pressure sensor or a water level sensor.
Meanwhile, the embodiment also discloses a control method of the heat preservation control system, which comprises the following steps:
detecting the actual temperature T of the environment where the first heating module and/or the second heating module are/is located, judging whether the actual temperature T reaches a preset temperature value T', if so, switching the heat preservation control system to a heat preservation state, and if not, switching the heat preservation control system to a heating state.
Further, the method also comprises the step of detecting the system current, and when the system current reaches a preset value, the power supply of the system is disconnected and an alarm is started. The preset value current is the current value when the system is in short circuit, so that the alarm can be given in time when the system is in fault and short circuit, and the safety is improved.
The present invention can also be applied to specific products, such as a foot bath barrel or an electric blanket including the above mentioned heat preservation control system, and the environmental temperature of the first heating module or the second heating module is the temperature of the liquid in the foot bath barrel or the temperature of the blanket of the electric blanket.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An insulation control system comprising: alternating current power supply, with the first heating module that alternating current power supply is connected, its characterized in that still includes: the second heating module is connected with the voltage reduction conversion module;
when the first heating module is disconnected and the second heating module is conducted, the heat preservation control system is in a heat preservation state;
and/or when the first heating module is conducted, the heat preservation control system is in a heating state.
2. The thermal insulation control system of claim 1, wherein the first heating module is connected to the ac power source through a first switch, and the second heating module is connected to the ac power source through a second switch;
when the first switch is closed, the first heating module is conducted;
when the second switch is closed, the second heating module is conducted.
3. The insulation control system according to claim 1, further comprising: the temperature sensor is used for detecting the ambient temperature of the first heating module and/or the second heating module, and the heat preservation control system is switched to a heat preservation state when the ambient temperature reaches a set value.
4. The heat preservation control system of claim 1, wherein the first and second heating modules are each connected to a control unit that switches operating states of the first and second heating modules.
5. The keep warm control system of claim 1, wherein the keep warm control system is in a heating state and the second heating module is on.
6. The insulation control system according to claim 1, further comprising: and the alarm device is used for detecting the system current and starting an alarm when the system current reaches a preset value.
7. The insulation control system according to claim 1, further comprising:
the first signal lamp is on when the system is powered on;
and the second signal lamp is turned on when the system is in a heat preservation state.
8. The thermal control system of claim 1, wherein the buck conversion module comprises a switched mode power supply that converts alternating current to direct current.
9. A foot bath bucket comprising the thermal insulation control system as claimed in any one of claims 1 to 8.
10. An electric blanket including a temperature maintenance control system as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022744876.0U CN213276392U (en) | 2020-11-24 | 2020-11-24 | Heat preservation control system, foot soaking barrel and electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022744876.0U CN213276392U (en) | 2020-11-24 | 2020-11-24 | Heat preservation control system, foot soaking barrel and electric blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213276392U true CN213276392U (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022744876.0U Active CN213276392U (en) | 2020-11-24 | 2020-11-24 | Heat preservation control system, foot soaking barrel and electric blanket |
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| Country | Link |
|---|---|
| CN (1) | CN213276392U (en) |
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