CN203299660U - Multiple protection drying and heating device for intelligent toilets - Google Patents

Multiple protection drying and heating device for intelligent toilets Download PDF

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Publication number
CN203299660U
CN203299660U CN201320293719XU CN201320293719U CN203299660U CN 203299660 U CN203299660 U CN 203299660U CN 201320293719X U CN201320293719X U CN 201320293719XU CN 201320293719 U CN201320293719 U CN 201320293719U CN 203299660 U CN203299660 U CN 203299660U
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China
Prior art keywords
drying
circuit
heating device
heating
controller
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Active
Application number
CN201320293719XU
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Chinese (zh)
Inventor
赵立新
孙智涛
王潍江
郑小兵
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WUXI ALFUN SCIENCE AND TECHNOLOGY Co Ltd
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WUXI ALFUN SCIENCE AND TECHNOLOGY Co Ltd
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Priority to CN201320293719XU priority Critical patent/CN203299660U/en
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Abstract

The utility model relates to a heating device, in particular to a multiple protection drying and heating device for intelligent toilets. The multiple protection drying and heating device comprises a controller, a drying circuit and a heating circuit, wherein an electromagnetic system of an electromagnetic contactor is serially connected on the drying circuit, a normally open contact of the electromagnetic contactor is serially connected on the heating circuit, and after the drying circuit is close, the close of the heating circuit is controlled by the electromagnetic contactor. The multiple protection drying and heating device has two temperature safety devices. The power supply linkage is achieved by the heating circuit and the drying circuit, and the heating circuit is detected. The multiple protection prevents disasters triggered by overheating of a heating source.

Description

Intellectual water closet multiple protective drying and heating device
Technical field
The utility model relates to a kind of heating arrangement, is specially intellectual water closet multiple protective drying and heating device.
Background technology
The intellectual water closet baker adopts Resistant heating as heating source, adopts Thermal Cutoffs as heating source temperature overheating protective device.Limitation due to Thermal Cutoffs self-characteristic and installation site, when the heating source temperature rises over the safe temperature value, Thermal Cutoffs there will be and can not in time disconnect and make heating source lag behind cut off power supply, and the thermal shock meeting of resistance wire causes the heating source temperature to continue rise and work the mischief.
The utility model content
For above-mentioned technical matters; the utility model provides a kind of heating arrangement of multiple protection functions; concrete technical scheme is: intellectual water closet multiple protective drying and heating device; comprise controller, drying circuit and heater circuit; on described drying circuit, be in series with the electromagnetic system of electromagnetic contactor; the normally open contact of described electromagnetic contactor is connected on heater circuit, and drying circuit is controlled and connected heater circuit by electromagnetic contactor after connecting.
On described drying circuit, also be connected with the oven dry blower fan, oven dry blower fan and electromagnetic contactor parallel connection, then connect with the oven dry switch, the oven dry switch is connected with controller.
On described heater circuit, also be in series with heating source, safety apparatus and heater switch and power switch, heater switch good person's power switch is connected with controller respectively.
Described safety apparatus comprise bimetallic temperature controller and the expendable Thermal Cutoffs that can automatically recover.
On described heater circuit, also be in series with current detector, current detector is connected with controller.
The heating source housing comprises two-layer, and internal layer is the mica housing, and skin is aluminium foil.
The course of work is:
While starting working, the switch that switches on power, heater switch and oven dry switch, after drying circuit is connected, the work of oven dry blower fan, electromagnetic contactor produces electromagnetism simultaneously, by the normally open contact closure of electromagnetic contactor, connects heater circuit.
In heating process; automatically the bimetallic temperature controller that recovers is first order overheating protection; when the heating source supply voltage is too high, oven dry air output deficiency or EAT be when higher, when the heating source central temperature reaches set temperature, the bimetallic temperature controller that automatically recovers will cut off heater circuit.
Otherwise during lower than permissive temperature, the bimetallic temperature controller that automatically recovers is connected the heating source current supply circuit when the heating source internal temperature.
When first order overheating protection due to the delay of temperature controller action, when experiencing the on the low side or quality problems of regional temperature and losing efficacy, second level overheating protection starts.
Expendable Thermal Cutoffs is second level overheating protection, and when the heating source internal temperature surpassed the highest permission, expendable Thermal Cutoffs disconnected the heating source current supply circuit, and irrecoverable, greatly reduced the possibility of drying heater generation disaster.
When this well heater quits work, controller can detect by current detector the current status of heater circuit, when closing heating source, occur electromagnetic contactor to lose efficacy and connect, heater circuit controls and lost efficacy and connected, while perhaps in heater circuit, existing electric current to surpass the allow current phenomenon, the controller disconnecting power switch, and give the alarm.
The utility model comprises two place's Temperature protection devices, and when first order overheating protection was lost efficacy, second level overheating protection started, and disconnected the heating source current supply circuit, and irrecoverable.By heater circuit and drying circuit, realize for electric shaft in addition, while only having the work of oven dry blower fan, the heating source power supply just is access in, control according to demand again the on/off of current supply circuit, last, when closing heating source, detect heater circuit, occurs cut-out film when abnormal, and give the alarm.Multi-faceted protection, avoid heating source overheated and cause disaster.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Accompanying drawings embodiment of the present utility model; as shown in Figure 1; intellectual water closet multiple protective drying and heating device; comprise controller 1, drying circuit and heater circuit; on described drying circuit, be in series with the electromagnetic system of electromagnetic contactor 3; the normally open contact of described electromagnetic contactor 3 is connected on heater circuit, and drying circuit is controlled and connected heater circuit by electromagnetic contactor 3 after connecting.
On described drying circuit, also be connected with oven dry blower fan 2, oven dry blower fan 2 and electromagnetic contactor 3 parallel connections, then connect with oven dry switch 21, oven dry switch 21 is connected with controller 1.
On described heater circuit, also be in series with heating source 7, safety apparatus and heater switch 4 and power switch 9, heater switch 4 good person's power switches 9 are connected with controller 1 respectively.
Described safety apparatus comprise bimetallic temperature controller 6 and the expendable Thermal Cutoffs 5 that can automatically recover.
On described heater circuit, also be in series with current detector 8, current detector 8 is connected with controller 1.
Heating source 7 housings comprise two-layer, and internal layer is the mica housing, and skin is aluminium foil.
The course of work is:
While starting working, the switch 9 that switches on power, heater switch 4 and oven dry switch 21, after drying circuit is connected, 2 work of oven dry blower fan, electromagnetic contactor 3 produces electromagnetism simultaneously, by the normally open contact closure of electromagnetic contactor 3, connects heater circuit.
In heating process; automatically the bimetallic temperature controller 6 that recovers is first order overheating protection; when heating source 7 supply voltages are too high, oven dry air output deficiency or EAT be when higher, when heating source 7 central temperatures reach 90 ℃, the bimetallic temperature controller 6 that automatically recovers will cut off heater circuit.Even thermal shock effect is arranged, the temperature of heating source 7 does not raise can surpass 175 ℃, has just arrived the fusing point of baker air channel flame-proof ABS plastics.
Otherwise during lower than 80 ℃, the bimetallic temperature controller 6 that automatically recovers is connected the heating source current supply circuits when heating source 7 internal temperatures.
When first order overheating protection due to the delay of temperature controller action, when experiencing the on the low side or quality problems of regional temperature and losing efficacy, second level overheating protection starts.
Expendable Thermal Cutoffs 5 is second level overheating protection, adopts the expendable Thermal Cutoffs of 113 ℃ to realize.When the heating source internal temperature surpassed 113 ℃, expendable Thermal Cutoffs 5 disconnected the heating source current supply circuit, and irrecoverable, greatly reduced the possibility of drying heater generation disaster.
When this well heater quits work, controller 1 can detect by current detector 8 current status of heater circuit, when closing heating source, occur electromagnetic contactor 3 to lose efficacy and connect, heater circuit controls and lost efficacy and connected, while perhaps in heater circuit, existing electric current to surpass the 30mA phenomenon, controller 1 disconnecting power switch 9, and give the alarm.
Controller 1 adopts Microchip company (Microchip Technology Incorporated Microchip Technology) PIC18F25K20 single-chip microcomputer as oven dry controller core control assembly.Its key property: operating voltage range: 1.8~3.6V, 32K program's memory space (Flash), 1536 byte data storage spaces (SRAM), 256 byte data EEPROM, 25 I/O mouths, 1 10 10 passage ADC, CCP/ (PWM) 1/1, SPI I2C, EUSART, 2 comparers, 18 bit timing device, 3 16 bit timing devices, catch/relatively/PWM(CCP), enhancement mode CCP(ECCP), main synchronous serial interface (SPI/ I2C), enhanced general synchronous/asynchronous transceiver (EUSART).
With resistance wire (mica frame) well heater as the oven dry heating source.Rated operational voltage AC220V, rated power 270W, mica housing coated metal paper tinsel ground connection is drawn.

Claims (6)

1. intellectual water closet multiple protective drying and heating device; comprise controller, drying circuit and heater circuit; it is characterized in that: the electromagnetic system that is in series with electromagnetic contactor on described drying circuit; the normally open contact of described electromagnetic contactor is connected on heater circuit, and drying circuit is controlled and connected heater circuit by electromagnetic contactor after connecting.
2. intellectual water closet according to claim 1 multiple protective drying and heating device; it is characterized in that: on described drying circuit, also be connected with the oven dry blower fan; oven dry blower fan and electromagnetic contactor parallel connection, then connect with the oven dry switch, the oven dry switch is connected with controller.
3. intellectual water closet according to claim 1 multiple protective drying and heating device; it is characterized in that: on described heater circuit, also be in series with heating source, safety apparatus and heater switch and power switch, heater switch good person's power switch is connected with controller respectively.
4. intellectual water closet according to claim 3 multiple protective drying and heating device, it is characterized in that: described safety apparatus comprise bimetallic temperature controller and the expendable Thermal Cutoffs that can automatically recover.
5. according to claim 1 or 3 described intellectual water closet multiple protective drying and heating devices, it is characterized in that: on described heater circuit, also be in series with current detector, current detector is connected with controller.
6. intellectual water closet according to claim 1 multiple protective drying and heating device, it is characterized in that: the heating source housing comprises two-layer, and internal layer is the mica housing, and skin is aluminium foil.
CN201320293719XU 2013-05-27 2013-05-27 Multiple protection drying and heating device for intelligent toilets Active CN203299660U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320293719XU CN203299660U (en) 2013-05-27 2013-05-27 Multiple protection drying and heating device for intelligent toilets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320293719XU CN203299660U (en) 2013-05-27 2013-05-27 Multiple protection drying and heating device for intelligent toilets

Publications (1)

Publication Number Publication Date
CN203299660U true CN203299660U (en) 2013-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320293719XU Active CN203299660U (en) 2013-05-27 2013-05-27 Multiple protection drying and heating device for intelligent toilets

Country Status (1)

Country Link
CN (1) CN203299660U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109428317A (en) * 2017-09-04 2019-03-05 青岛海尔洗衣机有限公司 A kind of dryer overheat protecting system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109428317A (en) * 2017-09-04 2019-03-05 青岛海尔洗衣机有限公司 A kind of dryer overheat protecting system and method
CN109428317B (en) * 2017-09-04 2022-05-24 重庆海尔洗衣机有限公司 Overheat protection system and method for clothes dryer

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