CN101639284B - Electric heater - Google Patents

Electric heater Download PDF

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Publication number
CN101639284B
CN101639284B CN2009100423772A CN200910042377A CN101639284B CN 101639284 B CN101639284 B CN 101639284B CN 2009100423772 A CN2009100423772 A CN 2009100423772A CN 200910042377 A CN200910042377 A CN 200910042377A CN 101639284 B CN101639284 B CN 101639284B
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CN
China
Prior art keywords
water
thick film
film heater
delivery port
control circuit
Prior art date
Application number
CN2009100423772A
Other languages
Chinese (zh)
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CN101639284A (en
Inventor
林小艺
熊君
谭发刚
陈前
Original Assignee
美的集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 美的集团有限公司 filed Critical 美的集团有限公司
Priority to CN2009100423772A priority Critical patent/CN101639284B/en
Publication of CN101639284A publication Critical patent/CN101639284A/en
Application granted granted Critical
Publication of CN101639284B publication Critical patent/CN101639284B/en

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Abstract

The invention discloses an electric heater. The electric heater comprises a control circuit, a water tank, a water pump, a thick film heater with a water inlet and a water outlet, and a water outlet nozzle. The water outlet of the thick film heater and the water outlet nozzle are connected with one end of a water return pipeline, while the other end of the water return pipeline is connected with the water tank. The water return pipeline is provided with an effluent recycling control switch electrically connected with the control circuit. The water outlet nozzle and the water return pipeline are arranged below the water outlet. The water outlet of the water return pipeline is lower than the water inlet of the water return pipeline. The pipe wall of the water return pipeline is provided with a through hole close to the water outlet. The water outlet nozzle is connected with the water outlet through the through hole. The water outlet is arranged at the bottom of the thick film heater. The water inlet is higher than the water outlet. When the water temperature of the water tank is too low, a temperature sensor sends a temperature signal of the water in the thick film heater to the control circuit. The control circuit controls the heater to meet requirements for constant temperature according to a program, thus the water is rapidly boiled. The product is safe, and the use is also convenient.

Description

A kind of electric heater
Technical field
The present invention relates to electric heater, particularly a kind of electric heater that is used for Fast Heating liquid, the improvement that belongs to existing electric heater is technological.
Background technology
The electrical heating product that present specialty is used for liquid heat has for example products such as water dispenser, insulating pot, electric water bottle, electric water boiler; These products all are in heating chamber, to place a lot of water in advance; Whole water with the inside heat fully then; Like this, hot water if desired is not a lot, obviously is to waste energy.
Therefore, the someone proposes, and heating chamber is separated with storage tank, wants to burn how much water and just burns how much water, and storage tank separates with heating chamber, when needs add hot water, through water pump with the water pump in the storage tank in heating chamber, need how much water, with regard to how much water of pump.Can reach certain energy-saving effect.
But for above-mentioned heater, the operating power of thick film heater is fixed, and can not regulate its operating power automatically according to the variations in temperature of water to be heated.Because the temperature of water tank is different in different places, under different seasonal and different state of weather, temperature differs and possibly reach about 20 degree; In when heating, the variation that thick film heater can't the perception water temperature is still heated according to certain power; Like this, when temperature is low, original water temperature is crossed when low; Firing rate is slow, and the temperature of water possibly not reach the requirement that requires the user.
The utility model content
The objective of the invention is to address the above problem and provide a kind of can be according to water temperature with the power adjusting of thick film heater to making the water can boiled fast value, make it to satisfy the electric heater of the temperature that quickly heats up to customer requirements.
The technical scheme that realizes the object of the invention is: a kind of electric heater, comprise control circuit, water tank, water pump, the thick film heater that has water inlet and delivery port and faucet, and water tank is connected through water pipe with water pump; The delivery port of water pump is connected with the water inlet of thick film heater; The delivery port of thick film heater is connected with an end of faucet and water return pipeline, and the other end of water return pipeline is connected with water tank, and water return pipeline is provided with the effluent recycling gauge tap; The effluent recycling gauge tap is electrically connected with control circuit; At least one temperature sensor is set on the electric heater, and temperature sensor is connected with control circuit, and faucet and reflux line all are arranged at the below of delivery port; And the delivery port of said reflux line is lower than the water inlet of reflux line; The tube wall of reflux line is provided with a through hole, and said through hole is near described delivery port, and said faucet is connected with delivery port through said through hole; Said delivery port is positioned at the bottom of thick film heater, and the position of said water inlet is higher than the position of delivery port.Temperature sensor is used to monitor the inner or peripheral water temperature of electric heater thick film heater, and water temperature is fed back to control circuit, realizes the adjusting control to the thick film heater heating power; Heating needn't be used water pump after finishing, and the residual water in the heater just can be back in the water tank through reflux line automatically; The position of the water inlet of thick film heater is higher than the position of its delivery port, then can the heating edge water outlet while intaking.
Above-mentioned water pump also is connected with control circuit, to realize the control of control circuit to the thick film heater inflow.
For safety, avoid thick film heater generation dry combustion method, in the bottom of thick film heater an anti-dry thermistor is set also, it is electrically connected with control circuit.Be used to monitor the surface temperature of thick film heater, prolong the service life of thick film heater.
The invention has the beneficial effects as follows that because temperature sensor is set on heater, the operating power of thick film heater becomes and can control, and can carry out work according to user's needs, not only product is safer, uses also more convenient.When the water temperature of water tank is crossed when low; The temperature signal that temperature sensor will get into the water of thick film heater is delivered to control circuit; Control circuit according to program with the power adjusting of thick film heater to making the water can boiled fast value, make it the constant requirement of satisfied temperature.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is that circuit of the present invention connects sketch map.
Fig. 3 is that of the present invention another implemented structural representation.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment concrete real-time mode of the present invention is described further.
Embodiment 1:
As shown in Figure 1; In the present embodiment; Electric heater comprises control circuit 9, water tank 1, water pump 2, the thick film heater 4 that has water inlet 5 and delivery port 8, effluent switch 6 and faucet 7, and water tank 1 and water pump 2 are connected through water pipe, and the delivery port of water pump 2 is connected with the water inlet 5 of thick film heater 4; Effluent switch 6 is installed on the delivery port 8 of thick film heater 4, and effluent switch 6 is communicated with faucet 7.In practical implementation; Effluent switch 6 adopts magnetic valve; Two thermistors 3 are separately positioned on the position of water inlet 5 and delivery port 8 of thick film heater 4; An anti-dry thermistor 3 is located at thick film heater 4 bottom (not shown)s, and three thermistors 3 and effluent switch 6 are electrically connected with control circuit 9 respectively.Can know the direction of current and being connected of each part clearly from Fig. 1, in the time of in being placed on these parts on any shell that designs, just form actual product.
It is as shown in Figure 2 that circuit of the present invention connects sketch map; Control circuit comprises input power supply L/N; This power supply is used to supply with central control unit through voltage of circuit such as reduction voltage circuit output, because of reduction voltage circuit and central control unit belong to the mature technology of household appliances product, so do not give unnecessary details.
Water inlet 5 on the thick film heater 4, delivery port 8 and three thermistors 3 of anti-dry are electrically connected so that detected three place's real-time temperatures to be provided with central control unit respectively; K1, K2, K3 are electrically connected with central control unit respectively, and central control unit provides power supply by reduction voltage circuit.K1, K2, K3 control thick film heater 4, water pump 2, effluent switch 6 respectively.
The flow direction of current was when the present invention worked: the user is placed on water in the storage tank 1, and through the effect of water pump 2, the water in the water tank 1 is extracted in the thick film heater 4 by water pump 2; Then; Slowly flow in the pipeline of these water in thick film heater 4, the shape of pipeline can be spiral, also can be linear; Can realize easily that the present invention does not give unnecessary details by prior art; Water in the thick film heater 4 gets into effluent switch 6 from its outlet then; Water inlet thermistor 3 passes to control circuit 9 with the temperature value that records; Control circuit 9 sends signal the power of thick film heater 4 is regulated; In addition, delivery port thermistor 3 passes to control circuit 9 with the temperature value that records, when its temperature that records meets the demands; Effluent switch 6 is opened, and boiling water flows to faucet 7 backs from effluent switch 6 outlets and flows out.
Above-mentioned thick film heater 4 is that heating resistance wire is imprinted on stainless iron or stainless steel surfaces, energising back Fast Heating, and its thermal efficiency and security are more taller than common heat-generating pipe, therefore, have at present to begin to be applied on the insulating pot.
Embodiment 2:
As shown in Figure 3; Electric heater and embodiment 1 difference are in the present embodiment: the delivery port 8 of thick film heater 4 is not installed effluent switch 6, but between the delivery port 8 of said thick film heater 4 and water tank 1, is provided with water return pipeline 11, and water return pipeline 11 is provided with and is equiped with effluent recycling gauge tap 10; Effluent recycling gauge tap 10 is electrically connected with control circuit 9; Faucet 7 and reflux line 11 all are arranged at the below of delivery port 8, and the delivery port of said reflux line 11 is lower than the water inlet of reflux line 11, and the tube wall of reflux line 11 is provided with a through hole; Said through hole is near described delivery port 8; Said faucet 7 is connected with delivery port 8 through said through hole, and said delivery port 8 is positioned at the bottom of thick film heater 4, and the position of said water inlet 5 is higher than the position of delivery port 8.When thick film heater 4 stops to heat; Control circuit 9 opens it to water outlet backflow gauge tap 10 signals; Hot water in the thick film heater 4 is back in the water tank 1, during use, and thick film heater 4 heating; Effluent recycling gauge tap 10 cuts out, and the hot water in the thick film heater 4 normally flows out from faucet 7.

Claims (3)

1. electric heater; Comprise control circuit (9), water tank (1), water pump (2), the thick film heater (4) that has water inlet (5) and delivery port (8) and faucet (7); Water tank (1) is connected through water pipe with water pump (2), and the delivery port of water pump (2) is connected with the water inlet (5) of thick film heater (4), and the delivery port (8) of thick film heater (4) is connected with an end of faucet (7) and water return pipeline (11); The other end of water return pipeline (11) is connected with water tank (1); Water return pipeline (11) is provided with effluent recycling gauge tap (10), and effluent recycling gauge tap (10) is electrically connected with control circuit (9), and at least one temperature sensor is set on the electric heater; And temperature sensor is connected with control circuit (9); It is characterized in that faucet (7) and reflux line (11) all are arranged at the below of the delivery port (8) of thick film heater (4), and the delivery port of said reflux line (11) is lower than the water inlet of reflux line (11), the tube wall of reflux line (11) is provided with a through hole; Said through hole is near the delivery port (8) of described thick film heater (4); Said faucet (7) is connected with the delivery port (8) of thick film heater (4) through said through hole, and the delivery port (8) of said thick film heater (4) is positioned at the bottom of thick film heater (4), and the position of said water inlet (5) is higher than the position of the delivery port (8) of thick film heater (4).
2. electric heater according to claim 1 is characterized in that said water pump (2) is electrically connected with control circuit (9).
3. electric heater according to claim 1 is characterized in that in the bottom of thick film heater (4) an anti-dry temperature sensor (3) being set also, and it is electrically connected with control circuit (9).
CN2009100423772A 2009-09-02 2009-09-02 Electric heater CN101639284B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100423772A CN101639284B (en) 2009-09-02 2009-09-02 Electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100423772A CN101639284B (en) 2009-09-02 2009-09-02 Electric heater

Publications (2)

Publication Number Publication Date
CN101639284A CN101639284A (en) 2010-02-03
CN101639284B true CN101639284B (en) 2012-11-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102313357A (en) * 2011-09-27 2012-01-11 孙希波 Heater for hot-water pipe
CN102357007A (en) * 2011-10-12 2012-02-22 东莞市酷美电子科技有限公司 Instantaneous water dispenser
CN107126099A (en) * 2016-02-27 2017-09-05 湖南康之源科技有限公司 A kind of energy-saving heating system for water dispenser
CN107157321B (en) * 2017-05-11 2019-08-13 浙江绍兴苏泊尔生活电器有限公司 Insulating pot

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201052087Y (en) * 2007-04-11 2008-04-30 罗红光 Intelligent vehicle mounted drinking machine
CN101464061A (en) * 2009-01-07 2009-06-24 广东亿龙电器股份有限公司 Heating method for household instant liquid heating mechanism
CN201488238U (en) * 2009-09-02 2010-05-26 美的集团有限公司 Electric heater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201052087Y (en) * 2007-04-11 2008-04-30 罗红光 Intelligent vehicle mounted drinking machine
CN101464061A (en) * 2009-01-07 2009-06-24 广东亿龙电器股份有限公司 Heating method for household instant liquid heating mechanism
CN201488238U (en) * 2009-09-02 2010-05-26 美的集团有限公司 Electric heater

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Owner name: MIDEA GROUP CO., LTD.

Free format text: FORMER NAME: MEIDI GROUP CO. LTD.

CP03 Change of name, title or address

Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28

Patentee after: Midea Group Co., Ltd.

Address before: 528311 Penglai Road, Beijiao Town, Foshan District, Guangdong, China,

Patentee before: Meidi Group Co., Ltd.