CN103654007B - Water circulation electric blanket equipment with humidification function - Google Patents

Abstract

The invention relates to a water circulation electric blanket device with a humidification function. The electric blanket device includes: a controller, a remote control device, a heating conductor, a heating container, a water return container, a water outlet pipe, a water return pipe, an insulating spacer, a knob, and a decompression switch , high temperature resistant hose, cone, water inlet of blanket body, water injection port of heating container, water outlet of blanket body, atomization port, humidifier device, water inlet solenoid valve, water supply valve, overflow device, drain solenoid valve, humidity sensor, Water return port, water outlet and water separator. The humidifying device atomizes the pure water by ultrasonic excitation, and the resulting mist molecules contain a large amount of negative ions, which increases the air humidity and purifies the air at the same time. In addition, the electric blanket equipment also uses the thermal pressure difference generated by heating water as the water circulation power source to realize the pump-free water circulation, which has the advantages of no friction loss, quietness and noise, and safe use.

Description

A water circulation electric blanket device with humidification function

technical field

The invention belongs to the technical field of electric heating blankets, and in particular relates to a water circulation electric heating blanket device with a humidification function.

Background technique

With the development of society and the improvement of people's living standards, people have higher requirements for home life. About one-third of a person's life is spent on sleep, and the quality of sleep is closely related to the warmth and comfort of the mattress.

At present, heating in bed in winter generally adopts traditional heated kang or electric blanket. Heated kangs are widely used in rural areas in northern my country. Traditional heated kangs require a certain amount of space to build and burn fuel for heating, which pollutes the environment and makes it difficult to adjust the temperature. Moreover, building a heated kang has many restrictions on houses. Electric blankets are the most used bed heating products at present. The current electric blankets all achieve the heating effect by directly arranging heating wires in the interlayer of the blanket body. Generally speaking, this kind of electric blanket has many deficiencies: First, the heat conduction of the heating wire to the blanket body is not very uniform, and the heat is directly radiated from the heating wire through the blanket body, which will cause a burning sensation to the human skin. It is easy to cause dehydration and hotness of the human body when used, which seriously damages human health; the second is that it cannot be folded and cannot be washed;

Based on the above analysis, it is an urgent need in the field of electric blanket technology to provide a healthy, environmentally friendly, safe and reliable electric blanket.

Contents of the invention

The invention provides a water circulation electric blanket device with humidification function. The electric blanket has the advantages of no alternating electric field and magnetic field harmful to the human body, foldable work, not afraid of moisture, washable, uniform heat generation, and safe to use.

The present invention adopts following technical scheme:

A water circulation electric blanket device with humidification function, the electric blanket device includes: a controller, a remote control device, a heating conductor, a heating container, a water return container, a water outlet pipe, a water return pipe, an insulating spacer, a knob, a decompression switch, a high temperature resistant Hose, cone, water inlet of blanket body, water inlet of heating container, water outlet of blanket body, atomization port, humidifier device, water inlet solenoid valve, water supply valve, overflow device, drain solenoid valve, humidity sensor, water return port, The water outlet and the water distributor are characterized in that:

The return water container surrounds the heating container;

The upper end of the heating container is provided with a water outlet pipe, a heating conductor, a water injection port of the heating container and a decompression switch. The ratio of the length of the heating conductor to the height of the heating container is any value between 1/5 and 4/5. There is an insulating spacer;

The upper end of the return water container is provided with a return pipe, an atomizing port, a humidifier device, a water inlet solenoid valve, a water supply valve, an overflow device, a drain solenoid valve, a humidity sensor and a vent hole, and the return pipe and the humidifier device are connected through an inclined pipe. , the side of the inclined pipe close to the return pipe is higher, and a water supply valve is installed on the inclined pipe. The opening/closing of the water supply valve is controlled by the water inlet solenoid valve, and the excess water in the humidifier device is drained through the overflow device and the drain solenoid valve. into the return water container;

A cone is arranged at the bottom of the inner wall of the heating container, the lower end of the cone is close to the water outlet, and the higher end is close to the inner wall of the heating container;

The top of the humidifier device is provided with an atomization port and a humidity sensor, and its bottom is provided with a control circuit, which includes a regulated power supply circuit, an oscillating circuit, a drive circuit, a fog vibration plate and a water level sensor, wherein the regulated power supply The circuits are respectively connected to the oscillating circuit and the driving circuit, the oscillating circuit is connected to the fog vibrating plate, the driving circuit is connected to the water level sensor, the fog vibrating plate is connected to the driving circuit, and the water level sensor is connected to the driving circuit and the controller respectively;

The decompression switch is located on the top of the heating container, and the decompression switch is controlled by spring pressure, and is composed of waterproof gaskets, precision springs and screws;

Wherein, the water circulation electric blanket equipment also includes a display module, the display module adopts a character dot matrix liquid crystal display KM 12232F, and the fog vibrating plate adopts a PZT 1 type fog vibrating plate.

Preferably, the side wall of the return water container is 50 mm higher than the side wall of the heating container.

Preferably, the height of the higher end of the cone is not lower than the height of the water outlet by 5 mm, and at the same time not higher than the water outlet by 20 mm.

The beneficial effects that the present invention obtains are:

1. The thermal pressure difference generated by the heating of the water medium is used as the power source of the water cycle to realize the pump-free water cycle. Compared with products with pumps, it has no friction loss, is quiet and noiseless, saves costs, and has a long service life;

2. Use water heating instead of traditional electric heating wire heating to keep the heating facilities at the required temperature. The water circulation electric blanket can adjust the temperature arbitrarily between 20 and 60 degrees Celsius, and the temperature fluctuation during use is extremely small;

3. The heat pad heater is not charged, so there is no need to worry about causing fire and leakage, and it will not produce electromagnetic radiation;

4. Automatic power off when there is no water, which is safe and guaranteed. When the heating container is short of water, it can cut off the power by itself through its own working principle, without additional circuit protection;

5. The water cycle electric blanket consumes very little electricity and water. It only needs 1 degree of electricity for 3 days, and only needs to add a small cup of water for 5-10 days.

Description of drawings

Fig. 1 is the system mechanism diagram of this water circulation electric blanket;

Fig. 2 is the circuit control principle diagram of this water circulation electric blanket;

Fig. 3 is a schematic diagram of a heating conductor current control circuit;

Figure 4 is a schematic diagram of the current detection circuit;

Figure 5 is a schematic diagram of the display module interface circuit;

Fig. 6 is a schematic diagram of the circuit of the remote control device;

Fig. 7 is a block diagram of the control circuit of the humidifying device;

Fig. 8 is a circuit schematic diagram of the humidifying device;

Figure 9 is a block diagram of the workflow of the controller.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 shows the system structure diagram of the water circulation electric blanket. The system includes: controller 1, remote control device 2, heating conductor 3, heating container 4, return water container 5, outlet pipe 6, return water pipe 7, insulating spacer 8, knob 9, decompression switch 10, high temperature resistant hose 11 , 25, cone 12, blanket body water inlet 15, heating container water injection port 14, blanket body water outlet 13, atomization port 16, humidifier device 17, water inlet solenoid valve 18, water supply valve 19, overflow device 20, drainage Electromagnetic valve 21, humidity sensor 22, water return port 23, water outlet 24, water separator 26.

As shown in Figure 1, the heating container 4 and the return water container 5 adopt an enveloping design. The return water container 5 surrounds the heating container 4. The centers of the heating container 4 and the return water container 5 do not overlap. On one side, the side wall of the return water container 5 is higher than the side wall of the heating container 4 by 50 mm. During use, the size of the container needs to be designed according to the heat demand for heating. When the return water container is designed as a circle, the size of the return water container is φ3-2000mm; when the heating container is designed as a circle, the size is φ1-1000mm. When the heating container and return water container are designed in other shapes, the corresponding size can be designed according to the volume, such as: custom carpet heating project, the project area is 100 square meters, and the heating and return water container is designed to be circular, that is The heating vessel can be designed to be φ10mm-45000mm, and the return water vessel can be designed to be 20mm-80000mm. Calculate the required thermal energy volume according to the heat demanded by the project, and the small heater can be realized by designing the ratio of the heating container 4 and the return water container 5 to be 1:1.2-9.

The upper end of the heating container 4 is provided with a water outlet pipe 6, a heating conductor 3, a water injection port 14 of the heating container and a decompression switch 10. The ratio of the length of the heating conductor 3 to the height of the heating container 4 is any value between 1/5～4/5, especially When the ratio is 1/5, the effect is the best. An insulating spacer 8 is arranged between the two heating conductors 3, and the lower end of the insulating spacer 8 exceeds the heating conductor by 20 mm. The user can pour water into the heating container through the heating container water injection port 14. When using for the first time, the heating container 4 needs to be filled with water through the heating container water injection port 14. The heating container 4 is sealed by the knob 9 and the waterproof ring. Open the knob 9, and tighten the knob 9 after adding water.

The upper end of the return water container 5 is provided with a return pipe 7, an atomization port 16, a humidifier device 17, an inlet solenoid valve 18, a water supply valve 19, an overflow device 20, a drain solenoid valve 21, a humidity sensor 22 and a vent hole (not shown). ), the air vent makes the return water container 5 maintain the same air pressure with the outside world. The return pipe 7 and the humidifier device 17 are connected through an inclined pipe. The side of the inclined pipe close to the return pipe is higher, and a water supply valve 19 is installed on the inclined pipe. control. No need to replenish water in the heating container 4 in normal use, only need to add a small amount of water in the return water container 5 through the atomization port 16 to ensure the normal operation of the water circulation electric blanket. Water is injected into the humidifier device 17 through the atomization port 16, and the water inlet solenoid valve 18 controls the water supply valve 19 to open, and the water enters the return water container 5 through the return water pipe 7. When the interface on one side of the water heater device is below, the water inlet solenoid valve 18 controls the water supply valve 19 to close. Considering that if the water in the humidifier device 17 cannot be used up, it will easily breed bacteria after a long time, and it will affect the health of the user after being atomized and dispersed, and the humidifier device 17 can work with a small amount of water, so , the excess water in the humidifier device 17 is discharged into the return water container 5 through the overflow device 20 and the drain solenoid valve 21 .

Considering that the water quality in the north is relatively heavy, a large amount of scale will be generated after long-term use, and it is difficult to clean, which seriously affects the service life. In view of this, it can be injected with filtered pure water. In addition, in order to enhance the conductivity of water, a certain amount of water-soluble medium can be added into the heating container 4 during water injection.

After the water injection is completed, the power supply is turned on, and the remote control device 2 can be used to perform operations such as temperature setting, starting heating, and stopping heating. After setting the temperature and starting the heating, the heating conductor 3 generates heat, which gradually heats up the water in the heating container 4. At the same time, a large amount of water vapor is produced after the water in the heating container 4 is heated, and the pressure in the heating container 4 increases, so that The water outlet pipe 6 quickly draws water from the bottom of the inner wall of the heating container 4 through the water outlet 24 to form an efficient hot water outlet cycle. The hot water flows from the heating container 4 through the water outlet pipe 6, the high temperature resistant hose 25, the blanket body water inlet 15, and the water separator 26. After circulating in the high temperature resistant hose 11 in the blanket body, it enters the blanket body water inlet 13, flows into the return water container 5 through the return water pipe 7, and the amount of water in the return water container 5 increases. In order to facilitate the water outlet pipe 6 to quickly take water from the bottom of the inner wall of the heating container 4, a cone 12 is arranged at the bottom of the inner wall of the heating container 4. The lower end of the cone 12 is close to the water outlet 24, and the higher end is close to the inner wall of the heating container 4, and The height of the higher end shall not be lower than the height of the water outlet by 5mm, and shall not exceed the height of the water outlet by 20mm.

As the amount of water in the heating container 4 decreases, the resistance value of the heating conductor 3 increases gradually, and the current value in the circuit decreases accordingly. When the controller 1 detects that the current in the circuit is small to a certain value, it controls the triac to turn off Cut off the power supply of heating conductor 3, heating conductor 3 stops heating. After a period of time, the temperature of the water in the high-temperature-resistant hose 11 of the blanket body drops, and the negative air pressure is generated in the heating container 4 due to the temperature drop. , high temperature resistant hose 25, water distributor 26, blanket body, water outlet pipe 6 are drawn back in the heating container 4 after, the water yield in the return water container 5 reduces now, and the water yield in the heating container 4 increases. The resistance value of the heating conductor 3 gradually decreases, and the current value in the circuit increases accordingly. When the controller 1 detects that the current in the circuit increases to a certain value, it controls the triac to turn on the power supply of the heating conductor 3, and the heating conductor 3 continues to operate. Start heating, with the rise of the water temperature and air pressure in the heating container 4, the water in the heating container 4 is pumped out again, and sent to the high temperature resistant hose 11 in the blanket body, so that the cycle is repeated, neither dry burning nor leakage and other security risks.

In order to increase safety, a decompression switch 10 is provided on the upper end of the heating container 4 to effectively control the stability and balance of the vapor pressure of the heating container 4, and play the role of voltage stabilization and flow diversion, which is safe and reliable. The decompression switch 10 is controlled by spring pressure, and is located at the top of the heating container 4, and its structure is composed of waterproof gaskets, precision springs and screws.

Fig. 2 shows the circuit control principle diagram of the water circulation electric blanket. The control part of the circuit is divided into two parts, the main circuit and the remote control device 2. The main circuit is based on the AT89C52 single-chip microcomputer, with ADC0809, current transformer and dot-matrix liquid crystal display KM 12232F as the auxiliary chip, and the bidirectional thyristor is used to control the communication of the heater. broken. Current transformer, rectifier circuit and ADC0809 compose the analog quantity acquisition circuit. The single-chip microcomputer judges whether the water is completely discharged according to the size of the collected current, and controls the on-off of the heating conductor 3 accordingly. The fuselage buttons include four buttons for system on/off, temperature up, temperature down, and mode switching. The above-mentioned buttons cooperate with each other to realize functions such as temperature adjustment, timing on/off, quilt preheating and smart mode. A humidifying device is also provided in the system, and the humidifying device feeds back status signals to the microprocessor CPU and receives control signals from the microprocessor CPU.

In addition, the water circulation electric blanket system is also provided with an indicator light (not shown), the indicator light is a three-color light-emitting diode used to indicate the heating state, the red light means heating, and the green light means stop heating. The liquid crystal display is used to display the temperature and the set timing time. When the temperature needs to be adjusted, AT89C52 controls the heating conductor 3 to work according to the temperature set by the user. During the heating process, the electric current of the heater is detected in real time by a current transformer, and after being converted by A/D, it is sent to a single-chip microcomputer for processing. When the current reaches 0.35A or reaches the set heating time, the single-chip microcomputer controls the silicon controlled rectifier to cut off the heating conductor 3; when the power-off time determined by the set temperature is reached, the single-chip microcomputer controls the heater to start heating, so Cycle work. In addition, in order to improve the safety of the controller, a warning light is set in the system, and whether it works or not is controlled by the user.

Figure 3 shows the schematic diagram of the heating conductor current control circuit. The circuit is mainly composed of bidirectional thyristor BTA06 and optocoupler MOC3401 and other components. M is connected in series with the heating conductor 3, and the single-chip microcomputer sends a control signal from the P10 port to control the on-off of the optocoupler MOC3401, thereby controlling the on-off of the bidirectional thyristor BTA06, and then controls the operation of the heating conductor 3 according to the user's setting. By using bidirectional thyristor BTA06 instead of traditional relay, not only solves the problem of high noise, but also realizes the function of controlling strong current with weak current, which improves the safety and reliability of the system.

Figure 4 is a schematic diagram of the current detection circuit. The circuit is mainly composed of electronic components such as current detection element current transformer HCT226A and rectifier bridge 1N4001. HCT226A is a low-cost high-precision transformer with a rated input current of 5A, an output current of 215mA, an error of 0.11% to 0.12%, a linearity of 0.11%, and a phase shift of ≤8', which can fully guarantee the temperature control Accuracy requirements.

The working principle of the current detection circuit is: when heating, the current transformer detects the load current in real time, and converts the AC signal into a DC voltage signal that can be processed by the single-chip microcomputer through the rectifier bridge, and sends it to the A/D converter for conversion, and finally sends it to AT89C52 makes a corresponding judgment. When the current exceeds the set value, the single-chip microcomputer cuts off the power to the heating conductor 3 immediately, thereby preventing the occurrence of dry burning and ensuring that the water in the heating container 4 and the return water container 5 can be fully circulated.

The display module is mainly composed of character dot matrix liquid crystal display KM 12232F and other components, and its interface circuit with the single-chip microcomputer is shown in Figure 5. The main function of this module is: in the case of known temperature, power-on time and current relationship, display the function selected by the user, as well as the set temperature and time.

The circuit principle of the remote control device is shown in Figure 6, where D7 is the infrared emitter, and the keys are assigned as follows: K1 is for temperature adjustment, K2 is for timing on/off, K3 is for temperature/time up-regulation, K4 is for temperature/time down-regulation, K5 and The functions of the two cases of K6 can be set as required according to different application scenarios. In order to indicate the working state of the system, a three-color indicator light is set, which is controlled by the P14 and P15 pins of the microprocessor AT89C52. When the indicator light is white, the heater is in a power-off state, and when it is red, it is in a heating state. Green when energized but not heated.

The location of the humidifier unit 17 is shown in FIG. 1 . The mist vibrating plate is arranged at the bottom of the humidifier device 17, and the top of the humidifier device 17 is provided with an atomizing port 16 and a humidity sensor 22, and the humidity sensor 22 is used to feed back the ambient humidity value to the microprocessor CPU. Fig. 7 shows the block diagram of the control circuit of the humidifier device, a control circuit is also connected to the bottom of the humidifier device 17, and the control circuit includes a stabilized power supply circuit (not shown), an oscillation circuit, a drive circuit, a mist vibration plate and a water level sensor , wherein the stabilized power supply circuit is respectively connected with the oscillation circuit and the drive circuit to provide them with a stable 24vDC operating voltage. The oscillating circuit is connected to the driving circuit, the oscillating circuit is connected to the fog vibrating plate, the driving circuit is connected to the water level sensor, and the stabilized power supply provides the power required for the atomization to start; the oscillating circuit is used to generate the oscillating frequency to push the fog in the water The vibrating plate; the driving circuit, receives the signal from the water level sensor, and controls the oscillation circuit to start and stop the vibration; the water level sensor is used to send the control signal CTRL when there is "water shortage", and implement the "water shortage" stop to the fog vibrating plate. vibration protection.

Fig. 8 is a schematic diagram of the circuit of the humidifying device. The stabilized power supply 1 is used to supply enough power for atomization to start vibration. In order to ensure the amount of atomization, the supply power of the power supply is required to be not less than 36W.

Oscillating circuit 2 is mainly used to generate an oscillation frequency above 2.4MHZ to drive the fog vibration plate in the water. It is composed of inductors L1, L2, L3, resistors R3, R4, capacitors Cl, C2, and transistor Q1. The capacitive three-point LC oscillator composed of Q1 and its surroundings has an ultra-high frequency above 2.4MHz (the existing general ultrasonic oscillation frequency is 1.65MHz), so the fog molecules formed by the excitation can reach the micro-nano level.

The drive circuit 5 mainly controls the start and stop of the oscillation circuit, and its input signal CTRL comes from the water level sensor. It is composed of resistors R1, R2, R5, R10, capacitors C3, C4, C10, triode T1, and diode D1.

The water level sensor is mainly used to send out the control signal CTRL when there is "water shortage", to implement "water shortage" stop vibration protection for the fog vibrator, and to feed back the "water shortage" status to the microprocessor CPU. The microprocessor CPU sends a control signal to the water inlet solenoid valve 18 after receiving the above-mentioned "water shortage" signal. At this time, part of the water can supplement the water in the humidifier device 17 through the inclined pipe between the return pipe 7 and the humidifier device 17, thereby ensuring that the humidifier device can continue to work.

The fog vibrating plate 15 adopts the common PZT 1 type fog vibrating plate, which mainly completes the conversion of oscillating electric energy into atomization energy. The natural frequency of the fog vibration plate PZT 1 must meet 2.4MHz, and the water level sensor and the fog vibration plate are always immersed in the water tank during the circuit operation. When the water is reduced to no during the atomization process, the water level sensor senses the "water shortage" signal, which makes the contact CTRL disconnected, Tl is cut off, and does not supply the base operating current to Q1, so that the fog vibration plate stops vibrating and protects The role of the fog vibrator.

The humidifier uses ultrasonic waves to vibrate pure water to atomize it, and the resulting mist molecules contain a large number of negative ions with particle sizes of micro and nanometers, which can float in the air throughout the room. When encountering pollutant gas molecules (airborne bacteria, germs and other harmful substances), the micro-nano-scale fog molecules will form coated particles to surround the pollutant gas molecules and play the role of isolation and prevention. When the floating negative ions meet the bad positive ions emitted by electrical appliances, they can neutralize them, increase the air humidity and purify the air at the same time.

The workflow of the controller is shown in Figure 9. By arbitrarily setting the cycle power-off time within the range of 1min to 7min, the temperature can be continuously adjusted within the range of 20°C to 60°C. The timing time is timing start and timing work at any time within 24 hours. The single-chip microcomputer controls the on and off strictly according to the set timing time; the fixed sleep function is to automatically cut off the power after working for 8 hours, and the first 20 minutes are fast heating, and the remaining time is slow heating Finally, the temperature is maintained at about 35° C. (during the use of the electric blanket, if the power-on and off-time ratio remains constant, the temperature of the blanket body will become higher and higher). It is for this reason. The system is designed with an intelligent temperature mode, that is, after the system starts working, the first 20 minutes is fast heating, and as time goes by, the power-off time gradually increases to stabilize the temperature of the blanket. If the user does not make any settings after initialization, the controller will heat at the default temperature of 35°C. In addition, in order to improve the visual effect of the controller, each prompt information must be sent to the LCD screen for display.

This technology can be used for heating on beds, floors, tables, cushions, etc. It is safe and reliable, and can even share a host system to meet the heating and humidification needs of heating facilities such as beds, floors, tables, and cushions.

The scope of protection of the present invention is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the scope and spirit of the present invention. If these changes and modifications fall within the scope of the claims of the present invention and their equivalent technologies, the intent of the present invention is also to include these changes and modifications.

Claims (3)

1. one kind has the water circulation electric heating blanket equipment of humidification function, this electric blanket equipment comprises: controller, remote control equipment, heating conductor, heating container, backwater container, outlet pipe, return pipe, insulation spacer, knob, solution compress switch, Thermostable flexible hose, bullet, blanket body water inlet, heating container water filling port, blanket body delivery port, atomization mouth, humidifier apparatus, entering water electromagnetic valve, water supply valve, overflow device, drain solenoid valve, humidity sensor, water return outlet, delivery port and water knockout drum, it is characterized in that:

Backwater container surrounds heating container;

Heating container upper end is provided with outlet pipe, heating conductor, heating container water filling port are conciliate and compressed switch, and the ratio of the length of heating conductor and heating container height is arbitrary value between 1/5 ~ 4/5, between two heating conductors, be provided with insulation spacer;

Backwater container upper end is provided with return pipe, atomization mouth, humidifier apparatus, entering water electromagnetic valve, water supply valve, overflow device, drain solenoid valve, humidity sensor and passage, be communicated with by tilted tube between return pipe and humidifier apparatus, tilted tube is higher near the side of return pipe, tilted tube is provided with water supply valve, the opened/closed of water supply valve is subject to the control of entering water electromagnetic valve, and water unnecessary in humidifier apparatus enters in backwater container by overflow device and drain solenoid valve;

Bottom heating container inner wall, be provided with bullet, the lower one end of this bullet is near delivery port, and higher one end is near heating container inner wall;

The top of described humidifier apparatus is provided with atomization mouth and humidity sensor, control circuit is provided with bottom it, this control circuit comprises voltage-stabilized power supply circuit, oscillating circuit, drive circuit, mist shake sheet and level sensor, wherein, voltage-stabilized power supply circuit is connected with drive circuit with oscillating circuit respectively, and oscillating circuit connects mist and to shake sheet, and drive circuit is connected with level sensor, the mist sheet that shakes is connected with drive circuit, and level sensor is connected with controller with drive circuit respectively;

Described decompress(ion) switch is positioned at heating container top, and this solution compresses switch and adopts elastic press type Stress control, is made up of waterproof gasket, precision spring and screw;

Wherein, this water circulation electric heating blanket equipment also comprises display module, and described display module adopts character pattern liquid crystal display KM 12232F, and the described mist sheet that shakes adopts PZT 1 type mist to shake sheet.

2. the water circulation electric heating blanket equipment with humidification function according to claim 1, is characterized in that: the sidewall of described backwater container exceeds the sidewall 50mm of described heating container.

3. the water circulation electric heating blanket equipment with humidification function according to claim 1, is characterized in that: one end height that described bullet is higher is not less than described water outlet height 5mm, is no more than delivery port 20mm simultaneously.