CN214841291U - Dehumidifying warm air device - Google Patents

Abstract

The utility model discloses a dehumidification heating air device, it includes blast gate and dehumidification heater, can dehumidify and dry indoor circulating air, can be for indoor new trend of introducing again and carry out dehumidification stoving, improves indoor travelling comfort. The air valve comprises a shell, a valve plate and a driving mechanism, the shell is provided with an air cavity, an indoor air inlet, an outdoor air inlet and an air outlet, the indoor air inlet, the outdoor air inlet and the air outlet are communicated with the air cavity, the indoor air inlet and the outdoor air inlet are positioned on two adjacent side surfaces or the same side surface of the shell, the valve plate can be rotatably arranged in the air cavity to enable the indoor air inlet and the outdoor air inlet to be opened or closed or opened, and the driving mechanism is connected with the valve plate to drive the valve plate to rotate; the dehumidifying heater comprises a box body, an evaporator, a condenser, a fan and a heating element, wherein the box body is provided with an air duct, an inlet and an outlet, the inlet and the outlet are communicated with the air duct, and the inlet is communicated with the air outlet; the evaporator, the condenser and the heating element are sequentially arranged in the air channel along the air flowing direction; the fan is arranged in the air duct.

Description

Dehumidifying warm air device

Technical Field

The utility model relates to the technical field of household appliances, in particular to dehumidification heater unit.

Background

With the improvement of the living standard of consumers, people pay more and more attention to healthy life style. At present, a bathroom fan heater on the market has a single function, only has simple functions of warm air, illumination and the like, and cannot well meet the living requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dehumidification heater unit to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a dehumidification heater unit, dehumidification heater unit includes:

the air valve comprises a shell, a valve plate and a driving mechanism; the shell is provided with an air cavity, an indoor air inlet, an outdoor air inlet and an air outlet; the indoor air inlet, the outdoor air inlet and the air outlet are communicated with the air cavity; the indoor air inlet and the outdoor air inlet are respectively positioned on two adjacent side surfaces or the same side surface of the shell; the valve plate is arranged in the air cavity and can be rotatably arranged so as to enable the indoor air inlet and the outdoor air inlet to be in a state of opening one by one or both; the driving mechanism is connected with the valve plate to drive the valve plate to rotate;

the dehumidification heater comprises a box body, a compressor, a throttle valve, an evaporator, a condenser, a fan and a heating piece; the box body is provided with an air duct, an inlet and an outlet; the inlet and the outlet are both communicated with the air duct, and the inlet is communicated with the air outlet; the evaporator, the condenser and the heating element are arranged in the air duct and are sequentially arranged along the air flowing direction; the fan is arranged in the air duct; the evaporator, the compressor, the condenser and the throttle valve are sequentially connected in a closed loop mode.

The utility model discloses following beneficial effect has at least: the casing of the air valve is provided with an indoor air inlet and an outdoor air inlet, the rotatable valve plate is arranged in the air cavity, the valve plate can be driven to rotate through the driving mechanism, and then the indoor air inlet and the outdoor air inlet are controlled to be in an open-close state or an open-close state, so that the indoor air circulation mode and the fresh air mode can be switched. The inlet of the box body is communicated with the air outlet, and the fan is arranged in the air channel to provide driving force for air flow so as to promote a large amount of air to flow into the air channel; and, set gradually evaporimeter, condenser and the piece that generates heat along the air flow direction in the wind channel of box, can accomplish dehumidification and heating in proper order to the air that flows into in the wind channel for the air that flows to indoor satisfies the user's demand. With the export of box and the air outlet intercommunication of blast gate to through the indoor air inlet of rotation control of valve plate or outdoor air inlet, with the help of blast gate and dehumidification heater, can realize indoor circulating air's dehumidification and dry, can be again for indoor new trend of introducing and dehumidify and dry, thereby improve indoor travelling comfort. The evaporator, the compressor, the condenser and the throttle valve are sequentially connected in a closed loop mode to form a heat pump system, so that the heat of air can be effectively recycled, and the heat waste is avoided.

As a further improvement of the above technical solution, the air valve further comprises an air filter; the air filter is used for filtering the air entering the dehumidifying heater. Set up air filter at the blast gate, get rid of the impurity in the air, avoid the air to take impurity entering dehumidification heater and cause the heat exchange efficiency decline of evaporimeter, condenser etc. finally, lead to dehumidification heater's working effect not up to standard.

As a further improvement of the technical scheme, the air filter is an air filter, the air filter is arranged in the air cavity, and the air filter is positioned at the air outlet. Adopt air cleaner, the suspended particle in can the high-efficient filtering air to, air filter sets up in the air outlet, and indoor air intake and outdoor air intake can be saved air filter's use cost.

As a further improvement of the above technical solution, the driving mechanism is a motor; the motor is connected with the shell; the valve plate is provided with a connecting hole, and an output shaft of the motor is correspondingly inserted into the connecting hole and connected with the connecting hole so as to drive the valve plate to rotate; the valve plate is equipped with the pivot, the pivot is connected with the casing, and the coaxial setting of the output shaft of pivot and motor, the output shaft of pivot and motor are located the both sides of valve plate respectively. The output shaft of the motor is directly inserted into the connecting hole of the valve plate and is fixed with the valve plate through the output shaft, and when the motor works, the valve plate is driven to rotate around the axis of the output shaft through the output shaft. Set up the pivot on the valve plate, the axis of this pivot and the coincidence of output shaft, and pivot and output shaft are located the both sides of valve plate respectively, and when motor drive valve plate rotated, can make the valve plate rotate more stably with the help of the pivot.

As a further improvement of the above technical scheme, an output shaft of the motor is provided with an induction sheet; the blast gate still includes:

a first limit switch; when the valve plate closes the indoor air inlet, the first limit switch is triggered by the induction sheet to generate a first trigger signal;

a controller; the first limit switch and the motor are respectively electrically connected with the controller, and the controller generates a first control signal after receiving a first trigger signal of the first limit switch to control the motor to stop working.

Through setting up first limit switch to set up the response piece on the output shaft of motor, can rotate when targetting in place in order to close indoor air intake at the valve plate, first limit switch can be triggered to the response piece, and then receives first limit switch's trigger signal control motor stop work through the controller, avoids being connected between the output shaft of valve plate and motor to receive destruction.

As a further improvement of the above technical solution, the air valve further comprises a second limit switch; when the valve plate closes the outdoor air inlet, the second limit switch is triggered by the induction sheet to generate a second trigger signal; the second limit switch and the motor are respectively electrically connected with the controller, and the controller generates a second control signal after receiving a second trigger signal of the second limit switch to control the motor to stop working.

Set up the condition of response piece on the output shaft of motor under, set up second limit switch, can rotate the position in order to close outdoor air intake at the valve plate, the response piece can trigger second limit switch, and then receives second limit switch's trigger signal control motor stop work through the controller, avoids being connected between the output shaft of valve plate and motor to receive destruction.

As a further improvement of the above technical solution, the air valve further comprises a first sealing rubber strip and a second sealing rubber strip; the first sealing rubber strip is connected with the inner wall surface of the shell and located at the indoor air inlet, and the second sealing rubber strip is connected with the inner wall surface of the shell and located at the outdoor air inlet. The first sealing rubber strip and the second sealing rubber strip are arranged on the inner wall surface of the shell, so that when the valve plate closes the indoor air inlet or the outdoor air inlet, the valve plate can be in close contact with the inner wall surface of the shell, and the air leakage phenomenon is avoided.

As a further improvement of the above technical solution, the dehumidifying heater further comprises a negative ion generator; the negative ion generator is arranged in the air duct. Set up anion generator in the wind channel, can disinfect to the air that will flow into indoor, play the purification performance, improve the cleanliness factor of room air.

As a further improvement of the technical scheme, the fan is arranged between the condenser and the heating element. The fan is arranged between the condenser and the heating element, so that the air with high humidity can be prevented from entering the fan under the action of negative pressure generated by the fan to influence the normal work of the fan.

As a further improvement of the technical scheme, the heating element is a thermistor heater. The selected thermistor heater has the advantages of automatic constant temperature, reliable work, non-conduction, high heat efficiency and long service life, and the thermistor heater cannot be damaged when the fan stops working.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of a dehumidifying heating apparatus according to the present invention in an air internal circulation state;

fig. 2 is a schematic structural diagram of an embodiment of the dehumidifying heating apparatus according to the present invention in a state of introducing fresh air;

fig. 3 is a perspective view of the structure of the air valve in the dehumidifying warm air device provided by the present invention;

fig. 4 is a schematic structural diagram of the damper in the dehumidification air heater provided by the present invention on the XY plane;

fig. 5 is a schematic structural diagram of an air valve on a YZ plane in the dehumidifying warm air device provided by the present invention;

fig. 6 is a schematic diagram of an internal structure of a dehumidifying heater in the dehumidifying heating apparatus provided by the present invention.

The drawings are numbered as follows: 100. a dehumidifying heater; 110. an outlet; 120. an inlet; 130. a box body; 140. an evaporator; 150. a condenser; 160. a fan; 170. a compressor; 180. a heat generating member; 190. a negative ion generator; 200. an air valve; 210. an indoor air inlet; 211. a first sealing rubber strip; 220. an outdoor air inlet; 221. a second sealing rubber strip; 230. an air outlet; 240. a housing; 250. a motor; 251. an output shaft; 252. a bolt; 260. a valve plate; 270. an air filter; 281. a first limit switch; 282. a second limit switch; 290. an induction sheet; 300. is connected with an air pipe.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

It should be noted that, in the drawings, the X direction is from the rear side of the dehumidifying warm air device to the front side; the Y direction is from the left side of the dehumidifying warm air device to the right side; the Z direction is from the lower side of the dehumidifying warm air device to the upper side. The direction of the arrows in fig. 1 and 2 indicates the flow direction of the air.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 6, several embodiments of the dehumidifying warm air device of the present invention will be described below.

As shown in fig. 1 to 6, an embodiment of the present invention provides a dehumidifying heater device, which can be used in a bathroom, the dehumidifying heater device includes: an air valve 200 and a dehumidifying heater 100.

The damper 200 includes a housing 240, a valve plate 260, and a drive mechanism.

The housing 240 may be made of metal and may be a square body formed by connecting six plates. The casing 240 is provided with an air cavity, an indoor air inlet 210, an outdoor air inlet 220 and an air outlet 230, wherein the indoor air inlet 210, the outdoor air inlet 220 and the air outlet 230 are communicated with the air cavity, so that indoor air can flow into the air cavity from the indoor air inlet 210, and outdoor fresh air can flow into the air cavity from the outdoor air inlet 220.

The indoor air inlet 210 and the outdoor air inlet 220 are respectively located at two adjacent sides of the housing 240. In this embodiment, the indoor air inlet 210 is disposed on the rear side plate of the casing 240, the outdoor air inlet 220 is disposed on the right side plate of the casing 240, and the air outlet 230 is disposed on the front side plate of the casing 240.

The valve plate 260 can be a metal plate, the valve plate 260 is disposed in the air cavity, and the valve plate 260 can be rotatably disposed to enable the indoor air inlet 210 and the outdoor air inlet 220 to be opened and closed or opened. The rear end of the valve plate 260 is rotatable about a vertical axis (or Z-axis).

Because the indoor air inlet 210 is disposed on the rear side plate of the casing 240, and the outdoor air inlet 220 is disposed on the right side plate of the casing 240, as shown in fig. 4, when the valve plate 260 rotates clockwise until the valve plate 260 blocks the indoor air inlet 210, the outdoor fresh air flows into the air inlet chamber from the outdoor air inlet 220; when the valve plate 260 rotates counterclockwise until the valve plate 260 covers the outdoor intake vent 220, indoor air flows into the intake chamber from the indoor intake vent 210. In the process of switching the valve plate 260 between the open state and the closed state of the outdoor intake vent 220 or the indoor intake vent 210, the valve plate 260 rotates through an angle of 90 °.

Of course, the valve plate 260 may also be rotated through an angle less than 90 ° so that indoor air and outdoor fresh air flow into the air intake chamber simultaneously.

In addition, the indoor intake vent 210 and the outdoor intake vent 220 are located at the same side of the housing 240. At this time, in the process of switching the valve plate 260 between the open state and the closed state of the outdoor intake vent 220 or the indoor intake vent 210, the valve plate 260 rotates through an angle of 180 °.

The drive mechanism is coupled to the valve plate 260 to drive the valve plate 260 in rotation. Specifically, the driving mechanism is a motor 250; the motor 250 is connected to the housing 240 by screws. The valve plate 260 is provided with a connecting hole, and the output shaft 251 of the motor 250 is correspondingly inserted into the connecting hole and connected to drive the valve plate 260 to rotate. The connection hole may be a square hole, and the insertion end portion of the output shaft 251 of the motor 250 is configured as a square cylinder and can be just inserted into the square hole, so that the valve plate 260 can rotate around the axis of the output shaft 251 when the output shaft 251 rotates. The motor 250 is a forward/reverse motor, and an output shaft 251 thereof can rotate clockwise or counterclockwise.

And, the valve plate 260 is provided with a rotating shaft, the rotating shaft is connected with the housing 240, and the rotating shaft is coaxially arranged with the output shaft 251 of the motor 250, that is, the axis of the rotating shaft coincides with the axis of the output shaft 251. The rotation shaft and the output shaft 251 of the motor 250 are respectively located at both sides of the valve plate 260. Through pivot and output shaft 251 with valve plate 260 be connected for valve plate 260's rotation is more stable, avoids valve plate 260 to appear great rocking when the swing.

The rotating shaft can be integrally formed with the valve plate 260, the housing 240 is correspondingly provided with a shaft hole, and when the valve plate 260 is installed on the housing 240, the rotating shaft is correspondingly inserted into the shaft hole, so that the valve plate 260 can swing around the rotating shaft.

In this embodiment, the bolt 252 is used as a rotating shaft, the valve plate 260 is correspondingly provided with a jack, the housing 240 is correspondingly provided with a screw hole, and after the bolt 252 is screwed into the screw hole, the extending end of the bolt 252 can be inserted into the jack. The bolt 252 can support and position the valve plate 260, so that the output shaft 251 of the motor 250 can be easily inserted into the connecting hole of the valve plate 260.

The air valve 200 adopts the above structural design, and has the advantages of simple structure, stable operation, low manufacturing cost and easy maintenance.

The dehumidifying heater 100 includes a case 130, a compressor 170, a throttle valve, an evaporator 140, a condenser 150, a fan 160, and a heat generating member 180.

The case 130 may be made of a metal material. The case 130 is provided with an air duct, an inlet 120, and an outlet 110. In the present embodiment, the housing 130 is formed by connecting six metal plates, the inlet 120 is disposed on the rear side plate of the housing 130, and the outlet 110 is disposed on the front side plate of the housing 130. The inlet 120 and the outlet 110 are both communicated with an air duct, the inlet 120 is communicated with the air outlet 230, and specifically, the inlet 120 and the air outlet 230 are connected by a connecting air pipe 300.

The evaporator 140, the condenser 150 and the heating element 180 are arranged in the air duct and are sequentially arranged along the air flowing direction, when the air flowing into the air duct passes through the evaporator 140, the air exchanges heat with the evaporator 140, and the heat of the air is absorbed by the evaporator 140 to complete cooling and dehumidifying; a water tank is provided in the case 130 under the evaporator 140, so that water condensed in the air can fall into the water tank for collection. Then, after the air exchanges heat with the condenser 150, the temperature of the air rises, and the water vapor of the air is brought into an unsaturated state to prevent the indoor air from being humid. Finally, the air is heated by the heating element 180, so as to meet the indoor air temperature requirement and improve the indoor comfort.

The evaporator 140, the compressor 170, the condenser 150 and the throttle valve are sequentially connected in a closed loop (or called end-to-end connection) to form a heat pump system, so that the heat of the air can be effectively recycled, and the heat waste is avoided.

In this embodiment, the compressor 170 and the throttle valve are both connected to the box 130, and the compressor 170 and the throttle valve are both located outside the air duct; the throttle valve may be an expansion valve.

The fan 160 is disposed in the air duct. Preferably, the fan 160 is disposed between the condenser 150 and the heat generating member 180. The blower 160 is arranged between the condenser 150 and the heating element 180, so that air with high humidity can be prevented from entering the blower 160 under the action of negative pressure generated by the blower 160, and the normal operation of the blower 160 is prevented from being influenced.

Preferably, the heat generating member 180 is a thermistor heater, preferably a positive temperature coefficient thermistor heater (i.e., a PTC heater). The PTC heater is also called as a PTC heating body, is composed of PTC ceramic heating elements and an aluminum pipe, has the advantages of automatic constant temperature, reliable work, non-conduction, high heat efficiency and long service life, and can not be damaged when the fan 160 stops working.

The working flow of the dehumidification warm air device is as follows:

as shown in fig. 1, after the warm air dehumidification mode (i.e., the indoor air internal circulation mode) is turned on, the fan 160 operates, and the driving mechanism drives the valve plate 260 to rotate until the valve plate 260 closes the outdoor air inlet 220, so that the indoor air flows into the air cavity through the indoor air inlet 210, and flows into the air duct through the air outlet 230, the connecting air pipe 300, and the inlet 120 in sequence. In the air duct, after the air passes through the evaporator 140, the condenser 150 and the heating element 180 in sequence for heat exchange, the air humidity is promoted to be reduced and the temperature is promoted to be increased, the requirement of the indoor air temperature and humidity is met, and finally the air flows into the room through the outlet 110, and finally the dehumidification and drying circulation of the indoor air is realized.

As shown in fig. 2, after the fresh air mode is turned on (i.e., fresh outdoor air is introduced), the fan 160 operates, and the driving mechanism drives the valve plate 260 to rotate until the valve plate 260 closes the indoor air inlet 210, so that the fresh outdoor air flows into the air cavity through the outdoor air inlet 220, and flows into the air duct through the air outlet 230, the connecting air pipe 300, and the inlet 120 in sequence. In the wind channel, fresh air passes through evaporimeter 140, condenser 150 and the piece 180 heat transfer that generates heat in proper order after, impels air humidity to descend, the temperature rises, accords with indoor air temperature and humidity requirement, flows into indoor through export 110 at last, finally realizes leading indoor (or called as leading new trend) effect with outdoor fresh air to can carry out the dehumidification stoving to outdoor fresh air.

This dehumidification warm braw device passes through actuating mechanism and drives valve plate 260 and rotate, and then control indoor air intake 210 and outdoor air intake 220 and be in one and open one closed state to can switch between indoor air cycle mode and new trend mode. The inlet 120 of the box 130 is communicated with the air outlet 230, and the evaporator 140, the condenser 150 and the heating element 180 are sequentially arranged in the air channel of the box 130 along the air flowing direction, so that the air flowing into the air channel can be sequentially dehumidified and heated, and the air flowing into the room can meet the user requirements.

By means of the air valve 200 and the dehumidifying heater 100, the indoor circulating air can be dehumidified and dried, fresh air can be introduced into the room and dehumidified and dried, and therefore indoor comfort is improved.

In some embodiments, the damper 200 further includes an air filter 270. The air filter 270 serves to filter air entering the dehumidifying heater 100. Preferably, the air filter 270 is an air filter, preferably a high efficiency air filter (also called HEPA filter), the high efficiency air filter is a disposable dry high efficiency air filter, and is made of laminated borosilicate microfiber, the filtering efficiency of the filter to particles larger than or equal to 0.3 μm is more than 99.97%, the filter can efficiently filter out suspended particles in air, the air filter 270 is disposed in the air cavity, and the air filter 270 is located at the air outlet 230 instead of the indoor air inlet 210 and the outdoor air inlet 220, so that the use cost of the air filter can be saved.

In this embodiment, the housing 240 has a slot in the air chamber, and the air filter 270 can be directly inserted into the slot for fixing. Before the air flows out of the air cavity through the air outlet 230, the air filter 270 removes impurities from the air in a highly efficient manner.

Of course, the air filter 270 may be disposed at the indoor air inlet 210 and the outdoor air inlet 220, respectively, to filter impurities from the indoor air and the outdoor air before the air enters the air chamber.

In some embodiments, the output shaft 251 of the motor 250 is provided with induction fins 290. The sensing piece 290 may be made of metal or plastic. The sensor piece 290 is fixed to the output shaft 251 of the motor 250 by screws and can rotate together with the output shaft 251. The sensing piece 290 may be a plate body fixed to the output shaft 251.

The damper 200 further includes: a first limit switch 281, a second limit switch 282, and a controller.

The first limit switch 281 and the second limit switch 282 may be, but are not limited to, a slot type photoelectric switch, a micro switch, or the like. The first limit switch 281 and the second limit switch 282 are both groove-type photoelectric switches.

The controller may be, but is not limited to, a PLC controller.

When the valve plate 260 closes the indoor air inlet 210, the first limit switch 281 is triggered by the sensing piece 290 to generate a first trigger signal. In this embodiment, the first limit switch 281 is a slot-type photoelectric switch; when the motor 250 drives the valve plate 260 to rotate, the sensing piece 290 rotates along with the valve plate 260; when the valve plate 260 closes the indoor air inlet 210, the sensing piece 290 moves to a sensing position of the groove-shaped photoelectric switch, and the transmission of the light beam is cut off, so that the groove-shaped photoelectric switch is triggered by the sensing piece 290 to generate a first trigger signal.

The first limit switch 281 and the motor 250 are electrically connected to a controller, respectively, and the controller is configured to generate a first control signal after receiving a first trigger signal of the first limit switch 281, control the motor 250 to stop working, and prevent the motor 250 from continuing working after the valve plate 260 closes the indoor air inlet 210, which may damage the motor 250.

When the valve plate 260 closes the outdoor air inlet 220, the second limit switch 282 is triggered by the sensing piece 290 to generate a second trigger signal. In this embodiment, the second limit switch 282 is a slot-type photoelectric switch; when the motor 250 drives the valve plate 260 to rotate, the sensing piece 290 rotates along with the valve plate 260; when the valve plate 260 closes the outdoor air inlet 220, the sensing piece 290 moves to a sensing position of the groove-shaped photoelectric switch, and the transmission of the light beam is cut off, so that the groove-shaped photoelectric switch is triggered by the sensing piece 290 to generate a second trigger signal.

The second limit switch 282 and the motor 250 are electrically connected to the controller, and the controller is configured to generate a second control signal after receiving a second trigger signal of the second limit switch 282 to control the motor 250 to stop working, so as to prevent the motor 250 from continuing to operate after the valve plate 260 closes the outdoor air inlet 220, which may damage the motor 250.

Of course, instead of using a limit switch to control the motor stop, the motor 250 may be configured as a servo motor that converts a received electrical signal into an angular displacement or velocity output on the motor shaft to precisely control the position of the valve plate 260.

In some embodiments, the damper 200 further comprises a first sealant strip 211 and a second sealant strip 221.

In this embodiment, the first sealing rubber strip 211 may be connected to an inner wall surface of the housing 240 by an adhesive, and is located at the indoor air inlet 210, when the valve plate 260 closes the indoor air inlet 210, a surface of the valve plate 260 correspondingly contacts the inner wall surface of the housing 240, and the first sealing rubber strip 211 is disposed between contact surfaces of the valve plate 260 and the housing 240, so that the valve plate 260 and the inner wall surface of the housing 240 are in close contact, and an air leakage phenomenon is avoided.

The second sealing rubber strip 221 and the inner wall surface of the housing 240 can be connected through an adhesive and is located at the outdoor air inlet 220, when the valve plate 260 closes the outdoor air inlet 220, the surface of the valve plate 260 correspondingly contacts with the inner wall surface of the housing 240, and the second sealing rubber strip 221 is arranged between the contact surfaces, so that the valve plate 260 is in close contact with the inner wall surface of the housing 240, and the air leakage phenomenon is avoided.

Of course, the first sealing rubber strip 211 and the second sealing rubber strip 221 may be correspondingly arranged on the opposite surfaces of the valve plate 260.

In some embodiments, the dehumidifying heater 100 further includes a negative ion generator 190. The negative ion generator 190 is disposed in the air duct. In the present embodiment, the negative ion generator 190 is provided between the outlet 110 and the heat generating member 180. Set up anion generator 190 in the wind channel, can disinfect to the air that will flow into indoor, play the purification effect, improve the cleanliness factor of room air.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (10)

1. A dehumidifying warm air device, comprising:

an air valve (200) comprising a housing (240), a valve plate (260), and a drive mechanism; the shell (240) is provided with an air cavity, an indoor air inlet (210), an outdoor air inlet (220) and an air outlet (230); the indoor air inlet (210), the outdoor air inlet (220) and the air outlet (230) are communicated with the air cavity; the indoor air inlet (210) and the outdoor air inlet (220) are respectively positioned on two adjacent side surfaces or the same side surface of the shell (240); the valve plate (260) is arranged in the air cavity, and the valve plate (260) can be rotatably arranged to enable the indoor air inlet (210) and the outdoor air inlet (220) to be in an open-close or open-close state; the driving mechanism is connected with the valve plate (260) to drive the valve plate (260) to rotate;

a dehumidifying heater (100) including a case (130), a compressor (170), a throttle valve, an evaporator (140), a condenser (150), a fan (160), and a heat generating member (180); the box body (130) is provided with an air duct, an inlet (120) and an outlet (110); the inlet (120) and the outlet (110) are both communicated with an air duct, and the inlet (120) is communicated with the air outlet (230); the evaporator (140), the condenser (150) and the heating element (180) are arranged in the air channel and are sequentially arranged along the air flowing direction; the fan (160) is arranged in the air duct; the evaporator (140), the compressor (170), the condenser (150) and the throttle valve are sequentially connected in a closed loop manner.

2. The dehumidifying heating device according to claim 1, wherein the air valve (200) further includes an air filter (270); the air filter (270) is used for filtering air entering the dehumidifying heater (100).

3. The dehumidifying heating device according to claim 2, wherein the air filter (270) is an air filter, the air filter (270) is disposed in the air chamber, and the air filter (270) is located at the air outlet (230).

4. A dehumidifying heating device as claimed in any one of claims 1 to 3, wherein said driving mechanism is a motor (250); the motor (250) is connected with the shell (240); the valve plate (260) is provided with a connecting hole, and an output shaft (251) of the motor (250) is correspondingly inserted into the connecting hole and connected with the connecting hole so as to drive the valve plate (260) to rotate; the valve plate (260) is provided with a rotating shaft, the rotating shaft is connected with the shell (240), the rotating shaft is coaxially arranged with an output shaft (251) of the motor (250), and the rotating shaft and the output shaft (251) of the motor (250) are respectively positioned on two sides of the valve plate (260).

5. The dehumidifying warm-air device according to claim 4, wherein the output shaft (251) of the motor (250) is provided with an induction plate (290); the air valve (200) further comprises:

a first limit switch (281); when the valve plate (260) closes the indoor air inlet (210), the first limit switch (281) is triggered by the sensing piece (290) to generate a first trigger signal;

a controller; the first limit switch (281) and the motor (250) are respectively electrically connected with the controller, and the controller generates a first control signal after receiving a first trigger signal of the first limit switch (281) to control the motor (250) to stop working.

6. The dehumidifying warm-air device according to claim 5, wherein the air valve (200) further includes a second limit switch (282); when the valve plate (260) closes the outdoor air inlet (220), the second limit switch (282) is triggered by the sensing piece (290) to generate a second trigger signal; the second limit switch (282) and the motor (250) are respectively electrically connected with the controller, and the controller generates a second control signal after receiving a second trigger signal of the second limit switch (282) to control the motor (250) to stop working.

7. The dehumidifying warm-air device according to claim 6, wherein the air valve (200) further comprises a first sealing rubber strip (211) and a second sealing rubber strip (221); the first sealing rubber strip (211) is connected with the inner wall surface of the shell (240) and located at the indoor air inlet (210), and the second sealing rubber strip (221) is connected with the inner wall surface of the shell (240) and located at the outdoor air inlet (220).

8. The dehumidifying warm air device according to claim 6, wherein the dehumidifying heater (100) further comprises a negative ion generator (190); the negative ion generator (190) is arranged in the air duct.

9. The dehumidifying warm-air device according to claim 8, wherein the fan (160) is provided between the condenser (150) and the heat generating member (180).

10. A dehumidifying heating device as claimed in claim 9, wherein said heat generating member (180) is a thermistor heater.

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