CN215112868U

CN215112868U - Indoor warm air blower

Info

Publication number: CN215112868U
Application number: CN202121658794.2U
Authority: CN
Inventors: 郭满明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-10
Anticipated expiration: 2031-07-20

Abstract

The utility model provides an indoor electric fan heater relates to electric fan heater technical field. The utility model provides an indoor warm air blower, includes casing, the control unit, hot-blast subassembly and air-out subassembly, is provided with the division board in the casing, and the division board separates the casing for first cavity and second cavity. The hot air assembly comprises a hot water tank, a circulating pump and a radiator, the hot water tank is arranged in the first cavity, and the radiator is arranged in the second cavity. A first pipe body is arranged between the liquid outlet end of the hot water tank and the liquid inlet end of the radiator and is respectively communicated with the liquid outlet end of the hot water tank and the liquid inlet end of the radiator. A second pipe body is arranged between the liquid inlet end of the hot water tank and the liquid outlet end of the radiator, and the second pipe body is respectively communicated with the liquid inlet end of the hot water tank and the liquid outlet end of the radiator. The circulating pump is connected in series on the first pipe body, and the control unit is connected with the circulating pump and used for controlling the action of the circulating pump. The utility model discloses can avoid the discharged hot-blast burnt flavor of sticking with paste that appears, the warm braw that blows off is fresh and natural, brings better experience for the user and feels.

Description

Indoor warm air blower

Technical Field

The utility model relates to a fan heater technical field particularly, relates to an indoor fan heater.

Background

The warm air blower is a combined unit formed by combining a ventilator, a motor and an air heater. The air-conditioning system is suitable for various workshops, and can be used for heating circulating air when the air does not contain dust and flammable or explosive gas. Along with the improvement of living standard of people, the requirement on the comfort level in the home and office environment is higher and higher. The proper indoor temperature is one of the most important links in the environmental comfort. Currently, many consumers choose fan heaters to heat the indoor environment. Larger fan heaters are more common in the market, and are suitable for heating the whole room. Due to the need for local heating, small-sized heating devices are continuously available on the market. Small heating devices are popular with consumers due to their portability. The existing small household fan heater generally adopts an electric heating mode, ambient air is heated through a heating tube or a resistance wire, and airflow is introduced to enable the airflow to enter the heating tube or the resistance wire to be heated and then to be discharged out of the fan heater. The fan heater is easy to suck external impurities when external air is introduced, the external impurities enter the heating tube or the resistance wire along with air flow, if the fan heater is in contact with the heating tube or the resistance wire, because the heating source such as the heating tube or the resistance wire has high temperature, burnt taste is easy to generate, and the taste is discharged along with the air flow, so that bad experience feeling is brought to people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an indoor electric fan heater, it can avoid the discharged hot-blast burnt flavor of sticking with paste that appears, and the warm-air that blows off is fresh and natural, brings better experience for the user and feels.

The embodiment of the utility model is realized like this:

the embodiment of the application provides an indoor warm air blower, which comprises a casing, a control unit, a hot air assembly and an air outlet assembly, wherein a partition plate is arranged in the casing and divides the casing into a first cavity and a second cavity;

the hot air assembly comprises a hot water tank, a circulating pump and a radiator, the hot water tank is arranged in a first cavity, the radiator is arranged in a second cavity, a first pipe body is arranged between a liquid outlet end of the hot water tank and a liquid inlet end of the radiator, the first pipe body is respectively communicated with the liquid outlet end of the hot water tank and the liquid inlet end of the radiator, a second pipe body is arranged between the liquid inlet end of the hot water tank and the liquid outlet end of the radiator, the second pipe body is respectively communicated with the liquid inlet end of the hot water tank and the liquid outlet end of the radiator, the circulating pump is connected on the first pipe body in series, and the control unit is connected with the circulating pump and used for controlling the action of the circulating pump;

an air inlet and an air outlet are formed in the shell, the second cavity is communicated with the air inlet and the air outlet respectively, and the air outlet assembly is arranged at the air outlet.

The utility model discloses an in some embodiments, above-mentioned air-out subassembly includes the fan, and the fan setting is in the gas outlet department of second cavity, and the control unit is connected with the fan for control fan action.

In some embodiments of the present invention, an electric heating plate for heating the hot water tank is disposed on the hot water tank, and the electric heating plate is connected to the control unit.

In some embodiments of the present invention, the hot water tank is provided with a first heat insulation layer, and the electric heating plate is disposed between the hot water tank and the first heat insulation layer.

In some embodiments of the present invention, a check valve is connected in series to the second pipe body.

The utility model discloses an in some embodiments, two through-holes have been seted up on the above-mentioned division board, and two through-holes are used for passing first body and second body respectively, and all are provided with the sealing ring between first body and second body and the division board.

In some embodiments of the present invention, a second insulating layer is disposed on the first pipe body and the second pipe body.

In some embodiments of the present invention, a plurality of first temperature sensors are evenly distributed in the second chamber, and the plurality of first temperature sensors are all connected to the control unit.

In some embodiments of the present invention, a command input end is disposed on the housing, and the command input end is connected to the control unit.

In some embodiments of the present invention, a thermal insulation layer is disposed on an inner wall of the second chamber.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

the utility model provides an indoor electric fan heater, including casing, the control unit, hot-blast subassembly and air-out subassembly, above-mentioned casing is used for keeping apart hot-blast subassembly and the external world, and above-mentioned hot-blast subassembly is used for producing the hot-air, and above-mentioned air-out subassembly is used for the hot-air exhaust casing, supplies the user to keep warm. A partition plate is arranged in the machine shell and divides the machine shell into a first cavity and a second cavity. The hot air assembly comprises a hot water tank, a circulating pump and a radiator. The hot water tank is arranged in the first cavity, and the radiator is arranged in the second cavity. A first pipe body is arranged between the liquid outlet end of the hot water tank and the liquid inlet end of the radiator and is respectively communicated with the liquid outlet end of the hot water tank and the liquid inlet end of the radiator. A second pipe body is arranged between the liquid inlet end of the hot water tank and the liquid outlet end of the radiator, and the second pipe body is respectively communicated with the liquid inlet end of the hot water tank and the liquid outlet end of the radiator. The circulating pump is connected in series on the first pipe body, and the control unit is connected with the circulating pump and used for controlling the action of the circulating pump. In the hot air assembly, the hot water tank is used for providing hot cooling liquid for the radiator, the hot cooling liquid flows into the core of the radiator, and air passes through the core of the radiator. The hot cooling liquid cools down as it radiates heat to the air, and the cold air heats up as it absorbs the heat radiated by the cooling liquid, thereby achieving the effect of heating the air around the radiator. The first pipe body is used for enabling hot cooling liquid to enter the core of the radiator, and the second pipe body is used for enabling the cooling liquid after heat exchange to enter the hot water tank from the radiator, so that a circulation passage of the cooling liquid is formed. The circulating pump is used for providing a pressure for the hot cooling liquid in the hot water tank, so that the cooling liquid can circularly flow in the circulating passage, and the purposes of continuously exchanging heat between the cooling liquid and the external air and heating the surrounding air are achieved. An air inlet and an air outlet are formed in the casing, the second cavity is communicated with the air inlet and the air outlet respectively, and the air outlet assembly is arranged at the air outlet. The part that above-mentioned air needs to add is actually in the second cavity, consequently sets up the air-out subassembly in gas outlet department, can make the air-out subassembly constantly extract the hot-air escape in the second cavity and be used for the heating. Meanwhile, under the action of the atmospheric pressure, the external cooler air enters the second chamber along the air inlet. Therefore, the heating device can continuously provide heating for users, and meanwhile, impurities in the air are not in contact with a heating source, so that unpleasant gases such as burnt smell and the like are not easy to generate, and better experience can be brought to the users.

Therefore, the indoor warm air blower can avoid the hot air exhausted from the indoor warm air blower from being burnt and burnt, the blown warm air is fresh and natural, and better experience is brought to users.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural view of a hot water tank according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a second insulating layer in the embodiment of the present invention;

fig. 5 is a control block diagram of an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of the partition plate in the embodiment of the present invention.

Icon: 1-a machine shell, 2-an air outlet, 3-a fan, 4-a heat insulation layer, 5-a partition plate, 6-a one-way valve, 7-a second pipe body, 8-an air inlet, 9-an air inlet pipe, 10-a first chamber, 11-a hot water tank, 12-an electric heating sheet, 13-a circulating pump, 14-the first pipe body, 15-a radiator, 16-a second chamber, 17-a second heat insulation layer, 18-a sealing ring, 19-a through hole, 20-the first heat insulation layer, 21-a second temperature sensor and 22-a first temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2 if appearing.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Please refer to fig. 1, fig. 1 shows a schematic structural diagram of an embodiment of the present invention, and the present embodiment provides an indoor fan heater, which includes a casing 1, a control unit, a hot air assembly and an air outlet assembly, wherein the casing 1 is used for isolating the hot air assembly from the outside, the hot air assembly is used for generating hot air, and the air outlet assembly is used for discharging the hot air out of the casing 1 for heating. A partition plate 5 is provided in the casing 1, and the partition plate 5 partitions the casing 1 into a first chamber 10 and a second chamber 16. The hot air unit includes a hot water tank 11, a circulation pump 13, and a radiator 15. The hot water tank 11 is disposed in the first chamber 10, and the radiator 15 is disposed in the second chamber 16. A first pipe body 14 is arranged between the liquid outlet end of the hot water tank 11 and the liquid inlet end of the radiator 15, and the first pipe body 14 is communicated with the liquid outlet end of the hot water tank 11 and the liquid inlet end of the radiator 15 respectively. A second pipe body 7 is arranged between the liquid inlet end of the hot water tank 11 and the liquid outlet end of the radiator 15, and the second pipe body 7 is respectively communicated with the liquid inlet end of the hot water tank 11 and the liquid outlet end of the radiator 15. The circulating pump 13 is connected in series on the first pipe body 14, and the control unit is connected with the circulating pump 13 and used for controlling the action of the circulating pump 13.

In the present embodiment, the hot water tank 11 in the hot air module is used to supply hot coolant to the heat sink 15, the hot coolant flows into the core of the heat sink 15, and air passes through the core of the heat sink 15. The hot coolant cools down by radiating heat to the air, and the cold air heats up by absorbing the heat radiated from the coolant, thereby achieving the effect of heating the air around the radiator 15. The first pipe 14 is used to introduce the hot coolant into the core of the radiator 15, and the second pipe 7 is used to introduce the heat-exchanged coolant from the radiator 15 into the hot water tank 11, thereby forming a circulation path of the coolant. The circulation pump 13 is used for providing a pressure to the hot coolant in the hot water tank 11, so that the coolant can circulate in the circulation path, and the purpose of continuously exchanging heat between the coolant and the outside air to heat the surrounding air is achieved.

In this embodiment, the casing 1 has an air inlet 8 and an air outlet 2, the second chamber 16 is respectively communicated with the air inlet 8 and the air outlet 2, and the air outlet assembly is disposed at the air outlet 2. The part that above-mentioned air needs to add is actually in second chamber 16, consequently sets up the air-out subassembly in 2 departments of gas outlet, can make the air-out subassembly constantly extract the hot-air discharge in the second chamber 16 and be used for the heating. At the same time, the external cooler air enters the second chamber 16 along the air inlet 8 under the effect of atmospheric pressure. Therefore, the heating device can continuously provide heating for users, and meanwhile, impurities in the air are not in contact with a heating source, so that unpleasant gases such as burnt smell and the like are not easy to generate, and better experience can be brought to the users.

Referring to fig. 1, in some embodiments of the present invention, the air outlet assembly includes a fan 3, the fan 3 is disposed at the air outlet 2 of the second chamber 16, and the control unit is connected to the fan 3 for controlling the operation of the fan 3.

In this embodiment, after the blades of the fan 3 rotate, the air that presses the force-bearing surface (upper portion) in a beveling manner moves in a direction perpendicular to the surface of the blades when the blades rotate. Because the fan blades are angled, the fan blades push air at an angle (which needs to be able to break up a force up-perpendicular to the plane of rotation). When the fan blades rotate, air on the upper part is forced to flow away, and negative pressure is generated at the original position. While the lower air "flows into" this region due to the negative pressure, creating an air flow. Thereby, the air heated in the second chamber 16 is drawn out by the rotation of the fan blades and is discharged along the air outlet 2.

Referring to fig. 1 and 3, in some embodiments of the present invention, an electric heating plate 12 for heating the hot water tank 11 is disposed on the hot water tank 11, and the electric heating plate 12 is connected to the control unit.

In this embodiment, the electric heating plate 12 is used for heating the coolant in the hot water tank 11, so that the coolant can always keep a high temperature when entering the radiator 15 along the first pipe 14, thereby facilitating heat exchange with the outside air after entering the radiator 15. The control unit is used for controlling the power and the opening and closing of the electric heating plate 12, so as to achieve the purpose of adjusting the temperature of the cooling liquid in the hot water tank 11.

Referring to fig. 3, in the present embodiment, a second temperature sensor 21 is disposed in the hot water tank 11, the second temperature sensor 21 is connected to the control unit, and is used for detecting the temperature in the hot water tank 11 in real time when the electric heating plate 12 works, and transmitting the detected temperature information to the control unit, and the control unit analyzes and determines the temperature information and controls the power of the electric heating plate 12 according to the determination result. Thereby, the purpose of dynamically adjusting the temperature of the cooling liquid in the hot water tank 11 is achieved.

Referring to fig. 3, in some embodiments of the present invention, a first thermal insulation layer 20 is sleeved outside the hot water tank 11, and the electric heating plate 12 is disposed between the hot water tank 11 and the first thermal insulation layer 20.

In this embodiment, the first thermal insulation layer 20 can be used to insulate the hot water tank 11, so as to prevent the heat loss of the coolant in the hot water tank 11 and the waste of energy consumption.

Referring to fig. 1, in some embodiments of the present invention, a check valve 6 is connected in series to the second pipe 7. The check valve 6 prevents the coolant in the hot water tank 11 from flowing back to the radiator 15 along the outlet side of the radiator 15.

Referring to fig. 1, 2 and 6, in some embodiments of the present invention, the partition plate 5 is provided with two through holes 19, the two through holes 19 are respectively used for passing through the first tube 14 and the second tube 7, and a sealing ring 18 is disposed between the partition plate 5 and each of the first tube 14 and the second tube 7.

Referring to fig. 1, it should be noted that the air inlet 8 is formed on the machine body at the side of the first chamber 10, and the air inlet 8 passes through the partition plate 5 through an air inlet pipe 9 and is communicated with the second chamber 16.

In the present embodiment, one of the two through holes 19 of the partition plate 5 is used for passing through the first tube 14, and the other is used for passing through the second tube 7. Since the first tube 14 and the second tube 7 have a gap through the corresponding through holes 19, the heated air in the second chamber 16 may enter the first chamber 10, resulting in heat waste.

Referring to fig. 4, in some embodiments of the present invention, a second insulating layer 17 is disposed on both the first pipe 14 and the second pipe 7. The second insulating layer 17 covering the first pipe body 14 and the second pipe body 7 can play a role in insulating heat, and can prevent heat in the first pipe body 14 or the second pipe body 7 from being dissipated into the first chamber 10.

Referring to fig. 1 and 5, in some embodiments of the present invention, a plurality of first temperature sensors 22 are uniformly distributed in the second chamber 16, and the plurality of first temperature sensors 22 are all connected to the control unit. The first temperature sensors 22 are used for detecting the temperature in the second chamber 16, the temperature in the second chamber 16 reflects the temperature of the hot air therein, and the plurality of first temperature sensors 22 can detect a plurality of sets of temperature data. After the plurality of groups of temperature data are transmitted to the control unit, the control unit can analyze and calculate the data, calculate an average temperature value by a weighted average method, and control the operation of the circulating pump 13 by the control unit according to the average temperature value, so as to achieve the purpose of controlling the temperature of the output hot air.

Referring to fig. 5, in some embodiments of the present invention, the housing 1 is provided with a command input end, and the command input end is connected to the control unit. In this embodiment, the command input terminal is a touch display screen, the touch display screen can display a touch key position, and the control unit can control the display screen to display the average temperature value analyzed and calculated.

Referring to fig. 1, in some embodiments of the present invention, an insulating layer 4 is disposed on an inner wall of the second chamber 16. The heat insulation layer 4 prevents heat loss due to heat exchange between the hot air and the outside through the wall of the cabinet 1.

When in use, a start command is input through the touch display screen, and the control unit controls the electric heating sheet 12 to heat the cooling liquid in the hot water tank 11 and controls the fan 3 and the circulating pump 13 to work. After the coolant is heated, the coolant enters the radiator 15 through the circulation pump 13, the coolant enters the core of the radiator 15, the hot coolant enters the core of the radiator 15 and flows, and air passes through the outside of the core of the radiator 15. The hot coolant cools down by radiating heat to the air, and the cold air heats up by absorbing the heat radiated from the coolant, thereby achieving the effect of heating the air around the radiator 15. After the air in the second chamber 16 is heated, the fan 3 draws out the hot air to provide warm air for the user.

To sum up, the embodiment of the utility model provides an indoor electric fan heater, including casing 1, the control unit, hot-blast subassembly and air-out subassembly, above-mentioned casing 1 is used for keeping apart hot-blast subassembly and the external world, and above-mentioned hot-blast subassembly is used for producing the hot-air, and above-mentioned air-out subassembly is used for hot-air exhaust casing 1, supplies the user heating. A partition plate 5 is provided in the casing 1, and the partition plate 5 partitions the casing 1 into a first chamber 10 and a second chamber 16. The hot air unit includes a hot water tank 11, a circulation pump 13, and a radiator 15. The hot water tank 11 is disposed in the first chamber 10, and the radiator 15 is disposed in the second chamber 16. A first pipe body 14 is arranged between the liquid outlet end of the hot water tank 11 and the liquid inlet end of the radiator 15, and the first pipe body 14 is communicated with the liquid outlet end of the hot water tank 11 and the liquid inlet end of the radiator 15 respectively. A second pipe body 7 is arranged between the liquid inlet end of the hot water tank 11 and the liquid outlet end of the radiator 15, and the second pipe body 7 is respectively communicated with the liquid inlet end of the hot water tank 11 and the liquid outlet end of the radiator 15. The circulating pump 13 is connected in series on the first pipe body 14, and the control unit is connected with the circulating pump 13 and used for controlling the action of the circulating pump 13. In the hot air unit, the hot water tank 11 is used to supply hot coolant to the radiator 15, the hot coolant flows into the core of the radiator 15, and air passes through the core of the radiator 15. The hot coolant cools down by radiating heat to the air, and the cold air heats up by absorbing the heat radiated from the coolant, thereby achieving the effect of heating the air around the radiator 15. The first pipe 14 is used to introduce the hot coolant into the core of the radiator 15, and the second pipe 7 is used to introduce the heat-exchanged coolant from the radiator 15 into the hot water tank 11, thereby forming a circulation path of the coolant. The circulation pump 13 is used for providing a pressure to the hot coolant in the hot water tank 11, so that the coolant can circulate in the circulation path, and the purpose of continuously exchanging heat between the coolant and the outside air to heat the surrounding air is achieved. The air inlet 8 and the air outlet 2 are formed in the casing 1, the second chamber 16 is communicated with the air inlet 8 and the air outlet 2 respectively, and the air outlet assembly is arranged at the air outlet 2. The part that above-mentioned air needs to add is actually in second chamber 16, consequently sets up the air-out subassembly in 2 departments of gas outlet, can make the air-out subassembly constantly extract the hot-air discharge in the second chamber 16 and be used for the heating. At the same time, the external cooler air enters the second chamber 16 along the air inlet 8 under the effect of atmospheric pressure. Therefore, the heating device can continuously provide heating for users, and meanwhile, impurities in the air are not in contact with a heating source, so that unpleasant gases such as burnt smell and the like are not easy to generate, and better experience can be brought to the users. Therefore, the indoor warm air blower can avoid the hot air exhausted from the indoor warm air blower from being burnt and burnt, the blown warm air is fresh and natural, and better experience is brought to users.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An indoor warm air blower is characterized by comprising a casing, a control unit, a hot air assembly and an air outlet assembly, wherein a partition plate is arranged in the casing and divides the casing into a first cavity and a second cavity;

the hot air assembly comprises a hot water tank, a circulating pump and a radiator, the hot water tank is arranged in the first cavity, the radiator is arranged in the second cavity, a first pipe body is arranged between the liquid outlet end of the hot water tank and the liquid inlet end of the radiator and is respectively communicated with the liquid outlet end of the hot water tank and the liquid inlet end of the radiator, a second pipe body is arranged between the liquid inlet end of the hot water tank and the liquid outlet end of the radiator and is respectively communicated with the liquid inlet end of the hot water tank and the liquid outlet end of the radiator, the circulating pump is connected in series with the first pipe body, and the control unit is connected with the circulating pump and is used for controlling the circulating pump to act;

the air outlet assembly is arranged at the air outlet.

2. The indoor fan heater according to claim 1, wherein the air outlet assembly comprises a fan, the fan is disposed at an air outlet of the second chamber, and the control unit is connected to the fan and used for controlling the fan to act.

3. An indoor unit heater according to claim 1, wherein the hot water tank is provided with an electric heating plate for heating the hot water tank, and the electric heating plate is connected with the control unit.

4. An indoor unit heater according to claim 3, wherein the hot water tank is sheathed with a first heat insulating layer, and the electric heating sheet is arranged between the hot water tank and the first heat insulating layer.

5. An indoor unit heater according to claim 1, wherein a one-way valve is connected in series to the second pipe body.

6. The indoor warm air blower according to claim 1, wherein the partition plate is provided with two through holes, the two through holes are respectively used for penetrating through the first tube body and the second tube body, and sealing rings are arranged between the first tube body and the partition plate and between the second tube body and the partition plate.

7. An indoor unit heater according to any one of claims 1 to 6, wherein the first and second tubular bodies are coated with a second insulating layer.

8. The indoor fan heater according to claim 1, wherein a plurality of first temperature sensors are uniformly distributed in the second chamber, and are connected to the control unit.

9. An indoor fan heater according to claim 8, characterised in that the housing is provided with a command input, which is connected to the control unit.

10. An indoor unit heater according to claim 1, characterised in that the inner wall of the second chamber is provided with a thermally insulating layer.