Heating device

Abstract

The utility model relates to an air heater which comprises an indoor unit and an outdoor unit connected with the indoor unit through a pipeline, the indoor unit comprises a shell, a condenser, a fan assembly and a flow guide part, the condenser, the fan assembly and the flow guide part are arranged in the shell, and the outdoor unit can provide high-temperature and high-pressure gaseous refrigerants for the condenser of the indoor unit. A refrigerant is condensed in the condenser to release a large amount of heat, and when the fan assembly works, air flow is sucked in at the air inlet of the shell, and the sucked air flow is conveyed to the condenser to absorb heat. According to the position relation between the air outlet direction of the fan assembly and the condenser, the flow guide piece is arranged in the channel between the air outlet end of the fan assembly and the condenser, the flow guide piece is used for adjusting the direction of part of airflow exhausted by the fan assembly, the airflow exhausted by the fan assembly covers the whole condenser as much as possible, the contact area of the airflow and the condenser is increased, and the air flow efficiency is improved. Therefore, more heat can be absorbed in unit time, the heat absorption efficiency of airflow is improved, and a better hot air effect is obtained.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a heating device. Background Art

[0002] Air energy heating, as an emerging heating method, has attracted much attention in recent years. Compared with traditional coal-fired, gas-fired and electric heating, air energy heating has many unique advantages.

[0003] Air-source heating utilizes air-source heat pump technology, utilizing low-grade energy in the air and converting it into high-grade energy through electricity to provide heating. This heating method eliminates the need for traditional energy sources like gas and oil, and therefore produces no pollutants like carbon dioxide, significantly impacting environmental protection. Furthermore, air-source heating boasts a very high energy efficiency ratio, typically exceeding 3-4, making it more energy-efficient than traditional electric heaters and gas-fired heating.

[0004] However, most of the air-source heat pump heaters currently on the market do not have high enough heat utilization rates during the heat release process of the condenser, resulting in a lack of heating effect. Utility Model Content

[0005] Based on this, it is necessary to provide a heating device to solve the above problems of the heater based on air energy heat pump.

[0006] A heating device of the present application includes an indoor unit and an outdoor unit, wherein the indoor unit is connected to the outdoor unit via a pipeline, and the outdoor unit is used to output high-temperature and high-pressure gaseous refrigerant to the indoor unit;

[0007] The indoor unit includes a housing, and a condenser, a fan assembly, and a flow guide arranged in the housing;

[0008] The housing is provided with an air inlet and an air outlet, and the fan assembly is used to inhale airflow at the air inlet, guide the airflow into the condenser for absorbing heat, and then discharge the air from the air outlet;

[0009] The guide member is located on the channel between the air outlet end of the fan assembly and the condenser. The guide member is used to change the direction of part of the airflow discharged from the fan assembly to increase the contact area between the airflow and the condenser.

[0010] The heating device disclosed in the present application includes an indoor unit and an outdoor unit connected to the indoor unit through a pipeline. The indoor unit includes a shell, and a condenser, a fan assembly and a guide member arranged in the shell. The outdoor unit can provide high-temperature and high-pressure gaseous refrigerant to the condenser of the indoor unit. The refrigerant condenses in the condenser and releases a large amount of heat. When the fan assembly is working, it sucks air at the air inlet of the shell and transports the sucked air to the condenser to absorb heat; according to the positional relationship between the air outlet direction of the fan assembly and the condenser, a guide member is set in the channel between the air outlet end of the fan assembly and the condenser, and the guide member is used to adjust the direction of the airflow discharged by part of the fan assembly, so that the airflow discharged by the fan assembly covers the entire condenser as much as possible, thereby increasing the contact area between the airflow and the condenser, so that more heat can be absorbed per unit time, and the heat absorption efficiency of the airflow is improved, thereby obtaining a better hot air effect.

[0011] In one embodiment, the fan assembly and the condensing device are distributed in sequence from bottom to top along the height direction of the shell, and the condenser is designed to be inclined relative to the height direction of the shell.

[0012] The heating device in the above embodiment further limits the design of the condenser to an inclined height direction relative to the outer shell, so that the condenser can better contact the airflow discharged by the fan assembly, increase the heat dissipation area, and improve the heat dissipation effect of the condenser; in addition, the inclined design of the condenser helps to discharge condensed water and avoid equipment failure due to water accumulation.

[0013] In one embodiment, the air outlet is distributed at the top of the shell, and the air inlet is distributed at the bottom of the shell.

[0014] The heating device in the above embodiment further defines that the air inlet is opened at the bottom of the shell, and the air outlet is opened at the top of the shell. Specifically, the air outlet, condenser, fan assembly and air inlet are distributed in sequence from top to bottom along the height direction of the shell. After the fan assembly inhales the air flow at the air inlet at the bottom of the shell, it then transports the air flow to the condenser for heat absorption, and finally discharges the air flow with a certain temperature through the air outlet at the top of the shell for heating.

[0015] In one embodiment, the bottom plate and side plate of the shell are respectively provided with a first through hole and a second through hole connected to the air inlet end of the fan assembly, and the second through hole is respectively at the bottom of the side plate of the shell, and the first through hole and the second through hole are both the air inlet.

[0016] The heating device in the above embodiment further defines that both the bottom plate and the side plate of the shell are provided with air inlets, wherein the second through hole on the side plate of the shell serves as an auxiliary air inlet, and the first through hole on the bottom plate of the shell serves as a core air inlet. By distributing the second through hole and the first through hole on the side plate and the bottom plate of the shell, the air intake volume can be increased, the air flow absorbing heat per unit time can be increased, the heating efficiency can be improved, the indoor temperature can reach the set value faster, the heating time can be reduced, and the user experience can be improved.

[0017] In one embodiment, the fan assembly includes a volute air duct, a crossflow fan wheel and a motor. The crossflow fan wheel is installed in the volute air duct and is transmission-connected to the rotating shaft of the motor. The guide member is located above the air outlet end of the volute air duct.

[0018] The heating device in the above embodiment further defines that the fan assembly is composed of at least a volute air duct, a cross-flow impeller and a motor. Based on the above structure, the overall structure of the fan assembly is compact, saving the space occupied by the fan assembly in the outer casing; in addition, the setting of the volute air duct can reduce the noise generated when the air flows, and the airflow generated by the fan assembly is discharged from the volute air duct and can be evenly distributed on the condenser, thereby increasing the contact area between the airflow and the condenser.

[0019] In one embodiment, the volute air duct includes a volute body and a volute tongue, the volute body extends to the bottom of the condenser, the outer shell side wall, the windward surface of the condenser, and the extended part of the volute body enclose a first cavity, the air duct formed by the volute body and the volute tongue is connected to the first cavity, and the guide member is located in the first cavity.

[0020] The heating device in the above embodiment further defines that the air outlet end of the fan assembly, the side wall of the outer shell and the windward surface of the condenser constitute a first cavity, and the airflow discharged from the fan assembly is directly transported to the windward surface of the condenser through the first cavity. A guide member is provided based on the first cavity, and the guide member changes the direction of part of the airflow so that the airflow covers the entire surface of the condenser as much as possible, thereby increasing the contact area between the airflow and the condenser.

[0021] In one embodiment, the number of the guide members is not less than one, and at least one of the guide members is disposed adjacent to the lowest point of the condenser.

[0022] The heating device in the above embodiment further limits the distribution of at least one guide member near the lowest horizontal point of the condenser. Since the vertical projection of the condenser at the lowest horizontal point falls outside the air outlet direction of the fan assembly, it is necessary to use the guide member to guide part of the airflow to the lowest horizontal point of the condenser, so that the airflow discharged by the fan assembly can cover the entire condenser as much as possible, thereby increasing the contact area between the airflow and the condenser.

[0023] In one embodiment, the cross section of the flow guide is arc-shaped.

[0024] The heating device in the above embodiment further limits the cross-section of the guide member to be arc-shaped. When the high-speed airflow discharged by the fan assembly approaches the arc-shaped surface of the guide member, the Coanda effect occurs. When the curved surface of the guide surface is toward the lowest horizontal point of the condenser, the high-speed airflow will move along the curved surface of the guide member and blow toward the lowest horizontal point of the condenser, thereby achieving the goal of covering the entire condenser with the airflow discharged by the fan assembly as much as possible, thereby increasing the contact area between the airflow and the condenser.

[0025] In one embodiment, a wind sweeping plate is provided at the air outlet, and the wind sweeping plate is rotatably connected to the housing. The wind sweeping plate rotates relative to the housing to adjust the wind direction.

[0026] The heating device in the above embodiment further defines a sweeping plate that is rotatably provided at the air outlet of the shell, through which the wind direction can be changed to prevent air from being stagnant in a certain place, thereby making the temperature of the entire space more uniform, avoiding the heat flow from blowing directly to a specific area, and reducing the discomfort caused by excessive temperature difference.

[0027] In one embodiment, the overall shape of the housing is a cuboid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a cross-sectional view of a warm air device in one embodiment;

[0029] Figure 2 FIG. 1 is an exploded view of a heating device in one embodiment.

[0030] Reference numerals:

[0031] 10 indoor unit, 11 housing, 12 condenser, 13 fan assembly, 14 flow guide;

[0032] 111 air sweeping plate, 101 air inlet, 102 air outlet, 103 second through hole, 104 first through hole;

[0033] 131 volute air duct, 1311 volute body, 1312 volute tongue, 132 crossflow impeller, 133 motor, 105 first cavity. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0035] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0036] like Figures 1 to 2 As shown, this embodiment provides a heating device, including an indoor unit 10 and an outdoor unit. The indoor unit 10 is connected to the outdoor unit through a pipeline, and the outdoor unit is used to output high-temperature and high-pressure gaseous refrigerant to the indoor unit 10.

[0037] The indoor unit 10 includes a housing 11, a condenser 12, a fan assembly 13 and a flow guide 14 arranged in the housing 11;

[0038] The housing 11 is provided with an air inlet 101 and an air outlet 102. The fan assembly 13 is used to draw air from the air inlet 101 and direct it to the condenser 12 for heat absorption before being discharged from the air outlet 102.

[0039] The guide member 14 is located on the passage between the air outlet of the fan assembly 13 and the condenser 12 . The guide member 14 is used to change the direction of part of the airflow discharged from the fan assembly 13 to increase the contact area between the airflow and the condenser 12 .

[0040] The outdoor unit can be used to provide high-temperature, high-pressure gaseous refrigerant to the condenser 12 of the indoor unit 10. Specifically, the outdoor unit may include a compressor, a liquid storage tank, a filter, an expander, and an evaporator. The low-temperature, low-pressure liquid refrigerant absorbs heat from the outdoor air in the evaporator, causing the low-temperature, low-pressure liquid refrigerant to evaporate into a gaseous state. The gaseous refrigerant is then transported to the compressor for compression to obtain a high-temperature, high-pressure gaseous refrigerant, which is then transported to the condenser 12 for condensation and heat release. At this time, the airflow generated by the fan assembly 13 is directed to the surface of the condenser 12 to absorb heat, thereby obtaining hot air; the condensed high-pressure and medium-temperature liquid refrigerant is transported to the expansion valve for throttling to reduce its temperature and pressure, so that the refrigerant entering the evaporator becomes wet vapor with a lower saturation temperature.

[0041] The fan assembly 13 can be used to generate airflow. The fan assembly 13 can be, but is not limited to, an axial flow fan or a crossflow fan. For example, the fan assembly 13 is a crossflow fan. Specifically, when the crossflow fan is in operation, it draws air through the air inlet 101 of the housing 11, transports the drawn air to the condenser 12 to absorb heat, and finally discharges the air through the air outlet 102 of the housing 11.

[0042] The guide member 14 can be used to adjust the direction of the airflow from the air outlet 102 of the fan assembly 13. The guide member 14 can be a shell structure with a certain shape. The airflow discharged from the fan assembly 13 changes its original direction after encountering the guide member 14. The guide member 14 is adaptively positioned according to the positional relationship between the air outlet direction of the fan assembly 13 and the condenser 12 so that the airflow discharged from the fan assembly 13 covers the entire condenser 12 as much as possible, increasing the contact area between the airflow and the condenser 12. This allows more heat to be absorbed per unit time, improves the heat absorption efficiency of the airflow, and thus achieves a better hot air effect.

[0043] The heating device in the above embodiment includes an indoor unit 10 and an outdoor unit connected to the indoor unit 10 by a pipeline. The indoor unit 10 includes a shell 11, and a condenser 12, a fan assembly 13 and a flow guide 14 arranged in the shell 11. The outdoor unit can provide high-temperature and high-pressure gaseous refrigerant to the condenser 12 of the indoor unit 10. The refrigerant condenses in the condenser 12 and releases a large amount of heat. When the fan assembly 13 is in operation, it sucks air at the air inlet 101 of the shell 11 and transports the sucked air to the condenser 12 to absorb heat. By setting the flow guide 14 in the channel between the air outlet end of the fan assembly 13 and the condenser 12 according to the positional relationship between the air outlet direction of the fan assembly 13 and the condenser 12, the flow guide 14 is used to adjust the direction of the airflow discharged from part of the fan assembly 13, so that the airflow discharged from the fan assembly 13 covers the entire condenser 12 as much as possible, increasing the contact area between the airflow and the condenser 12, so that more heat can be absorbed per unit time, and the heat absorption efficiency of the airflow is improved, thereby obtaining a better hot air effect.

[0044] like Figure 1 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the fan assembly 13 and the condenser 12 are distributed in sequence from bottom to top along the height direction of the shell 11, and the condenser 12 is designed to be inclined relative to the height direction of the shell 11.

[0045] The above embodiment further specifies that the condenser 12 is designed to be inclined in the height direction relative to the outer shell 11, so that the condenser 12 can better contact the airflow discharged by the fan assembly 13, increase the heat dissipation area, and improve the heat dissipation effect of the condenser 12; in addition, the inclined design of the condenser 12 facilitates the discharge of condensed water, avoiding equipment failure due to water accumulation.

[0046] like Figure 1 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air outlet 102 is distributed at the top of the housing 11 , and the air inlet 101 is distributed at the bottom of the housing 11 .

[0047] The above embodiment further defines that the air inlet 101 is opened at the bottom of the shell 11, and the air outlet 102 is opened at the top of the shell 11. Specifically, the air outlet 102, the condenser 12, the fan assembly 13 and the air inlet 101 are distributed in sequence from top to bottom along the height direction of the shell 11. After the fan assembly 13 inhales the airflow at the air inlet 101 at the bottom of the shell 11, it then transports the airflow to the condenser 12 for heat absorption, and finally discharges the airflow with a certain temperature through the air outlet 102 at the top of the shell 11 for heating.

[0048] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the bottom plate and side plate of the outer shell 11 are respectively provided with a first through hole 104 and a second through hole 103 which are connected to the air inlet end of the fan assembly 13, and the second through hole 103 is respectively at the bottom of the side plate of the outer shell 11, and the first through hole 104 and the second through hole 103 are both air inlets 101.

[0049] The above embodiment further defines that both the bottom plate and the side plate of the shell 11 are provided with an air inlet 101, wherein the second through hole 103 on the side plate of the shell 11 serves as an auxiliary air inlet 101, and the first through hole 104 on the bottom plate of the shell 11 serves as a core air inlet 101. By distributing the second through hole 103 and the first through hole 104 on the side plate of the shell 11 and the bottom plate of the shell 11, the air intake volume can be increased, the air flow absorbing heat per unit time can be increased, the heating efficiency can be improved, the indoor temperature can reach the set value faster, the heating time can be reduced, and the user experience can be improved.

[0050] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the fan assembly 13 includes a volute air duct 131, a cross-flow wind wheel 132 and a motor 133, the cross-flow wind wheel is installed in the volute air duct 131, and the cross-flow wind wheel is transmission-connected to the rotating shaft of the motor 133, and the guide member 14 is located above the air outlet end of the volute air duct 131.

[0051] The above embodiment further defines that the fan assembly 13 is composed of at least a volute air duct 131, a cross-flow impeller 132 and a motor 133. Based on the above structure, the overall structure of the fan assembly 13 is compact, saving the space occupied by the fan assembly 13 in the outer casing 11; in addition, the setting of the volute air duct 131 can reduce the noise generated when the air flows, and the airflow generated by the fan assembly 13 is discharged from the volute air duct 131 and can be evenly distributed on the condenser 12, thereby increasing the contact area between the airflow and the condenser 12.

[0052] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the volute air duct 131 includes a volute body 1311 and a volute tongue 1312, the volute body 1311 extends to the bottom of the condenser 12, the side wall of the outer shell 11, the windward surface of the condenser 12, and the extended part of the volute body 1311 enclose a first cavity 105, the air duct formed by the volute body 1311 and the volute tongue 1312 is connected to the first cavity 105, and the guide member 14 is located in the first cavity 105.

[0053] In the above embodiment, it is further defined that the air outlet end of the fan assembly 13, the side wall of the outer shell 11 and the windward surface of the condenser 12 constitute a first cavity 105. The airflow discharged from the fan assembly 13 is directly transported to the windward surface of the condenser 12 through the first cavity 105. A guide member 14 is provided based on the first cavity 105. The guide member 14 changes the direction of part of the airflow so that the airflow covers the entire surface of the condenser 12 as much as possible, thereby increasing the contact area between the airflow and the condenser 12.

[0054] The air outlet end of the volute body 1311 curves toward the bottom of the condenser 12 and extends to the bottom of the condenser 12. The air outlet end of the volute tongue 1312 abuts the side wall of the outer shell 11. The upper and lower ends of the condenser 12 abut against two opposite side walls of the outer shell 11, respectively. Consequently, the air outlet end of the fan assembly 13, the side walls of the outer shell 11, and the windward surface of the condenser 12 form a first cavity 105. This design avoids the need for additional complex air ducts within the outer shell 11, simplifies the internal structure of the indoor unit 10, and further reduces the size of the indoor unit 10.

[0055] like Figure 1 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the number of the guide members 14 is not less than one, and at least one guide member 14 is disposed adjacent to the lowest point of the condenser 12 .

[0056] The above embodiment further defines that at least one guide member 14 is distributed near the lowest horizontal point of the condenser 12. Since the vertical projection of the condenser 12 at the lowest horizontal point falls outside the air outlet direction of the fan assembly 13, it is necessary to use the guide member 14 to guide part of the airflow to the lowest horizontal point of the condenser 12, so that the airflow discharged from the fan assembly 13 can cover the entire condenser 12 as much as possible, thereby increasing the contact area between the airflow and the condenser 12.

[0057] The number of the guide members 14 may be more than one, and may be two, three, or more. The design may be adaptive according to the relationship between the air outlet direction of the fan assembly 13 and the position of the condenser 12 .

[0058] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the cross section of the flow guide 14 is arc-shaped.

[0059] The above embodiment further defines that the cross-section of the guide member 14 is arc-shaped. When the high-speed airflow discharged by the fan assembly 13 approaches the arc-shaped surface of the guide member 14, the Coanda effect occurs. When the curved surface of the guide surface is toward the lowest horizontal point of the condenser 12, the high-speed airflow will move along the curved surface of the guide member 14 and blow toward the lowest horizontal point of the condenser 12, thereby achieving the goal of covering the entire condenser 12 with the airflow discharged by the fan assembly 13 as much as possible, thereby increasing the contact area between the airflow and the condenser 12.

[0060] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiment, this embodiment further defines: a wind sweeping plate 111 is provided at the air outlet 102, the wind sweeping plate 111 is rotatably connected to the housing 11, and the wind sweeping plate 111 rotates relative to the housing 11 to adjust the wind direction.

[0061] The above embodiment further defines that a sweeping plate 111 is rotatably provided at the air outlet 102 of the housing 11. The sweeping plate 111 can change the wind direction to prevent air from being trapped in a certain place, thereby making the temperature of the entire space more uniform, avoiding the heat flow from blowing directly to a specific area, and reducing the discomfort caused by excessive temperature difference.

[0062] like Figure 1 and Figure 2 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the overall shape of the housing 11 is a rectangular parallelepiped.

[0063] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of this utility model patent shall be determined by the appended claims.

Claims

1. A heating device, comprising an indoor unit (10) and an outdoor unit, wherein the indoor unit (10) is connected to the outdoor unit through a pipeline, and the outdoor unit is used to output a high-temperature and high-pressure gaseous refrigerant to the indoor unit (10), characterized in that: The indoor unit (10) comprises a housing (11), a condenser (12), a fan assembly (13), and a flow guide (14) arranged in the housing (11); The housing (11) is provided with an air inlet (101) and an air outlet (102); the fan assembly (13) is used to inhale airflow at the air inlet (101), introduce it into the condenser (12) for heat absorption, and then discharge it from the air outlet (102); The guide member (14) is located on the channel between the air outlet end of the fan assembly (13) and the condenser (12), and the guide member (14) is used to change the direction of part of the airflow discharged from the fan assembly (13) to increase the contact area between the airflow and the condenser (12).

2. The heating device according to claim 1, characterized in that The fan assembly (13) and the condenser (12) are sequentially distributed from bottom to top along the height direction of the housing (11), and the condenser (12) is designed to be inclined relative to the height direction of the housing (11).

3. The heating device according to claim 2, characterized in that The air outlet (102) is distributed at the top of the housing (11), and the air inlet (101) is distributed at the bottom of the housing (11).

4. The heating device according to claim 3, characterized in that The bottom plate and the side plate of the housing (11) are respectively provided with a first through hole (104) and a second through hole (103) which are in communication with the air inlet end of the fan assembly (13); the second through hole (103) is respectively located at the bottom of the side plate of the housing (11); the first through hole (104) and the second through hole (103) are both the air inlet (101).

5. The heating device according to claim 1, characterized in that The fan assembly (13) comprises a volute air duct (131), a crossflow fan wheel (132) and a motor (133); the crossflow fan wheel is installed in the volute air duct (131), and the crossflow fan wheel (132) is transmission-connected to the rotating shaft of the motor (133); the flow guide (14) is located above the air outlet end of the volute air duct (131).

6. The heating device according to claim 5, characterized in that The volute air duct (131) comprises a volute body (1311) and a volute tongue (1312), the volute body (1311) extends to the bottom of the condenser (12), the side wall of the outer shell (11), the windward surface of the condenser (12), and the extended part of the volute body (1311) enclose a first cavity (105), the air duct enclosed by the volute body (1311) and the volute tongue (1312) is connected to the first cavity (105), and the flow guide (14) is located in the first cavity (105).

7. The heating device according to claim 6, characterized in that The number of the guide members (14) is not less than one, and at least one of the guide members (14) is arranged adjacent to the lowest point of the condenser (12).

8. The heating device according to claim 6 or 7, characterized in that: The cross section of the flow guide (14) is arc-shaped.

9. The heating device according to claim 1, characterized in that A wind sweeping plate (111) is provided at the air outlet (102), and the wind sweeping plate (111) is rotatably connected to the housing (11). The wind sweeping plate (111) rotates relative to the housing (11) to adjust the wind direction.

10. The heating device according to claim 1, characterized in that The overall shape of the housing (11) is a rectangular parallelepiped.

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