Heater with humidification function

Abstract

The present invention provides a heater with a humidification function, including an atomizing humidifying device, the atomizing humidifying device having a water mist generating structure and a mist outlet structure capable of guiding and sending out the water mist generated by the water mist generating structure, the mist outlet structure comprising an air guide cover plate, a cover plate outlet connected to a target humidification space is formed on the air guide cover plate, a mist outlet control member is provided in the cover plate outlet, the mist outlet control member has at least two mist outlets, each of the mist outlets has a different flow area, and the mist outlet control member can be controlled to move so that one of the mist outlets connects the cover plate outlet with the target humidification space, while the remaining mist outlets are not connected to the target humidification space. While meeting the personalized needs of users, the present invention can improve the humidification effect of the heater by adjusting different mist outlet heights and mist outlet ranges, thereby enriching the use scenarios of the heater with a humidification function.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning, and in particular relates to a heater with a humidifying function. Background Art

[0002] Currently, the design of the mist guide structure in air conditioning equipment such as humidifiers, electric heaters with humidification functions (also known as fan heaters), or ventilation systems directly affects the control of the air outlet range and mist height. Existing technologies typically use fixed air guides, which cannot adjust the area of ​​the mist outlet. Consequently, the mist outlet range and height are relatively fixed and cannot be switched to different ranges and heights. This results in limited humidification performance in fan heaters and other related equipment, limiting their use. Summary of the Invention

[0003] Therefore, the present invention provides a heater with a humidification function, which can overcome the technical problem that the mist outlet guide structure of the heater with a humidification function in the related art is fixed and the mist outlet range and mist outlet height cannot be adjusted, resulting in the humidification effect of the heater being general and having limitations in use.

[0004] In order to solve the above problems, the present invention provides a heater with a humidification function, including an atomizing humidifying device, the atomizing humidifying device having a water mist generating structure and a mist outlet structure capable of guiding and sending out the water mist generated by the water mist generating structure, the mist outlet structure including an air guide cover plate, a cover plate outlet connected to a target humidification space is formed on the air guide cover plate, a mist outlet control member is provided in the cover plate outlet, the mist outlet control member has at least two mist outlets, the flow area of ​​each mist outlet is different, and the mist outlet control member can be controlled to move so that one of the mist outlets connects the cover plate outlet with the target humidification space, while the remaining mist outlets are not connected to the target humidification space.

[0005] In some embodiments, the mist control component is a cylinder, and the central axis of the cylinder extends along the horizontal length direction of the heater when in use. The mist outlets are formed on the cylinder at intervals around the central axis, and the cylinder can be driven to rotate around the central axis to achieve on-off switching of different mist outlets.

[0006] In some embodiments, the cover plate outlet includes a first air outlet side wall and a second air outlet side wall extending along the central axis and relatively spaced apart, a limiting circular groove extending along the central axis is formed between the first air outlet side wall and the second air outlet side wall, the cylindrical body is inserted into the limiting circular groove, and the limiting circular groove can limit the radial movement of the cylindrical body.

[0007] In some embodiments, the two ends of the cylindrical body respectively have a first rotating shaft and a second rotating shaft coaxially arranged with the central axis, the limiting circular groove has a necking section at both ends of its length extension direction, the cylindrical body is supported in the necking section via the first rotating shaft and the second rotating shaft at both ends, and also includes a rotation driving device, which is used to drive the second rotating shaft to rotate.

[0008] In some embodiments, the rotation drive device includes a rotary motor, which is fixedly assembled on the air guide cover plate. A driving gear is fixedly provided on the output shaft of the rotary motor, and a driven gear is fixedly provided on the second rotating shaft. The driving gear is meshed with the driven gear.

[0009] In some embodiments, the mist outlet control component also has a mist inlet, and there are two mist outlets, namely a first mist outlet and a second mist outlet. The flow area of ​​the first mist outlet is larger than that of the second mist outlet, and the mist inlet, the first mist outlet, and the second mist outlet are spaced apart around the central axis. The mist outlet control component has a first mist outlet state in which mist is discharged through the mist inlet and the first mist outlet in sequence, and a second mist outlet state in which mist is discharged through the mist inlet and the second mist outlet in sequence. The rotating drive device can drive the mist outlet control component to rotate around the central axis to realize the switching of the mist outlet control component between the first mist outlet state and the second mist outlet state.

[0010] In some embodiments, the shaft wall surface of the second rotating shaft has a first limit block and a second limit block spaced apart around its central axis, and the air guide cover has a third limit block, and the third limit block is located between the first limit block and the second limit block, so that when the second rotating shaft is driven to rotate along the first rotation direction, the first limit block and the first side of the third limit block can be stopped, and when the second rotating shaft is driven to rotate along the second rotation direction, the second limit block and the second side of the third limit block can be stopped.

[0011] In some embodiments, the flow area of ​​the mist inlet is larger than the flow area of ​​the first mist outlet, and when the mist outlet control component is in the first mist outlet state or the second mist outlet state, the actual flow area of ​​the mist inlet is larger than the first mist outlet or the second mist outlet.

[0012] In some embodiments, the heater further includes a top side warm air outlet, an air outlet grille is provided on the top side warm air outlet, and a grille mist outlet is formed on the center area of ​​the horizontal thickness direction of the air outlet grille with reference to the orientation of the heater in use, and the position of the grille mist outlet corresponds to the position of the cover plate outlet; and / or, a light source is provided on the inner side of the cover plate outlet, and the light of the light source can be emitted through the mist outlet.

[0013] In some embodiments, the flow area of ​​the grille mist outlet is not less than the maximum flow area of ​​each of the mist outlets, and each of the mist outlets can be controlled to be completely aligned and connected with the grille mist outlet.

[0014] The present invention provides a fan heater with a humidifying function, which has the following beneficial effects:

[0015] At least two mist outlets with different flow areas are provided on the mist outlet control member, so that the water mist delivery position can be selected by controlling the movement of the mist outlet control member, so that the difference in flow area under the same water mist driving pressure can be used to adjust the water mist outlet height. While meeting the personalized needs of users (different mist outlet heights create different environmental atmospheres), different mist outlet heights and mist outlet ranges can be used to adjust and improve the humidification effect of the heater, which can enrich the use scenarios of heaters with humidification functions. It should be noted that the greater the mist outlet height (the smaller the flow area of ​​the mist outlet), the larger the coverage range of the mist outlet will be, which is beneficial to the humidification scene of a larger space, and the smaller the mist outlet height (the larger the flow area of ​​the mist outlet), the smaller the coverage range of the mist outlet will be, which can meet the user's demand for a rapid improvement in the humidification effect of a local space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0017] Figure 1 2 is a schematic diagram of the internal structure of a heater with a humidification function in an embodiment of the present invention, wherein the mist control component is in a first mist-discharging state;

[0018] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 yes Figure 1 Schematic diagram of the middle part structure;

[0020] Figure 4 3D schematic diagram of the structure of the corresponding air guide cover and related components when the mist control component is in the first mist discharge state;

[0021] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle;

[0022] Figure 6 2 is another schematic diagram of the internal structure of the fan heater with humidification function in an embodiment of the present invention, wherein the mist control member is in the second mist discharge state;

[0023] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0024] Figure 8 yes Figure 6 Schematic diagram of the middle part structure;

[0025] Figure 9 3D schematic diagram of the structure of the corresponding air guide cover and related components when the mist control component is in the second mist discharge state;

[0026] Figure 10 yes Figure 9 A partial enlarged view of point D in the middle;

[0027] Figure 11 yes Figure 1 A schematic diagram of the three-dimensional structure of the air guide cover;

[0028] Figure 12 yes Figure 11 Side view of

[0029] Figure 13 yes Figure 1 A schematic diagram of the three-dimensional structure of the mist control component;

[0030] Figure 14 yes Figure 1 Schematic diagram of the three-dimensional structure of the air outlet grille (appearance).

[0031] The accompanying drawings are:

[0032] 11. Air guide cover; 111. Cover outlet; 112. Limiting circular groove; 113. Third limiting block; 12. Mist outlet control component; 121. First rotating shaft; 122. Second rotating shaft; 1221. Driven gear; 1222. First limiting block; 1223. Second limiting block; 123. Mist inlet; 124. First mist outlet; 125. Second mist outlet; 13. Mist guide groove; 21. Rotating motor; 211. Driving gear; 3. Air outlet grille; 31. Grille mist outlet; 41. Casing; 42. Warm air blower; 43. Bottom warm air outlet; 45. Light source. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0035] For ease of description, spatially relative terms such as "above," "above," "on the upper surface of," and "upper" may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" other devices or structures would then be positioned as "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the "above" and "below" orientations. The device may also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] See also Figures 1 to 14As shown, according to an embodiment of the present invention, a heater with a humidification function is provided, including an atomizing humidifying device (not labeled in the figure), the atomizing humidifying device has a water mist generating structure (not labeled in the figure, not shown) and a mist outlet structure (not labeled in the figure) capable of guiding and sending the water mist generated by the water mist generating structure. The aforementioned water mist generating structure can be, for example, a traditional ultrasonic atomizer and a water tank (not shown in the figure) matched therewith, etc. The mist outlet structure includes a mist outlet driving component (not shown in the figure, such as a mist outlet fan) and an air guide cover 11 connected to the air outlet of the mist outlet driving component. A mist guide groove 13 is also provided between the aforementioned air guide cover 11 and the mist outlet generating structure, and the mist guide groove 13 can guide the water mist generating structure to be sent out. The mist formed by the atomization structure is guided into the aforementioned mist outlet structure. A cover outlet 111 connected to the target humidification space is formed on the air guide cover 11. It can be understood that the aforementioned mist outlet drive component can generate a flowing airflow (that is, wind) to carry the water mist generated by the water mist generating structure through the cover outlet 111 to the target humidification space. A mist outlet control component 12 is provided in the cover outlet 111. The mist outlet control component 12 has at least two mist outlets, and the flow area of ​​each mist outlet is different. The mist outlet control component 12 can be controlled to move so that one of the mist outlets connects the cover outlet 111 with the target humidification space, while the remaining mist outlets are not connected to the target humidification space. The flow area of ​​the aforementioned cover outlet 111 should not be less than the one with the largest flow area among the mist outlets on the mist outlet control component 12, with the basic principle of not obstructing the mist outlet airflow.

[0038] In this technical solution, at least two mist outlets with different flow areas are provided on the mist outlet control member 12, so that the water mist delivery position can be selected by controlling the movement of the mist outlet control member 12, so that the difference in flow area under the same water mist driving pressure can be used to adjust the water mist outlet height. While meeting the personalized needs of users (different mist outlet heights create different environmental atmospheres), different mist outlet heights and mist outlet ranges can be used to adjust and improve the humidification effect of the heater, which can enrich the use scenarios of heaters with humidification functions. It should be noted that the greater the mist outlet height (the smaller the flow area of ​​the mist outlet), the larger the coverage range of the mist outlet will be, which is beneficial to the humidification scene of a larger space, and the smaller the mist outlet height (the larger the flow area of ​​the mist outlet), the smaller the coverage range of the mist outlet will be, which can meet the user's demand for a rapid improvement in the humidification effect of a local space.

[0039] In some embodiments, the mist control member 12 is a cylinder, and the central axis of the cylinder is along the horizontal length direction of the heater in the use state (ie Figure 1The mist outlets are formed on the cylindrical body at intervals around the central axis, and the cylindrical body can be driven to rotate around the central axis to realize on-off switching of different mist outlets.

[0040] In this technical solution, the mist control component 12 is designed as a cylinder, and a plurality of mist outlets with different flow areas are arranged on the cylinder around its central axis. In this way, the purpose of discharging mist from different mist outlets can be achieved by driving the cylinder to rotate around its central axis, thereby realizing the selective control of different mist outlet heights. The structure and control switching are particularly simple.

[0041] In some embodiments, the cover plate outlet 111 includes a first air outlet side wall (not marked in the figure) and a second air outlet side wall (not marked in the figure) extending along the central axis and arranged relatively spaced apart, that is, the cover plate outlet 111 is formed by the aforementioned first air outlet side wall and the second air outlet side wall. The aforementioned first air outlet side wall and the second air outlet side wall can be a separately assembled structure or an integrally formed structure. A limiting circular groove 112 extending along the central axis is formed between the first air outlet side wall and the second air outlet side wall. The cylindrical body is inserted into the limiting circular groove 112, and the limiting circular groove 112 can limit the radial movement of the cylindrical body. It can be understood that the aforementioned limiting circular groove 112 can not only limit the radial movement of the cylindrical body, but also achieve surface sealing of at least part of the other mist outlets that are not selected for mist outlet through the wrapping of the groove wall of the limiting circular groove 112 and the cylindrical body.

[0042] In some embodiments, the two ends of the cylindrical body respectively have a first rotating shaft 121 and a second rotating shaft 122 coaxially arranged with the central axis, and the limiting circular groove 112 has a necking section at both ends of its length extension direction. The cylindrical body is supported in the necking section via the first rotating shaft 121 and the second rotating shaft 122 at both ends, and also includes a rotation driving device (not marked in the figure), which is used to drive the second rotating shaft 122 to rotate.

[0043] In this technical solution, the necking section of the aforementioned limiting circular groove 112 can limit the axial direction of the cylindrical body, thereby ensuring that the position of the cylindrical body is reliable and stable. At the same time, the aforementioned rotary drive device is used to drive the rotation of the second rotating shaft 122, which can significantly improve the degree of automation of the mist outlet switching selection of the mist outlet control component 12, thereby enhancing the intelligence of the product. It should be noted that in order to ensure that the cylindrical component can be more conveniently assembled in the cover plate outlet 111, that is, assembled in the aforementioned limiting circular groove 112, the aforementioned first air outlet side wall and the second air outlet side wall are preferably assembled in a split structure.

[0044] In a specific embodiment, the rotation drive device includes a rotary motor 21, which is fixedly assembled on the air guide cover 11. A driving gear 211 is fixed on the output shaft of the rotary motor 21, and a driven gear 1221 is fixed on the second rotating shaft 122. The driving gear 211 is meshed with the driven gear 1221. The aforementioned rotary motor 21 can adopt a stepping motor. The rotary motor 21 drives the meshing rotation of the driving gear 211 and the driven gear 1221, which can ensure the accuracy of the rotational displacement of the cylinder, thereby ensuring precise control of the mist outlet selection of different mist outlets.

[0045] exist Figure 1 In the specific embodiment shown, the mist control component 12 also has a mist inlet 123, and the mist outlet has two, namely a first mist outlet 124 and a second mist outlet 125. The flow area of ​​the first mist outlet 124 is larger than that of the second mist outlet 125, and the mist inlet 123, the first mist outlet 124, and the second mist outlet 125 are spaced around the central axis. The mist control component 12 has a first mist outlet state in which mist is discharged sequentially through the mist inlet 123 and the first mist outlet 124, and a second mist outlet state in which mist is discharged sequentially through the mist inlet 123 and the second mist outlet 125. The rotary drive device can drive the mist control component 12 to rotate around the central axis to realize the switching of the mist control component 12 between the first mist outlet state and the second mist outlet state. The aforementioned mist inlet 123, the first mist outlet 124, and the second mist outlet 125 are all rectangular openings.

[0046] In this technical solution, the difficulty of arranging and constructing the mist outlet and the mist inlet of the mist outlet control component 12 can be reduced, the rotation control logic of the mist outlet control component 12 can be simplified, and the design cost can be reduced.

[0047] See also Figure 5 and Figure 10 As shown, the shaft wall surface of the second rotating shaft 122 has a first limit block 1222 and a second limit block 1223 arranged around the central axis thereof at intervals, and the wind guide cover 11 has a third limit block 113, which is located between the first limit block 1222 and the second limit block 1223, so that the second rotating shaft 122 can be driven to rotate along the first rotation direction (such as Figure 5 When the second rotating shaft 122 is driven to rotate along the second rotation direction (opposite to the aforementioned first rotation direction), the second limit block 1223 shown in the figure stops against the second side of the third limit block 113, thereby causing the mist control component 12 to be in the first mist-discharging state. When the second rotating shaft 122 is driven to rotate along the second rotation direction (opposite to the aforementioned first rotation direction), the second limit block 1223 shown in the figure stops against the second side of the third limit block 113, thereby causing the mist control component 12 to be in the second mist-discharging state.

[0048] In this technical solution, the first limit block 1222, the second limit block 1223 and the third limit block 113 form a selective combination, thereby achieving precise limitation of the first mist output state and the second mist output state of the mist output control component 12, which can simplify the design of the control logic of the rotary motor 21.

[0049] In some embodiments, the flow area of ​​the mist inlet 123 is larger than the flow area of ​​the first mist outlet 124, and when the mist control component 12 is in the first mist outlet state or the second mist outlet state, the actual flow area of ​​the mist inlet 123 is larger than the first mist outlet 124 or the second mist outlet 125, so as to ensure that the mist control component 12 can deliver a sufficiently large amount of mist in both the first mist outlet state and the second mist outlet state. At the same time, after the water mist enters the hollow inner cavity of the cylinder through the mist inlet 123 with a larger flow area, it is discharged again through the first mist outlet 124 or the second mist outlet 125 with a smaller flow area. The mist outlet with a smaller flow area forms throttling acceleration for the water mist, thereby making the water mist height higher. At the same time, larger particles of water mist droplets collide with the wall of the hollow inner cavity of the cylinder and separate from the water mist, while smaller particles of water mist are delivered from the mist outlet, which can effectively avoid the occurrence of safety hazards caused by the accumulation of larger particles of water mist at the mist outlet and entering the internal space outside the mist outlet mechanism of the heater.

[0050] In some embodiments, the heater further comprises a top side warm air outlet (not marked in the figure), and an air outlet grille 3 (such as Figure 14 As shown), with the orientation of the heater in use as a reference, the horizontal thickness direction of the air outlet grille 3 (ie Figure 1 A grille mist outlet 31 is formed in the central area of ​​the left and right directions of the orientation shown, and the position of the grille mist outlet 31 corresponds to the position of the cover plate outlet 111, that is, both sides of the grille mist outlet 31 are warm air supply areas (air outlet areas). In this way, on the one hand, the supply flow rate of the warm air can be used to help the water mist rise upward, further improve the mist outlet height under the same mist outlet or in a unified mist outlet state, further improve the humidification effect and space humidification uniformity, improve user comfort, and at the same time prevent larger particle droplets in the water mist discharged from the cylindrical mist outlet from accumulating at the mist outlet.

[0051] A light source 45 is provided on the inner side of the cover plate outlet 111. Light from the light source 45 can be emitted through the mist outlet. Different colored light sources 45 can be used to illuminate the mist emitted from the mist outlet, thereby creating a visual effect at the mist outlet of the heater and enhancing user comfort. In one specific embodiment, a red light source 45 is used. The mist emitted by the heater, under the disturbance of the warm air flow on both sides, creates a visual effect of red, dynamic flames, which can visually enhance the user's sense of warmth.

[0052] In some embodiments, the flow area of ​​the grille mist outlet 31 is no less than the maximum flow area of ​​each of the mist outlets, and each of the mist outlets can be controlled to be completely aligned and connected with the grille mist outlet 31 to ensure smooth delivery of water mist. In another preferred embodiment, a seal (not shown or labeled in the figure) is provided between the grille mist outlet 31 and the edge of the cover plate outlet 111 to prevent water mist from entering the warm air delivery area, that is, the internal area outside the heater's mist outlet structure.

[0053] Continue to see Figure 1 As shown, a warm air duct (not labeled in the figure) and a heat source (e.g., a resistance heater) are provided within the heater housing 41. A warm air blower 42 is provided within the warm air duct to drive external air into the duct and, after heat exchange, to be delivered through the aforementioned air outlet grille 3. In another preferred embodiment, the heater further has a bottom-side warm air outlet 43 (specifically, located on the front side of the heater housing 41). The warm air blower 42 is a cross-flow blower, thus forming a wide-width dual-flow warm air supply structure, which can enhance the heating effect.

[0054] In a specific embodiment, the width (circumferential width) of the first mist outlet 124 and the second mist outlet 125 is 1-5 mm, and the corresponding mist outlet height is 20-50 mm (under the same driving pressure of the mist outlet fan).

[0055] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A fan heater with humidification function, characterized in that: The invention comprises an atomizing humidifying device and an air outlet grille, wherein the atomizing humidifying device has a water mist generating structure and a mist outlet structure capable of guiding and sending out the water mist generated by the water mist generating structure, wherein the mist outlet structure comprises an air guide cover plate (11), wherein a cover plate outlet (111) communicating with a target humidifying space is formed on the air guide cover plate (11), and a mist outlet control member (12) is provided in the cover plate outlet (111), wherein the mist outlet control member (12) has at least two mist outlets, wherein the flow area of ​​each mist outlet is different, and the mist outlet control member (12) can be controlled to move so that one of the mist outlets connects the cover plate outlet (111) with the target humidifying space, while the remaining mist outlets are not connected with the target humidifying space; the mist outlet control member (12) ) is a cylindrical body, the central axis of the cylindrical body extends along the horizontal length direction of the heater in the use state, the mist outlets are formed on the cylindrical body at intervals around the central axis, and the cylindrical body can be driven to rotate around the central axis to realize the on-off switching of different mist outlets; the cover plate outlet (111) includes a first air outlet side wall and a second air outlet side wall extending along the central axis and relatively spaced apart, a limiting circular groove (112) extending along the central axis is formed between the first air outlet side wall and the second air outlet side wall, the cylindrical body is inserted into the limiting circular groove (112), and the limiting circular groove (112) can limit the radial movement of the cylindrical body; the air guide cover plate (11) is arranged on the inner side of the air outlet grille.

2. The air heater according to claim 1, characterized in that The two ends of the cylindrical body respectively have a first rotating shaft (121) and a second rotating shaft (122) coaxially arranged with the central axis. The limiting circular groove (112) has necking sections at both ends of its length extension direction. The cylindrical body is supported in the necking section via the first rotating shaft (121) and the second rotating shaft (122). The cylindrical body also includes a rotation driving device, which is used to drive the second rotating shaft (122) to rotate.

3. The air heater according to claim 2, characterized in that The rotary drive device comprises a rotary motor (21), the rotary motor (21) being fixedly assembled on the air guide cover (11), a driving gear (211) being fixedly provided on the output shaft of the rotary motor (21), a driven gear (1221) being fixedly provided on the second rotating shaft (122), and the driving gear (211) and the driven gear (1221) being meshed with each other.

4. The air heater according to claim 2, characterized in that The mist control component (12) also has a mist inlet (123), and the mist outlet has two, namely a first mist outlet (124) and a second mist outlet (125). The flow area of ​​the first mist outlet (124) is larger than that of the second mist outlet (125), and the mist inlet (123), the first mist outlet (124), and the second mist outlet (125) are arranged at intervals around the central axis. The mist control component (12) has a first mist outlet state in which mist is discharged through the mist inlet (123) and the first mist outlet (124) in sequence, and a second mist outlet state in which mist is discharged through the mist inlet (123) and the second mist outlet (125) in sequence. The rotary drive device can drive the mist control component (12) to rotate around the central axis to realize the switching of the mist control component (12) between the first mist outlet state and the second mist outlet state.

5. The air heater according to claim 4, characterized in that: The shaft wall surface of the second rotating shaft (122) is provided with a first limit block (1222) and a second limit block (1223) which are spaced apart around the central axis thereof. The wind guide cover (11) is provided with a third limit block (113), and the third limit block (113) is located between the first limit block (1222) and the second limit block (1223), so that when the second rotating shaft (122) is driven to rotate along the first rotation direction, the first limit block (1222) and the first side of the third limit block (113) can be stopped, and when the second rotating shaft (122) is driven to rotate along the second rotation direction, the second limit block (1223) and the second side of the third limit block (113) can be stopped.

6. The air heater according to claim 4, characterized in that The flow area of ​​the mist inlet (123) is greater than the flow area of ​​the first mist outlet (124), and when the mist outlet control component (12) is in the first mist outlet state or the second mist outlet state, the actual flow area of ​​the mist inlet (123) is greater than that of the first mist outlet (124) or the second mist outlet (125).

7. The air heater according to claim 1, characterized in that The invention also includes a top side warm air outlet, wherein an air outlet grille (3) is provided on the top side warm air outlet, and a grille mist outlet (31) is formed in the center area of ​​the air outlet grille (3) in the horizontal thickness direction, with reference to the orientation of the heater in use, and the position of the grille mist outlet (31) corresponds to the position of the cover plate outlet (111); and / or a light source (45) is provided on the inner side of the cover plate outlet (111), and light from the light source (45) can be emitted through the mist outlet.

8. The air heater according to claim 7, characterized in that The flow area of ​​the grille mist outlet (31) is not less than the maximum value of the flow area of ​​each mist outlet, and each mist outlet can be controlled to be completely aligned and communicated with the grille mist outlet (31).

Images