A heater

Abstract

The present application relates to the technical field of a warmer, in particular to a warmer. The warmer comprises: a fan assembly, a volute outlet adapted to air outlet is arranged on the fan assembly; an air outlet unit, an annular air outlet is arranged on the air outlet unit; a flow guide outer wall adapted to communicate the volute outlet and the annular air outlet; and a flow guide inner wall, the flow guide outer wall and the flow guide inner wall are arranged at intervals, a flow guide cavity is formed between the flow guide outer wall and the flow guide inner wall, and the flow guide cavity is adapted to guide the airflow to be uniformly discharged from the volute outlet to the annular air outlet. The warmer provided by the present application forms a funnel type air guide structure by arranging the flow guide outer wall and the flow guide inner wall, so that the airflow from the fan assembly is more smoothly introduced into the air outlet unit; by arranging the flow guide grid, the airflow is more uniformly flowed to the annular air outlet direction, so that 360° full range super wide angle air supply is realized, the purpose of uniform heating is achieved, and the comfort of bathing is improved.

Description

Technical Field

[0001] This invention relates to the field of heater technology, and specifically to a heater. Background Technology

[0002] Existing dual-fan, dual-outlet heaters (such as...) Figure 1 As shown, the air outlet is usually lengthened further on the volute tongue side to increase the outlet area and expand the air supply range. However, since the width of the volute outlet is limited, if the length of the outlet is further increased, the high-speed airflow will gather on one side of the outlet along the length, while the airflow on the other side will decrease, resulting in uneven airflow distribution on the left and right sides along the length. If the outlet grille is too close to the volute tongue, the high-speed airflow accelerated by the impeller will gather in large quantities on the side away from the volute tongue in the vertical direction under the action of inertial force, resulting in uneven airflow distribution in the vertical direction and affecting people's bathing comfort. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of uneven airflow distribution at the air outlet of the heater in the prior art, thereby providing a heater with uniform airflow distribution at the air outlet.

[0004] To solve the above-mentioned technical problems, the present invention provides a heater comprising:

[0005] The fan assembly is equipped with a volute outlet suitable for air discharge;

[0006] An air outlet unit, wherein the air outlet unit is provided with an annular air outlet;

[0007] The outer wall of the guide is adapted to connect the volute outlet and the annular air outlet;

[0008] The inner wall of the guide is spaced apart from the outer wall of the guide, and a guide cavity is formed between the outer wall of the guide and the inner wall of the guide. The guide cavity is adapted to guide the airflow from the volute outlet toward the annular air outlet for uniform discharge.

[0009] Optionally, the number of the fan components is N sets;

[0010] The flow guiding cavity includes N sub-cavities suitable for flow guiding and N corresponding flow collecting ports; the N flow collecting ports are connected to the N volute outlets in a one-to-one correspondence;

[0011] The flow guiding cavity also includes a flow expansion port, which is divided into N segments, and each segment of the flow expansion port is connected to a corresponding sub-cavity; the flow expansion port is matched with the shape of the air outlet unit and is connected to it; wherein, N≥2.

[0012] Optionally, the total airflow area of ​​the expansion port is greater than the total airflow area of ​​the collection port.

[0013] Optionally, the outer wall of the guide and the inner wall of the guide form a funnel-shaped air guide structure, with the flow collection port at one end and the flow expansion port at the other end.

[0014] Optionally, the heater further includes:

[0015] A flow guide grille is disposed at the flow inlet and is suitable for rectifying and breaking vortices in the airflow; the number of flow guide grilles is N sets, and the N sets of flow guide grilles are disposed one-to-one with the N flow inlets, wherein N≥2.

[0016] Optionally, the flow guide grille is provided with gratings, and the gratings of the flow guide grille form a preset angle α with the X-axis, where 0 < α < 180°.

[0017] Optionally, the number of gratings in the flow guide grille is multiple, and the angle α of the gratings in the multiple flow guide grilles decreases sequentially along the X-axis direction.

[0018] Optionally, the annular air outlet is divided into N segments, and each segment of the annular air outlet is connected to one of the fan components.

[0019] Optionally, the volute outlet of the fan assembly is oriented along the width direction.

[0020] Optionally, the heater further includes a damper connected to at least one of the N sets of volute outlets of the N sets of the fan assemblies.

[0021] The technical solution of this invention has the following advantages:

[0022] 1. The heater provided by the present invention forms a funnel-shaped air guide structure by setting an outer air guide wall and an inner air guide wall. One end of the funnel-shaped air guide structure is provided with the flow collecting port and the other end is provided with the flow expanding port. The total air passage area of ​​the flow expanding port is larger than the total air passage area of ​​the flow collecting port, so as to guide the airflow from the fan assembly more smoothly to the "O"-shaped ultra-long air outlet of the air outlet unit, thereby achieving 360° all-round ultra-wide-angle air supply, achieving the purpose of uniform heating and improving the comfort of bathing.

[0023] 2. The heater provided by the present invention, by setting a flow guide grille, allows the airflow direction after being accelerated by the impeller to more smoothly change from radial to axial, thereby rectifying and breaking vortices in the airflow; the number of the flow guide grilles is N sets, and the N sets of flow guide grilles are set one-to-one with the N collection ports, wherein N≥2; the flow guide grille is provided with gratings, and the gratings of the flow guide grille form a preset angle α with the X-axis, wherein 0<α<180°; and the number of gratings of the flow guide grille is multiple, and the angle α of the gratings of the multiple flow guide grilles decreases sequentially along the X-axis direction, so that the airflow from the volute outlet flows more evenly to the direction of the annular air outlet, reducing flow loss during the process, ensuring better airflow effect, and improving the comfort of bathing.

[0024] 3. The heater provided by the present invention has an annular air outlet divided into N segments to form N air outlet sections; the N air outlet sections of the annular air outlet are connected to the N expansion sections of the expansion port in a one-to-one correspondence; the N expansion sections of the expansion port are connected to the N sub-cavities in a one-to-one correspondence; the N sub-cavities are connected to the N collection ports in a one-to-one correspondence; and the N collection ports are connected to the N volute outlets in a one-to-one correspondence, thereby forming N independent airflow channels, effectively avoiding the flow turbulence caused by the mixing of airflows from different directions, and improving the overall airflow volume of the unit.

[0025] 4. The heater provided by the present invention, by setting an air outlet unit, the air outlet unit is provided with an annular air outlet, the annular air outlet is an "O" shaped extra-long air outlet, and an air outlet grille is provided inside the annular air outlet, so as to ensure uniform airflow and achieve 360° all-round air supply, thereby further expanding the air supply range and achieving the purpose of uniform heating.

[0026] 5. The heater provided by the present invention has the volute outlet of the fan assembly oriented along the width direction; by oriented the first volute outlet of the first fan assembly and the second volute outlet of the second fan assembly along the width direction, the length of the outlet air duct in the ventilation mode is shortened, the flow loss along the flow process is reduced, and the ventilation performance is guaranteed. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the external structure of an existing heater;

[0029] Figure 2 This is a schematic diagram of the exploded structure of the heater of the present invention;

[0030] Figure 3 This is a schematic diagram of the external structure of the heater of the present invention;

[0031] Figure 4 This is a schematic diagram of the external structure of the airflow guiding component of the heater of the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the airflow guiding component of the heater of the present invention;

[0033] Figure 6 This is a schematic diagram of the internal structure of the airflow guide grille of the heater of the present invention;

[0034] Figure 7 This is a schematic diagram of the internal structure of the fan assembly of the heater of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 101. Air duct; 1011. First air duct; 1012. Second air duct; 102. Volute outlet; 1021. First volute outlet; 1022. Second volute outlet; 11. First fan assembly; 12. Second fan assembly;

[0037] 201, Inlet; 2011, First Inlet; 2012, Second Inlet; 202, Expansion Port; 21, Guide Grille; 2101, First Grille Plate; 2102, Second Grille Plate; 2103, Third Grille Plate; 2104, Fourth Grille Plate; 211, First Grille; 212, Second Grille; 22, Outer Wall of Guide; 23, Inner Wall of Guide; 24, Guide Cavity; 240, Sub-cavity; 2401, First Sub-cavity; 2402, Second Sub-cavity;

[0038] 3. Air outlet unit; 301, circumferential air outlet; 3011, air outlet grille;

[0039] 4. Air damper;

[0040] 5. Face mask; 501. Annular groove. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] The heater provided in this embodiment includes:

[0046] A fan assembly having a volute outlet 102 suitable for air discharge;

[0047] Air outlet unit 3, wherein an annular air outlet 301 is provided on the air outlet unit 3;

[0048] The outer guide wall 22 is adapted to connect the volute outlet 102 and the annular air outlet 301;

[0049] The inner guide wall 23 is spaced apart from the outer guide wall 22, and a guide cavity 24 is formed between the outer guide wall 22 and the inner guide wall 23. The guide cavity 24 is adapted to guide the airflow from the volute outlet 102 toward the annular air outlet 301 for uniform discharge.

[0050] Combination Figure 2 , Figure 7 As shown, the fan assembly is provided with a volute outlet 102 suitable for air discharge; in this embodiment, the fan assembly includes a first fan assembly 11 and a second fan assembly 12, which are arranged in parallel.

[0051] Optionally, the first fan assembly 11 is provided with a first volute outlet 1021, and the second fan assembly 12 is provided with a second volute outlet 1022.

[0052] Optionally, the fan assembly is further provided with an air duct 101; the first fan assembly 11 is provided with a first air duct 1011, and the second fan assembly 12 is provided with a second air duct 1012; the first air duct 1011 and the second air duct 1012 are independently and connected in parallel to improve the overall air volume.

[0053] Combination Figure 2 , Figure 3 As shown, the air outlet unit 3 is provided with an annular air outlet 301; in this embodiment, the annular air outlet 301 is an "O"-shaped extra-long air outlet, and an air outlet grille 3011 is provided inside the annular air outlet 301. While ensuring uniform airflow, it can achieve 360° all-round air supply, thereby further expanding the air supply range and achieving the purpose of uniform heating.

[0054] Optionally, the "O"-shaped extra-long air outlet is an "O"-shaped extra-long PTC structure.

[0055] Combination Figure 2 , Figure 5 As shown, the outer guide wall 22 is adapted to connect the volute outlet 102 and the annular air outlet 301; the inner guide wall 23 is spaced apart from the outer guide wall 22, and a guide cavity 24 is formed between the outer guide wall 22 and the inner guide wall 23. The guide cavity 24 is adapted to guide the airflow from the volute outlet 102 toward the annular air outlet 301 for uniform discharge.

[0056] Specifically, the number of wind turbine components is N sets;

[0057] The flow guiding cavity 24 includes N sub-cavities 240 suitable for flow guiding and N corresponding flow collecting ports 201; the N flow collecting ports 201 are connected to the N volute outlets 102 in a one-to-one correspondence;

[0058] The flow guiding cavity 24 also includes a flow expansion port 202, which is divided into N segments. Each segment of the flow expansion port 202 is connected to a corresponding sub-cavity 240. The flow expansion port 202 is matched and connected to the shape of the air outlet unit 3. Wherein, N≥2.

[0059] Optionally, the expansion port 202 is divided into N segments to form N expansion sections; the N expansion sections of the expansion port 202 are connected to the N sub-cavities 240 in a one-to-one correspondence.

[0060] In this embodiment, the number of fan assemblies is two sets, including the first fan assembly 11 and the second fan assembly 12; the flow guiding cavity 24 includes two sub-cavities 240 suitable for flow guiding and two corresponding flow collection ports 201; the two flow collection ports 201 are connected to the two volute outlets 102 of the two sets of fan assemblies in a one-to-one correspondence; the flow guiding cavity 24 also includes a flow expansion port 202, which is divided into two equal sections, and each section of the flow expansion port 202 is connected to one of the sub-cavities 240; the flow expansion port 202 is shaped and connected to the air outlet unit 3.

[0061] Combination Figure 5 As shown, in this embodiment, the flow guiding cavity 24 includes two sub-cavities 240 suitable for flow guiding and two corresponding flow collecting ports 201; the sub-cavities 240 of the flow guiding cavity 24 include a first sub-cavity 2401 and a second sub-cavity 2402; the flow collecting ports 201 include a first flow collecting port 2011 corresponding to the first sub-cavity 2401 and a second flow collecting port 2012 corresponding to the second sub-cavity 2402;

[0062] The first collector port 2011 is connected to the first volute outlet 1021 of the first fan assembly 11, and the second collector port 2012 is connected to the second volute outlet 1022 of the second fan assembly 12.

[0063] The flow guiding cavity 24 also includes a flow expansion port 202, which is divided into two sections, including a first flow expansion section and a second flow expansion section; the first flow expansion section is connected to the first sub-cavity 2401, and the second flow expansion section is connected to the second sub-cavity 2402; the flow expansion port 202 is shaped to match and connected to the air outlet unit 3.

[0064] Specifically, the total air passage area of ​​the expansion port 202 is greater than the total air passage area of ​​the collection port 201.

[0065] Specifically, the outer guide wall 22 and the inner guide wall 23 form a funnel-shaped air guide structure, with the flow collection port 201 at one end and the flow expansion port 202 at the other end.

[0066] Optionally, the outer guide wall 22 and the inner guide wall 23 form a funnel-shaped air guide structure. One end of the funnel-shaped air guide structure is provided with the flow collecting port 201, and the other end is provided with the flow expanding port 202. The total air passage area of ​​the flow expanding port 202 is larger than the total air passage area of ​​the flow collecting port 201, so as to guide the airflow from the fan assembly to the air outlet unit 3 more smoothly, thereby enhancing the smoothness of airflow.

[0067] In this embodiment, a funnel-shaped air guide structure is formed by setting an outer guide wall 22 and an inner guide wall 23. One end of the funnel-shaped air guide structure is provided with the flow collecting port 201, and the other end is provided with the flow expanding port 202. The total air passage area of ​​the flow expanding port 202 is larger than the total air passage area of ​​the flow collecting port 201, so as to guide the airflow from the fan assembly more smoothly to the "O"-shaped ultra-long air outlet of the air outlet unit 3, realize 360° all-round ultra-wide-angle air supply, achieve the purpose of uniform heating, and thus improve the comfort of bathing.

[0068] Specifically, the heater also includes:

[0069] A flow guide grille 21 is disposed at the flow collection port 201 and is suitable for rectifying and breaking vortices in the airflow. There are N sets of flow guide grilles 21, and the N sets of flow guide grilles 21 are configured one-to-one with the N flow collection ports 201, wherein N≥2.

[0070] Combination Figure 2 , Figure 4 , Figure 6 As shown, the flow guide grille 21 is disposed at the flow collection port 201 and is suitable for rectifying and breaking vortices in the airflow. In this embodiment, there are two sets of flow guide grilles 21, and the two sets of flow guide grilles 21 are disposed one-to-one with the two flow collection ports 201.

[0071] Optionally, the flow guide grille 21 includes a first grille 211 and a second grille 212; the first grille 211 is disposed at the first flow collector 2011, and the second grille 212 is disposed at the second flow collector 2012, so that the accelerated gas can more smoothly change from radial to axial direction, effectively playing the role of rectifying flow and breaking vortices.

[0072] Specifically, the flow guide grille 21 is provided with gratings, and the gratings of the flow guide grille 21 form a preset angle α with the X-axis, where 0 < α < 180°.

[0073] Specifically, the number of gratings in the flow guide grille 21 is multiple, and the angle α of the gratings in the multiple flow guide grilles 21 decreases sequentially along the X-axis direction.

[0074] Combination Figure 6 As shown, in this embodiment, the flow guide grille 21 is provided with grille plates, and the grille plates of the flow guide grille 21 form a preset angle α with the X-axis, where 0 < α < 180°; the grille plates of the flow guide grille 21 include a first grille plate 2101, a second grille plate 2102, a third grille plate 2103 and a fourth grille plate 2104;

[0075] The first grid plate 2101 forms a preset angle α1 with the X-axis; the second grid plate 2102 forms a preset angle α2 with the X-axis; the third grid plate 2103 forms a preset angle α3 with the X-axis; and the fourth grid plate 2104 forms a preset angle α4 with the X-axis, wherein α1 > α2 > α3 > α4, so that the airflow of the volute outlet 102 flows more evenly to the direction of the annular air outlet 301, reducing flow loss during the process and ensuring better air outlet effect.

[0076] In this embodiment, by setting the flow guide grille 21, the airflow direction after being accelerated by the impeller can be smoothly changed from radial to axial, thereby rectifying and breaking vortices in the airflow. The number of flow guide grilles 21 is N sets, and the N sets of flow guide grilles 21 are set one-to-one with the N collection ports 201, where N≥2. The flow guide grille 21 is provided with gratings, and the gratings of the flow guide grille 21 form a preset angle α with the X-axis, where 0<α<180°. The number of gratings of the flow guide grille 21 is multiple, and the angle α of the gratings of the multiple flow guide grilles 21 decreases sequentially along the X-axis direction, so that the airflow from the volute outlet 102 flows more evenly to the direction of the annular air outlet 301, reducing flow loss during the process, ensuring better air outlet effect, and improving the comfort of bathing.

[0077] Specifically, the annular air outlet 301 is divided into N segments, and each segment of the annular air outlet 301 is connected to one of the fan components.

[0078] Optionally, the annular air outlet 301 is divided into N segments to form N air outlet segments; the N air outlet segments of the annular air outlet 301 are connected to the N expansion segments of the expansion port 202; the N expansion segments of the expansion port 202 are connected to the N sub-cavities 240; the N sub-cavities 240 are connected to the N collection ports 201; and the N collection ports 201 are connected to the N volute outlets 102, thereby forming N independent airflow channels, effectively avoiding flow turbulence caused by the mixing of airflows from different directions, and improving the overall airflow volume of the unit.

[0079] In this embodiment, the annular air outlet 301 is divided into two sections, including a first air outlet section and a second air outlet section; the first air outlet section is connected to the first expansion section of the expansion port 202; the first expansion section is connected to the first sub-cavity 2401; the first sub-cavity 2401 is connected to the first collection port 2011; the first collection port 2011 is connected to the first volute outlet 1021 of the first fan assembly 11, forming a first airflow channel;

[0080] The second air outlet section is connected to the second expansion section of the expansion port 202; the second expansion section is connected to the second sub-cavity 2402; the second sub-cavity 2402 is connected to the second collection port 2012; the second collection port 2012 is connected to the second volute outlet 1022 of the second fan assembly, forming a second airflow channel, thereby forming an independent airflow channel, effectively avoiding the flow turbulence caused by the mixing of airflows from different directions, and improving the overall airflow volume.

[0081] Optionally, the air outlet grilles 4011 are provided in both the first and second air outlet sections; the air outlet grilles 4011 are evenly distributed and are suitable for evenly diffusing the airflow in the air outlet unit 4 to the external structure.

[0082] In this embodiment, an air outlet unit 3 is provided, which is provided with an annular air outlet 301. The annular air outlet 301 is an extra-long "O"-shaped air outlet. An air outlet grille 3011 is provided inside the annular air outlet 301 to ensure uniform airflow while achieving 360° all-round air delivery, thereby further expanding the air delivery range and achieving the purpose of uniform heating.

[0083] Specifically, the volute outlet 102 of the fan assembly is oriented along the width direction.

[0084] Combination Figure 2 , Figure 3 As shown, the volute outlet 102 of the fan assembly is oriented along the width direction; in this embodiment, the first volute outlet 1021 of the first fan assembly 11 and the second volute outlet 1022 of the second fan assembly are oriented along the width direction to shorten the length of the outlet air duct in the ventilation mode, reduce the flow loss along the flow process, and ensure the ventilation performance.

[0085] Specifically, the heater also includes a damper 4, which is connected to at least one of the N sets of volute outlets 102 of the N sets of the fan assembly.

[0086] Combination Figure 3 As shown, in this embodiment, the damper 4 is connected to at least one of the first volute outlet 1021 of the first fan assembly 11 and the second volute outlet 1022 of the second fan assembly.

[0087] As a variation, a connecting conversion head can be added to effectively integrate the air exchange port 7 with the two outlet airflows of the first volute outlet 1101 of the first fan assembly 11 and the second volute outlet 1201 of the second fan assembly 12, so as to improve the ventilation performance.

[0088] Optionally, the heater also includes a face mask 5, which has an annular groove 501, and the annular groove 501 is adapted to limit and fix the air outlet unit 3.

[0089] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A heater, characterized in that, include: A fan assembly having a volute outlet (102) suitable for air discharge. An air outlet unit (3) is provided with an annular air outlet (301). The outer wall of the guide (22) is adapted to connect the volute outlet (102) and the annular air outlet (301). The inner wall (23) is spaced apart from the outer wall (22), and a flow guide cavity (24) is formed between the outer wall (22) and the inner wall (23). The flow guide cavity (24) is adapted to guide the airflow from the volute outlet (102) toward the annular air outlet (301) for uniform discharge. The face mask (5) is provided with an annular groove (501), which is suitable for limiting and fixing the air outlet unit (3); The number of wind turbine components is N sets; The flow guiding cavity (24) includes N sub-cavities (240) suitable for flow guiding and N corresponding flow collecting ports (201); the N flow collecting ports (201) are connected to the N volute outlets (102) in a one-to-one correspondence; The flow guiding cavity (24) further includes a flow expansion port (202), which is divided into N segments. Each segment of the flow expansion port (202) is connected to a corresponding sub-cavity (240). The flow expansion port (202) matches the shape of the air outlet unit (3) and is connected to it. Wherein, N≥2. The heater also includes: A flow guide grille (21) is provided at the flow collection port (201) and is suitable for rectifying and breaking vortices in the airflow; the number of flow guide grilles (21) is N sets, and the N sets of flow guide grilles (21) are provided one-to-one with the N flow collection ports (201), wherein N≥2; The flow guide grille (21) is provided with a grid plate, and the grid plate of the flow guide grille (21) forms a preset angle α with the X-axis, where 0 < α < 180°; The flow guide grille (21) has multiple grille plates, and the angle α of the multiple flow guide grille plates (21) decreases sequentially along the X-axis direction.

2. The heater according to claim 1, characterized in that, The total air passage area of ​​the expansion port (202) is greater than the total air passage area of ​​the collection port (201).

3. The heater according to claim 2, characterized in that, The outer wall (22) and the inner wall (23) of the guide form a funnel-shaped air guide structure. One end of the funnel-shaped air guide structure is provided with the flow collection port (201), and the other end is provided with the flow expansion port (202).

4. The heater according to claim 1, characterized in that, The annular air outlet (301) is divided into N segments, and each segment of the annular air outlet (301) is connected to one of the fan components.

5. The heater according to claim 1, characterized in that, The volute outlet (102) of the fan assembly is oriented along the width direction.

6. The heater according to claim 1, characterized in that, It also includes a damper (4) that is connected to at least one of the N sets of the volute outlets (102) of the N sets of the fan assembly.

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