Air handling device and fan heater

Abstract

The utility model discloses an air treatment equipment and fan heater, air treatment equipment includes: casing, centrifugal fan wheel, heating element and coil module, and casing is equipped with the heat dissipation area, and centrifugal fan wheel is located in the casing, on the radial direction of centrifugal fan wheel, and the heat dissipation area is located centrifugal fan wheel's radial outside, and heating element is located in the casing, and coil module includes the electromagnetic coil and the power component that links to each other with electromagnetic coil, and electromagnetic coil is used to produce magnetic field to make heating element heat, on the radial direction of centrifugal fan wheel, and the power component is located between centrifugal fan wheel and heat dissipation area. Therefore, by setting up heat dissipation area on the casing, and in the radial direction of centrifugal fan wheel, the power component is arranged between the heat dissipation area and centrifugal fan wheel, so that the air exhausted by centrifugal fan wheel can heat dissipation power component, and the air after heat exchange with the power component can be discharged from the casing through the heat dissipation area, to improve the heat dissipation efficiency of the power component, and reduce the risk of overheating of the power component.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an air handling device and a heater. Background Technology

[0002] A fan heater is a type of heater that uses convection to quickly raise the room temperature. Fan heaters are also small in size and lightweight, making them particularly suitable for heating small spaces such as homes and offices.

[0003] In related technologies, the power module inside the heater has poor heat dissipation, is prone to overheating, affects the operational stability of the power module, shortens its service life, and poses safety hazards. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air handling device in which the power supply component has good heat dissipation, which is beneficial to improving the operational stability of the power supply component.

[0005] An air handling device according to an embodiment of the present invention includes: a housing having an air inlet, an air outlet, and a heat dissipation area; a centrifugal impeller disposed within the housing to guide air from the air inlet to the air outlet, wherein the heat dissipation area is located radially outward of the centrifugal impeller; a heating element disposed within the housing and configured to generate heat under the action of a magnetic field; and a coil module including an electromagnetic coil and a power supply assembly connected to the electromagnetic coil, wherein the electromagnetic coil generates a magnetic field to cause the heating element to generate heat, and the power supply assembly is located radially between the centrifugal impeller and the heat dissipation area.

[0006] According to the air handling equipment of this utility model embodiment, a heat dissipation area is provided on the housing, and a power supply component is disposed between the heat dissipation area and the centrifugal impeller in the radial direction of the centrifugal impeller. This allows the air discharged from the centrifugal impeller to dissipate heat from the power supply component, and the air after heat exchange with the power supply component can be discharged from the housing through the heat dissipation area. This improves the heat dissipation efficiency of the power supply component, reduces the risk of overheating of the power supply component, thereby improving the operational stability of the power supply component, extending its service life, and reducing safety hazards.

[0007] According to some embodiments of the present invention, the heating element is formed in a cylindrical shape, the first part of the centrifugal impeller is located inside the heating element, the second part of the centrifugal impeller is located outside the heating element, and the power supply assembly is located between the second part and the heat dissipation area.

[0008] According to some embodiments of the present invention, the second part is provided with a clearance space to avoid the power supply component.

[0009] According to some embodiments of the present invention, the second part is located on the side of the heating element facing the air inlet.

[0010] According to some embodiments of the present invention, the power supply assembly includes a circuit board and components connected to the circuit board, wherein the components are located on the side of the circuit board facing the air inlet.

[0011] According to some embodiments of the present invention, the component includes an IGBT, which is opposite to the heat dissipation area.

[0012] According to some embodiments of the present invention, the heat dissipation area includes a plurality of spaced heat dissipation holes.

[0013] According to some embodiments of the present invention, the distance between the two furthest points of each heat dissipation hole is in the range of 1mm-5mm, and / or the spacing between adjacent heat dissipation holes is in the range of 2mm-6mm.

[0014] According to some embodiments of the present invention, in the axial direction of the centrifugal impeller, the air inlet is opposite to the air outlet, and the heat dissipation area is located at the bottom of the housing.

[0015] According to some embodiments of the present invention, the coil module includes a coil support, the electromagnetic coil is fixed to the coil support, the coil support is sleeved on the heating element, and a first air flow channel is defined between the coil support and the heating element, the first air flow channel being located radially outside the centrifugal impeller.

[0016] According to some embodiments of the present invention, the air handling equipment further includes a shielding component and a shielding bracket. The shielding bracket is fixed to the housing, and the shielding component is disposed on the shielding bracket and located between the coil module and the housing. The shielding component is a magnetic material component.

[0017] According to some embodiments of the present invention, the power supply assembly is fixed to the shielding bracket.

[0018] The second objective of this utility model is to provide a heater.

[0019] A warm air heater, comprising the aforementioned air handling equipment.

[0020] The aforementioned warm air blower has the same advantages as the air handling equipment described above, and will not be repeated here.

[0021] According to some embodiments of the present invention, the heater further includes a bracket, and the air handling equipment is swayably mounted on the bracket.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is an exploded view of the air handling equipment described in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the air handling equipment described in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Sectional view at AA;

[0027] Figure 4 This is a schematic diagram of the airflow path in an air handling unit.

[0028] Figure 5 This is a schematic diagram illustrating the interaction between the centrifugal impeller and the power supply assembly according to an embodiment of the present invention.

[0029] Figure 6 This is a bottom view of the air handling equipment described in this embodiment of the utility model;

[0030] Figure 7 This is a cross-sectional view of the air handling equipment described in an embodiment of the present utility model;

[0031] Figure 8 This is a schematic diagram of the centrifugal impeller described in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the heater described in an embodiment of the present invention.

[0033] Figure label:

[0034] Air handling unit 100, first air flow channel 101

[0035] 110 housing, 111 air inlet, 112 air outlet, 113 main body of housing, 114 air inlet grille.

[0036] Heat dissipation area 115, heat dissipation hole 1151,

[0037] Centrifugal fan 120, Part 1 121

[0038] Part Two, Section 122: Avoidance Space, Section 1221:

[0039] Heating element 130

[0040] Coil module 140, coil bracket 141, winding protrusion 1411

[0041] Power supply assembly 142, circuit board 1421, component 1422,

[0042] Shielding bracket 150, mounting groove 151, airflow guide 152, through hole 1521

[0043] First drive unit 160, drive power module 170

[0044] Heater 200, bracket 210, base 220. Detailed Implementation

[0045] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0046] In the description of this utility model, it should be understood that the terms "center," "thickness," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0048] The following is for reference. Figures 1-8 This invention describes an air handling device 100 according to an embodiment of the present invention.

[0049] Combination Figures 1 to 3 According to an embodiment of the present invention, an air handling device 100 includes a housing 110 and a centrifugal impeller 120. The housing 110 is provided with an air inlet 111 and an air outlet 112. The centrifugal impeller 120 is disposed inside the housing 110 to guide air from the air inlet 111 to the air outlet 112. After the air enters the housing 110 from the air inlet 111, the centrifugal impeller 120 can drive the air entering the housing 110 to flow from the air inlet 111 toward the air outlet 112, thereby improving the air flow efficiency inside the housing 110.

[0050] Combination Figures 1 to 3 The air handling unit 100 also includes a heating element 130 and a coil module 140. The heating element 130 is disposed inside the housing 110 and is configured to generate heat under the action of a magnetic field. The coil module 140 includes an electromagnetic coil and a power supply component 142 connected to the electromagnetic coil. The electromagnetic coil is used to generate a magnetic field to make the heating element 130 generate heat.

[0051] Specifically, the power supply component 142 can supply current to the electromagnetic coil. When the electromagnetic coil is energized, it can generate a magnetic field. The heating element 130 can generate heat under the action of the magnetic field. Through the cooperation of the electromagnetic coil and the heating element 130, electromagnetic induction heating can be achieved. The electromagnetic induction heating method has the advantages of uniform heating and rapid response, which is conducive to improving the heating efficiency of the heating element 130. After the heating element 130 generates heat, it can heat the air entering the housing 110, thereby realizing the function of the air handling equipment 100 outputting hot air.

[0052] Among them, combined Figures 1 to 4 The housing 110 is provided with a heat dissipation area 115. In the radial direction of the centrifugal impeller 120, the heat dissipation area 115 is located on the radial outer side of the centrifugal impeller 120. The power supply assembly 142 is located between the centrifugal impeller 120 and the heat dissipation area 115.

[0053] The centrifugal impeller 120 has an axial air intake and a radial air outlet. The power supply component 142 is located in the radial direction of the centrifugal impeller 120. The air discharged from the centrifugal impeller 120 can flow through the power supply component 142 to dissipate heat from the power supply component 142, thereby reducing the risk of overheating of the power supply component 142 and ensuring the normal operation of the air handling equipment 100.

[0054] Furthermore, in the radial direction of the centrifugal impeller 120, the heat dissipation area 115 is located on the side of the power supply assembly 142 away from the centrifugal impeller 120. The air after heat dissipation of the power supply assembly 142 can be directly discharged from the housing 110 through the heat dissipation area 115 without having to flow around the power supply assembly 142 to the air outlet 112. This helps to reduce the wind resistance in the housing 110, improve the efficiency of air discharge, and prevent the air after heat exchange with the power supply assembly 142 from accumulating in the housing 110, thereby improving the heat dissipation efficiency of the power supply assembly 142. This further helps to reduce the risk of overheating of the power supply assembly 142, improve the operational stability of the power supply assembly 142, and help ensure the normal operation of the air handling equipment 100.

[0055] It should be noted that the heat dissipation area 115 can be directly opposite the power supply component 142 in the radial direction of the centrifugal fan 120, or the heat dissipation area 115 can be offset relative to the power supply component 142 in the axial direction of the centrifugal fan 120, as long as the heat dissipation requirements of the power supply component 142 can be met.

[0056] In related technologies, the power module inside the heater has poor heat dissipation, is prone to overheating, affects the operational stability of the power module, shortens its service life, and poses safety hazards.

[0057] This application provides a heat dissipation area 115 on the housing 110, and the power supply component 142 is disposed between the heat dissipation area 115 and the centrifugal impeller 120 in the radial direction of the centrifugal impeller 120. This allows the air discharged from the centrifugal impeller 120 to dissipate heat from the power supply component 142, and the air after heat exchange with the power supply component 142 can be discharged from the housing 110 through the heat dissipation area 115. This improves the heat dissipation efficiency of the power supply component 142, reduces the risk of overheating of the power supply component 142, thereby improving the operational stability of the power supply component 142, extending its service life, and reducing safety hazards.

[0058] Combination Figures 1 to 4 In some embodiments of this utility model, the heating element 130 is formed in a cylindrical shape, and the first part 121 of the centrifugal impeller 120 is located inside the heating element 130.

[0059] Specifically, the centrifugal impeller 120 includes a first part 121 and a second part 122. The first part 121 is disposed inside the heating element 130. The air discharged from the first part 121 flows through the heating element 130 to dissipate heat from the heating element 130. At the same time, since the heating element 130 is formed into a cylindrical shape, that is, in the radial direction of the centrifugal impeller 120, the heating element 130 is sleeved on the first part 121. The heating element 130 can restrict the radial diffusion of the air discharged from the first part 121 in the radial direction of the centrifugal impeller 120, which is beneficial to improving the heat dissipation effect of the air on the heating element 130. In other words, it is beneficial to improve the efficiency of the heating element 130 in heating the air, and thus to improve the efficiency of the air handling equipment 100 in outputting hot air.

[0060] Furthermore, the second part 122 of the centrifugal impeller 120 is located outside the heating element 130, and the power supply assembly 142 is located between the second part 122 and the heat dissipation area 115.

[0061] It should be noted that "outer side of heating element 130" can be understood as the outer side of heating element 130 in the axial direction of centrifugal impeller 120.

[0062] Optionally, the heating element 130 can be formed in the shape of a cylinder or a conical cylinder, etc. The specific shape of the heating element 130 is not limited here.

[0063] In the radial projection plane of the centrifugal impeller 120, the orthographic projection plane of the second part 122 does not coincide with the orthographic projection plane of the heating element 130. In the axial direction of the centrifugal impeller 120, the power supply assembly 142 is correspondingly arranged with the second part 122 so that the power supply assembly 142 can be arranged away from the heating element 130 to avoid mutual interference between the power supply assembly 142 and the heating element 130 during installation. This is beneficial to improving the installation convenience of the power supply assembly 142 and the heating element 130, and at the same time, it can reduce the impact of the heat generated by the heating element 130 on the power supply assembly 142 and reduce the risk of overheating of the power supply assembly 142.

[0064] Furthermore, the power supply component 142 is also correspondingly arranged with the heat dissipation area 115. The air after the power supply component 142 dissipates heat can flow to the heat dissipation area 115 in the radial direction of the centrifugal fan 120 and be discharged from the housing 110 through the heat dissipation area 115, so as to shorten the flow path of the air after heat exchange with the power supply component 142, which is beneficial to improve the heat dissipation efficiency of the power supply component 142.

[0065] Combination Figures 1 to 5 In some embodiments of this utility model, the second part 122 is provided with a clearance space 1221 for avoiding the power supply assembly 142.

[0066] For example, the clearance space 1221 can be recessed from the outer peripheral wall of the second part 122 toward the direction close to the rotation center line of the centrifugal impeller 120 in the radial direction of the centrifugal impeller 120. At least a portion of the power supply assembly 142 can be disposed in the clearance space 1221, which helps to reduce the space required to arrange the power supply assembly 142 in the housing 110 and can realize the integration of the power supply assembly 142 with the centrifugal impeller 120. This helps to improve the structural compactness of the internal components of the housing 110, thereby helping to reduce the volume of the air handling equipment 100 and facilitating the miniaturization design of the air handling equipment 100.

[0067] It should be noted that "the outer peripheral wall of the second part 122" refers to the side surface of the second part 122 opposite to the housing 110 in the radial direction of the centrifugal impeller 120.

[0068] Optionally, the power supply assembly 142 may be entirely disposed within the clearance space 1221, or in the radial direction of the centrifugal impeller 120, the portion of the power supply assembly 142 near the centrifugal impeller 120 may be disposed within the clearance space 1221. It is understood that the portion of the power supply assembly 142 located within the clearance space 1221 may be determined according to actual production requirements, and no specific limitation is made here.

[0069] Reference Figure 5 In some embodiments of the present invention, in the radial direction of the centrifugal impeller 120, the radially outer ends of some blades of the second part 122 are recessed toward the rotation axis of the centrifugal impeller 120 to define a clearance space 1221.

[0070] Specifically, the clearance space 1221 is located at the air outlet end of the centrifugal impeller 120. That is, at least a portion of the clearance space 1221 is located in the air outlet area of ​​the blades. In the radial direction of the centrifugal impeller 120, the radial dimension of the blades directly opposite the clearance space 1221 is smaller than the radial dimension of the blades that are offset from the clearance space 1221. Thus, by designing the blades of the second part 122, the second part 122 can form a clearance space 1221 that is recessed in the radial direction of the centrifugal impeller 120. This facilitates the placement of the power supply component 142 within the clearance space 1221, achieving the integration of the power supply component 142 with the centrifugal impeller 120. At the same time, it facilitates the dissipation of heat from the air discharged from the second part 122 on the power supply component 142.

[0071] like Figure 5 As shown, in some embodiments of this utility model, the portion of the power supply assembly 142 located within the clearance space 1221 is spaced apart from the inner wall of the clearance space 1221.

[0072] Since the clearance space 1221 is located on the second part 122, the inner wall of the clearance space 1221 is part of the second part 122. In order to prevent the power supply component 142 from interfering with the operation of the centrifugal impeller 120 due to contact between the power supply component 142 and the inner wall of the clearance space 1221, it is necessary to set a gap between the part of the power supply component 142 located in the clearance space 1221 and the inner wall of the clearance space 1221. This reduces the risk of the power supply component 142 interfering with the operation of the centrifugal impeller 120, which is conducive to improving the smoothness of the operation of the centrifugal impeller 120 and thus helps to ensure the efficiency of the centrifugal impeller 120 in driving airflow.

[0073] Combination Figure 3 and Figure 5 In some embodiments of this utility model, in the axial direction of the centrifugal impeller 120, the distance between any side of the portion of the power supply assembly 142 located in the clearance space 1221 and the clearance space 1221 is a first distance S1, where S1 > 8 mm.

[0074] Considering that the power supply component 142 is prone to move in the axial direction of the centrifugal impeller 120 when the air handling equipment 100 shakes, by making S1 > 8mm, sufficient movement space is reserved for the power supply component 142 in the axial direction of the centrifugal impeller 120. This helps to further reduce the risk of the power supply component 142 contacting the inner wall of the clearance space 1221, thereby further reducing the risk of the power supply component 142 interfering with the operation of the centrifugal impeller 120.

[0075] Combination Figure 3 and Figure 5 In some embodiments of this utility model, in the radial direction of the centrifugal impeller 120, the distance between the portion of the power supply assembly 142 located in the clearance space 1221 and the clearance space 1221 is a second distance S2, where S2 > 8 mm.

[0076] Considering that the power supply component 142 may move in the radial direction of the centrifugal impeller 120 when the air handling equipment 100 shakes, by making S2 > 8mm, sufficient movement space is reserved for the power supply component 142 in the radial direction of the centrifugal impeller 120. This helps to further reduce the risk of the power supply component 142 contacting the inner wall of the clearance space 1221, thereby further reducing the risk of the power supply component 142 interfering with the operation of the centrifugal impeller 120.

[0077] Combination Figures 1 to 4 In some embodiments of this utility model, the second part 122 is located on the side of the heating element 130 facing the air inlet 111.

[0078] In other words, in the axial direction of the centrifugal impeller 120, the second part 122 is positioned closer to the air inlet 111 than the first part 121. In the radial direction of the centrifugal impeller 120, the power supply assembly 142 is positioned opposite to the second part 122. Therefore, the power supply assembly 142 is positioned closer to the air inlet 111 than the heat-generating element 130. After the air enters the housing 110 from the air inlet 111, it can preferentially flow through the power supply assembly 142, so that the air can preferentially dissipate heat from the power supply assembly 142, which is beneficial to further improve the heat dissipation efficiency of the power supply assembly 142.

[0079] Combination Figure 1 and Figure 4 In some embodiments of the present invention, the power supply assembly 142 includes a circuit board 1421 and components 1422 connected to the circuit board 1421, with the components 1422 located on the side of the circuit board 1421 facing the air inlet 111.

[0080] For example, component 1422 is arranged on circuit board 1421 and electrically connected to circuit board 1421. When power supply assembly 142 is working, component 1422 generates heat. In the axial direction of centrifugal fan 120, component 1422 is arranged on the side of circuit board 1421 facing air inlet 111, so that component 1422 can be arranged away from heat-generating component 130. This helps to reduce the impact of heat generated by heat-generating component 130 on component 1422, thereby protecting component 1422. When air enters housing 110 from air inlet 111, air can preferentially flow through component 1422 to dissipate heat from component 1422, thereby improving the heat dissipation efficiency of component 1422.

[0081] In some embodiments of this utility model, component 1422 includes IGBT (Insulated Gate Bipolar Transistor), and the IGBT is disposed opposite to the heat dissipation area 115.

[0082] Specifically, the heat generated by the power supply component 142 is mainly due to the continuous switching of the IGBT during the operation of the power supply component 142. Therefore, by setting the IGBT and the heat dissipation area 115 opposite to each other, the air flowing through the IGBT to dissipate heat can be directly discharged from the housing 110 through the heat dissipation area 115, which is beneficial to improving the heat dissipation efficiency of the IGBT, thereby improving the safety of the power control component 142.

[0083] like Figure 6 As shown, in some embodiments of this utility model, the heat dissipation area 115 includes a plurality of spaced heat dissipation holes 1151.

[0084] For example, the heat dissipation holes 1151 can be provided through the housing 110 along the thickness direction of the housing 110. Multiple heat dissipation holes 1151 are arranged at intervals along the axial and circumferential directions of the centrifugal impeller 120 on the housing 110, that is, multiple heat dissipation holes 1151 are arranged in an array on the housing 110 and are respectively connected to the internal space of the housing 110. The air after heat exchange with the power supply component 142 can flow out from the housing 110 through the multiple heat dissipation holes 1151. By providing multiple heat dissipation holes 1151, it is beneficial to improve the efficiency of the air after heat exchange with the power supply component 142 flowing out from the housing 110, thereby improving the heat dissipation efficiency of the power supply component 142.

[0085] Reference Figure 6 In some embodiments of this utility model, the distance between the two furthest points of each heat dissipation hole 1151 ranges from 1mm to 5mm.

[0086] For example, the heat dissipation hole 1151 can be constructed as a circular hole, an elliptical hole, or other irregularly shaped holes. The distance between the two farthest points of each heat dissipation hole 1151 (e.g., the diameter of the circular hole, the major axis of the elliptical hole, etc.) is defined as Dk, where 1mm≤Dk≤5mm. This facilitates the processing of the heat dissipation hole 1151, reduces the resistance of the heat dissipation hole 1151 to airflow, improves the efficiency of airflow through the heat dissipation hole 1151, and also enhances the aesthetics of the air handling equipment 100.

[0087] When Dk < 1mm, the heat dissipation hole 1151 is difficult to process, which can lead to poor processing convenience of the housing 110 and affect the production efficiency of the housing 110. In addition, the heat dissipation hole 1151 has high wind resistance, which is not conducive to air flow. When Dk > 5mm, the internal structure of the housing 110 can be clearly seen through the heat dissipation hole 1151, which affects the aesthetics of the air handling equipment 100. In addition, debris (such as dust or water) can easily enter the housing 110 through the heat dissipation hole 1151, affecting the operation of the internal components of the housing 110 and shortening the service life of the air handling equipment 100.

[0088] It is understandable that the specific shape of the heat dissipation hole 1151 can be determined according to actual production requirements, and no specific limitation is made here.

[0089] like Figure 6 As shown, the spacing between adjacent heat dissipation holes 1151 ranges from 2mm to 6mm.

[0090] For example, the distance between two adjacent heat dissipation holes 1151 is defined as Sk, 2mm≤Sk≤6mm, which helps to ensure the efficiency of air flow through the heat dissipation holes 1151 while ensuring the structural strength of the housing 110 at the heat dissipation area 115, and reducing the risk of damage to the location of the housing 110 where the heat dissipation area 115 is provided.

[0091] Specifically, when Dk is the minimum value of 1mm, Sk can be 2mm. This increases the density of the heat dissipation holes 1151 by reducing the spacing between adjacent heat dissipation holes 1151 when the hole diameter of the heat dissipation hole 1151 is small, thereby improving the efficiency of air flow through the heat dissipation holes 1151. When Dk is the maximum value of 5mm, the resistance of the heat dissipation holes 1151 to air flow is small, which can effectively ensure the efficiency of air discharge through the heat dissipation holes 1151. At this time, Sk can be 6mm to ensure the structural strength of the heat dissipation area 115 of the housing 110 by increasing the spacing between the heat dissipation holes 1151, thereby reducing the risk of damage to the housing 110.

[0092] Optionally, the heat dissipation hole 1151 can individually satisfy the requirement that the distance between the two furthest points of the heat dissipation hole 1151 is in the range of 1mm-5mm, or the heat dissipation hole 1151 can individually satisfy the requirement that the spacing between adjacent heat dissipation holes 1151 is in the range of 2mm-6mm, so as to facilitate the processing of the heat dissipation area 115; or the heat dissipation hole 1151 can simultaneously satisfy the above two conditions, so as to ensure the heat dissipation effect and the structural strength of the heat dissipation area 115 of the housing 110. It is understood that the specific structure of the heat dissipation area 115 can be determined according to the actual production requirements, and is not specifically limited here.

[0093] Combination Figures 1 to 4 In some embodiments of this utility model, the air inlet 111 and the air outlet 112 are opposite each other in the axial direction of the centrifugal impeller 120, and the heat dissipation area 115 is located at the bottom of the housing 110.

[0094] In other words, the air handling unit 100 has air intake on one side and air outlet on the other side in the axial direction of the centrifugal impeller 120. "The heat dissipation area 115 is located at the bottom of the housing 110" can be understood as the heat dissipation area 115 being set perpendicular to the air intake and exhaust directions of the air handling unit 100, and the heat dissipation area 115 being set on the side of the housing 110 facing the ground, so as to reduce the risk of debris falling into the housing 110 through the heat dissipation area 115. This helps to prevent debris from entering the housing 110 and affecting the operation of the internal components of the housing 110, and helps to improve the service life and safety of the air handling unit 100.

[0095] For example, when water enters the housing 110, it can easily cause a short circuit in the power supply component 142, leading to a fire. When large dust particles enter the housing 110, they can easily interfere with the operation of the centrifugal impeller 120.

[0096] Combination Figures 1 to 4 In some embodiments of this utility model, the coil module 140 includes a coil support 141, an electromagnetic coil is fixed to the coil support 141, and the coil support 141 is sleeved on the heating element 130.

[0097] For example, the coil support 141 can be formed into a ring and sleeved on the heating element 130. The coil support 141 can provide stable support for the electromagnetic coil, which is beneficial to improving the assembly stability of the electromagnetic coil. At the same time, the heating element 130 is fixed to the coil support 141, and the coil support 141 can also provide stable support for the heating element 130, which is beneficial to improving the assembly stability of the heating element 130. Thus, the modular assembly of the heating element 130, the coil support 141 and the electromagnetic coil can be realized, which is beneficial to improving the assembly efficiency of the air handling equipment 100.

[0098] Furthermore, a first airflow channel 101 is defined between the coil support 141 and the heating element 130, and the first airflow channel 101 is located radially outside the centrifugal impeller 120.

[0099] In the radial direction of the centrifugal impeller 120, the coil support 141 and the heating element 130 are spaced apart and together define the first air flow channel 101. A portion of the air discharged from the second part 122 can flow into the first air flow channel 101 to dissipate heat on the side of the heating element 130 facing away from the first part 121. This helps to improve the heat dissipation effect of the heating element 130, thereby improving the efficiency of the air handling equipment 100 in outputting hot air. At the same time, it helps to prevent the risk of overheating on the side of the heating element 130 facing away from the first part 121, thus improving the safety of the air handling equipment 100.

[0100] Combination Figures 1 to 4 In some specific embodiments, in the radial direction of the centrifugal impeller 120, the coil support 141 is provided with a plurality of winding protrusions 1411 on the side away from the heating element 130 (i.e., the outer peripheral wall of the coil support 141). The plurality of winding protrusions 1411 are arranged at intervals in the axial direction of the centrifugal impeller 120, and a winding groove is formed between two adjacent winding protrusions 1411. The electromagnetic coil is mounted on the coil support 141 through the plurality of winding grooves to improve the assembly reliability of the electromagnetic coil and the coil support 141.

[0101] Combination Figures 1 to 3In some embodiments of this utility model, the air handling equipment 100 further includes a shielding component and a shielding bracket 150. The shielding bracket 150 is fixed to the housing 110, and the shielding component is disposed on the shielding bracket 150 and located between the coil module 140 and the housing 110. The shielding component is a magnetic material component.

[0102] For example, in the radial direction of the centrifugal impeller 120, a shielding bracket 150 is disposed between the electromagnetic coil and the housing 110. A mounting groove 151 is formed on the shielding bracket 150, and the shielding component can be embedded in the mounting groove 151 so that the shielding component is fixed to the shielding bracket 150. The shielding bracket 150 is further fixed to the housing 110 to improve the assembly reliability of the shielding bracket 150, thereby improving the assembly reliability of the shielding component.

[0103] Considering that after the electromagnetic coil is energized, a magnetic field will also be generated on the side of the electromagnetic coil away from the heating element 130 in the radial direction of the centrifugal impeller 120, causing magnetic field leakage, a shielding component is set to reduce the amount of magnetic field leakage on the side of the electromagnetic coil away from the heating element 130, and to increase the magnetic field strength on the side of the electromagnetic coil close to the heating element 130, thereby improving the heating effect of the heating element 130.

[0104] It should be noted that the magnetic materials can be neodymium iron boron permanent magnets, ferrite permanent magnets, silicon steel, metal soft magnetic powder cores, and ferrite soft magnets, etc.

[0105] In some embodiments of this utility model, the power supply assembly 142 is fixed to the shielding bracket 150. After the power supply assembly 142, the shielding component and the shielding bracket 150 are assembled, they are further fixed to the housing 110 by the shielding bracket 150, so as to realize the modular assembly of the power supply assembly 142, the shielding component and the shielding bracket 150, which is beneficial to improving the assembly convenience of the air handling equipment 100.

[0106] Combination Figures 1 to 3 In some embodiments of this utility model, a guide 152 is provided on the side of the shielding bracket 150 facing the air inlet 111. The guide 152 is correspondingly provided with the second part 122 and is used to guide the air from the air outlet side of the second part 122 toward the electromagnetic coil.

[0107] By aligning the air guide 152 with the second part 122, the air guide 152 directs the air flowing out of the second part 122, allowing the air discharged from the second part 122 to flow towards the electromagnetic coil. This improves the efficiency of airflow to the electromagnetic coil, thereby enhancing the heat dissipation of the electromagnetic coil, reducing the risk of overheating, and ensuring the normal operation of the electromagnetic coil.

[0108] Combination Figures 1 to 3In some embodiments of this utility model, in the radial direction of the centrifugal impeller 120, the guide element 152 and the power supply component 142 are distributed on both sides of the second part 122, so that the guide element 152 and the power supply component 142 can avoid each other, prevent interference between the guide element 152 and the power supply component 142, facilitate the arrangement of the power supply component 142 and the guide element 152, and at the same time help prevent the power supply component 142 from affecting the air guiding effect of the guide element 152.

[0109] Combination Figures 7 to 8 In some embodiments of this utility model, in the axial direction of the centrifugal impeller 120, the diameter of the second part 122 is D, and the diameter of the first part 121 is d, 0.5≤d / D≤0.9, so that the air driven by the second part 122 can flow through the first air flow channel 101 located radially outside the heating element 130 and the electromagnetic coil. This ensures the heat dissipation effect of the airflow driven by the first part 121 on the heating element 130, while also improving the heat dissipation efficiency of the side of the heating element 130 away from the first part 121, reducing the risk of local overheating of the heating element 130, and further improving the heat dissipation efficiency of the electromagnetic coil to prevent overheating of the electromagnetic coil.

[0110] Combination Figure 7 and Figure 8 In some embodiments of this utility model, the axial dimension of the centrifugal impeller 120 is defined as L, and the axial dimension of the first part 121 is defined as s, 0.4≤s / L≤0.8, which is beneficial to make the axial dimension of the first part 121 match the axial dimension of the heating element 130, and at the same time, it is beneficial to ensure the heat dissipation effect of the centrifugal impeller 120 on the heating element 130 and the electromagnetic coil.

[0111] Combination Figures 1 to 3 In some embodiments of this utility model, the air handling equipment 100 further includes a first driving device 160 and a driving power module 170. The driving power module 170 is used to supply current to the first driving device 160. After the first driving device 160 is powered on, it can drive the centrifugal fan 120 to run.

[0112] Combination Figures 1 to 3 In some embodiments of this utility model, a through hole 1521 is formed on the flow guide 152 to allow the drive power module 170 to pass through. The drive power module 170 is disposed in the through hole 1521 and connected to the flow guide 152, thereby realizing the integration of the drive power module 170 and the flow guide 152, reducing the space required to arrange the drive power module 170, and improving the structural compactness of the internal components of the housing 110, which is conducive to realizing the miniaturization design of the air handling equipment 100.

[0113] Since the flow guide 152 and the power supply component 142 are respectively arranged on the radial sides of the second part 122, the power supply component 142 and the drive power module 170 can be spaced apart, which is beneficial to improving the electrical control reliability of the air handling equipment 100 and improving the space utilization rate inside the housing 110, thereby facilitating the miniaturization design of the air handling equipment 100.

[0114] In some embodiments of this utility model, the housing 110 includes a housing body 113, on which an air inlet 111 and an air outlet 112 are formed respectively. Components such as the heating element 130, coil module 140, centrifugal impeller 120, shielding component, and shielding bracket 150 can all be arranged inside the housing body 113. The housing body 113 can provide positioning support for the components arranged therein, which is beneficial to improving the structural stability of the air handling equipment 100. In addition, the housing body 113 can protect the above-mentioned components, which is beneficial to reducing the risk of damage to components such as the centrifugal impeller 120, thereby improving the service life of the air handling equipment 100.

[0115] Combination Figures 1 to 3 In some embodiments of this utility model, an air inlet screen 114 is provided at the air inlet 111 of the shell body 113. The air inlet screen 114 is detachably mounted on the shell body 113 so that the user can remove the air inlet screen 114 for cleaning, and at the same time facilitate the cleaning and maintenance of the internal structure of the shell body 113.

[0116] In some embodiments, when the air handling unit 100 is actually in use, the air inlet 111 is located on the rear side of the housing 110 and the air outlet 112 is located on the front side of the housing 110. That is, the air handling unit 100 takes in air from the rear side and outputs airflow forward.

[0117] The assembly method of the air handling equipment 100 will be briefly described below based on the structure of the air handling equipment 100 according to an embodiment of the present invention.

[0118] Assembly Method 1: The heating element 130 is fixedly connected to the coil support 141 with the electromagnetic coil. The drive power module 170 and the shielding component are fixedly mounted on the shielding support 150 (specifically, the drive power module 170 is mounted on the guide component 152 on the shielding support 150). The shielding support 150 is sleeved on the radially outer side of the coil support 141 and fixedly connected to the coil support 141. The centrifugal impeller 120 can be positioned in the center area of ​​the heating element 130 by hand. The power assembly 142 is arranged in the clearance space 1221, making... The power supply assembly 142 is fixedly connected to the shielding bracket 150, thereby realizing the modular assembly of the heating element 130, coil bracket 141, drive power module 170, power supply assembly 142, shielding element, shielding bracket 150 and centrifugal impeller 120. Then, the above components are placed into the housing body 113, and the coil bracket 141 is further fixedly connected to the housing body 113, and the centrifugal impeller 120 is connected to the housing body 113. Finally, the air inlet screen 114 is installed at the air inlet 111 of the housing body 113 to complete the assembly of the air handling equipment 100.

[0119] In order to ensure the assembly reliability of the components inside the shell body 113 and the shell 110, the shielding bracket 150 can be further connected to the shell body 113 to reduce the risk of the components inside the shell body 113 falling off the shell body 113.

[0120] Assembly Method 2: First, the heating element 130 is fixedly installed inside the shell body 113. Then, the coil bracket 141, which is equipped with an electromagnetic coil, is fitted onto the radial outer side of the heating element 130, and the coil bracket 141 is fixedly connected to the shell body 113. Next, the shielding bracket 150, which is equipped with a shielding component, a flow guide component 152, and a drive power module 170, is fitted onto the radial outer side of the coil bracket 141, and the shielding bracket 150 is fixedly connected to the shell body 113. Then, the centrifugal impeller 120 is positioned in the central area of ​​the heating element 130 and connected to the shell body 113. The power supply component 142 can be installed on the shielding bracket 150 or the shell body 113. Finally, the air inlet mesh cover 114 is installed at the air inlet 111 of the shell body 113 to complete the assembly of the air handling equipment 100.

[0121] Optionally, the above-mentioned fixed connection method can be to fix the components together by means of threaded connectors, so as to facilitate the disassembly, maintenance and cleaning of the air handling equipment 100. Of course, it is understood that the fixed connection method includes, but is not limited to, connecting by threaded connectors, or by means of snap-fit, etc. The specific fixed connection method can be determined according to the actual production requirements, and no specific limitation is made here.

[0122] In some other embodiments of this utility model, the heating element 130 can also be constructed as a component that has a heating function after being powered on, for example, the heating element 130 can be constructed as a PTC heating element.

[0123] like Figure 9 As shown, the heater 200 according to an embodiment of the present utility model includes the air handling equipment 100 described above.

[0124] Since the heater 200 is equipped with the aforementioned air handling unit 100, a heat dissipation area 115 is provided on the housing 110, and the power supply component 142 is disposed between the heat dissipation area 115 and the centrifugal impeller 120 in the radial direction of the centrifugal impeller 120. This allows the air discharged from the centrifugal impeller 120 to dissipate heat from the power supply component 142. The air that has exchanged heat with the power supply component 142 can be discharged from the housing 110 through the heat dissipation area 115, thereby improving the heat dissipation efficiency of the power supply component 142, reducing the risk of overheating of the power supply component 142, thereby improving the operational stability of the power supply component 142, extending the service life of the power supply component 142, and reducing the safety hazards of the power supply component 142.

[0125] Reference Figure 9 In some embodiments of this utility model, the heater 200 includes a bracket 210, and the air handling unit 100 is swayably mounted on the bracket 210.

[0126] For example, the heater 200 also includes a base 220, a bracket 210 rotatably connected to the base 220, and a second driving device is provided on the base 220. The second driving device can drive the bracket 210 to swing in the left and right direction relative to the base 220. The bracket 210 can form an installation space. The inner wall of the installation space is provided with a connecting part. The air handling equipment 100 is rotatably connected to the connecting part and accommodated in the installation space. For example, the connecting part of the bracket 210 clamps the air handling equipment 100 in the left and right direction and drives the air handling equipment 100 to swing up and down.

[0127] Optionally, the vertical swing of the air handling unit 100 can also be in the form of a guide rail. Alternatively, the bracket 210 can be mounted on the base 220, and the second drive device can be mounted on the bracket 210 and connected to the air handling unit 100 for transmission, so as to drive the air handling unit 100 to swing up and down or left and right.

[0128] The second drive unit can be configured as a drive motor.

[0129] In some embodiments of this utility model, the heater 200 has a cold air operation mode and a warm air operation mode, so that the heater 200 can provide suitable air output according to the user's needs, which is beneficial to improving the functionality of the heater 200.

[0130] When the heater 200 is in cold air operation mode, the centrifugal fan 120 starts, and the heating element 130 does not work, so as to ensure that the heater 200 can provide clean cold air, making the heater 200 suitable for cooling high-temperature environments, and at the same time helping to reduce the energy consumption of the heater 200.

[0131] When the heater 200 is in the warm air operation mode, the centrifugal fan 120 and the heating element 130 work simultaneously to ensure that the heater 200 can output hot air, so that the heater 200 can be used to heat the environment with low temperature.

[0132] In some embodiments, the cold air operation mode of the heater 200 needs to ensure that the output air speed of the heater 200 is high enough. That is, the cold air operation mode of the heater 200 has more speed settings than the warm air operation mode, and the maximum air speed in the cold air operation mode is greater than the maximum air speed in the warm air operation mode. For example, the cold air operation mode of the heater 200 can have 8 speed settings, and the warm air operation mode can have 3 speed settings. When the heater 200 switches directly from the 3rd speed setting in the cold air mode to the warm air mode, the heater 200 operates at the maximum speed setting (i.e., the third speed setting) in the warm air mode, and the heater 200 outputs the hot air most efficiently.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0134] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air handling device, characterized in that, include: The housing is provided with an air inlet, an air outlet, and a heat dissipation area; A centrifugal fan is disposed inside the housing to guide air from the air inlet to the air outlet. In the radial direction of the centrifugal fan, the heat dissipation area is located on the radial outer side of the centrifugal fan. A heating element is disposed within the housing and configured to generate heat under the influence of a magnetic field; A coil module, comprising an electromagnetic coil and a power supply assembly connected to the electromagnetic coil, wherein the electromagnetic coil is used to generate a magnetic field to cause the heating element to heat up, and the power supply assembly is located radially between the centrifugal impeller and the heat dissipation area.

2. The air handling equipment according to claim 1, characterized in that, The heating element is formed in a cylindrical shape, with a first part of the centrifugal impeller located inside the heating element, a second part of the centrifugal impeller located outside the heating element, and the power supply assembly located between the second part and the heat dissipation area.

3. The air handling equipment according to claim 2, characterized in that, The second part is provided with a clearance space to avoid the power supply component.

4. The air handling equipment according to claim 2, characterized in that, The second part is located on the side of the heating element facing the air inlet.

5. The air handling equipment according to claim 4, characterized in that, The power supply assembly includes a circuit board and components connected to the circuit board, the components being located on the side of the circuit board facing the air inlet.

6. The air handling equipment according to claim 5, characterized in that, The component includes an IGBT, which is positioned opposite to the heat dissipation area.

7. The air handling equipment according to claim 1, characterized in that, The heat dissipation area includes multiple spaced-apart heat dissipation holes.

8. The air handling equipment according to claim 7, characterized in that, The distance between the two furthest points of each heat dissipation hole ranges from 1mm to 5mm, and / or, The spacing between adjacent heat dissipation holes ranges from 2mm to 6mm.

9. The air handling equipment according to claim 1, characterized in that, Along the axial direction of the centrifugal impeller, the air inlet is opposite to the air outlet, and the heat dissipation area is located at the bottom of the housing.

10. The air handling equipment according to any one of claims 1-9, characterized in that, The coil module includes a coil support, the electromagnetic coil is fixed to the coil support, the coil support is sleeved on the heating element, and a first airflow channel is defined between the coil support and the heating element. The first airflow channel is located radially outside the centrifugal impeller.

11. The air handling equipment according to claim 10, characterized in that, It also includes a shielding component and a shielding bracket, the shielding bracket being fixed to the housing, the shielding component being disposed on the shielding bracket and located between the coil module and the housing, and the shielding component being a magnetic material component.

12. The air handling equipment according to claim 11, characterized in that, The power supply assembly is fixed to the shielding bracket.

13. A space heater, characterized in that, Includes the air handling equipment according to any one of claims 1-12.

14. The heater according to claim 13, characterized in that, It also includes a support frame on which the air handling equipment is swayably mounted.

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