Warm air blower

Abstract

The utility model relates to the technical field of heating equipment, in particular to a fan heater which comprises a shell, a hot air module, a cold air module and a mixing module. The shell is provided with an air inlet, an air outlet and an inner cavity, and the air inlet and the air outlet are both communicated with the inner cavity. The hot air module is arranged in the inner cavity, communicates with the air inlet and is used for obtaining cold air from the air inlet and heating the cold air to output hot air. The cold air module is arranged in the inner cavity, communicates with the air inlet and is used for obtaining cold air from the inlet air and outputting the cold air. The mixing module is arranged in the inner cavity and communicates with the air outlet, the mixing module further communicates with the hot air module and the cold air module at the same time, and the mixing module is used for mixing hot air output by the hot air module and cold air output by the cold air module to obtain warm air and blowing the warm air out of the air outlet. The warm air blower achieves temperature control by mixing hot air and cold air and has the advantages of being high in temperature adjusting speed and wide in temperature adjusting range.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a fan heater. Background Art

[0002] A fan heater is a very common heating device, which is equipped with a blowing module and a heating module inside. The heating module can heat the airflow formed by the blowing module, thereby blowing out hot air to achieve a heating effect. In order to meet the diverse heating needs of users, the fan heater needs to be able to adjust the blowing temperature. The current common temperature control method is to achieve temperature control by changing the heating power of the heating module (the greater the heating power, the higher the temperature, and the smaller the heating power, the lower the temperature) and adjusting the wind speed (the faster the wind speed, the higher the temperature, and the slower the wind speed, the lower the temperature). However, the temperature adjustment range of the above temperature adjustment methods is small and the temperature adjustment speed is slow, resulting in unsatisfactory temperature adjustment effect. Therefore, the above problems need to be solved urgently. Utility Model Content

[0003] The present application provides a heater, which includes a shell, a hot air module, a cold air module and a mixing module. The shell is provided with an air inlet, an air outlet and an inner cavity, and the air inlet and the air outlet are both connected to the inner cavity. The hot air module is arranged in the inner cavity and is connected to the air inlet. The hot air module is used to obtain cold air from the air inlet and heat it to output hot air. The cold air module is arranged in the inner cavity and is connected to the air inlet. The cold air module is used to obtain cold air from the air inlet and output cold air. The mixing module is arranged in the inner cavity and is connected to the air outlet. The mixing module is also connected to the hot air module and the cold air module at the same time. The mixing module is used to mix the hot air output by the hot air module and the cold air output by the cold air module to obtain warm air, and blow the warm air out from the air outlet.

[0004] Optionally, in some embodiments, the hot air module is provided with a hot air chamber connected to the air inlet, the cold air module is provided with a cold air chamber connected to the air inlet, and the mixing module is provided with a mixing chamber connected to the air outlet. Both the hot air chamber and the cold air chamber are connected to the mixing chamber, and the hot air chamber and the cold air chamber are isolated from each other.

[0005] Optionally, in some embodiments, the cold air module includes a first mounting bracket and a first air suction member, the first mounting bracket is connected to the shell, the first air suction member is arranged on the first mounting bracket and is located in the cold air cavity, and the air inlet end of the first air suction member faces the air inlet.

[0006] Optionally, in some embodiments, the hot air module includes a heating element and a second air suction element, the heating element is arranged on the first mounting bracket and is located in the hot air cavity, the air inlet end of the second air suction element faces the air inlet, and the heating element is located between the air inlet and the second air suction element.

[0007] Optionally, in some embodiments, the heater further includes an air inlet grille and a partition, the air inlet grille is arranged at the air inlet, the partition is arranged on the first mounting bracket and extends to the air inlet grille, and the partition surrounds the heating element to separate the heating element from the first air suction element.

[0008] Optionally, in some embodiments, a first vent is provided on the first mounting bracket, and the heating element is arranged on a side of the first mounting bracket close to the air inlet and corresponds to the first vent; the hot air module also includes an air guide member, which is connected to a side of the first mounting bracket away from the air inlet, and the air guide member is provided with an air guide channel, which connects the first vent with the mixing chamber.

[0009] Optionally, in some embodiments, the mixing module includes a second mounting bracket, one side of the second mounting bracket is connected to the inner wall of the shell, and the other side extends in a direction close to the air inlet and is separated from the inner wall of the shell; the second mounting bracket and at least part of the structure of the shell define a mixing chamber, and the second mounting bracket is provided with a second vent connected to the mixing chamber on the side away from the shell, and the second vent is connected to the hot air chamber.

[0010] Optionally, in some embodiments, a plurality of ventilation holes are provided on the second mounting bracket, and the ventilation holes connect the mixing chamber with the cold air chamber.

[0011] Optionally, in some embodiments, the mixing module further includes a third mounting bracket and a plurality of air guide blades arranged in the mixing chamber, the air guide blades being connected between the outer wall of the third mounting bracket and the inner wall of the shell, and the plurality of air guide blades surrounding the third mounting bracket and spaced apart from each other.

[0012] Optionally, in some embodiments, the hot air module further includes a driving member, which is arranged on a third mounting bracket, and the second air suction member is connected to the driving member; the heater further includes an air outlet net arranged at the air outlet, and a clearance port is provided on the air outlet net; one end of the third mounting bracket extends to the air outlet net and is located at the clearance port, and a portion of the third mounting bracket located at the clearance port is provided with a plurality of heat dissipation holes.

[0013] In the heater provided in the present application, a hot air module is used to form hot air in the inner cavity, a cold air module is used to form cold air in the inner cavity, and a mixing module is used to fully mix the hot air and the cold air to obtain warm air and blow it out. By controlling the air volume of the cold air and the hot air, precise temperature adjustment of the warm air can be achieved. Not only is the temperature adjustment fast, but the temperature adjustment range is also wide, which can meet the diverse heating needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the heater in some embodiments of the present application.

[0016] Figure 2 yes Figure 1 The structure diagram of the heater shown is from another perspective.

[0017] Figure 3 yes Figure 1 The structural cross-section of the heater is shown.

[0018] Figure 4 yes Figure 1 The structural diagram of the first sub-shell of the heater is shown.

[0019] Figure 5 yes Figure 4 The structure diagram of the first split shell shown is from another perspective.

[0020] Figure 6 yes Figure 1 The structural diagram of the second sub-shell of the heater is shown.

[0021] Figure 7 yes Figure 6 The structure diagram of the second partial shell shown is from another perspective.

[0022] Figure 8 yes Figure 1 The schematic structural diagram of the third subshell of the heater is shown.

[0023] Figure 9 yes Figure 8 The structure diagram of the third partial shell shown in another perspective.

[0024] Explanation of reference numerals: 100, heater; 11, housing; 111, air inlet; 112, air outlet; 113, inner cavity; 114, first sub-shell; 115, second sub-shell; 116, third sub-shell; 12, hot air module; 121, hot air cavity; 122, heating element; 123, second air suction element; 124, air guide element; 125, air guide channel; 126, driving element; 13, cold air module; 131, cold air cavity ; 132. First mounting bracket; 133. First vent; 134. First air suction member; 14. Mixing module; 141. Second mounting bracket; 142. Mixing chamber; 143. Second vent; 144. Ventilation hole; 145. Third mounting bracket; 146. Air guide blade; 147. Heat dissipation hole; 148. Air supply channel; 15. Air inlet grille; 16. Partition; 17. Air outlet net; 171. Give way. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] In the description of this application, it should be understood that the terms "length," "width," "thickness," "up," "down," "left," "right," "front," "back," "top," "bottom," "inside," "outside," "center," "vertical," "horizontal," "transverse," and "longitudinal" and the like, indicating positions or state relationships, are based on the positions or state relationships shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments, and are not intended to limit the devices, elements, or components indicated to having a specific position, or being constructed or operated in a specific position.

[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or state. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0028] In addition, the terms "first," "second," etc. are primarily used to distinguish different devices, elements, or components (the specific types and configurations of which may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; internal communication between two components; or mere surface contact. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in their functionality. For example, the term "including" used throughout the specification and claims is an open-ended term and should be interpreted as meaning "including but not limited to." "Substantially" means that those skilled in the art can solve the technical problem within a certain error range and achieve a substantial technical effect.

[0031] Please also see Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application provides a heater 100, which is used to blow warm air outward to achieve a heating effect. The heater 100 includes a shell 11, a hot air module 12, a cold air module 13 and a mixing module 14. The shell 11 is the main structure of the heater 100, which is used to install and accommodate other structural modules of the heater 100. As a specific example, in this embodiment, the shell 11 is roughly cylindrical. In other embodiments, the shell 11 can also be cubic, spherical or any irregular shape. The shell 11 is provided with an air inlet 111, an air outlet 112 and an inner cavity 113. The air inlet 111 and the air outlet 112 are both connected to the inner cavity 113. The air inlet 111 is the entrance for the external air flow to enter the interior of the shell 11, the air outlet 112 is the outlet for the air flow in the shell 11 to discharge from the shell 11, and the inner cavity 113 is a cavity defined by the shell 11, which is used to accommodate other structures of the heater 100.

[0032] The hot air module 12 is disposed within the inner cavity 113 and communicates with the air inlet 111. The hot air module 12 is configured to receive cold air from the air inlet 111 and heat it to produce hot air. When the hot air module 12 is operating, outside air enters the inner cavity 113 through the air inlet 111 and is heated by the hot air module 12 to form hot air.

[0033] The cold air module 13 is disposed within the inner cavity 113 and communicates with the air inlet 111. The cold air module 13 is configured to draw cold air from the air inlet 111 and output the cold air. When the cold air module 13 is operating, outside air enters the inner cavity 113 through the air inlet 111, forming cold air. It should be noted that the terms "cold air" and "hot air" described above are only used to indicate the difference in temperature between the airflow output by the cold air module 13 and the hot air module 12; that is, the temperature of the cold air output by the cold air module 13 is lower than the temperature of the hot air output by the hot air module 12.

[0034] The mixing module 14 is disposed within the inner cavity 113 and communicates with the air outlet 112. The mixing module 14 is also in communication with both the hot air module 12 and the cold air module 13. The mixing module 14 is configured to mix the hot air output from the hot air module 12 with the cold air output from the cold air module 13 to produce warm air, which is then blown out of the air outlet 112. When the mixing module 14 is operating, the hot air generated by the hot air module 12 and the cold air generated by the cold air module 13 mix in the mixing module 14 to produce warm air with a temperature between that of the cold air and that of the hot air. The warm air is then blown out of the air outlet 112 to provide warmth to the user. By controlling the volume of the cold and hot air, the temperature of the warm air can be controlled.

[0035] In the above-mentioned heater 100, when the heater 100 is operating normally, the hot air module 12 obtains outside air from the air inlet 111 to form hot air, and sends the formed hot air into the mixing module 14. The cold air module 13 obtains outside air from the air inlet 111 to form cold air, and sends the formed cold air into the mixing module 14. The cold air and hot air in the mixing module 14 are fully mixed to form warm air with a temperature between the cold air and the hot air. The warm air is blown out through the air outlet 112 so that the user can keep warm. The above-mentioned heater 100 can change the air volume of the cold air and the hot air in the mixing module 14 by controlling the output air volume of the hot air module 12 and the cold air module 13, thereby changing the temperature of the warm air output by the mixing module 14 to adjust the blowing temperature of the heater 100. The above-mentioned temperature control method has the advantages of a wide temperature control range and a fast temperature control rate, and can meet the diverse heating needs of users.

[0036] See also Figure 3In some embodiments, the hot air module 12 is provided with a hot air chamber 121 connected to the air inlet 111. The hot air chamber 121 is a cavity for the hot air module 12 to generate hot air. The cold air module 13 is provided with a cold air chamber 131 connected to the air inlet 111. The cold air chamber 131 is a cavity inside the cold air module 13 for accommodating cold air. The mixing module 14 is provided with a mixing chamber 142 connected to the air outlet 112. The mixing chamber 142 is a cavity for the intersection and mixing of hot air and cold air. The hot air chamber 121 and the cold air chamber 131 are both connected to the mixing chamber 142, and the hot air chamber 121 and the cold air chamber 131 are isolated from each other. Through the above configuration, the isolation of the hot air chamber 121 and the cold air chamber 131 can prevent the hot air and the cold air from exchanging heat prematurely during their respective generation processes, thereby ensuring that the hot air module 12 and the cold air module 13 can respectively generate hot air and cold air with ideal temperatures. It should be noted that the hot air chamber 121 , the cold air chamber 131 and the mixing chamber 142 are at least partial structures of the inner chamber 113 , and the three together constitute the inner chamber 113 as a whole.

[0037] In some embodiments, the housing 11 includes a first sub-shell 114, a second sub-shell 115, and a third sub-shell 116, which are sequentially connected and interconnected. The air inlet 111 is provided at the end of the first sub-shell 114 remote from the second sub-shell 115, and the air outlet 112 is provided at the end of the third sub-shell 116 remote from the second sub-shell 115. With this arrangement, when manufacturing the housing 11, the first sub-shell 114, the second sub-shell 115, and the third sub-shell 116 can be produced separately and assembled to form the housing 11. This significantly reduces the difficulty of manufacturing the entire housing 11. Furthermore, the split housing 11 facilitates handling and transportation.

[0038] In some embodiments, the cold air module 13 includes a first mounting bracket 132 and a first air suction member 134. The first mounting bracket 132 is connected to the shell 11, specifically to the inner side wall of the first sub-shell 114. The first air suction member 134 is arranged on the first mounting bracket and is located in the cold air cavity 131, and the air inlet end of the first air suction member 134 faces the air inlet 111. As a specific example, in this embodiment, the first air suction member 134 is an axial flow fan, and the air inlet end of the axial flow fan faces the air inlet 111 to suck the outside air into the cold air cavity 131 to form cold air. In other embodiments, the first air suction member 134 can also be any other type of air suction element such as an impeller, a turbofan, etc., and the specific type of the first air suction member 134 is not limited. Through the above arrangement, the first air suction member 134 provides air suction power for the cold air module 13 to suck cold air from the air inlet 111 into the cold air cavity 131, and transmit the cold air in the cold air cavity 131 backward.

[0039] In some embodiments, the hot air module 12 includes a heating element 122 and a second air suction element 123. The heating element 122 is arranged on the first mounting bracket 132 and is located in the hot air chamber 121. The heating element 122 is used to heat the air entering the hot air chamber 121 to form hot air. The air inlet end of the second air suction element 123 faces the air inlet 111, and the heating element 122 is located between the air inlet 111 and the second air suction element 123. As a specific example, in this embodiment, the heating element 122 is a PTC heater, which has a porous structure that allows air to pass through. In other embodiments, the heating element 122 can also be any heating element that allows air to pass through, such as an electric heating wire or an electric heating tube. There is no limitation on the type of the heating element 122. In addition, in this embodiment, the second air suction element 123 is a centrifugal wind wheel, the air inlet end of the centrifugal wind wheel faces the air inlet 111, so as to suck the outside air from the air inlet 111 into the hot air chamber 121 and form hot air. In other embodiments, the second suction member 123 may also be any other type of suction element, such as an axial fan or a turbofan, and the specific type of the second suction member 123 is not limited. Through the above configuration, the second suction member 123 provides suction power for the hot air module 12, so as to draw cold air from the air inlet 111 into the hot air chamber 121. The cold air in the hot air chamber 121 is heated to a higher temperature by the heating member 122, and the hot air is continuously transmitted backward under the drive of the second suction member 123.

[0040] Please continue reading Figure 3 、 Figure 4 and Figure 5 In some embodiments, the heater 100 further includes an air inlet grille 15 and a partition 16. The air inlet grille 15 is provided at the air inlet 111, and is used to prevent larger foreign objects from being sucked into the inner cavity 113. The partition 16 is provided on the first mounting bracket 132 and extends to the air inlet grille 15. The partition 16 surrounds the heating element 122 to separate the heating element 122 from the first suction element 134. As a specific example, in this embodiment, the partition 16 is roughly a rectangular frame, and its opposite ends are respectively connected to the opposite surfaces of the first mounting bracket 132 and the air inlet grille 15, and the heating element 122 is located in the center of the rectangular frame and surrounded by the rectangular frame. In other embodiments, the partition 16 can also be a circular frame, a trapezoidal frame or a frame of any other shape, without limitation. Through the above-mentioned setting, the partition 16 can separate the heating element 122 and the first suction element 134 to separate the hot air chamber 121 and the cold air chamber 131, so that the airflow sucked into the cold air chamber 131 by the first suction element 134 and the airflow sucked into the hot air chamber 121 by the second suction element 123 will not affect each other, so as to ensure that the cold air volume and the hot air volume can be adjusted independently.

[0041] In some embodiments, the number of the first air suction members 134 is two, and the two first air suction members 134 are respectively located on both sides of the partition 16. Through the above arrangement, the heating member 122 is roughly located at the center of the air inlet 111, and the two first air suction members 134 are respectively located on both sides of the heating member 122. Since the hot air passing through the heating member 122 is roughly surrounded by the cold air passing through the first air suction members 134, the heat of the hot air can be prevented from being transferred to the shell 11, thereby avoiding the safety hazard caused by the shell 11 being too high. In addition, the above arrangement makes the air flow entering the mixing chamber 142 contain two cold airs and one hot air, and the hot air is located between the two cold airs, so it is beneficial for the cold air and the hot air to be fully mixed in the mixing chamber 142 to achieve rapid temperature adjustment. In other embodiments, the number of the first air suction members 134 can also be any number such as one, three, or three, and the position of the first air suction member 134 can also be arbitrarily set, without limitation.

[0042] Please continue reading Figure 3 、 Figure 4 and Figure 5 In some embodiments, a first vent 133 is provided on the first mounting bracket 132, and the first vent 133 is a channel for the hot air in the hot air chamber 121 to pass through the first mounting bracket 132. The heating element 122 is arranged on a side of the first mounting bracket 132 close to the air inlet 111 and corresponds to the first vent 133. The hot air module 12 also includes an air guide 124, which is connected to a side of the first mounting bracket 132 away from the air inlet 111, and an end of the air guide 124 away from the first mounting bracket 132 extends into the second sub-shell 115. The air guide 124 is provided with an air guide channel 125, which is a channel defined by the air guide 124 and can be regarded as at least a partial structure of the hot air chamber 121. The air guide channel 125 connects the first vent 133 with the mixing chamber 142. Through the above-mentioned arrangement, the partition 16 and the air guide 124 are connected through the first vent 133. The partition 16 and the air guide 124 jointly define a hot air chamber 121. When the hot air module 12 is working, the second air suction member 123 draws the outside air into the hot air chamber 121 from the air inlet 111. Under the action of suction, the air passes through the heating member 122 and the first vent 133 in turn, and finally forms high-temperature hot air in the air guide channel 125. The air guide channel 125 is used to guide the high-temperature hot air so as to accurately deliver the high-temperature hot air to the mixing chamber 142 to mix with the cold air.

[0043] See also Figure 3 、 Figure 6 and Figure 7In some embodiments, the mixing module 14 includes a second mounting bracket 141. One side of the second mounting bracket 141 is connected to the inner sidewall of the housing 11, specifically to the inner sidewall of the second sub-housing 115. The other side of the second mounting bracket 141 extends toward the air inlet 111 and is separated from the inner sidewall of the housing 11. The second mounting bracket 141 and at least a portion of the structure of the outer shell define a mixing chamber 142. Specifically, the second mounting bracket 141, at least a portion of the structure of the second sub-housing 115, and the third sub-housing 116 together define the mixing chamber 142. Furthermore, the second mounting bracket 141, at least a portion of the structure of the first sub-housing 114 and the second sub-housing 115, the partition 16, and the air guide 124 together define the cold air chamber 131. A second vent 143 communicating with the mixing chamber 142 is provided on the side of the second mounting bracket 141 away from the housing 11. The second vent 143 is in communication with the hot air chamber 121. Through the above-mentioned setting, since the second ventilation port 143 is connected to the hot air chamber 121 (air guide channel 125), the hot air shell formed in the hot air chamber 121 enters the mixing chamber 142 through the second ventilation port 143. Since the mixing chamber 142 is connected to the air outlet 112, the hot air shell mixed in the mixing chamber 142 is blown out from the air outlet 112.

[0044] In some embodiments, the second mounting bracket 141 is provided with a plurality of ventilation holes 144, which connect the mixing chamber 142 with the cold air chamber 131. The ventilation holes 144 are also arranged opposite the first air suction member 134. Through the above arrangement, the ventilation holes 144 connect the cold air chamber 131 with the mixing chamber 142, and the cold air sucked into the cold air chamber 131 by the first air suction member 134 can enter the mixing chamber 142 through the ventilation holes 144 to mix with the hot air.

[0045] See also Figure 3 、 Figure 8 and Figure 9In some embodiments, the mixing module 14 further includes a third mounting bracket 145 and a plurality of air guide blades 146 disposed within the mixing chamber 142. The air guide blades 146 are connected between the outer side wall of the third mounting bracket 145 and the inner side wall of the shell 11. Specifically, the air guide blades 146 are connected to the inner side wall of the third sub-shell 116 and the outer side wall of the third mounting bracket 145. The plurality of air guide blades 146 surround the third mounting bracket 145 and are spaced apart from each other. The air guide blades 146 are tilted relative to the central axis of the shell 11. Two adjacent air guide blades 146, the third mounting bracket 145, and the third sub-shell 116 jointly define an air supply channel 148. Through the above arrangement, the strongly rotating warm airflow formed in the mixing chamber 142 smoothly transitions to a substantially straight airflow after passing through the air supply channel 148. The straight airflow is blown out through the air outlet 112, which can bring a better blowing experience to the user. Furthermore, since the mixing chamber 142 is located between the heating element 122 and the air outlet 112 , the heating element 122 is prevented from directly radiating heat to the air outlet 112 , thereby preventing the air outlet 112 from being overheated and causing safety hazards.

[0046] In some embodiments, the hot air module 12 further includes a driving member 126, which is disposed on a third mounting bracket 145, and the second suction member 123 is connected to the driving member 126, and the driving member 126 and the second suction member 123 are both located in the mixing chamber 142. The driving member 126 can be a motor or other component that can drive the second suction member 123 to rotate. The heater 100 further includes an air outlet net 17 disposed at the air outlet 112, and a clearance port 171 is provided on the air outlet net 17. One end of the third mounting bracket 145 extends to the air outlet net 17 and is located at the clearance port 171. The portion of the third mounting bracket 145 located at the clearance port 171 is provided with a plurality of heat dissipation holes 147. Through the above-mentioned setting, the driving member 126 drives the second suction member 123 located in the mixing chamber 142 to work, so as to suck the hot air generated in the hot air chamber 121 into the mixing chamber 142. Moreover, since the third mounting bracket 145 is provided with a heat dissipation hole 147, the heat generated by the driving member 126 located in the third mounting bracket 145 during operation can be discharged through the heat dissipation hole 147 to improve the service life of the driving member 126.

[0047] To sum up, this embodiment provides a heater 100, which uses a hot air module 12 to form hot air in the inner cavity 113, uses a cold air module 13 to form cold air in the inner cavity 113, and uses a mixing module 14 to fully mix the hot air and cold air to obtain warm air and blow it out. By controlling the air volume of cold air and hot air, precise temperature adjustment of the warm air can be achieved, which not only has rapid temperature adjustment but also a wide temperature adjustment range, and can meet the user's diverse heating needs.

[0048] In addition, since the mixing module 14 is arranged between the heating module and the air outlet 112, and the second air suction member 123 (centrifugal wind wheel) and the air guide blade 146 located in the mixing module 14 can expand the air duct, the heat radiation of the heating member 122 to the air outlet net 17 can be greatly reduced, so that the air outlet temperature and the temperature of the air outlet net 17 are basically the same, which can not only prevent the user from being burned by the wind, but also prevent the user from being burned by the air outlet net 17, and has good safety.

[0049] Secondly, since independent cold air modules 13 and hot air modules 12 are provided, and the pressurized air flow is mixed in the jet area of ​​the second air suction member 123 (centrifugal wind wheel), since the jet hot air flow will be highly turbulent and have strong rotation, after the cold air flow enters this area, there will be strong shear deformation between each other, and it will be quickly mixed, so that the cold air and hot air can be mixed more evenly. Through the above design, the superheated air flow of the hot air module 12 can be blown into the cold air for mixing, and the wind temperature can be adjusted to an appropriate temperature.

[0050] Finally, the strongly swirling airflow in the mixing chamber 142 is smoothly transitioned to a substantially straight airflow by the guide vanes. Meanwhile, the uniformly perforated air outlet net 17 further evenly cuts the straightened airflow, making the blowing airflow even straighter and smoother. With the above arrangement, the heater 100 can output temperature-adjustable, straight, smooth, and uniform warm air, greatly improving the user's heating experience.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0052] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. However, such modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the various embodiments of this application.

Claims

1. A fan heater, characterized in that: include: A shell body, provided with an air inlet, an air outlet and an inner cavity, wherein the air inlet and the air outlet are both connected to the inner cavity; A hot air module is disposed in the inner cavity and communicated with the air inlet, and is used to obtain cold air from the air inlet and heat it to output hot air; A cold air module is disposed in the inner cavity and is connected to the air inlet, and is used to obtain cold air from the air inlet and output cold air; A mixing module is arranged in the inner cavity and connected to the air outlet. The mixing module is also connected to the hot air module and the cold air module at the same time. The mixing module is used to mix the hot air output by the hot air module and the cold air output by the cold air module to obtain warm air, and blow the warm air out from the air outlet.

2. The air heater according to claim 1, characterized in that: The hot air module is provided with a hot air chamber connected to the air inlet, the cold air module is provided with a cold air chamber connected to the air inlet, and the mixing module is provided with a mixing chamber connected to the air outlet. The hot air chamber and the cold air chamber are both connected to the mixing chamber, and the hot air chamber and the cold air chamber are isolated from each other.

3. The air heater according to claim 2, characterized in that: The cold air module includes a first mounting bracket and a first air suction member, the first mounting bracket is connected to the shell, the first air suction member is arranged on the first mounting bracket and is located in the cold air cavity, and the air inlet end of the first air suction member faces the air inlet.

4. The air heater according to claim 3, characterized in that: The hot air module includes a heating element and a second air suction element. The heating element is arranged on the first mounting bracket and is located in the hot air cavity. The air inlet end of the second air suction element faces the air inlet. The heating element is located between the air inlet and the second air suction element.

5. The air heater according to claim 4, characterized in that: The heater also includes an air inlet grille and a partition, wherein the air inlet grille is arranged at the air inlet, the partition is arranged at the first mounting bracket and extends to the air inlet grille, and the partition surrounds the heating element to separate the heating element from the first air suction element.

6. The air heater according to claim 5, characterized in that: A first vent is provided on the first mounting bracket, and the heating element is arranged on a side of the first mounting bracket close to the air inlet and corresponds to the first vent; the hot air module also includes an air guide member, which is connected to a side of the first mounting bracket away from the air inlet, and the air guide member is provided with an air guide channel, which connects the first vent with the mixing chamber.

7. The air heater according to claim 2, characterized in that: The mixing module includes a second mounting bracket, one side of the second mounting bracket is connected to the inner wall of the shell, and the other side extends in a direction close to the air inlet and is separated from the inner wall of the shell; the second mounting bracket and at least part of the structure of the shell define a mixing chamber, and a second vent connected to the mixing chamber is provided on a side of the second mounting bracket away from the shell, and the second vent is connected to the hot air chamber.

8. The air heater according to claim 7, characterized in that: The second mounting bracket is provided with a plurality of ventilation holes, and the ventilation holes connect the mixing chamber with the cold air chamber.

9. The air heater according to claim 4, characterized in that: The mixing module also includes a third mounting bracket and a plurality of wind guide blades arranged in the mixing chamber, wherein the wind guide blades are connected between the outer wall of the third mounting bracket and the inner wall of the shell, and the plurality of wind guide blades surround the third mounting bracket and are spaced apart from each other.

10. The air heater according to claim 9, characterized in that: The hot air module also includes a driving member, which is arranged on the third mounting bracket, and the second air suction member is connected to the driving member; the heater also includes an air outlet net arranged at the air outlet, and a clearance port is provided on the air outlet net; one end of the third mounting bracket extends to the air outlet net and is located at the clearance port, and a portion of the third mounting bracket located at the clearance port is provided with a plurality of heat dissipation holes.

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