Air heating heater

Abstract

The embodiment of the utility model discloses an air heating heater. According to one specific implementation mode, the heater comprises a box body, an air outlet and an air inlet are formed in the box body, an air inlet channel is formed in the box body, and one end of the air inlet channel is communicated with the air inlet; the fan device is mounted in the box body; the fan cover wraps the periphery of the fan device, a fan air inlet is formed in an inlet of the fan device, and the fan air inlet communicates with the other end of the air inlet channel; and the shielding piece is arranged in the opposite direction of the fan air inlet, a preset distance exists between the shielding piece and the fan air inlet, and the shielding piece is used for guiding air in the air inlet channel into the fan air inlet. The implementation mode is related to the movable heater technology, the shielding piece used for guiding the air flow direction is arranged at the air inlet of the fan, the negative pressure at the air inlet can be reduced, and foreign matter suction can be reduced.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the field of mobile heater, in particular to a wind heater. BACKGROUND

[0002] The mobile heater on the market usually includes one or more heating bodies and one or more fan assemblies. The fan assembly sucks the cold air in the room into the air duct and blows it through the heating body, so that the cold air is heated. The finally heated air is blown to the room to mix with the indoor air.

[0003] However, the inventor found that there is usually a large negative pressure at the air inlet of such a mobile heater. This easily causes small particles such as hair to be sucked into the air duct and entangled on the heating body, thereby producing odor and blocking the air duct.

[0004] The above information disclosed in the background section is only for the purpose of enhancing the understanding of the background of the present inventive concept, and therefore, it can include information that does not form the prior art known to those of ordinary skill in the art in the country. SUMMARY

[0005] The summary section of the present disclosure is used to introduce the concepts in a brief manner, which will be described in detail in the specific embodiments section. The summary section of the present disclosure is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to be used to limit the scope of the claimed technical solutions. Some embodiments of the present disclosure provide a wind heater to solve one or more of the technical problems mentioned in the background section.

[0006] Some embodiments of the present disclosure provide a wind heater, comprising: a box body, an air outlet and an air inlet are formed on the box body, and an air inlet channel is formed in the box body, wherein one end of the air inlet channel communicates with the air inlet; a fan device is installed in the box body; a fan cover is wrapped around the outer periphery of the fan device, and a fan air inlet is formed at the inlet of the fan device, wherein the fan air inlet communicates with the other end of the air inlet channel; a shielding piece is arranged opposite the fan air inlet and has a predetermined distance from the fan air inlet, and the shielding piece is used to guide the gas in the air inlet channel to enter the fan air inlet.

[0007] In some embodiments, the fan cover cooperates with the box body to form an air inlet channel and an air outlet channel in the box body, wherein one end of the air outlet channel communicates with the fan device, and the other end communicates with the air outlet; the air inlet is arranged on the side surface of the box body, and there is an included angle between the vertical line of the plane where the fan air inlet is located and the vertical line of the box surface where the air inlet is located.

[0008] In some embodiments, the fan device is mounted on the bottom surface of the cabinet, and the fan air inlet is located above the fan device; and the top surface of the cabinet is provided with a shielding piece at a position corresponding to the fan air inlet.

[0009] In some embodiments, the fan device is mounted on the top surface of the cabinet, and the fan air inlet is located below the fan device; and the bottom surface of the cabinet is provided with a shielding piece at a position corresponding to the fan air inlet.

[0010] In some embodiments, the fan cover is a cylindrical structure with both ends open, and is horizontally arranged in the cabinet, and the fan device is mounted in the interior of the fan cover; one end of the fan cover serves as the fan air inlet, and the other end of the fan cover is in communication with the air outlet; the plane where the fan air inlet is located is parallel to the target cabinet surface where one of the air inlets is located, and the orthogonal projection of the fan air inlet onto the target cabinet surface does not coincide with the air inlet on the target cabinet surface; the target cabinet surface is provided with a shielding piece at a position corresponding to the fan air inlet.

[0011] In some embodiments, the total air inlet area of the air inlets is at least 1.5 times the total air inlet area of the fan air inlet, and the area of the fan air inlet is not less than 300 square millimeters, wherein the shape of the fan air inlet includes at least one of the following: circular, square, polygonal.

[0012] In some embodiments, the area of the shielding piece is greater than the area of the fan air inlet, and the distance between the shielding piece and the fan air inlet is not less than 5 millimeters.

[0013] In some embodiments, the minimum distance between the air inlets and the mounting surface is not less than 10 millimeters.

[0014] In some embodiments, the cabinet includes an upper cover plate and a lower cabinet, and the upper cover plate and the lower cabinet are detachably connected; one side surface of the lower cabinet is provided with an air outlet, and the other side surfaces are provided with air inlets.

[0015] In some embodiments, the fan heater further includes a heating body mounted in the cabinet at a position corresponding to the air outlet; and the bottom surface of the cabinet is further provided with a water leakage hole for discharging liquid entering the cabinet through the air inlets.

[0016] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the fan heater of some embodiments of the present disclosure can reduce the suction of foreign matters such as particles and hair into the heater, thereby reducing the cleaning frequency of the heater and facilitating the improvement of the service life of the heater.

[0017] Specifically, the air heater disclosed in the present invention is provided with a fan cover in the box. The fan cover is wrapped around the outer periphery of the fan device, and a fan air inlet is provided at the entrance of the fan device. In this way, the inhaled air can only enter the fan device through the fan air inlet. In addition, an air inlet channel is formed inside the box. One end of the air inlet channel is connected to the air inlet provided on the box, and the other end is connected to the fan air inlet. And a shielding member is also provided opposite the fan air inlet at a preset distance from the fan air inlet. The shielding member can guide the gas in the air inlet channel to enter the fan air inlet. In this way, the flow direction of the gas inside the heater can be restricted by the air inlet channel and the shielding member.

[0018] Furthermore, the shielding member allows for a certain angle difference between the air inlet on the housing and the air inlet of the fan device, rather than them being directly opposite each other. This creates a flow duct at the air inlet of the fan device, effectively reducing the negative pressure at the air inlet and thereby effectively reducing the amount of foreign matter drawn in. Furthermore, because there is a certain angle difference between the air inlet and the fan inlet, the restriction of the duct effectively prevents or reduces the chances of foreign matter being drawn into the fan device. This reduces the chances of foreign matter clogging the air duct and generating odors, reduces the frequency of cleaning the heater, and helps extend the heater's service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0020] Figure 1 is a front view of some embodiments of the air heater disclosed herein;

[0021] Figure 2 yes Figure 1 A rear view of some embodiments of the illustrated air heater;

[0022] Figure 3 is a schematic diagram of the interior of some embodiments of the air-heating heater disclosed herein;

[0023] Figure 4 yes Figure 3 Cross-sectional views of some embodiments of the illustrated air heater;

[0024] Figure 5 are cross-sectional views of other embodiments of the air heater disclosed herein;

[0025] Figure 6 1 is an internal schematic diagram of some further embodiments of the air heater disclosed herein;

[0026] Figure 7 is Figure 6 Cross-sectional view of some embodiments of the wind heater. DETAILED DESCRIPTION

[0027] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings of the present disclosure are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure.

[0028] It should also be noted that, for ease of description, only parts related to the utility model are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0029] It should be noted that the concepts of “first”, “second”, etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0030] It should be noted that the adjectives “one”, “multiple” mentioned in the present disclosure are illustrative and not limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as “one or more”.

[0031] The names of the messages or information exchanged between the devices in the embodiments of the present disclosure are only for illustrative purposes and are not used to limit the scope of the messages or information.

[0032] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0033] The reference signs in the drawings of the specification include: 1 is the upper cover plate; 11 is the shielding piece; 2 is the box assembly; 21 is the air outlet; 22 is the lower box; 221 is the first air inlet; 222 is the second air inlet; 223 is the third air inlet; 224 is the water leakage hole; 225 is the shielding piece; 23 is the fixing frame; 24 is the heating body; 25 is the fan cover; 251 is the fan air inlet; 26 is the fan assembly; 27 is the motor assembly; 28 is the air outlet channel; Φ1 is the diameter of the fan air inlet; H1 is the distance between the fan air inlet and the shielding piece; H2 is the minimum distance between the air inlet and the mounting surface; α is the included angle between the center line of the fan air inlet and the center line of the air inlet; the arrow is the flow direction of the wind.

[0034] Figures 1 to 3Structural diagrams of some embodiments of the air-warming heater of the present disclosure are shown. The air-warming heater can include a cabinet (1, 2), a fan device (26, 27), a fan cover 25, and a shielding piece 11 (or 225). Here, the cabinet can be provided with an air outlet 21 and air inlets (such as 221, 222, 223). An air inlet channel can be formed in the cabinet. The fan device can be installed in the cabinet. The fan cover 25 can be wrapped around the outer periphery of the fan device, and the fan cover 25 can be provided with a fan air inlet 251 at the inlet of the fan device. In combination Figure 3 and 4 It can be seen that one end of the air inlet channel can be in communication with the air inlet, and the other end can be in communication with the fan air inlet 251. In this way, through the air inlet channel, external gas can be introduced from the air inlet provided on the cabinet to the fan air inlet 251, thereby entering the fan device.

[0035] Further, to solve the problem of air duct blockage and odor caused by the suction of foreign matter into the heater due to the large negative pressure at the air inlet in the prior art, in the present embodiment, a shielding piece 11 can be further provided in the cabinet. The shielding piece 11 can be provided opposite the fan air inlet 251, and a predetermined distance can exist between the shielding piece 11 and the fan air inlet 251. The predetermined distance can be set according to actual needs. Here, opposite is usually opposite the fan air inlet and away from the fan device, that is, in front of the fan air inlet. The shielding piece 11 here can be used to guide the gas in the air inlet channel to enter the fan air inlet 251. In this way, the shielding piece and the air inlet channel can limit the flow direction of the gas entering the interior of the heater.

[0036] That is, under the action of the shielding piece, a certain angle difference can exist between the air inlet on the cabinet and the air inlet of the fan device, rather than being directly opposite. In this way, by forming a flow turning air duct at the air inlet of the fan device, the negative pressure at the air inlet can be effectively reduced, thereby effectively reducing the amount of foreign matter sucked in. And because a certain angle difference exists between the air inlet and the fan air inlet, under the limiting action of the air duct, the suction of foreign matter into the fan device can be effectively avoided or reduced. Thus, the blockage of the air duct by foreign matter, the generation of odor, and the like can be reduced, the cleaning frequency of the heater can be reduced, and the service life of the heater can be improved.

[0037] It should be noted that in order to realize the heating function of the heater, the air heating heater of the present disclosure usually further comprises a heating body 24. In order to improve the heating effect, the heating body 24 can be installed at the position corresponding to the air outlet 21 in the box body. In this way, the heated gas can be directly blown out through the air outlet, thereby reducing heat loss. It can be understood that the number and layout of various components in the air heating heater of the present disclosure, such as the air outlet, the air inlet, the fan device, the heating body, etc., can be set according to actual needs. As an example, the heating body 24 can be installed at the air outlet 21 through the fixing frame 23, and can be arranged along the length direction of the air outlet 21. The number of heating bodies can be determined according to the length of the air outlet and the length of the heating body.

[0038] Further, in order to simplify the structure, the above-mentioned box body can be a square box body, comprising an upper cover plate 1 and a lower box body 22 (i.e. a box body assembly 2). Here, in order to facilitate maintenance and repair, the upper cover plate 1 and the lower box body 22 can adopt a detachable connection structure. Here, at least one air outlet and at least one air inlet can be provided on the lower box body 22. Two fan devices can be provided in the box body. Among them, the fan device can comprise a fan assembly 26 and a motor assembly 27.

[0039] In some embodiments, the fan cover 25 can cooperate with the box body to form an air inlet channel and an air outlet channel 28 in the box body. Among them, one end of the air outlet channel 28 can communicate with the fan device, and the other end can communicate with the air outlet 21. Here, the heating body 24 can be installed in the air outlet channel 28 for heating the passing gas. In this way, through the air outlet channel 28, the gas flowing into the fan device can be guided to the heating body 24, and after being heated, it flows out from the air outlet 21, thereby realizing the air heating function. Through the air inlet channel and the air outlet channel, the flow direction of the gas in the heater can be limited, such as Figure 4 the flow direction shown by the arrow in the middle.

[0040] In some application scenarios, in order to further solve the above technical problems, the air heating heater of the present disclosure can be provided with an air inlet on the side of the box body. At the same time, in order to effectively reduce the negative pressure of the air inlet, there can be an included angle α between the vertical line (center line) of the plane where the fan air inlet is located and the vertical line of the plane of the box body where the air inlet is located. Preferably, the included angle α can be not less than 30°, such as 45°≤α≤135°.

[0041] It can be understood that while solving the above problems, in order to facilitate production and installation, the fan air inlet 251 can be arranged in the target direction. The target direction here is usually perpendicular to the ground direction, i.e. vertically arranged. At this time, the fan device can adopt a centrifugal fan. In this case, as an example, the fan device can adopt a centrifugal fan with a Figure 4The installation structure shown is installed on the bottom surface of the cabinet. That is, the motor assembly 27 can be installed on the bottom surface of the cabinet (lower cabinet 22), and the fan assembly 26 is fixed on the motor assembly 27. At this time, the fan air inlet 251 can be located above the fan device. Here, above can be directly above or obliquely above. In addition, the top surface of the cabinet (the inner side of the upper cover plate 1) is provided with a shielding piece 11 at the position corresponding to the fan air inlet.

[0042] Alternatively, the fan device can also adopt the installation structure shown in Figure 5 The installation structure shown is installed on the top surface of the cabinet. That is, the motor assembly 27 can be installed on the top surface of the cabinet (upper cover plate 1), and the fan assembly 26 is fixed on the motor assembly 27. At this time, the fan air inlet 251 can be located below the fan device. In this case, the bottom surface of the cabinet (lower cabinet 22) can be provided with a shielding piece 225 at the position corresponding to the fan air inlet 251.

[0043] In some application scenarios, the fan device can also adopt the installation structure shown in Figure 6 and 7 Here, the fan cover 25 can be a cylindrical structure with both ends open and horizontally arranged inside the cabinet. One end of the fan cover 25 can be in communication with the air outlet 21 to form an air outlet channel 28. The other end of the fan cover 25 (i.e. the end away from the air outlet 21) can be open and can serve as the fan air inlet 251. At this time, the fan device can be installed inside the fan cover 25. Here, the fan device can adopt an axial flow fan.

[0044] As shown in Figure 7 , the plane in which the fan air inlet is located is parallel to the target cabinet surface in which one of the air inlets (such as the second air inlet 222) is located. That is, the fan air inlet 251 is parallel to one cabinet surface of the cabinet. In this case, in order to reduce the negative pressure of the air inlet on the target cabinet surface, the orthogonal projection of the fan air inlet onto the target cabinet surface is usually not coincident with the air inlet on the target cabinet surface. As shown in Figure 6 , the second air inlet 222 is arranged in the middle region of the cabinet surface, and the fan air inlet can be arranged on both sides of the second air inlet. In this way, the gas flowing from the second air inlet 222 needs to be diverted to enter the fan air inlet 251. At the same time, the target cabinet surface (such as the cabinet surface in which the second air inlet 222 is located) can be provided with a shielding piece 225 at the position corresponding to the fan air inlet.

[0045] It should be noted that the existing movable heater, in order to reduce the risk of inhaling foreign matter such as hair, usually adopts a cross-flow fan. This structure form, the head loss is large, the efficiency is low. The air in the room often needs a long time to be uniformly heated. To solve one problem, in the embodiment of the present disclosure, the total air inlet area (S2) of the air inlet is usually greater than the total air inlet area (S1) of the fan air inlet. Preferably, the total air inlet area of the air inlet can be at least 1.5 times the total air inlet area of the fan air inlet. As an example, the following relationship 1.5S1≤S2≤10S1 can be used between the two.

[0046] Here, the shape of the fan air inlet can include at least one of the following: circular, square, polygon. In addition, the area of the fan air inlet can be not less than 300 square millimeters. For example, when the fan air inlet is circular, its diameter Φ1 can be not less than 20 millimeters. As an example, 20 millimeters≤Φ1≤300 millimeters.

[0047] In this case, the air outlet 21 can be provided on one side of the cabinet (such as the cabinet 22). And the air inlets, i.e. the first air inlet 221, the second air inlet 222 and the third air inlet 223, are respectively provided on the other sides of the cabinet (such as the cabinet 22). Here, the shape of the air inlet can include at least one of the following: vertical bar grid, honeycomb grid, mesh hole lamp form. It can be understood that, in order to prevent large-particle foreign matter from entering the inside of the heater, the air inlet here can adopt a microporous structure.

[0048] It should be noted that, while blocking the air from entering the fan device, in order to ensure the working efficiency of the heater, the distance H1 between the above-mentioned fan air inlet 251 and the shielding piece 11 (225) is usually not less than 5 millimeters. Preferably, 5 millimeters≤H1≤50 millimeters. And the area of the shielding piece can be usually greater than the area of the fan air inlet.

[0049] In addition, in the existing movable heater, the height of the air inlet from the ground is also increased to avoid the risk of inhaling foreign matter such as hair. Due to the high height of the air inlet from the ground, this structure cannot effectively exchange the air on the ground in the room, and the phenomenon of hot head and cold feet often occurs. To solve this problem, in the embodiment of the present disclosure, the minimum distance H2 between the air inlet of the heater and the installation surface can be not less than 10 millimeters. The minimum distance here can be the distance between the lowermost end of the air inlet and the installation surface, or the distance between the height center of the air inlet and the installation surface. As an example, 10 millimeters≤H2≤300 millimeters. The installation surface here can be a working surface for placing the air heater, which can include the ground. In some embodiments, in order to facilitate the use of the user, a support for supporting the cabinet can also be installed on the lower cabinet 22. The support can adopt a foldable storage structure.

[0050] Further, as can be seen from the figures, the bottom surface of the box (lower box 22) can also be provided with water leakage holes 224, which can be located at the lowest point of the box. The number of water leakage holes 224 is also not limited. In this way, the water entering the inside of the box through the air inlet can flow out through the water leakage holes 224.

[0051] As can be seen from the above description, the air heating system of the present disclosure can set the air inlet on the box around the fan by setting a shielding piece at the air inlet of the fan and by the design of the air duct, while increasing the air inlet area. In this way, not only can the negative pressure of the air inlet be reduced to prevent hair and dust from being sucked into the air duct, but the loss of the air head can also be reduced, and the heating efficiency can be improved.

[0052] The above description is only some of the preferred embodiments of the present disclosure and an explanation of the technical principles applied. Those skilled in the art should understand that the utility model range involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above utility model concept. For example, the above features and the technical features disclosed in the embodiments of the present disclosure (but not limited to) with similar functions are replaced with each other to form a technical solution.

Claims

1. A fan heater, characterised in that, The application relates to a wind-warming heater. The wind-warming heater comprises a box body, a fan device, a fan cover and a shielding piece. The box body is provided with an air outlet and an air inlet, and an air inlet channel is formed in the box body. The fan device is installed in the box body. The fan cover is wrapped around the outer periphery of the fan device and is provided with a fan air inlet at the inlet of the fan device.

2. The fan-on heater of claim 1, wherein, The shielding piece is arranged opposite the fan air inlet and is provided with a preset distance between the fan air inlet. The fan cover and the box body cooperate to form an air inlet channel and an air outlet channel in the box body.

3. The fan-on heater of claim 2, wherein, One end of the air outlet channel is communicated with the fan device, and the other end is communicated with the air outlet. The air inlet is arranged on the side surface of the box body.

4. The fan-on heater of claim 2, wherein, The vertical line of the plane where the fan air inlet is located and the vertical line of the box surface where the air inlet is located form an included angle. The fan device is installed on the bottom surface of the box body, and the fan air inlet is located above the fan device.

5. The fan-on heating apparatus according to claim 1, wherein The top surface of the box body is provided with the shielding piece at the position corresponding to the fan air inlet. The fan device is installed on the top surface of the box body, and the fan air inlet is located below the fan device. The bottom surface of the box body is provided with the shielding piece at the position corresponding to the fan air inlet. The fan cover is a cylindrical structure with two open ends and is arranged horizontally in the box body.

6. The fan-on heating apparatus according to claim 1, wherein One end of the fan cover serves as the fan air inlet, and the other end of the fan cover is communicated with the air outlet.

7. The fan-on heating apparatus according to claim 1, wherein The plane where the fan air inlet is located is parallel to the target box surface where one of the air inlets is located.

8. The fan-on heating apparatus according to claim 1, wherein The target box surface is provided with the shielding piece at the position corresponding to the fan air inlet.

9. The fan-on heating apparatus according to claim 1, wherein The total air inlet area of the air inlets is at least 1.5 times the total air inlet area of the fan air inlet. The area of the fan air inlet is not less than 300 square millimeters.

10. A fan heater as claimed in any one of claims 1 to 9, wherein The shape of the fan air inlet includes at least one of the following: circular, square, polygon. The area of the shielding piece is greater than the area of the fan air inlet. The minimum distance between the air inlets and the mounting surface is not less than 10 millimeters. The box body comprises an upper cover plate and a lower box body. One side surface of the lower box body is provided with the air outlet, and the other side surfaces are provided with the air inlets. The wind-warming heater further comprises a heating body installed in the box body at the position corresponding to the air outlet. The bottom surface of the box body is further provided with a water leakage hole for discharging liquid entering the box body through the air inlets.

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