A fan heater

Abstract

A kind of fan heater, including the casing of bottom being equipped with air inlet and the peripheral wall of top being equipped with air outlet, the axial fan of generating from lower to upper wind being equipped in the casing interior, and the heater of heating wind, wherein, the outer edge between the air outlet end of the fan and the lower edge of the air outlet is equipped with first air baffle, the center between the air outlet end of the fan and the upper edge of the air outlet is equipped with second air baffle, the air guide angle of the second air baffle is less than the air guide angle of the first air baffle, the air guide angle is the angle between air baffle and horizontal plane, multiple shunt plates are equipped between the first air baffle and the second air baffle, and the multiple shunt plates are spaced apart with the axis of the fan as center.The setting of air baffle and air guide angle increases the pressure of hot air output by fan heater, is advantageous to accelerate the diffusion of hot air in surrounding air, the air outlet is away from the air inlet, is advantageous to improve heating efficiency, and shunt plate makes the hot air output more evenly around fan heater.

Description

Technical Field

[0001] This utility model relates to a heater, and more particularly to a heater that provides circumferential airflow and uses an axial fan to generate airflow. Background Technology

[0002] A space heater is a common heating device used in daily life. Based on the direction of airflow, it can be divided into directional airflow space heaters and omnidirectional airflow space heaters. Omnidirectional airflow space heaters are also called all-around airflow space heaters. Relatively speaking, because omnidirectional airflow space heaters have air outlets on their perimeter walls, they can output hot air in all directions, allowing users in different directions around the space heater to feel the warm air. However, this also results in a larger air outlet area, lower output hot air pressure, and slower diffusion of hot air in the surrounding air. Furthermore, omnidirectional airflow space heaters also suffer from uneven airflow.

[0003] This utility model addresses the aforementioned shortcomings of circumferential air outlet type heaters and proposes improvements. Utility Model Content

[0004] The purpose of this invention is to provide a heater that increases the pressure of the hot air output by the heater and improves the uniformity of airflow.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A space heater, comprising:

[0007] The casing has an air inlet at the bottom and an air outlet on the top perimeter wall;

[0008] The fan, an axial fan, is located inside the housing and generates upward airflow; and

[0009] Heater, used to heat air;

[0010] A first air guide plate is provided between the outer edge of the air outlet of the fan and the lower edge of the air outlet. A second air guide plate is provided between the center of the air outlet of the fan and the upper edge of the air outlet. The air guiding angle of the second air guide plate is smaller than that of the first air guide plate. The air guiding angle is the angle between the air guide plate and the horizontal plane. A plurality of diverter plates are provided between the first air guide plate and the second air guide plate. The plurality of diverter plates are spaced apart with the axis of the fan as the center.

[0011] The first and second air guide plates work together to guide the hot air toward the air outlet on the casing. The guide angles of the first and second air guide plates cause the hot air to be gradually compressed as it flows toward the air outlet, increasing the pressure and thus increasing the pressure of the hot air output by the heater.

[0012] Multiple diverter plates, combined with the first and second air guide plates, disperse the hot air in all directions as it flows toward the air outlet, thus making the hot air output from the heater more even around the perimeter.

[0013] In some embodiments, the air guide angle of the first air guide plate is greater than 60 degrees and less than 85 degrees.

[0014] In some embodiments, the difference between the guide angle of the first guide plate and the guide angle of the second guide plate is greater than 10 degrees and less than 40 degrees.

[0015] In some embodiments, the diverter plate is a straight plate.

[0016] In some embodiments, the included angle between adjacent splitters is less than 20 degrees.

[0017] In some embodiments, the air guiding surface of the second air guide plate is an inverted conical surface, the diverter plate is connected to the conical surface, the diverter plate is integrally formed with the second air guide plate, the diverter plate is a straight plate and is arranged perpendicular to the conical surface.

[0018] In some embodiments, the upper end of the diverter plate has an extension extending outward toward the outer side of the housing, the height of which is adapted to the height of the air outlet.

[0019] In some embodiments, a gap is left between the diverter plate and the first air guide plate.

[0020] In some embodiments, the air inlet is a through hole in the vertical direction.

[0021] In some embodiments, a second bracket is provided at the bottom center of the housing, the through hole is arranged around the second bracket, and the center line of the fan, the center line of the second bracket and the center line of the heater coincide.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The introduction of the first and second air guide plates, and the relative angles between them, increases the pressure of the hot air output by the heater, which helps to accelerate the diffusion of hot air in the surrounding air. The air outlet is far from the air inlet, which helps to improve heating efficiency. The combination of the diffuser plate with the first and second air guide plates allows the hot air to be dispersed in all directions as it flows towards the air outlet, resulting in more even distribution of hot air output from the heater. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a heater;

[0025] Figure 2 A schematic diagram showing the heater after some parts have been removed;

[0026] Figure 3 This is a bottom view of the second air guide plate;

[0027] Figure 4 This is a schematic diagram of the overall external appearance of the heater; Attached image description:

[0029] 1. Second air guide plate; 2. Diverter plate; 3. Air outlet; 4. First air guide plate; 5. Heater; 6. First bracket; 7. Fan; 8. Air inlet; 9. Second bracket; 10. Lower shell; 11. Upper shell; 12. Mounting column; 13. Extension; 14. Housing; A1. First air guide angle; A2. Second air guide angle; A3. Included angle. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Combination Figures 1-4 Some embodiments of the heater include: housing 14, fan 7, heater 5.

[0034] The bottom of the housing 14 is provided with an air inlet 8, and the top of the housing 14 is provided with an air outlet 3.

[0035] Fan 7 is an axial fan. Fan 7 is located inside the housing 14. The air inlet of fan 7 faces downward and the air outlet of fan 7 faces upward. When fan 7 is powered on, it generates an upward suction force. Under the action of this suction force, air in the environment enters from the air inlet 8 at the bottom of housing 14, generating an upward airflow.

[0036] Heater 5 is used to heat the air to form hot air. Heater 5 can be fixed at the air inlet end of fan 7 or at the air outlet end of fan 7, and both methods can heat the air.

[0037] The heater 5 can be constructed from conventional electric heating elements such as resistance wires or PTC heating elements. Specifically, the electric heating elements can be arranged around the air duct, so that air passing through the duct is heated by the surrounding electric heating elements, forming hot air. Alternatively, the electric heating elements can be placed in the air duct with air passage holes, through which air passes and is heated to form hot air. The heater 5 is a conventional component of a warm air blower, and its construction is a standard practice for those skilled in the art; therefore, it will not be described in detail in this embodiment.

[0038] A first air guide plate 4 is provided between the outer edge of the air outlet end of the fan 7 and the lower edge of the air outlet 3, and a second air guide plate 1 is provided between the center of the air outlet end of the fan 7 and the upper edge of the air outlet 3.

[0039] The angle between the first air guide plate 4 and the horizontal plane is called the first air guide angle A1 or the air guide angle of the first air guide plate 4.

[0040] The angle between the second air guide plate 1 and the horizontal plane is called the second air guide angle A2 or the air guide angle of the second air guide plate 1.

[0041] The second guide angle A2 is smaller than the first guide angle A1.

[0042] Multiple air dividers 2 are provided between the first air guide plate 4 and the second air guide plate 1, and the multiple air dividers 2 are spaced apart with the axis of the fan 7 as the center.

[0043] The working process of the above-mentioned heater is as follows:

[0044] When the fan 7 is powered on, it generates an upward suction force. Under the action of this suction force, the air in the environment enters from the air inlet 8 at the bottom of the casing 14, generating an upward airflow. The airflow is heated by the heater 5 to form hot air. Guided by the first air guide plate 4 and the second air guide plate 1, the hot air flows upward and outward to the air outlet 3 on the periphery of the casing 14. It then enters the environment from all sides of the heater through the air outlet 3, warming the ambient air.

[0045] In the above embodiments, the first air guide plate 4 and the second air guide plate 1 are combined to guide and compress the hot air.

[0046] Under the guidance of the first air guide plate 4 and the second air guide plate 1, hot air flows from the air outlet of the fan 2 to the air outlet 3 on the casing 14.

[0047] Under the compression action of the first air guide plate 4 and the second air guide plate 1, the pressure of the hot air gradually increases, eventually increasing the pressure of the hot air output from the heater. The magnitude of the compression action is related to the difference between the first air guide angle A1 and the second air guide angle A2. When a higher pressure of hot air is required, this difference can be designed to be larger.

[0048] Multiple diverter plates 2 are combined with the first air guide plate 4 and the second air guide plate 1, so that the hot air is dispersed in all directions as it flows toward the air outlet 3, thereby making the hot air output from the heater more uniform.

[0049] In the above embodiments, the introduction of the first air guide plate 4 and the second air guide plate 1, and the relative relationship of their guiding angles, increases the pressure of the hot air output by the heater, which is beneficial to accelerating the diffusion of hot air in the surrounding air. The combination of the diffuser plate 2 with the first air guide plate 4 and the second air guide plate 1 makes the hot air output by the heater more uniform around its perimeter. In addition, the air outlet 3 is located on the top peripheral wall of the casing 14, and the air inlet 8 is located at the bottom of the casing 14. The air outlet 3 is far from the air inlet 8, making it less likely for the hot air output from the air outlet 3 to diffuse to the air inlet 8, which is beneficial to improving heating efficiency. Overall, this makes the heat transfer management more scientific, reasonable, and efficient.

[0050] In one specific embodiment, the housing 14 adopts a cylindrical structure and is composed of a lower housing 10 and an upper housing 11. The air inlet 8 is formed on the lower housing 10, and the air outlet 3 is formed on the peripheral wall of the upper housing 11.

[0051] The top surface of the lower casing 10 is provided with a mounting post 12, and the fan 7 is fixed to the mounting post 12 by screws, thereby being supported inside the casing 14.

[0052] The top of the fan 7 is connected to the first bracket 6 by screws, and the heater 5 is snapped and fixed to the first bracket 6, thus being supported at the air outlet of the fan 7.

[0053] The lower end of the first air guide plate 4 is connected to the upper end of the first bracket 6, and the upper end of the first air guide plate 4 is connected to the inner wall of the upper shell 11, supporting the first air guide plate 4 between the outer edge of the air outlet of the fan 7 and the lower edge of the air outlet 3 on the housing 14.

[0054] The splitter plate 2 and the second air guide plate 1 are integrally formed. The lower edge of the outer end of the splitter plate 2 is connected to the upper edge of the outer end of the first air guide plate 4, supporting the second air guide plate 1 between the center of the air outlet of the fan 7 and the upper edge of the air outlet 3 on the housing 14.

[0055] It should be noted that the above specific embodiments are exemplary and should not be construed as limiting the present invention. The shape of the housing 14 can also be designed as other shapes, such as a polygonal prism. The fan 7, heater 5, first air guide plate 4, and second air guide plate 1 can also adopt other installation methods, for example, they can be connected to the housing 14 respectively.

[0056] In some preferred embodiments, the air guiding angle of the first air guide plate 4, i.e. the first air guiding angle A1, is set to be greater than 60 degrees and less than 85 degrees. For example, the first air guiding angle A1 is 70 degrees, 75 degrees, 80 degrees, etc.

[0057] In this preferred embodiment, the value of the first air guide angle A1 results in a larger distance between the air outlet 3 and the air inlet 8, thereby reducing the diffusion of hot air output from the air outlet 3 to the air inlet 8, which is beneficial to further improving the heating effect of the heater. Furthermore, it helps to improve the smoothness of hot air flow between the air outlet end of the fan 7 and the air outlet 3 on the casing 14.

[0058] In some preferred embodiments, the difference between the first guide angle A1 and the second guide angle A2 is greater than 10 degrees and less than 40 degrees, for example, the difference is 20 degrees, 25 degrees, 30 degrees, 35 degrees, etc.

[0059] The difference in the air guiding angle in this preferred embodiment facilitates the smooth flow of hot air from the air outlet 3 into the environment and increases the pressure of the hot air, thereby accelerating the diffusion of hot air in the ambient air and improving the heating effect.

[0060] In some preferred embodiments, the diverter 2 is a straight plate. In this case, all the diverter plates 2 are arranged radially, such as... Figure 3 As shown.

[0061] In other embodiments, the diverter plate 2 is an arc-shaped plate, and the bending direction of the arc-shaped plate is the same as the rotation direction of the fan blades.

[0062] The curved design of the splitter plate 2 causes turbulence in the hot air, reducing the smoothness of the hot air output. In contrast, the straight design of the splitter plate 2 prevents turbulence in the hot air as it passes through, which facilitates smoother hot air output.

[0063] In some preferred embodiments, the included angle A3 between adjacent diverter plates 2 is less than 20 degrees, for example, the included angle A3 is 18 degrees, 12 degrees, 10 degrees, etc.

[0064] Within the included angle A3 range, hot air is more easily and evenly output from all 360 degrees around the heater. Within this range, the number of diffuser plates 2 is no less than 18. The larger the included angle A3, the fewer the number of diffuser plates 2, resulting in higher smoothness of hot air output but lower uniformity. For example, when the included angle A3 between adjacent diffuser plates 2 is 18 degrees, the number of diffuser plates 2 is 20; when the included angle A3 between adjacent diffuser plates 2 is 12 degrees, the number of diffuser plates 2 is 30, the smoothness of hot air output decreases, and the uniformity increases; when the included angle A3 between adjacent diffuser plates 2 is 10 degrees, the number of diffuser plates 2 is 36, the smoothness of hot air output further decreases, and the uniformity further increases.

[0065] In some preferred embodiments, the lower surface of the second air guide plate 1, i.e. the surface facing the first air guide plate 4, is an inverted conical surface. The diverter plate 2 is connected to this conical surface and is integrally formed with the second air guide plate 1. The diverter plate 2 is a straight plate and is arranged perpendicular to the conical surface.

[0066] In this preferred embodiment, there is only one second air guide plate 1, and the diverter plate 2 and the second air guide plate 1 are an integral structure, which reduces the number of parts, simplifies the overall assembly steps of the heater, and helps to reduce product production costs.

[0067] In some preferred embodiments, the diverter plate 2 and the second air guide plate 1 are integrally formed, and there is a gap between the diverter plate 2 and the first air guide plate 4. The upper end of the diverter plate 2 extends outward to the outer side of the housing 14 to form an extension 13, and the height of the extension 13 is adapted to the height of the air outlet 3 on the housing 14.

[0068] In this preferred embodiment, the gap between the outer edge of the diverter plate 2 and the first air guide plate 4 increases the cross-section of the air duct between the air outlet end of the fan 7 and the air outlet 3 on the housing 14, resulting in better airflow smoothness. The upper end of the diverter plate 2 is provided with an extension 13, and the height of the extension 13 is adapted to the height of the air outlet 3 on the housing 14, so that all the hot air entering the air outlet 3 can be diverted by the extension 13, further improving the uniformity of the airflow. The combination of these two features improves both smoothness and uniformity.

[0069] In some preferred embodiments, the air inlet 8 is a through hole in the vertical direction, and a second bracket 9 is provided at the bottom center of the housing 14. The through hole is arranged around the second bracket 9, and the center line of the fan 7, the center line of the second bracket 9 and the center line of the heater 5 coincide.

[0070] In this preferred embodiment, the air inlet 8 is positioned so that the air intake direction is perpendicular to the air outlet direction, further reducing the amount of hot air diffusing from the air outlet 3 to the air inlet 8. The second bracket 9 can support the casing 14 away from the ground, reducing the amount of ground dust drawn into the air inlet 8. The combination of these two features reduces the backflow of hot air to the heater, thereby further improving the heating effect and preventing the stirring up of ground dust.

[0071] The present invention has been described in detail above through specific embodiments. These detailed descriptions are only intended to help those skilled in the art understand the content of the present invention and should not be construed as limiting the scope of protection of the present invention. Various modifications and equivalent transformations made by those skilled in the art to the above solutions under the concept of the present invention should be included within the scope of protection of the present invention.

Claims

1. A space heater, characterized in that, include: The casing has an air inlet at the bottom and an air outlet on the top perimeter wall; The fan, an axial fan, is located inside the housing and generates airflow from bottom to top; as well as Heater, used to heat air; A first air guide plate is provided between the outer edge of the air outlet of the fan and the lower edge of the air outlet. A second air guide plate is provided between the center of the air outlet of the fan and the upper edge of the air outlet. The air guiding angle of the second air guide plate is smaller than that of the first air guide plate. The air guiding angle is the angle between the air guide plate and the horizontal plane. A plurality of diverter plates are provided between the first air guide plate and the second air guide plate. The plurality of diverter plates are spaced apart with the axis of the fan as the center.

2. The heater according to claim 1, characterized in that: The air guide angle of the first air guide plate is greater than 60 degrees and less than 85 degrees.

3. The heater according to claim 1, characterized in that: The difference between the guide angle of the first guide plate and the guide angle of the second guide plate is greater than 10 degrees and less than 40 degrees.

4. The heater according to claim 1, characterized in that: The diverter plate is a straight plate.

5. The heater according to claim 1, characterized in that: The included angle between adjacent manifolds is less than 20 degrees.

6. The heater according to claim 1, characterized in that: The air guiding surface of the second air guide plate is an inverted conical surface. The diverter plate is connected to the conical surface and is integrally formed with the second air guide plate. The diverter plate is a straight plate and is set perpendicular to the conical surface.

7. The warm air blower according to claim 6, characterized in that: The upper end of the diverter plate has an extension that extends outward toward the outer side of the housing, and the height of the extension is adapted to the height of the air outlet.

8. The warm air blower according to claim 6, characterized in that: There is a gap between the diverter plate and the first air guide plate.

9. The heater according to claim 1, characterized in that: The air inlet is a through hole running vertically.

10. The heater according to claim 9, characterized in that: The bottom center of the housing is provided with a second bracket, the through hole is arranged around the second bracket, and the center line of the fan, the center line of the second bracket and the center line of the heater coincide.

Images