Gas flow guide device and fan heater

Abstract

The utility model discloses a gas guiding device and a fan heater, both comprising: an electric appliance main body, in which a gas chamber is arranged, the electric appliance main body is provided with a gas inlet and a gas outlet which are communicated with the gas chamber, and the gas outlet is distributed in the middle or the upper part of the electric appliance main body around the circumferential direction of the electric appliance main body; the heating assembly is arranged in the gas chamber; the fan assembly is arranged on the electric appliance main body and is used for driving external airflow to sequentially pass through the air inlet, the heating assembly and the air outlet; and the annular air guide assembly is arranged between the output end of the fan assembly and the exhaust port and used for driving the air flow to be obliquely and downwards output towards all positions of the exhaust port. According to the air flow guiding device and the fan heater of the structure, air is obliquely and downwards discharged in the circumferential direction of the electric appliance body, hot air flow can rise after being blown to the low position so as to facilitate rapid heating of a user, and the heat exchange efficiency of the hot air flow and indoor air is also improved.

Description

Technical Field

[0001] The utility model relates to a gas flow guiding device and a warm air blower. Background Art

[0002] At present, the air outlet of general heat exchange equipment (such as heaters) can only blow in a certain direction, and the efficiency of heat exchange with indoor air is low, which is not conducive to rapid cooling or heating. For heaters, the air outlet direction of the heater is horizontal, and the hot air has a tendency to flow upward, resulting in a lower temperature in the space close to the ground, and the user's feet cannot be heated in time, affecting the user's experience. For this reason, in related technologies, it is usually necessary to use a rotating bracket to adjust the pitch angle of the heater, which complicates the structure of the heater and covers a smaller area, which is not conducive to the heat dissipation. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one of the purposes of the utility model is to provide a device that can discharge air in a circumferentially inclined downward direction to facilitate users to quickly heat up and improve heat exchange efficiency; the second purpose is to provide a heater with the above gas guide device.

[0004] According to a first aspect of the utility model, a gas flow guide device includes: an electrical main body, in which a gas chamber is provided, the electrical main body is provided with an air inlet and an exhaust port connected to the gas chamber, and the exhaust port is distributed around the circumference of the electrical main body in the middle or upper part of the electrical main body; a heating component, arranged in the gas chamber; a fan component, arranged in the electrical main body, and used to drive external airflow to pass through the air inlet, the heating component and the exhaust port in sequence; an annular air guide component, arranged between the output end of the fan component and the exhaust port, and used to drive the airflow to be output obliquely downward toward various positions of the exhaust port.

[0005] The gas flow guiding device according to the embodiment of the utility model has at least the following beneficial effects:

[0006] The gas guide device of the above structure utilizes a fan assembly to drive external air flow to enter from the air inlet and then pass through the heating assembly. After the gas is heated, it passes through the annular air guide assembly, and under the guidance of the annular air guide assembly, an air flow is formed that blows obliquely downward toward various positions of the exhaust port, thereby achieving an oblique downward air outlet in the circumferential direction of the electrical body. After the hot air flow is blown to a low place, it can rise to facilitate the user to quickly heat up, and also improves the heat exchange efficiency with the indoor air.

[0007] In some embodiments of the utility model, the annular air guide assembly includes a first annular guide plate and a second annular guide plate spaced apart in an upper and lower manner, the inner peripheral edges of the first annular guide plate and the second annular guide plate are inclined downward toward the outer peripheral edges, the outer peripheral edge of the first annular guide plate is located at the upper edge of the exhaust port, and the outer peripheral edge of the second annular guide plate is located at the lower edge of the exhaust port.

[0008] In some embodiments of the utility model, the inner wall of the gas chamber is installed with an annular baffle located below the second annular guide plate, the fan assembly includes a motor and an impeller connected to the output shaft of the motor, the impeller is located between the annular baffle and the first annular guide plate, the input end of the impeller faces the middle through hole of the annular baffle, and the output end of the impeller faces the area between the first annular guide plate and the second annular guide plate.

[0009] In some embodiments of the utility model, the output shaft of the motor is arranged in a vertical direction, and the impeller includes a first arc-shaped wall panel and a second arc-shaped wall panel which are arranged around the circumference of the output shaft of the motor and are in the shape of a trumpet with a smaller bottom and a larger top. The second arc-shaped wall panel is spaced apart at the outer periphery of the first arc-shaped wall panel, and the second arc-shaped wall panel is connected to the first arc-shaped wall panel through a plurality of spaced-apart drive blades. A channel unit is defined between two adjacent drive blades, and the channel unit connects the gas chamber and the annular air guide assembly.

[0010] In some embodiments of the present invention, in the vertical projection, the upper edge of the first curved wall panel is located directly below the first annular guide plate, and / or the upper edge of the second curved wall panel is located directly above the second annular guide plate, so that the airflow output from the channel unit can flow along the inner wall of the first curved wall panel or the second curved wall panel to the exhaust port.

[0011] In some embodiments of the present invention, the gap between the lower edge of the first curved wall panel and the lower edge of the second curved wall panel is larger than the gap between the upper edge of the first curved wall panel and the upper edge of the second curved wall panel, and in the vertical projection, the lower edge of the second curved wall panel is located directly above the annular baffle.

[0012] In some embodiments of the utility model, the electrical body is provided with a heat-insulating sleeve wrapping the motor, the heat-insulating sleeve is provided with an axial hole for the output shaft of the motor to extend out, one end of the output shaft of the motor extending out of the axial hole is passed through the impeller, and the impeller is provided with a heat-insulating tube covering the end of the output shaft of the motor.

[0013] In some embodiments of the present invention, the thermal insulation sleeve and the thermal insulation cylinder are both double-layer shells.

[0014] In some embodiments of the utility model, the heating component includes a burner and a gas valve mechanism connected to the burner, the interior of the gas chamber is provided with a first cover shell arranged on the outside of the burner and a second cover shell arranged on the outside of the first cover shell, the second cover shell and the first cover shell define an air intake duct connecting the air inlet and the input end of the fan assembly, and the outer peripheral wall of the first cover shell is covered with mixing holes connected to the air intake duct.

[0015] A heater according to an embodiment of the second aspect of the utility model includes a gas guide device of any of the above-mentioned technical solutions; the heater realizes the function of discharging air in a circumferential direction at an angle downward, and the hot air flow can rise after being blown to a low place to facilitate users to heat up quickly, and also improves the heat exchange efficiency with indoor air.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the appearance of an embodiment of a heater using a gas guide device of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of internal screenshots of the embodiment;

[0020] Figure 3 for Figure 2 Schematic diagram of the local structure;

[0021] Figure 4 for Figure 2 Schematic diagram of the structure in which the impeller and the annular air guide assembly are combined.

[0022] Reference numerals:

[0023] The electrical appliance body 100; the gas chamber 110; the air inlet 120; the exhaust port 130; the heating assembly 200; the burner 210; the gas valve mechanism 220; the fan assembly 300; the motor 310; the impeller 320; the first arc-shaped wall plate 321; the second arc-shaped wall plate 322; the driving blade 323; the annular air guide assembly 400; the first annular guide plate 410; the second annular guide plate 420; the annular baffle 500; the heat insulation sleeve 600; the heat insulation tube 700; the first cover shell 800; the gas mixing hole 810; the second cover shell 900. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 and Figure 4A gas flow guide device according to an embodiment of the utility model comprises: an electrical main body 100, in which a gas chamber 110 is provided, the electrical main body 100 is provided with an air inlet 120 and an exhaust port 130 which are connected to the gas chamber 110, and the exhaust port 130 is distributed around the circumference of the electrical main body 100 at the middle or upper part of the electrical main body 100; a heating component 200, which is arranged in the gas chamber 110; a fan component 300, which is arranged in the electrical main body 100, and is used to drive the external airflow to pass through the air inlet 120, the heating component 200 and the exhaust port 130 in sequence; and an annular air guide component 400, which is arranged between the output end of the fan component 300 and the exhaust port 130, and is used to drive the airflow to be output obliquely downward toward various positions of the exhaust port 130.

[0029] The gas guide device of the above structure utilizes the fan assembly 300 to drive the external air flow to enter from the air inlet 120 and then pass through the heating assembly 200. After the gas is heated, it passes through the annular air guide assembly 400. Under the guidance of the annular air guide assembly 400, an air flow is formed that blows obliquely downward toward various positions of the exhaust port 130, thereby realizing the oblique downward wind discharge in the circumferential direction of the electrical body 100. In the process of the hot air flow blowing obliquely downward from top to bottom, heat exchange can also be performed on a larger area. After the hot air flow is blown to a low place, it can rise to facilitate the user to quickly heat up, and also improve the heat exchange efficiency with the indoor air.

[0030] See also Figure 2 , Figure 3 and Figure 4 In some embodiments of the utility model, the annular air guide assembly 400 includes a first annular air guide plate 410 and a second annular air guide plate 420 which are spaced apart from each other. The inner peripheral edges of the first annular air guide plate 410 and the second annular air guide plate 420 are inclined downward toward the outer peripheral edges. The outer peripheral edge of the first annular air guide plate 410 is located at the upper edge of the exhaust port 130, and the outer peripheral edge of the second annular air guide plate 420 is located at the lower edge of the exhaust port 130. It can be understood that under the driving action of the fan assembly 300, the gas enters between the first annular air guide plate 410 and the second annular air guide plate 420. Since the inner peripheral edges of the first annular air guide plate 410 and the second annular air guide plate 420 are inclined downward toward the outer peripheral edges, the gas flows along the inner surfaces of the first annular air guide plate 410 and the second annular air guide plate 420 to various positions in the circumferential direction of the exhaust port 130, thereby achieving a uniform air outlet effect, which is conducive to sufficient and uniform heat dissipation and is suitable for the application scenario of heating for multiple people. Moreover, the outer peripheral edge of the first annular guide plate 410 is located at the upper edge of the exhaust port 130, and the outer peripheral edge of the second annular guide plate 420 is located at the lower edge of the exhaust port 130, which can prevent air flow from overflowing and prevent the problem of hot air flow accumulating inside the electrical body 100 and being unable to be discharged in time.

[0031] See also Figure 2 and Figure 3 In some embodiments of the utility model, the inner wall of the gas chamber 110 is installed with an annular baffle 500 located below the second annular guide plate 420, the fan assembly 300 includes a motor 310 and an impeller 320 connected to the output shaft of the motor 310, the impeller 320 is located between the annular baffle 500 and the first annular guide plate 410, the input end of the impeller 320 faces the middle through hole of the annular baffle 500, and the output end of the impeller 320 faces the area between the first annular guide plate 410 and the second annular guide plate 420. It can be understood that the input end of the impeller 320 is oriented toward the middle through hole of the annular baffle 500 so as to suck the gas in the gas chamber 110 and discharge it to the area between the first annular guide plate 410 and the second annular guide plate 420. The outer peripheral edge of the annular baffle 500 is fixed on the inner wall of the gas chamber 110, which is beneficial to guide the airflow into the input end of the impeller 320, alleviate the turbulence phenomenon, and help reduce noise.

[0032] See also Figure 3 and Figure 4 In some embodiments of the utility model, the output shaft of the motor 310 is arranged in the vertical direction, and the impeller 320 includes a first arc-shaped wall plate 321 and a second arc-shaped wall plate 322 arranged around the circumference of the output shaft of the motor 310 and in a trumpet shape with a small bottom and a large top. The second arc-shaped wall plate 322 is arranged at intervals on the outer circumference of the first arc-shaped wall plate 321, and the second arc-shaped wall plate 322 is connected to the first arc-shaped wall plate 321 through a plurality of drive blades 323 arranged at intervals. A channel unit is defined between two adjacent drive blades 323, and the channel unit connects the gas chamber 110 and the annular air guide assembly 400. Among them, the drive blades 323 extend along the lower edges of the first arc-shaped wall plate 321 and the second arc-shaped wall plate 322 to the upper edges of the first arc-shaped wall plate 321 and the second arc-shaped wall plate 322, and the formed multiple channel units surround the output shaft of the motor 310 for a circle, so that the multiple channel units and various positions of the exhaust port 130 form a face-to-face layout, which is conducive to the uniform discharge of hot air.

[0033] See also Figure 3In some embodiments of the present invention, in the vertical projection, the upper edge of the first curved wall panel 321 is located directly below the first annular guide plate 410, and / or the upper edge of the second curved wall panel 322 is located directly above the second annular guide plate 420, so that the airflow output from the channel unit can flow along the inner wall of the first curved wall panel 321 or the second curved wall panel 322 to the exhaust port 130. It can be understood that the airflow discharged from between the upper edge of the first curved wall panel 321 and the upper edge of the second curved wall panel 322 is guided by the inner walls of the first curved wall panel 321 and the second curved wall panel 322 and discharged into the annular air guide assembly 400 in a set direction. The upper edge of the first curved wall panel 321 is located directly below the first annular guide plate 410, and the upper edge of the second curved wall panel 322 is located directly above the second annular guide plate 420, which helps to ensure that the airflow does not overflow and ensure that all the gas enters between the first annular guide plate 410 and the second annular guide plate 420.

[0034] See also Figure 3 In some embodiments of the utility model, the gap between the lower edge of the first curved wall panel 321 and the lower edge of the second curved wall panel 322 is larger than the gap between the upper edge of the first curved wall panel 321 and the upper edge of the second curved wall panel 322, which is beneficial for concentrating the airflow toward the exhaust port 130. In the vertical projection, the lower edge of the second curved wall panel 322 is located directly above the annular baffle 500, thereby preventing part of the upward-flowing gas from being unable to enter the input end of the impeller 320, thereby further improving the exhaust efficiency.

[0035] See also Figure 2 and Figure 3 In some embodiments of the utility model, the electrical appliance body 100 is provided with a heat-insulating sleeve 600 that wraps the motor 310, and the heat-insulating sleeve 600 is provided with an axial hole for the output shaft of the motor 310 to extend out, and one end of the output shaft of the motor 310 extending out of the axial hole is penetrated by the impeller 320, and the impeller 320 is provided with a heat-insulating cylinder 700 that covers the end of the output shaft of the motor 310. It can be understood that when the motor 310 drives the impeller 320 to rotate, part of the hot air flow in the gas chamber 110 flows upward to directly transfer the heat to the motor 310 and to the inside of the motor 310 through the output shaft of the motor 310, and the motor 310 and the hot air flow can be fully isolated by using the heat-insulating sleeve 600 and the heat-insulating cylinder 700.

[0036] See also Figure 3In some embodiments of the present invention, in order to further improve the heat insulation effect, the heat is limited to be transferred to the inside of the motor 310 through the heat insulation sleeve 600 and the heat insulation cylinder 700, and the heat insulation sleeve 600 and the heat insulation cylinder 700 are both double-layer shells. In addition, it should be noted that the impeller 320 always drives the gas flow near the motor 310 during the rotation process, which is also conducive to avoiding heat accumulation. The shapes of the heat insulation sleeve 600 and the heat insulation cylinder 700 are not limited, and can be cylindrical, truncated cone, etc.

[0037] See also Figure 2 In some embodiments of the utility model, the heating assembly 200 includes a burner 210 and a gas valve mechanism 220 connected to the burner 210. The gas chamber 110 is provided with a first housing 800 covering the outside of the burner 210 and a second housing 900 covering the outside of the first housing 800. An air intake duct connecting the air inlet 120 and the input end of the fan assembly 300 is defined between the second housing 900 and the first housing 800. The outer peripheral wall of the first housing 800 is covered with gas mixing holes 810 connected to the air intake duct. The heating assembly 200 composed of the burner 210 and the gas valve mechanism 220 is conducive to rapid heating of gas. After the mixed gas is ignited, more oxygen is required during the combustion process. The gas mixing holes 810 can be used to supplement oxygen. In addition, the temperature of the generated hot air flow is relatively high. The hot air flow with a high temperature directly flowing upward is easy to damage the components in the electrical main body 100. The gas mixing holes 810 are also conducive to merging with external air to reduce the temperature of the air flow. In other embodiments, when the heating assembly 200 adopts electric heating or other non-combustion heating methods, the mixing holes 810 can still be used to merge external air to reduce the temperature of the airflow.

[0038] See also Figure 1 The utility model also discloses a heater, including a gas flow guide device of any of the above technical solutions; the heater realizes the function of discharging air in a circumferential direction at an angle downward, and the hot air flow can rise after being blown to a low place to facilitate users to quickly heat up, and also improves the heat exchange efficiency with indoor air.

[0039] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas flow guiding device, characterized in that: include: An electrical appliance body (100) having a gas chamber (110) disposed therein, the electrical appliance body (100) being provided with an air inlet (120) and an air outlet (130) connected to the gas chamber (110), the air outlet (130) being distributed around the circumference of the electrical appliance body (100) at the middle or upper part of the electrical appliance body (100); A heating component (200) is disposed in the gas chamber (110); A fan assembly (300) is provided on the electrical appliance body (100) and is used to drive external airflow to pass through the air inlet (120), the heating assembly (200) and the air outlet (130) in sequence; The annular air guide assembly (400) is arranged between the output end of the fan assembly (300) and the exhaust port (130), and is used to drive the airflow to be output obliquely downward toward various positions of the exhaust port (130).

2. A gas flow guiding device according to claim 1, characterized in that: The annular air guide assembly (400) comprises a first annular guide plate (410) and a second annular guide plate (420) which are spaced apart from each other in an upper and lower manner, wherein the inner peripheral edges of the first annular guide plate (410) and the second annular guide plate (420) are inclined downward toward the outer peripheral edges, the outer peripheral edge of the first annular guide plate (410) is located at the upper edge of the exhaust port (130), and the outer peripheral edge of the second annular guide plate (420) is located at the lower edge of the exhaust port (130).

3. A gas flow guiding device according to claim 2, characterized in that: The inner wall of the gas chamber (110) is provided with an annular baffle (500) located below the second annular guide plate (420); the fan assembly (300) comprises a motor (310) and an impeller (320) connected to an output shaft of the motor (310); the impeller (320) is located between the annular baffle (500) and the first annular guide plate (410); the input end of the impeller (320) faces the middle through hole of the annular baffle (500); and the output end of the impeller (320) faces the area between the first annular guide plate (410) and the second annular guide plate (420).

4. A gas flow guiding device according to claim 3, characterized in that: The output shaft of the motor (310) is arranged in a vertical direction, and the impeller (320) comprises a first arc-shaped wall plate (321) and a second arc-shaped wall plate (322) which are arranged around the circumference of the output shaft of the motor (310) and are in the shape of a trumpet with a smaller bottom and a larger top. The second arc-shaped wall plate (322) is arranged at intervals on the outer circumference of the first arc-shaped wall plate (321), and the second arc-shaped wall plate (322) is connected to the first arc-shaped wall plate (321) through a plurality of drive blades (323) arranged at intervals. A channel unit is defined between two adjacent drive blades (323), and the channel unit connects the gas chamber (110) and the annular air guide assembly (400).

5. A gas flow guiding device according to claim 4, characterized in that: In the vertical projection, the upper edge of the first curved wall panel (321) is located directly below the first annular guide plate (410), and / or the upper edge of the second curved wall panel (322) is located directly above the second annular guide plate (420), so that the airflow output from the channel unit can flow along the inner wall of the first curved wall panel (321) or the second curved wall panel (322) to the exhaust port (130).

6. A gas flow guiding device according to claim 4, characterized in that: The gap between the lower edge of the first curved wall panel (321) and the lower edge of the second curved wall panel (322) is greater than the gap between the upper edge of the first curved wall panel (321) and the upper edge of the second curved wall panel (322), and in the vertical projection, the lower edge of the second curved wall panel (322) is located directly above the annular baffle (500).

7. A gas flow guiding device according to claim 3, characterized in that: The electrical appliance body (100) is provided with a heat-insulating sleeve (600) that wraps the motor (310), and the heat-insulating sleeve (600) is provided with an axial hole for the output shaft of the motor (310) to extend out, and one end of the output shaft of the motor (310) extending out of the axial hole is passed through the impeller (320), and the impeller (320) is provided with a heat-insulating cylinder (700) that covers the end of the output shaft of the motor (310).

8. A gas flow guiding device according to claim 7, characterized in that: The thermal insulation sleeve (600) and the thermal insulation cylinder (700) are both double-layer shells.

9. A gas flow guiding device according to claim 1, characterized in that: The heating component (200) includes a burner (210) and a gas valve mechanism (220) connected to the burner (210); the interior of the gas chamber (110) is provided with a first cover shell (800) which is arranged outside the burner (210) and a second cover shell (900) which is arranged outside the first cover shell (800); an air intake duct which connects the air inlet (120) and the input end of the fan assembly (300) is defined between the second cover shell (900) and the first cover shell (800); the outer peripheral wall of the first cover shell (800) is covered with mixing holes (810) which are connected to the air intake duct.

10. A fan heater, characterized in that: It comprises a gas flow guiding device according to any one of claims 1-9.

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