Warm air blower

Abstract

A fan heater comprises a bottom plate and an upper shell, a fan is mounted on the bottom plate and driven by a waterproof motor to rotate, a vertical air deflector is arranged on the outer side of the fan and is of a volute structure, a cover plate is mounted at an opening in the upper portion of the air deflector, an opening is formed in the right side of the air deflector, and a filtering assembly is arranged on the right side of the filtering assembly; the right side of the electric heating assembly is provided with an air-out plate; the waterproof motor is installed on the upper portion of the cover plate, a motor shaft of the waterproof motor penetrates through the cover plate and then is connected with the fan, and a positioning sleeve is arranged in the center of the fan and used for being in interference fit with the motor shaft. According to the warm air blower structure, the filter assembly is arranged at the joint of the air guide plate and the electric heating assembly to filter air, so that air blown out by the warm air blower is in a clean and sanitary state, and the filter assembly is detachably mounted to facilitate subsequent cleaning or replacement; the motor is installed on the upper portion, the insulation performance of the motor can be effectively improved, the fan and the motor shaft are in interference fit through a conical structure and locked through a nut, and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to a fan heater. Background Art

[0002] As a common small household appliance, the fan heater mainly generates heat by using the heating element, and uses the fan to force the air to circulate and generate air flow. When the air flow passes through the heating element, it will take away the heat generated by the heating element, and the heat will be transferred to every corner of the room, thereby achieving the increase of the temperature of the indoor space. When working, most of the existing fan heaters can only suck in air, heat it, and then blow it out. Such fan heaters have relatively single functions, and generally the working environment of the fan heater is relatively closed. Over time, with the breathing of people and the closed environment, there will be necessary impurities in the air, which will affect the health of people. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a heater.

[0004] To achieve the above-mentioned purpose, the utility model provides a heater, including a bottom plate and an upper shell, a fan is installed on the bottom plate, the fan is driven to rotate by a waterproof motor, a vertical air guide plate is arranged on the outside of the fan, the air guide plate is integrally formed with the bottom plate, the air guide plate is a volute structure and a cover plate is installed at the upper opening, an opening is formed on the right side of the air guide plate and a filter assembly is arranged, an electric heating assembly is installed on the right side of the filter assembly, and an air outlet plate is installed on the right side of the electric heating assembly;

[0005] The waterproof motor is installed on the upper part of the cover plate, and the motor shaft of the waterproof motor passes through the cover plate and is connected to the fan. A positioning sleeve is provided at the center of the fan, and the positioning sleeve is arranged on the motor shaft to form an interference fit and is locked by a nut.

[0006] As a further improvement of the utility model, a conical positioning hole is processed at the center of the positioning sleeve, and a conical structure is processed at the lower part of the motor shaft to match the conical positioning hole.

[0007] As a further improvement of the utility model, the fan includes an upper positioning plate and a lower positioning plate, the positioning sleeve is arranged at the center of the upper positioning plate, blades are arranged between the upper positioning plate and the lower positioning plate, the blades are evenly distributed along the circumferential direction of the upper positioning plate, and the plane where the blades are located forms an angle with the diameter direction of the upper positioning plate.

[0008] As a further improvement of the utility model, an air inlet groove is processed below the fan and on the bottom plate, and the air inlet groove is inclined.

[0009] As a further improvement of the utility model, the filter assembly and the air guide plate are detachably connected, the two ends of the air guide plate are bent to form a slot, the two sides of the filter assembly are inserted into the slot, and the upper limit position is formed by a limit block on the upper part of the filter assembly, one end of the limit block is connected to the air guide plate by a bolt, and the other end of the limit block is crimped onto the upper part of the filter assembly.

[0010] As a further improvement of the utility model, a side opening processed on the right side wall of the upper shell corresponds to the air outlet plate.

[0011] As a further improvement of the utility model, the lower part of the bottom plate is mounted on the base through a rotating connecting piece.

[0012] The beneficial effects of the utility model are:

[0013] The heater structure filters the air by setting a filter assembly at the connection between the air guide plate and the electric heating assembly, so that the gas blown out by the heater is in a clean and hygienic state. The filter assembly can be detachably installed to facilitate subsequent cleaning or replacement; the motor is installed at the top, which can effectively improve the insulation performance of the motor. A conical structure is used between the fan and the motor shaft to form an interference fit and is locked by a nut for easy assembly; the overall structure is compact, the layout is reasonable, the installation is convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a heater of the utility model;

[0015] Figure 2 This is a side view of a heater of the utility model;

[0016] Figure 3 This is a top view after the upper shell is removed;

[0017] Figure 4 Schematic diagram of the structure of the fan impeller.

[0018] In the figure: 1. bottom plate; 12. air inlet slot; 2. upper shell; 21. side opening; 3. waterproof motor; 31. motor shaft; 4. fan; 41. upper positioning plate; 42. positioning sleeve; 43. conical positioning hole; 44. blade; 45. lower positioning plate; 5. air guide plate; 51. slot; 6. cover plate; 7. filter assembly; 71. limit block; 8. electric heating assembly; 9. air outlet plate; 10. rotating connector; 11. base. DETAILED DESCRIPTION

[0019] like Figure 1-3As shown, a heater described in the utility model comprises a bottom plate 1 and an upper shell 2. The lower part of the bottom plate 1 is mounted on a base 11 through a rotating connector 10. A fan 4 is mounted on the bottom plate 1. The fan 4 is driven to rotate by a waterproof motor 3. An air inlet slot 12 is processed below the fan 4 and on the bottom plate 1. The air inlet slot 12 is tilted. A vertical air guide plate 5 is arranged on the outside of the fan 4. The air guide plate 5 is integrally formed with the bottom plate 1. The air guide plate 5 is a volute structure and a cover plate 6 is installed at the upper opening. An opening is formed on the right side of the air guide plate 5 and a filter assembly 7 is arranged. An electric heating assembly 8 is installed on the right side of the filter assembly 7. An air outlet plate 9 is installed on the right side of the electric heating assembly 8. A side opening 21 is processed on the right side wall of the upper shell 2 to correspond to the air outlet plate 9.

[0020] The waterproof motor 3 is installed on the upper part of the cover plate 6. The motor shaft 31 of the waterproof motor 3 passes through the cover plate 6 and is connected to the fan 4. A positioning sleeve 42 is provided at the center of the fan 4. The positioning sleeve 42 is sleeved on the motor shaft 31 to form an interference fit and is locked by a nut. A conical positioning hole 43 is processed at the center of the positioning sleeve 42. A conical structure is processed at the lower part of the motor shaft 31 to match the conical positioning hole 43. The fan 4 includes an upper positioning plate 41 and a lower positioning plate 45. The positioning sleeve 42 is sleeved at the center of the upper positioning plate 41. Blades 44 are provided between the upper positioning plate 41 and the lower positioning plate 45. The blades 44 are evenly distributed along the circumferential direction of the upper positioning plate 41, and the plane where the blades 44 are located forms an angle with the diameter direction of the upper positioning plate 41.

[0021] The filter assembly 7 is detachably connected to the air guide plate 5. The two ends of the air guide plate 5 are bent to form a slot 51. The two sides of the filter assembly 7 are inserted into the slot 51. The upper part of the filter assembly 7 is formed with an upper limit by a limit block 71. One end of the limit block 71 is connected to the air guide plate 5 by bolts, and the other end of the limit block 71 is crimped to the upper part of the filter assembly 7.

[0022] The heater structure filters the air by setting a filter assembly at the connection between the air guide plate and the electric heating assembly, so that the gas blown out by the heater is in a clean and hygienic state. The filter assembly can be detachably installed to facilitate subsequent cleaning or replacement; the motor is installed at the top, which can effectively improve the insulation performance of the motor. A conical structure is used between the fan and the motor shaft to form an interference fit and is locked by a nut for easy assembly; the overall structure is compact, the layout is reasonable, the installation is convenient, and the practicability is strong.

[0023] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0024] When in use, the waterproof motor drives the fan to rotate, and the air flow is sucked in through the air inlet slot of the base plate, then flows along the air guide plate to the right side opening, and then passes through the filter component and combines with the heat generated by the electric heating component to form a hot air flow that is blown out by the air outlet plate. The air inlet slot is obliquely set at the bottom of the base plate, so the air intake is smooth and water vapor is not easy to enter. Combined with the snail-shaped air guide plate design, a vortex-like air outlet is formed in the air guide plate, making the air outlet laminar, which can effectively reduce wind resistance.

[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fan heater, characterized in that: The invention comprises a bottom plate (1) and an upper shell (2), wherein a fan (4) is installed on the bottom plate (1), and the fan (4) is driven to rotate by a waterproof motor (3). A vertical air guide plate (5) is arranged on the outside of the fan (4), and the air guide plate (5) is integrally formed with the bottom plate (1). The air guide plate (5) is a volute-shaped structure and a cover plate (6) is installed at the upper opening. An opening is formed on the right side of the air guide plate (5) and a filter assembly (7) is arranged. An electric heating assembly (8) is installed on the right side of the filter assembly (7), and an air outlet plate (9) is installed on the right side of the electric heating assembly (8); The waterproof motor (3) is mounted on the upper part of the cover plate (6); the motor shaft (31) of the waterproof motor (3) passes through the cover plate (6) and is connected to the fan (4); a positioning sleeve (42) is provided at the center of the fan (4); the positioning sleeve (42) is sleeved on the motor shaft (31) to form an interference fit and is locked by a nut.

2. A fan heater according to claim 1, characterized in that: A conical positioning hole (43) is machined at the center of the positioning sleeve (42), and a conical structure is machined at the lower part of the motor shaft (31) to match the conical positioning hole (43).

3. The air heater according to claim 1, characterized in that: The fan (4) comprises an upper positioning plate (41) and a lower positioning plate (45); the positioning sleeve (42) is sleeved at the center of the upper positioning plate (41); blades (44) are arranged between the upper positioning plate (41) and the lower positioning plate (45); the blades (44) are evenly distributed along the circumferential direction of the upper positioning plate (41); and a plane where the blades (44) are located forms an angle with a diameter direction of the upper positioning plate (41).

4. The air heater according to claim 1, characterized in that: An air inlet groove (12) is processed below the fan (4) and on the bottom plate (1), and the air inlet groove (12) is arranged at an angle.

5. The air heater according to claim 1, characterized in that: The filter assembly (7) is detachably connected to the air guide plate (5); both ends of the air guide plate (5) are bent to form a slot (51); both sides of the filter assembly (7) are inserted into the slot (51); an upper limit is formed on the upper part of the filter assembly (7) by a limit block (71); one end of the limit block (71) is connected to the air guide plate (5) by a bolt; and the other end of the limit block (71) is pressed onto the upper part of the filter assembly (7).

6. The air heater according to claim 1, characterized in that: A side opening (21) is processed on the right side wall of the upper shell (2) and corresponds to the air outlet plate (9).

7. The air heater according to claim 1, characterized in that: The lower part of the bottom plate (1) is mounted on a base (11) via a rotating connection member (10).

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