Motor structure for fan heater

By designing a dual filtration system and atomization heater in the fan, the shortcomings of traditional fan in air filtration, heating speed improvement and motor protection are solved, and more efficient heating and longer service life are achieved.

CN119582511APending Publication Date: 2025-03-07ZHEJIANG JIUHE MECHANICAL & ELECTRICAL CO LTD
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Patent Information

Application Number
CN202411777587.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-03-07

AI Technical Summary

Technical Problem

Traditional air heaters have shortcomings in air filtration, heating speed improvement, motor protection, fan blade cleaning and internal cleaning convenience, resulting in a decrease in motor performance and shortened service life.

Method used

A motor structure for air heaters is designed, using a dual filtration system and atomization heater for air preheating and fan blade cleaning, combining a removable fixing plate and sealing ring to achieve convenient cleaning of motor components.

Benefits of technology

Through dual air filtration and preheating technology, the heating speed and thermal efficiency of the fan are improved, while protecting the motor and fan blades, extending the service life of the fan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a motor structure for a warm air blower, and relates to the technical field of motors, the motor structure comprises a motor assembly, a motor main body is fixedly installed in the motor assembly, output shafts on the left and right sides of the motor main body are fixedly provided with motor fan blades, and the back surface of the motor assembly is provided with an air inlet hole. An exhaust frame is arranged on the front side of the motor assembly, an air inlet fixing frame is fixedly installed on the rear side of the motor assembly, an air penetrating groove is formed in the air inlet fixing frame, the air inlet holes are communicated with the air penetrating groove, and air enters the air inlet holes in the motor assembly through the air penetrating groove and is finally exhausted through exhaust holes in the front sides of the two motor fan blades. Air enters the exhaust frame and then is exhausted through the exhaust frame, the air sucked by the motor assembly is filtered through the filter screen frame and then is exhausted through the exhaust frame, it is guaranteed that the entering air is clean, the exhausted air is subjected to secondary filtering through the exhaust frame, and the dual air filtering effect is achieved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of motors, and more specifically, particularly relates to a motor structure for a heater. Background Art

[0002] In the use of heaters, there are some problems with air filtration and motor protection.

[0003] Traditional heaters are relatively simple in terms of air intake filtration, usually only have a simple filtering structure, and it is difficult to achieve a double filtering effect, resulting in the air entering the motor assembly may not be clean enough, affecting the motor performance and the heating effect of the heater. In terms of improving the heating speed of the heater, there is a lack of pre-heating treatment of the incoming air. A large amount of cold air directly contacts the heater, which will reduce the working efficiency and heating capacity. At the same time, during the air heating process, the temperature control is not precise enough, and it is easy to cause damage to the motor due to excessive temperature. It is also difficult to effectively protect the motor while improving thermal efficiency. Dust is easily accumulated on the surface of the motor blades, affecting its working stability, but the existing cleaning methods are not effective, and it is difficult to maintain the cleanliness of the motor blades. As for the cleaning of the inside of the motor assembly, the traditional design is not convenient enough, and it is difficult to easily disassemble and clean the internal dirt and dust, affecting the long-term stable operation of the heater.

[0004] In summary, traditional heaters have shortcomings in air filtration, heating speed improvement, motor protection, fan blade cleaning and internal cleaning convenience, and improvements are needed to improve the performance and service life of the heater. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a motor structure for a heater to solve the above problems.

[0006] A motor structure for a heater includes a motor assembly, a motor body is fixedly installed inside the motor assembly, motor blades are fixedly installed on output shafts on the left and right sides of the motor body, an air inlet hole is provided on the back side of the motor assembly, an exhaust frame is provided on the front side of the motor assembly, an air inlet fixing frame is fixedly installed on the rear side of the motor assembly, an air through groove is provided inside the air inlet fixing frame, the air inlet hole and the air through groove are connected, and a filter frame is fixedly installed on the back side of the air inlet fixing frame.

[0007] Preferably, support plates are fixedly installed on the inner walls on both sides of the upper and lower sides of the exhaust frame, an installation groove is opened inside the support plate located below the exhaust frame, an installation groove is installed inside the installation groove, side fixing plates are fixedly installed between the two sides of the two support plates and the inner wall of the exhaust frame, frames are fixedly installed on the left and right sides of the filter rack, heating resistor wires are fixedly installed inside the two frames, and a first filter is fixedly installed on the surface of each filter rack.

[0008] Preferably, sealing gaskets are fixedly installed on the left and right sides of the top and bottom of the air intake fixing frame, each of the sealing gaskets is in contact with the surface of the motor assembly, a second filter is fixedly installed inside each of the frames, a certain interval is formed between each of the second filter and the heating resistor wire, side fixing frames are fixedly installed on the surfaces of the motor assembly near the left and right ends, and fixing bolts are installed between each of the side fixing frames and the side fixing plates.

[0009] Preferably, a sealing groove is provided through the bottom of the motor assembly, a second fixing plate is installed inside each sealing groove, two handles are fixedly installed under each second fixing plate, at least two atomizing heaters are fixedly installed on the left and right inner walls of the motor assembly above the two motor blades, and a water pipe is fixedly installed between the tops of the multiple atomizing heaters on each side.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] In the present invention, air enters the filter frame through the first filter, then enters the air penetration groove inside the air intake fixing frame through the filter frame, then enters the air intake hole inside the motor assembly through the air penetration groove, and finally is discharged through the exhaust holes on the front sides of the two motor fan blades. The air enters the exhaust frame and is then discharged through the exhaust frame. The filter frame is used to filter the air drawn into the motor assembly and then discharged through the exhaust frame, thereby ensuring that the incoming air is relatively clean, and the exhausted air is also filtered for a second time through the exhaust frame, thereby playing a double air filtering role.

[0012] In the present invention, two groups of heating resistors are started, and air enters from the first filter and the two second filters. When the air enters the second filter, the air is preheated by the heating resistors, and then the air is discharged into the heater of the heater through the motor assembly, thereby effectively improving the speed at which the heater heats the air, and preventing a large amount of cold air from contacting the heater in the heater, thereby reducing the working efficiency of the heater and causing the heating capacity of the heater to become lower.

[0013] In the present invention, the air is filtered in advance when passing through the first filter and the second filter, and the air entering from the first filter is mixed with the air entering from the second filter on both sides. Since the air entering from the second filter on both sides is preheated, the mixed air is also in a warm state, thereby avoiding damage to the motor body due to excessive air temperature caused by heating by the heating resistor, thereby improving the thermal efficiency and protecting the motor body. At the same time, the air is filtered in advance to protect the two motor blades.

[0014] In the present invention, an external water pump is connected to two water pipes, and the water pump is started to transmit water to the atomizing heater. The atomizing heater heats the water and sprays it onto the surface of the motor blades in an atomized form. The high-temperature water mist can melt the dust on the surface of the motor blades, and the motor blades can shake off the dust when rotating at a high speed. The surface of the motor blades is cleaned by high-temperature atomization, thereby maintaining the cleanliness of the motor blades and improving the stability of the motor blades during operation.

[0015] In the present invention, the shaken-off water and dust will slide to the top of the second fixed plate, and a part of them will be blocked by the exhaust frame to the top of the first fixed plate. The user can pull down the first fixed plate and the handle to disassemble them, and install them back after cleaning the stolen goods. The first fixed plate and the second fixed plate are both provided with sealing rings on the outer rings, so they can maintain a sealed state after installation, and the sealing rings can prevent the first fixed plate and the second fixed plate from falling. The first fixed plate and the second fixed plate are designed to be detachable, so that the inside of the motor assembly can be easily cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the motor assembly of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the side fixing plate of the present invention;

[0018] Figure 3 It is a schematic diagram of the support plate structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the air intake fixing frame of the present invention;

[0020] Figure 5 It is a schematic diagram of the water pipe structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the filter frame structure of the present invention.

[0022] In the figure, the correspondence between the component names and the figure numbers is: 1. Motor assembly; 11. Motor body; 12. Motor blades; 13. Air inlet; 14. Side fixing frame; 15. Fixing bolts; 16. Exhaust frame; 17. Side fixing plate; 18. Support plate; 19. Mounting groove; 2. First fixing plate; 21. Water pipe; 22. Atomizing heater; 23. Air inlet fixing frame; 24. Air penetration groove; 25. Sealing gasket; 26. First filter; 27. Frame; 28. Heating resistor wire; 29. ​​Second filter; 3. Filter frame; 31. Second fixing plate; 32. Handle. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] See also Figure 1-Figure 6 The present invention provides a motor structure for a heater, including a motor assembly 1, wherein a motor body 11 is fixedly installed inside the motor assembly 1, motor blades 12 are fixedly installed on output shafts on both sides of the motor body 11, an air inlet hole 13 is opened on the back of the motor assembly 1, an exhaust frame 16 is arranged on the front side of the motor assembly 1, an air inlet fixing frame 23 is fixedly installed on the rear side of the motor assembly 1, and then enters the air inlet hole 13 inside the motor assembly 1 through an air penetration groove 24, and finally is discharged through the exhaust holes on the front sides of the two motor blades 12, the air enters the exhaust frame 16, and then is discharged through the exhaust frame 16, a filter frame 3 is used to filter the air drawn into the motor assembly 1, and then is discharged through the exhaust frame 16, an air penetration groove 24 is opened inside the air inlet fixing frame 23, the air inlet hole 13 and the air penetration groove 24 are connected, and the air inlet fixing frame 2 A filter rack 3 is fixedly installed on the back of 3, and support plates 18 are fixedly installed on the inner walls of the upper and lower sides of the exhaust rack 16. A mounting groove 19 is penetrated inside the support plate 18 located below the exhaust rack 16, and a mounting groove 19 is installed inside the mounting groove 19. Side fixing plates 17 are fixedly installed between the two sides of the two support plates 18 and the inner wall of the exhaust rack 16. Frames 27 are fixedly installed on the left and right sides of the filter rack 3. The air will be preheated by the heating resistor 28, and then the air is discharged into the heater of the heater through the motor assembly 1, thereby effectively improving the speed at which the heater heats the air, and avoiding a large amount of cold air contacting the heater in the heater, which reduces the working efficiency of the heater. Heating resistors 28 are fixedly installed inside the two frames 27, and a first filter 26 is fixedly installed on the surface of each filter rack 3.

[0025] Sealing pads 25 are fixedly installed on the left and right sides of the top and bottom of the air intake fixing frame 23, and each sealing pad 25 is in contact with the surface of the motor assembly 1. A second filter screen 29 is fixedly installed inside each frame 27, and a certain interval is formed between each second filter screen 29 and the heating resistor wire 28. The surface of the motor assembly 1 near the left and right ends is fixedly installed with a side fixing frame 14. Dust will still adhere to the surface of the motor blade 12. The user connects the external water pump to the two water pipes 21. The water pump is started to transfer water to the atomizing heater 22. The atomizing heater 22 heats the water and sprays it onto the surface of the motor blade 12 in an atomized form. The high-temperature water mist can remove the dust on the surface of the motor blade 12. The dust melts, and the motor blades 12 can shake off the dust when rotating at high speed. The surface of the motor blades 12 is cleaned by high-temperature atomization, so as to maintain the cleanliness of the motor blades 12. A fixing bolt 15 is installed between each side fixing frame 14 and the side fixing plate 17. A sealing groove is opened through the bottom of the motor assembly 1, and a second fixing plate 31 is installed inside each sealing groove. Two handles 32 are fixedly installed under each second fixing plate 31. At least two atomizing heaters 22 are fixedly installed on the inner walls on the left and right sides of the motor assembly 1 above the two motor blades 12, and a water pipe 21 is fixedly installed between the tops of multiple atomizing heaters 22 on each side.

[0026] Working principle:

[0027] In the first step, when the motor assembly 1 is in operation, the motor body 11 inside the motor assembly 1 starts to drive the motor blades 12 on both sides to rotate, and the two motor blades 12 rotate to start exhausting air, and the air enters the filter frame 3 through the first filter 26, and then enters the air penetration groove 24 inside the air intake fixing frame 23 through the filter frame 3, and then enters the air intake hole 13 inside the motor assembly 1 through the air penetration groove 24, and finally is discharged through the exhaust holes on the front side of the two motor blades 12, and the air enters the exhaust frame 16, and then is discharged through the exhaust frame 16. The filter frame 3 is used to filter the air drawn into the motor assembly 1, and then it is discharged through the exhaust frame 16, which ensures that the incoming air is relatively clean, and the exhausted air is also filtered for a second time through the exhaust frame 16, thereby playing a double air filtering role.

[0028] In the second step, when the air passes through the filter frame 3, the two sets of heating resistors 28 are started, and the air enters from the first filter 26 and the two second filters 29. When the air enters the second filter 29, the air is preheated by the heating resistors 28, and then the air is discharged into the heater of the heater through the motor assembly 1, thereby effectively improving the speed of the heater heating the air, and preventing the cold air from contacting the heater in the heater in a large amount, which reduces the working efficiency of the heater and causes the heating capacity of the heater to be reduced;

[0029] When the air passes through the first filter 26 and the second filter 29, the air is filtered in advance, and the air entering from the first filter 26 is mixed with the air entering from the second filters 29 on both sides. Since the air entering from the second filters 29 on both sides is preheated, the mixed air is also in a warm state, thereby avoiding damage to the motor body 11 due to excessive air temperature caused by heating by the heating resistor 28. The motor body 11 is protected while the thermal efficiency is improved. At the same time, the air is filtered in advance to protect the two motor blades 12.

[0030] The third step is that after the motor blades 12 have been used for a long time, dust still adheres to the surface of the motor blades 12. The user connects the external water pump to the two water pipes 21, and the water pump is started to transmit water to the atomizing heater 22. The atomizing heater 22 heats the water and sprays it onto the surface of the motor blades 12 in an atomized form. The high-temperature water mist can melt the dust on the surface of the motor blades 12. The motor blades 12 can shake off the dust when rotating at a high speed. The surface of the motor blades 12 is cleaned by a high-temperature atomization method, thereby maintaining the cleanliness of the motor blades 12 and improving the stability of the motor blades 12 during operation.

[0031] The shaken-off water and dust will slide to the top of the second fixed plate 31, and a part of them will be blocked by the exhaust frame 16 to the top of the first fixed plate 2. The user can pull down the first fixed plate 2 and the handle 32 to disassemble them, and install them back after cleaning the stolen goods. The first fixed plate 2 and the second fixed plate 31 are both provided with sealing rings on the outer rings, so that the sealing state can be maintained after installation, and the sealing rings can prevent the first fixed plate 2 and the second fixed plate 31 from falling. The first fixed plate 2 and the second fixed plate 31 are designed to be detachable, so that the inside of the motor assembly 1 can be easily cleaned.

[0032] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A motor structure for a heater, comprising a motor assembly (1), characterized in that: A motor body (11) is fixedly installed inside the motor assembly (1), and motor blades (12) are fixedly installed on the output shafts on the left and right sides of the motor body (11). An air inlet hole (13) is provided on the back of the motor assembly (1), and an exhaust frame (16) is provided on the front side of the motor assembly (1). An air inlet fixed frame (23) is fixedly installed on the rear side of the motor assembly (1), and an air permeation groove (24) is provided inside the air inlet fixed frame (23). The air inlet hole (13) and the air permeation groove (24) are connected to each other. A filter frame (3) is fixedly installed on the back of the air inlet fixed frame (23).

2. A motor structure for a heater as claimed in claim 1, characterized in that: Support plates (18) are fixedly mounted on the inner walls of both upper and lower sides of the exhaust frame (16), and a mounting groove (19) is provided through the interior of the support plate (18) located below the exhaust frame (16).

3. A motor structure for a heater as claimed in claim 2, characterized in that: The installation groove (19) is installed inside the installation groove (19), and side fixing plates (17) are fixedly installed between the two sides of the two support plates (18) and the inner wall of the exhaust frame (16).

4. A motor structure for a heater as claimed in claim 1, characterized in that: Frames (27) are fixedly mounted on both left and right sides of the filter frame (3), heating resistance wires (28) are fixedly mounted inside the two frames (27), and a first filter (26) is fixedly mounted on the surface of each filter frame (3).

5. A motor structure for a heater as claimed in claim 4, characterized in that: Sealing pads (25) are fixedly mounted on both the left and right sides of the top and bottom of the air intake fixing frame (23), and each of the sealing pads (25) fits against the surface of the motor assembly (1).

6. A motor structure for a heater as claimed in claim 5, characterized in that: A second filter screen (29) is fixedly installed inside each of the frames (27), and a certain interval is formed between each of the second filter screens (29) and the heating resistance wire (28).

7. A motor structure for a heater as claimed in claim 1, characterized in that: Side fixing frames (14) are fixedly mounted on the surfaces of the motor assembly (1) close to the left and right ends, and fixing bolts (15) are installed between each side fixing frame (14) and the side fixing plate (17).

8. A motor structure for a heater as claimed in claim 1, characterized in that: A sealing groove is provided through the bottom of the motor assembly (1), and a second fixing plate (31) is installed inside each sealing groove.

9. A motor structure for a heater as claimed in claim 8, characterized in that: Two handles (32) are fixedly mounted below each of the second fixing plates (31).

10. A motor structure for a heater as claimed in claim 1, characterized in that: At least two atomizing heaters (22) are fixedly mounted on the inner walls on both sides of the left and right sides of the motor assembly (1) located above the two motor blades (12), and a water pipe (21) is fixedly mounted between the tops of the multiple atomizing heaters (22) on each side.