Cooling and heating circulation fan with built-in heating assembly

Abstract

The utility model relates to a cooling and heating circulation fan with a built-in heating component, which comprises an inner shell, an annular air duct is arranged in the inner shell, an air outlet and an air inlet are respectively arranged at two ends of the annular air duct, and the air inlet and the air outlet are respectively positioned at an air inlet end and an air outlet end of an air duct. The outer wall of the side, facing the axis of the air duct, of the inner shell forms an electric control cavity in the air duct, the electric control cavity is not communicated with the annular air duct, the electric control module is arranged in the electric control cavity, a wind wheel motor and a fan are arranged in the electric control cavity, a heating assembly is arranged in the annular air duct, and the heating assembly is located at the front end of the wind wheel motor and the front end of the wind wheel and is close to the air outlet. The heating assembly is arranged in the annular air channel, and the electric control module is arranged in the electric control cavity which is not communicated with the annular air channel, so that hot air cannot enter the electric control cavity, the influence of the hot air on normal work of parts such as a circuit board is reduced, and the stability of the use function of the cooling and heating circulation fan is guaranteed; and the cooling and heating circulating fan runs more safely.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and particularly relates to a cooling and heating circulation fan with a built-in heating component. Background Art

[0002] A circulating fan is a fan that can blow out warm air. Currently, circulating fans on the market have PTC or heating wires at the air inlet. When powered on, the PTC or heating wires generate heat, and when the outside air passes through, heat exchange occurs to raise the air temperature, and then the air is blown out from the outlet of the circulating fan to achieve the warm air function. However, after the air is heated, this structure will fill the entire circulating fan with hot air, greatly increasing the operating temperature of the motor, circuit board, and structural parts, affecting the stability of the use function, and even causing safety accidents. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a heating and cooling circulation fan with a built-in heating component, wherein the heating component is arranged in an annular air duct, and components such as a circuit board are arranged in an electric control cavity which is not connected to the annular air duct, so that hot air cannot enter the electric control cavity, thereby reducing the influence of hot air on the normal operation of components such as the circuit board, ensuring the stability of the use function of the heating and cooling circulation fan, and making the operation of the heating and cooling circulation fan safer.

[0004] The utility model is implemented as follows: a cooling and heating circulation fan with a built-in heating component is provided, including an axially blowing air cylinder and a support rod supporting the air cylinder, and also including a base for fixing the support rod. One axial end of the air cylinder is an air outlet end, and the other end is an air inlet end. The air cylinder includes an inner shell and an outer shell connected to each other. An annular air duct is arranged in the inner shell, and an air outlet and an air inlet are respectively arranged at both ends of the annular air duct. The air inlet is located at the air inlet end of the air cylinder, and the air outlet is located at the air outlet end of the air cylinder. A cylindrical electric control cavity is arranged in the inner side wall of the annular air duct. The electric control cavity is not connected to the annular air duct. An electric control module for controlling the cooling and heating circulation fan is arranged in the electric control cavity. The electric control module includes a circuit board. The circuit board is fixed on the inner wall of the electric control cavity and close to the position of the air outlet. A wind wheel motor is provided near the air inlet end of the electronically controlled cavity, and a wind wheel is connected to the wind wheel motor outside the electronically controlled cavity, and the wind wheel is close to the air inlet. A heating component is provided in the annular air duct, and the heating component includes a heating unit. When viewed from the axial direction of the annular air duct, the heating unit is located in the middle position of the annular air duct, and when viewed from the lateral direction of the annular air duct, the heating unit is located between the position of the circuit board and the position of the wind wheel motor.

[0005] Furthermore, an oscillating head structure is provided in the electric control cavity, and the oscillating head structure is arranged at the connection between the wind tube and the support rod. The heating component is a U-shaped ring structure, and the middle part is hollowed out to avoid the oscillating head structure.

[0006] Furthermore, the heating component includes a U-shaped bracket, the heating unit is a heating wire, the heating wire is arranged in a spring-shaped spiral, and the bracket is evenly provided with a plurality of mica sheets. The heating wire is pressed against the mica sheets in sequence from one end of the bracket to the other end of the bracket and fixed. The plurality of mica sheets press against the heating wire so that the heating wire is separated from the bracket.

[0007] Furthermore, the bracket is provided with 1 to 3 circles of the heating wire arranged side by side along the blowing direction.

[0008] Furthermore, an end face of the electric control cavity close to the air inlet end is provided with a mounting groove recessed toward the air outlet end, the wind wheel motor is installed in the mounting groove, and a fixing frame is provided on one side of the wind wheel motor, the fixing frame is fixedly connected to the wind wheel motor, and the fixing frame is fixedly installed at the opening of the mounting groove.

[0009] Furthermore, the outer shell is provided with an air inlet grille at the air inlet end.

[0010] Furthermore, the electric control module includes a circuit board, a display screen is provided on the side of the circuit board facing the air outlet, and the circuit board is electrically connected to the heating component, the wind wheel motor and the display screen respectively.

[0011] Furthermore, a connecting piece is provided at the upper end of the support rod, and the connecting piece is hinged to the wind tube, and an up and down shaking motor and an up and down shaking assembly are provided in the wind tube, the up and down shaking motor is located in the electric control cavity, and the up and down shaking assembly is located between the up and down shaking motor and the connecting piece, and the up and down shaking motor is combined with the connecting piece through the up and down shaking assembly, and the up and down shaking assembly is provided with power so that the wind tube can rotate up and down, and a left and right shaking motor and a left and right shaking assembly are provided inside the support rod, and the left and right shaking motor is combined with the connecting piece through the left and right shaking assembly, and the left and right shaking assembly is provided with power so that the connecting piece and the wind tube can rotate around the axis of the support rod.

[0012] Compared with the prior art, the utility model of the cooling and heating circulation fan with built-in heating component comprises an inner shell and an outer shell connected to each other, an annular air duct is arranged in the inner shell, an air outlet and an air inlet are arranged at both ends of the annular air duct, the air inlet is located at the air inlet end of the air cylinder, and the air outlet is located at the air outlet end of the air cylinder. A cylindrical electric control cavity is arranged in the inner side wall of the annular air duct, the electric control cavity is not connected with the annular air duct, an electric control module for controlling the cooling and heating circulation fan is arranged in the electric control cavity, and the electric control module comprises a circuit board, which is fixed on the inner wall of the electric control cavity and close to the position of the air outlet. The electric control cavity is provided with a wind wheel motor near the air inlet end, and the wind wheel motor is connected to a wind wheel outside the electric control cavity, and the wind wheel is close to the air inlet. A heating component is provided in the annular air duct, and the heating component includes a heating unit. From the axial direction of the annular air duct, the heating unit is located in the middle position of the annular air duct, and from the lateral direction of the annular air duct, the heating unit is located between the position of the circuit board and the position of the wind wheel motor. The utility model sets the heating unit in the annular air duct, so that hot air cannot enter the electric control cavity, reduce the influence of hot air on the normal operation of components such as the circuit board, ensure the stability of the use function of the cold and warm circulation fan, and the operation of the cold and warm circulation fan is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of a preferred embodiment of the utility model;

[0014] Figure 2 for Figure 1 A three-dimensional image from another angle;

[0015] Figure 3 for Figure 2 The AA rotating cross-sectional diagram in the middle shows a full cross-sectional diagram of the wind tube structure of the utility model;

[0016] Figure 4 for Figure 1 A partial cross-sectional view of the inner shell portion;

[0017] Figure 5 This is a schematic diagram of the structure of the inner housing and the wind wheel motor of the utility model;

[0018] Figure 6 for Figure 3 Schematic diagram of the heating component;

[0019] Figure 7 for Figure 1 Full cross-section view in the axial direction.

[0020] In the figure: 1 - air cylinder, 2 - support rod, 3 - base, 4 - air outlet, 5 - air inlet, 6 - connecting piece, 7 - up and down shaking motor, 8 - left and right shaking motor, 9 - up and down shaking assembly, 10 - left and right shaking assembly, 11 - heating assembly, 12 - outer shell, 13 - electric control cavity, 14 - wind wheel motor, 15 - wind wheel, 16 - circuit board, 17 - display screen, 18 - installation slot, 19 - fixing bracket, 20 - air outlet, 21 - fracture, 22 - bracket, 23 - heating unit, 24 - mica sheet, 25 - air inlet grille, 26 - annular air duct, 27 - inner shell. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] Please refer to Figures 1 to 7 As shown, a preferred embodiment of a cooling and heating circulation fan with a built-in heating component of the utility model comprises an axially blowing fan 1 and a support rod 2 supporting the fan 1, and also comprises a base 3 for fixing the support rod 2. The base 3 is provided with a wire connection plug, and the wire enters from the base 3, passes through the support rod 2 and reaches the fan 1 to supply power to the internal components of the fan 1.

[0023] One axial end of the wind tube 1 is an air outlet end 4, and the other end is an air inlet end 5. A connecting piece 6 is provided at the upper end of the support rod 2, and the connecting piece 6 is hinged to the wind tube 1. An up and down shaking motor 7 and an up and down shaking assembly 9 are provided in the wind tube 1, and the up and down shaking motor 7 is located in the electric control cavity 13, and the up and down shaking assembly 9 is located between the up and down shaking motor 7 and the connecting piece 6. The up and down shaking motor 7 is combined and connected with the connecting piece 6 through the up and down shaking assembly 9, and the up and down shaking assembly 9 is provided with power so that the wind tube 1 can rotate in the up and down directions. A left and right shaking motor 8 and a left and right shaking assembly 10 are provided inside the support rod 2, and the left and right shaking motor 8 is combined and connected with the connecting piece 6 through the left and right shaking assembly 10, and the left and right shaking assembly 10 is provided with power so that the connecting piece 6 and the wind tube 1 can rotate around the axis of the support rod 2.

[0024] The air duct 1 comprises: an inner shell 27 and an outer shell 12 connected to each other, and the outer shell 12 is arranged outside the inner shell 27. An annular air duct 26 is arranged in the inner shell 27, and the annular air duct 26 is provided with an air inlet and an air outlet 20, and the air inlet and the air outlet 20 are respectively located at the air inlet end 5 and the air outlet end 4 of the air duct 1. A cylindrical electric control cavity 13 is arranged in the inner side wall of the annular air duct 26, and the electric control cavity 13 is not connected with the annular air duct 26. An electric control module for controlling the cold and warm circulation fan is arranged in the electric control cavity 13, for example, controlling the cold and warm circulation fan to shake up and down, shake left and right, adjust the cold and warm wind, adjust the wind speed, etc. The electric control module comprises a circuit board 16, and the circuit board 16 is fixed on the inner wall of the electric control cavity 13 and close to the position of the air outlet 20. The electric control cavity 13 is provided with a wind wheel motor 14 near the air inlet end, and the wind wheel motor 14 is connected with a wind wheel 15 outside the electric control cavity 13, and the wind wheel 15 is close to the air inlet.

[0025] A heating assembly 11 is provided in the annular air duct 26, and the heating assembly 11 includes a heating unit 23. From the axial direction of the annular air duct 26, the heating unit 23 is located in the middle of the annular air duct 26. From the lateral direction of the annular air duct 26, the heating unit 23 is located between the position of the circuit board 16 and the position of the wind wheel motor 14. In this way, the heating unit 23 of the heating assembly 11 is not in contact with the inner shell 27, which reduces the heat exchange between the heating assembly 11 and the inner shell 27. At the same time, the hot air in the annular air duct 26 will not affect the wind wheel motor 14 and the wind wheel 15. The wind wheel 15 drives the air from the air inlet end 5 to flow through the annular air duct 26 and is heated by the heating assembly 11, and finally blows out of the wind tube 1 from the air outlet end 4. In this way, the heating unit 23 is arranged in the annular air duct 26, and the motor, circuit board and other components are arranged in the electric control cavity that is not connected to the annular air duct 26, so that hot air cannot enter the electric control cavity 13, reducing the impact of hot air on the normal operation of components such as the circuit board 16, ensuring the stability of the use function of the cold and warm circulation fan, and the operation of the cold and warm circulation fan is safer. The material of the annular air duct 26 is a high temperature resistant heat insulating material, or the annular air duct 26 between the heating unit 23 and the air outlet 5 is a high temperature resistant heat insulating material. This allows the electric control cavity 13 to further isolate the heat in the annular air duct 26.

[0026] Please refer to Figure 3 , Figure 4 and Figure 7 As shown, a shaking head structure (not shown in the figure) is provided at the connection between the support rod 2 and the wind tube 1, and the shaking head structure is located in the electric control cavity 13. The electric control module includes a circuit board 16, such as Figure 3As shown in the figure, the shaking structure includes an up and down shaking motor 7, which is a part of the shaking structure and is located in the electric control cavity 13. The circuit board 16 is provided with a display screen 17 on the side facing the air outlet 4, and the display screen 17 is used to display the fan working status data. The working status data includes the circulating fan air outlet temperature and the timing time. The circuit board 16 is electrically connected to the up and down shaking motor 7, the left and right shaking motor 8, the heating component 11, the wind wheel motor 14 and the display screen 17 respectively.

[0027] Please refer to Figure 3 , Figure 4 and Figure 6 As shown, the heating component 11 is a ring-shaped U-shaped opening facing downward, just avoiding the shaking structure. The middle part is hollowed out and a break 21 is set to avoid the shaking structure, so that the circulation fan structure is arranged tightly and the space utilization rate is improved.

[0028] The heating assembly 11 includes a U-shaped bracket 22, and the bracket 22 is fixed on the inner wall of the annular air duct. The heating unit 23 is an electric heating wire, and the electric heating wire is arranged in a spring-shaped spiral. A plurality of mica sheets 24 are evenly arranged on the side of the bracket 22 facing away from the axis of the wind tube 1. The electric heating wire is pressed against the mica sheet 24 from one end of the bracket 22 to the other end of the bracket 22 and fixed. The plurality of mica sheets 24 press the electric heating wire, so that the electric heating wire is separated from the bracket 22. At the same time, the electric heating wire does not contact the inner shell 27, reducing the heat exchange between the electric heating wire and the inner shell 27. Because in actual application, even if the inner shell 27 uses a heat-insulating material, a part of the heat will enter the electric control cavity 13 through heat exchange. The electric heating wire does not contact the inner shell 27, which can minimize the influence of such heat exchange on the temperature in the electric control cavity 13, making the circulation fan safer during use.

[0029] The bracket 22 is provided with 1 to 3 coils of spring-shaped electric heating wires arranged side by side along the blowing direction. In this embodiment, 2 coils of electric heating wires are used to perform heat exchange on the air in the annular air duct 26 .

[0030] Please refer to Figure 5 As shown, an end surface of the electric control cavity 13 close to the air inlet end 5 is provided with a mounting groove 18 recessed toward the air outlet end 4, the wind wheel motor 14 is installed in the mounting groove 18, a fixing frame 19 is provided on one side of the wind wheel motor 14, the fixing frame 19 is fixedly connected to the wind wheel motor 14, and the fixing frame 19 is fixedly installed at the opening of the mounting groove 18. The wind wheel motor 14 is more convenient to disassemble and replace, and the groove wall of the mounting groove 18 can also effectively isolate the heat of the heating component 11.

[0031] Please refer to Figure 1 As shown, the outer shell 12 is provided with an air inlet grille 25 at the air inlet end 5 to prevent debris from entering the air duct 1 and getting stuck on the wind wheel 15 .

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling and heating circulation fan with a built-in heating component, comprising an axially blowing air cylinder and a support rod for supporting the air cylinder, and also comprising a base for fixing the support rod, wherein one axial end of the air cylinder is an air outlet end, and the other end is an air inlet end, and is characterized in that: The air duct comprises: The inner shell and the outer shell are connected to each other, an annular air duct is arranged in the inner shell, an air outlet and an air inlet are arranged at both ends of the annular air duct, the air inlet is located at the air inlet end of the air duct, and the air outlet is located at the air outlet end of the air duct; A cylindrical electric control cavity is arranged in the inner wall of the annular air duct, the electric control cavity is not connected with the annular air duct, and an electric control module for controlling the cooling and heating circulation fan is arranged in the electric control cavity, the electric control module includes a circuit board, and the circuit board is fixed on the inner wall of the electric control cavity and close to the position of the air outlet; A wind wheel motor is provided near the air inlet end of the electronically controlled cavity, and a wind wheel is connected to the wind wheel motor outside the electronically controlled cavity, and the wind wheel is close to the air inlet. A heating component is provided in the annular air duct, and the heating component includes a heating unit. When viewed from the axial direction of the annular air duct, the heating unit is located in the middle position of the annular air duct, and when viewed from the lateral direction of the annular air duct, the heating unit is located between the position of the circuit board and the position of the wind wheel motor.

2. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: The electric control cavity is also provided with an oscillating head structure, which is arranged at the connection between the air duct and the support rod. The heating component is a U-shaped ring structure, and the middle part is hollowed out to avoid the oscillating head structure.

3. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: The heating component includes a U-shaped bracket, the heating unit is a heating wire, the heating wire is arranged in a spring-shaped spiral, the bracket is evenly provided with a plurality of mica sheets, the heating wire is pressed against the mica sheets in sequence from one end of the bracket to the other end of the bracket and fixed, and a plurality of mica sheets press the heating wire so that the heating wire is separated from the bracket.

4. The cooling and heating circulation fan with built-in heating component as claimed in claim 3, characterized in that: The bracket is provided with 1 to 3 circles of the heating wire in parallel along the blowing direction.

5. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: An end face of the electric control cavity close to the air inlet end is provided with a mounting groove recessed toward the air outlet end, and the wind wheel motor is installed in the mounting groove. A fixing frame is provided on one side of the wind wheel motor, and the fixing frame is fixedly connected to the wind wheel motor. The fixing frame is fixedly installed at the opening of the mounting groove.

6. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: The outer shell is provided with an air inlet grille at the air inlet end.

7. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: A display screen is provided on one side of the circuit board facing the air outlet end, and the circuit board is electrically connected to the heating component, the wind wheel motor and the display screen respectively.

8. The cooling and heating circulation fan with built-in heating component as claimed in claim 1, characterized in that: A connecting piece is provided at the upper end of the support rod, and the connecting piece is hinged to the wind tube. An up and down shaking motor and an up and down shaking assembly are provided in the wind tube. The up and down shaking motor is located in the electric control cavity, and the up and down shaking assembly is located between the up and down shaking motor and the connecting piece. The up and down shaking motor is connected to the connecting piece through the up and down shaking assembly, and power is provided to the up and down shaking assembly so that the wind tube can rotate in the up and down directions. A left and right shaking motor and a left and right shaking assembly are provided inside the support rod. The left and right shaking motor is connected to the connecting piece through the left and right shaking assembly, and power is provided to the left and right shaking assembly so that the connecting piece and the wind tube can rotate around the axis of the support rod.

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