Cooling and heating fan

Abstract

This invention relates to a cooling and heating fan, comprising: a base; a main housing mounted on the base, the main housing having a receiving cavity and an exhaust port connecting the receiving cavity to the external environment; and a heating element mounted on the base and housed within the receiving cavity; wherein the heating element and the exhaust port are rotatable relative to each other about a rotation axis, so that the heating element and the exhaust port are directly opposite each other or offset. This cooling and heating fan eliminates the need for two exhaust ports, and because the heating element and the exhaust port are rotatable relative to each other about the central axis of the base, and one side of the outer wall of the heating element is tightly fitted to a portion of the inner wall of the main housing, the circumferential space of the main housing is fully utilized, making the overall structure of the cooling and heating fan more compact and reducing its overall volume.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a cooling and heating fan. Background Technology

[0002] With social progress and the improvement of science and technology, people's requirements for living environment have gradually increased. Fans, as a widely used household appliance, can bring coolness to people in the hot summer. However, in the cold winter, fans cannot be used and remain idle, occupying living space and causing inconvenience to people's lives. Based on this, a cooling and heating fan that can deliver both hot and cold air has emerged.

[0003] To achieve both hot and cold air output, most existing fan coolers / heaters typically have two air outlets on their casing. One outlet outputs cold air, while the other houses the heating element, which heats the airflow to produce hot air. However, this dual-outlet configuration complicates the fan's structure and increases its size to achieve sufficient airflow area, causing inconvenience in production, transportation, use, and storage. Summary of the Invention

[0004] Therefore, it is necessary to provide a smaller-sized cooling and heating fan to address the issue of the large size of traditional cooling and heating fans.

[0005] A cooling and heating fan, characterized in that it comprises:

[0006] Base;

[0007] The main housing, mounted on the base, has a receiving cavity and an exhaust vent connecting the receiving cavity to the external environment; and

[0008] A heating assembly is mounted on the base and housed within the receiving cavity, with one side surface of the heating assembly adhering to the inner wall of the main housing.

[0009] The heating component and the exhaust vent can rotate relative to each other around a rotation axis so that the heating component and the exhaust vent are directly opposite each other or offset.

[0010] In the aforementioned hot and cold air fan, when the heating element and the exhaust vent are directly opposite each other, the airflow from the outlet duct passes through the heating element and is then discharged through the exhaust vent. The heating element heats the airflow passing through it, resulting in a higher temperature exhaust airflow, thus providing a heating effect. Conversely, when the heating element and the exhaust vent are offset, the airflow from the outlet duct bypasses the heating element and is discharged through the exhaust vent, resulting in exhaust airflow at the same temperature as room temperature, thus providing a cooling effect. This design eliminates the need for two exhaust vents. Furthermore, because the heating element and the exhaust vent can rotate relative to each other around the central axis of the base, and the outer wall of one side of the heating element is tightly fitted to a portion of the inner wall of the main housing, the circumferential space of the main housing is fully utilized, making the overall structure of the hot and cold air fan more compact and reducing its overall size.

[0011] In one embodiment, the surface of the heating component that adheres to the main housing and the surface of the main housing that adheres to the heating component are arc surfaces with the same curvature.

[0012] In one embodiment, the heating assembly has a fan-shaped cross-section in a plane perpendicular to the axis of rotation.

[0013] In one embodiment, the cooling and heating fan further includes a drive assembly, which is kinetically connected to the heating assembly and / or the main housing, wherein one of the heating assembly and the main housing can rotate relative to the other under the drive of the drive assembly.

[0014] In one embodiment, the heating component is provided with a first transmission tooth, and the driving component is provided with a second transmission tooth, wherein the first transmission tooth and the second transmission tooth mesh with each other.

[0015] In one embodiment, the first transmission tooth protrudes from the surface of the heating assembly on the side away from the exhaust port.

[0016] In one embodiment, the drive assembly includes a drive motor and a drive gear connected to the drive motor, the drive gear having the second transmission teeth circumferentially.

[0017] In one embodiment, the heating and cooling fan further includes a drive handle, one end of which is connected to the heating component, and the other end of which can controllably move the heating component.

[0018] In one embodiment, the base is provided with a rotating track, and the main housing or the heating assembly cooperates with the rotating track and moves along the rotating track.

[0019] In one embodiment, the cooling and heating fan further includes a fan wheel, which is mounted on the base and housed within the receiving cavity.

[0020] In one embodiment, the cooling and heating fan further includes an air duct assembly, which is mounted on the base and housed within the receiving cavity, and forms an air outlet duct connecting the impeller and the exhaust port. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a cooling and heating fan according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 The exploded view of the heating and cooling fan shown;

[0023] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the heating and cooling fan when it outputs warm air.

[0024] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the cooling and heating fan when it outputs cold air.

[0025] Figure 5 This is a cross-sectional view of a cooling and heating fan according to another embodiment of the present invention when it outputs warm air;

[0026] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the cooling and heating fan when it outputs cold air. Detailed Implementation

[0027] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a cooling and heating fan 100, which includes a base 10, a main housing 20, a fan wheel 30, an air duct assembly 40, and a heating assembly 50. The main housing 20, the fan wheel 30, and the air duct assembly 40 are all mounted on the base 10. The airflow generated by the rotation of the fan wheel 30 first passes through the air duct assembly 40, and then selectively flows through the heating assembly 50 before flowing out of the main housing 20, thereby outputting cold air or warm air.

[0031] Please continue reading. Figure 1 and Figure 2 The base 10 is a generally circular body of revolution. The base 10 includes a lower surface and an upper surface that are oppositely disposed. The lower surface of the base 10 contacts the placement surface (e.g., the ground), and the upper surface of the base 10 is provided with a circumferentially arranged rotating track 12 for cooperating with the heating assembly 50 or the main housing 20. It is understood that the specific construction of the base 10 is not limited, and the base 10 can be configured with different structures and shapes according to different needs.

[0032] The main housing 20 includes a detachably connected rear cover 21, a front cover 23, and an exhaust plate 25. Both the rear cover 21 and the front cover 23 are arc-shaped plate structures, mounted on the upper surface of the base 10. The rear cover 21, the front cover 23, and the base 10 together form a cylindrical receiving cavity. The rear cover 21 has at least one air inlet connecting the receiving cavity to the external environment. The front cover 23 has an exhaust plate mounting groove 232 connecting the receiving cavity to the external environment. The exhaust plate 25 is detachably embedded in the exhaust plate mounting groove 232, and the exhaust plate 25 has at least one exhaust port 252.

[0033] Both the impeller 30 and the air duct assembly 40 are mounted on the base 10 and housed within the receiving cavity. The impeller 30 is used to generate airflow, while the air duct assembly 40 forms an outlet air duct connecting the impeller 30 and the exhaust port 252, guiding the airflow. Thus, under the action of the impeller 30, outside air forms an airflow that enters the receiving cavity from the air inlet of the rear cover 21, and then is sequentially transported back to the outside environment through the outlet air duct and the exhaust port 252.

[0034] The heating element 50 is a PTC heating element mounted on the base 10 and housed within the receiving cavity, with one side attached to the inner wall of the main housing 20. The heating element 50 and the exhaust port 252 can rotate relative to each other around a rotation axis, so that the heating element 50 and the exhaust port 252 are directly opposite each other or offset. The aforementioned rotation axis is the central axis of the base 10.

[0035] like Figure 3As shown, when the heating element 50 is directly opposite the exhaust vent 252, the airflow from the exhaust duct passes through the heating element 50 and is discharged through the exhaust vent 252. The heating element 50 can heat the airflow passing through it, so the airflow discharged from the exhaust vent 252 has a high temperature, thus playing a heating role.

[0036] like Figure 4 As shown, when the heating element 50 and the exhaust vent 252 are misaligned, the airflow in the outlet duct will not flow through the heating element 50 but will be discharged through the exhaust vent 252. Therefore, the temperature of the airflow discharged from the exhaust vent 252 is the same as the room temperature, thus achieving a cooling effect. Since the heating element 50 and the exhaust vent 252 can rotate relative to each other around the central axis of the base 10, and the outer side wall of one side of the heating element 50 is tightly attached to part of the inner side wall of the main housing 20, the circumferential space of the main housing 20 is fully utilized, making the overall structure of the heating and cooling fan 100 more compact and reducing the overall volume of the heating and cooling fan 100.

[0037] like Figure 3 and Figure 4 As shown, specifically, the cross-section of the heating component 50 on the plane perpendicular to the rotation axis is fan-shaped, and the surface of the heating component 50 that is in contact with the inner wall of the main housing 20 and the surface of the main housing 20 that is in contact with the heating component 50 are arc surfaces with the same curvature. Therefore, the outer wall of the heating component 50 can be tightly in contact with the inner wall of the main housing 20.

[0038] like Figure 2 , Figure 3 and Figure 4 As shown, the hot and cold fan 100 also includes a drive assembly 60. The heating assembly 50 or the main housing 20 is connected to the drive assembly 60 and cooperates with the rotating track 12. One of the heating assembly 50 and the main housing 20 can rotate relative to the other one along the rotating track 12 under the drive of the drive assembly 60, thereby changing the relative position of the heating assembly 50 and the exhaust port 252.

[0039] In some embodiments, the main housing 20 is fixedly mounted on the base 10, and the drive assembly 60 is drively connected to the heating assembly 50. The heating assembly 50 engages with the rotating track 12 and can move along the rotating track 12. A plurality of first drive teeth 52 protrude from the surface of the heating assembly 50 away from the exhaust port 252, and the plurality of first drive teeth 52 are arranged circumferentially around the heating assembly 50. The drive assembly 60 includes a drive motor and a drive gear connected to the drive motor. The drive gear has a plurality of second drive teeth circumferentially, and the first drive teeth 52 mesh with the second drive teeth. Thus, the drive motor can drive the drive gear to rotate, thereby causing the heating assembly 50 to rotate relative to the main housing 20 under the guidance of the rotating track 12.

[0040] It is understood that the specific structure of the drive assembly 60 is not limited to this. For example, in some embodiments, the drive assembly 60 includes a drive motor and a linkage assembly connected to the drive motor. The linkage assembly drives the drive motor and the heating assembly 50, and the drive motor can drive the linkage assembly to rotate the heating assembly 50.

[0041] like Figure 5 and Figure 6 As shown, in some embodiments, the heating component 50 is fixedly mounted on the base 10, the main housing 20 cooperates with the rotating track 12 and can move along the rotating track 12, and the drive component 50 is connected to the heating component 50 and the main housing 20 respectively. In this way, the drive motor of the drive component 50 drives the drive gear to rotate. Since the heating component 50 is fixed relative to the base 10, the drive gear itself moves along the heating component 50, thereby driving the main housing 20 connected to it to rotate relative to the heating component 50 along the rotating track 12, ultimately making the heating component 50 directly opposite or misaligned with the exhaust port 252.

[0042] In some embodiments, the heating and cooling fan 100 also includes a drive handle (not shown), one end of which is connected to the heating element 50, and the other end of which can controllably drive the heating element 50 to rotate. In this way, the user can manually operate the drive handle to drive the heating element 50 to rotate as needed, so that the heating element 50 is aligned with or misaligned with the exhaust vent 252.

[0043] The aforementioned hot and cold fan 100, since the heating component 50 and the main housing 20 rotate relative to each other around the central axis of the base 10, and the shape of the heating component 50 matches the shape of the inner sidewall of the main housing 20 to fit tightly against the main housing 20, does not need to be provided with two air outlets, nor does it need to reserve a large storage space for the heating component 50. Therefore, the overall structure of the hot and cold fan 100 is more compact, and the overall volume of the hot and cold fan 100 is reduced.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0045] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A cool and warm fan (100) characterized by, The cold and warm fan (100) comprises a base (10), a main shell (20) mounted on the base (10), wherein the main shell (20) is provided with a receiving cavity and an exhaust port (252) communicating with the receiving cavity and an external environment, and a heating assembly (50) mounted on the base (10) and accommodated in the receiving cavity, wherein one side surface of the heating assembly (50) is attached to an inner side wall of the main shell (20), and the heating assembly (50) is provided with first transmission teeth (52). The cold and warm fan (100) further comprises a driving handle, one end of the driving handle is connected to the heating assembly (50), and the other end of the driving handle can controllably drive the heating assembly (50) to move. The base (10) is provided with a rotating track (12), and the main shell (20) or the heating assembly (50) is matched with the rotating track (12) and moves along the rotating track (12). The cold and warm fan (100) further comprises a wind wheel (30) mounted on the base (10) and accommodated in the receiving cavity. The cold and warm fan (100) further comprises an air duct assembly (40) mounted on the base (10) and accommodated in the receiving cavity, and the air duct assembly (40) forms an air outlet air duct communicating with the wind wheel (30) and the exhaust port (252).

2. The cooling and heating fan (100) according to claim 1, characterized in that The heating assembly (50) is provided with the first transmission teeth (52) and the second transmission teeth, the first transmission teeth (52) and the second transmission teeth are mutually engaged, and the heating assembly (50) can rotate relative to the main shell (20) under the driving of the driving assembly (60).

3. The cooling and heating fan (100) as claimed in claim 1, wherein, The heating assembly (50) and the exhaust port (252) can rotate relative to a rotating axis to make the heating assembly (50) and the exhaust port (252) face each other or be staggered.

4. The cooling and heating fan (100) as claimed in claim 1, wherein, The heating assembly (50) has a fan ring shape in a cross section in a plane perpendicular to the rotating axis.

5. The cooling and heating fan (100) as claimed in claim 1, wherein, The first transmission teeth are protruded on one side surface of the heating assembly (50) away from the exhaust port (252).

6. The cooling and heating fan (100) as claimed in claim 1, wherein, The driving assembly (60) comprises a driving motor and a driving gear connected to the driving motor, and the driving gear is provided with the second transmission teeth in a circumferential direction.

7. The cooling and heating fan (100) as claimed in claim 1, wherein, The cold and warm fan (100) further comprises a driving handle, one end of the driving handle is connected to the heating assembly (50), and the other end of the driving handle can controllably drive the heating assembly (50) to move.

8. The cooling and heating fan (100) according to claim 7, characterized in that The base (10) is provided with a rotating track (12), and the main shell (20) or the heating assembly (50) is matched with the rotating track (12) and moves along the rotating track (12). The cold and warm fan (100) further comprises a wind wheel (30) mounted on the base (10) and accommodated in the receiving cavity. The cold and warm fan (100) further comprises an air duct assembly (40) mounted on the base (10) and accommodated in the receiving cavity, and the air duct assembly (40) forms an air outlet air duct communicating with the wind wheel (30) and the exhaust port (252).

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