CN111102222A

CN111102222A - Cold and warm fan

Info

Publication number: CN111102222A
Application number: CN201911419348.3A
Authority: CN
Inventors: 彭必成; 陈正超; 梁健华; 林达浩; 徐余良; 陈志聪; 覃学居
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-05-05

Abstract

The invention relates to a cooling and heating fan, comprising: the main shell is provided with an accommodating cavity and an air outlet which is communicated with the accommodating cavity and the external environment; the wind wheel is rotatably arranged in the accommodating cavity; the heating component is arranged in the accommodating cavity and can rotate around a rotating axis so as to be opposite to or staggered with the air outlet; and the hydraulic driving assembly is at least partially arranged in the accommodating cavity and is in transmission connection with the heating assembly so as to drive the heating assembly to rotate around the rotation axis. Above-mentioned cold-warm fan, the mode that the accessible changed heating element's position changes the temperature of the air current of output air exit, consequently only need set up an air exit on the main casing body, compare in the cold-warm fan who has seted up two air exits in prior art, and the cold-warm fan who only sets up an air exit can guarantee that the air exit has great opening area when having less volume, and then has great air-out area to improve refrigeration or heat the effect.

Description

Cold and warm fan

Technical Field

The invention relates to the technical field of household appliances, in particular to a cooling and heating fan.

Background

Along with the improvement of social progress and the improvement of scientific and technical level, the requirements of people on living environment are gradually improved, and the fan serving as a household appliance widely applied to life can bring coolness to people in hot summer. However, in cold winter, the fan cannot be used and is in an idle state, so that the fan occupies a living space and brings inconvenience to the life of people. Therefore, the cooling and heating fan which can simultaneously realize two functions of hot air conveying and cold air conveying is produced.

In order to realize the functions of outputting hot air and outputting cold air, most of the existing cooling and heating fans are generally provided with two air outlets on a shell, wherein one air outlet is used for outputting cold air, a heating body is arranged at the other air outlet, and air flow passes through the heating body and then is heated to raise temperature so as to output hot air. However, the arrangement of the two air outlets makes the structure of the cooling and heating fan more complicated, the volume of the cooling and heating fan is correspondingly increased to reach a sufficient air outlet area, and inconvenience is brought to production, transportation, use and storage of the cooling and heating fan.

Disclosure of Invention

Therefore, it is necessary to provide a cooling and heating fan with a simple structure and a small volume without providing two air outlets, aiming at the problems of complicated structure and large volume of the cooling and heating fan due to the provision of two air outlets.

A cooling and heating fan comprising:

the main shell is provided with an accommodating cavity and an air outlet which is communicated with the accommodating cavity and the external environment;

the wind wheel is rotatably arranged in the accommodating cavity;

the heating assembly is arranged in the accommodating cavity and can rotate around a rotating axis so as to be opposite to or staggered with the air outlet; and

and the hydraulic driving assembly is at least partially arranged in the accommodating cavity and is in transmission connection with the heating assembly so as to drive the heating assembly to rotate around the rotating axis.

Above-mentioned cold-warm fan, the mode that the accessible changed heating element's position changes the temperature of the air current of output air exit, consequently only need set up an air exit on the main casing body, compare in the cold-warm fan who has seted up two air exits in prior art, and the cold-warm fan who only sets up an air exit can guarantee that the air exit has great opening area when having less volume, and then has great air-out area to improve refrigeration or heat the effect.

In one embodiment, the hydraulic driving assembly comprises a hydraulic cylinder, the hydraulic cylinder comprises a hydraulic cylinder main body and a hydraulic rod, one end of the hydraulic rod is mounted on the hydraulic cylinder main body, the other end of the hydraulic rod is connected to the heating assembly in a transmission manner, and the hydraulic rod can stretch and retract under the driving of the hydraulic cylinder main body to drive the heating assembly to rotate around the rotation axis.

In one embodiment, the extension and retraction direction of the hydraulic rod is parallel or perpendicular to the rotation axis.

In one embodiment, the hydraulic drive assembly further comprises a hydraulic pump and a directional control valve, the hydraulic pump, the directional control valve, and the hydraulic cylinder being in communication via a conduit.

In one embodiment, the hydraulic drive assembly further comprises a reversing handle, one end of the reversing handle is connected to the reversing valve, the other end of the reversing handle extends out of the accommodating cavity, and the reversing handle can controllably change the flow direction of the reversing valve.

In one embodiment, the cooling and heating fan further comprises a transmission assembly, and the hydraulic rod and the heating assembly are connected with each other through the transmission assembly.

In one embodiment, the transmission assembly comprises a transmission link, one end of the transmission link is rotatably connected with the hydraulic rod, and the other end of the transmission link is rotatably connected with the heating assembly.

In one embodiment, the cooling and heating fan further comprises a guide structure, the heating assembly is limited on the guide structure, and the guide structure is used for guiding the heating assembly to rotate around the rotation axis.

In one embodiment, the guide structure comprises a guide groove arranged on the wall of the accommodating cavity, the heating assembly comprises a heating body and a guide piece arranged on the heating body, the heating body can be opposite to or staggered with the air outlet, and the guide piece is limited in the guide groove and can move along the guide groove.

In one embodiment, the heating assembly comprises two sets of the guide members, and the two sets of the guide members are arranged at intervals in the direction of the rotation axis; the inner wall of the accommodating cavity is provided with two guide grooves which are arranged at intervals in the direction of the rotation axis, and the two groups of guide pieces are respectively limited in the two guide grooves.

In one embodiment, a connecting column is convexly arranged on the cavity wall of the accommodating cavity, the central axis of the connecting column is coincident with the rotating axis, the guide structure comprises a guide bracket rotatably mounted on the connecting column, and the heating assembly is mounted on the guide bracket.

Drawings

Fig. 1 is a schematic structural diagram of a cooling and heating fan according to an embodiment of the present invention;

fig. 2 is a partial structural schematic view of the cooling and heating fan shown in fig. 1;

fig. 3 is a cross-sectional view of the cooling and heating fan shown in fig. 1;

FIG. 4 is a schematic diagram of the operation of the transmission assembly of the cooling and heating fan according to another embodiment;

fig. 5 is a schematic structural diagram of a guiding structure of a cooling and heating fan according to another embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, in a cooling and heating fan 100 according to an embodiment of the present invention, the cooling and heating fan 100 can be switched between a cooling mode in which cold air is output and a heating mode in which warm air is output. The cooling and heating fan 100 includes a base 10, a main housing 20, a wind wheel 30, a heating assembly 40, and a hydraulic driving assembly 50.

The base 10 is a substantially circular-cross-section solid of revolution, and the base 10 can be supported on a supporting surface (e.g., the ground) for supporting. It is understood that the specific shape of the base 10 is not limited, and the base 10 can be configured in different structures and shapes according to different requirements.

Main casing body 20 is roughly cylindric shell structure, and main casing body 20 is equipped with and holds the chamber, and main casing body 20's lateral wall is seted up the intercommunication and is held the chamber and the air intake of external environment and the intercommunication and hold chamber and external environment's air exit 21. It will be appreciated that the shape of the main housing 20 is not limited and may be provided in different shapes as desired.

The wind wheel 30 is rotatably installed in the accommodating cavity, and the central axis of the wind wheel 30 extends in the vertical direction. Therefore, the outside air can form an air flow under the action of the wind wheel 30 and enter the accommodating cavity from the air inlet, and then returns to the outside environment again through the air outlet 21 under the action of the wind wheel 30.

The heating assembly 40 is a PTC heating body arranged in the accommodating cavity, the hydraulic driving assembly 50 is at least partially arranged in the accommodating cavity, the hydraulic driving assembly 50 is in transmission connection with the heating assembly 40, and the heating assembly 40 can rotate around a rotation axis under the driving of the hydraulic driving assembly 50 so as to be opposite to or staggered with the air outlet 21. Wherein the above mentioned axis of rotation extends in a vertical direction and coincides with the central axis of the wind rotor 30.

When the heating element 40 is aligned with the air outlet 21, the air flow in the air outlet duct flows through the heating element 40 and then is exhausted through the air outlet 21, and the heating element 40 can heat the air flow flowing through the heating element 40, so that the air flow exhausted from the air outlet 21 has higher temperature, and the heating function is achieved. When the heating assembly 40 is staggered with the air outlet 21, the air flow of the air outlet duct can be directly discharged through the air outlet 21 without flowing through the heating assembly 40, so that the temperature of the air flow discharged from the air outlet 21 is the same as the room temperature, and the cooling effect is achieved.

Like this, the temperature of the air current of output air exit 21 is changed to the mode that the accessible changes the position of heating element 40, consequently only needs to set up an air exit 21 on main casing body 20, compares in the changes in temperature fan 100 that has two air exits 21 of opening in prior art, and changes in temperature fan 100 that only sets up an air exit 21 can guarantee that air exit 21 has great opening area when having less volume, and then has great air-out area to improve refrigeration or heating effect.

Referring to fig. 2 and 3, the hydraulic drive assembly 50 includes a hydraulic pump 52, a directional control valve 54, a hydraulic cylinder 58, and a directional control handle 56. The hydraulic pump 52, the selector valve 54 and the hydraulic cylinder 58 are connected by pipes through which hydraulic oil can flow. The hydraulic cylinder 58 comprises a cylinder body 581 and a hydraulic rod 583, one end of the hydraulic rod 583 is installed on the cylinder body 581, and the other end of the hydraulic rod 583 is connected with the heating assembly 40 in a transmission manner. The hydraulic rod 583 can be driven by the hydraulic cylinder body 581 to extend and retract so as to drive the heating assembly 40 to rotate around the rotation axis, and the extending and retracting direction of the hydraulic rod 583 is parallel to or perpendicular to the rotation axis. The direction changing handle 56 is connected to the direction changing valve 54 at one end, and the other end of the direction changing handle 56 extends out of the accommodating cavity, and the direction changing handle 56 can control the flow direction of the direction changing valve 54 in a controlled manner.

In this way, the hydraulic pump 52 supplies hydraulic oil to the cylinder body 581 through the direction switching valve 54, and the hydraulic oil entering the cylinder body 581 pushes the hydraulic rod 583 to extend and retract, thereby outputting power to the heating assembly 40. In the process, the user can change the direction of the liquid flow of the direction-changing valve 54 by manipulating the direction-changing handle 56, thereby changing the moving direction of the hydraulic lever 583.

Specifically, when the cooling and heating fan 100 is switched from the cooling mode to the heating mode, the user pulls the direction-changing handle 56 in one direction, the direction-changing handle 56 changes the direction of the flow of the hydraulic oil through the direction-changing valve 54, and the direction of the hydraulic oil entering the hydraulic cylinder body 581 is changed, so as to change the movement direction of the hydraulic rod 583 to move the heating assembly 40. When the cooling/heating fan 100 is switched from the heating mode to the cooling mode, the user pulls the direction-changing handle 56 in the other direction, the direction-changing handle 56 drives the direction-changing valve 54 to change the direction of the fluid flow, so as to change the direction of the hydraulic oil entering the hydraulic cylinder body 581, and finally change the movement direction of the hydraulic rod 583 to drive the heating assembly 40 to move.

Referring to fig. 2 and fig. 3, the cooling and heating fan 100 further includes a transmission assembly, wherein the hydraulic rod 583 of the hydraulic cylinder 58 is connected to the heating assembly 40 through the transmission assembly, and the hydraulic rod 583 drives the heating assembly 40 to rotate through the transmission assembly.

Specifically, in one embodiment, the extension and retraction directions of the hydraulic rod 583 of the hydraulic cylinder 58 are perpendicular to the rotation axis. The transmission assembly comprises a transmission link 61, one end of the transmission link 61 is rotatably connected with the hydraulic rod 583, and the other end of the transmission link 61 is rotatably connected with the heating assembly 40. Thus, when the hydraulic rod 583 extends and retracts, the transmission link 61 is driven to rotate, and the heating assembly 40 is driven to rotate.

It is to be understood that the specific configuration of the driving assembly is not limited, and the driving assembly may also be a multi-link driving mechanism 63 including a plurality of links, thereby increasing the movement stability of the heating assembly 40. As shown in fig. 4, the hydraulic rod 583 of the hydraulic cylinder 58 extends and retracts in a direction parallel to the rotation axis, the multi-link transmission mechanism 63 includes a first link 632, a second link 634, and a third link 636, one end of the first link 632 is hinged to the hydraulic rod 583, one end of the second link 634 is hinged to the heating module 40, one end of the third link 636 is hinged to the main housing 20, and the other ends of the first link 632, the second link 634, and the third link 636 are rotatably connected to each other. Thus, the second link 634 can drive the heating element 40 to rotate under the driving of the first link 632 and the third link 636.

In some embodiments, the cooling and heating fan 100 further includes a guide structure for guiding the heating assembly 40 to rotate about the rotation axis, thereby ensuring that the heating assembly 40 can be accurately aligned with the air outlet 21 or completely misaligned with the air outlet 21.

Specifically, the guiding structure includes two guiding grooves 72 opened on the cavity wall of the accommodating cavity, the two guiding grooves 72 are arranged at intervals in the direction of the rotation axis of the heating assembly 40, and each guiding groove 72 extends along the circumferential direction of the accommodating cavity around the rotation axis of the heating assembly 40. The heating unit 40 can be moved along the two guide grooves 72 so as to be accurately aligned with the exhaust port 21 or be completely misaligned with the exhaust port 21.

The heating unit 40 includes a heating body 41 and a guide 43. The heating body 41 is a flat plate-shaped structure with a rectangular cross section, two groups of guide members 43 are arranged at two ends of the heating body 41 at intervals in the direction of the rotation axis of the heating assembly 40, and each group of guide members 43 comprises two guide members 43 arranged at intervals in the extending direction of the guide groove 72. Thus, each set of guide members 43 is correspondingly limited to one guide groove 72 and can move along the guide groove 72. It is understood that the number of the guide grooves 72 and the guide members 43 is not limited and may be set as desired.

As shown in fig. 5, in particular, in another embodiment, the main housing 20 is provided with a connecting column 23 having a central axis coinciding with the rotation axis of the heating assembly 40, the guide structure includes a guide bracket 74 rotatably mounted to the connecting column 23 about the rotation axis, and the heating assembly 40 is mounted to the guide bracket 74 to follow the guide bracket 74 to rotate about the connecting column 23. In this manner, the guide bracket 74 defines a moving path of the heating unit 40 such that the heating unit 40 can rotate only about the rotation axis, thereby accurately aligning the heating unit 40 with the discharge outlet 21 or completely misaligning the heating unit 40 with the discharge outlet 21.

In the cooling and heating fan 100, a user can drive the heating assembly 40 to rotate relative to the air outlets 21 by only pulling the handle 56, so that the cooling and heating fan 100 can be conveniently switched between the heating mode and the cooling mode without providing two air outlets 21. Moreover, the hydraulic driving assembly 50 has high power density and high control precision, and can accurately control the position of the heating assembly 40, thereby ensuring good heating and cooling effects.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cooling and heating fan is characterized by comprising:

the main shell (20) is provided with an accommodating cavity and an air outlet (21) for communicating the accommodating cavity with the external environment;

the wind wheel (30) is rotatably arranged in the accommodating cavity;

the heating component (40) is arranged in the accommodating cavity, and the heating component (40) can rotate around a rotation axis to be opposite to or staggered with the air outlet (21); and

a hydraulic drive assembly (50) at least partially mounted in the receiving cavity, wherein the hydraulic drive assembly (50) is in transmission connection with the heating assembly (40) to drive the heating assembly (40) to rotate around the rotation axis.

2. The cooling and heating fan according to claim 1, wherein the hydraulic drive assembly (50) comprises a hydraulic cylinder (58), the hydraulic cylinder (58) comprises a hydraulic cylinder body (581) and a hydraulic rod (583), one end of the hydraulic rod (583) is mounted on the hydraulic cylinder body (581), the other end of the hydraulic rod (583) is in transmission connection with the heating assembly (40), and the hydraulic rod (583) can be driven by the hydraulic cylinder body (581) to extend and retract so as to drive the heating assembly (40) to rotate around the rotation axis.

3. Cooling and heating fan according to claim 2, characterised in that the extension and retraction direction of the hydraulic rod (583) is parallel or perpendicular to the axis of rotation.

4. The cooling-heating fan according to claim 2, characterized in that the hydraulic drive assembly (50) further comprises a hydraulic pump (52) and a direction change valve (54), the hydraulic pump (52), the direction change valve (54) and the hydraulic cylinder (58) being in communication through a duct.

5. The cooling-heating fan according to claim 4, characterized in that the hydraulic drive assembly (50) further comprises a reversing handle (56), one end of the reversing handle (56) is connected to the reversing valve (54), the other end of the reversing handle (56) extends out of the accommodating cavity, and the reversing handle (56) can controllably change the flow direction of the reversing valve (54).

6. Cooling and heating fan according to claim 2, characterized in that it further comprises a transmission assembly by which the hydraulic rod (583) and the heating assembly (40) are connected to each other.

7. The cooling-heating fan according to claim 6, wherein the transmission assembly comprises a transmission link (60), one end of the transmission link (60) is rotatably connected with the hydraulic rod (583), and the other end of the transmission link (60) is rotatably connected with the heating assembly (40).

8. A cooling and heating fan according to claim 1, further comprising a guiding structure, wherein the heating assembly (40) is limited to the guiding structure, and the guiding structure is used for guiding the heating assembly (40) to rotate around the rotation axis.

9. The cooling and heating fan according to claim 8, wherein the guiding structure comprises a guiding groove (72) formed in a wall of the accommodating cavity, the heating assembly (40) comprises a heating body (41) and a guiding element (43) arranged on the heating body (41), the heating body (41) can be opposite to or staggered with the air outlet (21), and the guiding element (43) is limited in the guiding groove (72) and can move along the guiding groove (72).

10. A cooling and heating fan according to claim 9, characterized in that the heating assembly (40) comprises two sets of the guides (43), the two sets of the guides (43) being arranged at intervals in the direction of the rotation axis; two guide grooves (72) are formed in the inner wall of the accommodating cavity, the two guide grooves (72) are arranged in the direction of the rotation axis at intervals, and the two groups of guide pieces (43) are limited in the two guide grooves (72) respectively.

11. The cooling-heating fan according to claim 8, characterized in that a connecting column (23) is convexly arranged on the wall of the accommodating cavity, the central axis of the connecting column (23) is coincident with the rotation axis, the guiding structure comprises a guiding bracket (74) rotatably mounted on the connecting column (23), and the heating assembly (40) is mounted on the guiding bracket (74).