Cooling and heating fan

Abstract

The utility model discloses a cooling and heating fan, which relates to the technical field of fans and comprises a shell, and an air duct is arranged in the shell. The fan blades are rotatably arranged in the air duct, a first station and a second station are arranged in the shell, the first station is located outside the air outlet range of the air duct, and the second station is located in the air outlet range of the air duct; a heating assembly; the driving assembly is arranged in the shell; and the transmission part can be bent, the output end of the driving assembly is connected with the heating assembly through the transmission part, and the driving assembly can drive the heating assembly to move towards the first station so that the transmission part can be bent, and the part, away from the heating assembly, of the transmission part can move in the direction not parallel to the radial direction of the shell. The moving direction of the transmission part in the process of driving the heating element to move is not parallel to the radial direction of the shell, so that the shell does not need to reserve more radial space for the transmission part to move, the overall size of the cooling and heating fan is reduced, and the manufacturing cost of the cooling and heating fan is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a cold and warm fan. BACKGROUND

[0002] The cold and warm fan is a fan with heating function, which can meet the demand of blowing hot air in winter. The cold and warm fan usually comprises a shell, a heating element and a driving assembly. The driving assembly can drive the heating element to move away from the air duct along the radial direction of the shell, so that the heating element does not block the air duct, thereby ensuring that the heating element does not affect the blowing effect in the normal blowing mode. In the prior art, the driving assembly comprises a gear and a first gear rack which are engaged with each other. The first gear rack is parallel to the radial direction of the shell. The gear is in transmission connection with the heating element through the first gear rack. The rotation of the gear drives the first gear rack to move along the radial direction of the shell, so that the first gear rack drives the heating element to move along the radial direction of the shell and away from the air duct. In order to ensure that the first gear rack has enough space to move in the radial direction of the shell, the radial dimension of the shell is usually designed to be relatively large, which will make the overall size of the cold and warm fan larger, thereby resulting in high manufacturing cost of the cold and warm fan. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a cold and warm fan. The overall size of the cold and warm fan is small, which is conducive to reducing the manufacturing cost of the cold and warm fan.

[0004] According to the cold and warm fan of the utility model embodiment, the cold and warm fan comprises a shell, the shell has an air duct inside; a fan blade is rotatably arranged in the air duct, the shell has a first station and a second station inside, the first station is outside the air outlet range of the air duct, and the second station is inside the air outlet range of the air duct; a heating assembly is arranged in the shell, the heating assembly is configured to be movable in the shell, so that the heating assembly can be moved to the first station or the second station; a driving assembly is arranged in the shell; a transmission member is bendable, the output end of the driving assembly is connected with the heating assembly through the transmission member, the driving assembly can drive the heating assembly to move towards the first station, so that the transmission member can be bent, and the part of the transmission member away from the heating assembly moves towards the direction not parallel to the radial direction of the shell.

[0005] At least has the following beneficial effects:

[0006] The transmission member can be bent. After the user turns off the heating mode, the driving assembly drives the heating assembly to move to the first working position through the transmission member. In the process of moving of the heating assembly towards the first working position, the transmission member starts to be bent, and the part of the transmission member away from the heating assembly starts to move in a direction not parallel to the radial direction of the shell. Under the transmission of the transmission member, the heating assembly can move to the first working position, so as to ensure that the heating assembly does not affect the blowing effect. In the process of moving of the heating element, the moving direction of the part of the transmission member away from the heating assembly is not parallel to the radial direction of the shell, so that the shell does not need to leave more radial space for the movement of the transmission member, thereby enabling the radial size of the shell to be designed to be smaller, so as to reduce the overall size of the cooling and heating fan, which is beneficial to reduce the manufacturing cost of the cooling and heating fan.

[0007] According to the cooling and heating fan, the driving assembly comprises a first rotary driving member and a gear, the gear is rotatably arranged in the shell, the transmission member comprises a plurality of first racks which are sequentially hinged, the first racks at two ends of the transmission member are a first rack at a first end and a first rack at a second end respectively, the first rack at the first end is connected with the heating assembly, the gear can be engaged with at least one of the first racks, and the first rotary driving member is used for driving the gear to rotate, so that the first rack away from the heating assembly can move in a direction not parallel to the radial direction of the shell, and another part of the first rack close to the heating assembly can pull the heating assembly to move towards the first working position.

[0008] According to the cooling and heating fan, the side, away from the gear, of each of the plurality of first racks is provided with a limiting protrusion, the limiting protrusion can limit the relative rotation of two adjacent first racks, so that another part of the first rack close to the heating assembly remains straight, and the first rotary driving member is used for driving the gear to rotate, so that another part of the first rack close to the heating assembly can push the heating assembly to move towards the second working position.

[0009] According to the cooling and heating fan, the transmission member further comprises a second rack, the second rack is parallel to the radial direction of the shell, the second rack is connected with the heating assembly, one end of the second rack is hinged with the first rack at the first end, the second rack can be engaged with the gear, and the limiting protrusion on the first rack at the first end can abut against the second rack, so as to limit the relative rotation of the second rack and the first rack at the first end.

[0010] According to the cooling and heating fan, the linear guide groove and the arc-shaped guide groove are formed in the shell and are communicated with each other, the linear guide groove is parallel to the radial direction of the shell, the first racks are movable in the linear guide groove and the arc-shaped guide groove, and the second rack is movable in the linear guide groove.

[0011] According to the cooling and heating fan, the auxiliary assembly is arranged in the shell, the output end of the auxiliary assembly is connected with the first racks, and the auxiliary assembly can provide tension to the first racks, so that the tension is kept between any two adjacent first racks.

[0012] According to the cooling and heating fan, the auxiliary assembly comprises an auxiliary belt, a winding wheel and a second rotating driving element, the winding wheel is rotatably connected in the shell, the output end of the second rotating driving element is connected with the winding wheel, one end of the auxiliary belt is connected with the first racks, the other end of the auxiliary belt is connected with the winding wheel, the auxiliary belt can be wound on the winding wheel, and the second rotating driving element is used for driving the winding wheel to rotate, so that the auxiliary belt wound out of the winding wheel can be taut, and the auxiliary belt can provide tension to the first racks.

[0013] According to the cooling and heating fan, the heating assembly comprises a support and a heating wire, the support is movably connected in the shell along the radial direction of the shell, the support is connected with the output end of the driving assembly, and the heating wire is arranged on the support.

[0014] According to the cooling and heating fan, the two support plates are arranged in the shell, the area between the two support plates is used for the movement of the support, and the two support plates are in abutment with the support, so that the support can move between the first station and the second station along the length direction of the support plate.

[0015] According to the cooling and heating fan, the support plate is provided with a plurality of columnar protrusions, the columnar protrusions are distributed along the length direction of the support plate, and the support plate is in abutment with the support through the columnar protrusions, so as to reduce the contact area between the support plate and the support.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments, wherein:

[0018] Figure 1 Structure diagram of the cold and warm fan according to an embodiment of the present application;

[0019] Figure 2 Structure diagram of the internal structure of the heating assembly in the cold and warm fan according to an embodiment of the present application at the first station;

[0020] Figure 3 Structure diagram of the internal structure of the heating assembly in the cold and warm fan according to an embodiment of the present application at the second station; Figure 2 Enlarged view of part A in the structure diagram;

[0021] Figure 4 Structure diagram of the internal structure of the heating assembly in the cold and warm fan according to an embodiment of the present application at the second station;

[0022] Figure 5 Enlarged view of part B in the structure diagram; Figure 4 Enlarged view of part C in the structure diagram;

[0023] Figure 6 Enlarged view of part C in the structure diagram; Figure 4

[0024] Structure diagram of the internal structure of the cold and warm fan according to an embodiment of the present application; Figure 7

[0025] Structure diagram of the internal structure of the cold and warm fan according to an embodiment of the present application from another perspective; Figure 8

[0026] Structure diagram of the internal structure of the cold and warm fan according to an embodiment of the present application; Figure 9

[0027] Enlarged view of part D in the structure diagram; Figure 10 Figure 9 Structure diagram of the internal structure of the cold and warm fan according to an embodiment of the present application;

[0028] Figure 11 Structure diagram of the internal structure of the cold and warm fan according to an embodiment of the present application;

[0029] Reference signs:

[0030] Housing 100; air duct 110; straight guide groove 120; arc-shaped guide groove 130; support plate 140; columnar protrusion 141; guide plate 150;

[0031] Heating assembly 200; support 210; heating wire 220;

[0032] Driving assembly 300; first rotary driving member 310; gear 320;

[0033] Transmission member 400; first rack 410; limiting protrusion 411; second rack 420; ​

[0034] auxiliary assembly 500; auxiliary belt 510; second rotary driving member 520; winding wheel 530;

[0035] fan blade 600. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0037] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0038] In the description of the present application, the plural refers to two or more. If there is a description of the first, the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0039] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0040] Reference Figures 1 to 4 The cooling and heating fan according to the embodiments of the present application comprises a shell 100, a fan blade 600, a heating assembly 200, a driving assembly 300 and a transmission member 400.

[0041] The shell 100 has an air duct 110, and the fan blade 600 is rotatably arranged in the air duct 110. The shell 100 has a first work position and a second work position. The first work position is outside the air outlet range of the air duct 110, and the second work position is inside the air outlet range of the air duct 110. The heating assembly 200 is arranged in the shell 100 and is configured to be movable in the shell 100, so that the heating assembly 200 can be moved to the first work position or the second work position. The driving assembly 300 is arranged in the shell 100, the transmission member 400 is bendable, the output end of the driving assembly 300 is connected with the heating assembly 200 through the transmission member 400, the driving assembly 300 can drive the heating assembly 200 to move towards the first work position, so that the transmission member 400 can be bent, and the part of the transmission member 400 away from the heating assembly 200 can move towards a direction which is not parallel to the radial direction of the shell 100.

[0042] In the embodiment of the utility model, the shell 100 is cylindrical, the cross section of the shell 100 along the direction perpendicular to its axis is circular, and the radial direction of the shell 100 is the direction perpendicular to the axis of the shell 100. The air duct 110 in the shell 100 is cylindrical, and the fan blade 600 is rotatably arranged in the air duct 110. After the user starts the cooling and heating fan, the fan blade 600 rotates in the air duct 110 and generates wind, so that the air duct 110 can blow out wind, and the flow direction of the wind is the air outlet direction, that is, the direction of the arrow in the figure. Figure 1 The heating assembly 200 can move in the shell 100, and the heating assembly 200 itself can generate heat. The heating assembly 200 is arranged along the air outlet direction, so that the wind blown out from the air duct 110 can pass through the heating assembly 200 after the heating assembly 200 is close to the air duct 110, and thus the finally blown-out wind is hot wind.

[0043] In the embodiment of the utility model, when the cooling and heating fan is in the heating mode, the heating assembly 200 moves to the second work position; when the cooling and heating fan is in the ordinary mode, the heating assembly 200 moves to the first work position. The first work position is outside the air outlet range of the air duct 110, that is, the wind blown out from the air duct 110 does not pass through the first work position area, and when the heating assembly 200 is in the first work position, the wind blown out from the air duct 110 does not flow through the heating assembly 200, that is, the heating assembly 200 does not affect the blowing effect. The second work position is inside the air outlet range of the air duct 110, that is, the wind blown out from the air duct 110 passes through the second work position area, and when the heating assembly 200 is in the second work position, the wind blown out from the air duct 110 flows through the heating assembly 200, so that the blown-out wind is hot wind.

[0044] The driving assembly 300 is installed in the shell 100, and an output end of the driving assembly 300 is connected with the heating assembly 200 through the transmission member 400, so that the driving assembly 300 can drive the heating assembly 200 to move in the shell 100, and then the heating assembly 200 can be moved to the first station or the second station. When the user starts the heating mode of the cold and warm fan, the driving assembly 300 drives the heating assembly 200 to move to the second station, so that the blown wind is hot wind. When the user closes the heating mode, the driving assembly 300 drives the heating assembly to move to the first station, so that the wind blown from the air duct 110 does not act on the heating assembly, to ensure that the heating assembly 200 does not affect the blowing effect. In the embodiment of the utility model, the transmission member 400 can be bent. When the user closes the heating mode, the driving assembly 300 drives the heating assembly to move to the first station through the transmission member 400. In the process that the heating assembly moves to the first station, the transmission member 400 starts to be bent, and the part of the transmission member 400 far away from the heating assembly 200 starts to move in a direction not parallel to the radial direction of the shell 100, so that the heating assembly can move to the first station under the transmission of the transmission member 400, to ensure that the heating assembly does not affect the blowing effect. In the process that the transmission member 400 drives the heating element to move, the moving direction of the part of the transmission member 400 far away from the heating assembly 200 is not parallel to the radial direction of the shell 100, so that the shell 100 does not need to leave more radial space for the movement of the transmission member 400, and then the radial dimension of the shell 100 can be designed to be smaller, so the overall size of the cold and warm fan is reduced, and the manufacturing cost of the cold and warm fan is reduced.

[0045] It can be understood that the transmission member 400 can be bent. When the user closes the heating mode, the driving assembly 300 drives the heating assembly to move to the first station through the transmission member 400. In the process that the heating assembly moves to the first station, the transmission member 400 starts to be bent, and the part of the transmission member 400 far away from the heating assembly 200 starts to move in a direction not parallel to the radial direction of the shell 100, so that the heating assembly can move to the first station under the transmission of the transmission member 400, to ensure that the heating assembly does not affect the blowing effect. In the process that the transmission member 400 drives the heating element to move, the moving direction of the part of the transmission member 400 far away from the heating assembly 200 is not parallel to the radial direction of the shell 100, so that the shell 100 does not need to leave more radial space for the movement of the transmission member 400, and then the radial dimension of the shell 100 can be designed to be smaller, so the overall size of the cold and warm fan is reduced, and the manufacturing cost of the cold and warm fan is reduced.

[0046] As an embodiment of the utility model, the transmission member 400 is a cable, and the driving assembly 300 comprises a cable winding drum. The cable winding drum is rotatably connected in the shell 100, one end of the cable is connected with the cable winding drum, the other end of the cable is connected with the heating assembly 200, and the cable can be wound on the cable winding drum. When the user starts the heating mode, the cable winding drum rotates and unwinds the cable, and at this time the heating assembly 200 moves to the second station, so that the blown wind is hot wind. When the user closes the heating mode, the cable winding drum rotates and winds the cable, and at this time the cable starts to be bent, the part of the cable far away from the heating assembly 200 rotates around the axis of the cable winding drum, so that the part of the cable far away from the heating assembly 200 is wound on the cable winding drum, and the other part of the cable is in a straight state, so that the cable drives the heating assembly to move to the first station. The driving assembly 300 further comprises a rotary motor, and the rotary motor is used for driving the cable winding drum to rotate.

[0047] As another embodiment of the utility model, the transmission member 400 is a steel tape, and the driving assembly 300 includes a cable drum and a sleeve. The sleeve is arranged in the shell 100, the cable drum is rotatably connected in the sleeve, one end of the steel tape is connected with the cable drum, the other end of the steel tape is connected with the heating assembly 200, the steel tape can be wound on the cable drum, and a hole for the movement of the steel tape is formed in the sleeve. When the user starts the heating mode, the cable drum rotates and unwinds the steel tape, at this time, the heating assembly 200 moves to the second station, so that the blown wind is hot wind. When the user turns off the heating mode, the cable drum rotates and winds the steel tape, at this time, the steel tape is bent, the part of the steel tape away from the heating assembly 200 rotates around the axis of the cable drum, so that the part of the steel tape away from the heating assembly 200 is wound on the cable drum, and the other part of the steel tape is in a straight state, so that the steel tape pulls the heating assembly to move to the first station. The steel tape and the driving assembly 300 jointly constitute a structure similar to a tape measure, which will not be further described here. The driving assembly 300 further includes a rotary motor, which is used to drive the cable drum to rotate.

[0048] Reference Figures 2 to 6 The driving assembly 300 includes a first rotary driving member 310 and a gear 320, the gear 320 is rotatably arranged in the shell 100, the transmission member 400 includes a plurality of first racks 410 which are sequentially hinged, the first racks 410 at both ends of the transmission member 400 are respectively a first rack 410 at the head and a first rack 410 at the tail, the first rack 410 at the head is connected with the heating assembly 200, the gear 320 can be engaged with at least one first rack 410, the first rotary driving member 310 is used to drive the gear 320 to rotate, so that the part of the first rack 410 away from the heating assembly 200 can move in a direction not parallel to the radial direction of the shell 100, and the other part of the first rack 410 close to the heating assembly 200 pulls the heating assembly 200 to move to the first station. It can be understood that the transmission member 400 is formed by a plurality of first racks 410 which are hinged with each other, that is, the transmission member 400 is equivalent to a rack chain. Since any two adjacent first racks 410 are hinged with each other, the rack chain can be bent. The first rotary driving member 310 can be a first motor.

[0049] When the heating assembly 200 is located at the second station, and when the user turns on the normal mode, the first rotating driving member 310 drives the gear 320 to rotate forward. Since the gear 320 can engage with at least one first rack 410, the gear 320 can drive the plurality of first racks 410 to move. Under the rotation of the gear 320, the transmission member 400 composed of the plurality of first racks 410 begins to bend. At this time, the plurality of first racks 410 can be divided into two parts, one part is the first rack 410 away from the heating assembly 200, and the other part is the first rack 410 close to the heating assembly 200. The rotation of the gear 320 can change the moving direction of the first rack 410, so that the part of the first rack 410 away from the heating assembly 200 begins to move in a direction not parallel to the radial direction of the shell 100, which is similar to the gear 320 winding the plurality of first racks 410. At this time, the other part of the first rack 410 close to the heating assembly 200 begins to pull the heating assembly 200, so that the heating assembly 200 moves towards and moves to the first station. When the heating assembly 200 is located at the first station, and when the user turns on the heating mode, the first rotating driving member 310 drives the gear 320 to rotate reversely, which is similar to the gear 320 unwinding the plurality of first racks 410, so that the heating assembly 200 can move towards and move to the second station under its own gravity.

[0050] With reference to Figures 4 to 8 and Figure 11 The side of the plurality of first racks 410 away from the gear 320 is provided with a limiting protrusion 411, which can limit the relative rotation of the adjacent two first racks 410, so that the other part of the first rack 410 close to the heating assembly 200 remains straight. The first rotating driving member 310 is used to drive the gear 320 to rotate, so that the other part of the first rack 410 close to the heating assembly 200 can push the heating assembly 200 to move towards the second station. It can be understood that since the plurality of first racks 410 are hinged with each other, the plurality of first racks 410 can rotate relative to each other.

[0051] When the heating assembly 200 is located at the first station, and when the user starts the heating mode, the first rotary drive 310 drives the gear 320 to reverse. In the process of reversing the gear 320, the other part of the first rack 410 close to the heating assembly 200, i.e. the first rack 410 between the heating assembly 200 and the gear 320 has a tendency to swing towards the gear 320. The side of the plurality of first racks 410 away from the gear 320 is provided with a limiting protrusion 411, when the first rack 410 has a tendency to swing towards the gear 320, the limiting protrusion 411 can abut against the adjacent first rack 410, the limiting protrusion 411 at this time plays a limiting role, avoiding the relative rotation between the adjacent two first racks 410, thereby enabling the other part of the first rack 410 close to the heating assembly 200 to be in a straightened state. The other part of the first rack 410 in the straightened state at this time plays a role of pushing the heating assembly 200, so that the heating assembly 200 can be pushed from the first station to the second station.

[0052] Reference Figure 7 and Figure 8 The transmission member 400 further comprises a second rack 420, the second rack 420 is parallel to the radial direction of the housing 100, the second rack 420 is connected with the heating assembly 200, one end of the second rack 420 is hinged with the first rack 410 at the head, the second rack 420 can be engaged with the gear 320, and the limiting protrusion 411 on the first rack 410 at the head can abut against the second rack 420 to limit the relative rotation between the second rack 420 and the first rack 410 at the head. It can be understood that when the heating assembly 200 is located at the first station, the gear 320 and the second rack 420 remain in the engaged state, at this time the plurality of first racks 410 are away from the heating assembly 200. When the user starts the heating mode, the first rotary drive 310 drives the gear 320 to reverse, the second rack 420 first starts to push the heating assembly 200 to move towards the second station. After the second rack 420 is disengaged from the gear 320, the gear 320 starts to be engaged with the plurality of first racks 410 in turn, so that the plurality of first racks 410 move towards the direction of the second station in turn, and under the action of the plurality of limiting protrusions 411, the second rack 420 and the plurality of first racks 410 can remain in a straightened state and are parallel to the radial direction of the housing 100, so that the second rack 420 and the plurality of first racks 410 can push the heating assembly 200 to move to the second station. When the heating assembly 200 moves to the second station, the gear 320 stops rotating, at this time the gear 320 remains engaged with the first rack 410 at the tail.

[0053] When the user opens the normal mode, the first rotating driving member 310 drives the gear 320 to rotate forward, the gear 320 starts to mesh with the plurality of first tooth bars 410 in turn, so that the second tooth bar 420 and the plurality of first tooth bars 410 pull the heating assembly 200 to move towards the first work position. After the plurality of first tooth bars 410 are all disengaged from the first tooth bar 410, at this time, the plurality of first tooth bars 410 are all not parallel to the radial direction of the shell 100, the gear 320 starts to mesh with the second tooth bar 420. Under the rotation of the gear 320, the second tooth bar 420 continues to pull the heating assembly 200 to move to the first work position. When the heating assembly 200 moves to the first work position, the gear 320 stops rotating, at this time, the gear 320 is in meshing with the second tooth bar 420.

[0054] In the embodiment of the utility model, the transmission member 400 is composed of the second tooth bar 420 and the plurality of first tooth bars 410, and the length of the second tooth bar 420 is greater than the length of the first tooth bar 410. On the one hand, the second tooth bar 420 can reduce the number of the first tooth bar 410, and the second tooth bar 420 can serve as an additional support, so that the strength and rigidity of the whole transmission member 400 can be higher, and the stability of the transmission member 400 is improved. On the other hand, the second tooth bar 420 is parallel to the radial direction of the shell 100 and is fixedly connected to the heating assembly 200, when the gear 320 meshes with the second tooth bar 420, the second tooth bar 420 can provide more stable pulling force or pushing force for the movement of the heating assembly 200, so that the heating assembly 200 can move more stably.

[0055] In the embodiment of the utility model, referring to Figure 2 and Figure 4 , the cooling and heating fan comprises two heating assemblies 200 and two driving assemblies 300, the shell 100 is provided with two first work positions and two second work positions, the two heating assemblies 200 can be moved to the two first work positions respectively, so that the two heating assemblies 200 are all outside the air outlet range of the air duct 110, so as to ensure the air outlet effect of the cooling and heating fan. The two heating assemblies 200 can be moved to the two second work positions respectively, so that the two heating assemblies 200 are all inside the air outlet range of the air duct 110, so that the blown air is hot air. The two driving assemblies 300 are used for driving the two heating assemblies 200 to move in the shell 100 respectively, so that the two heating assemblies 200 can be moved to the two second work positions or the two first work positions respectively. The two heating assemblies 200 are symmetrical upward and downward, and the two driving assemblies 300 are rotationally symmetrical about the axis of the shell 100.

[0056] Herein, one of the heating assemblies 200 and the driving assembly 300 located below is taken as an example. When the heating assembly 200 is located at the first station, and the user starts the heating mode, the first rotating driving member 310 drives the gear 320 to reverse, at this time, the gear 320 keeps meshing with the second rack 420, and the second rack 420 pushes the heating assembly 200 to move towards the second station. After the second rack 420 is disengaged from the meshing with the gear 320, the gear 320 starts to mesh with the first rack 410. The rotation of the gear 320 will make the plurality of first racks 410 have a tendency to swing towards the gear 320, but under the action of the plurality of limiting protrusions 411, the second rack 420 and the plurality of first racks 410 cannot rotate relatively, so that the second rack 420 and the plurality of first racks 410 between the heating assembly 200 and the gear 320 can keep straight, that is, the second rack 420 and the plurality of first racks 410 can push the heating assembly 200, so that the heating assembly 200 can be pushed from the first station to the second station. When the heating assembly 200 is located at the second station, and the user starts the normal mode, the second rack 420 and the plurality of first racks 410 can pull the heating assembly 200 to the first station, which will not be further described herein. It can be understood that under the action of the plurality of limiting protrusions 411, whether the heating assembly 200 is located above the shell 100 or below the shell 100, the driving member 400 composed of the second rack 420 and the plurality of first racks 410 can pull or push the heating assembly 200 to move in the shell 100, so that the heating assembly 200 can move to the first station or the second station.

[0057] Reference Figure 5 , Figure 9 and Figure 10, the housing 100 is formed with a straight guide groove 120 and an arc-shaped guide groove 130 which are communicated with each other, the straight guide groove 120 is parallel to the radial direction of the housing 100, the plurality of first racks 410 can move in the straight guide groove 120 and the arc-shaped guide groove 130, and the second rack 420 can move in the straight guide groove 120. It can be understood that the inner side walls of the straight guide groove 120 and the arc-shaped guide groove 130 can support and guide the movement of the plurality of first racks 410, so that the movement of the plurality of first racks 410 can be more smooth and stable. Similarly, the inner side wall of the straight guide groove 120 can support and guide the movement of the second rack 420, so that the movement of the second rack 420 can be more smooth and stable. In the embodiment of the utility model, in the process that the heating assembly 200 moves from the second station to the first station, the plurality of first racks 410 will first move in the straight guide groove 120 and then move into the arc-shaped guide groove 130, and the second rack 420 will gradually move into the straight guide groove 120. When the heating assembly 200 moves to the first station, the plurality of first racks 410 are located in the arc-shaped guide groove 130, and the second rack 420 is completely located in the straight guide groove 120.

[0058] In the process that the heating assembly 200 moves from the first station to the second station, the plurality of first racks 410 will first move in the arc-shaped guide groove 130 and then move into the straight guide groove 120, and the second rack 420 will gradually extend out of the straight guide groove 120. When the heating assembly 200 moves to the second station, part of the first racks 410 are located in the straight guide groove 120, another part of the first racks 410 are located outside the straight guide groove 120, and the second rack 420 is completely located outside the straight guide groove 120.

[0059] Reference Figure 4 , Figure 5 and Figure 11The cold and warm fan further comprises an auxiliary assembly 500 arranged in the shell 100, an output end of the auxiliary assembly 500 is connected with the terminal first rack 410, and the auxiliary assembly 500 can provide tension to the plurality of first racks 410, so that the tension is kept between any two adjacent first racks 410. It can be understood that, on the one hand, the auxiliary assembly 500 can continuously provide tension to the plurality of first racks 410 during the movement of the plurality of first racks 410, so that the tension is kept between the plurality of first racks 410, to ensure that the plurality of first racks 410 will not shake during the movement, and thus the movement of the heating assembly 200 can be more stable. On the other hand, the tension provided by the auxiliary assembly 500 can also assist the plurality of first racks 410 to pull the heating assembly 200 during the pulling of the heating assembly 200 by the plurality of first racks 410. On the other hand, the tension provided by the auxiliary assembly 500 can keep the tension between the plurality of first racks 410, and thus the force between the first rack 410 and the gear 320 is improved, and the slipping between the first rack 410 and the gear 320 is effectively avoided.

[0060] Reference Figure 5 and Figure 11 The auxiliary assembly 500 comprises an auxiliary belt 510, a winding wheel 530 and a second rotary driving member 520, the winding wheel 530 is rotatably connected in the shell 100, the output end of the second rotary driving member 520 is connected with the winding wheel 530, one end of the auxiliary belt 510 is connected with the terminal first rack 410, the other end of the auxiliary belt 510 is connected with the winding wheel 530, the auxiliary belt 510 can be wound on the winding wheel 530, and the second rotary driving member 520 is used to drive the winding wheel 530 to rotate, so that the auxiliary belt 510 unwound from the winding wheel 530 can be taut, and the auxiliary belt 510 can provide tension to the plurality of first racks 410. The second rotary driving member 520 can be a second motor.

[0061] It needs to be explained that the auxiliary belt 510 unwound from the winding wheel 530 is the auxiliary belt 510 not wound on the winding wheel 530. It can be understood that when the heating assembly 200 is in the second working position and the user starts the normal mode, the first rotary driving member 310 drives the gear 320 to rotate forward, and the second rotary driving member 520 drives the winding wheel 530 to rotate forward, so that the winding wheel 530 winds the auxiliary belt 510. During the pulling of the heating assembly 200 by the plurality of first racks 410, the winding wheel 530 winds the auxiliary belt 510, so that the auxiliary belt 510 unwound from the winding wheel 530 is in a taut state, and the auxiliary belt 510 in the taut state can provide tension to the plurality of first racks 410, so that the tension is kept between the plurality of first racks 410, and the auxiliary belt 510 can also assist to pull the heating assembly 200.

[0062] When the heating assembly 200 is in the first station, and the user starts the heating mode, the first rotary drive 310 drives the gear 320 to reverse, and the second rotary drive 520 drives the winding wheel 530 to reverse, so that the winding wheel 530 unwinds the auxiliary belt 510. In the process of pushing the heating assembly 200 by the plurality of first racks 410, the winding wheel 530 unwinds the auxiliary belt 510, and the rotating speed of the winding wheel 530 is lower than that of the gear 320, so that the auxiliary belt 510 unwound by the winding wheel 530 can be in a straightened state. The auxiliary belt 510 in the straightened state can provide tension to the plurality of first racks 410, so that the plurality of first racks 410 can maintain tension between them.

[0063] With reference to Figure 7 and Figure 8 The heating assembly 200 includes a bracket 210 and a heating wire 220, the bracket 210 is movably connected in the radial direction of the shell 100, the bracket 210 is connected with the output end of the driving assembly 300, and the heating wire 220 is arranged on the bracket 210. Under the action of the driving assembly 300, the bracket 210 can move between the first station and the second station, so that the bracket 210 can drive the heating wire 220 to move between the first station and the second station. In the embodiment of the utility model, the second rack 420 is connected with the bracket 210, the bracket 210 and the heating wire 220 are both arc-shaped, and the arc-shaped heating wire 220 can increase the contact area with air, so as to improve the heating effect of the cooling and heating fan.

[0064] The cooling and heating fan further includes two support plates 140, the two support plates 140 are both arranged in the shell 100, the area between the two support plates 140 is used for the movement of the bracket 210, and the two support plates 140 are both abutted with the bracket 210, so that the bracket 210 can move between the first station and the second station along the length direction of the support plate 140. It can be understood that the length direction of the support plate 140 is parallel to the radial direction of the shell 100, and the two support plates 140 support and guide the movement of the bracket 210 along the radial direction of the shell 100, on the one hand, the bracket 210 can move along the radial direction of the shell 100, and on the other hand, the bracket 210 can not shake during the movement.

[0065] It needs to be explained that the support 210 is in interference fit with the two support plates 140, that is, after the support 210 abuts against the two support plates 140, the support 210 can be fixed on the two support plates 140. Specifically, the two sides of the support 210 are also provided with elastic tabs, and the two elastic tabs can abut against the two support plates 140 respectively and elastically deform, so that the support 210 is fixed on the two support plates 140. As an embodiment of the present application, the cooling and heating fan further comprises two guide plates 150, both of which are arranged in the shell 100, both sides of the support 210 are formed with two limiting grooves, and both of the two guide plates 150 are arranged in the limiting grooves, so as to avoid the support 210 from being pulled out from between the two support plates 140. Two limiting plates are also arranged in the shell 100, and both of the two limiting plates can abut against the support 210, so that the support 210 is stably located at the second station.

[0066] Reference Figure 4 And Figure 6 A plurality of columnar protrusions 141 are arranged on the support plate 140, and the plurality of columnar protrusions 141 are distributed along the length direction of the support plate 140. The support plate 140 abuts against the support 210 through the plurality of columnar protrusions 141, so as to reduce the contact area between the support plate 140 and the support 210. It can be understood that the cross section of the columnar protrusion 141 is semicircular, and the support 210 can abut against the outer wall of the arc of the columnar protrusion 141. The support plate 140 abuts against the support 210 through the plurality of columnar protrusions 141, so as to reduce the contact area between the support plate 140 and the support 210, and further reduce the friction between the support 210 and the support plate 140, so as to reduce the wear between the support 210 and the support plate 140.

[0067] In the embodiment of the present application, the cooling and heating fan further comprises a front grille cover, a rear grille cover and a third motor. The front grille cover and the rear grille cover are respectively connected with the front and rear ends of the shell 100, and the third motor is arranged in the shell 100. The output end of the third motor is connected with the fan blade 600, and the third motor is used to drive the fan blade 600 to rotate, so that the fan blade 600 in the air duct 110 rotates and the air duct 110 can blow out air.

[0068] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0069] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A cooling and heating fan, characterized in that, include: The housing has an air duct inside, and a first workstation and a second workstation inside the housing. The first workstation is outside the air outlet range of the air duct, and the second workstation is within the air outlet range of the air duct. A fan blade, which is rotatably disposed within the air duct; A heating element is disposed within the housing and configured to be movable within the housing so that the heating element can be moved to the first workstation or the second workstation. A drive assembly, wherein the drive assembly is disposed within the housing; A transmission component, which is bendable, is connected to the heating component via the transmission component at the output end of the drive component. The drive component can drive the heating component to move toward the first station so that the transmission component can bend and the portion of the transmission component away from the heating component moves in a direction not parallel to the radial direction of the housing.

2. The cooling and heating fan according to claim 1, characterized in that: The drive assembly includes a first rotary drive member and a gear. The gear is rotatably disposed within the housing. The transmission member includes a plurality of first racks that are hinged sequentially. The first racks located at both ends of the transmission member are a head rack and a tail rack, respectively. The head rack is connected to the heating element. The gear can mesh with at least one of the first racks. The first rotary drive member is used to drive the gear to rotate so that the portion of the first rack away from the heating element can move in a direction not parallel to the radial direction of the housing, and the other portion of the first rack near the heating element pulls the heating element toward the first workstation.

3. The cooling and heating fan according to claim 2, characterized in that: Each of the first racks has a limiting protrusion on the side opposite to the gear. The limiting protrusion can restrict the relative rotation of two adjacent first racks so that the other part of the first rack near the heating element remains taut. The first rotary drive is used to drive the gear to rotate so that the other part of the first rack near the heating element can push the heating element toward the second station.

4. The cooling and heating fan according to claim 3, characterized in that: The transmission component further includes a second rack, which is parallel to the radial direction of the housing. The second rack is connected to the heating element, and one end of the second rack is hinged to the first rack at the beginning. The second rack can mesh with the gear, and the limiting protrusion on the first rack at the beginning can abut against the second rack to restrict relative rotation between the second rack and the first rack at the beginning.

5. The cooling and heating fan according to claim 4, characterized in that: The housing has interconnected linear guide grooves and arc-shaped guide grooves. The linear guide grooves are parallel to the radial direction of the housing. Multiple first racks can move within the linear guide grooves and the arc-shaped guide grooves, and the second racks can move within the linear guide grooves.

6. The cooling and heating fan according to claim 2, characterized in that: It also includes an auxiliary component disposed within the housing. The output end of the auxiliary component is connected to the end of the first rack. The auxiliary component is capable of providing tension to a plurality of the first racks so that tension is maintained between any two adjacent first racks.

7. The cooling and heating fan according to claim 6, characterized in that: The auxiliary component includes an auxiliary belt, a take-up reel, and a second rotary drive. The take-up reel is rotatably connected within the housing. The output end of the second rotary drive is connected to the take-up reel. One end of the auxiliary belt is connected to the end of the first rack, and the other end of the auxiliary belt is connected to the take-up reel. The auxiliary belt is capable of winding around the take-up reel. The second rotary drive is used to drive the take-up reel to rotate so that the auxiliary belt unwound by the take-up reel can be taut, and the auxiliary belt can provide tension to the plurality of first racks.

8. The cooling and heating fan according to claim 1, characterized in that: The heating component includes a bracket and a heating wire. The bracket is movably connected inside the housing along the radial direction of the housing. The bracket is connected to the output end of the drive component. The heating wire is disposed on the bracket.

9. The cooling and heating fan according to claim 8, characterized in that: It also includes two support plates, both of which are disposed inside the housing. The area between the two support plates is used for the movement of the bracket. Both support plates abut against the bracket so that the bracket can move between the first workstation and the second workstation along the length direction of the support plates.

10. The cooling and heating fan according to claim 9, characterized in that: The support plate is provided with a plurality of columnar protrusions, which are distributed along the length of the support plate. The support plate abuts against the bracket through the plurality of columnar protrusions to reduce the contact area between the support plate and the bracket.

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