Cooling and heating dual-purpose tower fan

Abstract

The utility model relates to a cooling and heating dual-purpose tower fan which comprises a shell, an air duct frame provided with an air outlet, a cold air module, a hot air module and an air guide module, and the cold air module comprises a wind wheel rotationally installed on the air duct frame and a first rotation driving piece used for driving the wind wheel to rotate; the hot air module comprises a support rotationally pivoted to the air duct frame, a heating piece arranged on the support and a second rotation driving piece used for driving the support to rotate. The air guide module comprises an air guide plate rotationally connected to the support and a guide frame fixedly arranged on the air duct frame, a guide groove formed along the rotating track of the support is formed in the guide frame, and a guide column movably inserted into the guide groove is arranged on the air guide plate. When cold air is blown, the air guide plate can form a certain angle relative to the air outlet, the air guide function of the air guide plate is achieved, airflow distribution can be optimized, the diffusion range and the air outlet amount of the cold air are increased, and the air outlet effect of the cold air is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the tower fan field, specifically, especially, a cold and warm dual-purpose tower fan. BACKGROUND

[0002] Tower fan as seasonal product, either single cold or single hot, therefore, usually will be idle half a year time. At present, the gradually appearing cold and warm dual-purpose tower fan on the market, its principle is to add a PTC heating body in the tower fan, and the heating body is installed on the movement mechanism, so when the heating body turns to the air outlet, hot air can be blown out, and when the heating body leaves the air outlet, cold air is blown out. SUMMARY

[0003] Therefore, the utility model provides a cold and warm dual-purpose tower fan which can improve the cold air outlet.

[0004] The utility model discloses a cold and warm dual-purpose tower fan which can improve the cold air outlet.

[0005] A cold and warm dual-purpose tower fan, comprising:

[0006] A shell is provided with an air inlet grille and an air outlet grille arranged opposite to each other;

[0007] A wind channel frame is installed in the shell and is provided with an air outlet opposite to the air outlet grille;

[0008] A cold air module comprises a wind wheel rotatably installed on the wind channel frame, and a first rotary driving member fixedly arranged on the wind channel frame and used for driving the wind wheel to rotate;

[0009] A hot air module comprises a support pivotally connected to the wind channel frame about an axis, a heating member arranged on the support, and a second rotary driving member arranged on the wind channel frame and used for driving the support to rotate, and the heating member can cover the air outlet;

[0010] A wind guide module comprises a wind guide plate rotatably connected to the support, and a guide frame fixedly arranged on the wind channel frame, the guide frame is provided with a guide groove arranged along the rotation track of the support, and the wind guide plate is provided with a guide column movably inserted into the guide groove.

[0011] In the technical solution, the cold air module and the hot air module are independently designed to realize integrated combination of cold air and warm air functions. The cold air module adopts a combination of a fan wheel and a first rotary driving member to ensure efficient air flow delivery in the cold air mode. The hot air module rotates the support to cover the air outlet with the heating member, so that the cold air is uniformly heated when passing through the heating member, thereby realizing blowing of the hot air. In the air guide module, the linkage design of the air guide plate, the guide frame and the support ensures that when the support is rotated to open the air outlet, the guide column abuts against the end of the guide groove, and at this time, the support is continuously rotated to rotate the air guide plate relative to the support, thereby causing the air guide plate to form a certain angle relative to the air outlet, realizing the air guide function of the air guide plate, optimizing the air flow distribution, combing the cold air flow, enhancing the diffusion range and air flow of the cold air, and greatly improving the air outlet effect of the cold air.

[0012] Optionally, in a possible implementation, the air duct frame is provided with an extension plate on one side of the air outlet, and the air guide plate is attached to the extension plate or forms an air guide channel together with the extension plate.

[0013] In the technical solution, the attachment of the air guide plate and the extension plate can realize effective closure of the air outlet in the hot air mode, form a closed air duct structure, and avoid heat loss through gaps. When the air guide plate and the extension plate form an air guide channel together, the combined structure can guide the air outlet direction to avoid air turbulence, and reduce the air outlet resistance by extending the diffuser section.

[0014] Optionally, in a possible implementation, the air guide plate is provided with a limiting block, and the limiting block can abut against the support when the air guide plate rotates relative to the support.

[0015] In the technical solution, the abutment of the limiting block and the support can strictly limit the rotation range of the air guide plate when the air outlet is opened, avoiding mechanical interference or component deformation caused by excessive rotation. That is, the angle is accurately adjusted by rigid limiting, ensuring that the air guide plate always stays on the preset track in different working conditions and maintaining the stability of air flow guidance.

[0016] Optionally, in a possible implementation, the air guide plate is hinged to one side of the support, both ends of the air guide plate are provided with hinged shafts, the two hinged shafts are coaxially arranged, the support is provided with two mounting holes matched with the two hinged shafts, and the two hinged shafts are respectively movably inserted into the two mounting holes.

[0017] In the technical solution, the coaxial arrangement of the hinged shafts at both ends and the matching mounting holes can ensure the axial consistency of the air guide plate during rotation, eliminate the deflection torque caused by unilateral support, and thereby reduce the risk of mechanical vibration and wear. The double-point support design enhances the rigid connection between the air guide plate and the support, avoiding structural deformation caused by asymmetric stress.

[0018] Optionally, in a possible implementation manner, the end of the support is provided with an extension frame, the air duct frame is provided with a mounting column, the extension frame is movably arranged on the mounting column through a connecting member, and the second rotary driving member drives rotation of the extension frame by driving rotation of the connecting member.

[0019] In the technical solution, the connecting member directly drives the extension frame to rotate around the mounting column, axial alignment and torque balance of a power transmission path are achieved, energy loss in the transmission process is effectively reduced, and connection with the second rotary driving member is facilitated. In addition, the mounting column serves as a fixed fulcrum of the extension frame, and can provide radial and axial double constraints to ensure coaxial accuracy during rotation of the support.

[0020] Optionally, in a possible implementation manner, the connecting member comprises a sleeve, a limiting column, and a rotating arm connecting the sleeve and the limiting column, the sleeve is movably arranged on the mounting column, the extension frame is provided with a limiting hole, and the extension frame is movably arranged on the sleeve and the limiting column is inserted into the limiting hole.

[0021] In the technical solution, the second rotary driving member drives rotation of the sleeve, the limiting column can rotate around an axis under the action of the rotating arm, and the limiting column can drive the extension frame to rotate around the axis synchronously because the limiting column is inserted into the limiting hole. This design structure is simple and facilitates assembly, can avoid large load generated when the second rotary driving member directly drives the extension frame, and improves service life of the second rotary driving member.

[0022] Optionally, in a possible implementation manner, the heat generating member comprises a plurality of PTC heat generating elements, and the plurality of PTC heat generating elements are arranged at intervals along a length direction of the air outlet.

[0023] In the technical solution, a plurality of PTC elements are arranged at intervals along a length direction of the air outlet, multi-section independent heating of airflow can be achieved, local overheating or cold zone formation can be avoided, and uniformity of air outlet temperature in a spatial dimension is ensured.

[0024] Optionally, in a possible implementation manner, a side of the heat generating member close to the air outlet is sequentially covered with a dustproof net and a fixed cover plate.

[0025] In the technical solution, the dustproof net serves as a primary filter layer to intercept large-particle pollutants, and the fixed cover plate serves as a secondary protection structure to effectively block fine dust from entering the heat generating member. The synergistic effect of the two can ensure smoothness of air outlet while significantly reducing dust accumulation risk of the heat generating element.

[0026] Optionally, in a possible implementation manner, the first rotary driving member is located at a bottom of the air duct frame, and the second rotary driving member is located at a top of the air duct frame.

[0027] In the technical solution, the top and bottom double driving members are cooperated to independently drive the wind wheel and the support, the installation space in the shell can be reasonably utilized, the space utilization is effectively improved, and independent maintenance or replacement is facilitated.

[0028] Optionally, in a possible implementation, the shell comprises a front shell and a rear shell connected detachably, the air inlet grille is located in the rear shell, and the air outlet grille is located in the front shell.

[0029] In the technical solution, the front shell and the rear shell are connected detachably, any shell can be independently disassembled for local maintenance or cleaning, and the disassembly and assembly complexity of the whole machine is avoided. In addition, the air inlet grille and the air outlet grille are arranged in the rear shell and the front shell respectively to form a front-to-back air circulation channel, and air flow short circuit interference is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0031] Figure 1 It is an overall structure of an embodiment.

[0032] Figure 2 It is Figure 1 It is an enlarged view of part A.

[0033] Figure 3 It is a partial structure schematic view of a cold air module and a hot air module of an embodiment.

[0034] Figure 4 It is a schematic view of the changing state of a wind guide module of an embodiment.

[0035] Figure 5 It is a partial structure schematic view of an embodiment.

[0036] Reference signs: 1-Shell; 11-Front shell; 12-Rear shell; 2-Wind channel support; 21-Air outlet; 22-Extension plate; 3-Cold air module; 31-Wind wheel; 32-First rotary driving member; 4-Hot air module; 41-Support; 411-Extension support; 42-Heating element; 43-Second rotary driving member; 5-Wind guide module; 51-Wind guide plate; 511-Guide column; 512-Limiting block; 513-Hinge shaft; 52-Guide support; 521-Guide groove; 6-Connecting member; 61-Sleeve; 62-Limiting column; 63-Swivel arm; 7-Dustproof net; 8-Fixed cover plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0038] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0039] Please refer to Figure 1 The present embodiment provides a cold and warm dual-purpose tower fan, comprising: a shell 1 provided with opposite air inlet and air outlet grilles; an air duct frame 2 installed in the shell 1 and provided with an air outlet 21 opposite to the air outlet grille; a cold air module 3 comprising a wind wheel 31 rotatably installed on the air duct frame 2 and a first rotary driving member 32 fixedly installed on the air duct frame 2 and used to drive the wind wheel 31 to rotate; a hot air module 4 comprising a bracket 41 pivotally connected to the air duct frame 2 about an axis, a heating element 42 provided on the bracket 41, and a second rotary driving member 43 provided on the air duct frame 2 and used to drive the bracket 41 to rotate, the heating element 42 covering the air outlet 21; a wind guide module 5 comprising a wind guide plate 51 rotatably connected to the bracket 41 and a guide frame 52 fixedly installed on the air duct frame 2, the guide frame 52 being provided with a guide groove 521 arranged along the rotation track of the bracket 41, and the wind guide plate 51 being provided with a guide column 511 movably inserted into the guide groove 521. The first rotary driving member 32 and the second rotary driving member 43 are both motors. The guide column 511 and the wind guide plate 51 are detachably connected.

[0040] The cold air module 3 and the hot air module 4 are independently designed, so that the cold air and the warm air are integrated. The cold air module 3 is combined with the first rotary driving member 32, so that the air flow is efficiently delivered in the cold air mode. The hot air module 4 is rotated by the bracket 41 to cover the heating element 42 to the air outlet 21, so that the cold air is uniformly heated when passing through the heating element 42, thereby realizing the blowing of the hot air. In the air guide module 5, the linkage design of the air guide plate 51, the guide frame 52 and the bracket 41 is that when the bracket 41 is rotated to open the air outlet 21, the guide column 511 abuts against the end of the guide groove 521, and then the bracket 41 is further rotated to rotate the air guide plate 51 relative to the bracket 41, so that the air guide plate 51 is at a certain angle relative to the air outlet 21, thereby realizing the air guide function, optimizing the air flow distribution, combing the cold air flow, enhancing the diffusion range and the air volume, and greatly improving the air outlet effect of the cold air.

[0041] Please refer to Figure 3 and Figure 4 Specifically, when the hot air is needed, the second rotary driving member 43 drives the bracket 41 to rotate, so as to drive the bracket 41 and the heating element 42 thereon to cover the air outlet 21, and at this time, the air guide plate 51 is attached to one side of the air outlet 21, so that when the fan wheel 31 rotates, the cold air passes through the heating element 42 to form the hot air blowing out. When the cold air is needed, the second rotary driving member 43 drives the bracket 41 to rotate, so as to drive the bracket 41 and the air guide plate 51 to move away from the air outlet 21, and at this time, the guide column 511 on the air guide plate 51 is synchronously slid along the guide groove 521 until the guide column 511 abuts against one end of the guide groove 521, and at this time, the deflection angle of the air guide plate 51 is too large relative to the air outlet 21, so the bracket 41 needs to be further rotated, and since the air guide plate 51 is limited to move by the guide groove 521, at this time, the air guide plate 51 is rotated relative to the bracket 41, so as to reduce the deflection angle of the air guide plate 51, thereby having a better air guide effect.

[0042] In the embodiment, the air duct frame 2 is provided with an extension plate 22 on one side of the air outlet 21, and the air guide plate 51 can be attached to the extension plate 22 or jointly form an air guide channel with the extension plate 22. The extension plate 22 can be arranged at a certain inclination angle, and when the hot air is needed, the air guide plate 51 can be completely attached to the extension plate 22; when the cold air is needed, the air guide channel is formed between the air guide plate 51 and the extension plate 22, and the air guide plate 51 and the extension plate 22 are respectively located on opposite sides of the air outlet 21.

[0043] The abutment design of the air deflector 51 and the extension plate 22 can achieve effective closure of the air outlet 21 in the hot air mode, forming a closed air duct structure to avoid heat loss through gaps. When the air deflector 51 and the extension plate 22 jointly form an air deflection channel, the combined structure can guide the air outlet direction to avoid airflow turbulence, and reduce the air outlet resistance by extending the diffuser section.

[0044] Please refer to Figure 4 In this embodiment, the air deflector 51 is provided with a limiting block 512, which can abut against the bracket 41 when the air deflector 51 rotates relative to the bracket 41. The limiting block 512 is used to limit and position the rotation angle of the air deflector 51, and extends from the side of the air deflector 51 and is perpendicular to the length direction of the air deflector 51. The limiting mode of the limiting block 512 is that when the air deflector 51 rotates to a certain angle relative to the bracket 41, the limiting block 512 abuts against one side of the bracket 41 to limit the further movement of the air deflector 51, and at this time the rotation angle of the bracket 41 and the deflection angle of the air deflector 51 can be accurately positioned without using a sensor for positioning.

[0045] Therefore, the abutment of the limiting block 512 and the bracket 41 can strictly limit the rotation range of the air deflector 51 when opening the air outlet 21, avoiding mechanical interference or component deformation caused by excessive rotation. That is, through rigid limiting, the angle is accurately adjusted to ensure that the air deflector 51 is always on the preset track under different working conditions, maintaining the stability of airflow guidance.

[0046] Please refer to Figure 5 In this embodiment, the air deflector 51 is hinged to one side of the bracket 41, and the air deflector 51 is provided with two hinged shafts 513 at both ends, the two hinged shafts 513 are coaxially arranged, and the bracket 41 is provided with two mounting holes matched with the two hinged shafts 513, and the two hinged shafts 513 are respectively movably inserted into the two mounting holes.

[0047] The coaxial arrangement of the two hinged shafts 513 at both ends and the matching mounting holes can ensure the axial consistency of the air deflector 51 during rotation, eliminate the deflection torque caused by single-sided support, and thus reduce the risk of mechanical vibration and wear. In addition, the double-point support design enhances the rigid connection between the air deflector 51 and the bracket 41, avoiding structural deformation caused by asymmetric stress. Furthermore, the plug-in design of the hinged shaft 513 and the mounting hole simplifies the assembly process of the air deflector 51 and the bracket 41, and realizes quick positioning and installation through standardized hole shaft matching. This structure also facilitates disassembly and maintenance, reducing the overall replacement cost caused by damage to parts.

[0048] Please refer to Figure 1 and Figure 2In the embodiment, the end of the support 41 is provided with an extension frame 411, the air duct frame 2 is provided with a mounting column (not shown in the figure), the extension frame 411 is movably arranged on the mounting column through the connecting piece 6, and the second rotary driving piece 43 drives the rotation of the extension frame 411 by driving the rotation of the connecting piece 6. The extension frame 411 is perpendicular to the support 41, and the extension frame 411 can be arranged at two positions located at opposite ends of the support 41. The connecting piece 6 includes a sleeve 61, a limiting column 62, and a rotating arm 63 connecting the sleeve 61 and the limiting column 62, the sleeve 61 is movably arranged on the mounting column, the extension frame 411 is provided with a limiting hole, the extension frame 411 is movably arranged on the sleeve 61, and the limiting column 62 is inserted into the limiting hole. The output shaft of the second rotary driving piece 43 is fixedly connected with the sleeve 61.

[0049] The extension frame 411 is directly driven to rotate around the mounting column through the connecting piece 6, the axial alignment and torque balance of the power transmission path are realized, the energy loss in the transmission process is effectively reduced, and the connection with the second rotary driving piece 43 is facilitated. In addition, the mounting column serves as a fixed fulcrum of the extension frame 411 and can provide radial and axial double constraints to ensure the coaxial accuracy during the rotation of the support 41.

[0050] The second rotary driving piece 43 drives the rotation of the sleeve 61, the limiting column 62 can rotate around the shaft under the action of the rotating arm 63, and since the limiting column 62 is inserted into the limiting hole, the extension frame 411 is driven to rotate around the shaft synchronously. The design structure is simple and facilitates assembly, can avoid large load generated by directly driving the extension frame 411 by the second rotary driving piece 43, and improves the service life of the second rotary driving piece 43.

[0051] In the embodiment, the heating element 42 includes a plurality of PTC heating elements, and the plurality of PTC heating elements are arranged at intervals along the length direction of the air outlet 21. By arranging the plurality of PTC elements longitudinally along the air outlet 21, multi-section independent heating of the airflow can be realized, local overheating or cold zone formation can be avoided, and the uniformity of the outlet air temperature in the spatial dimension is ensured.

[0052] In addition, the heating element 42 of the embodiment is sequentially covered with a dust screen 7 and a fixed cover plate 8 on the side close to the air outlet 21. The dust screen 7 can intercept large-particle pollutants as a primary filter layer, and the fixed cover plate 8 effectively blocks fine dust from entering the inside of the heating element 42 as a secondary protection structure. The synergistic effect of the two can ensure smoothness of the outlet air while significantly reducing the dust accumulation risk of the heating element.

[0053] It should be noted that the first rotating drive member 32 is located at the bottom of the air duct frame 2, and the second rotating drive member 43 is located at the top of the air duct frame 2. Through the cooperation of the top and bottom double drive members, independent driving of the wind wheel 31 and the support 41 is realized, the installation space in the shell 1 can be reasonably utilized, the space utilization is effectively improved, and independent maintenance or replacement is facilitated.

[0054] In the embodiment, the shell 1 comprises a front shell 11 and a rear shell 12 connected in a detachable manner, the air inlet grille is located on the rear shell 12, and the air outlet grille is located on the front shell 11. The front shell 11 and the rear shell 12 are jointly spliced to form a structure with an internal cavity, and the front shell 11 and the rear shell 12 are detachably connected, so that any shell can be independently disassembled for local maintenance or cleaning, thereby avoiding the complexity of disassembling the whole machine. In addition, the air inlet grille and the air outlet grille are arranged on the rear shell 12 and the front shell 11, respectively, to form a front-to-back air circulation channel, thereby avoiding air flow short circuit interference.

[0055] In the description of the utility model, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0056] In addition, the terms "first" and "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0057] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling and heating tower fan, characterized in that, The application relates to a cooler, which comprises the following parts: a housing provided with an air inlet grille and an air outlet grille arranged oppositely; an air duct frame installed in the housing and provided with an air outlet opposite to the air outlet grille; a cold air module comprising a wind wheel rotatably installed on the air duct frame and a first rotating driving part fixed on the air duct frame and used for driving the wind wheel to rotate; a hot air module comprising a support pivotally connected to the air duct frame around an axis, a heating part arranged on the support and a second rotating driving part arranged on the air duct frame and used for driving the support to rotate, wherein the heating part can cover the air outlet; a guide air module comprising a guide air plate rotatably connected to the support and a guide frame fixed on the air duct frame, wherein the guide frame is provided with a guide groove arranged along the rotating track of the support, and the guide air plate is provided with a guide column movably inserted into the guide groove.

2. The dual-purpose tower fan of claim 1, wherein, The air duct frame is provided with an extension plate on one side of the air outlet, and the guide air plate can be attached to the extension plate or jointly forms a guide air passage with the extension plate.

3. The dual-purpose tower fan of claim 2, wherein, The guide air plate is provided with a limiting block, which can abut against the support when the guide air plate rotates relative to the support.

4. The dual-purpose tower fan of claim 1, wherein, The guide air plate is hingedly connected to one side of the support, both ends of the guide air plate are provided with hinged shafts, the two hinged shafts are coaxially arranged, the support is provided with two mounting holes matched with the two hinged shafts, and the two hinged shafts are movably inserted into the two mounting holes respectively.

5. The dual-purpose tower fan of claim 1, wherein, The end of the support is provided with an extension frame, the air duct frame is provided with a mounting column, the extension frame is movably arranged on the mounting column through a connecting part, and the second rotating driving part drives the extension frame to rotate by driving the rotation of the connecting part.

6. The dual-purpose tower fan of claim 5, wherein, The connecting part comprises a sleeve, a limiting column and a rotating arm connecting the sleeve and the limiting column, the sleeve is movably sleeved on the mounting column, the extension frame is movably sleeved on the sleeve, and the limiting column is movably inserted into a limiting hole arranged on the extension frame.

7. The dual-purpose tower fan of claim 1, wherein, The heating part comprises a plurality of PTC heating elements, and the PTC heating elements are arranged at intervals along the length direction of the air outlet.

8. The dual-purpose tower fan of claim 7, wherein, The heating part is sequentially covered with a dustproof net and a fixed cover plate on one side close to the air outlet.

9. The dual-purpose tower fan of claim 1, wherein, The first rotating driving part is located at the bottom of the air duct frame, and the second rotating driving part is located at the top of the air duct frame.

10. The tower fan of any one of claims 1-9, wherein, The housing comprises a front housing and a rear housing which are detachably connected, the air inlet grille is arranged on the rear housing, and the air outlet grille is arranged on the front housing.

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