CN212454902U

CN212454902U - Air duct variable cooling and heating circulating fan

Info

Publication number: CN212454902U
Application number: CN202021660123.5U
Authority: CN
Inventors: 赖伴来; 庞亚鹏
Original assignee: Shenzhen Lianchuang Technology Group Co Ltd
Current assignee: Shenzhen Lianchuang Technology Group Co Ltd
Priority date: 2020-05-10
Filing date: 2020-08-11
Publication date: 2021-02-02
Anticipated expiration: 2030-08-11
Also published as: CN113638895A

Abstract

The utility model discloses a changeable changes in temperature circulation fan in wind channel is equipped with a section radial air inlet channel on the rear screen panel that is located between fan blade and the heating element, and the front end of rear screen panel forms a section airtight annular wind channel, airtight annular wind channel and radial air inlet channel coaxial coupling, and radial air inlet channel's outer disc department still is equipped with the wind-break piece, and the one end of wind-break piece forms rotatory hinge joint through fixed connector and rear screen panel; when the wind shield piece rotates towards the direction far away from the radial air inlet channel, the radial air inlet channel is opened by the wind shield piece, and when the wind shield piece reversely rotates to the position of the outer circular surface of the radial air inlet channel, the radial air inlet channel is closed by the wind shield piece. The utility model discloses radial inlet air channel circumferential position at back screen panel has set up a plurality of windshields along the axial rotation, and the radial wind of windshield complete separation directly gets into sealed annular wind channel around heating element to can avoid the phenomenon of doping cold wind when the warm braw completely, the air-out effect is softer, effectively improves user's body and feels.

Description

Air duct variable cooling and heating circulating fan

Technical Field

The utility model relates to an air conditioning technology field, concretely relates to changeable changes in temperature in wind channel circulation fan.

Background

The warmer or the fan is a necessary electrical appliance for modern families, and at present, the warmer or the fan is a single warmer or a single fan on the market, so that products which can really integrate the warming function of the warmer and the blowing function of the fan are few and few, in particular to a cold-warm type circulating fan. The cooling and heating type circulating fan can be used as a heater and a fan, and has the advantages of cooling and heating, and multiple purposes. Because the cooling and heating type circulating fan is fixed in product structure, the axial flow fan blades synchronously supply air in the radial direction and the axial direction, and the air supply quantity is large. When hot air needs to be blown out, cold air is also mixed in the blown hot air, and particularly the body feeling of the periphery of the whole front net is not ideal.

For example, chinese patent document CN 206903897 discloses a natural wind/warm wind dual-purpose electric circulation fan, in which when the fan is used as a heater, radial inlet wind does not pass through a heating element, and thus cold wind is obviously mixed in blown hot wind, and the wind force is strong, so that the feeling of the user is not ideal. In order to solve the heating problem of the axial flow fan blade in the cooling and heating circulating fan, the existing cooling and heating circulating fan needs to be structurally optimized, and the comfort of people in heating is met on the premise of not influencing the cold air quantity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the heating amount of wind that current axial-flow type changes in temperature circulation fan exists big, and be doped with unheated cold wind, cause the unsatisfactory technical problem of body sense effect, for this reason, the utility model provides a changeable changes in temperature circulation fan in wind channel can realize the regulation of the cold wind amount of wind, and can improve the heating body well and feel the effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cooling and heating circulating fan with a variable air duct comprises a rear mesh enclosure, a driving device, a heating assembly and fan blades, wherein the driving device and the heating assembly are arranged in the rear mesh enclosure, and a rotating shaft of the driving device penetrates through the heating assembly and then is connected with the fan blades; a radial air inlet channel is further arranged on the rear mesh enclosure between the fan blades and the heating assembly, a closed annular air channel is formed at the front end of the rear mesh enclosure, the closed annular air channel is coaxially connected with the radial air inlet channel, a wind blocking sheet for blocking radial air inlet of the radial air inlet channel is further arranged on the outer circular surface of the radial air inlet channel, and one end of the wind blocking sheet is rotatably hinged with the rear mesh enclosure through a fixed connecting piece; when the wind blocking piece rotates towards the direction far away from the radial air inlet channel, the wind blocking piece opens the air inlet channel of the radial air inlet channel, and when the wind blocking piece reversely rotates to the outer circular surface position of the radial air inlet channel, the wind blocking piece closes the air inlet channel of the radial air inlet channel.

Preferably, the fixed connecting piece is a hinge mechanism which is arranged at one end of the radial air inlet channel, and the wind blocking piece controls the opening and closing of the air inlet channel of the radial air inlet channel through rotation at one end of the radial air inlet channel.

Further preferably, the fixed connecting piece is arranged on the outer side of the closed annular air duct, and the wind-blocking sheet is positioned at a rotation angle through the fixed connecting piece.

The wind shield piece along the outer circumference direction of radial inlet air channel sets up a plurality ofly, with every the wind shield piece is connected fixed connection spare set up respectively in radial inlet air channel's one end or both ends, each the wind shield piece passes through respectively fixed connection spare with the back screen panel forms rotatory articulated.

The wind shield pieces are arranged in the circumferential direction, and at least 2 wind shield pieces can be spliced into a circumference along the direction of the radial air inlet channel.

The rear mesh enclosure is of a shell-shaped structure with multiple holes and/or grids, a buckle is further arranged at the other end opposite to the hinged end of the wind shield, and when the wind shield is buckled at the radial air inlet channel, the buckle and the holes or the grids on the rear mesh enclosure are clamped and fixed.

The heating assembly comprises a heating support and a heating body, wherein a circumferential closed axial ventilation channel is formed in the heating support, the axial ventilation channel is communicated with axial air inlet entering through a rear mesh enclosure, the heating body is fixed in the axial ventilation channel of the heating support, the heating support is fixedly connected with the rear mesh enclosure in a detachable and fixed mode, and axial air inlet generated by the fan blades passes through the axial ventilation channel and enters the closed annular air channel to be discharged.

The axial ventilation channel is a conical air channel, and the size of the ventilation cross section of the axial ventilation channel is gradually reduced in the direction of approaching the fan blades.

The front end inner side surface of the rear mesh enclosure is further provided with a front mesh, a detachable fixed connection is formed between the outer circular surface of the front mesh and the inner side surface of the closed annular air duct, and when the radial air inlet channel is opened, the driving device drives the axial wind and the radial wind generated by the rotation of the fan blades to be discharged through the front mesh.

The utility model discloses technical scheme has following advantage:

A. the utility model discloses set up a plurality of wind-break pieces that rotate along the direction perpendicular to axial air inlet in the radial air inlet channel of back screen panel circumferential position, wind-break piece can be completely with all radial ventiduces on the radial air inlet channel close, completely obstruct radial wind and directly get into sealed annular wind channel around heating element, only keep normally open axial wind and form the warm braw after heating element heats completely, thereby can avoid the phenomenon of adulterating cold wind in the warm braw completely, the air-out effect is softer, effectively improve user's body sense; after the plurality of wind shields or a plurality of wind shields are opened, the air inlet channel and the air inlet volume can be increased, the radial and axial bidirectional air inlet is realized, and the air volume discharged by the front net is larger and cooler; the cold air and the warm air can be switched more conveniently.

B. The utility model effectively collects the surrounding air to form axial air inlet flow by establishing the conical axial ventilation channel, and uniformly blows out the air in a concentrated manner, so that the blowing feeling is stronger, the structure is simple, and the structural form is novel; by controlling the opening quantity and the opening angle of the wind-shielding sheets, the total amount of the inlet air of the radial air inlet channel can be regulated and controlled in a cold air state, and meanwhile, the air inlet amount of a normally open axial ventilation channel is not reduced.

C. The utility model discloses a set up the windshield piece, the supporting toper axial ventiduct of establishing, except fully optimizing the performance under the product warm braw state, let the environment rapid heating up in the certain space range simultaneously, shorten the intensification time, let the user obtain warmly in can the shortest time, experience more comfortable.

D. The utility model has simple structure and low cost; the hinge type structure is adopted, so that the appearance of the product is not more limited, and the realization is easier.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a closed state of a windshield provided by the present invention;

fig. 2 is a schematic view of the windshield provided by the present invention rotated to an intermediate position;

fig. 3 is a schematic view of the windshield of the present invention in a maximum open state;

fig. 4 is a schematic view of the present invention provided that one of the flaps on the circumference is fully opened;

FIG. 5 is a cross-sectional view of the whole device provided by the present invention;

FIG. 6 is a schematic view of a clip provided on the wind deflector;

FIG. 7 is a schematic view of all flaps in a warm state when they are closed;

FIG. 8 is a schematic view of the radial air intake passage being fully open in a cold air condition;

fig. 9 is a schematic view of a radial air intake passage partially opened in a cold air condition.

The labels in the figure are as follows:

1-rear net cover, 11-radial air inlet channel, 111-grid bar, 12-closed annular air duct, 13-rear net; 2-a drive device; 3-heating component, 31-heating bracket, 32-heating element; 4-fan blades; 5-a wind shield sheet; 6-buckling; 7-front net, 71-net annulus; 8-fixing the connecting piece; 9-a machine base; a-a radial air duct; b-axial ventilation ducts.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 5, the utility model provides a cooling and heating circulating fan with variable air channel, which comprises a rear mesh enclosure 1, a driving device 2, a heating component 3 and a fan blade 4, wherein the rear mesh enclosure comprises a radial air inlet channel 11, a closed annular air channel 12 and a rear mesh 13, the driving device 2 and the heating component 3 are arranged in the rear mesh enclosure 1, and a rotating shaft of the driving device 2 penetrates through the heating component 3 and then is connected with the fan blade 4; the radial air inlet channel 11 is positioned on the rear mesh enclosure 1 between the fan blades 4 and the heating component 3, the closed annular air channel 12 is a section of air channel arranged at the front end of the rear mesh enclosure 1, the closed annular air channel 12 is coaxially connected with the radial air inlet channel 11, a wind shield 5 for preventing the radial air inlet of the radial air inlet channel 11 is further arranged on the outer circular surface of the radial air inlet channel 11, and one end of the wind shield 5 is rotatably hinged with the rear mesh enclosure 1 through a fixed connecting piece 8; when the wind-blocking sheet 5 rotates towards the direction far away from the radial wind-inlet channel 11, the wind-blocking sheet 5 opens the wind-inlet channel of the radial wind-inlet channel 11, and when the wind-blocking sheet 5 rotates reversely to the outer circular surface position of the radial wind-inlet channel 11, the wind-blocking sheet 5 closes the wind-inlet channel of the radial wind-inlet channel 11. As shown in fig. 1 and 7, the wind blocking sheet 5 blocks the radial ventilation channel a of the radial air intake channel 11 along the circumference completely, when the driving device drives the fan blade to rotate, only axial wind entering from the back net can be generated, the axial wind sequentially enters the heating component 3 and the closed annular air channel 12, and is finally discharged from the front net 7, and the state is suitable for a warm wind state, and when the heating component 3 works, the wind discharged from the front net 7 cannot be mixed with cold wind, so that the experience of a user is better. Of course, when the wind shield is opened, the wind can be simultaneously supplied in the radial direction and the axial direction, the air inlet amount is large, and the wind shield is very suitable for the cold wind state, as shown in fig. 2 and 8.

Fig. 2 is a schematic view of the windshield in a half-open state, and fig. 3 is a schematic view of the windshield in a state where the windshield is open to the maximum position.

The fixed connecting piece 8 is preferably a hinge mechanism which is arranged at one end of the radial air inlet channel 11, and the wind shield 5 controls the opening and closing of the air inlet channel of the radial air inlet channel 11 through rotation at one end of the radial air inlet channel 11. As shown in fig. 2, the fixed connector 8 is disposed outside the closed annular air duct 12, and the wind-blocking sheet 5 is positioned by the fixed connector 8 at a rotation angle. The hinge mechanism here is prior art, runs through the locating hole on the fixed block through the round pin axle, and round pin axle and locating hole can interference fit each other, also can rely on torsional spring class etc. to carry out the angular positioning that supplementary windshield piece opened and feel, the utility model discloses in do not do specifically injectly.

The utility model provides a plurality of wind-break pieces 5 set up a plurality ofly along 11 circumferencial directions of radial inlet air channel, and each wind-break piece 5 forms rotatory articulated through fixed connector 8 and back screen panel 1 respectively. Can be according to actual conditions, be equipped with 2 at least with wind-break piece 5 on the circumferencial direction, all wind-break pieces 5 can all be in the same direction as prolonging to piece into complete disc on 11 circumferencial directions of radial air inlet channel, the utility model provides a wind-break piece 5 has equally divided on the circumferencial direction and has set up 4, can independently open control to every wind-break piece 5. As shown in fig. 3, the 4 windshields are in a fully opened state, and in fig. 4, only one of the windshields 5 above the rear net cover is opened, and radial wind generated by the rotation of the blades enters only from above, and is then mixed with generated axial wind and discharged from the front net 7, as shown in fig. 9. If set up windshield 5 at the both ends of radial inlet air channel 11, the orientation of opening of adjacent windshield 5 will form crisscross setting (not shown in the figure), certainly, can also set up the hinge mechanism in radial inlet air channel 11's axial middle part position, can realize equally the utility model discloses the purpose, here are no longer repeated.

The utility model provides a back screen panel 1 preferably adopts the shell-like structure that has porous and/or grid, as shown in fig. 6, the other end department relative with the hinged end of windshield piece 5 still is equipped with

buckle

6, and 5 locks of windshield piece are when radial inlet air channel 11 departments, and buckle 6 forms the joint with hole or grid on the screen panel 1 of back and is fixed, make windshield piece 5 have more the steadiness, certainly can also be other similar fixed modes, do not specifically limit in the utility model.

As shown in fig. 5, the heating assembly 4 includes a heating support 31 and a heating element 32, a circumferential closed axial air duct b is formed in the heating support 31 and is communicated with the axial air intake of the rear mesh enclosure 1, the heating element 32 is fixed in the axial air duct b of the heating support 31, and the heating support 31 and the rear mesh enclosure 1 form a detachable fixed connection, so that the axial air intake generated by the fan blades 4 enters from the rear mesh 13, then enters the closed annular air duct 12 through the axial air duct b and the heating element 32, and is discharged from the front mesh 7. The utility model discloses the heat-generating body that adopts is prior art, can purchase from the market, and here is no longer repeated. The utility model discloses well preferred support 31 that will generate heat sets to the taper structure, and axial ventiduct b forms a toper wind channel promptly, and in the direction that tends to fan blade 4, axial ventiduct b's ventilation cross section size reduces gradually, makes normally open axial wind concentrate back discharge machine body gradually outside.

The utility model discloses the preceding net 7 that the front end of rear net cover 1 was equipped with, fixed connection can be dismantled in formation between preceding net 7 and airtight annular air duct 12, and it possesses the effect of safety protection and play wind. As shown in fig. 3, the front net ring surface 71 of the front net 7 extends into the closed annular air duct 12 and is parallel to the inner side surface of the closed annular air duct 12 to form a detachable fixed connection mode, and the driving device 2 drives the fan blades 4 to rotate to form radial wind and axial wind, and the radial wind and the axial wind enter the inner cavity of the front net ring surface 71 and are discharged from the front net 7. Of course, the inner side of the front net 7 can also be fixedly connected with the outer side of the front end of the rear net cover, which is not described herein again.

The whole rear mesh enclosure 1 is preferably connected with the base 9 through a rotating mechanism, and the base 9 can be placed on a table, the ground or other positions.

The driving wind shield 5 can be driven to rotate along the hinge mechanism not only manually but also automatically, and the automatic driving can be formed by a transmission structure and a motor, for example, hydraulic damping telescopic rods and other devices are adopted; the utility model is not described in detail, and manual operation is only one of the embodiments of the driving method;

in the utility model, the total of a plurality of wind-shielding sheets 5 is equal to the area of the radial air inlet channel 11, and each wind-shielding sheet 5 can movably rotate; every wind-break piece 5 can independently rotate or rotate in step, the utility model discloses do not do the restriction.

It should be noted that the radial air intake channel 11 is of a grid structure, as shown in fig. 6, the radial air intake channel 11 is composed of a plurality of grid bars 111 arranged along the axial direction, a radial air duct a is formed between adjacent grid bars 111, when the wind deflector 5 is lapped on the radial air intake channel 11 with the grid structure, two side edges of the wind deflector 5 need to be lapped on a local area on one side of the upper surface of the grid bars 111, and an edge of the wind deflector 5 butted with the wind deflector is lapped on a local area on the other side of the upper surface of the same grid bar 111, so that the radial air duct a can be completely covered, and the generation of radial wind is prevented. For the radial air inlet channel with the air holes, a closed lap joint area lapped with the edge position of the wind shield piece is also reserved, the purpose is to prevent the wind shield piece from covering the radial air inlet channel and preventing the radial wind from being generated, and the description is omitted.

The radial air inlet channel 11 can be closed and opened by the rotation of the wind shield 5, and because the circulating fan or the cold and warm circulating fan is radial and axial bidirectional air inlet, the axial air inlet is in a normally open state, and the following two conditions are divided for specific application description:

as shown in fig. 7, when the warm air is needed, the wind-blocking sheet 5 is manually rotated downward to be in a closed state, and after the radial air inlet channel 11 is closed, the air inlet channel and the air inlet volume can be reduced; the air coming out of the front net 7 can be warmer and the warm air is more uniform by only the normally open axial air inlet.

As shown in fig. 8, when cold air is needed, the wind shield 5 is manually opened, and after the radial air inlet channel 11 is opened, the air inlet channel and the air inlet amount can be increased; radial and axial bidirectional air inlet is realized, and the air quantity coming out of the front net 7 is larger and cooler.

As mentioned above, the process of opening and closing the radial air intake channel is the two most basic states implemented by the present invention; it can also be between these two states, as shown in fig. 9, that is, opening or closing part of the wind-blocking sheet, and the state of adjustable radial wind-inlet size can be selected arbitrarily in real time; the size and the area of the opening and closing wind-shielding sheet depend on the actual demand of product design, and the utility model discloses in here do not limit and describe with tired.

The utility model provides a changeable, especially structure that can be applied to the cooling and heating fan in wind channel, at the round that is close to the fan blade, namely radial inlet channel, set up a plurality of rotatable wind-break pieces 5 on the whole circumference of radial inlet channel, can realize opening and closing radial inlet channel 11 through rotatory wind-break piece 5, use and carry out the free switch between cold wind and warm braw and use, utilize wind-break piece 5 to close all radial ventilation ducts a in radial inlet channel 11 completely, have the mixed cold wind phenomenon and improve product performance when improving the warm braw; the utility model discloses simple structure is succinct, and the principle is simple, has wholly promoted user's experience and can produce the property ability.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A cooling and heating circulating fan with a variable air duct comprises a rear mesh enclosure (1), a driving device (2), a heating assembly (3) and fan blades (4), wherein the driving device (2) and the heating assembly (3) are arranged in the rear mesh enclosure (1), and a rotating shaft of the driving device (2) penetrates through the heating assembly (3) and then is connected with the fan blades (4); the fan blade type air-conditioning device is characterized in that a wind blocking piece (5) used for blocking radial air inlet of the radial air inlet channel (11) is further arranged on the outer circular surface of the radial air inlet channel (11), and one end of the wind blocking piece (5) is rotatably hinged with the rear mesh enclosure (1) through a fixed connecting piece (8); the utility model discloses a radial air inlet channel (11) of wind shield, including radial air inlet channel (11), wind shield piece (5) are towards keeping away from during the direction rotation of radial air inlet channel (11), wind shield piece (5) will the air inlet channel of radial air inlet channel (11) is opened, wind shield piece (5) counter-rotation extremely during the outer disc position of radial air inlet channel (11), wind shield piece (5) will the air inlet channel of radial air inlet channel (11) closes.

2. The air channel variable cooling and heating circulating fan according to claim 1, wherein the fixed connecting member (8) is a hinge mechanism disposed at one end of the radial air inlet channel (11), and the wind blocking plate (5) is rotated by one end of the radial air inlet channel (11) to control the opening and closing of the air inlet channel of the radial air inlet channel (11).

3. Air channel variable cooling and heating circulation fan according to claim 2, characterized in that the fixed connection piece (8) is arranged on the closed annular air channel (12), and the wind shield sheet (5) is positioned by the fixed connection piece (8) through the rotation angle.

4. The cooling and heating circulating fan with a variable air duct according to any one of claims 1 to 3, wherein a plurality of the wind blocking sheets (5) are arranged along the outer circumference direction of the radial air inlet channel (11), the fixed connecting piece (8) connected with each wind blocking sheet (5) is respectively arranged at one end or two ends of the radial air inlet channel (11), and each wind blocking sheet (5) forms a rotary hinge joint with the rear mesh enclosure (1) through the fixed connecting piece (8).

5. Air channel variable cooling and heating circulation fan according to claim 4, characterized in that the wind deflector (5) is provided with at least 2 pieces which can be spliced into a circumference along the direction of the radial air inlet channel (11) in the circumferential direction.

6. The air channel variable cooling and heating circulating fan according to claim 5, wherein the rear mesh enclosure (1) is a shell-shaped structure with multiple holes and/or grids, a buckle (6) is further arranged at the other end opposite to the hinged end of the wind shield sheet (5), and when the wind shield sheet (5) is buckled at the radial air inlet channel (11), the buckle (6) and the holes or grids on the rear mesh enclosure (1) are clamped and fixed.

7. The air channel variable cooling and heating circulation fan according to claim 1, wherein the heating assembly (3) comprises a heating bracket (31) and a heating element (32), a circumferential closed axial ventilation channel (b) is formed in the heating bracket (31) and is communicated with axial inlet air entering from the rear mesh (13) of the rear mesh (1), the heating element (32) is fixed in the axial ventilation channel (b) of the heating bracket (31), and the heating bracket (31) and the rear mesh (1) form a detachable fixed connection, so that the axial inlet air generated by the fan blade (4) enters the closed annular air channel (12) through the axial ventilation channel (b) and the heating element (32) and is discharged.

8. Air channel variable cooling and heating circulation fan according to claim 7, characterized in that the axial air channel (b) is a conical air channel, and the ventilation cross-sectional dimension of the axial air channel (b) is gradually reduced in the direction towards the fan blades (4).

9. The air channel-variable cooling and heating circulating fan according to claim 1, wherein a front net (7) is further disposed on the inner side surface of the front end of the rear net (1), the outer circular surface of the front net (7) is detachably and fixedly connected with the inner side surface of the closed annular air channel (12), and when the radial air inlet channel (11) is opened, the driving device (2) drives the fan blades (4) to rotate to generate axial air and radial air which are discharged through the front net (7).