EP3896287A1 - Channel-variable cooling and heating circulatingfan - Google Patents
Channel-variable cooling and heating circulatingfan Download PDFInfo
- Publication number
- EP3896287A1 EP3896287A1 EP20187120.9A EP20187120A EP3896287A1 EP 3896287 A1 EP3896287 A1 EP 3896287A1 EP 20187120 A EP20187120 A EP 20187120A EP 3896287 A1 EP3896287 A1 EP 3896287A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- heating
- net cover
- annular
- rear net
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 92
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 208000032836 Ring chromosome 15 syndrome Diseases 0.000 description 29
- 238000010586 diagram Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/524—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps shiftable members for obturating part of the flow path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
- F04D29/547—Ducts having a special shape in order to influence fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
Definitions
- the invention relates to the technical field of air conditioning, in particular to a channel-variable cooling and heating circulatingfan.
- Heater or fan is necessary electric appliance in modern home.
- At present available product on the market either is a single heater, or is a single fan.
- Cooling and heating circulatingfan can be used as a heater, also as a fan, so it is a multi-purpose machine with both cooling and heating functions. Since the cooling and heating circulating fan always has a fixed product structure, blades of an axial fan suck air from the radial direction and the axial direction simoutaniously, and the air intake volume is large. When a warm wind is needed, the hot wind blown out is also mixed with cold wind, resulting in poor body feelingespecially around the entire wind outlet net.
- Chinese patent literature CN 206903897 discloses a dual electric natural wind/warm air circulation fan.
- the radial air intake does not pass through the heating body. Therefore, the hot air blown out is obviously mixed with cold air, with a strong wind force, which gives the user an unsatisfactory body feeling.
- the objective of the present invention is to solve the technical problems that hot air supply by existing axial flow cooling and heating circulatingfans is large in air volume and is mixed with cold air which causes unsatisfactory body feeling. Therefore, the present invention provides a channel-variable cooling and heating circulatingfan, which can realize the adjustment of the cooling air volume, and can well improve the body feeling during heating.
- the present invention provides a channel-variable cooling and heating circulating fan, comprising a rear net cover, a drive device, a heating component anda fan blade, wherein the drive device and the heating component are arranged inside the rear net cover, and the drive device has a rotatableshaft going through the heating component to connect to the fan blade;
- the rear net cover is provided with a radial air intake channel of an annular shape thereon between the fan blade and the heating component, and a sealed annular air channel is formed on a front end of the rear net cover and is communicated with the radial air intake channel; characterize in that, the radial air intake channel is provided with an annular windshield ring, and the annular windshield ring has an axial size greater than or equal to an axial size of the radial air intake channel, and is capable of axially moving into and out of a position where the radial air intake channel is located, thereby controlling the opening and closing
- the annular windshield ring is an annular housing of a cylindricalshape, which is sleeved outside or inside the rear net cover and forms a slidable connection with the rear net cover in the axial direction.
- the rear net cover is provided with a guide groove or guide rib arranged axially
- the annular windshield ring is provided with a corresponding guide rib or guide groove on the housing thereof, and the annular windshield ring is slidable with respect to the rear net cover along the axial direction.
- the heating component comprises a heating support and a heating body, wherein an axial air channel is formed inside the heating support and is airtight in a circumferential direction, and wherein the heating body is fixed inside the axial air channel of the heating support, and the heating support forms a detachable fixing connection with the rear net cover, and wind generated by the fan blade blows through the axial air channel and the heating body into the sealed annular air channel and flows out therefrom.
- the annular windshield ring is arrangedinside the heatingsupport, and is provided with an switch handle thereon radially extending out through an axial elongated hole of the heating support and extending out of an outer side of the rear net cover; the annular windshield ring is driven to move along an inner side of the heating support by axially moving the switch handle, thereby gradually closing or opening the radial air intake channel on the rear net cover.
- the axial air channel is a tapered air channel with a ventilation cross-section size which decreases gradually in a direction towards the fan blade.
- the radial air intake channel consists of a plurality rows of grids or air holes axially arranged on the rear net cover.
- a front net is further provided in front of the rear net cover and forms a detachable fixed connection with the sealed annular air channel.
- the cooling and heating circulating fan is also provided with a base which is in a rotary connection with the outer side of the rear net cover.
- the present invention provides a channel-variable cooling and heating circulating fan, generally comprising a body 1 and a base 2.
- the body 1 comprises a rear net cover 11, a drive device 12, a heating component 13, a fan blade 14 and front net17.
- the front net 17 forms a detachable fixed connection with a sealed annular air channel 112, for providng safety protection and allowing output of wind.
- the drive device 12 and the heating component 13 are arranged inside the rear net cover 11.
- the drive device 12 has a rotatableshaft going through the heating component 13 to connect to the fan blade 14.
- the rear net cover 11 is provided with a radial air intake channel 111 of an annular shape thereon between the fan blade 14 and the heating component 13, and a sealed annular air channel 112 is formed on a front end of the rear net cover 11.
- the sealed annular air channel112 is a cylindrical housing formed by looping a plate without holes into a ring.
- the rear net cover 11 is of gridded structure, and a closed air intakegrid 113 is formed at the rear end thereof.
- Motor 121 is installed at the bottom of the inner cavity of the rear net cover 11.
- Motor cover 122 covers the motor 121 and is fixed together with the rear net cover 11.
- the sealed annular air channel 112 and theradial air intake channel 111 are connected coaxially and successively.
- the radial air intake channel 111 is provided with an annular windshield ring 15.
- the annular windshield ring 15 has an axial size greater than or equal to an axial size of the radial air intake channel 111, and is capable of axially moving into and out of a position where the radial air intake channel 111 is located.
- the radial air intake channel 111 When the annular windshield ring15 is moved into the entire position of the radial air intake channel 111, theradial air intake channel 111 will be completely blocked, realizing the closing of theradial air intake channel 111, thereby preventing outside air from entering into these aled annular air channel 112 through the radial air intake channel 111.Of course, when the annular windshield ring 15 is moved out of the position of the radial air intake channel 111, the radial air intake channel 111 will be opened. Therefore, when heating mode is required, the user can choose to move the annular windshield ring 15 into the position of the radial air intake channel 111 to completely cover the the radial air intake channel 111, thus blocking intake of radial wind.
- Axial wind produced by the rotating of the fan blade enters though intake air grids 113at the rear end of the rear net cover 11 and blows though the heating component, so that the hot wind blown out does not comprise cold wind.
- the user can adjust the position of the annular windshield ring 15 according to specific conditions, thus the user can control the air volume by completely or partially opening the radial air intake channel according to personal preference.
- the annular windshield ring 15 is arranged movably in a position between the sealed annular air channel 112 and the heating component 13, i.e. the position of the axial direction air intake channel 111as shown in Figure 3 .
- the annular windshield ring 15 is of a sizethat can completely covering theradial air intake channel 111.
- size includes area, diameter, dimensions and shape, etc. The purpose is that it can close the radial air intake channel 111.
- the annular windshield ring 15 adopted in the present invention is an annular housing of a cylindrical shape, which is sleeved outside or inside the rear net cover 11 and forms a slidable connection with the rear net cover 11 in the axial direction.
- the annular windshield ring 15 is arranged inside the rear net cover 11 in the present invention.
- the rear net cover 11 is provided with a guide groove or guide rib arranged axially thereon, and the annular windshield ring 15 is provided with a corresponding guide rib or guide groove "c"on the housing thereof, so that the guide groove or guide ribon the rear net cover 11 can engage with the guide rib or guide groove on the annular windshield ring 15, and the annular windshield ring15 is slidable with respect to the rear net cover 11 along the axial direction to realize the opening and closing of the radial air intake channel 111.
- the guidefeatures can also be arrange on the heating support 131 and the annular windshield ring 15.
- two or more guidefeatures such as concave or convexcan be provided on the annular windshield ring 15, and the heating support 131 can be provided with corresponding guidefeaturesthereon which can match with the guide featureson the annular windshield ring 15.
- the specific matching section and shape of the guide features are not limited in the present invention.
- the guidefeatures are given for schematically showing but not limiting the present invention, Other features or ways with guiding effect can also be used in the present invention.
- the purpose of the guide is to allow the annular windshield ring15 to slide back and forth more smoothly, preventing the annular windshield ring15 from rotating in a circular direction.
- the heating component 13 comprises a heating support 131 and a heating body 132.
- axial air channel "a" is formed inside the heating support 131 and is airtight in a circumferential direction.
- the heating body 132 is fixed inside the axial air channel "a" of the heating support 131, and the heating support 131 forms a detachable fixed connection with the rear net cover 11, so that wind generated by the fan blade 14 passes through intake air grids 113 and blows through the axial air channel "a” and the heating body 132 into the sealed annular air channel 112 and flows out therefrom.
- the heating body 132 adopted here are those existing in prior art, so its structural characteristics will not be described here.
- the annular windshield ring 15 is arranged inside the heating support 131, and is provided with an switch handle 16thereon.
- the switch handle 16 radially extends out through an axial elongated hole "b"of the heating support 131 and extends out of an outer side of the rear net cover 11.
- the annular windshield ring 15 is driven to move along a side of the heating support 131 by axially moving the switch handle 16, thereby gradually closing or opening the radial air intake channel 111 on the rear net cover 11.
- the switch handle 16 is fixed to anedge of the annular windshield ring 15.
- One or more switch handles 16 can be provided. There is no restriction to the number of the switch handles.
- the annular windshield ring 15 and the switch handle 16 may be integrated as a whole or may be separate parts, which is not restricted in the present invention. The purpose of the switch handle is just for easy operation to help moving the annular windshield ring15.
- the structureof the heating support 131 shows that an inner side of the heating support 131 forms an axial air channel "a" which is tapered in shape and has a ventilation cross-section size decreasing gradually in a direction towards the fan blade 14, so that surrounding air can be effectively collectedto form an intake air flow, and the user experience can be better.
- the radial air intake channel 111 consists of a plurality rows of grids or air holes axially arranged on the rear net cover 11.
- the mesh size of the grids or air holes on the rear net cover 11 is not specifically restricted.
- the outer side of the rear net cover 11 forms a rotary connection with the base 2.
- the structure of the base 2 is known in prior art, so itwill not be described here.
- the motor 121 and its shaft, front net 17, rear net cover 11 and fanblade 14 in the present invention are coaxialalong a central axis;
- the rear net cover 11, heating support 131 and sealed annular air channel112 are coaxialalong a central axis.
- the annular windshield ring 15 is movableor slidable back and forth along the central axis with the assistance of the guide groove or guide ribunder the action of the switch handle 16, thereby closing or opening the radial air intake channel 111 and adjusting the volume of the radial intake air.
- the annular windshield ring 15 can be manually driven or automatically driven.
- the automatic drive device can be composed of transmission structure and motor drive.
- anelectric push rod can be adopted to drive the annular windshield ring 15 to move back and forth, which is not specifically described here.
- the annular windshield ring 15 can be manually driven to move to close the radial air intake channel 111, thereby reducing the air intake area and air intake volume and realizing axial air intake only, so that the wind coming out of the front net 17 is warmer and more uniform.
- the annular windshield ring 15 can be manually driven to move to open the radial air intake channel 111,thus realizing the simultaneous radial and axial air intake in both directions, and thus increasing the air intake area and air intakevolume, so that the wind coming out of the front net 17 is stronger and cooler.
- the processes of opening and closing the radial air intake channel are the two most basic states of the implementation of the present invention. Of course, it is also possible to choose any real-time state between these two states to adjust the volume of the radial intake air.
- the opening size and closing size of theradial air intake channel depends on the actual demand of product design.
- the manual and automatic opening and closing modes also depend on the positioning of the product, which are not restrictedor described herein. It is to be understood that the above-described embodiments are merely given for clearly illustratingbut not limiting the embodiments. It will be apparent to one of ordinary skill in the art that other different forms of changes or variations can be made on the basis of the above description. It is to be understood that various changes or modifications may be made herein without departing from the scope of the invention as defined by the appended claims.
Abstract
Description
- The invention relates to the technical field of air conditioning, in particular to a channel-variable cooling and heating circulatingfan.
- Heater or fan is necessary electric appliance in modern home. At present available product on the market either is a single heater, or is a single fan. There is a lack of products that have both the heating function of a heater and the blowing function of a fan, especially lack of cooling and heating circulatingfan. Cooling and heating circulatingfan can be used as a heater, also as a fan, so it is a multi-purpose machine with both cooling and heating functions. Since the cooling and heating circulating fan always has a fixed product structure, blades of an axial fan suck air from the radial direction and the axial direction simoutaniously, and the air intake volume is large. When a warm wind is needed, the hot wind blown out is also mixed with cold wind, resulting in poor body feelingespecially around the entire wind outlet net.
- For example, Chinese patent literature
CN 206903897 discloses a dual electric natural wind/warm air circulation fan. When used as a heater, the radial air intake does not pass through the heating body. Therefore, the hot air blown out is obviously mixed with cold air, with a strong wind force, which gives the user an unsatisfactory body feeling. In order to improve the heating problems of axial flow blades in cooling and heating circulating fans, it is urgent to optimize the structure of existing cooling and heating circulating fans, so as to satisfy people's comfort in heating without affecting the cold air volume. - The objective of the present invention is to solve the technical problems that hot air supply by existing axial flow cooling and heating circulatingfans is large in air volume and is mixed with cold air which causes unsatisfactory body feeling. Therefore, the present invention provides a channel-variable cooling and heating circulatingfan, which can realize the adjustment of the cooling air volume, and can well improve the body feeling during heating.
- In order to achieve the above objective, the following technical solutions are provided in the present invention:
In some embodiments, the present invention provides a channel-variable cooling and heating circulating fan, comprising a rear net cover, a drive device, a heating component anda fan blade, wherein the drive device and the heating component are arranged inside the rear net cover, and the drive device has a rotatableshaft going through the heating component to connect to the fan blade; the rear net cover is provided with a radial air intake channel of an annular shape thereon between the fan blade and the heating component, and a sealed annular air channel is formed on a front end of the rear net cover and is communicated with the radial air intake channel; characterize in that, the radial air intake channel is provided with an annular windshield ring, and the annular windshield ring has an axial size greater than or equal to an axial size of the radial air intake channel, and is capable of axially moving into and out of a position where the radial air intake channel is located, thereby controlling the opening and closing of the radial air intake channel. - In some further embodiments, the annular windshield ring is an annular housing of a cylindricalshape, which is sleeved outside or inside the rear net cover and forms a slidable connection with the rear net cover in the axial direction.
- In some embodiments, the rear net cover is provided with a guide groove or guide rib arranged axially, the annular windshield ring is provided with a corresponding guide rib or guide groove on the housing thereof, and the annular windshield ring is slidable with respect to the rear net cover along the axial direction.
- In some embodiments, the heating component comprises a heating support and a heating body, wherein an axial air channel is formed inside the heating support and is airtight in a circumferential direction, and wherein the heating body is fixed inside the axial air channel of the heating support, and the heating support forms a detachable fixing connection with the rear net cover, and wind generated by the fan blade blows through the axial air channel and the heating body into the sealed annular air channel and flows out therefrom.
- Preferably, the annular windshield ring is arrangedinside the heatingsupport, and is provided with an switch handle thereon radially extending out through an axial elongated hole of the heating support and extending out of an outer side of the rear net cover; the annular windshield ring is driven to move along an inner side of the heating support by axially moving the switch handle, thereby gradually closing or opening the radial air intake channel on the rear net cover.
- Preferably, the axial air channel is a tapered air channel with a ventilation cross-section size which decreases gradually in a direction towards the fan blade.
- Preferably, the radial air intake channel consists of a plurality rows of grids or air holes axially arranged on the rear net cover.
- In some embodiments, a front net is further provided in front of the rear net cover and forms a detachable fixed connection with the sealed annular air channel.
- In some embodiments, the cooling and heating circulating fan is also provided with a base which is in a rotary connection with the outer side of the rear net cover.
- The technical solutions of the present invention have the following advantages:
- A.In the present invention, an annular windshield ring is provided on the radial air intake channel of the rear net cover. The annular windshield ringis capable of axially moving, thereby controlling the opening and closing of the radial air intake channel, realizing switch between cold air and warm air, thus avoding mixing of cold air in warm air and effectively improving the user's body feeling. Meanwhile, in the case of cold air, the annular windshield ring can also be used to adjust the air inlet size of the radial air inlet channel, so that the air intakevolume of the radial cold air can be adjusted and the total amount of air outputcan be controlled, and thus the user experience can be better.
- B.In one embodiment of the present invention, the axial air channel is a tapered air channel,so that surrounding aircan be effectively collected to form anintake air flow, and the intake air flow can be blown out intensively and evenly,thus the blowing feeling is stronger.Such structure is simple and novel.The axial moving of the annular windshield ring can realize the opening and closing control of the radial air intake channel, so that the radial air intake volume can be well controlled without reducing the air intake volume in the axial air channel, thus users get more moderate experience when heating.
- C.In the present invention, the annular windshield ring works together with the tapered axial air channelto fully optimize the performance of the product under the condition of warm air on the one hand and also rapidly heat up the environment within a certain space and shotenthe heating time on the other hand, so that users can get warmth in the shortest time and thus get more comfortable experience.
- In order to make the contents of the invention easier to be clearly understood, the present invention is further described according to the appended drawings.It should be understood that the appended drawings described below show some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without paying any creative labor.Brief description of the drawings are as below:
-
Figure 1 is a three-dimensional diagram of a cooling and heating circulating fan provided by the present invention; -
Figure 2 is athree-dimensional diagram showing an exploded view of the body inFigure 1 . -
Figure 3 is a three-dimensional diagram of the annular windshield ring inFigure 1 . -
Figure 4 is a sectional view of a local area whenboth radial and axial intake air are allowed(showing a schematic diagram of air flow when the annular windshield ring is in an opening state); -
Figure 5 is a sectional view of alocal area when the axial intake air is allowed but the radial air intake channel is closed (showing a schematic diagram of air flow when the annular windshield ring is in a closing state); -
Figure 6 is a schematic diagram of cold wind state when the annular windshield ring is in an opening state; -
Figure 7 is a schematic diagram of warm wind state when the annular windshield ring is in a closing state. - Reference numbers:
- 1- Body;
- 11 - Rear net cover;
- 111- Radial air intake channel;
- 112- Sealed annular air channel;
- 113- Intake air grids;
- 12- Drive device;
- 121- Motor, 122- Motor cover;
- 13- Heating component;
- 131- Heating support;
- 132- Heating body;
- 14- Fan blade;
- 15- Annular windshield ring;
- 16- Switch handle;
- 17- Front net;
- 2-Base;
- a- Axial air channel;
- b- Axial elongated hole;
- c- Guide groove or guide rib.
- The techinical solutions of the present invention will be described clearly and completely in combination with the appended drawings. Obviously, the described embodiments are just some of the embodiments of the invention rather than all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without paying any creative labor shall fall within the protection scope of the present invention.
- As shown in
Figure 1 and Figure 2 , the present invention provides a channel-variable cooling and heating circulating fan, generally comprising abody 1 and a base 2.Thebody 1 comprises arear net cover 11, adrive device 12, aheating component 13, afan blade 14 and front net17.Thefront net 17 forms a detachable fixed connection with a sealedannular air channel 112, for providng safety protection and allowing output of wind. Thedrive device 12 and theheating component 13 are arranged inside the rearnet cover 11. Thedrive device 12 has a rotatableshaft going through theheating component 13 to connect to thefan blade 14. The rearnet cover 11 is provided with a radialair intake channel 111 of an annular shape thereon between thefan blade 14 and theheating component 13, and a sealedannular air channel 112 is formed on a front end of the rear net cover 11.For example, the sealed annular air channel112is a cylindrical housing formed by looping a plate without holes into a ring.The rearnet cover 11 is of gridded structure, and aclosed air intakegrid 113 is formed at the rear end thereof.Motor 121 is installed at the bottom of the inner cavity of the rearnet cover 11.Motor cover 122 covers themotor 121 and is fixed together with the rearnet cover 11. The sealedannular air channel 112 and theradialair intake channel 111 are connected coaxially and successively. The radialair intake channel 111 is provided with anannular windshield ring 15. Theannular windshield ring 15 has an axial size greater than or equal to an axial size of the radialair intake channel 111, and is capable of axially moving into and out of a position where the radialair intake channel 111 is located. When the annular windshield ring15 is moved into the entire position of the radialair intake channel 111, theradialair intake channel 111 will be completely blocked, realizing the closing of theradialair intake channel 111, thereby preventing outside air from entering into these aledannular air channel 112 through the radial air intake channel 111.Of course, when theannular windshield ring 15 is moved out of the position of the radialair intake channel 111, the radialair intake channel 111 will be opened. Therefore, when heating mode is required, the user can choose to move theannular windshield ring 15 into the position of the radialair intake channel 111 to completely cover the the radialair intake channel 111, thus blocking intake of radial wind. Axial wind produced by the rotating of the fan blade enters though intake air grids 113at the rear end of the rearnet cover 11 and blows though the heating component, so that the hot wind blown out does not comprise cold wind. Of course, when warm air is not needed, the user can adjust the position of theannular windshield ring 15 according to specific conditions, thus the user can control the air volume by completely or partially opening the radial air intake channel according to personal preference. - As shown in
Figure4 , theannular windshield ring 15 is arranged movably in a position between the sealedannular air channel 112 and theheating component 13, i.e. the position of the axial direction air intake channel 111as shown inFigure 3 . Theannular windshield ring 15 is of a sizethat can completely covering theradialair intake channel 111. Herein the term "size" includes area, diameter, dimensions and shape, etc. The purpose is that it can close the radialair intake channel 111. Preferably, theannular windshield ring 15 adopted in the present invention is an annular housing of a cylindrical shape, which is sleeved outside or inside the rearnet cover 11 and forms a slidable connection with the rearnet cover 11 in the axial direction.Preferably, theannular windshield ring 15 is arranged inside the rearnet cover 11 in the present invention. - The rear
net cover 11 is provided with a guide groove or guide rib arranged axially thereon, and theannular windshield ring 15 is provided with a corresponding guide rib or guide groove "c"on the housing thereof, so that the guide groove or guide ribon the rearnet cover 11 can engage with the guide rib or guide groove on theannular windshield ring 15, and the annular windshield ring15 is slidable with respect to the rearnet cover 11 along the axial direction to realize the opening and closing of the radialair intake channel 111. Of course, the guidefeatures can also be arrange on theheating support 131 and theannular windshield ring 15. For example, two or more guidefeatures such as concave or convexcan be provided on theannular windshield ring 15, and theheating support 131 can be provided with corresponding guidefeaturesthereon which can match with the guide featureson the annular windshield ring 15.The specific matching section and shape of the guide features are not limited in the present invention. The guidefeaturesare given for schematically showing but not limiting the present invention, Other features or ways with guiding effect can also be used in the present invention. The purpose of the guide is to allow the annular windshield ring15 to slide back and forth more smoothly, preventing the annular windshield ring15 from rotating in a circular direction. - As shown in
Figure 2 , theheating component 13 comprises aheating support 131 and a heating body 132.An axial air channel "a" is formed inside theheating support 131 and is airtight in a circumferential direction. As shown inFigure 6 , theheating body 132 is fixed inside the axial air channel "a" of theheating support 131, and theheating support 131 forms a detachable fixed connection with the rearnet cover 11, so that wind generated by thefan blade 14 passes throughintake air grids 113 and blows through the axial air channel "a" and theheating body 132 into the sealedannular air channel 112 and flows out therefrom.Theheating body 132 adopted here are those existing in prior art, so its structural characteristics will not be described here. - In one embodiment, the
annular windshield ring 15 is arranged inside theheating support 131, and is provided with an switch handle 16thereon.The switch handle 16radially extends out through an axial elongated hole "b"of theheating support 131 and extends out of an outer side of the rear net cover 11.Theannular windshield ring 15 is driven to move along a side of theheating support 131 by axially moving theswitch handle 16, thereby gradually closing or opening the radialair intake channel 111 on the rearnet cover 11. Preferably, the switch handle 16 is fixed to anedge of the annular windshield ring 15.One or more switch handles 16 can be provided. There is no restriction to the number of the switch handles. Theannular windshield ring 15 and the switch handle 16 may be integrated as a whole or may be separate parts, which is not restricted in the present invention.The purpose of the switch handle is just for easy operation to help moving the annular windshield ring15. - As shown in
Figures6 and7 , the structureof theheating support 131 shows that an inner side of theheating support 131 forms an axial air channel "a" which is tapered in shape and has a ventilation cross-section size decreasing gradually in a direction towards thefan blade 14, so that surrounding air can be effectively collectedto form an intake air flow, and the user experience can be better. - Herein the radial
air intake channel 111 consists of a plurality rows of grids or air holes axially arranged on the rearnet cover 11. The mesh size of the grids or air holes on the rearnet cover 11 is not specifically restricted. - The outer side of the rear
net cover 11 forms a rotary connection with thebase 2. The structure of thebase 2 is known in prior art, so itwill not be described here. - As shown in
Figure 2 , themotor 121 and its shaft, front net 17, rearnet cover 11 andfanblade 14 in the present invention are coaxialalong a central axis; In particular, the rearnet cover 11,heating support 131 and sealed annular air channel112 are coaxialalong a central axis. - The
annular windshield ring 15 is movableor slidable back and forth along the central axis with the assistance of the guide groove or guide ribunder the action of theswitch handle 16, thereby closing or opening the radialair intake channel 111 and adjusting the volume of the radial intake air. Of course, theannular windshield ring 15 can be manually driven or automatically driven. When theannular windshield ring 15 isautomatically driven, the automatic drive device can be composed of transmission structure and motor drive. For example, anelectric push rod can be adopted to drive theannular windshield ring 15 to move back and forth, which is not specifically described here. - As shown in
Figures 5 and7 , when warm air is needed, theannular windshield ring 15 can be manually driven to move to close the radialair intake channel 111, thereby reducing the air intake area and air intake volume and realizing axial air intake only, so that the wind coming out of the front net 17 is warmer and more uniform. - As shown in
Figures 4 and6 , theannular windshield ring 15 can be manually driven to move to open the radialair intake channel 111,thus realizing the simultaneous radial and axial air intake in both directions, and thus increasing the air intake area and air intakevolume, so that the wind coming out of the front net 17 is stronger and cooler. - As describedabove, the processes of opening and closing the radial air intake channel are the two most basic states of the implementation of the present invention. Of course, it is also possible to choose any real-time state between these two states to adjust the volume of the radial intake air. The opening size and closing size of theradial air intake channel depends on the actual demand of product design. The manual and automatic opening and closing modes also depend on the positioning of the product, which are not restrictedor described herein.
It is to be understood that the above-described embodiments are merely given for clearly illustratingbut not limiting the embodiments. It will be apparent to one of ordinary skill in the art that other different forms of changes or variations can be made on the basis of the above description. It is to be understood that various changes or modifications may be made herein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
- A channel-variable cooling and heating circulating fan, comprising a rear net cover (11), a drive device (12), a heating component (13) anda fan blade (14),
wherein the drive device (12) and the heating component (13) are arranged inside the rear net cover (11), and the drive device (12) has a rotatableshaft going through the heating component (13) to connect to the fan blade(14);
the rear net cover (11) is provided with a radial air intake channel of an annular shape thereon between the fan blade (14) and the heating component (13), and a sealed annular air channel (112) is formed on a front end of the rear net cover (11)and is communicated with the radial air intake channel(111);
characterize in that,
the radial air intake channel (111) is provided with an annular windshield ring (15), and
the annular windshield ring (15) has an axial size greater than or equal to an axial size of the radial air intake channel (111), and is capable of axially moving into and out of a position where the radial air intake channel(111) is located, thereby controlling the opening and closing of the radial air intake channel (111). - The channel-variable cooling and heating circulating fan according to claim 1, characterize in that, the annular windshield ring (15) is an annular housing of a cylindrical shape, which is sleeved outside or inside the rear net cover (11) and forms a slidable connection with the rear net cover (11) in the axial direction.
- The channel-variable cooling and heating circulating fan according to claim 2, characterize in that, the rear net cover (11) is provided with a guide groove or guide rib arranged axially thereon, the annular windshield ring (15) is provided with a corresponding guide rib or guide groove on the housing thereof, and the annular windshield ring (15) is slidable with respect to the rear net cover (11) along the axial direction.
- The channel-variable cooling and heating circulating fan according to claim 1, characterize in that, the heating component (13) comprises a heating support (131) and a heating body (132),
wherein an axial air channel (a) is formed inside the heating support (131) and is airtight in a circumferential direction, and
wherein the heating body (132) is fixed inside the axial air channel (a) of the heating support (131), and the heating support (131) forms a detachable fixing connection with the rear net cover (11), and wind generated by the fan blade (14) blows through the axial air channel (a) and the heating body (132) into the sealed annular air channel (112) and flows out therefrom. - The channel-variable cooling and heating circulating fan according to claim 4, characterize in that,
the annular windshield ring (15) is arranged inside the heating support (131), and is provided with an switch handle (16)thereon radially extending out through an axial elongated hole (b) of the heating support (131) and extending out of an outer side of the rear net cover (11);
the annular windshield ring (15) is driven to move along an inner side of the heating support (131) by axially moving the switch handle (16), thereby gradually closing or opening the radial air intake channel (111) on the rear net cover (11). - The channel-variable cooling and heating circulating fan according to claim 5, characterize in that, the axial air channel (a) is a tapered air channel with a ventilation cross-section size which decreases gradually in a direction towards the fan blade (14).
- The channel-variable cooling and heating circulating fan according to any one of claims 1-6, characterize in that, the radial air intake channel (111) consists of a plurality rows of grids or air holes axially arranged on the rear net cover (11).
- The channel-variable cooling and heating circulating fan according to claim 7, characterize in that, a front net (17) is further provided in front of the rear net cover (11) and forms a detachable fixed connection with the sealed annular air channel (112).
- The channel-variable cooling and heating circulating fan according to claim 1, characterize in that, the cooling and heating circulating fan is also provided with a base (2) which is in a rotary connection with the outer side of the rear net cover (11).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010292183 | 2020-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3896287A1 true EP3896287A1 (en) | 2021-10-20 |
EP3896287B1 EP3896287B1 (en) | 2022-07-13 |
Family
ID=71786746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20187120.9A Active EP3896287B1 (en) | 2020-04-14 | 2020-07-22 | Channel-variable cooling and heating circulatingfan |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3896287B1 (en) |
JP (1) | JP6912631B1 (en) |
CN (2) | CN113531639A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4823148Y1 (en) * | 1969-02-12 | 1973-07-05 | ||
JPS52110752U (en) * | 1976-02-19 | 1977-08-23 | ||
KR101186614B1 (en) * | 2012-01-06 | 2012-09-27 | 김동명 | Electric fan combination hot air system |
CN206903897U (en) | 2017-06-06 | 2018-01-19 | 深圳市联创电器实业有限公司 | The electricity consumption circulation fan of natural wind/warm wind two |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4602146A (en) * | 1984-04-09 | 1986-07-22 | Clairol Incorporated | Hand held hair dryer |
JPH09289912A (en) * | 1996-04-26 | 1997-11-11 | Yoshiji Yoshimura | Umbrella for golf and fan mounted at umbrella for golf |
US6739071B2 (en) * | 2002-03-01 | 2004-05-25 | Andis Company | Combined diffuser and concentrator for a hair dryer |
-
2020
- 2020-07-07 JP JP2020117187A patent/JP6912631B1/en active Active
- 2020-07-22 EP EP20187120.9A patent/EP3896287B1/en active Active
- 2020-08-11 CN CN202010803971.5A patent/CN113531639A/en active Pending
- 2020-08-11 CN CN202021660147.0U patent/CN212299153U/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4823148Y1 (en) * | 1969-02-12 | 1973-07-05 | ||
JPS52110752U (en) * | 1976-02-19 | 1977-08-23 | ||
KR101186614B1 (en) * | 2012-01-06 | 2012-09-27 | 김동명 | Electric fan combination hot air system |
CN206903897U (en) | 2017-06-06 | 2018-01-19 | 深圳市联创电器实业有限公司 | The electricity consumption circulation fan of natural wind/warm wind two |
Also Published As
Publication number | Publication date |
---|---|
EP3896287B1 (en) | 2022-07-13 |
JP6912631B1 (en) | 2021-08-04 |
CN212299153U (en) | 2021-01-05 |
CN113531639A (en) | 2021-10-22 |
JP2021169814A (en) | 2021-10-28 |
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