CN108035893A - A kind of double fan blade fans - Google Patents
A kind of double fan blade fans Download PDFInfo
- Publication number
- CN108035893A CN108035893A CN201711174817.0A CN201711174817A CN108035893A CN 108035893 A CN108035893 A CN 108035893A CN 201711174817 A CN201711174817 A CN 201711174817A CN 108035893 A CN108035893 A CN 108035893A
- Authority
- CN
- China
- Prior art keywords
- fan blade
- drive motor
- fan
- work drive
- blade
- 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.)
- Pending
Links
Classifications
-
- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of double fan blade fans for being related to fan art, including front shroud, back cover and fan base and the work drive motor being connected with fan base, the forward and backward cover is hollow out lattice structure, the fan includes ventilating duct, described ventilating duct one end is connected to form air outlet with preceding shroud rim, the other end is connected to form air inlet with rear shroud rim, and the air inlet is more than the air outlet；Main blade is provided with the ventilating duct, rear fan blade is provided with the back cover and is coaxially mounted to be driven by work drive motor on work drive motor with auxiliary air inlet, the main blade and rear fan blade.The ventilating duct can concentrate wind-force to have the function that water conservancy diversion, and increase the intensity of fan blowout wind；Fan blade is also integrally improved wind speed to auxiliary air inlet so as to avoid because of the problem of setting intake of ventilating duct is few after described.
Description
Technical field
The present invention relates to fan art, particularly a kind of double fan blade fans.
Background technology
In summer, can find to be placed with small fan by seat, because although there is air-conditioning in office in many working regions
Cold air opens, but is on duty when just open air-conditioning, and sweltering heat and air-conditioning due to working of coming hastily have just opened and be difficult to make room
Interior fast cooling, it has to first alleviate scorching, but environmental restrictions of office work area using fan, can only use small-sized
Fan, small-sized fans wind-force is small, and wind direction scope is relatively large, when blow to people position when be almost difficult to experience wind, it is difficult to
Alleviate scorching.
The content of the invention
It is contemplated that one of above problem in correlation technique is solved to a certain extent.For this reason, the present invention proposes one kind
Application environment is wide, can concentrate double fan blade fans of wind-force.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of double fan blade fans, including front shroud, back cover and fan base and the work drive motor that is connected with fan base, institute
It is hollow out lattice structure to state forward and backward cover, has further included ventilating duct, described ventilating duct one end is connected to form outlet air with preceding shroud rim
Mouthful, the other end is connected to form air inlet with rear shroud rim, and the air inlet is more than the air outlet；It is provided with the ventilating duct
Main blade, is provided with rear fan blade in the back cover and is coaxially mounted to work drive motor with auxiliary air inlet, the main blade and rear fan blade
Above driven and rotated by work drive motor.
It is outer recessed in the middle part of the back cover as the improvement of such scheme, form the cavity volume of accommodating rear fan blade.
Further as such scheme is improved, and the motor shaft of the work drive motor stretches out before and after work drive motor
Axis, the main blade are installed on the motor shaft front end, and the rear fan blade is installed on the motor shaft rear end.
Further, stent is fixedly connected with the work drive motor, the stent is rectangular frame structure, and middle part is provided with
The circular motor cover coordinated with work drive motor installation, the stent are connected fixation with the opening of the back cover.
Preferably, the master, rear fan blade are three blade constructions, and the main blade is 9 cun, and the rear fan blade is 4.7 cun.
Further, arc-shaped cover is provided with the outside of the ventilating duct makes fan structure beautiful.
The beneficial effects of the invention are as follows：The present invention a kind of double fan blade fans, including front shroud, back cover and fan base and
The work drive motor being connected with fan base, the forward and backward cover is hollow out lattice structure, and the fan includes ventilating duct, institute
State ventilating duct one end to be connected to form air outlet with preceding shroud rim, the other end is connected to form air inlet with rear shroud rim, the inlet air
Mouth is more than the air outlet；Main blade is provided with the ventilating duct, rear fan blade is provided with the back cover with auxiliary air inlet, institute
State main blade and rear fan blade is coaxially mounted to be driven by work drive motor on work drive motor.The ventilating duct can concentrate wind-force to reach
The effect of water conservancy diversion, and increase the intensity of fan blowout wind；Fan blade is to auxiliary air inlet after described, so as to avoid because of ventilating duct
The problem of setting intake few is also integrally improved wind speed.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is mounting structure schematic diagram of the present invention.
Embodiment
With reference to Fig. 1, a kind of double fan blade fans of the invention, including front shroud 1, back cover 2 and fan base 10 and and fan
The work drive motor 6 that base 10 connects, the forward and backward cover 1,2 is hollow out lattice structure, and the fan includes ventilating duct 5, institute
State 5 one end of ventilating duct to be connected to form air outlet 11 with 1 edge of front shroud, the other end is connected to form air inlet 21 with 2 edge of back cover, institute
State air inlet 21 and be more than the air outlet 11；Main blade 3 is provided with the ventilating duct 5, rear fan blade is provided with the back cover 2
4 are coaxially mounted to drive rotation by work drive motor 6 on work drive motor 6 with auxiliary air inlet, the main blade 3 and rear fan blade 4.Institute
Stating ventilating duct 5 can concentrate wind-force to have the function that water conservancy diversion, and increase the intensity of fan blowout wind；Fan blade 4 is aiding in after described
Inlet air, wind speed is also integrally improved so as to avoid because of the problem of setting intake of ventilating duct 5 is few.
In the present embodiment, the middle part of back cover 2 is outer recessed, forms the cavity volume of accommodating rear fan blade 4, the work drive motor 6
Motor shaft is through the front and rear axis stretched out of work drive motor 6, and the main blade 3 is installed on the motor shaft front end, the rear wind
Leaf 4 is installed on the motor shaft rear end.Stent 7 is fixedly connected with the work drive motor 6, the stent 7 is rectangular frame knot
Structure is to avoid keeping out the wind, the middle part is provided with the circular motor cover 71 coordinated with the installation of work drive motor 6, the stent 7 with it is described after
The opening connection of cover 2 is fixed, so that each component of fan directly or indirectly connects, increases the fan structure reasonability.
Through overtesting, the master of the present embodiment, rear fan blade are three blade constructions, and the main blade is 9 cun, after described
Fan blade is 4.7 cun, and the master, the cooperation of rear fan blade 3,4 make disengaging air quantity and wind speed reach best effect.Outside the ventilating duct 5
Side, which is provided with arc-shaped cover 8, makes fan structure is beautiful to coordinate.
Above concrete structure and dimension data are that presently preferred embodiments of the present invention is illustrated, but present invention wound
Make and be not limited to the embodiment, those skilled in the art can also make kind on the premise of without prejudice to spirit of the invention
The equivalent variations or replacement, these equivalent deformations or replacement of kind are all contained in the application claim limited range.
Claims (6)
1. a kind of double fan blade fans, including front shroud, back cover and fan base and the work drive motor that is connected with fan base, it is described
Forward and backward cover is hollow out lattice structure, it is characterised in that：Ventilating duct is further included, described ventilating duct one end connects with preceding shroud rim
Connect to form air outlet, the other end is connected to form air inlet with rear shroud rim, and the air inlet is more than the air outlet；The wind-guiding
Main blade is provided with cylinder, rear fan blade is provided with the back cover and is co-axially mounted with auxiliary air inlet, the main blade and rear fan blade
Driven and rotated by work drive motor on work drive motor.
A kind of 2. double fan blade fans according to claim 1, it is characterised in that：It is outer recessed in the middle part of the back cover, formed accommodating
The cavity volume of fan blade afterwards.
A kind of 3. double fan blade fans according to claim 2, it is characterised in that：The motor shaft of the work drive motor be through
The front and rear axis stretched out of work drive motor, the main blade are installed on the motor shaft front end, and the rear fan blade is installed on the electricity
Arbor rear end.
A kind of 4. double fan blade fans according to claim 3, it is characterised in that：Branch is fixedly connected with the work drive motor
Frame, the stent are rectangular frame structure, and middle part is provided with the circular motor cover coordinated with work drive motor installation, the stent with
The opening connection of the back cover is fixed.
A kind of 5. double fan blade fans according to claim 1, it is characterised in that：The master, rear fan blade are three blade knots
Structure, the main blade are 9 cun, and the rear fan blade is 4.7 cun.
A kind of 6. double fan blade fans according to Claims 1 to 5 any claim, it is characterised in that：The ventilating duct
Outside, which is provided with arc-shaped cover, makes fan structure beautiful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174817.0A CN108035893A (en) | 2017-11-22 | 2017-11-22 | A kind of double fan blade fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174817.0A CN108035893A (en) | 2017-11-22 | 2017-11-22 | A kind of double fan blade fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108035893A true CN108035893A (en) | 2018-05-15 |
Family
ID=62094162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174817.0A Pending CN108035893A (en) | 2017-11-22 | 2017-11-22 | A kind of double fan blade fans |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611354A (en) * | 2018-11-26 | 2019-04-12 | 珠海格力电器股份有限公司 | Fan with cooling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202914330U (en) * | 2012-08-09 | 2013-05-01 | 潘韵松 | Silence convection fan |
| CN203051185U (en) * | 2013-02-05 | 2013-07-10 | 施钦旺 | Portable fan with two fan blade sets |
| CN203114677U (en) * | 2013-01-27 | 2013-08-07 | 王龙有 | Mini fan provided with double fan blades |
| CN204942031U (en) * | 2015-07-27 | 2016-01-06 | 陈彦 | A kind of portablely to shake the head, Dual-blade group of nodding fan |
| CN204984989U (en) * | 2015-07-28 | 2016-01-20 | 常州市雷博机械有限公司 | Portable double leaf electric fan |
| CN105805032A (en) * | 2016-03-06 | 2016-07-27 | 淄博环能海臣环保技术服务有限公司 | Double-head air purification electric fan |
-
2017
- 2017-11-22 CN CN201711174817.0A patent/CN108035893A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202914330U (en) * | 2012-08-09 | 2013-05-01 | 潘韵松 | Silence convection fan |
| CN203114677U (en) * | 2013-01-27 | 2013-08-07 | 王龙有 | Mini fan provided with double fan blades |
| CN203051185U (en) * | 2013-02-05 | 2013-07-10 | 施钦旺 | Portable fan with two fan blade sets |
| CN204942031U (en) * | 2015-07-27 | 2016-01-06 | 陈彦 | A kind of portablely to shake the head, Dual-blade group of nodding fan |
| CN204984989U (en) * | 2015-07-28 | 2016-01-20 | 常州市雷博机械有限公司 | Portable double leaf electric fan |
| CN105805032A (en) * | 2016-03-06 | 2016-07-27 | 淄博环能海臣环保技术服务有限公司 | Double-head air purification electric fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611354A (en) * | 2018-11-26 | 2019-04-12 | 珠海格力电器股份有限公司 | Fan with cooling device |
| CN109611354B (en) * | 2018-11-26 | 2024-08-20 | 珠海格力电器股份有限公司 | Fan with fan body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |
|
| RJ01 | Rejection of invention patent application after publication |