CN205001225U - Draught fan - Google Patents
Draught fan Download PDFInfo
- Publication number
- CN205001225U CN205001225U CN201520574955.8U CN201520574955U CN205001225U CN 205001225 U CN205001225 U CN 205001225U CN 201520574955 U CN201520574955 U CN 201520574955U CN 205001225 U CN205001225 U CN 205001225U
- Authority
- CN
- China
- Prior art keywords
- external rotor
- electric machine
- cavity
- spiral case
- receiver
- 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.)
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a draught fan, including the spiral case, the wind wheel, external rotor electric machine and installing support, the cavity has been offered in the middle of the spiral case, the air intake has been seted up respectively and seted up the air outlet on the spiral case on the face of the both sides of spiral case, the air intake, the air outlet all communicates with the cavity, the wind wheel is located the cavity the inside, install the external rotor electric machine in the spiral case outside through the installing support, the air intake department of cavity, the shaft extension end of external rotor electric machine stretches into the cavity the inside and links together with the wind wheel, external rotor electric machine and wind wheel lie in the both sides of installing support respectively, a structure is simple, good stability.
Description
Technical field:
The utility model relates to a kind of blower fan.
Background technique:
In the blower fan of conventional application external rotor electric machine, the overwhelming majority is all the external rotor electric machine adopting single axle stretch end, external rotor electric machine and wind wheel are arranged on inside spiral case, wherein wind wheel adopts the production technology of suit or welding to be arranged on outside described external rotor electric machine, but fan blade installs comparatively trouble, complexity in this technological scheme, and because the weight of wind wheel is all pressed in external rotor side, namely the stressed of rotating shaft all concentrates on external rotor side, and opposite side is stressed hardly, the stability of equilibrium of external rotor electric machine will be caused so poor, swing larger.
Summary of the invention:
The purpose of this utility model is to provide a kind of blower fan, and its structure is simple, good stability.
The purpose of this utility model is achieved by following technical proposals.
A kind of blower fan, comprise spiral case, wind wheel, external rotor electric machine and mounting bracket, cavity is offered in the middle of spiral case, the bi-side of spiral case offer intake grill respectively and offer exhaust outlet on spiral case, intake grill, exhaust outlet are all and cavity connects, wind wheel is positioned at inside cavity, by mounting bracket, external rotor electric machine is arranged on outside spiral case, the air inlet of cavity, the axle stretch end of external rotor electric machine extend into inside cavity and links together with wind wheel, and external rotor electric machine and wind wheel lay respectively at the both sides of mounting bracket.
Above-mentioned mounting bracket is arranged on the end face of the axle stretch end of external rotor electric machine.
Above-mentioned external rotor electric machine comprises rotating shaft, stator and external rotor, stator sleeve is located at inside external rotor, wherein stator comprises receiver, stator iron core, overhang insulation and coil winding, overhang insulation is arranged on the end face of stator iron core, coil winding is wound on overhang insulation, receiver is placed in the axis hole in the middle of stator iron core, bearing chamber is offered respectively at receiver two ends, inside bearing chamber, bearing is installed, rotating shaft is positioned at inside receiver and two ends and is bearing on described bearing respectively, and rotating shaft one end extend into inside external rotor and links together with external rotor.
Said stator is a plastic packaging stator, it also comprises plastic-sealed body, plastic-sealed body connects to one described receiver, stator iron core, overhang insulation and coil winding, plastic packaging end plate is set on stator iron core side, plastic-sealed body, rotating shaft two ends are stretched out outward respectively in the middle of receiver, wherein one end extend into inside external rotor and links together with external rotor, and the other end extends to form described axle stretch end outward in the middle of plastic packaging end plate.
Above-mentioned mounting bracket comprises the some installation feet being positioned at middle annulus and stretching out toward outside from annulus, on the end face that annulus is positioned at plastic packaging end plate and both be fixed together by some screw lock, the some installation feet stretched out toward outside from annulus are arranged on the outer side surface of intake grill periphery, spiral case.
Above-mentionedly from the top of receiver, stretch out several support arms toward outside, the outboard end of support arm offers tapped hole, plastic-sealed body is wrapped in the outside of described support arm and tapped hole is exposed from the end face of plastic-sealed body, and screw is through annulus and inside the tapped hole being screwed into its correspondence thus roller lock is fastened on plastic packaging end plate.
Above-mentionedly on the end face of plastic packaging end plate, be provided with controller, controller comprises Direct box and is arranged on the control circuit board inside Direct box, extend into inside cavity again and link together with wind wheel after the axle stretch end of rotating shaft passes from controller.
Above-mentioned external rotor electric machine is DC brushless outer rotor motor, and wherein external rotor comprises casing sleeve and pastes the some permanent magnets be arranged on casing sleeve lining face.
The utility model compared with prior art, has following effect:
1) by mounting bracket, external rotor electric machine is arranged on outside spiral case, the air inlet of cavity, the axle stretch end of external rotor electric machine extend into inside cavity and links together with wind wheel, external rotor electric machine and wind wheel lay respectively at the both sides of mounting bracket, the external rotor of rotation and wind wheel is made to lay respectively at the two ends of rotating shaft, reach the object of rotating shaft two ends force balance, be conducive to the stability improving blower fan structure like this, reduce swing during external rotor electric machine running, and adopt wind wheel to be directly installed on the mount scheme of the axle stretch end of external rotor electric machine, the production technology of suit or welding is adopted to be arranged on mount scheme outside external rotor electric machine compared to existing wind wheel, install simpler, convenient, reliability and stability are higher,
2) mounting bracket comprises the some installation feet being positioned at middle annulus and stretching out toward outside from annulus, on the end face that annulus is positioned at plastic packaging end plate and both be fixed together by some screw lock, the some installation feet stretched out toward outside from annulus are arranged on the outer side surface of intake grill periphery, spiral case, this structure is simple, easy for installation, reliable;
3) from the top of receiver, several support arms are stretched out toward outside, the outboard end of support arm offers tapped hole, plastic-sealed body is wrapped in the outside of described support arm and tapped hole is exposed from the end face of plastic-sealed body, screw is through annulus and inside the tapped hole being screwed into its correspondence thus roller lock is fastened on plastic packaging end plate, first, effectively can be increased the structural strength of plastic packaging stator by support arm, secondly also can increase the adhesive strength between plastic packaging stator and mounting bracket;
4) on the end face of plastic packaging end plate, controller is installed, controller comprises Direct box and is arranged on the control circuit board inside Direct box, extend into again inside cavity after the axle stretch end of rotating shaft passes from controller and link together with wind wheel, structure is simple, compact, effectively reduces the space for mount controller.
Accompanying drawing illustrates:
Fig. 1 is the stereogram of blower fan in embodiment one;
Fig. 2 is the explosive view of blower fan in embodiment one;
Fig. 3 is the side view of blower fan in embodiment one;
Fig. 4 is A-A line sectional view in Fig. 3;
Fig. 5 is the partial enlarged drawing of part B in Fig. 4;
Fig. 6 is the structural representation of blower fan in embodiment two;
Fig. 7 is the stereogram of air conditioner outdoor machine in embodiment three;
Fig. 8 is the explosive view of air conditioner outdoor machine in embodiment three;
Fig. 9 is the structural representation that in embodiment three, external rotor electric machine and fan blade are installed.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: as shown in Figures 1 to 5, the present embodiment is a kind of blower fan, comprise spiral case 1, wind wheel 2, external rotor electric machine 3 and mounting bracket 4, cavity 10 is offered in the middle of spiral case 1, the bi-side of spiral case 1 offer intake grill 11 respectively and offer exhaust outlet 12 on spiral case 1, intake grill 11, exhaust outlet 12 is all communicated with cavity 10, wind wheel 2 is positioned at inside cavity 10, by mounting bracket 4, external rotor electric machine 3 is arranged on outside spiral case 1, intake grill 11 place of cavity 10, the axle stretch end 30 of external rotor electric machine 3 extend into inside cavity 10 and links together with wind wheel 2, external rotor electric machine 3 and wind wheel 2 lay respectively at the both sides of mounting bracket 4.
Wherein external rotor electric machine 3 is DC brushless outer rotor motors, comprise rotating shaft 31, stator 32 and external rotor 33, stator 32 is sheathed on inside external rotor 33, wherein stator 32 is plastic packaging stators, it comprises receiver 321, stator iron core 322, overhang insulation 323, coil winding 324 and plastic-sealed body 325, overhang insulation 323 is arranged on the end face of stator iron core 322, coil winding 324 is wound on overhang insulation 323, receiver 321 is placed in the axis hole in the middle of stator iron core 322, plastic-sealed body 325 is described receiver 321, stator iron core 322, overhang insulation 323 and coil winding 324 connect to one, in stator iron core 322 side, plastic-sealed body 325 is arranged plastic packaging end plate 3251, bearing chamber 3210 is offered respectively at receiver 321 two ends, bearing 5 is installed inside bearing chamber 3210, rotating shaft 31 is positioned at inside receiver 321 and two ends and is bearing on described bearing 5 respectively, rotating shaft 31 two ends are stretched out outward respectively in the middle of receiver 321, wherein one end extend into inside external rotor 33 and links together with external rotor 33, the other end extends to form described axle stretch end 30 outward in the middle of plastic packaging end plate 3251.And external rotor 33 comprises casing sleeve 331 and pastes the some permanent magnets 332 be arranged on casing sleeve 331 internal face.
Mounting bracket 4 comprises the some installation feet 42 being positioned at middle annulus 41 and stretching out toward outside from annulus 41, on the end face that annulus 41 is positioned at plastic packaging end plate 3251 and both are locked together by some screws 6, the some installation feet 42 stretched out toward outside from annulus 41 are arranged on that intake grill 12 is peripheral, on the outer side surface of spiral case 1.Several support arms 3211 are stretched out toward outside from the top of receiver 321, the outboard end of support arm 3211 offers tapped hole 3212, plastic-sealed body 325 is wrapped in the outside of described support arm 3211 and tapped hole 3212 is exposed from the end face of plastic-sealed body 325, and screw 6 is through annulus 41 and inside the tapped hole 3212 being screwed into its correspondence thus annulus 41 is locked on plastic packaging end plate 3251.
Embodiment two: as shown in Figure 6, be with the difference of embodiment one: on the end face of plastic packaging end plate 3251, controller 7 is installed, controller 7 comprises Direct box 71 and is arranged on the control circuit board 72 inside Direct box 71, and the axle stretch end 30 of rotating shaft 31 links together from extending into inside cavity 10 after controller 7 passes with wind wheel 2 again.
Embodiment three: as shown in Figure 7, Figure 8 and Figure 9, and the present embodiment is a kind of air conditioner outdoor machine, comprise air conditioning box body 8, external rotor electric machine 3, fan blade 9 and mounting bracket 4.By mounting bracket 4, external rotor electric machine 3 is arranged on inside air conditioning box body 8, wherein external rotor electric machine 3 is DC brushless outer rotor motors, comprise rotating shaft 31, plastic packaging stator 32 and external rotor 33, plastic packaging stator 32 is sheathed on inside external rotor 33, wherein plastic packaging stator 32 comprises receiver 321, stator iron core 322, overhang insulation 323, coil winding 324 and plastic-sealed body 325, overhang insulation 323 is arranged on the end face of stator iron core 322, coil winding 324 is wound on overhang insulation 323, receiver 321 is placed in the axis hole in the middle of stator iron core 322, plastic-sealed body 325 is described receiver 321, stator iron core 322, overhang insulation 323 and coil winding 324 connect to one, in stator iron core 322 side, plastic-sealed body 325 is arranged plastic packaging end plate 3251, bearing chamber 3210 is offered respectively at receiver 321 two ends, bearing 5 is installed inside bearing chamber 3210, rotating shaft 31 is positioned at inside receiver 321 and two ends and is bearing on described bearing 5 respectively, rotating shaft 31 two ends are stretched out outward respectively in the middle of receiver 321, wherein one end extend into inside external rotor 33 and links together with external rotor 33, the other end extends to form axle stretch end 30 outward in the middle of plastic packaging end plate 3251, fan blade 9 is arranged on described axle stretch end 30, thus make external rotor 33 and fan blade 9 lay respectively at the two ends of rotating shaft 31, reach the object of rotating shaft 31 two ends force balance, be conducive to the stability improving air conditioner outdoor unit structure like this, reduce swing during external rotor electric machine running.
Above embodiment is better embodiment of the present invention; but embodiments of the present invention are not limited thereto; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a blower fan, comprise spiral case (1), wind wheel (2), external rotor electric machine (3) and mounting bracket (4), cavity (10) is offered in the middle of spiral case (1), the bi-side of spiral case (1) offer intake grill (11) respectively and offer exhaust outlet (12) on spiral case (1), intake grill (11), exhaust outlet (12) is all communicated with cavity (10), wind wheel (2) is positioned at cavity (10) the inside, it is characterized in that: by mounting bracket (4), external rotor electric machine (3) is arranged on spiral case (1) outside, intake grill (11) place of cavity (10), the axle stretch end (30) of external rotor electric machine (3) extend into cavity (10) the inside and links together with wind wheel (2), external rotor electric machine (3) and wind wheel (2) lay respectively at the both sides of mounting bracket (4).
2. a kind of blower fan according to claim 1, is characterized in that: mounting bracket (4) is arranged on the end face of axle stretch end (30) of external rotor electric machine (3).
3. a kind of blower fan according to claim 2, it is characterized in that: described external rotor electric machine (3) comprises rotating shaft (31), stator (32) and external rotor (33), stator (32) is sheathed on external rotor (33) the inside, wherein stator (32) comprises receiver (321), stator iron core (322), overhang insulation (323) and coil winding (324), overhang insulation (323) is arranged on the end face of stator iron core (322), coil winding (324) is wound on overhang insulation (323), receiver (321) is placed in the axis hole in the middle of stator iron core (322), bearing chamber (3210) is offered respectively at receiver (321) two ends, in bearing chamber (3210) the inside, bearing (5) is installed, rotating shaft (31) is positioned at receiver (321) the inside and two ends are bearing on described bearing (5) respectively, rotating shaft (31) one end extend into external rotor (33) the inside and links together with external rotor (33).
4. a kind of blower fan according to claim 3, it is characterized in that: described stator (32) is a plastic packaging stator, it also comprises plastic-sealed body (325), plastic-sealed body (325) is described receiver (321), stator iron core (322), overhang insulation (323) and coil winding (324) connect to one, in stator iron core (322) side, plastic-sealed body (325) is arranged plastic packaging end plate (3251), rotating shaft (31) two ends are stretched out outward respectively in the middle of receiver (321), wherein one end extend into inside external rotor (33) and links together with external rotor (33), the other end extends to form described axle stretch end (30) outward in the middle of plastic packaging end plate (3251).
5. a kind of blower fan according to claim 4, it is characterized in that: described mounting bracket (4) comprises the some installation feet (42) being positioned at middle annulus (41) and stretching out toward outside from annulus (41), on the end face that annulus (41) is positioned at plastic packaging end plate (3251) and both are locked together by some screws (6), the some installation feet (42) stretched out toward outside from annulus (41) are arranged on the outer side surface of intake grill (12) periphery, spiral case (1).
6. a kind of blower fan according to claim 5, it is characterized in that: it is characterized in that: from the top of receiver (321), stretch out several support arms (3211) toward outside, the outboard end of support arm (3211) offers tapped hole (3212), plastic-sealed body (325) is wrapped in the outside of described support arm (3211) and tapped hole (3212) is exposed from the end face of plastic-sealed body (325), screw (6) through annulus (41) and be screwed into its correspondence tapped hole (3212) the inside thus annulus (41) is locked on plastic packaging end plate (3251).
7. a kind of blower fan according to claim 4 or 5 or 6, it is characterized in that: it is characterized in that: controller (7) is installed on the end face of plastic packaging end plate (3251), controller (7) comprises Direct box (71) and is arranged on the control circuit board (72) of Direct box (71) the inside, and the axle stretch end (30) of rotating shaft (31) links together from extending into cavity (10) the inside again after controller (7) passes with wind wheel (2).
8. a kind of blower fan according to claim 3 or 4 or 5 or 6, it is characterized in that: described external rotor electric machine is DC brushless outer rotor motor, wherein external rotor (33) comprises casing sleeve (331) and stickup and is arranged on some permanent magnets (332) on casing sleeve (331) internal face.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574955.8U CN205001225U (en) | 2015-07-31 | 2015-07-31 | Draught fan |
| PCT/CN2016/075894 WO2017020589A1 (en) | 2015-07-31 | 2016-03-08 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574955.8U CN205001225U (en) | 2015-07-31 | 2015-07-31 | Draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001225U true CN205001225U (en) | 2016-01-27 |
Family
ID=55158116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520574955.8U Active CN205001225U (en) | 2015-07-31 | 2015-07-31 | Draught fan |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205001225U (en) |
| WO (1) | WO2017020589A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020589A1 (en) * | 2015-07-31 | 2017-02-09 | 中山大洋电机股份有限公司 | Fan |
| CN106640702A (en) * | 2016-11-29 | 2017-05-10 | 佛山市顺德区卓高电机制造有限公司 | Direct-current brushless fan device |
| CN107846112A (en) * | 2017-11-18 | 2018-03-27 | 中山大洋电机股份有限公司 | A kind of blower fan |
| CN108843592A (en) * | 2018-06-20 | 2018-11-20 | 温州市爱光机电设备有限公司 | A kind of blower |
| WO2022116240A1 (en) * | 2020-12-04 | 2022-06-09 | 中山大洋电机股份有限公司 | Volute fan and exhaust fan using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738668A (en) * | 2020-05-29 | 2021-12-03 | 宁波奥克斯电气股份有限公司 | Volute component and air duct machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296769A (en) * | 1992-01-24 | 1994-03-22 | Electrolux Corporation | Air guide assembly for an electric motor and methods of making |
| JP2005036679A (en) * | 2003-07-17 | 2005-02-10 | Matsushita Electric Ind Co Ltd | Blower |
| JP2008280888A (en) * | 2007-05-09 | 2008-11-20 | Hitachi Appliances Inc | Fluid machine and electric vacuum cleaner |
| CN201439762U (en) * | 2009-07-21 | 2010-04-21 | 中山大洋电机股份有限公司 | Air blower |
| CN101818740B (en) * | 2010-05-11 | 2012-01-04 | 大连理工大学 | High full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller |
| JP6417771B2 (en) * | 2014-07-31 | 2018-11-07 | 日本電産株式会社 | Electric blower |
| CN205001225U (en) * | 2015-07-31 | 2016-01-27 | 中山大洋电机股份有限公司 | Draught fan |
-
2015
- 2015-07-31 CN CN201520574955.8U patent/CN205001225U/en active Active
-
2016
- 2016-03-08 WO PCT/CN2016/075894 patent/WO2017020589A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020589A1 (en) * | 2015-07-31 | 2017-02-09 | 中山大洋电机股份有限公司 | Fan |
| CN106640702A (en) * | 2016-11-29 | 2017-05-10 | 佛山市顺德区卓高电机制造有限公司 | Direct-current brushless fan device |
| CN107846112A (en) * | 2017-11-18 | 2018-03-27 | 中山大洋电机股份有限公司 | A kind of blower fan |
| CN107846112B (en) * | 2017-11-18 | 2024-04-30 | 中山大洋电机股份有限公司 | Fan |
| CN108843592A (en) * | 2018-06-20 | 2018-11-20 | 温州市爱光机电设备有限公司 | A kind of blower |
| WO2022116240A1 (en) * | 2020-12-04 | 2022-06-09 | 中山大洋电机股份有限公司 | Volute fan and exhaust fan using same |
| US12085090B2 (en) | 2020-12-04 | 2024-09-10 | Zhongshan Broad-Ocean Motor Co., Ltd. | Air blower and exhaust fan comprising the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017020589A1 (en) | 2017-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |