CN103026074B - Blower - Google Patents
Blower Download PDFInfo
- Publication number
- CN103026074B CN103026074B CN201180036372.4A CN201180036372A CN103026074B CN 103026074 B CN103026074 B CN 103026074B CN 201180036372 A CN201180036372 A CN 201180036372A CN 103026074 B CN103026074 B CN 103026074B
- Authority
- CN
- China
- Prior art keywords
- running shaft
- roller pin
- groove
- motor
- 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.)
- Active
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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
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- 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
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/068—Mechanical details of the pump control unit
-
- 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
- F04D25/088—Ceiling fans
Abstract
The invention provides a kind of blower, it comprises: motor, blade, housing, control circuit, roller pin and hub portion, hub portion is provided with groove, this groove has the opening portion and the bottom that are used for engaging roller pin at the inserting side end face of running shaft, the sidewall of groove is provided with from bottom towards the gradient that opening portion expands, in a part for sidewall, with the central shaft of roller pin for starting point and towards opening portion, the longitudinal direction of running shaft relatively forms parallel straight section, and the distance between relative straight section is identical with the diameter of roller pin.
Description
Technical field
The present invention relates to blower.
Background technique
Have a kind of blower, its blade can load and unload, and has groove at blade wheel hub, by the engaging of groove with roller pin (rollpin), plays the effect (such as with reference to patent documentation) of stop blade.
Below, with reference to Fig. 5 of the stereogram of the structure as the existing blower of expression, this blower is described.As shown in Figure 5, blade 101 has hub portion 102 at central part, has many pieces of blades 103 in its periphery.Be formed at the axis central part of hub portion 102: the running shaft 104(of motor only illustrates running shaft) axis hole 105 that inserts and engagement groove 107, blade 101 is in arrested state.In addition, be inserted into after in axis hole 105 at running shaft 104, nose shell (spinner) 108 is fixed on the forward end (not representing fixed mechanism in figure) of hub portion 102 by rotating, blade 101 is in the state of anticreep.Herein, engagement groove 107 is the grooves with axis hole 105 orthogonal direction, and the roller pin 106 being arranged on running shaft 104 engages.
In this existing blower, when the change in torque of motor and motor start-up, roller pin 106 and engagement groove 107 collide and sound.Have as its countermeasure, reduce roller pin 106 and prevent from colliding with the gap of engagement groove 107.But, be difficult to, at running shaft 104, blade 101 is installed, exist and thoroughly not such problem is installed.
Patent documentation
Patent documentation 1: Japanese Laid-Open Patent Publication 62-10532 publication
Summary of the invention
Blower of the present invention comprises: motor; By the blade of motoring; Cover the housing of the surrounding of blade; The control circuit of drive control motor; Cylindric roller pin, the axis of the running shaft of itself and motor is installed on the running shaft of motor at a right angle; With the hub portion being inserted into running shaft, hub portion is provided with groove, this groove has the opening portion and the bottom that are used for engaging roller pin at the inserting side end face of running shaft, the sidewall of groove is provided with and goes from bottom to opening portion the gradient that expands, in a part for sidewall, with the central shaft of roller pin for starting point is towards opening portion, the longitudinal direction of running shaft relatively forms parallel straight section, the distance between relative straight section is identical with the diameter of roller pin.
According to this structure, when by roller pin insertion groove, because the throat width of groove is larger than roller pin, therefore, in the easy insertion groove of roller pin.In addition, if roller pin is fixed on the position making blade rotary, then the width of groove is below the diameter of roller pin, so, prevent the impact sound of groove and roller pin.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the ceiling embedded type air exchange fan of the blower being equipped with embodiments of the present invention.
Fig. 2 is the figure of the inside representing the ceiling embedded type air exchange fan with this blower.
Fig. 3 is the details drawing in the A portion of Fig. 2.
Fig. 4 is the details drawing in the B portion of Fig. 2.
Fig. 5 is the stereogram of the structure representing existing blower.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described.
(mode of execution)
Fig. 1 is the exploded perspective view of the ceiling embedded type air exchange fan of the blower being equipped with embodiments of the present invention, and Fig. 2 is the figure of the inside representing the ceiling embedded type air exchange fan being equipped with this blower.Ceiling embedded type air exchange fan shown in Fig. 1,2 is arranged on the ceiling back side (not shown) in room with embedding.Ceiling embedded type air exchange fan is made up of suction port 1, framework 3, motor 4, blade 5, housing 6, decoration panel 7, control circuit 8 and circuit box 9.
Herein, suction port 1 is arranged at below ceiling embedded type air exchange fan, corresponding with the opening portion of ceiling.Framework 3 forms the side of ceiling embedded type air exchange fan, has exhaust port 2.Motor 4 is fixed on the end face of framework 3.Blade 5 is driven by motor 4.Housing 6 covers blade 5 around.Decoration panel 7 covers the lower aperture portion of framework 3 from room side and installs in the mode of freely loading and unloading.Control circuit 8 is arranged on the end face of framework 3, is used for drive control motor 4.Circuit box 9 receives control circuit 8.Herein, blower 23 is made up of motor 4, blade 5, housing 6, control circuit 8 and circuit box 9.
Fig. 3 is the details drawing in the A portion of Fig. 2, and Fig. 4 is the details drawing in the B portion of Fig. 2.As shown in Figure 3, the blower 23 of embodiments of the present invention comprises: roller pin 13, groove 14 and hub portion 15.In addition, as shown in Figure 4, blower 23 has mounting-and-dismounting device 22, and it comprises each a pair holding part 11 and press part 12 of forming.
As shown in Figure 3, roller pin 13 is cylindric, installs at a right angle relative to the axis 10a of the running shaft 10 of motor 4.Hub portion 15 is arranged at the central part of blade 5, is inserted into running shaft 10.In addition, hub portion 15 is provided with groove 14, it is used for engaging roller pin 13 at the motor side end face 15a of the inserting side end face as running shaft 10.Groove 14 comprises opening portion 18 and bottom 17.
In addition, as shown in Figure 4, press part 12, by pressing, makes holding part 11 move.Running shaft 10 keep by a pair holding part 11, if clipping operation is carried out in press part 12, then the confining force of holding part 11 is just removed, and blade 5 and running shaft 10 can load and unload.In addition, motor 4 uses without sensor direct current motor, and control circuit 8 is drive circuits of direct current motor.
In motor 4, do not have Hall element without sensor direct current motor, therefore, upon start up, fix the rotor-position of motor 4 according to DC excitation pattern.Then, export the power on signal of forced reversing without sensor direct current motor and rotate.If rotated without sensor direct current motor, then produce induced voltage at the winding of each phase (U phase, V phase, W phase).If represent that the positive and negative signal comprising each phase terminal voltage of induced voltage is transfused to as position signal, then automatically switch to the power on signal of position-based signal input (induced voltage) from the power on signal of forced reversing.Therefore, under sensorless drive, driven without sensor direct current motor.When this DC excitation pattern, running shaft 10 left rotation and right rotation, therefore, repeatedly collides, and produces impact sound between roller pin 13 and groove 14.
In addition, be not with homogeneous rotating force but repeatedly occur because the moment of torsion caused by slot effect (cogging) is uneven without sensor direct current motor, therefore, roller pin 13 becomes inconsistent with the rotary motion of groove 14.Therefore, repeatedly collide between roller pin 13 and groove 14, produce impact sound.
In contrast, as shown in Figure 3, the sidewall 16 of groove 14 is provided with the gradient expanded towards opening portion 18 from the bottom 17 of groove 14.In a part for sidewall 16, formed with the central shaft 13a of roller pin 13 for starting point, on the longitudinal direction 10b of running shaft 10, relatively form parallel straight section 19 towards opening portion 18.That is, in figure 3, the part beyond the straight section 19 of sidewall 16 has the little gradient expanded to upper left side.In addition, the distance 19a between relative straight section is identical with the diameter 13b of roller pin.
Consequently, time in roller pin 13 insertion groove 14, the throat width of groove 14 is larger than roller pin 13, therefore, easily in running shaft 10, inserts blade 5.Be arranged on roller pin 13 fix position time, namely come blade 5 rotate position time, the width of groove 14 becomes below the diameter 13b of roller pin.Therefore, between roller pin 13 and groove 14, gap disappears, and can not collide sound.
And, as shown in Figure 4, running shaft 10 is provided with the groove 20 that holding part 11 engages.The C face 21 of curved surface as chamfering of the running shaft 10 of groove 20 will be provided with.In addition, the length 19b of the straight section shown in size 21a and Fig. 3 of the longitudinal direction of the running shaft in C face is identical.Consequently, when the running shaft 10 shown in Fig. 3 is inserted in blade 5, by the impetus that holding part 11 is slided on the C face 21 shown in Fig. 4, roller pin 13 is installed in the position of straight section 19.
As described above, the blower of embodiments of the present invention can prevent the impact sound of roller pin 13 and groove 14, and blade 5 is easily mounted on running shaft 10.
Industry utilizes possibility
The present invention is widely used in blower, and this blower arranges roller pin on the running shaft of the motor in ventilation fan etc., arranges the groove closed with roller pin card, be equipped with the blade mounting arrangement as blade stop in the hub portion of blade.
Symbol description
1 suction port
2 exhaust ports
3 frameworks
4 motor
5 blades
6 housings
7 decoration panels
8 control circuits
9 circuit box
10 running shafts
10a axis
10b longitudinal direction
11 holding parts
12 press parts
13 roller pins
13a central shaft
The diameter of 13b roller pin
14 grooves
15 hub portion
15a motor side end face
16 sidewalls
Bottom 17
18 opening portions
19 straight sectioies
Distance between the straight section that 19a is relative
The length of 19b straight section
20 grooves
21C face
The size of the longitudinal direction of the running shaft in 21aC face
22 mounting-and-dismounting devices
23 blowers
Claims (2)
1. a blower, is characterized in that, comprising:
Motor;
By the blade of described motoring;
Cover the housing of the surrounding of described blade;
The control circuit of motor described in drived control;
Cylindric roller pin, the axis of the running shaft of itself and described motor is installed on the running shaft of described motor at a right angle; With
Be inserted into the hub portion of described running shaft,
Described hub portion is provided with groove, this groove has the opening portion and the bottom that are used for engaging described roller pin at the inserting side end face of described running shaft, the sidewall of described groove is provided with and goes from described bottom to described opening portion the gradient that expands, in a part for described sidewall, with the central shaft of described roller pin for starting point relatively forms parallel straight section towards described opening portion on the longitudinal direction of described running shaft, distance between relative described straight section is identical with the diameter of described roller pin, be arranged on described roller pin fix position time, gap between described roller pin and described groove disappears.
2. blower as claimed in claim 1, is characterized in that:
Keep the holding part of described running shaft and make the press part of described holding part movement form and arrange a pair respectively by pressing, and the groove of described holding part engaging is set at described running shaft, to be provided with the C face of curved surface as chamfering of the described running shaft of described groove, the size of the longitudinal direction of the described running shaft in described C face is identical with the length of described straight section.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011009651 | 2011-01-20 | ||
| JP2011-009651 | 2011-01-20 | ||
| PCT/JP2011/007073 WO2012098620A1 (en) | 2011-01-20 | 2011-12-19 | Blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103026074A CN103026074A (en) | 2013-04-03 |
| CN103026074B true CN103026074B (en) | 2015-11-25 |
Family
ID=46515273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180036372.4A Active CN103026074B (en) | 2011-01-20 | 2011-12-19 | Blower |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130129545A1 (en) |
| JP (1) | JP5534041B2 (en) |
| CN (1) | CN103026074B (en) |
| WO (1) | WO2012098620A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203306224U (en) | 2013-05-31 | 2013-11-27 | 深圳市大疆创新科技有限公司 | Propeller and aircraft provided with same |
| USD800893S1 (en) * | 2015-09-09 | 2017-10-24 | Marley Engineered Products Llc | Grille |
| CN107542704B (en) * | 2017-09-11 | 2023-08-25 | 珠海格力电器股份有限公司 | Fan subassembly and have its air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368081B1 (en) * | 1999-11-19 | 2002-04-09 | Minebea Co. Ltd. | Blower |
| CN1971065A (en) * | 2005-09-14 | 2007-05-30 | 山洋电气株式会社 | Double reverse rotation type axial flow blower |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55123694U (en) * | 1979-02-23 | 1980-09-02 | ||
| JPS57108496A (en) * | 1980-12-24 | 1982-07-06 | Toshiba Corp | Impeller assembly device |
| JPS6038199U (en) * | 1983-08-23 | 1985-03-16 | 株式会社東芝 | Blower |
| JP3804613B2 (en) * | 2003-01-20 | 2006-08-02 | 株式会社デンソー | Blower |
| JP2007278243A (en) * | 2006-04-11 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Blower |
| JP5061681B2 (en) * | 2007-03-27 | 2012-10-31 | パナソニック株式会社 | fan motor |
| JP5092853B2 (en) * | 2008-04-07 | 2012-12-05 | パナソニック株式会社 | Blower blade mounting device |
| JP5396868B2 (en) * | 2009-01-16 | 2014-01-22 | パナソニック株式会社 | Blower |
-
2011
- 2011-12-19 US US13/813,199 patent/US20130129545A1/en not_active Abandoned
- 2011-12-19 JP JP2012553480A patent/JP5534041B2/en active Active
- 2011-12-19 CN CN201180036372.4A patent/CN103026074B/en active Active
- 2011-12-19 WO PCT/JP2011/007073 patent/WO2012098620A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368081B1 (en) * | 1999-11-19 | 2002-04-09 | Minebea Co. Ltd. | Blower |
| CN1971065A (en) * | 2005-09-14 | 2007-05-30 | 山洋电气株式会社 | Double reverse rotation type axial flow blower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2012098620A1 (en) | 2014-06-09 |
| CN103026074A (en) | 2013-04-03 |
| US20130129545A1 (en) | 2013-05-23 |
| WO2012098620A1 (en) | 2012-07-26 |
| JP5534041B2 (en) | 2014-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |