CN107061352B - Pressure fan - Google Patents
Pressure fan Download PDFInfo
- Publication number
- CN107061352B CN107061352B CN201710069276.9A CN201710069276A CN107061352B CN 107061352 B CN107061352 B CN 107061352B CN 201710069276 A CN201710069276 A CN 201710069276A CN 107061352 B CN107061352 B CN 107061352B
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- Prior art keywords
- mentioned
- rotary shaft
- air blast
- support plate
- hole
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Classifications
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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
- 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
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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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—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
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of pressure fan, can further ensure that the screw threads for fastening power when Air Blast fan to be fixed on to the rotary shaft of motor and is used to for rotation torque being transferred to the spin intensity of Air Blast fan, and cost of implementation reduces.In pressure fan (100), there is the support plate (2) of the mounting hole (211) for rotary shaft (31) perforation for being formed with external thread structure portion (31b) to be embedded in Air Blast fan (1).Support plate (2) includes the basic portion (21) for being formed with mounting hole (211)；And the tongue piece portion (22) stretched out to through hole (111) side.Tongue piece portion 22 has the mating surface (22a) cooperated with the D-shaped cut surface (31a) of rotary shaft (31), and is embedded in the inner face of through hole (111).
Description
Technical field
The present invention relates to the pressure fan for having the resin Air Blast fan by motor rotation driving.
Background technique
Currently, the technology as the rotary shaft that Air Blast fan is fixed on to motor in pressure fan, has patent document 1
Technology shown in (No. 5171544 bulletins of Japanese Patent No.).
The claim 1 of the patent document 1 describe " a kind of pressure fan, which is characterized in that have: motor, have
Front end forms external screw thread and is formed with the drive shaft of D-shaped cutting part in front end side；Fan, with shaft sleeve part, and it is tight
It is fixed in above-mentioned drive shaft, above-mentioned shaft sleeve part forms the axis hole for being embedded in above-mentioned drive shaft and is formed with auxiliary section in end face；Nut,
It is screwed with the external screw thread of above-mentioned drive shaft and said fans is anchored on the drive shaft；And have aural grommet, have with
The D shape of the D-shaped cutting part of the chimeric engaging portion in auxiliary section, the above-mentioned drive shaft of insertion is formed by the end face of above-mentioned lug boss
Hole and straight line portion set on the D shape hole and between the D-shaped cutting part of the above-mentioned drive shaft of insertion and the internal screw thread of above-mentioned nut
The nut in gap pick up the ears, and the above-mentioned end face for having aural grommet to be set to above-mentioned lug boss is above-mentioned together with said fans
Nut is anchored on above-mentioned drive shaft, and above-mentioned nut picks up the ears to be formed as, the outer surface of the D-shaped cutting part of inner surface and above-mentioned drive shaft
It abuts, the corner of outer surface is with the gap of 0.1mm or so close to the inner threaded surface of above-mentioned nut." (referring to Fig. 5).
Existing technical literature
Patent document
Patent document 1: No. 5171544 bulletin of patent
Pressure fan described in Patent Document 1 is being installed on drive shaft (rotary shaft) by tightening nut (fixation member)
The locking member such as locating snap ring (referring to Fig. 2) and have and clamp lug boss between aural grommet, so that fan (Air Blast fan) is fixed on
Rotary shaft.In this case, the lug boss of resin Air Blast fan bears big compressing force.Therefore, in order to ensure by Air Blast fan
It is fixed on screw threads for fastening power when rotary shaft, needs to choose Air Blast fan the material of high mechanical strength, therefore cost is got higher.
In addition, being applied to from the rotation torque that the rotary shaft of motor inputs in outer surface side there is the nut of clearance to pick up the ears.
In this case, nut picks up the ears to be set to aural grommet with the erection of cantilever beam, therefore when bearing rotation torque, carry out curved
Song deformation, while generating bending stress.Accordingly, there exist for the rotation torque inputted from the rotary shaft of motor to be transferred to air-supply
The problem of the spin intensity deficiency of fan.
Summary of the invention
Given this situation the present invention proposes that project is to provide a kind of pressure fan, can further ensure that
Screw threads for fastening power when Air Blast fan to be fixed on to the rotary shaft of motor and the rotation for being used to for rotation torque being transferred to Air Blast fan
Turn intensity, while cost of implementation reduces.
In order to solve above-mentioned problem, pressure fan of the invention is characterized in that having: the motor with rotary shaft；By
The resin Air Blast fan of said motor rotation driving；And it is embedded in above-mentioned Air Blast fan and has and penetrated through for above-mentioned rotary shaft
Mounting hole support plate, above-mentioned rotary shaft includes the front end for being formed with external thread structure portion；And the base in the front end
The base end part of end side connection setting, the D-shaped cut surface that there is above-mentioned base end part a part to be formed flatly, above-mentioned Air Blast fan tool
There is the through hole for the perforation of above-mentioned rotary shaft, above-mentioned support plate includes the basic portion for being formed with above-mentioned mounting hole；And to above-mentioned
The tongue piece portion that through hole side is stretched out, above-mentioned tongue piece portion has the mating surface cooperated with above-mentioned D-shaped cut surface, and is embedded in above-mentioned
The inner face of through hole.
Invention effect
In accordance with the invention it is possible to provide a kind of pressure fan, it can further ensure that and Air Blast fan is fixed on motor
Screw threads for fastening power when rotary shaft and the spin intensity for rotation torque to be transferred to Air Blast fan, while the drop of cost of implementation
It is low.
Detailed description of the invention
(a) of Fig. 1 is the perspective view of the pressure fan of one embodiment of the present invention, is (b) that amplification indicates will send in (a)
Wind fan is fixed on the perspective view near the nut of the rotary shaft of motor.
(a) of Fig. 2 is the summary longitudinal section view of pressure fan shown in FIG. 1, is (b) wind that will blow in amplification expression (a)
Fan is fixed on the summary longitudinal section view of the part of the rotary shaft of motor.
Fig. 3 is the summary stereogram of rotary shaft shown in FIG. 1.
(a) of Fig. 4 is the summary longitudinal section view of Air Blast fan shown in FIG. 1 and support plate, is (b) that amplification indicates in (a)
Through hole near summary longitudinal section view.
(a) of Fig. 5 is the main view of support plate shown in Fig. 4 (b), is (b) its right side view, is (c) its bottom view,
It (d) is its perspective view.
Symbol description
1-Air Blast fan, 11-base portions, 111-through holes, 111a-hole side D-shaped cut surface, 12-blade parts, 2-
Fagging, 21-basic portion, 211-mounting holes, 211a-circular arc, 212-chamferings, 213-notches, 214-sides, 22-tongue pieces
Portion, 22a-mating surface, 3-motors, 31-rotary shafts, 311-front ends, 312-base end parts, 31a-D-shaped cut surface,
31b-external thread structure portion, 31c-cascaded surface, 31d-neck, 32-main parts, 4-nuts (fixation member), the interior spiral shell of 4a-
Line structural portion, 4b-joint surface, 100-pressure fan.
Specific embodiment
Referring to attached drawing appropriate, the embodiment of the present invention will be described in detail.
In addition, adding identical reference marks to common part, and suitably omit and repeat in each figure as shown below
Explanation.
Fig. 1 (a) is the perspective view of the pressure fan 100 of one embodiment of the present invention, and Fig. 1 (b) is that amplification indicates Fig. 1 (a)
In the rotary shaft 31 that Air Blast fan 1 is fixed on to motor 3 nut 4 near perspective view.Fig. 2 (a) is air-supply shown in FIG. 1
The summary longitudinal section view of machine 100, Fig. 2 (b) are the rotary shafts that Air Blast fan 1 is fixed on to motor 3 in amplification expression Fig. 2 (a)
The summary longitudinal section view of 31 part.
In the present embodiment, the spiral illustrated to pressure fan 100 for the outdoor unit fan assembly applied to air conditioner
The case where paddle fan, is illustrated.As shown in FIG. 1 to FIG. 2, pressure fan 100 has: the motor 3 with rotary shaft 31；By horse
Up to the resin Air Blast fan 1 of 3 rotation drivings；It is embedded in Air Blast fan 1 and there is the mounting hole 211 penetrated through for rotary shaft 31
Support plate 2；And the nut 4 as the fixation member that Air Blast fan 1 is fixed on to rotary shaft 31.The main part 32 of motor 3 is solid
Due to framework (not shown).
Fig. 3 is the summary stereogram of rotary shaft 31 shown in FIG. 1.
As shown in figure 3, rotary shaft 31 includes the front end 311 for being formed with external thread structure portion 31b；And in the front end
The base end part 312 of 32 side of main part (base end side) the connection setting in portion 311 (referring to Fig. 2 (b)).External thread structure portion 31b's is outer
Diameter D2 is configured to smaller than the outer diameter D 1 of base end part 312.
Base end part 312 includes the cascaded surface 31c being formed in the boundary of front end 311；And 311 side of front end is outer
The D-shaped cut surface 31a that a part of circumferential surface is formed flatly.Cascaded surface 31c is formed as hanging down relative to the central axis of rotary shaft 31
Directly.Front end 311 has the neck 31d for not carrying out screw chasing between external thread structure portion 31b and cascaded surface 31c.
Fig. 4 (a) is the summary longitudinal section view of Air Blast fan 1 shown in FIG. 1 and support plate 2, and Fig. 4 (b) is that amplification indicates Fig. 4
(a) the summary longitudinal section view near through hole 111 in.As shown in figure 4, Air Blast fan 1 has: being supported in the big of rotary shaft 31
Cause columned base portion 11；And the blade part 12 of the radial outside connection setting in base portion 11.
The base portion 11 of Air Blast fan 1 has the through hole 111 penetrated through for rotary shaft 31 (referring to Fig. 2 (b)).Specifically,
The formation of front end 311 and base end part 312 only in rotary shaft 31 has the part of D-shaped cut surface 31a that can penetrate through through hole
111.A part of the inner peripheral surface of the through hole 111 of Air Blast fan 1 is formed with cuts with the D-shaped of the base end part 312 of rotary shaft 31
The flat hole side D-shaped cut surface 111a of face 31a (referring to Fig. 2 (b), Fig. 3) cooperation.
The integrally formed part that Air Blast fan 1 is made of resin.It is buried in the axial front end side of the through hole 111 of Air Blast fan 1
Equipped with the support plate 2 for being supported in rotary shaft 31 (referring to Fig. 2 (b), Fig. 3).It is, being formed with support in the insertion of Air Blast fan 1
Plate 2.The mounting hole 211 penetrated through for rotary shaft 31 is formed in the center of support plate 2.Specifically, only before rotary shaft 31
End 311 can penetrate through mounting hole 211.
Fig. 5 (a) is the main view (figure from the front end side of rotary shaft 31) of support plate 2 shown in Fig. 4 (b), Fig. 5
It (b) is its right side view, Fig. 5 (c) is its bottom view, and Fig. 5 (d) is its perspective view.As shown in figure 5, support plate 2 includes to be formed
There is the basic portion 21 of mounting hole 211；And from a part of the periphery of the mounting hole 211 of the basic portion 21 to Air Blast fan 1
The tongue piece portion 22 that through hole 111 (referring to Fig. 4 (b)) side is stretched out.In inside (the center side O of mounting hole 211) shape of tongue piece portion 22
The flat mating surface 22a of D-shaped cut surface 31a (referring to Fig. 2 (b), Fig. 3) cooperation of the base end part 312 of Cheng Youyu rotary shaft 31.
Support plate 2 is the integrated metallic drip molding being fabricated to and carrying out punch process to metal plates such as steel plates.
The tongue piece portion 22 of support plate 2 by carrying out punching press blanking to the metal plate as main material and is configured to one with main material and bending machining
Body.In addition, constituting the formation of the rotary shaft 31 of only motor 3 using punching shape when forming tongue piece portion 22 has external thread structure
The mounting hole 211 that the front end 311 of portion 31b can penetrate through.
Shape in the case where the end on observation of the slave rotary shaft 31 of the basic portion 21 of support plate 2 is in polygon.It is specific and
Speech, the quadrangles such as square, rectangle of basic portion 21 (rectangle).Here, the concept of polygon is in addition to proper more
It also include for example that corner chamfering, rounding is obtained generally polygonal outside the shape of side.
A part of face in multiple corners of the above-mentioned polygon of basic portion 21 is equipped with chamfering 212.Here, in quadrangle
Four corners in a setting chamfering 212, but not limited to this, can also be fallen in the setting of two or three in four corners
Angle 212.
In addition, notch 213 is arranged at least one multiple in of the above-mentioned polygon of basic portion 21.In Fig. 5
Symbol 214 indicate to constitute the side of the basic portion 21 on above-mentioned polygonal side.Here, three in four sides of quadrangle
Notch 213 is arranged in side, but not limited to this, it can also be in one, two or four setting notch 213 in four sides.
When from the end on observation of rotary shaft 31, the mounting hole 211 of the basic portion 21 of support plate 2 has than rotary shaft 31
The outer diameter D 2 of the external thread structure portion 31b of front end 311 is big and the outer diameter D smaller than the outer diameter D of the base end part of rotary shaft 31 312 1
Circular arc 211a (referring to Fig. 2 (b)).That is, the circular arc 211a of mounting hole 211 is formed as the relationship for meeting D2 < D < D1.
In addition, when from the end on observation of rotary shaft 31, by the center O of circular arc 211a and perpendicular to mating surface 22a's
Point that straight line intersects with mating surface 22a and front end 311 with the distance between the point of circular arc 211a intersection L than rotary shaft 31
The outer diameter D 2 of external thread structure portion 31b is big (referring to Fig. 2 (b)).Moreover, above-mentioned distance L is configured to smaller than distance L1, the distance L1
For by the center of rotary shaft 31 and perpendicular to the straight line of D-shaped cut surface 31a with the D-shaped cut surface 31a point intersected and relative to D
The distance between point of outer peripheral surface intersection of the base end part 312 of shape cut surface 31a opposite side (referring to Fig. 2 (b)).That is, matching
Conjunction face 22a and circular arc 211a is formed as the relationship for meeting D2 < L < L1.
Support plate 2 is with the hole in the circumferential direction of the circumferential position of the tongue piece portion 22 in the circumferential direction of mounting hole 211 and through hole 111
The consistent mode of circumferential position of side D-shaped cut surface 111a is embedded in Air Blast fan 1 (referring to Fig. 2 (b)).
As shown in Fig. 2 (b), the hole side of the through hole 111 of the mating surface 22a and Air Blast fan 1 of the tongue piece portion 22 of support plate 2
D-shaped cut surface 111a is configured in identical plane.Here, two faces are configured at the concept in identical plane in addition to two faces
Except in the case of being in identical plane on stricti jurise, also include the case where slightly there is deviation.For example, tongue piece portion 22 is matched
The surface of conjunction face 22a can also be configured the thin resin layer covering of a part of hole side D-shaped cut surface 111a.
Nut 4 includes the internal thread structure being screwed with the external thread structure portion 31b of the front end 311 of rotary shaft 31
Portion 4a；And abut and press the joint surface 4b of the basic portion 21 of support plate 2.Moreover, the basic portion 21 of support plate 2 is clamped in
Between the cascaded surface 31c of the base end part 312 of rotary shaft 31 and the joint surface 4b of nut 4.
Next, being illustrated to the method for the rotary shaft 31 that Air Blast fan 1 is installed on to motor 3.
Firstly, making the rotary shaft of motor 3 in such a way that rotary shaft 31 is from the through hole 111 of front end side perforation Air Blast fan 1
31 support Air Blast fans 1.At this point, cutting the circumferential position of the D-shaped cut surface 31a of rotary shaft 31 and the hole side D-shaped of Air Blast fan 1
The circumferential position of the tongue piece portion 22 of face 111a and support plate 2 is consistent.In addition, by Air Blast fan 1 to 32 side of main part of motor 3
It is pressed into, is abutted until being embedded in the support plate 2 of Air Blast fan 1 with the cascaded surface 31c of rotary shaft 31.
Then, the external thread structure portion 31b in the front end of rotary shaft 31 311 fastens nut 4.Pass through nut 4
Precession external thread structure portion 31b, thus between the cascaded surface 31c of the base end part 312 of rotary shaft 31 and the joint surface 4b of nut 4
Pass through the basic portion 21 of both sides' clamp standoff plate 2.Air Blast fan 1 is fixed on the rotary shaft 31 of motor 3 as a result,.
In the pressure fan 100 constituted in this way, when making motor 3 work, to be fixed on the Air Blast fan 1 of rotary shaft 31 into
Row rotation driving carries out the air-supply operating of pressure fan 100.At this point, the rotation torque for rotating the rotary shaft 31 of motor 3 via with
The mating surface 22a of the tongue piece portion 22 of the D-shaped cut surface 31a cooperation of the rotary shaft 31 and hole side D-shaped cut surface 111a of Air Blast fan 1
And it is transferred to the base portion 11 of Air Blast fan 1.The Air Blast fan 1 with blade part 12 is rotated and is blown as a result,.
As described above, there is the rotation for being formed with external thread structure portion 31b in the pressure fan 100 of present embodiment
The support plate 2 for the mounting hole 211 that axis 31 penetrates through is embedded in Air Blast fan 1.Support plate 2, which includes, is formed with the basic of mounting hole 211
Portion 21；And the tongue piece portion 22 stretched out to 111 side of through hole.Tongue piece portion 22 has to be cooperated with the D-shaped cut surface 31a of rotary shaft 31
Mating surface 22a, and be embedded in the inner face of through hole 111.
According to such present embodiment, by using the external thread structure portion 31b of rotary shaft 31 by 21 spiral shell of basic portion
Line is anchored on rotary shaft 31, Air Blast fan 1 can be firmly fixed at rotary shaft 31.It is, will not be as at present in this wise
Big compressing force is generated in the lug boss of resin Air Blast fan, therefore can substantially ensure screw threads for fastening power.
Moreover, can be used more soft without the material (such as ASG resin) for choosing high mechanical strength to Air Blast fan 1
And the material (such as PPG resin) of low price.
In addition, can by the inner face in through hole 111 inbuilt support plate 2 tongue piece portion 22 mating surface 22a come
Bear the rotation torque exported from the rotary shaft 31 of motor 3.Here, the exterior side of tongue piece portion 22 (the center O's of mounting hole 211
Opposite side) it is firmly supported by the inner wall of through hole 111, therefore the generation of bending deformation, bending stress can be effectively inhibited.
Therefore, the rotation for the rotation torque inputted from the rotary shaft 31 of motor 3 to be transferred to Air Blast fan 1 can be fully ensured
Intensity.
That is, according to the present embodiment, being capable of providing a kind of pressure fan 100, can further ensure that and consolidate Air Blast fan 1
Screw threads for fastening power when the rotary shaft 31 of motor 3 and the spin intensity for rotation torque to be transferred to Air Blast fan 1, together
When cost of implementation reduce.
In addition, present embodiment has the nut 4 that Air Blast fan 1 is fixed on to rotary shaft 31, in the perforation of Air Blast fan 1
The front end side in hole 111 the basic portion 21 of inbuilt support plate 2 be clamped in the cascaded surface 31c of rotary shaft 31 and the engagement of nut 4
Between the 4b of face.It according to this structure, can will be in the cascaded surface 31c and spiral shell of rotary shaft 31 and being fastened to nut 4
The basic portion 21 of clamp standoff plate 2 between the joint surface 4b of mother 4, so that Air Blast fan 1 is firmly fixed at rotary shaft 31.
In addition, in the present embodiment, support plate 2 is integrated metallic drip molding, specifically, for by metal
Plate carries out punch process and the integrally formed part of punching press that is fabricated in one piece, mounting hole of the tongue piece portion 22 from basic portion 21
One stretching of 211 periphery.In this case, tongue piece can be formed by carrying out blanking and L word bending machining to metal plate
Portion 22, and constitute the formation of only rotary shaft 31 using punching shape when forming tongue piece portion 22 and have external thread structure portion 31b
The mounting hole 211 that can penetrate through of front end 311.Therefore, because can efficiency make support plate 2 well, so can mention
High productivity further realizes cost reduction.
In addition, in the present embodiment, being formed with and revolving in a part of the inner peripheral surface of the through hole 111 of Air Blast fan 1
Shaft 31 D-shaped cut surface 31a cooperation flat hole side D-shaped cut surface 111a, the flat mating surface 22a of tongue piece portion 22 with
Hole side D-shaped cut surface 111a is configured in identical plane.According to this structure, the mating surface of tongue piece portion 22 can be passed through
The hole side D-shaped cut surface 111a both sides of 22a and Air Blast fan 1 bear rotation torque.Therefore, it can further increase for will be from
The rotation torque that the rotary shaft 31 of motor 3 exports is transferred to the spin intensity of Air Blast fan 1.
In addition, in the present embodiment, the basic portion 21 of support plate 2 from the end on observation of rotary shaft 31
Shape be in polygon.In this configuration, it can reliably bear from support plate 2 in the plane of support plate 2 to Air Blast fan 1
The rotary force (circumferential power) of application.Moreover, in the present embodiment, specifically, the basic portion 21 of support plate 2 is in quadrangle
(rectangle), therefore such as mechanical arm easily can be transferred support plate 2 when, is adsorbed and the region of support plate 2 is kept to ensure propping up
The adjacent corner of the quadrangle of fagging 2.
In addition, in the present embodiment, one in above-mentioned polygonal multiple corners of the basic portion 21 of support plate 2
It is arranged with chamfering 212.According to this structure, it easily identifies the table back of support plate 2, be easy to make the tongue piece portion 22 of support plate 2
The direction of mating surface 22a is consistent with scheduled direction.It therefore, can be right when the insertion of support plate 2 is formed in Air Blast fan 1
Should be similar to pick up the support plate 2 as part for example, by mechanical arm and be installed on the fixture provisioned in shaping dies from
It is dynamic to take out operation, therefore can further be conducive to productive raising.
In addition, in the present embodiment, at least one in above-mentioned polygonal multiple sides of the basic portion 21 of support plate 2
It is a to be equipped with notch 213.According to this structure, concaveconvex shape can be formed in the side of basic portion 21 214.Therefore, to sending
Wind fan 1 has the following effects that when being embedded in forming support plate 2, that is, can increase what resin was contacted with the side 214 of support plate 2
The area that direction, resin are contacted with the side 214 of support plate 2.Even if as a result, just in case side 214 relative to basic portion 21
There is no the planar portions of concaveconvex shape, there are resins around incomplete position, also because can be by entering in notch 213
Resin keep basic portion 21, so the loosening of support plate 2 can be further reliably suppressed.
In addition, in the present embodiment, the outer diameter D 2 of external thread structure portion 31b is smaller than the outer diameter D 1 of base end part 312, installation
The circular arc 211a in hole 211 is formed as the relationship for meeting D2 < D (outer diameter of circular arc 211a) < D1.According to this structure, can
The shape of the mounting hole 211 of size needed for ensuring to be used to form the tongue piece portion 22 with mating surface 22a, and be reliably formed
The structure of the basic portion 21 of clamp standoff plate 2 between the cascaded surface 31c of rotary shaft 31 and the joint surface 4b of nut 4.
In addition, in the present embodiment, mating surface 22a and circular arc 211a be formed as meeting D2 (external thread structure portion 31b's
Outer diameter) < distance L (referring to Fig. 5) < distance L1 (referring to Fig. 2 (b)) relationship.According to this structure, can by with main material
The stamping of one has the mating surface that can reliably bear the rotation torque inputted from the rotary shaft 31 of motor 3 to be formed
The tongue piece portion 22 of 22a, and be reliably formed between the cascaded surface 31c of rotary shaft 31 and the joint surface 4b of nut 4 and clamp branch
The structure of the basic portion 21 of fagging 2.
Although based on embodiment, the present invention is described above, the present invention is not limited in above-mentioned embodiment party
Formula further includes various modifications example.For example, above-mentioned embodiment is for easy understanding to illustrate the present invention and carry out in detail
The embodiment of explanation is not limited to all structures that must have illustrated.In addition, for the knot of above-mentioned embodiment
A part of structure can add, deletes, convert other structures.
For example, being in the above-described embodiment the outdoor unit fan assembly applied to air conditioner to pressure fan 100
The case where propeller fan, is illustrated, but not limited to this.The present invention for example can also apply to fan dress used for indoor machine
Set (turbine fan, propeller fan), industrial use fan device, air interchanger etc..
In addition, in the above-described embodiment, the rotary shaft 31 of motor 3 is configured to level, but not limited to this, it can also match
It is set to towards above or below vertical direction.
In addition, directly being abutted to the joint surface 4b of nut 4 in the above-described embodiment and pressing the basic portion of support plate 2
21 the case where, is illustrated, but not limited to this, can also between nut 4 joint surface 4b and support plate 2 basic portion 21 it
Between there are the components such as gasket.
Claims (9)
1. a kind of pressure fan, which is characterized in that have:
Motor with rotary shaft；
By the resin Air Blast fan of said motor rotation driving；And
It is embedded in above-mentioned Air Blast fan and there is the support plate of the mounting hole for the perforation of above-mentioned rotary shaft,
Above-mentioned rotary shaft includes the front end for being formed with external thread structure portion；And the base end side in the front end connects setting
Base end part,
The D-shaped cut surface that there is above-mentioned base end part a part to be formed flatly,
Above-mentioned Air Blast fan has the through hole for the perforation of above-mentioned rotary shaft,
Above-mentioned support plate includes the basic portion for being formed with above-mentioned mounting hole；And the tongue piece portion stretched out to above-mentioned through hole side,
Above-mentioned tongue piece portion has the mating surface cooperated with above-mentioned D-shaped cut surface, and is embedded in the inner face of above-mentioned through hole.
2. pressure fan according to claim 1, which is characterized in that
With the fixation member that above-mentioned Air Blast fan is fixed on to above-mentioned rotary shaft,
Fixation portions part includes the internal thread structure portion being screwed with above-mentioned external thread structure portion；And to above-mentioned support
The joint surface that the above-mentioned basic portion of plate is pressed,
Above-mentioned base end part has the cascaded surface on the boundary for being formed in above-mentioned front end,
Above-mentioned D-shaped cut surface is formed in a part of the outer peripheral surface of the above-mentioned front end side of above-mentioned base end part,
Above-mentioned support plate is embedded in the axial front end side of the above-mentioned through hole of above-mentioned Air Blast fan,
The above-mentioned basic portion of above-mentioned support plate is clamped in the above-mentioned cascaded surface of above-mentioned base end part and the above-mentioned of fixation portions part connects
Between conjunction face.
3. pressure fan according to claim 1, which is characterized in that
Above-mentioned support plate is integrated metallic drip molding, and above-mentioned tongue piece portion is from the periphery of the above-mentioned mounting hole of above-mentioned basic portion
A part is stretched out.
4. pressure fan according to claim 1, which is characterized in that
It is formed in a part of the inner peripheral surface of the above-mentioned through hole of above-mentioned Air Blast fan flat with the cooperation of above-mentioned D-shaped cut surface
Hole side D-shaped cut surface,
The flat above-mentioned mating surface of above-mentioned tongue piece portion and above-mentioned hole side D-shaped cut surface are configured in identical plane.
5. pressure fan according to claim 1, which is characterized in that
Shape when from the end on observation of above-mentioned rotary shaft of the above-mentioned basic portion of above-mentioned support plate is in polygon.
6. pressure fan according to claim 5, which is characterized in that
A part in multiple corners of the above-mentioned polygon of above-mentioned basic portion is equipped with chamfering.
7. pressure fan according to claim 5, which is characterized in that
Notch is equipped at least one multiple in of the above-mentioned polygon of above-mentioned basic portion.
8. pressure fan according to any one of claims 1 to 7, which is characterized in that
The outer diameter in above-mentioned external thread structure portion is smaller than the outer diameter of above-mentioned base end part,
When from the end on observation of above-mentioned rotary shaft, the above-mentioned mounting hole of the above-mentioned basic portion of above-mentioned support plate has outer diameter than upper
State external thread structure portion outer diameter is big and the circular arc smaller than the outer diameter of above-mentioned base end part.
9. pressure fan according to claim 8, which is characterized in that
When from the end on observation of above-mentioned rotary shaft, by the center of above-mentioned circular arc and perpendicular to the straight line of above-mentioned mating surface with it is upper
It is bigger than the outer diameter in above-mentioned external thread structure portion to state the distance between the point that mating surface intersects and the point intersected with above-mentioned circular arc, and compares
The point that intersects by the center of above-mentioned rotary shaft and perpendicular to the straight line of above-mentioned D-shaped cut surface with above-mentioned D-shaped cut surface and with phase
The distance between the point of outer peripheral surface intersection of the above-mentioned base end part of the side opposite for above-mentioned D-shaped cut surface is small.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-023372 | 2016-02-10 | ||
| JP2016023372A JP6700827B2 (en) | 2016-02-10 | 2016-02-10 | Blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061352A CN107061352A (en) | 2017-08-18 |
| CN107061352B true CN107061352B (en) | 2019-04-19 |
Family
ID=59599234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710069276.9A Active CN107061352B (en) | 2016-02-10 | 2017-02-08 | Pressure fan |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6700827B2 (en) |
| CN (1) | CN107061352B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021012341A1 (en) | 2019-07-23 | 2021-01-28 | 广东美的制冷设备有限公司 | Axial flow fan, air conditioning outdoor unit and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210399A (en) * | 1982-06-02 | 1983-12-07 | Nissan Motor Co Ltd | Securing device of ceramic shaft and impeller |
| US4836708A (en) * | 1988-07-05 | 1989-06-06 | Motorola, Inc. | Self-locking, anti-rotational retaining washer for a "D" shaped shaft |
| US4941805A (en) * | 1989-01-29 | 1990-07-17 | David Matthews | Device for centering a drive shart on a hub |
| JPH05340391A (en) * | 1992-06-15 | 1993-12-21 | Daikin Ind Ltd | Blowing device for air conditioner |
| CN2750080Y (en) * | 2003-01-29 | 2006-01-04 | 松下电器产业株式会社 | Air supply arrangement |
| CN202209307U (en) * | 2010-09-10 | 2012-05-02 | 东普雷股份有限公司 | Stamping hub for fan |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615496U (en) * | 1979-07-16 | 1981-02-10 | ||
| JP3388470B2 (en) * | 1997-10-29 | 2003-03-24 | ミネベア株式会社 | Axial blower |
| JP5171544B2 (en) * | 2008-10-27 | 2013-03-27 | 三菱電機株式会社 | Blower |
-
2016
- 2016-02-10 JP JP2016023372A patent/JP6700827B2/en active Active
-
2017
- 2017-02-08 CN CN201710069276.9A patent/CN107061352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210399A (en) * | 1982-06-02 | 1983-12-07 | Nissan Motor Co Ltd | Securing device of ceramic shaft and impeller |
| US4836708A (en) * | 1988-07-05 | 1989-06-06 | Motorola, Inc. | Self-locking, anti-rotational retaining washer for a "D" shaped shaft |
| US4941805A (en) * | 1989-01-29 | 1990-07-17 | David Matthews | Device for centering a drive shart on a hub |
| JPH05340391A (en) * | 1992-06-15 | 1993-12-21 | Daikin Ind Ltd | Blowing device for air conditioner |
| CN2750080Y (en) * | 2003-01-29 | 2006-01-04 | 松下电器产业株式会社 | Air supply arrangement |
| CN202209307U (en) * | 2010-09-10 | 2012-05-02 | 东普雷股份有限公司 | Stamping hub for fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061352A (en) | 2017-08-18 |
| JP6700827B2 (en) | 2020-05-27 |
| JP2017141729A (en) | 2017-08-17 |
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