CN208835847U - A kind of electric motor mounting structure and compressor - Google Patents
A kind of electric motor mounting structure and compressor Download PDFInfo
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- CN208835847U CN208835847U CN201821346698.2U CN201821346698U CN208835847U CN 208835847 U CN208835847 U CN 208835847U CN 201821346698 U CN201821346698 U CN 201821346698U CN 208835847 U CN208835847 U CN 208835847U
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- 238000009434 installation Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003381 stabilizer Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001014327 Anodontia Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 230000005212 anodontia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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Abstract
It includes: bracket base that the utility model, which provides a kind of electric motor mounting structure and compressor, the electric motor mounting structure, and erecting bed is provided on bracket base, the first mounting hole is provided on erecting bed；Motor stator, being provided on motor stator can the second mounting hole corresponding with the first mounting hole；Threaded connector, including screw rod, screw rod can be simultaneously in the first mounting holes and the second mounting hole；Positioning pin, it is inserted into the second mounting hole, and positioning pin has the interior mesopores inside positioning pin along its length, interior mesopores can allow screw rod to pass through, and on the mounting surface opposite with erecting bed of positioning pin also have can be embedded in the operative end surface of erecting bed by external force with the bulge-structure, the bulge-structure that are protruded towards the direction of erecting bed and radial limit is formed to the motor stator.Motor stator is enhanced in the fixation of radial direction by the utility model, is improved reliability and stability, is reduced the offline rate in compressor production process.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of electric motor mounting structure and compressor.
Background technique
As the market competition of refrigerator reciprocating compressor is more and more fierce, in order to maintain the market part of itself product
Volume, each freezer compressor producer have to carry out adaptation market to the different marketing strategys oneself kept all the time
The adjustment of variation.The strategy that each freezer compressor producer in existing market generallys use is to keep suitable compressor
Under the premise of performance, being produced into for compressor is reduced by way of constantly reducing each components raw material usage of compressor
This, therefore can achieve the purpose that profit by using the marketing mode that improves sales volume is knocked down price.
For refrigerator reciprocating compressor, the dosage of various raw material used in each components of compressor is more
The height of compressor cost is meant that less.In traditional compressor for refrigerator, the installation fixation of motor stator generallys use logical
Four screw holes on four fastening screw cooperation motor stators are crossed, motor stator is fixed on tool, and there are four stabilizer blades with threaded hole
Compressor base frame on mounting means.Motor stator axial direction is determined by stabilizer blade on compressor base frame and screw cap
Position can be realized reliablely and stablely fixing for stator shaft orientation with fixation, the two.The radial direction of motor stator then relies on motor
Frictional force between stator faces and the stabilizer blade end face of compressor base frame is constrained.This stator using the fastening of four screws
Fixed form is installed, is needed in four angles of motor stator setting additional space for screw hole to be arranged, while being also required to
Corresponding mounting leg is set on compressor base frame.This electric machine structure form for needing to set four screw holes is to a certain degree
On cause the waste of motor material, for reduce motor cost play very big restrictive function.Meanwhile in compressor base frame
On be also required to setting respective numbers stabilizer blade, will also result in the waste of the material of compressor base frame and the increase of cost.
In view of the above problems, part freezer compressor producer starts the screw position using three even two at present
It sets and carries out compressor base frame design, motor stator design.But with the reduction of screw position quantity, motor stator relies on end face
The reliability and stability that frictional force carries out radially fixed mode sharply decline.It installs and fixes in particular by two screw positions
When motor stator, although largely reducing the weight and cost of compressor base frame and stator core, its stator
Radially fixed power also has sharp fall compared with four support legs, while the offline rate of product of its production line is high, even if normally
Offline product stability and reliability is also faced with huge challenge.The reciprocating compression of refrigerator provided by the utility model
The stator installation fixed form of machine can be used to solve above-mentioned technical problem.
Since refrigerator in the prior art generallys use with motor stator in piston compressor the installation of four fastening screws
The material utilization amount of compressor base frame caused by fixed form and stator core is excessive, and cost is difficult to decrease；Even using three
The fixed reliability and stability of motor stator radial direction caused by the installation fixed form of two fastening screws are compared with low technical
Problem, therefore the utility model researching and designing goes out a kind of electric motor mounting structure and compressor.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome the installation of motor stator in the prior art to fix
Mode cannot solve compressor base frame simultaneously and the material utilization amount of stator core is excessive, and cost is difficult to decrease and motor is fixed
The fixed lower defect of reliability and stability of sub- radial direction, to provide a kind of electric motor mounting structure and compressor.
The utility model provides a kind of electric motor mounting structure comprising:
Bracket base is provided with erecting bed on the bracket base, the first mounting hole is provided on the erecting bed；
Motor stator, being provided on the motor stator can the second mounting hole corresponding with first mounting hole；
Threaded connector, including screw rod, the screw rod can be simultaneously through first mounting holes and second installation
Kong Zhong；
Positioning pin is inserted into second mounting hole, and the positioning pin has along its length through described
Interior mesopores inside positioning pin, the interior mesopores can allow the screw rod to pass through, and the positioning pin with the peace
Also having on the opposite mounting surface of dress platform can with the bulge-structure, the bulge-structure that protrude towards the direction of the erecting bed
It is embedded in by external force in the operative end surface of the erecting bed and radial limit is formed to the motor stator.
Preferably,
The bulge-structure is the dentalation stretched out from the mounting surface towards the direction of the erecting bed, acicular texture
At least one of with fenestral fabric.
Preferably,
The bulge-structure is multiple, and in uniformly arrangement on the mounting surface.
Preferably,
The hardness of the bulge-structure is higher than the hardness of the erecting bed；Alternatively, the bulge-structure and the positioning pin
It is an integral structure, the erecting bed is an integral structure with the bracket base, and the material hardness of the positioning pin compares institute
The material hardness for stating bracket base is high.
Preferably,
The positioning pin is stepped cylindrical body or step-like prism with central axis, including along the central axis
The first segment and second segment of the stepped distribution in line direction, the cross-sectional area of the first segment are less than the cross section of the second segment
Product, to form step surface in the first segment and the second segment connecting position, and the first segment is inserted into described second
In mounting hole, the bulge-structure is formed in the second segment and on the end face opposite with the first segment, and the motor is fixed
Son has the first end face opposite with the bracket base, and the step surface can be connected in the first end face.
Preferably,
When the positioning pin is stepped cylindrical body, the first segment and the second segment are cylindrical body, and described the
One section of diameter is less than the diameter of the second segment, and the diameter of the first segment is greater than or equal to the straight of second mounting hole
Diameter, so that be formed as between the first segment and second mounting hole interference fit or transition fit, the second segment it is straight
Diameter is greater than the diameter of second mounting hole, is abutted with being formed at the step surface.
Preferably,
The first segment of the positioning pin is less than or equal to the motor stator along the length of the central axial direction
Second mounting hole along the central axial direction depth；The free end of the first segment of the positioning pin and/or
It is additionally provided with chamfering or draft structure.
Preferably,
The threaded connector further includes nut and nut, and the nut is structure as a whole with the screw rod, the motor
Stator includes the second end face opposite with the bracket base:
The nut can be connected in the second end face of the motor stator, the nut and the screw flight
Connection and the nut can be connected to the bracket base on the one side of the erecting bed；Alternatively, the nut
Be connected to the bracket base on the one side of the erecting bed, the nut is connect with the screw flight and institute
Stating nut can be connected in the second end face of the motor stator.
Preferably,
When the motor stator includes simultaneously first end face and second end face: second mounting hole is stepped hole, packet
Include the first hole section close to the first end face and the second hole section close to the second end face, and the diameter of first hole section
Greater than the diameter of second hole section.
The utility model also provides a kind of compressor comprising preceding described in any item electric motor mounting structures.
Preferably, the compressor is refrigeration compressor.
A kind of electric motor mounting structure and compressor provided by the utility model have the following beneficial effects:
1. the utility model by the structure of setting positioning pin, is arranged in the second mounting hole of stator and by spiral shell
Bar is arranged in the interior mesopores of positioning pin, and the bottom end of positioning pin be arranged bulge-structure, enable bulge-structure embedding
Enter in the operative end surface of erecting bed, can be assemblied in by the cooperation between the bulge-structure and screw rod and stator to stator
Biggish radial position-limiting action is played to the radial direction of stator when on the erecting bed of bracket base, passes through bulge-structure and installation
Embedded mode between the operative end surface of platform generates biggish radial force, so that being effectively prevented stator can also exist after mounting
In radial direction shaking or mobile situation, motor stator is effectively enhanced in the fixation of radial direction, improves reliability
And stability, the offline rate in compressor production process is reduced, the reliability of product is enhanced；And this kind of motor of the utility model
Mounting structure enables to the installation hole number of motor stator to be reduced to three by four since radially fixed effect is enhanced
It is a or even two, to reduce the material utilization amount of compressor base frame and motor stator, do not decline in the performance for guaranteeing compressor
Under the premise of, the integral material cost of compressor can greatly be reduced, the piston compressor competitiveness of product in market is enhanced；
2. the utility model by the column structure for setting positioning pin to have step surface, can also abut step surface
On the lower end surface of stator, to further carry out limit and positioning action to the axial direction of stator；And also pass through by
It is designed as being interference fitted between the first segment of stepped cylinder and the second mounting hole of stator, it can be further together with bulge-structure
Position-limiting action effectively has been carried out to the movement of stator radial direction, radial restraining ability has been improved, further improves electricity
The stability and reliability of machine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of four screw hole of compressor installation fixed form in the prior art；
Fig. 2 is the structural schematic diagram of motor stator installation fixed form provided by the utility model；
Fig. 3 is the pre-mated structural schematic diagram of the motor stator and positioning pin in the direction A in Fig. 2；
Fig. 4 a is the schematic perspective view of the positioning pin in Fig. 2 watched from top to bottom；
Fig. 4 b is the schematic perspective view of the positioning pin in Fig. 2 watched from bottom to up.
Appended drawing reference indicates in figure are as follows:
1, bracket base；10, the first mounting hole；11, erecting bed；111, operative end surface；2, motor stator；20, the second peace
Fill hole；201, the first hole section；202, the second hole section；21, first end face；22, second end face；3, threaded connector；31, screw rod；
32, nut；33, nut；4, positioning pin；40, bulge-structure；41, first segment；42, second segment；43, step surface；44, in inside
Hole；45, chamfering or draft structure.
Specific embodiment
As shown in Fig. 2-4b, the utility model provides a kind of electric motor mounting structure comprising:
Bracket base 1 is provided with erecting bed 11 on the bracket base 1, is provided with the first installation on the erecting bed 11
Hole 10；
Motor stator 2, being provided on the motor stator 2 can second mounting hole corresponding with first mounting hole 10
20；
Threaded connector 3, including screw rod 31, the screw rod 31 can be simultaneously through first mounting holes 10 and described the
In two mounting holes 20；
Positioning pin 4 is inserted into second mounting hole 20, and the positioning pin 4 have run through along its length
Interior mesopores 44 inside the positioning pin, the interior mesopores 44 can allow the screw rod 31 to pass through the (interior mesopores
Diameter be not less than the diameter of the screw rod), and also have on the mounting surface opposite with the erecting bed 11 of the positioning pin 4
Institute can be embedded in by external force with the bulge-structure 40, the bulge-structure 40 that protrude towards the direction of the erecting bed 11
It states in the operative end surface 111 of erecting bed 11 and radial limit is formed to the motor stator 2.
The utility model is arranged in the second mounting hole of stator and by the structure of setting positioning pin by screw rod
Be arranged in the interior mesopores of positioning pin, and the bottom end of positioning pin be arranged bulge-structure, bulge-structure is embedded in
In the operative end surface of erecting bed, branch can be assemblied in stator by the cooperation between the bulge-structure and screw rod and stator
Biggish radial position-limiting action is played to the radial direction of stator when on the erecting bed of frame pedestal, passes through bulge-structure and erecting bed
Operative end surface between embedded mode generate biggish radial force, bulge-structure is installed in motor stator and compressor base frame matches
It is bitten when conjunction in compressor base frame material, the radial support power much larger than plane contact frictional force is obtained, to be effectively prevented
Stator can also there is a situation where to effectively enhance motor stator in radial direction in radial direction shaking or movement after mounting
Fixation, improve reliability and stability, reduce the offline rate in compressor production process, enhance the reliability of product；And
This kind of electric motor mounting structure of the utility model enables to the installation of motor stator since radially fixed effect is enhanced
Hole number is reduced to three even two by four, to reduce the material utilization amount of compressor base frame and motor stator, is protecting
Under the premise of the performance of card compressor does not decline, the integral material cost of compressor, enhancing piston compression can greatly be reduced
The machine competitiveness of product in market.
Since stator core is formed by the silicon steel plate stacking of multi-disc same thickness, when using as described in the prior art four
When the fixed motor stator core of a screw, four light through-hole near zones in pressure and stator core suffered by the axial direction its
His position pressure suffered by the axial direction has apparent difference, therefore causes the axial direction of 2 end face different location of motor stator folded
It presses coefficient uneven, and then stator is caused to generate twist distortion, influence the cylindricity and compressor installation matter in stator center hole
Amount.And the utility model reduces nut and acts on the extruding force of stator, and replaced by the radial force part that positioning pin generates,
Under the premise of guaranteeing compressor reliability and stability, it can not only achieve the purpose that reduce compressor complete machine cost, additionally it is possible to
Guarantee that motor stator does not generate torsional deformation, rotor with higher assembles fit quality.
Preferably,
The bulge-structure 40 is the dentalation, needle-shaped stretched out from the mounting surface towards the direction of the erecting bed 11
At least one of structure and fenestral fabric.This is the preferred constructive form of the bulge-structure of the utility model, this is practical new
Type diagram in be dentalation, be chosen to dentation, it is needle-shaped or it is latticed can block set or be embedded in operative end surface, generation
Radial force between operative end surface is mentioned with preventing motor stator that movement is occurring in radial direction after the assembly is completed or is shaking
High stability.
Preferably,
The bulge-structure 40 is multiple, and in uniformly arrangement on the mounting surface.It can be produced on mounting surface in this way
The radial support power of raw radial direction all directions improves radial fastening effect.
Preferably,
The hardness of the bulge-structure 40 is higher than the hardness of the erecting bed 11；Alternatively, the bulge-structure 40 with it is described
Positioning pin 4 is an integral structure, and the erecting bed 11 is an integral structure with the bracket base 1, and the material of the positioning pin 4
Expect that hardness is higher than the material hardness of the bracket base 1.
Preferably,
The positioning pin 4 is stepped cylindrical body or step-like prism with central axis, i.e. cross section outer profile
For round or polygon, including the first segment 41 and second segment 42 along the stepped distribution of the central axial direction, described the
One section 41 of cross-sectional area is less than the cross-sectional area of the second segment 42, to connect in the first segment 41 and the second segment 42
Position forms step surface 43, and the first segment 41 is inserted into second mounting hole 20, the formation of bulge-structure 40
In on the second segment 42 and the end face opposite with the first segment 41, and the motor stator 2 has and the bracket base
1 opposite first end face 21, and the step surface 43 can be connected in the first end face 21.
This is the further preferred structure type of the positioning pin of the utility model, has and is inserted into second peace
First segment in dress hole and the second segment of cooperation can be abutted against with the end face of the erecting bed, and on the second segment with it is described
It is provided with the bulge-structure protruded towards the end face on the opposite surface in the end face of erecting bed, institute can be embedded in by external force
It states in end face and radial limit is formed to the motor stator；Column knot also by setting positioning pin to there is step surface
Step surface can be connected on the lower end surface of stator by structure, so that further the axial direction of stator is limited and be determined
Position effect.
Preferably,
When the positioning pin 4 is stepped cylindrical body, the first segment 41 and the second segment 42 are cylindrical body, and institute
The diameter for stating first segment 41 is less than the diameter of the second segment 42, and the diameter of the first segment 41 is greater than or equal to described second
The diameter of mounting hole 20, so that be formed as between the first segment 41 and second mounting hole 20 interference fit or transition match
It closes, the diameter of the second segment 42 is greater than the diameter of second mounting hole 20, is abutted with being formed at the step surface 43.
This is the further preferred structure type of the positioning pin of the utility model, i.e. stepped cylindrical body, and first
Interference fit or transition fit are formed between section and the second mounting hole, it can be together with bulge-structure effectively further to stator
The movement of radial direction has carried out position-limiting action, improves radial restraining ability, further improve motor stability and
Reliability.
Preferably,
The first segment 41 of the positioning pin 4 is fixed less than or equal to the motor along the length of the central axial direction
Depth of second mounting hole 20 of son 2 along the central axial direction；And/or the first segment 41 of the positioning pin 4
Free end be additionally provided with chamfering or draft structure 45.
First segment 41 is less than or equal to second peace of the motor stator 2 along the length of the central axial direction
Hole 20 is filled along the depth of the central axial direction, the upper end of first segment is enabled to not stretch out the second mounting hole of stator,
So that nut the upper surface of stator can be closely fitted to when tightening to stator upper surface rather than the of positioning pin
One section, to be further formed the fastening limit and mating reaction of axial direction to stator, and prevent first segment from stretching out rear nut
The case where being pressed in first segment upper end and stator is shaken in the axial direction improves the limit to stator shaft orientation direction
Fastening effect；By the way that chamfering or draft structure is arranged in the free end of first segment guiding can be played to the assembling process of positioning pin
Effect improves assembly efficiency.
Preferably,
The threaded connector 3 further includes nut 32 and nut 33, and the nut 32 is structure as a whole with the screw rod, institute
Stating motor stator 2 includes the second end face 22 opposite with the bracket base 1:
The nut 32 can be connected in the second end face 22 of the motor stator 2, the nut 33 with it is described
The threaded connection of screw rod 31 and the nut 33 can be connected to the one side away from the erecting bed 11 of the bracket base 1
On；Alternatively, the nut 32 be connected to the bracket base 1 on the one side of the erecting bed 11, the nut 33
It is threadedly coupled with the screw rod 31 and the nut 33 can be connected in the second end face 22 of the motor stator 2.
This is the further preferred structure type of the threaded connector of the utility model, by further including nut and spiral shell
Mother can be cooperated with screw rod respectively, from axial ends to play fastening effect to stator, complete axial direction limit and
The position-limiting action of radial direction.
Preferably,
When the motor stator 2 includes simultaneously first end face 21 and second end face 22: second mounting hole 20 is platform
Rank hole, including the first hole section 201 close to the first end face 21 and the second hole section 202 close to the second end face 22, and
The diameter for second hole section 202 that the diameter of first hole section 201 is greater than.By setting stepped hole for the second mounting hole
Structure type, enable to close to stator upper surface (i.e. second end face) aperture ratio lower end surface it is small so that be located at upper end
The nut in face can be overlayed by fastening on upper surface, to complete the axially position to stator, and prevents the first of positioning pin
Section is stretched out from this, guarantees the axially position effect to stator.
The utility model also provides a kind of compressor comprising preceding described in any item electric motor mounting structures.
The utility model provides a kind of installation fixed form of motor stator in refrigerator piston compressor.It is practical using this
Motor stator in refrigerator piston compressor common at present can be used four spiral shells by installation fixed form provided by novel
The fixed hole bit quantity of nail hole installation is reduced to two, by the installation hole count for reducing compressor base frame stabilizer blade and motor stator
Amount, can largely reduce the material utilization amount of compressor base frame and motor stator, to reduce the whole material of compressor
Expect cost, enhances the market competitiveness of piston compressor.On the other hand, by using motor stator provided by the utility model
Mounting means can guarantee that motor stator when even bipod installation is fixed using three feet, is still able to maintain stronger along electricity
The fixed force of machine inner hole radial direction reduces the offline rate of product and finished product reliability in compressor production process.This is practical
Also can while compressor electric motor mounting means provided by novel can not decline guaranteeing the performance of compressor, cost reduces
The stability and reliability for guaranteeing motor stator installation and compressor complete machine, are conducive to the cost effective and small-sized of compressor
Change.
Fixed form, the motor are installed for existing 2 four screw hole of refrigerator piston compressor motor stator as shown in Figure 1
It is four stabilizer blades with threaded hole of setting on compressor base frame that stator 2, which installs fixed form, while in 2 iron core of motor stator
On four Angle Positions four light through-holes of identical relative position are set.When motor stator 2 is installed, it is fixed to be passed through using four screws
Motor stator 2 is fixed by the threaded hole on cooperation compressor base frame stabilizer blade for four light through-holes on sub- iron core.Motor is fixed
Son 2 is in axial direction positioned and is fixed by screw cap and 1 stabilizer blade end face of compressor base frame, and motor stator 2 is radially
It is fixed by the frictional force between stator faces and screw cap end face, compressor base frame stabilizer blade end face.For motor stator
Iron core is formed by the silicon steel plate stacking of multi-disc same thickness, and the production moulding process of silicon steel sheet directly determines its table
The coefficient of friction in face will not be very high.Another aspect screw cap end face and compressor base frame stabilizer blade end face are half essence/polished surface,
This also determines that the skin-friction coefficient of the two will not be too high.Therefore, when the installation using the fixed motor stator 2 of four screws
When mode, by what is generated between motor stator end face and compressor base frame stabilizer blade end face, motor stator end face and screw cap end face
Radial aspect frictional force allowance will not be especially big.And radial direction frictional force size is also proportional to the axis after screw fastening
To pressure size, i.e. screw Tightening moment.When needing biggish radial frictional force or radial frictional force safety allowance, then need
Want biggish screw Tightening moment.Since stator core is formed by the silicon steel plate stacking of multi-disc same thickness, when using four
When the fixed motor stator core of screw, four light through-hole near zones in pressure and stator core suffered by the axial direction other
Position pressure suffered by the axial direction has apparent difference, therefore the axial direction of 2 end face different location of motor stator is caused to laminate
Coefficient is uneven, and then stator is caused to generate twist distortion, influences the cylindricity and compressor installation quality in stator center hole.
As Fig. 4 a-4b show the positioning pin 4 of motor stator provided by the utility model.The positioning pin 4 be with
The cylindrical stage scalariform constitutional detail of inner hole has bigger diameter end and miner diameter end.Wherein a side end face of bigger diameter end has circumferentially
Uniformly distributed dentalation bites compressor bottom when motor stator 2 and compressor base frame (or bracket base 1) installation cooperate
In seat material, the radial support power much larger than plane contact frictional force is obtained.Miner diameter end is located at another side end face of bigger diameter end, peace
Cooperate when dress with the step mounting hole (or second mounting hole 20) on motor stator 2, the fit system of the two is interference fit
And the height of miner diameter end is not more than the depth in motor stator concave station hole.One end of miner diameter end, which has, facilitates radial positioning pin 4 to be packed into
Chamfering/draft structure in 2 step matching hole of motor stator.4 inner hole aperture of positioning pin is logical not less than the screw light of motor stator 2
The aperture in hole, passing through when screw being facilitated to install.In addition, the outer profile of radial positioning pin can also in addition to cylindrical structure
Think polygonal column structure.
It is fixed for positioning pin radial in motor stator fixed form provided by the utility model and motor as shown in Figures 2 and 3
The assembly method of son 2.Wherein radial positioning pin miner diameter end by interference fit insertion 2 concave station hole of motor stator (or second peace
Fill hole 20) in.4 miner diameter end height of positioning pin is not more than the concave station hole depth of motor stator 2.Bigger diameter end anodontia end face and motor are fixed
Sub 2 end faces, which are engaged, completes axial direction positioning.
It is as shown in Figures 2 and 3 the installation fixed form of motor stator 2 provided by the utility model.Fig. 2 and 3 is pressed first
It is middle that radial positioning pin is fitted into the concave station hole of motor stator 2, fastening screw, which is reused, by motor stator 2 is mounted on compressor
On pedestal.After being installed, the teeth of the bigger diameter end side of radial positioning pin bite compressor base frame upper support leg mating surface, are formed
Much larger than the radially fixed power of plane contact frictional force.It can be using motor stator mounting means provided by the utility model
Also there is biggish motor radially fixed power when using relatively small mounting screw fastening force.Guarantee compressor reliability and
Under the premise of stability, it can not only achieve the purpose that reduce compressor complete machine cost, additionally it is possible to guarantee that motor stator does not generate
Torsional deformation, rotor with higher assemble fit quality.
Preferably, the compressor is refrigeration compressor, and the compressor is piston compressor.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.The above is only the preferred embodiment of the utility model, it is noted that for the art
For those of ordinary skill, without deviating from the technical principle of the utility model, several improvements and modifications can also be made,
These improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (11)
1. a kind of electric motor mounting structure, it is characterised in that: include:
Bracket base (1) is provided with erecting bed (11) on the bracket base (1), is provided with first on the erecting bed (11)
Mounting hole (10)；
Motor stator (2), being provided on the motor stator (2) can the second installation corresponding with the first mounting hole (10)
Hole (20)；
Threaded connector (3), including screw rod (31), the screw rod (31) can run through first mounting hole (10) and institute simultaneously
It states in the second mounting hole (20)；
Positioning pin (4) is inserted into second mounting hole (20), and the positioning pin (4) have pass through along its length
The interior mesopores (44) inside the positioning pin are worn, the interior mesopores (44) can allow the screw rod (31) to pass through, and institute
Stating on the mounting surface opposite with the erecting bed (11) of positioning pin (4) also has with convex towards the direction of the erecting bed (11)
Bulge-structure (40), the bulge-structure (40) out can be embedded in the operative end surface of the erecting bed (11) by external force
(111) radial limit is formed to the motor stator (2) in.
2. electric motor mounting structure according to claim 1, it is characterised in that:
The bulge-structure (40) is the dentalation, needle-shaped stretched out from the mounting surface towards the direction of the erecting bed (11)
At least one of structure and fenestral fabric.
3. electric motor mounting structure according to claim 2, it is characterised in that:
The bulge-structure (40) is multiple, and in uniformly arrangement on the mounting surface.
4. electric motor mounting structure according to any one of claim 1-3, it is characterised in that:
The hardness of the bulge-structure (40) is higher than the hardness of the erecting bed (11)；Alternatively, the bulge-structure (40) and institute
It states positioning pin (4) to be an integral structure, the erecting bed (11) is an integral structure with the bracket base (1), and described fixed
The material hardness of position pin (4) is higher than the material hardness of the bracket base (1).
5. electric motor mounting structure according to any one of claim 1-3, it is characterised in that:
The positioning pin (4) is stepped cylindrical body or step-like prism with central axis, including along the central axis
The first segment (41) and second segment (42) of the stepped distribution in line direction, the cross-sectional area of the first segment (41) are less than described the
The cross-sectional area of two sections (42), to form step surface (43) in the first segment (41) and the second segment (42) connecting position,
And the first segment (41) is inserted into second mounting hole (20), the bulge-structure (40) is formed in the second segment
(42) and on the end face opposite with the first segment (41), and the motor stator (2) has and the bracket base (1) phase
Pair first end face (21), and the step surface (43) can be connected on the first end face (21).
6. electric motor mounting structure according to claim 5, it is characterised in that:
When the positioning pin (4) is stepped cylindrical body, the first segment (41) and the second segment (42) they are cylindrical body, and
The diameter of the first segment (41) is less than the diameter of the second segment (42), and the diameter of the first segment (41) is greater than or equal to
The diameter of second mounting hole (20), so as to be formed as interference between the first segment (41) and second mounting hole (20)
Cooperation or transition fit, the diameter of the second segment (42) are greater than the diameter of second mounting hole (20), in the step
It is formed and is abutted at face (43).
7. electric motor mounting structure according to claim 5, it is characterised in that:
The first segment (41) of the positioning pin (4) is fixed less than or equal to the motor along the length of the central axial direction
Depth of second mounting hole (20) of sub (2) along the central axial direction；And/or described the of the positioning pin (4)
The free end of one section (41) is additionally provided with chamfering or draft structure (45).
8. electric motor mounting structure according to claim 5, it is characterised in that:
The threaded connector (3) further includes nut (32) and nut (33), and the nut (32) and the screw rod are integrated knot
Structure, the motor stator (2) includes the second end face opposite with the bracket base (1) (22):
The nut (32) can be connected in the second end face (22) of the motor stator (2), the nut (33) with
The screw rod (31) is threadedly coupled and the nut (33) can be connected to the bracket base (1) away from the erecting bed
(11) on one side；Alternatively, the nut (32) be connected to the bracket base (1) away from the erecting bed (11) one
On side, the nut (33) is threadedly coupled with the screw rod (31) and the nut (33) can be connected to the motor and determine
In the second end face (22) of sub (2).
9. electric motor mounting structure according to claim 8, it is characterised in that:
When the motor stator (2) includes simultaneously first end face (21) and second end face (22): second mounting hole (20)
For stepped hole, including the first hole section (201) close to the first end face (21) and second close to the second end face (22)
Hole section (202), and the diameter of second hole section (202) that the diameter of first hole section (201) is greater than.
10. a kind of compressor, it is characterised in that: including electric motor mounting structure of any of claims 1-9.
11. compressor according to claim 10, it is characterised in that: the compressor is refrigeration compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346698.2U CN208835847U (en) | 2018-08-20 | 2018-08-20 | A kind of electric motor mounting structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346698.2U CN208835847U (en) | 2018-08-20 | 2018-08-20 | A kind of electric motor mounting structure and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835847U true CN208835847U (en) | 2019-05-07 |
Family
ID=66309893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821346698.2U Withdrawn - After Issue CN208835847U (en) | 2018-08-20 | 2018-08-20 | A kind of electric motor mounting structure and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923554A (en) * | 2018-08-20 | 2018-11-30 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric motor mounting structure and compressor |
| CN113452186A (en) * | 2021-06-23 | 2021-09-28 | 中国船舶重工集团衡远科技有限公司 | Underwater motor stator sealing assembly |
-
2018
- 2018-08-20 CN CN201821346698.2U patent/CN208835847U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923554A (en) * | 2018-08-20 | 2018-11-30 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric motor mounting structure and compressor |
| CN108923554B (en) * | 2018-08-20 | 2024-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor mounting structure and compressor |
| CN113452186A (en) * | 2021-06-23 | 2021-09-28 | 中国船舶重工集团衡远科技有限公司 | Underwater motor stator sealing assembly |
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