CN106160351A - Motor and the manufacture method of assemble method and motor case thereof - Google Patents
Motor and the manufacture method of assemble method and motor case thereof Download PDFInfo
- Publication number
- CN106160351A CN106160351A CN201610525698.8A CN201610525698A CN106160351A CN 106160351 A CN106160351 A CN 106160351A CN 201610525698 A CN201610525698 A CN 201610525698A CN 106160351 A CN106160351 A CN 106160351A
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- CN
- China
- Prior art keywords
- stator
- motor case
- motor
- metal material
- stator module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention belongs to motor and electrical generator fields, be specifically related to the manufacture method of a kind of motor and assemble method thereof and motor case.Present invention seek to address that and prior art exists space between motor case and the contact surface of stator and is unfavorable for the problem that heat conducts.For this purpose it is proposed, the motor case manufacture method that the present invention provides comprises the following steps: to provide stator module；It is cast to molten metal material on described stator module；And cooling down described metal material to form described motor case so that described motor case is formed around the annular component of described stator module.Being contacted for the seamless face of tight silk with contacting of stator by the motor case that above-mentioned steps manufactures, both are formed as an entirety in other words so that the heat on stator can be delivered to motor case to greatest extent.Compared to the assembling mode of existing motor case and stator, the heat-transfer effect of the present invention significantly improves, and motor can be made to work in the state of more stable.
Description
Technical field
The invention belongs to motor and electrical generator fields, be specifically related to a kind of motor and assemble method thereof and motor case
Manufacture method.
Background technology
The range of application of motor is relatively wide, particularly in recent years, as China promotes manufacturing industry transition and upgrade, in various intelligence
In manufacture field, with motor as power and to be driven the automaticity of automation equipment of control more and more higher.This
Under trend, the equipment of every profession and trade is also more and more higher to the requirement of motor, and such as efficiency is high, power density is big.But, motor is being grown
In the operation process of time, problem of temperature rise often governs the Effec-tive Function of motor, also can reduce the use longevity of motor further
Life.
The motor course of work necessarily leads to heat, only the heat of motor is reasonably evacuated so that it is reach one
Individual rational temperature range, the long-time steady operation of guarantee motor.Casing Water Cooling Technology commonly used at present is in reality
In the application process of border, its heat-sinking capability does not give full play of, and reason is motor case and stator with interference fit
Mode is press fit into together so that contacting between motor case with stator is more point cantact, and contact area is less, is unfavorable for
The conduction of heat.Therefore, causing motor operationally, shell temperature is not high, but motor internal temperature is very high, seriously hinders
The Effec-tive Function of motor.
Therefore, this area needs a kind of method that can solve the problem that the problems referred to above to improve the radiating efficiency of motor.
Content of the invention
It in order to solve the problems referred to above of the prior art, has been and has solved contacting of motor case and stator in prior art
There is space between face and be unfavorable for the problem that heat conducts, the invention provides the manufacture method of a kind of motor case, it is special
Levy and be to comprise the following steps: to provide stator module；It is cast to the metal material of molten state on described stator module；And
Cool down described metal material to form described motor case so that described motor case is formed around described stator module
Annular component.
In the preferred embodiment of above-mentioned manufacture method, the step of described offer stator module includes: provide stator；
Stator winding is provided；And be wound into described stator winding on described stator.
In the preferred embodiment of above-mentioned manufacture method, described motor case is cast into the ring of one or both ends opening
Shape component.
In the preferred embodiment of above-mentioned manufacture method, described method also includes: provided core before casting so that
Form cooling duct and the inlet connecting with described cooling duct and liquid outlet in described motor case after casting, with
Just coolant can be at described motor case internal circulation flow.
In the preferred embodiment of above-mentioned manufacture method, it is characterised in that described metal material is iron, and/or
Described stator is fabricated from iron.
Present invention also offers a kind of motor assemble method, it is characterised in that comprise the following steps: to provide stator module；Will
The metal material of molten state is cast on described stator module；And cool down described metal material to form motor case,
Described motor case is made to be formed around the annular component of described stator module.
In the preferred embodiment of above-mentioned motor assemble method, the step of described offer stator module includes: it is fixed to provide
Son；Stator winding is provided；And be wound into described stator winding on described stator.
In the preferred embodiment of above-mentioned motor assemble method, it is characterised in that described motor case is cast into one
End or the annular component of both ends open.
In the preferred embodiment of above-mentioned motor assemble method, it is characterised in that described method also includes: in casting
Premise is for core so that formed in described motor case after casting cooling duct and with entering that described cooling duct connects
Liquid mouth and liquid outlet, in order to coolant can be at described motor case internal circulation flow.
In the preferred embodiment of above-mentioned motor assemble method, it is characterised in that described metal material is iron, and/
Or described stator is fabricated from iron.
Present invention also offers a kind of motor, it includes stator, the stator winding being coiled on stator and around described
The casing of stator, it is characterised in that described casing is attached on the outer surface of described stator by forging type.
It will be appreciated to those of skill in the art that in the inventive solutions, owing to motor case is directly cast
Making on the outer surface of stator, motor case almost becomes one structure with stator, and this makes motor case inner surface and stator
The contact rate of outer surface is almost 100%, and then enables the heat of stator to be delivered to motor case to greatest extent, then by
Its heat is conducted by the coolant of cooling duct internal circulation flow.Join with press-fiting of stator compared to existing motor case
Conjunction mode (contact rate is less than 30%), the heat-transfer effect of the present invention significantly improves, and can make motor in the state of more stable
Work.
The manufacture method of scheme the 1st, a kind of motor case, it is characterised in that comprise the following steps: to provide stator module；Will be molten
The metal material changed is cast on described stator module；And cool down described metal material to form described motor case, make
Obtain described motor case and be formed around the annular component of described stator module.
Scheme the 2nd, the method according to scheme 1, it is characterised in that the step of described offer stator module is wrapped further
Include: stator is provided；Stator winding is provided；And be wound into described stator winding on described stator.
Scheme the 3rd, the method according to scheme 2, it is characterised in that described motor case is cast into one or both ends and opens
The annular component of mouth.
Scheme the 4th, the method according to scheme 3, it is characterised in that described method also includes: offer type before casting
Core so that form cooling duct and the inlet connecting with described cooling duct after casting in described motor case and go out
Liquid mouth, in order to coolant can be at described motor case internal circulation flow.
Scheme the 5th, the method according to according to any one of scheme 1 to 4, it is characterised in that described metal material is iron, and
And/or stator is fabricated from iron described in person.
Scheme the 6th, a kind of motor assemble method, it is characterised in that comprise the following steps: to provide stator module；Gold by fusing
Belong to material to be cast on described stator module；And cool down described metal material to form motor case so that described motor
Casing is formed around the annular component of described stator module.
Scheme the 7th, the method according to scheme 6, it is characterised in that the step of described offer stator module is wrapped further
Include: stator is provided；Stator winding is provided；And be wound into described stator winding on described stator.
Scheme the 8th, the method according to scheme 7, it is characterised in that described motor case is cast into one or both ends and opens
The annular component of mouth.
Scheme the 9th, the method according to scheme 8, it is characterised in that described method also includes: offer type before casting
Core so that form cooling duct and the inlet connecting with described cooling duct after casting in described motor case and go out
Liquid mouth, in order to coolant can be at described motor case internal circulation flow.
Scheme the 10th, the method according to according to any one of scheme 6 to 9, it is characterised in that described metal material is iron, and
And/or stator is fabricated from iron described in person.
Scheme the 11st, a kind of motor, including stator, the stator winding being coiled on stator and the casing around stator, its
Being characterised by, described casing is attached on the outer surface of described stator by forging type.
Brief description
Fig. 1 is the half section of assembling structure between the structure of motor case of the prior art and motor case and stator
Figure, owing to top and the bottom of motor shaft are symmetrical structure, thus merely illustrates the sectional view of rotating shaft top half；
Fig. 2 is the partial enlarged drawing of motor case and stator contact position in Fig. 1；
The half sectional view of the structure that Fig. 3 is the structure of the motor case of the present invention and stator is mounted in motor case,
Owing to top and the bottom of motor shaft are symmetrical structure, thus merely illustrate the sectional view of rotating shaft top half；
Fig. 4 is the partial enlarged drawing of motor case and stator contact position in Fig. 3；
Fig. 5 is the flow chart of the motor case manufacture method of the present invention.
Detailed description of the invention
The preferred embodiment of the present invention is described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the know-why of the present invention, it is not intended that limit the scope of the invention.
It should be noted that in describing the invention, term " is installed ", " being connected ", " connection " should be interpreted broadly, example
As being fixing connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be to be electrically connected
Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this
For skilled person, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Present invention seek to address that in prior art insufficient contact between motor case and stator and be unfavorable for that heat conducts
Problem.First, in conjunction with Fig. 1, heat conduction efficiency in prior art is illustrated the reason that low.Fig. 1 is of the prior art
Between the structure of motor case and motor case and stator assemble structure half sectional view, due to motor shaft top with
Bottom is symmetrical structure, thus merely illustrates the sectional view of rotating shaft top half.As it is shown in figure 1, motor case 1 is annular structure
Part, offers cooling duct 3 between the shell wall and inner wall of motor case 1, shell wall is provided with inlet 11 and goes out
Liquid mouth 12, coolant flows into cooling duct 3 from inlet 11, flows out from liquid outlet 12, so that coolant can be at motor machine
Formed in shell 1 and circulate, and then the heat by motor case 1 conducts.In the cavity of motor case 1, stator is installed
2nd, be coiled in the stator winding on stator, rotor and rotating shaft (rotor and rotating shaft are not shown in FIG), wherein, motor case 1 with
Stator 2 is press fit into together in an interference fit.Specifically, motor case 1 and stator 2 are entered by existing manufacturing process
Row processing and manufacturing, the external diameter of stator 2 is equal or slightly larger than the internal diameter of motor case 1, then by stator 2 from the one of motor case 1
Individual openend is pressed into, and the miscellaneous part combination assembling with motor again, forms the motor of finished product simultaneously.But, according to this group
Dress mode, no matter the outer surface of stator 2 and the inner surface of motor case 1 are polished to obtain how smooth, the two mutually assemble zero
Part also is difficult to accomplish the contact that tight silk is seamless, and motor case 1 must be multiple point cantact with the contact position 4 of stator 2, actual connects
Tactile rate is no more than 30%, there will necessarily be certain space between motor case 1 and stator 2.Heat transfer coefficient due to air
Very low, thus reduce the heat-transfer capability of motor.Therefore, stator 2 produce heat some need to be delivered to by air
Motor case 1, and then by the fluid of cooling duct internal circulation flow, its heat is conducted.With reference to Fig. 2, this figure is in Fig. 1
Motor case and the partial enlarged drawing of stator contact position.As in figure 2 it is shown, motor case 1 is actual with the contact position 4 of stator 2
Upper is multiple point cantact, in practice its actual contact rate at most only about 30% so that pyroconductivity is very low.This area
Skilled artisan will appreciate that, exactly because motor case 1 and stator 2 are assembled together by extruding, make motor case 1 with
There is space between stator 2, thus the ability that the heat reducing stator 2 outwards conducts, when causing motor to work, motor housing
Temperature is not high, but the phenomenon that motor internal temperature is still very high.Technical scheme can solve motor machine well
The problem that there is space between shell 1 and stator 2.
With reference to Fig. 3, Fig. 3 is the half section that the structure of the motor case of the present invention and stator are mounted to motor casing structure
Figure, owing to top and the bottom of motor shaft are symmetrical structure, thus merely illustrates the sectional view of rotating shaft top half.Such as figure
Shown in 3, motor case 1 is annular construction member, offers cooling duct 3, shell between the shell wall and inner wall of motor case 1
Being provided with inlet 11 and liquid outlet 12 on wall, coolant flows into cooling duct 3 from inlet 11, flows out from liquid outlet 12, from
And enable coolant to be formed in motor case 1 and circulate, and then the heat by motor case 1 conducts.At motor
Stator winding, rotor and the rotating shaft that the 2nd, stator be coiled on stator is installed in the cavity of casing 1 (rotor and rotating shaft figure do not show
Go out).In the inventive solutions, motor case 1 is formed as one structure by casting and stator 2.Specifically, reference
Fig. 5, Fig. 5 are the flow charts of the motor case manufacture method of the present invention.As it is shown in figure 5, under the manufacture method of motor case includes
Row step: step 110, provides stator；Step 120, provides stator winding；Stator winding is wound on stator simultaneously by step 130
Therefore stator module is formed；Step 140, provides core；Step 150, will melt casting of metals to stator module；Step 160,
Cooling metal material is to form motor case.By above-mentioned steps, motor case 1 is formed around the ring-type structure of stator module
Part so that motor case 1 contacts for the seamless face of tight silk with contacting of stator 2.Specifically, with reference to Fig. 4, Fig. 4 is motor in Fig. 3
Casing and the partial enlarged drawing of stator contact position.As shown in Figure 4, whole owing to motor case 1 and stator 2 being cast into one
Body, so that the real contact area of the contact position 5 of motor case and stator 2 can reach almost 100%, i.e. motor
Casing 1 and stator 2 almost permeate an entirety.Further, when manufacturing motor case 1 according to above-mentioned steps, motor case 1
It is cast into the annular component of one or both ends opening.Further, core can be provided before casting so that after casting
Form cooling duct 3 and the inlet 11 connecting with cooling duct 3 and liquid outlet 12 in motor case 1, in order to coolant
At motor case 1 internal circulation flow, thus more preferable radiating effect can be reached.The metal material being mentioned above can be
Iron, stator also can be fabricated from iron.
It will be appreciated to those of skill in the art that owing to using above-mentioned manufacture method, motor case 1 and stator 2 by former
That comes press-fits the structure that relation becomes casting integrated, and stator 2 is become seamless with contacting of motor case 1 by original point cantact
The face contact of gap, the heat producing due to stator 2 be no longer necessary to carry out transmitting by the low air of heat transfer coefficient but directly with
Motor case 1 outwards conducts heat as an entirety, and therefore, the heat on stator 2 can be delivered to motor to greatest extent
Casing 1, and then by the coolant of cooling duct 3 internal circulation flow, its heat is conducted.Compared to existing motor case 1
With the assembling mode of stator 2, the heat-transfer effect of the present invention significantly improves so that motor can work in the state of more stable
Present invention also offers a kind of motor assemble method, the method comprises the following steps: to provide stator module；Will fusing
The metal material of state is cast on stator module；And cooling metal material is to form motor case 1 so that motor case
1 annular component being formed around stator 2 assembly.Wherein, the step of stator module is provided to farther include: to provide stator；Carry
For stator winding；And be wound into stator winding on stator.Further, motor case 1 is cast into one or both ends opening
Annular component.Further, before casting, core is provided so that in motor case 1, after casting, form cooling duct 3
And the inlet 11 that connects with cooling duct 3 and liquid outlet 12, in order to coolant can be at motor case 1 internal circulation flow.
The metal material being mentioned above can be iron, and stator also can be fabricated from iron.
Present invention also offers a kind of motor, this motor includes stator, the stator winding being coiled on stator and cincture
The casing of stator, casing is attached on the outer surface of stator by forging type.
So far, technical scheme is described already in connection with preferred embodiment shown in the drawings, but, this area
Skill will readily appreciate that, protection scope of the present invention is expressly not limited to these detailed description of the invention.Without departing from this
On the premise of the principle invented, correlation technique feature can be made equivalent change or replacement by those skilled in the art, these
Technical scheme after changing or replacing it falls within protection scope of the present invention.
Claims (10)
1. the manufacture method of a motor case, it is characterised in that comprise the following steps:
Stator module is provided；
It is cast to molten metal material on described stator module；And
Cool down described metal material to form described motor case so that described motor case is formed around described stator pack
The annular component of part.
2. method according to claim 1, it is characterised in that the step of described offer stator module farther includes:
Stator is provided；
Stator winding is provided；And
It is wound into described stator winding on described stator.
3. method according to claim 2, it is characterised in that described motor case is cast into one or both ends opening
Annular component.
4. method according to claim 3, it is characterised in that described method also includes: core was provided before casting, makes
Form cooling duct and the inlet connecting with described cooling duct and liquid outlet in described motor case after must casting,
So that coolant can be at described motor case internal circulation flow.
5. method according to any one of claim 1 to 4, it is characterised in that described metal material is iron, and/or
Described in person, stator is fabricated from iron.
6. a motor assemble method, it is characterised in that comprise the following steps:
Stator module is provided；
It is cast to molten metal material on described stator module；And
Cool down described metal material to form motor case so that described motor case is formed around described stator module
Annular component.
7. method according to claim 6, it is characterised in that the step of described offer stator module farther includes:
Stator is provided；
Stator winding is provided；And
It is wound into described stator winding on described stator.
8. method according to claim 7, it is characterised in that described motor case is cast into one or both ends opening
Annular component.
9. method according to claim 8, it is characterised in that described method also includes: core was provided before casting, makes
Form cooling duct and the inlet connecting with described cooling duct and liquid outlet in described motor case after must casting,
So that coolant can be at described motor case internal circulation flow.
10. the method according to according to any one of claim 6 to 9, it is characterised in that described metal material is iron, and/or
Described in person, stator is fabricated from iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525698.8A CN106160351A (en) | 2016-07-05 | 2016-07-05 | Motor and the manufacture method of assemble method and motor case thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525698.8A CN106160351A (en) | 2016-07-05 | 2016-07-05 | Motor and the manufacture method of assemble method and motor case thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160351A true CN106160351A (en) | 2016-11-23 |
Family
ID=58061141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610525698.8A Pending CN106160351A (en) | 2016-07-05 | 2016-07-05 | Motor and the manufacture method of assemble method and motor case thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160351A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014087A (en) * | 1998-06-17 | 2000-01-14 | Nissan Motor Co Ltd | Structure and method for cooling motor stator |
| CN101944785A (en) * | 2010-08-16 | 2011-01-12 | 宁波韵升股份有限公司 | Motor stator shell and manufacturing method thereof |
| CN203180703U (en) * | 2009-08-24 | 2013-09-04 | 西门子公司 | Motor stator |
| CN103732335A (en) * | 2010-12-14 | 2014-04-16 | 大众汽车有限公司 | Method for producing an electric motor housing part blank and electric motor housing part |
-
2016
- 2016-07-05 CN CN201610525698.8A patent/CN106160351A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014087A (en) * | 1998-06-17 | 2000-01-14 | Nissan Motor Co Ltd | Structure and method for cooling motor stator |
| CN203180703U (en) * | 2009-08-24 | 2013-09-04 | 西门子公司 | Motor stator |
| CN101944785A (en) * | 2010-08-16 | 2011-01-12 | 宁波韵升股份有限公司 | Motor stator shell and manufacturing method thereof |
| CN103732335A (en) * | 2010-12-14 | 2014-04-16 | 大众汽车有限公司 | Method for producing an electric motor housing part blank and electric motor housing part |
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Application publication date: 20161123 |
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