CN1275373C - Motor and its mfg. method - Google Patents
Motor and its mfg. method Download PDFInfo
- Publication number
- CN1275373C CN1275373C CNB031249116A CN03124911A CN1275373C CN 1275373 C CN1275373 C CN 1275373C CN B031249116 A CNB031249116 A CN B031249116A CN 03124911 A CN03124911 A CN 03124911A CN 1275373 C CN1275373 C CN 1275373C
- Authority
- CN
- China
- Prior art keywords
- body part
- coil
- mentioned
- motor
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H02K15/10—Applying solid insulation to windings, stators or rotors
- H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The object of the present invention is to provide a motor with which the insulation and heat dissipation can be enhanced with low cost, and especially, the gap between the axial end surface of the coil, and the side lid body part of the load or the opposed lid body part on the load side can be reduced. When silicone insulators 50, 52 having extension property and better insulation than that of air contact with both of the inner side surfaces 12B1, 12C1 and axial end surface 14A, 14B of the lid body part, silicone insulators 50, 52 are sandwiched between the inner side surfaces 12B1, 12C1 of the lid body part 12B on the load side and the lid body part 12C opposed to the load side, and the axial end surface 14A, 14B of the coil 14 facing the inner side surface 12B1, 12C1.
Description
Technical field
The present invention relates to a kind of motor and manufacture method thereof that possesses stator and rotor in outer cover, described stator has coil and fixed iron core, and described rotor is in the inboard rotation of outer cover configuration freely.
Background technology
General motor possesses stator and rotor in outer cover, described stator has coil and fixed iron core, and described rotor sideway swivel within it freely disposes.In most of the cases, cover on main part cylindraceous substantially both sides outward and have load side lid and anti-load side lid.
Minimal insulation such as enamel-cover in the coiling of above-mentioned coil, have been implemented, but, owing to flow through big electric current, so, wind the line under the opposed situation of air with respect to this at outer cover (main part, load side cover body part or anti-load side cover body part), according to the IEC.JIS standard, must be across the distance of regulation.So, generally from this coil and axial end to load side cover body part or the anti-load side cover body part, be formed with corresponding interval.
As a kind of method that this interval is dwindled in control as far as possible, proposition the special manufacturing technology that is called the coil die stamping method arranged.(for example with reference to patent documentation 1).
The method is with resin fixed iron core, coil and outer cover to be molded into an integral body, can further shorten the distance from the axial end of coil to the axial end portion outer surface of outer cover.
[patent documentation 1]: the spy opens flat 10-271720 communique.
Yet, this method that is called coil die stamping, though can shorten the axial length of motor really to a certain extent, because the manufacturing equipment of product costs an arm and a leg, so there is the very high problem of product price.
And, owing to form whole outer cover with resin, so also there is the problem of poor radiation.
Summary of the invention
The present invention proposes for solving such problem, its purpose is to provide a kind of low cost, insulating properties and thermal diffusivity good, interval between axial end and load side cover body part or the anti-load side cover body part is dwindled, make the motor that the axial length of motor integral body shortens.
Motor of the present invention, be included in the non-resin system outer cover and the coil that have cover body part on the outer cover main part side, it is characterized in that: between above-mentioned cover body part and above-mentioned coil, sandwich and have retractility and the insulation property insulator better, and this insulator is in and above-mentioned cover body part and the contacted state of coil than air.
The manufacture method of motor of the present invention, this motor comprises: have the non-resin system outer cover of the 1st cover body part in outer cover main part side and have the coil of the 1st end face, its manufacture method is characterised in that, comprising:
To have retractility and the insulating properties insulator better than air, with the contacted state of above-mentioned the 1st cover body part under the operation that disposes; And
Above-mentioned the 1st end face is pushed on this insulator and it is contacted in this insulator, this coil is installed to operation in the above-mentioned outer cover.
In the present invention, between the face of cover body part (load side cover body part or anti-load side cover body part) and coil, sandwich the insulation property insulator better than air.By sandwiching insulator, the interval (gap) of above-mentioned cover body part and coil is further dwindled, can shorten the axial length of motor.
Because insulator has retractility, so, can remedy the difference of the different dilatabilities that cause of coefficient of thermal expansion of coil and outer cover etc. well.
Outer cover itself comprises that main part and cover body part all can adopt the good material of thermal diffusivity, so can make the good thermal diffusivity of the whole maintenance of motor.
Moreover, compare with the method for coil integral body being carried out mold pressing, do not need extensive manufacturing equipment, so cost is low especially, and assembling and make also easy.
And, in the present invention, the concrete material of insulator or shape etc. are not limited especially.Its details as described later.
Description of drawings
Fig. 1 is that one-sided (upside of figure) that only will be referred to the motor of embodiment of the present invention carries out the front view that section shows.
Fig. 2 is another routine oblique view that insulator is shown.
Embodiment
Below with reference to the accompanying drawings, describe embodiments of the present invention in detail.
Fig. 1 only carries out section to one-sided (upside among the figure) of the axial section of the motor that relates to embodiment of the present invention and represents.
This motor 10 comprises in outer cover 12: have the stator 18 of coil 14 and fixed iron core 16, the rotor 20 that sideway swivel is within it freely disposed.Outer cover 12 in the both sides of main part 12A cylindraceous, has load side cover body part 12B and anti-load side cover body part 12C.But in this embodiment, main part 12A and anti-load side cover body part 12C form one, and having constituted has the cylinder at end outer cover 12S.Outer cover 12 is by the good material of thermal diffusivity, and for example material such as steel or aluminium forms.
Said stator 18, its fixed iron core 16 is fixed on the interior week of the main part 12A of outer cover 12, and the part of coil 14 is extended to the axial both sides of fixed iron core 16.Axial end 14A, the 14B of coil 14, mutually opposed with each medial surface 12B1,12C1 of two cover body part 12B, 12C.
On the other hand, in the central portion of above-mentioned rotor 20, be pressed into motor drive shaft 22.
From load side cover body part 12B and anti-load side cover body part 12C, vertically with the motor drive shaft 22 coaxial circular protrusions 24,26 that are provided with, disposed bearing 28,30 in the inboard of this projection 24,26, bearing 28,30 is used for support rotor 20, and makes rotor 20 rotatable freedom.
Limit by formed step 32,34 on the motor drive shaft 22 the axial position of bearing 28,30 and rotor 20.In addition, the axial location of bearing 28,30 and two cover body part 12B, 12C is performed such restriction, that is, utilize corrugated gasket 36 by bearing 30, motor drive shaft 22, and bearing 28 is pressed on the projection 24 on the formed step 24A.And corrugated gasket 36 also has the effect of the manufacturing of remedying, assembly error.And mark 38 is meant the lead that is used for to coil 14 supply of current, and the reach through hole 40 of the main part 12A by outer cover 12 directly is arranged in the outer cover 12.Moreover mark 42 is meant the end that is used to the to rely on reach through hole 40 38 impaired annexes that prevent to go between, and mark 44 refers to oil sealings.
At this, describe near the structure of axial end 14A, 14B of coil 14 in detail.
Axial medial surface 12B1, the 12C1 of load side cover body part 12B and anti-load side cover body part 12C and and axial end 14A, the 14B of this axial medial surface 12B1, the opposed coil 14 of 12C1 between, disposed silicon (insulator) 50,52 respectively.This silicon the 50, the 52nd has shrinkage and the insulation property material better than air, therefore, as relating to insulator of the present invention, has excellent characteristic.
And the thermal conductivity of silicon 50,52 is also good, so have easily the heat transferred that will accumulate in the coil 14 effect to the outer cover 12.
This silicon 50,52, with both contacted states of end face 14A, the 14B of two medial surface 12B1,12C1 and coil 14 under, be clipped in both gaps 54,56.So, in this gap 54,56, there is not air, have only this silicon 50,52.Therefore, the gap 54,56 of end face 14A, the 14B of these two medial surface 12B1,12C1 and coil is set to littler than past (narrow).
Below, the effect of this motor 10 is described in the assembling that this motor 10 is described, manufacture method.
When assembling this motor 10, at first, on the circumferential position of the above-mentioned projection 26 in the medial surface 12C1 of the anti-load side cover body part 12C that round-ended cylinder outer cover 12S is arranged, apply thicker silicon (gel insulator) 52.In addition, this fashion is not installed load side cover body part 12B.
Then, with the axial end 14B of coil 14 push silicon 52 on one side, interior all sides that stator 18 is inserted in the main part 12A of cylinder outer cover 12S are also fixed on one side.The flexible cord 38 of coil 14 can be drawn laterally from the inboard of the main part 12A of outer cover 12.And, if it is also apply silicon 52 in the end face 14B of coil 14 side before the assembling, then better.
Under this state, interior all positions of projection 26 in the medial surface of anti-load side cover body part 12C, configuration spring 36 is assembled into the rotor 20 that bearing 30 has been installed on the motor drive shaft 22.
And, in the assembling of stator 18 and rotor 20, also can first assemble rotor 20.
Then, at the axial end 14A of the load side of coil 14 coating silicon 50, and the circumferential position in the projection 24 of the medial surface 12B1 of load side cover body part 12B also applies silicon 50.Then, Yi Bian bearing 32 and oil sealing 44 are combined with the interior circumferential portion of projection 24, Yi Bian slowly push the silicon 50 that has applied, load side cover body part 12B is combined with main part 12A, 12B fixes with not shown bolt with this load side cover body part.
Its result, gap 54,56 at medial surface 12B1, the 12C1 of axial end 14A, the 14B of coil 14 and two cover body part 12B, 12C, only sandwich silicon 50,52 (comparing),, also can obtain the good motor of insulation characterisitic 10 even the interval in gap 54,56 narrows down with the existing motor that has only air.
Moreover silicon 50,52 is because of having retractility, so, can not only remedy assembling, the foozle of each parts, and, under the situation of the interval variation that changes above-mentioned gap 54,56 because of temperature environment, also can adapt to well.
Moreover outer cover 12 itself includes round-ended cylinder cover 12S and load side cover body part 12B, and it is formed by thermal diffusivity good steel or aluminium, so it is good that the heat dissipation characteristics of motor integral body also can keep.
And as can be known clear and definite from above explanation: making this motor 10 does not need manufacturing equipment expensive as resin-molded equipment, so, can make motor 10 with low cost, and its assembling itself is easy.
And, in the above-described embodiment, adopted gel silicon, but the concrete material or the shape of insulator do not limited especially in the present invention as the concrete material of insulator.
For example, adopting under the situation of ying-shaped insulator, can both the easy arrangement insulator to the entire circumference of the axial end of coil.In the case, if adopt (retractility is arranged) insulating trip 60 shown in Figure 2, then assemble especially easily and make.
Moreover, under the situation of utilizing gel silicon to seal around coming insulating trip 60 as shown in Figure 2, can cover near the axial end of coil wholely securely with insulator, can obtain the higher motor of reliability.
And, show in the above-described embodiment the main part of outer cover and anti-load side cover body part integrated example, but also with good grounds its main part of motor and load side cover body part integrated example.In addition, also there are two cover body part all to separate with main part.The present invention all can be applicable to any motor.
And the present invention only is used for the load side of motor or a certain side of anti-load side, also can obtain corresponding effects.So need not fix on both sides one all implements.
The invention effect
According to the present invention, it is good to obtain low-cost, insulating properties and thermal diffusivity, particularly make coil and The clearance gap of cover body part is short, thereby shortens the motor of the whole axial length of motor.
Claims (5)
1, a kind of motor, be included in the non-resin system outer cover and the coil that have cover body part on the outer cover main part side, it is characterized in that: between above-mentioned cover body part and above-mentioned coil, sandwich and have retractility and the insulation property insulator better, and this insulator is in and above-mentioned cover body part and the contacted state of coil than air.
2, motor as claimed in claim 1 is characterized in that: above-mentioned insulator is a ring-type.
3, motor as claimed in claim 2 is characterized in that: above-mentioned insulator is made of the ring-type insulating trip.
4, a kind of manufacture method of motor, this motor comprises: have the non-resin system outer cover of the 1st cover body part in outer cover main part side and have the coil of the 1st end face, its manufacture method is characterised in that, comprising:
To have retractility and the insulating properties insulator better than air, with the contacted state of above-mentioned the 1st cover body part under the operation that disposes; And
Above-mentioned the 1st end face is pushed on this insulator and it is contacted in this insulator, this coil is installed to operation in the above-mentioned outer cover.
5, the manufacture method of motor as claimed in claim 4, above-mentioned outer covering on the aforementioned body portion side also has the 2nd cover body part, above-mentioned coil has the 2nd end face, its manufacture method is characterised in that, comprise: have retractility and an insulating properties insulator better than air with above-mentioned, on above-mentioned the 2nd end face of above-mentioned coil, with the 2nd end face state of contact under the operation that disposes; And
Above-mentioned the 2nd cover body part is pushed on this insulator and it is contacted in this insulator, be installed to the operation in the aforementioned body portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002275347 | 2002-09-20 | ||
| JP2002275347A JP2004112975A (en) | 2002-09-20 | 2002-09-20 | Motor and method of manufacturing motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1495986A CN1495986A (en) | 2004-05-12 |
| CN1275373C true CN1275373C (en) | 2006-09-13 |
Family
ID=32271572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031249116A Expired - Fee Related CN1275373C (en) | 2002-09-20 | 2003-09-19 | Motor and its mfg. method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2004112975A (en) |
| KR (1) | KR100550802B1 (en) |
| CN (1) | CN1275373C (en) |
| TW (1) | TWI228854B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101685202B1 (en) * | 2010-03-08 | 2016-12-09 | 엘지이노텍 주식회사 | Traction motor module and motor electricity bicycle |
| JP5987940B2 (en) | 2015-03-05 | 2016-09-07 | ソニー株式会社 | Motor, actuator and medical support arm device |
| JP6658394B2 (en) * | 2016-08-10 | 2020-03-04 | ソニー株式会社 | Medical support arm device and motor |
| CN111052572B (en) * | 2017-09-29 | 2022-07-12 | 日本电产伺服有限公司 | Motor |
-
2002
- 2002-09-20 JP JP2002275347A patent/JP2004112975A/en active Pending
-
2003
- 2003-07-28 TW TW092120556A patent/TWI228854B/en not_active IP Right Cessation
- 2003-09-15 KR KR1020030063558A patent/KR100550802B1/en not_active IP Right Cessation
- 2003-09-19 CN CNB031249116A patent/CN1275373C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW200405639A (en) | 2004-04-01 |
| TWI228854B (en) | 2005-03-01 |
| KR100550802B1 (en) | 2006-02-09 |
| KR20040025821A (en) | 2004-03-26 |
| CN1495986A (en) | 2004-05-12 |
| JP2004112975A (en) | 2004-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6201321B1 (en) | Apparatus and method for dissipating heat from a motor | |
| US9831747B2 (en) | Motor-driven compressor | |
| CN106796933B (en) | Power supply module and power inverter | |
| US8350174B2 (en) | Pole part of a medium-voltage or high-voltage switch gear assembly, and method for its production | |
| CN1068150C (en) | Alternator for motor vehicle | |
| US20120113603A1 (en) | Electronic circuit device | |
| US20030102750A1 (en) | Rotary electric machine with stator elastic support structure | |
| CN1450711A (en) | Brush holder and mfg method thereof | |
| US11929660B2 (en) | Rotary electric machine | |
| CN1275373C (en) | Motor and its mfg. method | |
| CN109980855A (en) | Motor | |
| JP2002369449A (en) | Motor | |
| CN101065889A (en) | Cover cap | |
| KR20210151983A (en) | Motor and electric device provided with the motor | |
| CN113924718A (en) | Rotating electrical machine and method for manufacturing rotating electrical machine | |
| US10233969B2 (en) | Heat resistant structure for shaft retainer, and actuator | |
| US20220263381A1 (en) | Rotary electric machine | |
| JPWO2019159649A1 (en) | Motors and electrical equipment equipped with them | |
| CN113875133B (en) | Rotary electric machine | |
| US12003148B2 (en) | Rotary electric machine and manufacturing method for rotary electric machine | |
| JP2002142402A (en) | Motor | |
| US20220324298A1 (en) | Device for driving a compressor, and method for manufacturing the device | |
| CN112054619B (en) | Stator structure and motor | |
| WO2021095344A1 (en) | Motor and electrical equipment including same | |
| CN212162993U (en) | Brushless motor's end cover and brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |