CN109787392A - A kind of electric tool and motor and stator apparatus - Google Patents
A kind of electric tool and motor and stator apparatus Download PDFInfo
- Publication number
- CN109787392A CN109787392A CN201711118558.XA CN201711118558A CN109787392A CN 109787392 A CN109787392 A CN 109787392A CN 201711118558 A CN201711118558 A CN 201711118558A CN 109787392 A CN109787392 A CN 109787392A
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- Prior art keywords
- conductor
- contact site
- insulating body
- stator
- hook
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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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- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A kind of stator apparatus for motor comprising: stator laminated core；Multiple stator winding；Contact site forming device, the contact site forming device have at least one contact site conductor；The contact site conductor is designed at least two stator winding are electrically connected to each other, and each contact site conductor has at least one Connection protrusion and at least one hook, and hook welds together with Connection protrusion.Contact site conductor is arranged on contact site forming device, and there is no need to extra insulation portions to accommodate contact site conductor, while contact site conductor structure is simple, reduces technology difficulty.
Description
Technical field
The present invention relates to a kind of stator apparatus and motors, are especially used for field of power tools, especially electric circular saw.
Background technique
Currently, needing stronger power density with the development of brushless motor, current stator structure will affect motor
Axial length and heat dissipation effect, while being unfavorable for the miniaturization of motor and integrating.
Chinese patent literature CN104426274A discloses a kind of individual insulation division 51 of motor and is mounted on stator core
End face, in this way since the presence of insulation division 51 increases the axial length of motor, while sheet metal component 52A, 52B, 52C need by
Repeatedly bending, so that the manufacturing process of motor becomes complicated.
Chinese patent CN 104272563B discloses a kind of large scale motor, including insulating body 13, and insulating body 13 has
There is the upper side and lower side, since motor size is bigger, sufficient mounting area, contact site conductor can be provided on the upside of insulating body
5 are assembled in insulating body on the upside of insulating body.
Chinese patent CN100442633C discloses a kind of stator for motor, since stator has 14 stators
Tooth, therefore supporting member 11 has biggish diameter, so three distributor tracks 12,13,14 do not have a bending part, distributor track 12,
First contact element 31,32,33,34,35 on 13,14 and it is designed to that the second contact element 36 of grafting tongue piece is respectively set.
And on electric tool, the motor size of use is smaller and smaller, on the upside of the insulating body of one side small size motor
The assembly area of offer is inadequate, leads to first contact element 31,32,33,34,35 and the second contact element for being designed to grafting tongue piece
Part 36 can not be individually designed, can not be directly integrated with power P CB, simultaneously；On the other hand such as in aforementioned large scale motor, contact portion
After conductor 5 is assembled to insulating body on the upside of the insulating body, contact site conductor 5 is then completely exposed outside, contact site conductor 5 and its
The short circuit easy to form of the stator winding of connection, causes adverse consequences.
Summary of the invention
To solve the deficiencies in the prior art, it is an object of the present invention to require according to the compact dimensionsization of motor, one is provided
Kind sheet metal component structure is simple, the short motor of axial length.
A kind of stator apparatus of the motor for electric tool comprising:
Stator laminated core;
Multiple stator winding；
Contact site forming device, the contact site forming device include insulating body；
Contact site conductor, contact site conductor are set in the insulating body, and the contact site conductor is by least two stator winding
It is electrically connected to each other；
It is characterized in that, the contact jaw that contact site conductor has conductor main body and extends forward from conductor main body, the contact jaw
Including at least one Connection protrusion and at least one hook, Connection protrusion links together with hook contact.
Further, the insulating body has a front side, the rear side opposite with front side, and the contact site conductor is from described exhausted
It is assembled on rear side of edge ontology in the insulating body.
Further, be provided in the circumferential direction on rear side of the insulating body not through insulating body conductor conduit and
Through the accommodation groove of insulating body, when the contact site conductor (6) is assembled to the insulation originally on rear side of the insulating body
When body, the conductor main body of the contact site conductor is set in conductor conduit, and the Connection protrusion passes through the accommodation groove.
Further, the contact connection includes welding.
Further, the slot number of motor be 6 slots, use the number of parallel connection for 2 winding mode.
Further, Connection protrusion includes the first Connection protrusion and the second Connection protrusion.
Further, hook includes the first hook and the second hook, and the first hook has axial prolong relative to the second hook
Extending portion.
Further, the axially-extending portion and welding circuit board of the first hook.
Further, the conductor wire end of the winding of stator winding can be inserted into and/or clamp and/or be welded on the second hook
In the briar tooth of the first hook.
A kind of stator apparatus manufacturing method, the stator apparatus of the motor include stator laminated core and multiple stator winding,
It is characterized in that, the manufacturing method includes:
Insulating body is provided, the insulating body has front side, the rear side opposite with front side；
Contact site conductor is provided, the contact site conductor is assembled in the insulating body on rear side of the insulating body,
Wherein the contact site conductor is electrically connected to each other by least two stator winding.
A kind of motor has stator apparatus, and the rotor with the open interior that the stator apparatus is arranged in.
A kind of electric tool has stator apparatus, and the rotor with the open interior that the stator apparatus is arranged in.
The invention has the beneficial effects that it is not necessarily to extra insulation portion on contact site conductor setting contact site forming device,
Reduce number of parts；Furthermore using the contact site conductor with bending part, so that contact site forming device assembly area reduces,
Reduce the influence to motor radiating wind path；Split type Connection protrusion and hook are used simultaneously, so that the processing is simple, assembly side
It can lean on.
Detailed description of the invention
Fig. 1 is the exploded view of the front side of stator apparatus (stator winding is not shown)；
Fig. 2 is the exploded view of the rear side of stator apparatus (stator winding is not shown)；
Fig. 3 is contact site conductor schematic diagram；
Fig. 4 is the first hook and the second hook scheme of installation；
Fig. 5 is the first hook and circuit board scheme of installation；
Fig. 6 is motor cross-sectional view；
Fig. 7 is electric circular saw side view；
Fig. 8 is the rearview of contact site forming device；
Description of symbols:
1, stator apparatus；
2, stator laminated core；
3, stator tooth；
4, contact site forming device；
41, insulating body；
5, conductor conduit；
50, accommodation groove；
6, contact site conductor；
60, conductor main body；
60A, the first contact jaw；
60B, the second contact jaw；
61, the first middle section；
61A, the first Connection protrusion；
61B, first end；
62, the second middle section；
62A, the second Connection protrusion；
62B, second end；
62C, bending part；
7, insulating end plate；
8, tooth insulated part；
9, semi-circular teeth insulated part；
10A, the first hook；
10B, the second hook；
10C, extension；
10D, briar tooth.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
In fig. 1 and 2, stator apparatus 1 designs for the motor on electric tool, and the slot number of motor is 6 slots, using simultaneously
The winding mode that the number of connection is 2.Stator apparatus 1 has stator laminated core 2, which has multiple stator tooths
3.Stator laminated core is formed by multiple punched metal sheet parts electrically and mechanically connected, and wherein sheet metal includes silicon steel
Piece etc..The other configurations of stator, such as full wafer design are also feasible.The stator tooth of stator laminated core is multiple fixed for accommodating
Sub- winding, multiple stator winding are wound around stator tooth.
The contact site forming device 4 include insulating body 41, insulating body have front side and it is opposite with front side after
Side.In fig. 8, it is provided in the circumferential direction on rear side of insulating body not through the conductor conduit 5 of insulating body and through insulation originally
The accommodation groove 50 of body.Contact site forming device 4 is formed by plastics, is set to before stator laminated core.
In addition, insulating end plate 7 is mounted on after stator laminated core.Insulating end plate has tooth insulated part 8, tooth insulation
Part covers and the rear end part for the stator tooth that is electrically insulated, and stator winding is wound around the tooth insulated part.
Semi-circular teeth insulated part 9 is provided in contact site forming device.Semi-circular teeth insulated part is formed in stator tooth
First half, and the first half of electric insulation stator tooth.The tooth insulated part can be cooperated and force-fitting with shape
Mode is connected in the corresponding opening of stator laminated core.Due to the semi-circular design of tooth insulated part, winding can be simple
It is made.
It can be seen from Fig. 3 that contact site conductor is designed at least two stator winding are electrically connected to each other, contact site conductor
It can be stamped to form by sheet material, preferably copper.Contact site conductor is arranged before contact site forming device.Contact site conductor 6
With conductor main body 60 and the contact jaw extended forward from conductor main body, contact jaw 60A, 60B include at least one Connection protrusion
61A, 62A and at least one hook 10A, 10B,
Contact site conductor 6 is semicircle shape, also, contact site conductor can also be shaped as required form again.Contact site conductor 6 has
Have the first middle section 61 and the second middle section 62, they are connected to each other at bending part 63, bending part can radially-inwardly or
Outward bending, so that the first middle section and the second middle section have different diameters.Therefore, the first middle section and second
Middle section is by means of bending part radial deflection relative to each other.It is preferred that the diameter of the first middle section is less than the second middle part
The diameter divided.
Bending part is used to provide space for another contact site conductor.Due to the presence of bending part, multiple contact site conductors
Be arranged is possible in the planes.When contact site conductor is assembled to insulating body on rear side of insulating body, contact portion is led
The conductor main body of body is set in conductor conduit, and Connection protrusion passes through accommodation groove.Meanwhile the first middle section of contact site conductor
It is arranged on the circumference with first diameter, the second middle section of contact site conductor is arranged in the circumference with second diameter
On.Three contact site conductors overlap radially, so that connecing under the insufficient assembly area provided on front side of insulating body
Contact portion conductor obtains good insulation, prevents contact short circuit, simultaneously because assembling the reduction of area on front side of insulating body, reduces
Influence to the heat dissipation wind path of motor, furthermore accommodates contact site conductor without individual part.
First Connection protrusion 61A and the second Connection protrusion 62A extends along the front-rear direction of stator apparatus, and the second connection is convex
Portion has the bending part of radially-inwardly side compared to the first Connection protrusion, and bending part 62C makes the second Connection protrusion be located at first
On the circumference of diameter.
To be found out by Fig. 4 and Fig. 5, Connection protrusion 61A, 62A and hook 10A, 10B contact link together, and preferably first
Connection protrusion welds together with the first hook 10A, and the second Connection protrusion welds together with the second hook 10B, the first hook
The Connection protrusion radial outside briar tooth 10D outstanding from contact site conductor is all had with the second hook.The winding of stator winding
Conductor wire end can be inserted into and/or be clamped and/or be welded in the briar tooth 10D of the second hook and the first hook.In the present invention,
The contact jaw by Connection protrusion and hook split-type design, can provide so larger sized hook to stator winding around
Line, the coiling on stator winding are electrically connected or are in electrical contact with contact jaw well.
It can be seen from Fig. 5 that it is preferred that, the first hook also has forward extension 10C, therefore the first hook relative to the second hook
The length of son is greater than the length of the second hook, so that and the extension and power P CB circuit board 12 of the first hook directly weld,
The axial length for reducing motor reduces the size of electric tool.First hook having the same can also be tied with the second hook
Structure.
The present invention provides a kind of stator apparatus manufacturing method, and the stator apparatus of the motor includes stator laminated core and more
A stator winding, the manufacturing method include:
Insulating body is provided, the insulating body has front side, the rear side opposite with front side；
Contact site conductor is provided, the contact site conductor is assembled in the insulating body on rear side of the insulating body,
Wherein the contact site conductor is electrically connected to each other by least two stator winding.
It is provided in circumferential direction on rear side of insulating body not through the conductor conduit of insulating body and through insulating body
Accommodation groove, when the contact site conductor is assembled to the insulating body on rear side of the insulating body, the contact portion is led
The conductor main body of body is set in conductor conduit, and the Connection protrusion passes through the accommodation groove.
The contact jaw that contact site conductor has conductor main body and extends forward from conductor main body, contact jaw include at least one
A Connection protrusion and at least one hook, Connection protrusion weld together with hook.
It can be seen from Fig. 6 that a kind of motor, has stator apparatus, and with the open interior that the stator apparatus is arranged in
Rotor.
It can be seen from Fig. 7 that a kind of electric tool, has stator apparatus, and with the opening that the stator apparatus is arranged in
Internal rotor.It is preferred that electric tool is electric circular saw.
Claims (15)
1. a kind of stator apparatus of the motor for electric tool comprising:
Stator laminated core (2);
Multiple stator winding；
Contact site forming device (4), the contact site forming device (4) include insulating body (41)；
Contact site conductor (6), contact site conductor (6) are set in the insulating body, and the contact site conductor (6) is by least two
Stator winding is electrically connected to each other；
The contact jaw (60A, 60B) that contact site conductor (6) has conductor main body (60) and extends forward from conductor main body;It is described
Contact jaw includes at least one Connection protrusion (61A, 62A) and at least one hook (10A, 10B), which is characterized in that connection is convex
Portion (61A, 62A) links together with hook (10A, 10B) contact.
2. stator apparatus according to claim 1, which is characterized in that the insulating body has front side, opposite with front side
Rear side, the contact site conductor (6) is assembled in the insulating body on rear side of the insulating body.
3. stator apparatus according to claim 1, which is characterized in that be provided with not in the circumferential direction on rear side of the insulating body
Conductor conduit (5) through insulating body and the accommodation groove (50) through insulating body, when the contact site conductor (6) from
When being assembled to the insulating body on rear side of the insulating body, the conductor main body of the contact site conductor is set to conductor conduit
Interior, the Connection protrusion passes through the accommodation groove.
4. stator apparatus according to claim 2 or 3, which is characterized in that the contact connection includes welding.
5. stator apparatus according to claim 4, which is characterized in that the slot number of motor be 6 slots, use the number of parallel connection for
2 winding mode.
6. stator apparatus according to claim 5, which is characterized in that Connection protrusion (61A, 62A) includes that the first connection is convex
Portion (61A) and the second Connection protrusion (62A).
7. stator apparatus according to claim 6, which is characterized in that hook includes the first hook (10A) and the second hook
(10B), the first hook (10A) have axially-extending portion relative to the second hook (10B).
8. stator apparatus according to claim 7, which is characterized in that the axially-extending portion and circuit board (12) are welded.
9. stator apparatus according to claim 8, which is characterized in that the conductor wire end of the winding of stator winding can be inserted into
And/or it clamps and/or is welded in the briar tooth (10D) of the second hook (10B) and the first hook (10A).
10. a kind of stator apparatus manufacturing method as described in claim 1, the stator apparatus of the motor includes stator laminated core
(2) and multiple stator winding, which is characterized in that the manufacturing method includes:
Insulating body is provided, the insulating body has front side, the rear side opposite with front side；
Contact site conductor is provided, the contact site conductor (6) is assembled to the insulating body on rear side of the insulating body
Interior, wherein the contact site conductor (6) is electrically connected to each other by least two stator winding.
11. manufacturing method according to claim 10, which is characterized in that be provided in the circumferential direction on rear side of the insulating body
Through the conductor conduit of insulating body and accommodation groove through insulating body, when the contact site conductor (6) from it is described absolutely
When being assembled to the insulating body on rear side of edge ontology, the conductor main body of the contact site conductor is set in conductor conduit, institute
Connection protrusion is stated across the accommodation groove.
12. manufacturing method according to claim 11, which is characterized in that the contact jaw includes at least one Connection protrusion
(61A, 62A) and at least one hook (10A, 10B), Connection protrusion (61A, 62A) are connect with hook (10A, 10B) contact
Together.
13. manufacturing method according to claim 12, which is characterized in that the contact connection includes welding.
14. a kind of motor has stator apparatus as claimed in one of claims 1 to 9, and there is setting to fill in the stator
The rotor for the open interior set.
15. a kind of electric tool has stator apparatus as claimed in one of claims 1 to 9, and has and be arranged described fixed
The rotor of the open interior of sub-device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118558.XA CN109787392A (en) | 2017-11-14 | 2017-11-14 | A kind of electric tool and motor and stator apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118558.XA CN109787392A (en) | 2017-11-14 | 2017-11-14 | A kind of electric tool and motor and stator apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109787392A true CN109787392A (en) | 2019-05-21 |
Family
ID=66493980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711118558.XA Pending CN109787392A (en) | 2017-11-14 | 2017-11-14 | A kind of electric tool and motor and stator apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109787392A (en) |
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| CN1638232A (en) * | 2003-10-22 | 2005-07-13 | 西门子公司 | Stator for an electric motor |
| CN1820401A (en) * | 2003-06-20 | 2006-08-16 | 西门子公司 | Electric machine comprising a circuit support |
| CN104272563A (en) * | 2012-02-13 | 2015-01-07 | 博泽沃尔兹堡汽车零部件有限公司 | Stator arrangement and electric machine |
| CN104426274A (en) * | 2013-09-11 | 2015-03-18 | 株式会社牧田 | Power tool |
| CN104467299A (en) * | 2013-09-16 | 2015-03-25 | Lg伊诺特有限公司 | Bus bar and motor including the same |
| CN205725188U (en) * | 2016-04-22 | 2016-11-23 | 依必安派特穆尔芬根有限两合公司 | Stator |
| CN106716784A (en) * | 2015-02-26 | 2017-05-24 | 翰昂汽车零部件有限公司 | Motor stator assembly |
| CN107112845A (en) * | 2015-01-07 | 2017-08-29 | 罗伯特·博世有限公司 | Method for the stator of motor and for manufacturing this stator |
| CN107112846A (en) * | 2015-01-07 | 2017-08-29 | 罗伯特·博世有限公司 | Method for the connecting plate of the stator of motor and for manufacturing such connecting plate |
| CN208272745U (en) * | 2017-11-14 | 2018-12-21 | 南京德朔实业有限公司 | A kind of electric tool and motor and stator apparatus |
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2017
- 2017-11-14 CN CN201711118558.XA patent/CN109787392A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820401A (en) * | 2003-06-20 | 2006-08-16 | 西门子公司 | Electric machine comprising a circuit support |
| CN1638232A (en) * | 2003-10-22 | 2005-07-13 | 西门子公司 | Stator for an electric motor |
| CN104272563A (en) * | 2012-02-13 | 2015-01-07 | 博泽沃尔兹堡汽车零部件有限公司 | Stator arrangement and electric machine |
| US20150015100A1 (en) * | 2012-02-13 | 2015-01-15 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Stator Arrangement And Electric Machine |
| CN104426274A (en) * | 2013-09-11 | 2015-03-18 | 株式会社牧田 | Power tool |
| CN104467299A (en) * | 2013-09-16 | 2015-03-25 | Lg伊诺特有限公司 | Bus bar and motor including the same |
| CN107112845A (en) * | 2015-01-07 | 2017-08-29 | 罗伯特·博世有限公司 | Method for the stator of motor and for manufacturing this stator |
| CN107112846A (en) * | 2015-01-07 | 2017-08-29 | 罗伯特·博世有限公司 | Method for the connecting plate of the stator of motor and for manufacturing such connecting plate |
| CN106716784A (en) * | 2015-02-26 | 2017-05-24 | 翰昂汽车零部件有限公司 | Motor stator assembly |
| CN205725188U (en) * | 2016-04-22 | 2016-11-23 | 依必安派特穆尔芬根有限两合公司 | Stator |
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| CN208272745U (en) * | 2017-11-14 | 2018-12-21 | 南京德朔实业有限公司 | A kind of electric tool and motor and stator apparatus |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Applicant after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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