CN204928409U - Brushless motor and power tool - Google Patents
Brushless motor and power tool Download PDFInfo
- Publication number
- CN204928409U CN204928409U CN201520583330.8U CN201520583330U CN204928409U CN 204928409 U CN204928409 U CN 204928409U CN 201520583330 U CN201520583330 U CN 201520583330U CN 204928409 U CN204928409 U CN 204928409U
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- end plate
- stator
- electric machine
- stator core
- stator end
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Abstract
The utility model relates to a brushless motor, includes stator core, many piece stator winding s, three -phase lead -out wire, stator end plate and the line ball board of coiling on stator core, the three -phase lead -out wire is connected with many stator winding to draw forth along stator core, the stator end plate sets up in stator core's one end, and the stator end plate has towards stator core's other end direction sunkenly, and can supply the three -phase lead -out wire to follow the lead wire groove that stator core radially drew forth, line ball board installation stator end plate, line ball board are seted up and the lead wire corresponding distribution groove in groove to make the three -phase lead -out wire draw forth along the stator core axial with the aid of the distribution groove. Above -mentioned brushless motor sets up through stator end plate and the components of a whole that can function independently of line ball board to offer the lead wire groove on the stator end plate, offer the distribution groove on the line ball board, make three phase terminals can realize axial and radial drawing, reduced the size of motor, simple structure, low in manufacturing cost has improved brushless motor's universalization rate.
Description
Technical field
The utility model relates to power tool technical field, particularly relates to a kind of brushless electric machine and power tool.
Background technology
Along with the develop rapidly of electron controls technology, DC brushless motor is high with its efficiency, noise is low, the life-span is long, reliability high, obtains applying more and more widely, and have the trend of alternative brush motor at numerous areas.
Traditionally, DC brushless motor is all adopt line stator to draw by the mode of flexible conductor piercing welding after the complete line of enamelled wire or embedding complete line, and the wire after extraction is connected with controller again.But there is following shortcoming in the mode of this kind of stator lead-out wire: the outlet colligation will carrying out insulating wrapping and lead-out wire after welding and welding 1, between enamelled wire with extraction flexible conductor, the operating time is long, and efficiency is low, and causes motor size to increase, poor universality.2, welding difficulty, part manufacturing cost is high, and fixing unreliable, easily goes out security incident.
Utility model content
Based on this, be necessary for traditional brushless motor stator lead-out wire mode complex structure, cause motor size large, poor universality, and welding difficulty, part manufacturing cost high problem, there is provided one can axially and radial outlet simultaneously, fixing reliable, low cost of manufacture, the brushless electric machine that pervasive rate is high and power tool.
A kind of brushless electric machine, comprising:
Stator core;
Be wound on many stator winding on described stator core;
Three-phase lead-out wire, is connected with described many stator winding, and draws along described stator core;
Described brushless electric machine also comprises:
Stator end plate, is arranged at one end of described stator core, caves in the other end direction that described stator end plate has towards described stator core, and the wire lead slot can drawn along described stator core radial direction for described three-phase lead-out wire;
Tension disc, installs described stator end plate, and described tension disc offers the distribution trough corresponding with described wire lead slot, to make described three-phase lead-out wire can by means of described distribution trough along described stator core axial lead.
Above-mentioned brushless electric machine, arranged by stator end plate and tension disc split, and wire lead slot is offered on stator end plate, tension disc offers distribution trough, three phase terminals can be realized axially and radial extraction, and reduce the size of motor, structure is simple, low cost of manufacture, improves the general rate of brushless electric machine.
Wherein in an embodiment, described three-phase lead-out wire bonding is fixed on described stator end plate and described tension disc.
Wherein in an embodiment, described tension disc bonding is fixed on described stator end plate.
Wherein in an embodiment, described tension disc is provided with at least two reference columns towards the side of described stator end plate, described stator end plate correspondence offers at least two detents, and described reference column inserts described detent, so that described tension disc is positioned described stator end plate.
Wherein in an embodiment, described reference column bonding, slightly larger than the size of described reference column, is fixed in described detent there to be sufficient space filling adhesive by the size of described detent.
Wherein in an embodiment, described tension disc is also provided with limiting section towards the side of described stator end plate, described limiting section can be resisted against the side inwardly of described stator end plate, with spacing described stator end plate, prevents described stator end plate from moving radially along described stator core.
Wherein in an embodiment, described wire lead slot is U-lag, and described wire lead slot runs through the lateral wall of described stator end plate, and the degree of depth of described wire lead slot and the radial dimension of single described three-phase lead-out wire match.
Wherein in an embodiment, described distribution trough is offered along the radial direction of described stator core, and through described tension disc, to form the passage of one end open.
Wherein in an embodiment, described distribution trough comprises fixed part and the peristome through with described fixed part, and described fixed part inner wall shape and single described three-phase lead-out wire match, and the width of described peristome is less than the radial dimension of single described three-phase lead-out wire.
Wherein in an embodiment, described brushless electric machine also comprises cover plate, and described stator end plate is three, and described three stator end plates all offer installing hole, and described cover plate is threadedly connected to described stator end plate by described installing hole.
A kind of power tool, comprises above-mentioned brushless electric machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the brushless electric machine in this preferred embodiment;
Fig. 2 is the explosive view of the brushless electric machine shown in Fig. 1;
Fig. 3 is the structural representation of the tension disc of the brushless electric machine shown in Fig. 1.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figures 1 and 2, the three-phase lead-out wire 14 that brushless electric machine 10 in the utility model preferred embodiment comprises stator core 12, is wound in the multiple stator winding (not shown) on stator core 12 and draws along stator core 12, this brushless electric machine 10 also comprises stator end plate 16 and is installed on the tension disc 18 of stator end plate 16.
Particularly, stator is tubular, its inner circumferential side is across the rotor (not shown) of the gap configuration of regulation, the many stator winding that stator comprises stator core 12 cylindrically and is wound on this stator core 12, axially through and multiple groove (not shown) of circumferential array are formed at stator core 12, each stator winding is configured in the multiple conductor electrical connection in each groove by storage and forms, and extension vertically leads to three-phase lead-out wire 14 in groove.Stator end plate 16 is arranged at one end of stator core 12, and this stator end plate 16 has towards this stator core 12 other end direction depression, and the wire lead slot 162 can drawn along stator core 12 radial direction for this three-phase lead-out wire 14.Tension disc 18 is installed on stator end plate 16, and this tension disc 18 offers the distribution trough 182 corresponding with wire lead slot 162, to make this three-phase lead-out wire 14 can by means of this distribution trough 182 along stator core 12 axial lead.
See also Fig. 3, in the present embodiment, this three-phase lead-out wire 14 bonding is fixed on stator end plate 16 and tension disc 18, and this tension disc 18 bonding is fixed on stator end plate 16.Particularly, this tension disc 18 is provided with at least two reference columns 184 towards the side of stator end plate 16, this stator end plate 16 correspondence offers at least two detents 164, and this reference column 184 inserts this detent 164, to be positioned in stator end plate 16 by this tension disc 18.Wherein, the size of this detent 164, slightly larger than the size of reference column 184, there to be sufficient space filling adhesive reference column 184 bonding to be fixed in this detent 164, thus to realize the location of tension disc 18 and fixes.After tension disc 18 and stator end plate 16 are fixing, can draw in wire lead slot 162 radial direction along the axially extended three-phase lead-out wire 14 of stator core 12, or at distribution trough 182 axial lead.Specific in embodiment as shown in Figure 1, three-phase lead-out wire 14 is from distribution trough 182 along stator core 12 axial lead, because wire lead slot 162 and distribution trough 182 correspondence are offered, by point gum machine 20 glue fillings in the position of arrow indication as shown in Figure 1, thus realize the fixing of three-phase lead-out wire 14.Compare the fixed form of traditional brushless electric machine 10 lead-out wire, this kind of mode structure be simple, low cost of manufacture, fixing reliable, and greatly reduce the size of motor, add the versatility of motor.
Preferably, as shown in Figure 1 or 2, this wire lead slot 162 is U-lag, and the radial dimension of its degree of depth and single three-phase lead-out wire 14 matches, and three-phase lead-out wire 14 can be embedded at wherein, and is fixed by some glue, fixing reliable.This distribution trough 182 is offered along stator core 12 radial direction, and this tension disc 18 through, to form the passage of one end open, particularly, as shown in Figure 3, this distribution trough 182 comprises fixed part 1822 and the peristome 1824 through with fixed part 1822, and this fixed part 1822 inner wall shape and single three-phase lead-out wire 14 match, and the width of this peristome 1824 is less than the radial dimension of fixed part 1822.More clearly say, this three-phase lead-out wire 14 cross section is circular, the then rounded or similar circle of the shape of fixed part 1822, thus single three-phase lead-out wire 14 Absorbable organic halogens is fixed, the width of peristome 1824 is less than the size of single three-phase lead-out wire 14, thus three-phase lead-out wire 14 cannot be departed from from distribution trough 182, increase the fixing reliability of three-phase lead-out wire further.
Further, as shown in Figure 3, this tension disc 18 is also provided with limiting section 186 towards the side of stator end plate 16, and this limiting section 186 can be resisted against the side inwardly of this stator end plate 16, with this stator end plate 16 spacing, prevent stator end plate 16 from moving radially along stator core 12.Particularly, this limiting section 186 is spacing preiection, is two, is arranged at respectively between adjacent distribution trough 182, should be understood that, this limiting section 186 only can play strengthens the fixing effect of tension disc 18, can not interfere the extraction of three-phase lead-out wire 14.
Please again consult Fig. 1 and Fig. 2, in the present embodiment, this brushless electric machine 10 also comprises cover plate (not shown), this stator end plate 16 is three, three stator end plates 16 all offer installing hole 166, and this cover plate is threadedly connected to this locating end plate by this installing hole 166, thus realizes encapsulation.Specific in embodiment as shown in Figure 2, this installing hole 166 is positioned at the position of stator end plate 16 near its both ends, and the size of this tension disc 18 is less than the size of stator end plate 16, thus this installing hole 166 is exposed, and is convenient to the fixing of cover plate.
Above-mentioned brushless electric machine 10, arranged by stator end plate 16 and tension disc 18 split, and wire lead slot 162 is offered on stator end plate 16, tension disc 18 is offered distribution trough 182, three phase terminals can be realized axially and radial extraction, and fixed by some glue, fixed form is firm, and reduce the size of motor, structure is simple, low cost of manufacture, improves the general rate of brushless electric machine 10.
Based on above-mentioned brushless electric machine, the utility model additionally provides a kind of power tool comprising above-mentioned brushless electric machine.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (11)
1. a brushless electric machine, comprising:
Stator core;
Be wound on many stator winding on described stator core;
Three-phase lead-out wire, is connected with described many stator winding, and draws along described stator core;
It is characterized in that, described brushless electric machine also comprises:
Stator end plate, is arranged at one end of described stator core, caves in the other end direction that described stator end plate has towards described stator core, and the wire lead slot can drawn along described stator core radial direction for described three-phase lead-out wire;
Tension disc, is installed on described stator end plate, and described tension disc offers the distribution trough corresponding with described wire lead slot, to make described three-phase lead-out wire can by means of described distribution trough along described stator core axial lead.
2. brushless electric machine according to claim 1, is characterized in that, described three-phase lead-out wire bonding is fixed on described stator end plate and described tension disc.
3. brushless electric machine according to claim 1, is characterized in that, described tension disc bonding is fixed on described stator end plate.
4. brushless electric machine according to claim 3, it is characterized in that, described tension disc is provided with at least two reference columns towards the side of described stator end plate, described stator end plate correspondence offers at least two detents, described reference column inserts described detent, so that described tension disc is positioned described stator end plate.
5. brushless electric machine according to claim 4, is characterized in that, described reference column bonding, slightly larger than the size of described reference column, is fixed in described detent there to be sufficient space filling adhesive by the size of described detent.
6. brushless electric machine according to claim 3, it is characterized in that, described tension disc is also provided with limiting section towards the side of described stator end plate, described limiting section can be resisted against the side inwardly of described stator end plate, with spacing described stator end plate, prevent described stator end plate from moving radially along described stator core.
7. brushless electric machine according to claim 1, is characterized in that, described wire lead slot is U-lag, and described wire lead slot runs through the lateral wall of described stator end plate, and the degree of depth of described wire lead slot and the radial dimension of single described three-phase lead-out wire match.
8. brushless electric machine according to claim 1, is characterized in that, described distribution trough is offered along the radial direction of described stator core, and through described tension disc, to form the passage of one end open.
9. brushless electric machine according to claim 8, it is characterized in that, described distribution trough comprises fixed part and the peristome through with described fixed part, described fixed part inner wall shape and single described three-phase lead-out wire match, and the width of described peristome is less than the radial dimension of single described three-phase lead-out wire.
10. brushless electric machine according to claim 1, it is characterized in that, described brushless electric machine also comprises cover plate, and described stator end plate is three, described three stator end plates all offer installing hole, and described cover plate is threadedly connected to described stator end plate by described installing hole.
11. 1 kinds of power tools, is characterized in that, comprise the brushless electric machine as described in claim 1 ~ 10 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583330.8U CN204928409U (en) | 2015-08-05 | 2015-08-05 | Brushless motor and power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583330.8U CN204928409U (en) | 2015-08-05 | 2015-08-05 | Brushless motor and power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928409U true CN204928409U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520583330.8U Expired - Fee Related CN204928409U (en) | 2015-08-05 | 2015-08-05 | Brushless motor and power tool |
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| Country | Link |
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| CN (1) | CN204928409U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258856A (en) * | 2016-12-28 | 2018-07-06 | 日本电产株式会社 | Lead-out wire positioning device, the manufacturing method of stator, the manufacturing method of motor and motor |
| CN109639011A (en) * | 2018-11-26 | 2019-04-16 | 成都富临精工电子电器科技有限公司 | A kind of non-brush permanent-magnet DC motor skeleton structure |
| CN110307773A (en) * | 2019-08-21 | 2019-10-08 | 中车株洲电机有限公司 | A kind of band set group stator core three-phase lead-out wire measurement and positioning device and method |
| CN111083893A (en) * | 2019-12-25 | 2020-04-28 | 江苏奕隆机电科技有限公司 | ECU (electronic control Unit) shell assembly structure and method for assembling ECU shell and coil |
| CN111917216A (en) * | 2019-05-09 | 2020-11-10 | 本田技研工业株式会社 | Rotating electric machine unit |
-
2015
- 2015-08-05 CN CN201520583330.8U patent/CN204928409U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258856A (en) * | 2016-12-28 | 2018-07-06 | 日本电产株式会社 | Lead-out wire positioning device, the manufacturing method of stator, the manufacturing method of motor and motor |
| CN109639011A (en) * | 2018-11-26 | 2019-04-16 | 成都富临精工电子电器科技有限公司 | A kind of non-brush permanent-magnet DC motor skeleton structure |
| CN109639011B (en) * | 2018-11-26 | 2024-04-02 | 四川芯智热控技术有限公司 | Permanent magnet direct current brushless motor skeleton texture |
| CN111917216A (en) * | 2019-05-09 | 2020-11-10 | 本田技研工业株式会社 | Rotating electric machine unit |
| CN111917216B (en) * | 2019-05-09 | 2023-05-30 | 本田技研工业株式会社 | Rotary electric machine unit |
| CN110307773A (en) * | 2019-08-21 | 2019-10-08 | 中车株洲电机有限公司 | A kind of band set group stator core three-phase lead-out wire measurement and positioning device and method |
| CN111083893A (en) * | 2019-12-25 | 2020-04-28 | 江苏奕隆机电科技有限公司 | ECU (electronic control Unit) shell assembly structure and method for assembling ECU shell and coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200805 |