CN206575251U - The rotor and brushless electric machine of brushless electric machine - Google Patents
The rotor and brushless electric machine of brushless electric machine Download PDFInfo
- Publication number
- CN206575251U CN206575251U CN201720314244.6U CN201720314244U CN206575251U CN 206575251 U CN206575251 U CN 206575251U CN 201720314244 U CN201720314244 U CN 201720314244U CN 206575251 U CN206575251 U CN 206575251U
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- punching
- rotor
- rotor core
- electric machine
- brushless electric
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model is related to a kind of rotor of brushless electric machine, including rotor core (100) and armature spindle, and it is internal that the armature spindle is arranged on the rotor core (100).The rotor core (100) includes at least one first punching (1), first punching (1) includes two or more punching sections (11) along the circumferentially-spaced distribution of rotor core (100), the gap portion (12) for being used for installing magnet is provided between adjacent punching section (11), the gap portion (12) is configured to the through hole for radially penetrating the rotor core (100) in rotor core (100), and the rotor core (100) also includes at least one attachment means (2) along its circumferentially extending.It is stable that the rotor for the brushless electric machine that the utility model is provided has the advantages that inner magnet path loss consumes small, mechanical structure.The utility model further relates to a kind of brushless electric machine including foregoing rotor.
Description
Technical field
The utility model is related to machine field, specifically, is related to the rotor and brushless electric machine of a kind of brushless electric machine.
Background technology
In brushless electric machine field, there are a kind of rotor design, referred to as built-in permanent magnet, it is actually that magnet is arranged on
The inside of rotor structure, this structure can not only reduce the diameter of rotor, it is often more important that have magnet accumulating cap, add air gap
Magnetic flux density, is conducive to the weak magnetic of motor to control.
The rotor design of existing built-in permanent magnet, with following problem：1) the inside magnetic circuit of interior permanent magnets, which has, damages
Consumption so that effective magnet torque and reluctance torque can become considerably less, and performance is decreased obviously；2) install after built-in permanent magnet,
In the case where rotor rotates at a high speed, due to the effect of centrifugal force, it may appear that the unstable situation of the mechanical mechanism of rotor.
Utility model content
The purpose of this utility model is the rotor design for providing a kind of brushless electric machine and the nothing comprising the rotor design
Brush motor, the inner magnet path loss having to solve the brushless electric machine and its rotor of foregoing built-in permanent magnet consumes excessive and machinery
At least one of structural instability problem.
Therefore, basic conception of the present utility model is to provide a kind of following rotor core design, before injection, turn
At least a portion core body of sub- iron core is diametrically constructed to insertion；Rotor core is additionally provided with attachment means, with significantly
The invalid inner magnet path loss of reduction can strengthen mechanical performance while consumption.
According to the utility model first aspect there is provided a kind of rotor of brushless electric machine, including：Rotor core and armature spindle,
The armature spindle is arranged on inside the rotor core；Wherein, the rotor core includes at least one first punching, described first
Punching includes being provided between two or more punching sections along the circumferentially-spaced distribution of rotor core, adjacent punching section
Gap portion for installing magnet, the gap portion is configured to radially penetrate the logical of the rotor core in rotor core
Hole, and the rotor core also includes at least one attachment means along its circumferentially extending.
Alternatively, the attachment means can be the connector being separately provided.Preferably, the connector can by silicon steel or
Stainless steel material is made.
Additionally or alternatively, the attachment means may include the second punching, week of second punching along rotor core
To continuously extending.
Advantageously, the attachment means can be arranged in the axial end portion of rotor core.
Preferably, the rotor core can also include the 3rd punching, wherein, the first punching and the 3rd punching have difference
Internal bridge architectural feature, the first punching sheet unit being made up of at least one first punching at least one the 3rd punching with being made up of
Second punching sheet unit can alternately and with being superimposed be arranged along the axial direction of rotor core.
Preferably, each first punching sheet unit is made up of two the first punchings, and each second punching sheet unit is by two second
Punching is constituted.
Preferably, the first punching can have at least one along the circumferentially-spaced distribution of rotor core, the internal bridge of arc
Structure.It is highly preferred that the internal bridge structure of multiple arcs is uniformly distributed along the circumference of rotor core.
Preferably, the 3rd punching can not have internal bridge structure.Or, the 3rd punching, which can also have, is different from second
The internal bridge structure of punching.
Rotor core can also include at least one magnet mounting hole, and the magnet mounting hole prolongs along the axial direction of rotor core
Stretch, at least one magnet is installed in corresponding magnet mounting hole and fixed by Shooting Technique.
Preferably, using engineering plastics or plastic cement and solidify it in the Shooting Technique.
According to second aspect of the present utility model there is provided a kind of brushless electric machine, it may include stator, end cap, spring bearing
And electrical connector, wherein, the brushless electric machine may also include foregoing rotor.
Compared with prior art, the rotor for the brushless electric machine that the utility model is provided and the motor comprising the rotor have interior
Portion's magnetic circuit loss is small, the advantage that mechanical structure is stable, and can further enhancing rotor, mechanical structure can in high-speed rotation
By property, additionally it is possible to substantially reduce the in-fighting of magnetic flux, so as to greatly improve motor performance and reduce cost.
Brief description of the drawings
Describe preferred embodiment of the present utility model in detail with reference to the accompanying drawings, wherein：
Fig. 1 is the schematic isometric of the rotor core of the brushless electric motor rotor according to one preferred embodiment of the utility model
Figure；
Fig. 2 a and Fig. 2 b are according to the schematic of the first punching of the utility model preferred embodiment and the 3rd punching respectively
Stereogram；
Fig. 3 is the schematic perspective view after rotor core shown in Fig. 1 is inverted；And
Fig. 4 is the schematic perspective view for the component that rotor core shown in Fig. 1 is constituted with magnet.
Embodiment
Describe below with reference to accompanying drawings and by preferred embodiment brushless electric machine described in the utility model rotor and
Brushless electric machine comprising the rotor.
The rotor of typical brushless electric machine may include tubular rotor core and armature spindle (not shown), and armature spindle
Inside rotor core, specifically in the central shaft hole of rotor core, to allow rotor core to drive
Armature spindle is rotated together.The material of rotor core is preferably silicon steel.
Fig. 1 and Fig. 3 show the rotor core 100 according to one preferred embodiment of the utility model, the rotor core 100
It may include at least one first punching 1 (referring to Fig. 2 a).
As shown in Figure 2 a, the first punching 1 may include two or more punchings along the circumferentially-spaced distribution of rotor core 100
Piece section 11.The gap portion 12 for being used for installing magnet can be provided between adjacent punching section 11, gap portion 12 can be constructed
The through hole for radially penetrating the rotor core 100 as rotor core 100.
Therefore, at least a portion of rotor core, the periphery of preferably most of core body are discontinuous, but are spaced apart
Some sections, its axially extending and insertion in the radial direction thereof magnet is thus formed in parallel with rotor core and is installed
Hole, thus be possible to greatly reduce invalid inside magnetic circuit consumption, so as to significantly improve motor performance and reduce cost.
As shown in figure 3, rotor core 100 may also include at least one attachment means 2 along its circumferentially extending.Alternatively,
The attachment means 2 can be the connector being separately provided.The connector is preferably made up of silicon steel or stainless steel material.Certainly, originally
Art personnel are it is contemplated that connector can also be made up of other materials, as long as the connector formed by the material is suitable to
Play connection function.
Additionally or alternatively, attachment means 2 may include the second punching 3 (referring to Fig. 3), and the second punching 3 is along rotor core
100 circumferentially continuously extend.It will be understood by those skilled in the art that the quantity of the second punching 3 can be according to single punching
Thickness and in view of rotor electromagnetic performance and mechanical performance balance depending on.For example, attachment means 2 may include one, two
Individual, three or more second punchings 3.
Preferably, attachment means 2 are arranged in the axial end portion of rotor core 100.It will be understood by those skilled in the art that
Can on any one of two axial end portions of rotor core 100 or both on be respectively provided with attachment means 2.
In order to further enhance the mechanical structure stability of rotor, rotor core may also include the 3rd punching 4, such as Fig. 2 b institutes
Show.Therefore, the first punching sheet unit can be made up of at least one the first punching 1, and second is constituted by least one the 3rd punching 4
Punching sheet unit, the first punching sheet unit can replace along the axial direction of rotor core 100 with the second punching sheet unit and arrange with being superimposed.First
The punching 4 of punching 1 and the 3rd can have different internal bridge architectural features.
For example, as shown in Fig. 1 and Fig. 2 a, the first punching 1 can have at least one circumferentially-spaced point along rotor core 100
Cloth, arc internal bridge structure 13.In contrast to this, the 3rd punching 4 can not have internal bridge structure (referring to Fig. 1).
Or, it may also be envisaged that：3rd punching 4 can have other internal bridge structure, and the other internal bridge structure can be in example
Such as along punching radial direction positioning and/or bridge structure shape and/or be different from along in terms of the quantity of punching circumferentially
The internal bridge structure 13 of first punching 1.
Those skilled in the art are it is also understood that the punching quantity in each first and second punching sheet unit can basis
Depending on the thickness of single punching and electromagnetic performance and the balance of mechanical performance in view of rotor, for example, it can be one, two
It is individual, three or more.Preferably, each first punching sheet unit is made up of two the first punchings 1, each second punching sheet unit
It is made up of two the 3rd punchings 4.That is, in the axial direction of rotor core 100 continuous two the first punchings 1 with continuous two
3rd punching 4 is alternately arranged.
It is connected to each other between each punching 1 and/or 4 by riveting point 14 and 44 (referring to Fig. 2 a and Fig. 2 b).
Preferably, as shown in Fig. 1 and Fig. 2 a, the internal bridge structure 13 of multiple arcs can be along the circumferential equal of rotor core 100
Even distribution.
Typically, referring to Fig. 1 and Fig. 3, rotor core 100 may include at least one magnet mounting hole 5, and the magnet is installed
Hole 5 is axially extending along rotor core 100.Magnet mounting hole 5 can be the elongated hole with approximate rectangular cross section, and
The longitudinal asymmetric axis of its approximate rectangular cross section is located substantially on rotor core 100 in the radial direction.It is preferably provided with
Multiple magnet mounting holes 5, the multiple magnet mounting hole 5 is preferably along the circumferential uniform of rotor core 100.
Referring to Fig. 3 and Fig. 4, at least one magnet 200 is mountable in corresponding magnet mounting hole 5 and by Shooting Technique
It is fixed.As shown in figure 4, rotor core 100 may also include fluting punching 6 in order to follow-up injection process.In the injection work
Engineering plastics or plastic cement are preferably used in skill and solidifies it.So as to utilize the embedding of injection molding encapsulation thing by rotor core 100 and magnetic
The component 400 of the composition of body 200 simultaneously forms rotor assembly.The effect of solidfied material is：Invalid inside magnetic circuit can not only be reduced
Consumption, and enhance mechanical structure reliability of the rotor in high-speed rotation.
After Shooting Technique, the different internal bridge architectural features that the first punching 1 and the 3rd punching 4 have can draw
Play the power on different directions, so as to be conducive to the fixation of internal rotor each several part.Thus, it is possible to further enhance rotor
The mechanical structure reliability in high-speed rotation.
Magnet 200 is preferably permanent magnet, and its shape matches with magnet mounting hole 5.This magnet 200 is in rotor core
The built-in design of radial direction in 100, can provide additional reluctance torque, while realizing weak magnetic control for rotor.
In addition, according to one preferred embodiment of the utility model, brushless electric machine may include stator, end cap, spring bearing and
Electrical connector, and also include according to foregoing rotor.
Industrial applicibility
Compared with prior art, the rotor for the brushless electric machine that the utility model is provided and the motor comprising the rotor have interior
Portion's magnetic circuit loss is small, the advantage that mechanical structure is stable.Specifically, designed according to rotor core of the present utility model, in injection
Before, at least a portion core body of rotor core is diametrically constructed to insertion, thus be possible to greatly reduce it is invalid
Internal magnetic circuit consumption, so as to significantly improve motor performance and reduce cost.Each punching that rotor core is included mainly passes through
Riveting point is connected with each other, and rotor core is additionally provided with attachment means, so that invalid inner magnet path loss consumption is being greatly reduced
Mechanical performance can be strengthened simultaneously.The attachment means are preferably placed at axial end portion, so as to form the radial direction in rotor core
Upper insertion and the magnet mounting hole extended almost along its whole axial length, therefore inner magnet path loss is reduced to greatest extent
Consumption.Because rotor core there can be different internal bridge architectural features, therefore insert in rotor core magnet and in gap
Pour into after molten plastic or plastic cement, the encapsulated layer of formation can be because embedded and alternatively distributed different internal bridge architectural features be in phase
Cause pulling force effect in the reverse direction and be firmly fixed, the work that the reinforcing bar that its principle is similar in reinforced concrete structure rises
With.So as to substantially increase the ability of rotor centrifugal force resistant at high speeds, while enhancing the mechanical strength of rotor, therefore enter one
Step improves the mechanical performance under high speed conditions.
Although the utility model is disclosed as above with preferred embodiment, the utility model is not limited to this.Any
Art personnel, are not departing from the various combinations made in spirit and scope of the present utility model, change and modification, all should receive
Enter in protection domain of the present utility model, thus protection domain of the present utility model should using claim limited range as
It is accurate.
Claims (14)
1. a kind of rotor of brushless electric machine, including：
Rotor core (100)；With
Armature spindle, the armature spindle is arranged on inside the rotor core；
Characterized in that,
The rotor core (100) includes at least one first punching (1), and first punching (1) is included along rotor core
(100) being provided between two or more punching sections (11) of circumferentially-spaced distribution, adjacent punching section (11) is used for
The gap portion (12) of magnet is installed, the gap portion (12) is configured to radially penetrate this turn in rotor core (100)
The through hole of sub- iron core (100), and
The rotor core (100) also includes at least one attachment means (2) along its circumferentially extending.
2. the rotor of brushless electric machine according to claim 1, it is characterised in that the attachment means (2) are to be separately provided
Connector.
3. the rotor of brushless electric machine according to claim 2, it is characterised in that the connector is by silicon steel or stainless steel
Material is made.
4. the rotor of brushless electric machine according to claim 1, it is characterised in that the attachment means (2) include the second punching
Piece (3), second punching (3) extends along the circumferentially continuous of rotor core (100).
5. the rotor of brushless electric machine according to any one of claim 1 to 4, it is characterised in that the attachment means (2)
It is arranged in the axial end portion of rotor core (100).
6. the rotor of brushless electric machine according to any one of claim 1 to 4, it is characterised in that the rotor core is also
Including the 3rd punching (4), wherein, the first punching (1) and the 3rd punching (4) have different internal bridge architectural features, by least
First punching sheet unit of one the first punching (1) composition turns with constituting the second punching sheet unit edge by least one the 3rd punching (4)
The axial direction of sub- iron core (100) is alternately and superposition ground is arranged.
7. the rotor of brushless electric machine according to claim 6, it is characterised in that each first punching sheet unit is by two first
Punching (1) is constituted, and each second punching sheet unit is made up of two the 3rd punchings (4).
8. the rotor of brushless electric machine according to claim 6, it is characterised in that the first punching (1) has at least one edge
Circumferentially-spaced distribution, arc the internal bridge structure (13) of rotor core (100).
9. the rotor of brushless electric machine according to claim 8, it is characterised in that the 3rd punching (4) does not have internal bridge knot
Structure, or the 3rd punching (4) have the internal bridge structure different from the first punching (1).
10. the rotor of brushless electric machine according to claim 8, it is characterised in that the internal bridge structure of multiple arcs
(13) it is uniformly distributed along the circumference of rotor core (100).
11. the rotor of brushless electric machine according to claim 5, it is characterised in that the rotor core (100) also includes opening
Groove punching (6), the fluting punching (6) is oppositely arranged at another axial end of rotor core (100) with attachment means (2)
Portion.
12. the rotor of brushless electric machine according to any one of claim 1 to 4, it is characterised in that the rotor core
(100) also include at least one magnet mounting hole (5), the magnet mounting hole (5) along the axially extending of rotor core (100),
At least one magnet (200) is installed in corresponding magnet mounting hole (5) and fixed by Shooting Technique.
13. the rotor of brushless electric machine according to claim 12, it is characterised in that engineering is used in the Shooting Technique
Plastics or plastic cement simultaneously solidify it.
14. a kind of brushless electric machine, including stator, end cap, spring bearing and electrical connector, it is characterised in that the brushless electricity
Machine also includes the rotor according to any one of claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314244.6U CN206575251U (en) | 2017-03-29 | 2017-03-29 | The rotor and brushless electric machine of brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314244.6U CN206575251U (en) | 2017-03-29 | 2017-03-29 | The rotor and brushless electric machine of brushless electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206575251U true CN206575251U (en) | 2017-10-20 |
Family
ID=60053886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720314244.6U Active CN206575251U (en) | 2017-03-29 | 2017-03-29 | The rotor and brushless electric machine of brushless electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206575251U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667171A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor |
| CN110429729A (en) * | 2019-08-26 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor assembly and preparation method thereof, magneto |
| DE102020121976A1 (en) | 2020-08-21 | 2022-02-24 | Schunk Electronic Solutions Gmbh | Rotor for an electric internal or external rotor motor, system of several rotors and electric internal or external rotor motor |
-
2017
- 2017-03-29 CN CN201720314244.6U patent/CN206575251U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667171A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor |
| CN110429729A (en) * | 2019-08-26 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor assembly and preparation method thereof, magneto |
| CN110429729B (en) * | 2019-08-26 | 2021-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor assembly, manufacturing method thereof and permanent magnet motor |
| DE102020121976A1 (en) | 2020-08-21 | 2022-02-24 | Schunk Electronic Solutions Gmbh | Rotor for an electric internal or external rotor motor, system of several rotors and electric internal or external rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee after: WeiPai automotive electronics (Wuhu) Co., Ltd Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee before: Continental automotive electronics (Wuhu) Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |