CN209692449U - A kind of rotor assembly and its motor of application - Google Patents
A kind of rotor assembly and its motor of application Download PDFInfo
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- CN209692449U CN209692449U CN201920682457.3U CN201920682457U CN209692449U CN 209692449 U CN209692449 U CN 209692449U CN 201920682457 U CN201920682457 U CN 201920682457U CN 209692449 U CN209692449 U CN 209692449U
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Abstract
The utility model discloses a kind of rotor assembly and its motors of application, including several permanent magnets, several magnetic inductive blocks, shaft, plastic-sealed body and reaction magnetic ring, several permanent magnets and several magnetic inductive blocks surround ring-shaped magnetic component, the top of ring-shaped magnetic component is arranged in reaction magnetic ring, plastic-sealed body is by shaft, permanent magnet, magnetic inductive block and reaction magnetic ring plastic packaging are integral, its described plastic-sealed body includes the newel for connecting cyclic annular magnet assembly and shaft, positioned at the upper head plate connected at the top of cyclic annular magnet assembly, and connect the bottom plate of cyclic annular magnet assembly bottom, upper head plate is equipped with groove, reaction magnetic ring is inlaid in groove, there is certain axial distance between the bottom surface of reaction magnetic ring and the first top surface of ring-shaped magnetic component, it is separated between the bottom surface of reaction magnetic ring and the first top surface of ring-shaped magnetic component by plastic-sealed body.Rotor component construction is simply small in size, and reaction magnetic ring is inlaid in groove the height for reducing rotor assembly, guarantees that upper head plate is reliable in conjunction with reaction magnetic ring and ring-shaped magnetic component.
Description
Technical field
The utility model relates to a kind of rotor assembly and its motors of application.
Background technique
Existing embedded rotor structure includes permanent magnet, rotor core and shaft, is formed between adjacent two magnetic inductive block
Radial groove, permanent magnet are embedded in radial groove, in order to guarantee the validity of hall sensing, need to increase permanent magnet height, this
Sample is more wasteful in cost；Thus mostly individually increase an induction magnetic shoe in the side of permanent magnet and rotor core, then passes through
Direct injection molding manner is integral by magnetic inductive block, permanent magnet, shaft and the direct plastic packaging of reaction magnetic ring.But it is independent in conjunction with rotor itself
The characteristics of piecemeal, molding difficulty is integrally bigger, and scrappage is high, needs to optimize rotor structure, needs to consider mould
Has the burr burr situation of the positioning accuracy and associated contact position of clamping and sizing material flowing and magnet ring.
Utility model content
The utility model provides the motor of a kind of rotor assembly and its application, to solve in the prior art rotor assembly at
The technical problem that type difficulty is integrally bigger, scrappage is high.
The technical solution of the utility model is achieved in that
First purpose of the utility model is to provide a kind of rotor assembly, including several permanent magnets, several magnetic inductive blocks, turns
Axis, plastic-sealed body and reaction magnetic ring form radial groove between adjacent two magnetic inductive block, and permanent magnet is nested in inside radial groove, if
Dry permanent magnet and several magnetic inductive blocks surround ring-shaped magnetic component, and the top of ring-shaped magnetic component is arranged in reaction magnetic ring, and shaft is set
It sets at ring-shaped magnetic component center, plastic-sealed body is integral by shaft, permanent magnet, magnetic inductive block and reaction magnetic ring plastic packaging, and feature exists
In: the plastic-sealed body include the newel for connecting cyclic annular magnet assembly and shaft, it is upper at the top of cyclic annular magnet assembly positioned at connecting
End plate and the bottom plate for connecting cyclic annular magnet assembly bottom, upper head plate are equipped with groove, and the reaction magnetic ring is inlaid in groove
It is interior, there are certain axial distance, the bottom surface of reaction magnetic ring between the bottom surface of reaction magnetic ring and the first top surface of ring-shaped magnetic component
It is separated between the first top surface of ring-shaped magnetic component by plastic-sealed body.
The medial surface of reaction magnetic ring described above is protruding with several positioning protrusion, and the positioning protrusion of part protrudes from plastic-sealed body
Outside.
The lateral surface of reaction magnetic ring described above is protruding with several fixing lug boss, and fixing lug boss is correspondingly arranged with permanent magnet,
Fixing lug boss is located in plastic-sealed body.
Protruding upward at the top of upper head plate described above to have annular convex platform, annular convex platform connects the lateral surface of reaction magnetic ring,
Part reaction magnetic ring is axially projecting in outside annular convex platform.
The axial distance R2 of the third top surface of the second top surface and annular convex platform of above-mentioned reaction magnetic ring meets: R2 > 1mm.
Axial distance R1 between the bottom surface of the reaction magnetic ring and the first top surface of ring-shaped magnetic component meets: R1 >
1mm。
Axial distance R1 between the bottom surface of the reaction magnetic ring and the first top surface of ring-shaped magnetic component meets: 1mm
< R1 < 10mm.
Magnetic inductive block described above is equipped with location hole, and upper head plate is equipped with corresponding with location hole several first and keeps away a hole, lower end
Plate is equipped with corresponding with location hole several second and keeps away a hole.
Magnetic inductive block described above, which is set, axially penetrates through hole, and the plastic-sealed body further includes the connecting column being filled in through hole, even
It connects column one end to connect with upper head plate, the connecting column other end is connect with bottom plate.
Second purpose of the utility model is to provide a kind of motor, including stator module, rotor assembly and casing, special
Sign is: the rotor assembly is rotor assembly described above.
The utility model compared with prior art, has the advantage that
1, rotor assembly includes several permanent magnets, several magnetic inductive blocks, shaft, plastic-sealed body and reaction magnetic ring, adjacent two magnetic conduction
Radial groove is formed between block, permanent magnet is nested in inside radial groove, and several permanent magnets and several magnetic inductive blocks surround cyclic annular magnetic
Property component, reaction magnetic ring is arranged in the top of ring-shaped magnetic component, and shaft setting will turn in ring-shaped magnetic component center, plastic-sealed body
Axis, permanent magnet, magnetic inductive block and reaction magnetic ring plastic packaging are integral, and the plastic-sealed body includes connecting in cyclic annular magnet assembly and shaft
Stem, the upper head plate at the top of the cyclic annular magnet assembly of connection and the bottom plate for connecting cyclic annular magnet assembly bottom, upper head plate
Be equipped with groove, the reaction magnetic ring is inlaid in groove, the first top surface of the bottom surface of reaction magnetic ring and ring-shaped magnetic component it
Between have certain axial distance, separated between the bottom surface of reaction magnetic ring and the first top surface of ring-shaped magnetic component by plastic-sealed body.
Rotor component construction is simply small in size, and reaction magnetic ring is inlaid in groove the manufacture height for reducing rotor assembly, guarantees product
Qualification rate, guarantee upper head plate with reaction magnetic ring and ring-shaped magnetic component in conjunction with reliably.
2, further advantage is detailed in specific embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the rotor assembly that the utility model embodiment one provides；
Fig. 2 is the structural schematic diagram of another angle of rotor assembly；
Fig. 3 is the top view of rotor assembly；
Fig. 4 is the A-A cut-away view of Fig. 3；
Fig. 5 is enlarged drawing at the C of Fig. 4；
Fig. 6 is the B-B cut-away view of Fig. 3；
Fig. 7 is the explosive view of rotor assembly.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment one:
As shown in Figures 1 to 7, provided in this embodiment is a kind of rotor assembly, including several permanent magnets 1, several magnetic conductions
Block 2, shaft 3, plastic-sealed body 4 and reaction magnetic ring 5, form radial groove 21 between adjacent two magnetic inductive block 2, and permanent magnet 1 is nested in diameter
To 21 the inside of groove, several permanent magnets 1 and several magnetic inductive blocks 2 surround ring-shaped magnetic component 11, and reaction magnetic ring 5 is arranged in cyclic annular magnetic
Property component 11 top, the setting of shaft 3 at 11 center of ring-shaped magnetic component, plastic-sealed body 4 by shaft 3, permanent magnet 1, magnetic inductive block 2 and
5 plastic packaging of reaction magnetic ring is integral, it is characterised in that: the plastic-sealed body 4 includes the center for connecting cyclic annular magnet assembly 11 and shaft
Column 41, the bottom plate positioned at 11 bottom of upper head plate 42 and the cyclic annular magnet assembly of connection for connecting cyclic annular 11 top of magnet assembly
43, upper head plate 42 is equipped with groove 44, and the reaction magnetic ring 5 is inlaid in groove 44, the bottom surface 51 of reaction magnetic ring 5 and cyclic annular magnetic
Property component 11 the first top surface 12 between have certain axial distance, the bottom surface 51 of reaction magnetic ring 5 and ring-shaped magnetic component 11
It is separated between first top surface 12 by plastic-sealed body 4.This rotor component construction is simply small in size, and reaction magnetic ring 5 is inlaid in groove
The height of rotor assembly is reduced in 44.
Specifically, the axial distance R1 between the bottom surface 51 of reaction magnetic ring 5 and the first top surface 12 of ring-shaped magnetic component 11
Meet: R1 > 1mm guarantees that upper head plate 42 is combined reliably with reaction magnetic ring 5 and ring-shaped magnetic component 11.Reaction magnetic ring is inlaid in recessed
The manufacture height that rotor assembly is reduced in slot guarantees the qualification rate of product, guarantees upper head plate and reaction magnetic ring and ring-shaped magnetic
Component combines reliable.
Axial distance R1 between the bottom surface 51 of reaction magnetic ring 5 described above and the first top surface 12 of ring-shaped magnetic component 11
Meet: 1mm < R1 < 10mm.Structurally reasonable, when guaranteeing bond strength, save the cost reduces manufacture difficulty.
42 top of upper head plate described above is protruding upward annular convex platform 45, and annular convex platform 45 connects the outer of reaction magnetic ring 5
Side 53, part reaction magnetic ring 5 is axially projecting in outside annular convex platform 45, the second top surface 52 of reaction magnetic ring 5 and annular convex platform 45
Third top surface 451 axial distance R2 meet: R2 > 1mm.Mold is accurate fixed when the reaction magnetic ring 5 of protrusion can facilitate injection molding
Position simultaneously effectively reduces injection molding material burr.
The lateral surface 53 of reaction magnetic ring 5 described above is protruding with several fixing lug boss 55, and fixing lug boss 55 and permanent magnet 1 are right
It should be arranged, fixing lug boss 55 is located in plastic-sealed body 4.Fixing lug boss 55 strengthens the induction between reaction magnetic ring 5 and permanent magnet 1.
The medial surface 54 of reaction magnetic ring 5 described above is protruding with several positioning protrusion 56, and the positioning protrusion 56 of part protrudes
In outside plastic-sealed body 4.Positioning protrusion 56 is used to position the magnetic field position relationship between reaction magnetic ring 5 and ring-shaped magnetic component 11.
Magnetic inductive block 2 described above is equipped with location hole 22, and upper head plate 42 is equipped with corresponding with location hole 22 several first and keeps away position
Hole 421, bottom plate 43 are equipped with corresponding with location hole 22 several second and keep away a hole 431.Location hole 22 facilitates each magnetic inductive block 2 to be molded
Shi Dingwei.
Magnetic inductive block 2 described above, which is set, axially penetrates through hole 23, and the plastic-sealed body 4 further includes the connection being filled in through hole 23
Column 46,46 one end of connecting column are connect with upper head plate 42, and 46 other end of connecting column is connect with bottom plate 43.Connecting column 46 strengthens
Connection between end plate 42 and bottom plate 43 ensure that the connection integral strength of rotor assembly.
Embodiment two:
Provided in this embodiment is a kind of motor, including stator module, rotor assembly 9 and casing, it is characterised in that: described
Rotor assembly 9 is rotor assembly described in embodiment one.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of rotor assembly, including several permanent magnets (1), several magnetic inductive blocks (2), shaft (3), plastic-sealed body (4) and induction magnetic
Ring (5) forms radial groove (21) between adjacent two magnetic inductive block (2), and permanent magnet (1) is nested in inside radial groove (21), if
Dry permanent magnet (1) and several magnetic inductive blocks (2) surround ring-shaped magnetic component (11), and reaction magnetic ring (5) is arranged in ring-shaped magnetic component
(11) top, shaft (3) be arranged at ring-shaped magnetic component (11) center, plastic-sealed body (4) by shaft (3), permanent magnet (1), lead
Magnetic patch (2) and reaction magnetic ring (5) plastic packaging are integral, it is characterised in that: the plastic-sealed body (4) includes connecting cyclic annular magnet assembly
(11) cyclic annular with the newel of shaft (41), the upper head plate (42) being located at the top of the cyclic annular magnet assembly (11) of connection and connection
The bottom plate (43) of magnet assembly (11) bottom, upper head plate (42) are equipped with groove (44), and the reaction magnetic ring (5) is inlaid in recessed
In slot (44), there is certain axis between the bottom surface (51) of reaction magnetic ring (5) and the first top surface (12) of ring-shaped magnetic component (11)
To distance, by plastic-sealed body (4) point between the bottom surface (51) of reaction magnetic ring (5) and the first top surface (12) of ring-shaped magnetic component (11)
It separates.
2. a kind of rotor assembly according to claim 1, it is characterised in that: the medial surface (54) of the reaction magnetic ring (5)
It is protruding with several positioning protrusion (56), the positioning protrusion (56) of part protrudes from plastic-sealed body (4) outside.
3. a kind of rotor assembly according to claim 2, it is characterised in that: the lateral surface (53) of the reaction magnetic ring (5)
It is protruding with several fixing lug boss (55), fixing lug boss (55) is correspondingly arranged with permanent magnet (1), and fixing lug boss (55) is located at plastic-sealed body
(4) in.
4. a kind of rotor assembly according to claim 1 or 2 or 3, it is characterised in that: at the top of the upper head plate (42) upwards
It is protruding with annular convex platform (45), annular convex platform (45) connects the lateral surface (53) of reaction magnetic ring (5), part reaction magnetic ring (5) axis
To protruding from annular convex platform (45) outside.
5. a kind of rotor assembly according to claim 4, it is characterised in that: the second top surface (52) of reaction magnetic ring (5) with
The axial distance R2 of the third top surface (451) of annular convex platform (45) meets: R2 > 1mm.
6. a kind of rotor assembly according to claim 4, it is characterised in that: the bottom surface (51) of the reaction magnetic ring (5) with
Axial distance R1 between the first top surface (12) of ring-shaped magnetic component (11) meets: R1 > 1mm.
7. a kind of rotor assembly according to claim 6, it is characterised in that: the bottom surface (51) of the reaction magnetic ring (5) with
Axial distance R1 between the first top surface (12) of ring-shaped magnetic component (11) meets: 1mm < R1 < 10mm.
8. a kind of rotor assembly according to claim 7, it is characterised in that: the magnetic inductive block (2) is equipped with location hole (22),
Upper head plate (42) is equipped with corresponding with location hole (22) several first and keeps away a hole (421), and bottom plate (43) is equipped with and location hole
(22) corresponding several second a hole (431) are kept away.
9. a kind of rotor assembly according to claim 8, it is characterised in that: the magnetic inductive block (2), which sets, axially penetrates through hole
(23), the plastic-sealed body (4) further includes the connecting column (46) being filled in through hole (23), connecting column (46) one end and upper head plate
(42) it connects, connecting column (46) other end is connect with bottom plate (43).
10. a kind of motor, including stator module, rotor assembly (9) and casing, it is characterised in that: the rotor assembly (9) is power
Benefit require any one of 1 to 9 described in rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682457.3U CN209692449U (en) | 2019-05-14 | 2019-05-14 | A kind of rotor assembly and its motor of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682457.3U CN209692449U (en) | 2019-05-14 | 2019-05-14 | A kind of rotor assembly and its motor of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209692449U true CN209692449U (en) | 2019-11-26 |
Family
ID=68608755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920682457.3U Active CN209692449U (en) | 2019-05-14 | 2019-05-14 | A kind of rotor assembly and its motor of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209692449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258727A (en) * | 2021-06-01 | 2021-08-13 | 广东威灵电机制造有限公司 | Motor and household appliance |
-
2019
- 2019-05-14 CN CN201920682457.3U patent/CN209692449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258727A (en) * | 2021-06-01 | 2021-08-13 | 广东威灵电机制造有限公司 | Motor and household appliance |
| CN113258727B (en) * | 2021-06-01 | 2022-05-03 | 广东威灵电机制造有限公司 | Motor and household appliance |
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