CN205407442U - Motor rotor structure and linear electric motor - Google Patents
Motor rotor structure and linear electric motor Download PDFInfo
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- CN205407442U CN205407442U CN201520908316.0U CN201520908316U CN205407442U CN 205407442 U CN205407442 U CN 205407442U CN 201520908316 U CN201520908316 U CN 201520908316U CN 205407442 U CN205407442 U CN 205407442U
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Abstract
The utility model relates to an electric machine the active cell structure, including injection molding body and magnet steel, the magnet steel embedding in the injection molding body, both form a whole, the magnet steel be provided with the recess on the surface, the injection molding body is provided with the embedding the skeleton of recess. The utility model provides a be provided with the linear electric motor of motor rotor structure. The utility model provides a motor rotor structure, the active cell comprises with the material of moulding plastics permanent magnet, and it utilizes injection moulding technology to become active cell overall structure with the magnet steel cladding in the injection molding body to operating reliability of active cell and the saturation level who magnetizes have been guaranteed. At the peripheral fluting of active cell magnet steel, the material of moulding plastics reduces the active cell wall thickness in filling the groove, reduces the air gap. And the shooting technique adopts mould production, improves production efficiency, and is workable, reduction in production cost.
Description
Technical field
This utility model relates to a kind of electric mover structure and linear electric motors.
Background technology
Existing Structure of mover, employing is first injection structure bracing frame, then pastes magnet steel, with net cover sticking magnet steel surface, forms Structure of mover.
Existing structure relies on adhesive to paste, and causes complex process, not easily ensures surface size and circularity.Adhesive can be deteriorated by aging intensity in for a long time at motor, and motor runs up, and under centrifugal action, as being pasted not strongly, easily occurs magnet steel to depart from fault.Structure of mover intensity deficiency problem, constrains the linear compressor application in art of refrigeration units.
Magnet steel is pasted by existing structure glue, operates loaded down with trivial details, and setting time is long, and due to magnet steel magneticaction, collide fragile magnet steel.
Having the material that injection moulding is coated with between existing structure mover and interior external stator, thickness not easily ensures, injection moulding difficulty, and air gap is relatively big, and under certain exciting current, electromagnetic consumable is relatively big, and electromagnetic force weakens.
Utility model content
In view of this, the purpose of this utility model is in that to provide a kind of electric mover structure and linear electric motors, to solve technical problem of the prior art.
According to first aspect of the present utility model, it is provided that a kind of electric mover structure, including injection molding body and magnet steel, described magnet steel embeds in described injection molding body, and both form an entirety；Being provided with groove on the surface of described magnet steel, described injection molding body is provided with the skeleton embedding described groove.
Preferably, described magnet steel is provided with multiple, and described injection molding body is provided with the reinforcement in the space formed between adjacent two magnet steel.
Preferably, the cross section of described reinforcement is triangle.
Preferably, the first end of described magnet steel and the second end corresponding thereto are all coated with by described injection molding body.
Preferably, described injection molding body wall thickness radially is identical with described magnet steel thickness in radial directions.
Preferably, the sidewall of described injection molding body and end face are provided with ventilation lightening hole.
Preferably, the end face of described injection molding body is provided with mounting-positioning holes and connecting hole.
Preferably, the first end face of described magnet steel is provided with hole, location.
According to second aspect of the present utility model, it is provided that a kind of linear electric motors, it is provided with above-mentioned electric mover structure.
The electric mover structure that this utility model provides, mover is made up of permanent magnet and injected plastics material, and it utilizes injection molding process to be coated in injection molding body by magnet steel becomes mover overall structure, thus ensure that the operating reliability of mover and the degree of saturation magnetized.In mover magnet steel peripheral groove, injected plastics material is filled in groove, reduces mover wall thickness, reduces air gap.And Shooting Technique, adopt mould to produce, improve production efficiency about 30%, easily process, reduce production cost.
Accompanying drawing explanation
By referring to the accompanying drawing description to this utility model embodiment, of the present utility model above-mentioned and other purposes, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is this utility model electric mover structural representation；
Fig. 2 is this utility model axial cross-sectional schematic of electric mover structure；
Fig. 3 is this utility model electric mover construction first end face schematic diagram；
Fig. 4 is magnetic steel structure schematic diagram；
Fig. 5 is the radial section schematic diagram that this utility model electric mover structure is provided with magnet steel position.
Detailed description of the invention
It is more fully described various embodiment of the present utility model hereinafter with reference to accompanying drawing.In various figures, identical element adopts same or similar accompanying drawing labelling to represent.For the sake of clarity, the various piece in accompanying drawing is not necessarily to scale.
As shown in Figure 1, 2, 3, the electric mover structure that this utility model provides includes injection molding body 1 and magnet steel 2, and described magnet steel 2 is embedded in described injection molding body 1, and both form an entirety, and described magnet steel 2 is positioned at one end of described injection molding body 1.The injected plastics material of described injection molding body 1 can use environment, power transmission size, Shooting Technique, adhesive property and equipment to select plastic material or the reinforced plastic material such as polyamide, polyurethane, polyester, epoxy resin according to Structure of mover.
As shown in Figure 4, described magnet steel 2 main body is circular arc, including the first arc surface 21 and the second arc surface 22, described first arc surface 21 and the second arc surface 22 place circle are concentric circular, to ensure that described magnet steel 2 realizes being uniformly distributed of magnetic field circumference magnetic force in a circumferential direction, improve the radial force balance of mover when motor runs.Described magnet steel 2 is provided with groove 23 and hole 24, location, described groove 23 is arranged on described magnet steel 2 surface along the first arc surface 21 of described magnet steel 2 and the axial direction of the second arc surface 22, preferably, described groove 23 is arranged on two arc surfaces of described magnet steel 2 and the side between the first arc surface 21 and the second arc surface 22, and described groove 23 along described magnet steel 2 first arc surface 21 and the second arc surface 22 axial direction completely through.Hole, described location 24 is arranged on the first end face along the axial direction of the first arc surface 21 of described magnet steel 2 and the second arc surface 22, and hole, described location 24 is preferably blind hole, and hole, described location 24 is preferably provided with two or more.
The injection mold (not shown) of the electric mover structure that this utility model provides lays alignment pin, the quantity of described alignment pin is determined according to quantity and the forced position of required described magnet steel 2, coordinates with the hole, location 24 on described magnet steel 2 and described magnet steel 2 is positioned on axially and radially.The end making described alignment pin during injection moulding is arranged in the hole, location 24 on described magnet steel 2, and after injection mo(u)lding, described injection molding body 1 can by the first end of described magnet steel 2 and the second end cladding corresponding thereto.Preferably, the length of described alignment pin is more than the degree of depth in hole, described location 24, and after making described magnet steel 2 be put in described injection mold, its first end is from described injection mold certain distance.
As shown in Figure 1,5, after injection mo(u)lding, described injection molding body 1 has the skeleton 16 in the groove 23 embedded on described magnet steel 2 and the reinforcement 17 in the space between adjacent described magnet steel 2, and the cross section of described reinforcement 17 is triangle, further enhance the reliability that described magnet steel 2 is combined with injection molding body 1, it is to avoid described magnet steel 2 comes off.
As shown in Figure 1, the part being not provided with described groove 23 on first arc surface 21 of described magnet steel 2 and the second arc surface 22 is positioned on same curved surface with the surfaces externally and internally of described injection molding body 1 respectively, namely the thickness in the radial direction of described injection molding body 1 is identical with described magnet steel 2 thickness in radial directions, reduce the wall thickness of Structure of mover, it is possible to reduce the air gap between Structure of mover and stator.
As shown in Figure 1,3, described injection molding body 1 is provided with axis hole 11 in the one end away from described magnet steel 2, and described axis hole 11 is for the installation of power transmission shaft.The end face being provided with described axis hole 11 is additionally provided with mounting-positioning holes 12 and connecting hole 13, location when described mounting-positioning holes 12 is installed for described power transmission shaft, guarantee that inside and outside described Structure of mover and motor, stator air gap is uniform, it is to avoid occur that bias sweeps the phenomenon of thorax.Described connecting hole 13 is bolted for described Structure of mover and power transmission shaft.Preferably, in order to increase heat dissipation capacity and alleviate weight, the sidewall and end face of described injection molding body 1 are provided with ventilation lightening hole 14, the sidewall of described injection molding body 1 is additionally provided with lightening grooves 15.
The electric mover structure that this utility model provides, magnetizes to described magnet steel 2 after injection mo(u)lding again, reduces the magnetic loss of described magnet steel 2.And integrated injection molding improves Structure of mover bulk strength and reliability, use the one-body molded precision being also beneficial to improve size of mold injection, it is ensured that air gap is uniform.
The manufacture method of this utility model electric mover structure is:
It is concentrically ringed circular arc that magnet steel 2 is processed into internal diameter and external diameter, and then on the surface of described magnet steel 2, axial direction arcuately offers groove 23, it is preferable that described groove 23 along circular arc axially completely through the surface of described magnet steel 2；Described magnet steel 2 first end face arranges hole 24, location.Quantity house alignment pin according to the position in hole, described location 24 and described magnet steel 2 in a mold, the hole, location 24 described magnet steel 2 put in mould and makes described alignment pin be positioned on described magnet steel 2, adjust injection parameters and carry out injection moulding.After injection mo(u)lding, described magnet steel 2 is magnetized, reduce the loss of magnetic in the course of processing.
A kind of linear electric motors being provided with the electric mover structure that this utility model provides, owing to the wall thickness of its Structure of mover is relatively thin, reduce the air gap between mover and stator, electromagnetic consumable reduces, electromagnetic force amplitude is made to increase, and Structure of mover size uniform, ensure that after installation that the air gap between itself and interior external stator is uniform, make the efficiency of linear electric motors be improved.Simultaneously as Structure of mover adopts integrated injection molding, it is to avoid the fault that described magnet steel 2 comes off occurs, the operation also making direct current generator is relatively reliable.
Should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.
Last it is noted that obvious, above-described embodiment is only for clearly demonstrating this utility model example, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change thus amplified out or variation are still among protection domain of the present utility model.
Claims (9)
1. an electric mover structure, it is characterised in that include injection molding body and magnet steel, described magnet steel embeds in described injection molding body, and both form an entirety；Being provided with groove on the surface of described magnet steel, described injection molding body is provided with the skeleton embedding described groove.
2. electric mover structure according to claim 1, it is characterised in that described magnet steel is provided with multiple, described injection molding body is provided with the reinforcement in the space formed between adjacent two magnet steel.
3. electric mover structure according to claim 2, it is characterised in that the cross section of described reinforcement is triangle.
4. electric mover structure according to claim 1, it is characterised in that the first end of described magnet steel and the second end corresponding thereto are all coated with by described injection molding body.
5. the electric mover structure according to any one of claim 1-4, it is characterised in that described injection molding body wall thickness radially is identical with described magnet steel thickness in radial directions.
6. the electric mover structure according to any one of claim 1-4, it is characterised in that be provided with ventilation lightening hole on the sidewall and end face of described injection molding body.
7. the electric mover structure according to any one of claim 1-4, it is characterised in that be provided with mounting-positioning holes and connecting hole on the end face of described injection molding body.
8. the electric mover structure according to any one of claim 1-4, it is characterised in that be provided with hole, location on the first end face of described magnet steel.
9. linear electric motors, it is characterised in that be provided with the electric mover structure described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908316.0U CN205407442U (en) | 2015-11-13 | 2015-11-13 | Motor rotor structure and linear electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908316.0U CN205407442U (en) | 2015-11-13 | 2015-11-13 | Motor rotor structure and linear electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205407442U true CN205407442U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520908316.0U Active CN205407442U (en) | 2015-11-13 | 2015-11-13 | Motor rotor structure and linear electric motor |
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| Country | Link |
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| CN (1) | CN205407442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406623A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, rotor structure manufacturing method and linear motor |
-
2015
- 2015-11-13 CN CN201520908316.0U patent/CN205407442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406623A (en) * | 2015-11-13 | 2016-03-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor structure, rotor structure manufacturing method and linear motor |
| CN105406623B (en) * | 2015-11-13 | 2018-08-07 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of electric mover structure, Structure of mover manufacturing method and linear motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |