CN205453337U - New forms of energy are towards piece - Google Patents

New forms of energy are towards piece Download PDF

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Publication number
CN205453337U
CN205453337U CN201620244423.2U CN201620244423U CN205453337U CN 205453337 U CN205453337 U CN 205453337U CN 201620244423 U CN201620244423 U CN 201620244423U CN 205453337 U CN205453337 U CN 205453337U
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CN
China
Prior art keywords
punching
mounting hole
new forms
energy
abaculus
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Active
Application number
CN201620244423.2U
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Chinese (zh)
Inventor
陈壮斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenling Shanshi Sheet Metal Parts Factory
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Wenling Shanshi Sheet Metal Parts Factory
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Priority to CN201620244423.2U priority Critical patent/CN205453337U/en
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Publication of CN205453337U publication Critical patent/CN205453337U/en
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Abstract

The utility model discloses a new forms of energy are towards piece, its technical scheme main points are: include towards the lamellar body, it has a plurality of abaculuss to distribute towards lamellar body outward flange circumference, forms the caulking groove that is used for installing the magnet steel piece between two adjacent abaculuss, be equipped with the main shaft mounting hole towards piece main part middle part, be equipped with the lug on the main shaft mounting hole pore wall, junction between lug and the main shaft mounting hole is equipped with the arc recess, receive magnetic field and produce when rotatory towards the lamellar body, its torsion can at first reach the lug, the lateral wall of lug can directly take place to contradict with the motor shaft, and stress concentration can be in the junction between lug and the main shaft mounting hole, and the arc recess is located this junction, the stress concentration of this junction can reduce substantially, even live time aftermath, junction between lug and the main shaft mounting hole pore wall also can not be because of the too big production crack of stress concentration, and then electric motor rotor's actual service life has been promoted.

Description

A kind of new forms of energy punching
Technical field
This utility model relates to motor accessory field, particularly to a kind of new forms of energy punching.
Background technology
New Energy Industry is swift and violent, especially based on new forms of energy motor, new forms of energy motor internal mainly includes rotor and stator, internal rotor is mainly formed by stacking by multiple rotor punchings, common motor rotor punching sheet, such as the Chinese utility model one rotor punching piece used for motor of electric vehicle that notification number is CN201466829U, it includes rotor punching body, outer surface at rotor punching body uniformly has the groove for mounting magnetic steel sheet, it is spindle mounting hole in the middle of rotor punching body, motor shaft can be directly protruding in spindle mounting hole, and carry out inlay card by the projection on spindle mounting hole hole wall, ensure the connective stability between motor shaft and spindle mounting hole.
Realize by the inlay card of projection when the coupling part of rotor with motor shaft is substantially; and for being directed to rotor punching; its stress concentration point junction between projection and spindle mounting hole hole wall; and traditional punching is all to be formed by stamping-out; would generally occur with sharp-pointed inflection point form between projection and spindle mounting hole hole wall; the use time one is long, and slight crack occurs in the junction between projection meeting and spindle mounting hole hole wall, affects the actual life of rotor.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of new forms of energy punching, and it has the feature of lifting motor rotor actual life.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of new forms of energy punching, including punching body, described punching outer rim circle distribution has some abaculus, the caulking groove for mounting magnetic steel sheet is formed between adjacent two abaculus, it is provided with spindle mounting hole in the middle part of described punching main body, described spindle mounting hole hole wall is provided with projection, and the junction between described projection and spindle mounting hole is provided with arc groove.
Pass through technique scheme, when punching body is produced rotation by the action of a magnetic field, first its torsion can reach projection, can directly conflict with motor shaft in the lateral wall of projection, and stress concentration can be in the junction between projection and spindle mounting hole, and arc groove is positioned at this junction, the stress that this junction can be greatly reduced is concentrated, even if the use time is the longest, junction between projection and spindle mounting hole hole wall also stress will not be concentrated excessive and produce slight crack, and then improves the actual life of rotor.
Preferably, described abaculus is provided with fall magnetic groove away from the sidewall of punching body.
By technique scheme, fall magnetic groove can reduce the magnetic field intensity sent outside abaculus targetedly so that the external magnetic field intensity of whole punching obtains active balance.
Preferably, described fall magnetic groove includes that major trough and opening, described major trough are circular, and described major trough is communicated away from the sidewall of punching body with abaculus by opening.
Pass through technique scheme, due to meeting mounting magnetic steel sheet between adjacent two abaculus, meanwhile, the two side of abaculus can be by the squeezing action of magnetic links, abaculus can deform toward fall magnetic groove side, and major trough is provided in round reducing the stress concentration that major trough cell wall produces due to deformation;It is provided with opening on fall magnetic groove, the deformation space that abaculus sidewall is sufficient can be given.
Preferably, the width size of described opening is less than the diameter of major trough.
By technique scheme, the opening of fall magnetic groove presents reducing and arranges, especially when rotor in actual use, the cross-ventilation reduced between air and major trough can be played, and then reduce the noise sent when motor runs.
Preferably, described punching body is provided with some cooling grooves, and some described cooling grooves are circumferentially array distribution with punching body center for the center of circle.
By technique scheme, after multiple punching body weight are folded, and rotor is in rotary course, and air-flow can directly flow through cooling groove, so that whole punching body is lowered the temperature;And groove of lowering the temperature with punching body center for the center of circle circumferentially array distribution, can effectively promote the actual cooling-down effect of rotor punching.
Preferably, punching body is lowered the temperature between grooves by adjacent two by the radius of projection.
By technique scheme, in order to be able to increase the connective stability between projection and punching body, the junction point between punching body and projection is located just between two cooling grooves, can effectively promote the bonding strength at this junction point.
Preferably, the minimum spacing between the width size of described projection with adjacent two cooling grooves is in the same size.
Pass through technique scheme, in order to be able to take into account the bonding strength between the structural strength of projection, projection and punching body, the width of projection thinks that the minimum spacing between two adjacent cooling grooves is configured as standard, at utmost ensure that structural stability when motor runs.
Preferably, described abaculus be shaped as triangle, the sharp corner of described abaculus is integrally connected to punching body.
By technique scheme, after magnetic links is embedded into two adjacent abaculus, can be fixed by the clamping stagnation effect of triangle abaculus hypotenuse, thus add the connective stability between magnetic links and punching body.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment;
Fig. 2 be embodiment face structural representation;
Fig. 3 is the A portion enlarged drawing of Fig. 2;
Fig. 4 is the B portion enlarged drawing of Fig. 2.
Reference: 1, punching body;2, abaculus;3, caulking groove;4, spindle mounting hole;5, projection;6, arc groove;7, fall magnetic groove;71, major trough;72, opening;9, cooling groove;10, radius.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
See shown in Fig. 1 and Fig. 2, a kind of new forms of energy punching, including discoidal punching body 1, the outward flange of this punching body 1 is evenly distributed with some abaculus 2, abaculus 2 be shaped as triangle, and the sharp corner of abaculus 2 is integrally connected to punching body 1, forms caulking groove 3 between adjacent two abaculus 2, during actually used, can be inserted directly into, in caulking groove 3, the magnetic links that shape is consistent therewith;Center position in punching main body is provided with spindle mounting hole 4, and the hole wall of this spindle mounting hole 4 is provided with square projection 5, shown in Figure 3, and the junction between this projection 5 and spindle mounting hole 4 hole wall is provided with arc groove 6.
Shown in Figure 4, abaculus 2 is provided with fall magnetic groove 7 away from the sidewall of punching body 1, and this fall magnetic groove 7 includes major trough 71 and the opening 72 of circle, and major trough 71 is communicated away from the sidewall of punching body 1 with abaculus 2 by opening 72;Opening 72 width size is a, and the diameter of major trough 71 is b, and wherein a is less than b, and the center that opening 72 direction is by major trough 71.
It addition, see shown in Fig. 1 and Fig. 2, being provided with the cooling groove 9 of some circles on punching body 1, some cooling grooves 9 are circumferentially distributed along the center of punching body 1.
Wherein, shown in Figure 2, punching body 1 is lowered the temperature between grooves 9 by adjacent two by the radius 10 of projection 5, and the width size of projection 5 is c, and the minimum spacing sizes between adjacent two cooling grooves 9 are d, and wherein c is equal to d.
The above is only exemplary embodiment of the present utility model, and not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.

Claims (8)

1. a new forms of energy punching, including punching body (1), described punching body (1) outward flange circle distribution has some abaculus (2), the caulking groove (3) for mounting magnetic steel sheet is formed between adjacent two abaculus (2), spindle mounting hole (4) it is provided with in the middle part of described punching main body, described spindle mounting hole (4) hole wall is provided with projection (5), it is characterized in that: the junction between described projection (5) and spindle mounting hole (4) is provided with arc groove (6).
A kind of new forms of energy punching the most according to claim 1, is characterized in that: described abaculus (2) is provided with fall magnetic groove (7) away from the sidewall of punching body (1).
A kind of new forms of energy punching the most according to claim 2, it is characterized in that: described fall magnetic groove (7) includes major trough (71) and opening (72), described major trough (71) is circular, and described major trough (71) is communicated away from the sidewall of punching body (1) with abaculus (2) by opening (72).
A kind of new forms of energy punching the most according to claim 3, is characterized in that: the width size of described opening (72) is less than the diameter of major trough (71).
A kind of new forms of energy punching the most according to claim 1, it is characterized in that: described punching body (1) is provided with some cooling grooves (9), some described cooling grooves (9) are the center of circle circumferentially array distribution with punching body (1) center.
A kind of new forms of energy punching the most according to claim 5, is characterized in that: punching body (1) is lowered the temperature between groove (9) by adjacent two by the radius (10) of projection (5).
A kind of new forms of energy punching the most according to claim 1, is characterized in that: the minimum spacing between the width size of described projection (5) with adjacent two coolings groove (9) is in the same size.
A kind of new forms of energy punching the most according to claim 1, is characterized in that: described abaculus (2) be shaped as triangle, the sharp corner of described abaculus (2) is integrally connected to punching body (1).
CN201620244423.2U 2016-03-25 2016-03-25 New forms of energy are towards piece Active CN205453337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620244423.2U CN205453337U (en) 2016-03-25 2016-03-25 New forms of energy are towards piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620244423.2U CN205453337U (en) 2016-03-25 2016-03-25 New forms of energy are towards piece

Publications (1)

Publication Number Publication Date
CN205453337U true CN205453337U (en) 2016-08-10

Family

ID=56607810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620244423.2U Active CN205453337U (en) 2016-03-25 2016-03-25 New forms of energy are towards piece

Country Status (1)

Country Link
CN (1) CN205453337U (en)

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