CN1992471A - Motor - Google Patents
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- Publication number
- CN1992471A CN1992471A CNA2006101714269A CN200610171426A CN1992471A CN 1992471 A CN1992471 A CN 1992471A CN A2006101714269 A CNA2006101714269 A CN A2006101714269A CN 200610171426 A CN200610171426 A CN 200610171426A CN 1992471 A CN1992471 A CN 1992471A
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- mentioned
- bearing
- retainer
- motor
- bearing plate
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- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention provides a motor in which a bearing press plate is difficult to be desquamated from a bearing hold frame. A screw mandrel motor comprises: a bearing hold frame (12) comfigured by embeding an axes bearing (11) which supports a rotation shaft (2) in a freely rotating manner into a bearing storage hole (12a); a bearing anti-peeling plate (a bearing press plate 13) having a leaf spring piece (13a) for pressing the axes bearing (11) in an axial direction, and mounted on the bearing hold frame (12). The bearing hold frame (12) comprises a flange portion (12b) having a pair of guide edge portions (X1, X2) which are provided in parallel and a pair of guide edge portions (Y1, Y2) which are orthogonal with the guide edge portions (X1, X2) and are provided in parallel. The bearing press plate (13) includes clamping edge portions (W1, W2) having sliding grooves (S1, S2) for inserting into the guide edge portions (X1, X2) or the guide edge portions (Y1, Y2).
Description
Technical field
The present invention relates to miniature motors such as screw motor, especially about being used for retainer and being maintained at the improvement that the bearing on this retainer is pushed afterburning bearing plate in the axial direction.
Background technology
In the past, open among the 2003-324892 in the disclosed screw motor the spy, has following structure: the retainer that is configured for keeping pivot by the sinter molding product, it is fixedly welded on the yoke of external stator, to have in the axial direction the bearing plate that trunnion bearing is pushed afterburning spring leaf and cover the end face that is installed in retainer, the hook-shaped installation portion that is formed on the two edges of bearing plate is fastened on the recess of bearing cage respectively.
Patent documentation 1: the spy opens 2003-324892
Though this bearing plate is the parts that have as the function of bearing anticreep plate, but owing in the axial direction trunnion bearing is pushed reinforcing usually by the spring leaf of having cut, so the rapid axial force because of applying to the screw mandrel as motor drive shaft such as when starting exists the situation that the hook-shaped installation portion of bearing plate can come off from the recess of retainer.In addition, because the moulding deviation of spring leaf and hook-shaped installation portion makes axial covering that the degree difference is installed, so deviation is taken place the pressing force that is applied on the trunnion bearing easily.And owing to apply rapid axial force repeatedly, so the phenomenon that elastic force weakens takes place on spring leaf easily, the easy time of origin of pressing force that is applied to trunnion bearing weakens.
Summary of the invention
Therefore, in view of the above problems, the 1st problem of the present invention provides the difficult motor that comes off from retainer of a kind of bearing plate.
The 2nd problem of the present invention provides the motor that pressing force on a kind of bearing that is applied to bearing plate is difficult for taking place deviation.
The 3rd problem of the present invention provides pressing force on a kind of bearing that is applied to bearing plate and is difficult for the motor that causes that timeliness weakens.
For solving above-mentioned problem, motor of the present invention comprises: retainer, but it will constitute from axial embedding bearing accepting hole with the bearing of free rotation mode supporting motor drive shaft; Bearing plate, it has the elastic portion that is used for flexibly above-mentioned bearing being pushed in the axial direction reinforcing, and is installed on the above-mentioned retainer; It is characterized in that on retainer and bearing plate, having the slidingtype erecting device, this slidingtype erecting device is used for being installed to this retainer from radially this bearing plate being inserted of retainer.
Owing to have the slidingtype erecting device, in the assembling of motor, after axially bearing being embedded the bearing accepting hole of retainer, can be with bearing plate from the radially insertion retainer of retainer and install, extract roughly quadrature of direction so be applied to the axial force of elastic portion of bearing plate and the insertion of bearing plate, axial force does not exert an influence extracting on the direction of bearing plate, so bearing plate is difficult for coming off from retainer.In addition because bearing plate is installed in the radially insertion of retainer, so elastic portion for retainer axially on the location can unitize, the pressing force that is applied to the bearing of bearing plate is difficult for producing deviation.
As this slidingtype erecting device, for example can adopt following structure, comprising: a pair of guide part that is parallel to each other, it is formed on the end of above-mentioned retainer, and the axle center is placed therebetween radially extension; Accordingly can be with above-mentioned a pair of guide part along a pair of slot part of this guide part slip, this slot part places above-mentioned elastic portion integrally formed with above-mentioned bearing plate therebetween.In this structure, be integrally formed on the bearing plate with a pair of guide part, and the situation that a pair of slot part is integrally formed on the retainer compares, the axial length of retainer is shortened.
Though can use the spring leaf of having cut as elastic portion, because the beam length of spring leaf is shorter, so coefficient of elasticity is bigger, and it is big that the deviation of the elasticity pressing force of spring leaf becomes.Like this, preferably use the bending and make its free end side push the bended plate spring sheet of bearing of turning back at the edge of bearing plate as elastic portion.Because it is elongated to comprise the beam length of warpage part, coefficient of elasticity is diminished, thereby can suppress the deviation of elasticity pressing force.
In addition, the preferred axes bearing plate has the stopper section of the amount of elastic deformation of restriction elastic portion.The excessive deformation of the elastic deformation portion that causes because of the rapid axial force that applies to motor drive shaft in the time of can stop starting with the stopper section etc., thus the phenomenon that the elastic force of elastic portion weakens can be suppressed.This stopper section can be when the pressing part that is connected to above-mentioned bearing of above-mentioned elastic portion moves back because of elastic deformation keeps away, and stops the projection of above-mentioned bearing.
Here, preferably on retainer and bearing plate, has the location retainer, the insertion depth with respect to retainer of this location retainer restrictive axes bearing plate.The pressing part that is connected to the bearing of elastic portion can be located uniformly.As this location retainer, can use: the edge portion of bearing holder end-face side; On the edge of bearing plate integrally formed and with the bend of the edge portion butt of the end face side of retainer.The operating portion by finger-tip operated when this bend can be used as bearing plate insertion retainer utilizes.
And, preferably on retainer and bearing plate, have the fastening mechanism that stops this bearing plate to be extracted with respect to this retainer.As this fastening mechanism can be: be formed at the fastening hole of bearing holder end-face and integrally formed and insert to move the fastening hook that falls into the fastening hole with respect to retainer on bearing plate by this bearing plate.On the contrary, also can be: be formed at the fastening hole of bearing plate and integrally formed and move the fastening projection that embeds the fastening hole by the insertion with respect to this retainer of this bearing plate on the end face of retainer.
As retainer, preferably integrally formed with the resin portion of external stator side.Can realize the minimizing of part number and the deviations of inhibition bearing.
In the present invention, bearing plate can not come off from retainer, in addition, can suppress to be applied to the deviation of the pressing force of bearing.
Description of drawings
Fig. 1 is the stereogram of the screw motor that relates to of expression embodiments of the invention 1.
Fig. 2 is the mounting means of bearing anticreep plate is installed in a stereogram from expression to the retainer of same motor.
Fig. 3 is the cutaway view of the same screw motor of expression.
Among Fig. 4, (A) be the vertical view of same bearing anticreep plate, (B) be the front view of same bearing anticreep plate, (C) be the left view of same bearing anticreep plate, (D) be the right view of same bearing anticreep plate, (E) being the upward view of same bearing anticreep plate, (F) is the rearview of same bearing anticreep plate.
Among Fig. 5, (A) be stereogram, (B) be the stereogram of observing same bearing anticreep plate from behind from the same bearing anticreep of top view plate.
Fig. 6 is the stereogram of the screw motor that relates to of expression embodiments of the invention 2.
Fig. 7 is the mounting means of bearing anticreep plate is installed in a stereogram from expression to the retainer of same motor.
Among Fig. 8, (A) expression is dissectd the cutaway view of state along A-A ' line among Fig. 7, (B) is the cutaway view that dissects state along B-B ' line among Fig. 7.
Among Fig. 9, (A) be the vertical view of same bearing anticreep plate, (B) be the front view of same bearing anticreep plate, (C) be the left view of same bearing anticreep plate, (D) be the right view of same bearing anticreep plate, (E) being the upward view of same bearing anticreep plate, (F) is the rearview of same bearing anticreep plate.
Among Figure 10, (A) be stereogram, (B) be the stereogram of observing same bearing anticreep plate from behind from the same bearing anticreep of top view plate.
The explanation of Reference numeral
1,1 ' motor body
2,2 ' motor axis of rotation
2a front end reducing diameter part
2b embraces the ball hole
3,3 ' framework
4 bearings
5 magnet
5a the 1st magnet
5b the 2nd magnet
6,6 ' motor shell
The 6a otch
7 yokes (iron core)
The outer mutually yoke of 7aa A
The interior mutually yoke of 7ab A
The outer mutually yoke of 7ba B
The interior mutually yoke of 7bb B
8 insulating resin portions
The 8a terminal board
9 coils
9a A phase coil
9b B phase coil
10 steel balls
11 trunnion bearings
11 ' thrust bearing
The 11a dead eye
11b end face (back side)
12,12 ' retainer
12a bearing accepting hole
The 12b flange part
12b ', 12c ' rail portion (projecting strip part)
12ba ', 12ca ' guide part
13,13 ' bearing anticreep plate (bearing plate)
The 13a plate spring sheet
13a ' baseplate part
13b ' bending plate spring sheet
The B bonding agent accumulates the place
D
1～D
3The rotating shaft diameter
F fastening hook
G fastening projection
H
1～H
4, H ' fastening hole
L left-right symmetric axle
The M retainer
P prism-shaped terminal pins
Q
1, Q
2Stop tab
S
1, S
2Sliding tray
U bending free end then
The V endless groove
X
1, X
2, Y
1, Y
2Guiding rim portion
W
1, W
2Clamping rim portion
The Z guiding surface
Embodiment
Below, with reference to the accompanying drawings embodiments of the present invention are described.
(embodiment 1)
Fig. 1 is the stereogram of the screw motor that relates to of expression embodiments of the invention 1.Fig. 2 is the mounting means of bearing anticreep plate is installed in a stereogram from expression to the retainer of same motor.Fig. 3 is the cutaway view of the same screw motor of expression.Among Fig. 4, (A) be the vertical view of same bearing anticreep plate, (B) be the front view of same bearing anticreep plate, (C) be the left view of same bearing anticreep plate, (D) be the right view of same bearing anticreep plate, (E) being the upward view of same bearing anticreep plate, (F) is the rearview of same bearing anticreep plate.Among Fig. 5, (A) be stereogram, (B) be the stereogram of observing same bearing anticreep plate from behind from the same bearing anticreep of top view plate.
Shown in Fig. 1～3, the screw motor of present embodiment comprises: motor axis of rotation 2, and it is given prominence to and formation screw mandrel (not shown) from motor body 1; Bearing 4 attaches it on the framework 3 by an end surface supporting of the motor shell 6 of motor body 1, and the front end reducing diameter part 2a of supporting rotating shaft 2 rotatably.
By rotating shaft 2 base end parts embrace in the 2b of ball hole and steel ball 10 that the dead eye 11a of trunnion bearing 11 is embedded in can be rotated to support on the trunnion bearing 11 rotating shaft 2.This trunnion bearing 11 embed with insulating resin 8 integrally formed and from the bearing accepting hole 12a of the outstanding retainer 12 of motor shell 6, prevent to come off by bearing anticreep plate (bearing plate) 13 reinforcing that is pressed in the axial direction.
As shown in Figure 2, retainer 12 has the flange part 12b of essentially rectangular, and this flange part 12b has a pair of guiding rim X of portion that is parallel to each other
1, X
2And with a pair of guiding rim Y of portion that is parallel to each other of their quadratures
1, Y
2In addition, as Fig. 4 and shown in Figure 5, bearing anticreep plate 13 is by a metallic plate punch forming, for the corresponding essentially rectangular of the shape of flange part 12b, portion has cut and has been formed with the plate spring sheet 13a that is used for the central portion crimping of trunnion bearing 11 end faces (back side) 11b in the central.As shown in Figure 4, in bearing anticreep plate 13, being the cross section that forms by 2 bendings across a pair of rim of the central axis L of plate spring sheet 13a is " コ " font roughly, forms the clamping rim W of portion
1, W
2, this clamping rim W of portion
1, W
2Have and be used for inserting the guiding rim X of portion
1, X
2The Y of rim portion perhaps leads
1, Y
2Sliding tray S
1, S
2The a pair of guiding rim X of portion
1, X
2The Y of rim portion perhaps leads
1, Y
2With the clamping rim W of portion
1, W
2Be configured for anticreep board mounting assembly that bearing anticreep plate 13 is installed from radially the inserting this retainer 12 of retainer 12.
In addition, the W of clamping rim portion
1, W
2A rim in addition is folded back, and forms the retainer M of the insertion depth of restriction bearing anticreep plate 13.And, retainer M in this bearing anticreep plate 13 and the clamping rim W of portion
2Near the bight of reporting to the leadship after accomplishing a task, in order to stop from the side of flange part 12b in case any one the fastening hole H that is formed with retainer 12 has been cut in extracting of the bearing anticreep plate 13 that inserts
1～H
4The elasticity fastening hook F of engaging.
When the assembling of the motor body 1 of this screw motor, after axially trunnion bearing 11 being embedded the bearing accepting hole 12a of retainers 12, as shown in Figure 2, with the clamping rim W of portion of bearing anticreep plate 13
1, W
2Insert the guiding rim X of portion of retainer 12 from radially (side) of retainer 12
1, X
2In this insertion process, though the plate spring sheet 13a that tilts props up the protuberance of flange part 12b, because the front end of plate spring sheet 13a strides across protuberance in the rearmost end of direction of insertion, does not fall into the end face 11b of trunnion bearing 11 with then being stuck, at the retainer M butt guiding rim Y of portion
1The time, fastening hook F also falls into fastening hole H
1In and block, thereby plate spring sheet 13a is located in the central portion of the end face 11b of trunnion bearing 11.Because the axial counter-force of plate spring sheet 13a and the extracting the direction quadrature of this bearing anticreep plate 13 and do not exert an influence, the situation that the bearing anticreep plate 13 of retainer 12 comes off from retainer 12 then can not take place to be installed to from the side.And, because fastening hook F fastening is to fastening hole H
1Even, can not come off from retainer 12 just in case apply the power of extracting direction to bearing anticreep plate 13 yet.In addition, even on bearing anticreep plate 13, not be not provided with as hook-shaped installation portion in the past, also can suppress to be applied to the deviation of the pressing force of trunnion bearing 11.
Owing in flange part 12b, be formed with the guiding rim X of portion
1, X
2And the guiding rim Y of portion
1, Y
2So, can be from the opposite direction bearing anticreep plate 13 being inserted with side shown in Figure 2, in addition, for a pair of guiding rim Y of portion
1, Y
2Can be from two-way insertion.At this moment, fastening hook F fastening fastening hole H
3, H
4Perhaps H
2Therefore, can bearing anticreep plate 13 be inserted flange part 12b from 4 directions radially, thereby can improve the assembleability of bearing anticreep plate 13.
And retainer 12 prolongations are used for the yoke 7 of insulated separation stator and the insulating resin portion 18 of coil 9 is integrally formed therewith.Therefore, can realize the inhibition of the deviations of the minimizing of part number and trunnion bearing 11.
(embodiment 2)
Fig. 6 is the stereogram of the screw motor that relates to of expression embodiments of the invention 2.Fig. 7 is the mounting means of bearing anticreep plate is installed in a stereogram from expression to the retainer of same motor.Among Fig. 8, (A) expression is dissectd the cutaway view of state along A-A ' line among Fig. 7, (B) is the cutaway view that dissects state along B-B ' line among Fig. 7.Among Fig. 9, (A) be the vertical view of same bearing anticreep plate, (B) be the front view of same bearing anticreep plate, (C) be the left view of same bearing anticreep plate, (D) be the right view of same bearing anticreep plate, (E) being the upward view of same bearing anticreep plate, (F) is the rearview of same bearing anticreep plate.Among Figure 10, (A) be stereogram, (B) be the stereogram of observing same bearing anticreep plate from behind from the same bearing anticreep of top view plate.
Shown in Fig. 6～8, the screw motor of present embodiment comprises: motor axis of rotation 2 ' and, it forms screw mandrel (not shown) from motor body 1 ' outstanding; Bearing 4, attach it to by motor body 1 ' motor shell 6 ' an end surface supporting framework 3 ' on, and rotatably supporting rotating shaft 2 ' front end reducing diameter part 2a.
Motor body 1 ' be PM type (permanet magnet type) stepper motor, as shown in Figure 8, this motor body 1 ' have: the internal rotor that constitutes by the 1st magnet 5a and the 2nd magnet 5b of rotating shaft 2 ' and this rotating shaft 2 ' embedded; By the yoke (iron core) 7 that is fixed on motor body 6 ' interior (the outer mutually yoke 7aa of A, A mutually in the outer mutually yoke 7ba of yoke 7ab, B, B mutually in yoke 7bb) and the external stator that constitutes of coil 9 (A phase coil 9a, B phase coil 9b), this coil 9 is wound in yoke 7 in the insulating resin portion 8 that is installed in the formation coil rack.Between A phase coil 9a and B phase coil 9b, the terminal board 8a of insulating resin portion 8 from motor shell 6 ' otch 6a erect to the side, on this terminal board 8a, be provided for tying up 4 prism-shaped terminal pins P of the spiral end of coil 9.
By with rotating shaft 2 ' base end part be rotatably assorted thrust bearing 11 ' dead eye 11a in make rotating shaft 2 ' rotatably be supported.This thrust bearing 11 ' from axial embedding and insulating resin 8 integrally formed and from the retainer 12 of motor shell 6 ' outstanding ' bearing accepting hole 12a, by bearing anticreep plate (bearing plate) 13 ' prevent to come off to axially pushing reinforcing.
Here, rotating shaft 2 ' in, the diameter that forms the screw mandrel part is D
1, be D at the diameter of logical magnet 5a, the 5b part of motor body 1 ' interpolation
2, with thrust bearing 11 ' the diameter of the chimeric base end part of dead eye 11a be D
3, this rotating shaft 2 ' be to have D
1＞D
2＞D
3The multidiameter of relation.And, magnet 5a, 5b by accumulate at the bonding agent that forms concavity with side end separately the B of place be adhesively secured to rotating shaft 2 '.
In addition, as Fig. 9 and shown in Figure 10, bearing anticreep plate 13 ', have: the baseplate part 13a ' that covers rail portion 12b ', 12c ' by a metallic plate punch forming; Turn back bending at its edge and make bending free end U push thrust bearing 11 ' the bended plate spring sheet of end face median plane, being the cross section that forms by 2 bendings across a pair of rim of the left-right symmetric axle L of baseplate part 13a ' is " コ " font roughly, forms to have the sliding tray S that is used to insert guide part 12ba ', 12ca '
1, S
2The clamping rim W of portion
1, W
2At the middle body of baseplate part 13a ', cut and formed stop tab Q
1, Q
2, U places stop tab Q with the bending free end
1, Q
2Between.Stop tab Q
1, Q
2In the excessive strain of bending free end U and near baseplate part 13a ' time and thrust bearing 11 ' the end face butt.Guide part 12ba ', 12ca ' and the clamping rim W of portion
1, W
2Be configured for bearing anticreep plate 13 ' from retainer 12 ' radially insert this retainer 12 and the erecting device installed.
In addition, except that the clamping rim W of portion on the baseplate part 13a '
1, W
2Be folded back with the edge that turns back beyond the edge of bended plate spring sheet 13b ', and form restriction bearing anticreep plate 13 ' the retainer M of insertion depth.And, this bearing anticreep plate 13 ' a place form and the chimeric fastening hole H ' of fastening projection G.
The motor body 1 of this screw motor ' assembling the time, from axially with thrust bearing 11 ' embedding retainer 12 ' bearing accepting hole 12a after, as shown in Figure 7, with bearing anticreep plate 13 ' the clamping rim W of portion
1, W
2From retainer 12 ' radially (side) insert retainer 12 ' guide part 12ba ', 12ca '.In this insertion process, the bending free end U of bended plate spring sheet 13b ' stride across retainer 12 ' end face on guiding surface Z, because when striding across endless groove V and median plane elasticity butt, fastening hole H ' is chimeric with fastening projection G, thereby bending free end U is located in median plane.
The action effect of present embodiment is identical with embodiment 1, but also has following action effect.Because the leaf spring of axial thrust bearing 11 ' additional elastic force forms bended plate spring sheet 13b ', and its beam length is longer than the single-cantilever length of the plate spring sheet 13a of embodiment 1, and coefficient of elasticity is reduced, thereby can suppress the deviation of elasticity pressing force.
In addition, because bearing anticreep plate 13 ' have a stop tab Q
1, Q
2So when causing the excessive deformation of bended plate spring sheet 13b ' because of rapid axial force when starting etc. to rotating shaft 2 ' apply, can replace bended plate spring sheet 13b ' stop thrust bearing 11 ' end face, thereby the phenomenon that the elastic force that can suppress bended plate spring sheet 13b ' weakens improves durability.
In the screw motor of present embodiment, rotating shaft 2 ' in, the diameter that forms the screw mandrel part is D
1, be D at the diameter of logical magnet 5a, the 5b part of motor body 1 ' interpolation
2, with thrust bearing 11 ' the diameter of the chimeric base end part of dead eye 11a be D
3, because this rotating shaft 2 ' be to have D
1＞D
2＞D
3The multidiameter of relation, insert the diameter D of logical magnet segment
2Than the diameter D that forms the screw mandrel part
1Little, thus the micro motor that can realize making the external diameter of motor body to diminish.And, because the diameter D of end
3Than the diameter D that inserts logical magnet 5a, 5b part
2Little, so can suppress slippage loss on the dead eye 11a.And, because on the part of inserting logical magnet 5a, 5b, independently be provided with to devices spaced apart in the axial direction the 1st magnet 15a and with the 2nd magnet 5b of its out-phase, then can suppress the leakage field between the out-phase, thereby can realize the micro motor of high torque (HT).
And above-mentioned erecting device is not limited to the screw motor of present embodiment, also goes for fan motor or other motor.
Claims (12)
1. motor comprises: retainer, but it will constitute from axial embedding bearing accepting hole with the bearing of free rotation mode supporting motor drive shaft; Bearing plate, it has the elastic portion that is used for flexibly above-mentioned bearing being pushed in the axial direction reinforcing, and is installed on the above-mentioned retainer; It is characterized in that,
On above-mentioned retainer and above-mentioned bearing plate, have the slidingtype erecting device, this slidingtype erecting device is used for being installed to this retainer from radially this bearing plate being inserted of above-mentioned retainer.
2. motor according to claim 1 is characterized in that, above-mentioned slidingtype erecting device comprises: a pair of guide part that is parallel to each other, and it is formed on the end of above-mentioned retainer, and the axle center is placed therebetween radially extension; Accordingly can be with above-mentioned a pair of guide part along a pair of slot part of this guide part slip, it places above-mentioned elastic portion integrally formed with above-mentioned bearing plate therebetween.
3. motor according to claim 1 and 2 is characterized in that, above-mentioned elastic portion is to turn back bending and make its free end side push the bended plate spring sheet of above-mentioned bearing at the edge of above-mentioned bearing plate.
4. according to any described motor in the claim 1～3, it is characterized in that above-mentioned bearing plate has the stopper section of the amount of elastic deformation of the above-mentioned elastic portion of restriction.
5. motor according to claim 4 is characterized in that, above-mentioned stopper section is when the pressing part that is connected to above-mentioned bearing of above-mentioned elastic portion moves back because of elastic deformation keeps away, and stops the projection of above-mentioned bearing.
6. according to any described motor in the claim 1～3, it is characterized in that, have the location retainer on above-mentioned retainer and above-mentioned bearing plate, this location retainer limits the insertion depth with respect to above-mentioned retainer of above-mentioned bearing plate.
7. motor according to claim 6 is characterized in that, above-mentioned location retainer be at the edge of above-mentioned bearing plate integrally formed and with the bend of the edge portion butt of the end face side of above-mentioned retainer.
8. according to any described motor in the claim 1～7, it is characterized in that on above-mentioned retainer and above-mentioned bearing plate, having the fastening mechanism that stops this bearing plate to be extracted with respect to this retainer.
9. motor according to claim 8, it is characterized in that, above-mentioned fastening mechanism is: be formed at the fastening hole of above-mentioned bearing holder end-face and integrally formed and move the fastening hook that falls into above-mentioned fastening hole by inserting with respect to above-mentioned retainer of this bearing plate on above-mentioned bearing plate.
10. motor according to claim 8, it is characterized in that, above-mentioned fastening mechanism is: be formed at the fastening hole of above-mentioned bearing plate and integrally formed and move the projection that embeds above-mentioned fastening hole by the insertion with respect to this retainer of this bearing plate on the end face of above-mentioned retainer.
11. any described motor according in the claim 1～10 is characterized in that the resin portion of above-mentioned retainer and external stator side is integrally formed.
12. a screw motor is characterized in that, in any motor that is limited in claim 1～11, the said motor axle is to form screw mandrel from the outstanding part of motor body and constituting.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP374198/2005 | 2005-12-27 | ||
| JP2005374198 | 2005-12-27 | ||
| JP336721/2006 | 2006-12-14 | ||
| JP2006336721A JP2007202388A (en) | 2005-12-27 | 2006-12-14 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1992471A true CN1992471A (en) | 2007-07-04 |
| CN1992471B CN1992471B (en) | 2012-02-08 |
Family
ID=38456391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101714269A Expired - Fee Related CN1992471B (en) | 2005-12-27 | 2006-12-27 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007202388A (en) |
| CN (1) | CN1992471B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546952A (en) * | 2008-03-28 | 2009-09-30 | 日本电产三协株式会社 | Motor |
| CN108738256A (en) * | 2017-04-17 | 2018-11-02 | 阿自倍尔株式会社 | The installation constitution of electronic equipment |
| CN113703302A (en) * | 2020-05-21 | 2021-11-26 | 株式会社理光 | Developing device and image forming apparatus |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5323473B2 (en) * | 2008-12-26 | 2013-10-23 | 日本電産サンキョー株式会社 | motor |
| JP2010158106A (en) * | 2008-12-26 | 2010-07-15 | Nidec Sankyo Corp | Motor |
| JP5550463B2 (en) * | 2010-06-21 | 2014-07-16 | 日本電産サンキョー株式会社 | motor |
| JP5367897B2 (en) * | 2012-09-28 | 2013-12-11 | 日本電産サンキョー株式会社 | motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153340C (en) * | 1996-09-25 | 2004-06-09 | 株式会社三协精机制作所 | Step-by-step motor |
| KR100318827B1 (en) * | 1999-03-17 | 2002-01-04 | 이형도 | A stepping motor |
| JP3777290B2 (en) * | 2000-06-14 | 2006-05-24 | 日本電産サンキョー株式会社 | motor |
| JP3896253B2 (en) * | 2001-02-14 | 2007-03-22 | 日本電産サンキョー株式会社 | motor |
| JP4523783B2 (en) * | 2004-03-17 | 2010-08-11 | キヤノン電子株式会社 | Motor holding device |
| JP2005304111A (en) * | 2004-04-07 | 2005-10-27 | Mitsubishi Material Cmi Kk | Resilient supporting structure of rotor shaft |
-
2006
- 2006-12-14 JP JP2006336721A patent/JP2007202388A/en active Pending
- 2006-12-27 CN CN2006101714269A patent/CN1992471B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546952A (en) * | 2008-03-28 | 2009-09-30 | 日本电产三协株式会社 | Motor |
| CN108738256A (en) * | 2017-04-17 | 2018-11-02 | 阿自倍尔株式会社 | The installation constitution of electronic equipment |
| CN113703302A (en) * | 2020-05-21 | 2021-11-26 | 株式会社理光 | Developing device and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007202388A (en) | 2007-08-09 |
| CN1992471B (en) | 2012-02-08 |
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