CN209299025U - A kind of micro machine end cap fixed connection structure - Google Patents
A kind of micro machine end cap fixed connection structure Download PDFInfo
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- CN209299025U CN209299025U CN201821993388.XU CN201821993388U CN209299025U CN 209299025 U CN209299025 U CN 209299025U CN 201821993388 U CN201821993388 U CN 201821993388U CN 209299025 U CN209299025 U CN 209299025U
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- retaining ring
- end cap
- casing
- fastener
- fixed connection
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Abstract
A kind of micro machine end cap fixed connection structure, belongs to microelectromechanical structure technical field.Micro machine end cap fixed connection structure includes casing, drive end bearing bracket, rear end cap, preceding fastener, rear fastener, retaining ring；The inside of one or both ends in casing both ends is equipped with card slot, retaining ring is placed in the card slot, when the inside of one end in casing both ends is equipped with card slot, drive end bearing bracket is fixedly connected by preceding fastener or the rear fastener by retaining ring with casing, and rear end cap is fixedly connected by rear fastener or preceding fastener with casing；When being equipped with card slot on the inside of casing both ends, drive end bearing bracket is fixedly connected by preceding fastener by retaining ring with casing, and rear end cap is fixedly connected by rear fastener by retaining ring with casing.The utility model is not only easy for installation, but also does not need long spiro nail across iron core, and stator core material and space are fully used, can be with the better high efficiency motor of design performance.
Description
Technical field
The utility model microelectromechanical structure technical field more particularly to a kind of micro machine end cap fixed connection structure.
Background technique
Miniature compact formula circle motor is fixedly connected with mode, structural union usually as shown in Figure 1, 2: with long spiral shell
Drive end bearing bracket 5 ' and rear end cap 1 ' are fixedly connected by nail 2 ' inside motor with casing 3 '.This connection type long spiro nail will pass through stator
Iron core 4 ' occupies stator core space, and aperture or fluting (such as Fig. 3) are wanted on stator core, so that stator yoke magnetic circuit is influenced, this
Fixed connection structure is to sacrifice motor performance as cost, and the motor performance under same space and consumptive material can decline very much.Such as
Fruit motor is very long, and long spiro nail manufacture installation is also inconvenient.
Patent of invention CN201510532840.7 discloses direct current generator long spiro nail installation auxiliary fixing device, in background
Also the above-mentioned assembly method using long spiro nail is mentioned in technology, but is influenced stator yoke magnetic circuit not caused by this and proposed to solve
Scheme, but propose and a kind of installation auxiliary fixing device is proposed based on the long spiro nail, to improve the stability of assembly.
Utility model content
In view of the problems of the existing technology the utility model, proposes a kind of micro machine end cap fixed connection structure, solution
The prior art of having determined long spiro nail occupies stator core space, influences magnetic Circuit Design, reduces motor performance problem.
The utility model has the technical scheme that
The utility model proposes a kind of micro machine end cap fixed connection structure, including it is casing, drive end bearing bracket, rear end cap, preceding tight
Firmware, rear fastener, retaining ring；The inside of one or both ends in the casing both ends is equipped with card slot, and the retaining ring is placed in institute
It states in card slot, when the inside of one end in the casing both ends is equipped with card slot, the preceding fastener or the rear fastener are logical
Cross retaining ring and be fixedly connected with the drive end bearing bracket with the casing, it is described after fastener or the preceding fastener by the rear end cap with
The casing is fixedly connected；When being equipped with card slot on the inside of the casing both ends, the preceding fastener will be described by retaining ring
Drive end bearing bracket is fixedly connected with the casing, and the rear end cap is fixedly connected by the rear fastener by retaining ring with the casing.
Preferably, the preceding fastener or the rear fastener have certain length, so that the preceding fastener or institute
After stating rear fastener installation, the preceding fastener or the rear fastener are separated by a certain distance with iron core in motor.
Preferably, the internal side of shell is equipped with baffle at the circumference of close end；The casing end has to casing
The inner edge that open-ended center extends；Described in the space of the inner edge of the baffle and same casing end between the two is constituted
Card slot.
Preferably, the baffle is ring baffle.
Preferably, the retaining ring is open loop type retaining ring.
Preferably, the retaining ring is equipped with retaining ring threaded hole.
Preferably, the width of the retaining ring is to become narrow gradually from the middle part of retaining ring to both ends.
Preferably, the retaining ring is greater than in its quantity at annular opening equipped with retaining ring threaded hole, close to retaining ring
Middle part is equipped with the quantity of retaining ring threaded hole.
Preferably, the retaining ring has in the position that it opens up retaining ring threaded hole to the protrusion of retaining ring central protuberance.
Preferably, the retaining ring threaded hole is set to the mounting hole of the drive end bearing bracket or the rear end cap and casing assembly
Corresponding position.
The utility model has the following beneficial effects:
A kind of micro machine end cap fixed connection structure of the utility model, it is not only easy for installation, but also do not need long spiro nail and wear
Iron core is crossed, stator core material and space are fully used.In addition, using the electricity of the micro machine end cap fixed connection structure
Machine, without fluting, magnetic yoke width can be made narrow in the magnetic yoke portion of inner stator lamination structure, can be preferably high with design performance
Imitate motor.
Detailed description of the invention
Fig. 1 is prior art circle microelectromechanical structure schematic diagram；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the structural schematic diagram of micromotor stator punching under Fig. 1 the prior art structure；
Fig. 4 is a kind of micro machine end cap fixed connection structure schematic diagram of the utility model；
Fig. 5 is cross-sectional view of the Fig. 4 along the direction B-B；
Fig. 6 is the structural schematic diagram of Fig. 4 guide ring；
Fig. 7 is the structural schematic diagram of casing in a kind of micro machine end cap fixed connection structure of the utility model；
Fig. 8 is the structural representation of drive end bearing bracket or rear end cap in a kind of micro machine end cap fixed connection structure of the utility model
Figure；
Fig. 9 is the structural representation using the inner stator punching sheet of motor of the utility model micro machine end cap fixed connection structure
Figure.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Such as Fig. 4-8, a kind of micro machine end cap fixed connection structure of the utility model includes casing 3, drive end bearing bracket 1, rear end cap
5, preceding fastener 21, rear fastener 22, retaining ring 6.The inside of one or both ends in 3 both ends of casing is equipped with card slot 31.Institute
Card slot 31 is stated for accommodating retaining ring 6.Under an embodiment, when the inside of one end in 3 both ends of casing is equipped with card slot 31,
The casing 3 has one end of card slot 31, by retaining ring 6 that end cap and casing 3 is fixed using fastener；Without card slot 31
One end, directly end cap and casing 3 are fixed together using fastener.Such as, it is described when card slot 31 is set to the front end of casing 3
Drive end bearing bracket 1 is fixedly connected by preceding fastener 21 by retaining ring 6 with the casing 3, then the rear end of casing 3 directly passes through rear fastener
22 are fixedly connected with rear end cap 5；For another example, card slot 31 be set to casing 3 rear end when, it is described after fastener 22 by retaining ring 6 will after
End cap 5 is connect with casing 3, then the front end of the casing 3 directly passes through preceding fastener 21 and is fixedly connected with drive end bearing bracket 1 with casing 3.
Under yet other embodiments, when being equipped with card slot 31 on the inside of 3 both ends of casing, the preceding fastener 21 will by retaining ring 6
The drive end bearing bracket 1 is fixedly connected with the casing 3, and the rear fastener 22 passes through retaining ring 6 for the rear end cap 5 and the casing
3 are fixedly connected.The latter's embodiment connects more firm compared to the former embodiment.
Solves a root long screw through entire casing fixation side in the mode that the fixed end cap of fastener is respectively adopted in both ends
Ferroelectric core space caused by formula is occupied to influence the bad problem of motor performance.Further, the length of the preceding fastener 21
Unsuitable too long, the preceding fastener 21 or the rear fastener 22 have certain length, so that the preceding fastener 21 or described
After fastener 22 is installed afterwards, the preceding fastener 21 or the rear fastener 22 are separated by a certain distance with iron core in motor.Also
It says, the preceding fastener 21 and the rear fastener 22 will not touch iron core 4 in motor when it is assemblied in micro machine.It is described
Fastener can be screw, bolt etc..Preferably, the preceding fastener 21 and/or the rear fastener 22 are screw standard part.
It is customized in this way without special processing, so that it may use.
The card slot 31 can be opened up in 3 inner surface of casing.However under this mode, the required needs of retaining ring 6 are done greatly, are done width, are made
It obtains 6 part of retaining ring to be placed in card slot 31, card slot 31 is stretched out in part, and such fastener can pass through the retaining ring for stretching out 31 part of card slot
6 connect casing 3 with end cap.Fig. 7 shows another 31 structure of card slot.It is equipped at the circumference of close end on the inside of the casing 3
Baffle 32.3 end of casing has the inner edge 33 extended to the open-ended center of casing 3.The baffle 32 and same casing 3
The space of the inner edge 33 of end between the two constitutes the card slot 31.Under this example, required retaining ring 6 is wide without excessive,
Part can be made to be placed in card slot 31 and partially be passed through by fastener to fix end cap and casing 3, save material.In addition,
Since 3 end inner edge of casing, 33 upper surface is directly contacted with end cap, so that sealing stability wants example shown in Fig. 7 more after fastening
It is excellent.Wherein, the baffle 32 is ring baffle, so that card slot 31 is the slot with annular accommodating space.
The retaining ring 6 is open loop type retaining ring.Compared to closed loop retaining ring, open loop type retaining ring is easier to assemble, and retaining ring 6 is opened
Mouth is precisely matched in the card slot 31 of casing 3 for retaining ring 6 and provides adjustable space.The retaining ring 6 is equipped with retaining ring threaded hole 61,
The preceding fastener 21 or it is described after fastener 22 sequentially passes through the mounting hole of end cap, retaining ring threaded hole 61 consolidates end cap and casing
Surely it links together.The retaining ring threaded hole 61 is set to the installation that the drive end bearing bracket 1 or the rear end cap 5 and casing 3 assemble
The corresponding position in hole.In this way, can be fixed convenient for assembly.To avoid retaining ring 6 from opening up stress at retaining ring threaded hole 61 not at it
Enough, frangibility, the retaining ring 6 has in the position that it opens up retaining ring threaded hole 61 to the protrusion of 6 central protuberance of retaining ring, passes through increasing
Open up at 61 position of retaining ring threaded hole 6 width of retaining ring greatly to improve the stress herein of retaining ring 6.
The retaining ring 6 can be a retaining ring with clean width, however influence when in use in the presence of easily deflection, fracture etc.
The problem of 6 pot life of retaining ring.In order to improve the durability of retaining ring 6, the retaining ring 6 is designed as eccentric structure, the retaining ring 6
Width is to become narrow gradually from the middle part of retaining ring to both ends.The stress of retaining ring 6 under this structure, 6 wider width position of retaining ring is greater than width
Spend the stress of narrower region, it is preferable that can be greater than in the quantity that retaining ring threaded hole 61 is arranged in the retaining ring 6 at annular opening
The quantity of retaining ring threaded hole 61 is equipped in the middle part of retaining ring 6.The retaining ring 6 with 6 retaining ring threaded holes 61 is shown in Fig. 6,
Distributing position and quantity can be increased and decreased according to structural stress demand.It is incited somebody to action in Fig. 4,5 as it can be seen that passing through four fasteners outside end cap
End cap and casing 3 are fixed, and the mounting hole that fastener is passed through is uniformly and symmetrically distributed on end cap.It at this time can will be on retaining ring 6
Threaded hole is arranged 4, arrangement corresponding with position of mounting hole.When there is 6 retaining ring threaded holes 61, on end cap it can open two more
Mounting hole, or the retaining ring threaded hole 61 having more is fixed inside motor by other fasteners, it is not exposed to outside end cap.
When the retaining ring 6 is placed in the card slot 31, retaining ring 6 is constrained by top surface, the bottom surface of the card slot 31, retaining ring 6
Respectively with the top surface of card slot 31, bottom surface is inconsistent and is limited in card slot 31.In order to further ensure that it is described that retaining ring 6 is stable in
In card slot 31, the bottom surface of the card slot 31 can be made into an eccentric structure on diameter cross section, as will be in example shown in Fig. 7
Baffle 32 be made into the SIMULATION OF ECCENTRIC ANNULAR baffle on diameter cross section.In this way, under example shown in Fig. 7 33 bottom surface of inner edge and baffle 32 it is upper
Surface and retaining ring 6 are inconsistent, and retaining ring 6 and 31 bottom surface of card slot have interaction force, it is ensured that and retaining ring 6 can be stable in card slot 31,
The circular motion in diametric plane will not be done in card slot 31.Furthermore it is also possible to which the position of mounting hole and retaining ring threaded hole 61 is carried out
A little offset.Such as, eccentric track arrangement is pressed into multiple mounting holes arrangement position, equally, by multiple retaining ring threaded holes 61 arrangement position
It sets and arranges by eccentric track.Thus it is ensured that retaining ring 6 can be stable in card slot 31, the circumference in diametric plane will not be done in card slot 31
Movement.Although after retaining ring 6 is put into card slot 31, it is little that retaining ring 6 does the circular motion relationship in diametric plane in card slot 31,
Certain inconvenience can be caused to the installation of end cap.When the bottom surface of retaining ring 6 and card slot 31 has interaction force, retaining ring 6 is just
The circular motion in diametric plane will not be done in card slot 31, installed convenient for the end cap in later period, also added the stability of total.
The drive end bearing bracket 1 and the rear end cap 5 are all made of conventional design, as long as mounting hole and retaining ring threaded hole 61
Match.Fig. 9 shows the structure of drive end bearing bracket 1 or rear end cap 5, opens at its inner edge R with casing assembly in end cap bottom
Equipped with mounting hole 11 or 51.
Such as Fig. 9, using the motor of the utility model micro machine end cap fixed connection structure, the magnetic of inner stator lamination structure
Yoke portion does not slot, and magnetic yoke width can be made narrow, and stator core material is fully used, and space does not waste.
It should be understood by those skilled in the art that foregoing description and the embodiments of the present invention shown in the drawings are only used as
It illustrates and is not intended to limit the utility model.The purpose of this utility model completely effectively realizes.The function of the utility model
And structural principle shows and illustrates in embodiment, under without departing from the principle, the embodiments of the present invention can
To have any deformation or modification.
Claims (10)
1. a kind of micro machine end cap fixed connection structure, which is characterized in that including casing, drive end bearing bracket, rear end cap, preceding fastener,
Fastener, retaining ring afterwards；The inside of one or both ends in the casing both ends is equipped with card slot, and the retaining ring is placed in the card slot
Interior, when the inside of one end in the casing both ends is equipped with card slot, the preceding fastener or the rear fastener pass through retaining ring
The drive end bearing bracket is fixedly connected with the casing, it is described after fastener or the preceding fastener by the rear end cap and the machine
Shell is fixedly connected；When being equipped with card slot on the inside of the casing both ends, the preceding fastener passes through retaining ring for the drive end bearing bracket
It is fixedly connected with the casing, the rear end cap is fixedly connected by the rear fastener by retaining ring with the casing.
2. a kind of micro machine end cap fixed connection structure according to claim 1, which is characterized in that the preceding fastener
Or the rear fastener has certain length, so that after the preceding fastener or the rear fastener installation, the preceding fastener
Or the rear fastener is separated by a certain distance with iron core in motor.
3. a kind of micro machine end cap fixed connection structure according to claim 1, which is characterized in that the internal side of shell leans on
Baffle is equipped at the circumference of close end；The casing end has the inner edge extended to the open-ended center of casing；The baffle
The card slot is constituted with the space of the inner edge of same casing end between the two.
4. a kind of micro machine end cap fixed connection structure according to claim 3, which is characterized in that the baffle is annular
Baffle.
5. a kind of micro machine end cap fixed connection structure according to claim 1, which is characterized in that the retaining ring is open loop
Formula retaining ring.
6. a kind of micro machine end cap fixed connection structure according to claim 5, which is characterized in that the retaining ring is equipped with
Retaining ring threaded hole.
7. a kind of micro machine end cap fixed connection structure according to claim 5, which is characterized in that the width of the retaining ring
To be become narrow gradually from the middle part of retaining ring to both ends.
8. a kind of micro machine end cap fixed connection structure according to claim 7, which is characterized in that the retaining ring is leaned at it
The quantity that near-ring shape opening is equipped with retaining ring threaded hole is greater than, and the quantity of retaining ring threaded hole is equipped in the middle part of retaining ring.
9. a kind of micro machine end cap fixed connection structure according to claim 6 or 8, which is characterized in that the retaining ring exists
Its position for opening up retaining ring threaded hole has to the protrusion of retaining ring central protuberance.
10. a kind of micro machine end cap fixed connection structure according to claim 6 or 8, which is characterized in that the retaining ring spiral shell
Pit is set to the drive end bearing bracket or rear end cap position corresponding with the mounting hole that casing assembles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993388.XU CN209299025U (en) | 2018-11-30 | 2018-11-30 | A kind of micro machine end cap fixed connection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993388.XU CN209299025U (en) | 2018-11-30 | 2018-11-30 | A kind of micro machine end cap fixed connection structure |
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| CN209299025U true CN209299025U (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821993388.XU Active CN209299025U (en) | 2018-11-30 | 2018-11-30 | A kind of micro machine end cap fixed connection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347240A (en) * | 2018-11-30 | 2019-02-15 | 浙江德马科技股份有限公司 | Micromotor end cover fixed connection structure |
-
2018
- 2018-11-30 CN CN201821993388.XU patent/CN209299025U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347240A (en) * | 2018-11-30 | 2019-02-15 | 浙江德马科技股份有限公司 | Micromotor end cover fixed connection structure |
| CN109347240B (en) * | 2018-11-30 | 2024-02-02 | 德马科技集团股份有限公司 | Micro motor end cover fixed connection structure |
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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: 313023 shangqiang Industrial Park, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Dema Technology Group Co.,Ltd. Patentee after: Shanghai dema Logistics Technology Co., Ltd Address before: 313023 shangqiang Industrial Park, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG DAMON TECHNOLOGY Co.,Ltd. Patentee before: Shanghai dema Logistics Technology Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |