CN203674849U - Rear cover of office permanent-magnetic dc motor - Google Patents
Rear cover of office permanent-magnetic dc motor Download PDFInfo
- Publication number
- CN203674849U CN203674849U CN201320889412.6U CN201320889412U CN203674849U CN 203674849 U CN203674849 U CN 203674849U CN 201320889412 U CN201320889412 U CN 201320889412U CN 203674849 U CN203674849 U CN 203674849U
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- Prior art keywords
- motor
- base plate
- rear cover
- office
- permanent magnet
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- Expired - Fee Related
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Abstract
The utility model discloses a rear cover of an office permanent-magnetic dc motor. The rear cover comprises a rear cover body composed of a shaft chamber and a base plate, convex ribs I are arranged around the inner wall of the shaft chamber at the same interface, n inclined reinforcing rib plates are separately arranged at the outer wall of the shaft chamber and the outer side of the base plate, n represents an even number, centers of the shaft chamber and the base plate are provided with a shaft hole for installing a motor shaft, and multiple convex ribs II which match front edges of a casing are arranged on the base plate. The rear cover of the utility model is prepared by once injection molding from a plastic material, the sizes of the shaft chamber and the front edges require no additional processing, the processing cost is reduced, the production period is shortened, use of non ferrous metal is reduced, and resources are saved.
Description
Technical field
The utility model relates to design of electrical motor manufacturing technology field, is specifically related to a kind of office permanent magnet DC motor bonnet.
Background technology
At present, permanent magnet DC motor is widely used in the various occasions such as various office equipment, plant equipment and household electrical appliance.Back end cover for motor of the prior art, it is generally and covers shape, adopts the metal materials such as cast iron, aluminium to make.In actual manufacture process, first need to cast out end cap blank, and then through manufacturing procedures such as cutting, polishing, borings, then by manual calibration precision, finally complete finished product.Therefore, this end cap exists that parts are many, processed complex, assembling is loaded down with trivial details, recruitment is many, error is large, cost is high, and to shortcomings such as processing staff have higher requirements.In addition, because finished product material is metal, its weight is heavier, and overall process is by manual operation, easily because error causes greatly finished product defective and scrap waste resource.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, in guaranteeing to meet motor user demand, provide a kind of reasonable in design, cost is low, can save the office permanent magnet DC motor bonnet of nonferrous metal resource.
The technical solution adopted in the utility model is such:
Permanent magnet DC motor bonnet is used in a kind of office, comprises the motor rear cover body 1 being made up of an axle chamber 3 and base plate 2, and described axle chamber 3 inwalls are equidistantly equipped with convex tendon I5, and described axle chamber 3 outer walls and base plate 2 outsides are interval with the oblique deep floor 7 of even number; The center of described axle chamber 3 and base plate 2 is provided with the axis hole 4 of a mounted motor axle, and described base plate 2 is provided with some convex tendon II6 that match with casing seam.
As preferably, the central axes of the central axis of described motor shaft and motor rear cover body 1.
As preferably, described deep floor 7 is symmetrical arranged around described axis hole 4.
As preferably, the bearing interference fits on convex tendon I5 and the motor shaft of described axle chamber 3, the convex tendon II6 on base plate 2 and casing seam matched in clearance.
As preferably, described motor rear cover body 1 is plastic material single injection-molded member.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, the utility model adopts plastic material single injection-molded structure, makes axle chamber, seam equidimension without processing separately, has both saved processing charges and has shortened the production cycle, has reduced again the use of non-ferrous metal, economizes on resources.
2, the utility model carries out reasonable structure design according to material behavior, and the design of mold cavity Sizes, directly passes through mold injection molding, axle chamber and the form and position tolerance that coordinates seam are guaranteed, reduced caused by processing defective and scrapped, having made motor performance more stable, consistency is better.
Accompanying drawing explanation
Fig. 1 is vertical view of the present utility model;
Fig. 2 is I part enlarged diagram in Fig. 1;
Fig. 3 is left side of the present utility model stereogram;
Fig. 4 is right perspective view of the present utility model;
Mark in figure: 1-motor rear cover body, 2-base plate, 3-axle chamber, 4-axis hole, 5-convex tendon I, 6-convex tendon II, 7-deep floor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
It is main that office permanent magnet DC motor mostly is small-power, according to this feature, existing motor is carried out to temperature rise test, and the temperature rise of result of the test permanent magnet DC motor bonnet is very low, just can meet instructions for use by plastic end cover.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, permanent magnet DC motor bonnet is used in a kind of office, comprises the motor rear cover body 1 being made up of an axle chamber 3 and base plate 2, and described axle chamber 3 inwalls are equidistantly equipped with convex tendon I5, described axle chamber 3 outer walls and base plate 2 outsides, be interval with the oblique deep floor 7 of even number; The center of described axle chamber 3 and base plate 2 is provided with the axis hole 4 of a mounted motor axle, and described base plate 2 is provided with some convex tendon II6 that match with casing seam.
The central axes of the central axis of described motor shaft and motor rear cover body 1; Described deep floor 7 is symmetrical arranged around described axis hole 4; Bearing interference fits on convex tendon I5 and the motor shaft of described axle chamber 3, the convex tendon II6 on base plate 2 and casing seam matched in clearance; Described motor rear cover body 1 is plastic material single injection-molded member.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. an office permanent magnet DC motor bonnet, comprise the motor rear cover body (1) being formed by an axle chamber (3) and base plate (2), it is characterized in that, described axle chamber (3) inwall is equidistantly equipped with convex tendon I (5), described axle chamber (3) outer wall and base plate (2) outside, be interval with the oblique deep floor of even number (7); The center of described axle chamber (3) and base plate (2) is provided with the axis hole (4) of a mounted motor axle, and described base plate (2) is provided with some convex tendon II (6) that match with casing seam.
2. permanent magnet DC motor bonnet is used in a kind of office according to claim 1, it is characterized in that the central axes of the central axis of described motor shaft and motor rear cover body (1).
3. permanent magnet DC motor bonnet is used in a kind of office according to claim 1, it is characterized in that, described deep floor (7) is symmetrical arranged around described axis hole (4).
4. a kind of office permanent magnet DC motor bonnet according to claim 1, it is characterized in that, bearing interference fits on the convex tendon I (5) of described axle chamber (3) and motor shaft, the convex tendon II (6) on base plate (2) and casing seam matched in clearance.
5. permanent magnet DC motor bonnet is used in a kind of office according to claim 1, it is characterized in that, described motor rear cover body (1) is plastic material single injection-molded member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889412.6U CN203674849U (en) | 2013-12-30 | 2013-12-30 | Rear cover of office permanent-magnetic dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889412.6U CN203674849U (en) | 2013-12-30 | 2013-12-30 | Rear cover of office permanent-magnetic dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674849U true CN203674849U (en) | 2014-06-25 |
Family
ID=50971100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889412.6U Expired - Fee Related CN203674849U (en) | 2013-12-30 | 2013-12-30 | Rear cover of office permanent-magnetic dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515010A (en) * | 2016-12-30 | 2017-03-22 | 湖州小蜜蜂科技有限公司 | Back cover structure of 3D printing pen |
-
2013
- 2013-12-30 CN CN201320889412.6U patent/CN203674849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515010A (en) * | 2016-12-30 | 2017-03-22 | 湖州小蜜蜂科技有限公司 | Back cover structure of 3D printing pen |
| CN106515010B (en) * | 2016-12-30 | 2019-02-05 | 湖州小蜜蜂科技有限公司 | The rear cover structure of 3D printing pen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |