CN203278493U - External rotor motor bearing chamber seal structure - Google Patents
External rotor motor bearing chamber seal structure Download PDFInfo
- Publication number
- CN203278493U CN203278493U CN 201320199330 CN201320199330U CN203278493U CN 203278493 U CN203278493 U CN 203278493U CN 201320199330 CN201320199330 CN 201320199330 CN 201320199330 U CN201320199330 U CN 201320199330U CN 203278493 U CN203278493 U CN 203278493U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- dust
- external rotor
- proof cover
- end cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an external rotor motor bearing chamber seal structure comprising an end cover and a dust-proof cover, wherein a concentric groove is designed at the outer edge of the end cover, a sealing ring is embedded in the concentric groove, the dust-proof cover is provided with a bulge which is arranged on a face in contact with the sealing ring, and the dust-proof cover and the sealing ring are extruded and then form a sealing fit. The beneficial effects of the external rotor motor bearing chamber seal structure are that the bulge is arranged on the dust-proof cover through punching operation, the sealing ring is made of silica gel and is elastic, tightness can be guaranteed when the dust-proof cover cooperates with the end cover, the outer edge of the bulge matches with the end cover and therefore the wall of the groove can be clamped effectively, and backward skid can be prevented. Because the dust-proof cover and the end cover are metal products, mutual influence caused by heat expansion and cold contraction is not large, tightness can be maintained when the dust-proof cover cooperates with the end cover in the radial direction, and elastic compaction is realized in the axial direction; as long as the silica gel ring is not detached, tightness can be maintained even if the silica gel ring loses effectiveness for a long time.
Description
Technical field
The utility model relates to a kind of sealed bearing housing structure, and more specifically, it relates to a kind of sealed bearing housing structure of external rotor electric machine.
Background technology
The bearing chamber of external rotor electric machine is a well shape structure under the plane, needs permanent water-resistant sun-proof (in case having water to immerse bearing soon with stuck).Prior art adopts plastic dust lid structure, and injection moulding dust cap circularity is bad, and the cover upper section is that circular silica gel ring coordinates with the bearing chamber periphery, the bearing chamber circumferential size is had relatively high expectations, and can aging coming off after long-term Exposure to Sunlight.There are the iron of employing or aluminum dustproof cover structure to add glue sealing, but uncontrollable with glue quantity in production process, easily flow down the immersion bearing, cause bearing stuck.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of rational in infrastructure, the sealed bearing housing structure of the external rotor electric machine of good airproof performance.
The purpose of this utility model is achieved through the following technical solutions.The sealed bearing housing structure of this external rotor electric machine, comprise end cap and dust cap, be designed with a concentric grooves in described end cap outer, be embedded with sealing ring, face with the sealing ring contact on described dust cap is provided with projection, and described dust cap coordinates with the sealing ring crush seal.
As preferably: the projection on described dust cap and sealing ring extruding closely cooperate.
As preferably: projection and groove on described dust cap connect and fix.
As preferably: described sealing ring is that silica gel is made.
As preferably: described sealing ring is antiultraviolet glue.
The beneficial effects of the utility model are: the dust cap upper punch has projection, and sealing ring adopts silica gel to make, and is flexible, and both cooperations can guarantee closely, simultaneously should projection the outer play the end cap cooperation, effectively block groove walls, prevent back skating.Because both are metallic article, expand with heat and contract with cold that it is little to influence each other, radial fit can keep closely all the time, axially is the elasticity compacting, otherwise dismantle, it is tight that the long-time inefficacy of silica gel ring still can keep.
Description of drawings
Fig. 1 is external rotor electric machine bearing chamber part front view;
Fig. 2 is external rotor electric machine bearing chamber part end view;
Fig. 3 is the A-A cutaway view of Fig. 1;
Fig. 4 is the B section enlarged drawing of Fig. 3;
Description of reference numerals: sealing ring 1, groove 2, end cap 3, dust cap 4, projection 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.Although the utility model is described in connection with preferred embodiment, should know, do not represent that the utility model is limited in described embodiment.On the contrary, the utility model will be contained alternative, modified model and the equivalent in the scope of the present utility model that can be included in attached claims restriction.
As shown in Figures 1 to 4, the sealed bearing housing structure of this external rotor electric machine comprises end cap 3 and dust cap 4, is designed with a concentric grooves 2 in described end cap 3 outers, is embedded with sealing ring 1, and described dust cap 4 coordinates with sealing ring 1 crush seal.Face with sealing ring 1 contact on described dust cap 4 is provided with projection 5.Projection 5 on described dust cap 4 and sealing ring 1 extruding closely cooperate.Projection 5 and groove 2 on described dust cap 4 connect and fix.Described sealing ring 1 is made for silica gel.Described sealing ring 1 is antiultraviolet glue.
This structure adopts the exert oneself mode of crush seal circle of dust cap, adopts frock can easily dust cap 4 be depressed by hand in production to join tight.End cap 3 bearing chamber upper port outers are designed with a concentric grooves 2, sealing ring 1 is embedded, the above adopts iron zinc-plated or stamping forming dust cap 4 extruding of aluminium alloy, dust cap 4 upper punches have projection 5, and sealing ring 1 adopts silica gel to make, and is flexible, two all coordinate and can guarantee closely, simultaneously should projection 5 outers play end cap 3 and coordinate, effectively block groove 2 walls, prevent back skating.Because both are metallic article, expand with heat and contract with cold that it is little to influence each other, radial fit can keep closely all the time, axially is the elasticity compacting, otherwise dismantle, it is tight that the long-time inefficacy of silica gel ring still can keep.
In this hermetically-sealed construction, sealing ring 1 also can be used special-purpose antiultraviolet glue instead, and during operation, dehydration is difficult for directly overflowing in groove, and effect is consistent.
Claims (5)
1. the sealed bearing housing structure of an external rotor electric machine, comprise end cap (3) and dust cap (4), it is characterized in that: be designed with a concentric grooves (2) in described end cap (3) outer, be embedded with sealing ring (1), the face of upper same sealing ring (1) contact of described dust cap (4) is provided with projection (5), and the same sealing ring of described dust cap (4) (1) crush seal coordinates.
2. the sealed bearing housing structure of external rotor electric machine according to claim 1 is characterized in that: the projection (5) on described dust cap (4) and sealing ring (1) extruding closely cooperate.
3. the sealed bearing housing structure of external rotor electric machine according to claim 1, it is characterized in that: projection (5) and groove (2) on described dust cap (4) connect and fix.
4. the sealed bearing housing structure of external rotor electric machine according to claim 1, it is characterized in that: described sealing ring (1) is made for silica gel.
5. the sealed bearing housing structure of external rotor electric machine according to claim 1, it is characterized in that: described sealing ring (1) is antiultraviolet glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199330 CN203278493U (en) | 2013-04-19 | 2013-04-19 | External rotor motor bearing chamber seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199330 CN203278493U (en) | 2013-04-19 | 2013-04-19 | External rotor motor bearing chamber seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278493U true CN203278493U (en) | 2013-11-06 |
Family
ID=49508820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320199330 Expired - Fee Related CN203278493U (en) | 2013-04-19 | 2013-04-19 | External rotor motor bearing chamber seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707245A (en) * | 2023-06-02 | 2023-09-05 | 新盛世机电制品(中山)有限公司 | Assembling method applied to magnetic isolation outer rotor motor of ceiling fan |
-
2013
- 2013-04-19 CN CN 201320199330 patent/CN203278493U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707245A (en) * | 2023-06-02 | 2023-09-05 | 新盛世机电制品(中山)有限公司 | Assembling method applied to magnetic isolation outer rotor motor of ceiling fan |
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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: 20131106 Termination date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |