CN201947138U - Explosion-proof type three-phase asynchronous motor for fan - Google Patents
Explosion-proof type three-phase asynchronous motor for fan Download PDFInfo
- Publication number
- CN201947138U CN201947138U CN2011200401973U CN201120040197U CN201947138U CN 201947138 U CN201947138 U CN 201947138U CN 2011200401973 U CN2011200401973 U CN 2011200401973U CN 201120040197 U CN201120040197 U CN 201120040197U CN 201947138 U CN201947138 U CN 201947138U
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- China
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- rear end
- end cap
- wire connection
- connection cavity
- end cover
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- Expired - Fee Related
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Abstract
The utility model discloses an explosion-proof type three-phase asynchronous motor for a fan, which comprises an enclosure, a front end cover matched with a front port of the enclosure, a rear end cover matched with a rear port of the enclosure, and a wiring cover fixedly connected with the rear end cover, wherein the front end cover, the rear end cover and the enclosure form a main cavity; and the rear end cover and the wiring cover form a wiring cavity. A through hole on the rear end cover, which is connected with the main cavity and the wiring cavity, is filled and blocked by a casting and sealing agent, so that the wiring cavity and the main cavity become two separate cavities, further the phenomenon that the explosion pressure is overlapped because an explosive gas mixture is ignited inside the motor is eliminated, the waterproof and dustproof levels of the integral motor can be improved, and the explosion-proof type three-phase asynchronous motor can be applied to work conditions with severer environments.
Description
Technical field
The utility model belongs to the design of electrical motor technical field, is specifically related to a kind of blower fan flame-proof type threephase asynchronous machine.
Background technology
At present domestic blower fan is through hole connection by rear end cap boring or casting with main chamber in the flame-proof type threephase asynchronous machine and wire connection cavity.As everyone knows, build-up of pressure overlapping phenomenon when complicated structure may be blasted in inside, that is to say that (as the through hole of rear end cap boring or casting) sometimes can produce and exceed several times pressure than the blast pressure under the normal condition at certain position of flameproof enclosure inside.If, just might wreck according to the flameproof enclosure that designs under the reference condition so at the inner blast pressure overlapping phenomenon that produces of flameproof enclosure.
Summary of the invention
The utility model provides a kind of blower fan flame-proof type threephase asynchronous machine, by watering the envelope agent main chamber and wire connection cavity is isolated, and has eliminated the blast pressure overlapping phenomenon.
A kind of blower fan flame-proof type threephase asynchronous machine, comprise casing, the front end housing that cooperates with the casing front port, rear end cap that cooperates with the casing rear end mouth and the link cover of FIG of fixedlying connected with rear end cap, described front end housing, rear end cap and casing constitute main chamber, are provided with stator and rotor in the described main chamber; Described rear end cap and link cover of FIG constitute wire connection cavity, and described rear end cap is equipped with several binding posts on a side of wire connection cavity.
Described rear end cap has a groove towards a side of wire connection cavity, the bottom of described groove is provided with through hole, be provided with cover plate in the described groove with several line holes, several line holes on the described cover plate are communicated with described through hole, the lead-in wire of the stator in the described main chamber is worn to wire connection cavity by the through hole of bottom portion of groove and the line hole on the cover plate, link to each other with several binding posts in the wire connection cavity, fill in the described groove and water the envelope agent.
In the optimized technical scheme, the described mixture that waters envelope agent employing based on epoxy resin.
In the optimized technical scheme, described rear end cap is equipped with three binding posts on a side of wire connection cavity.
The utility model is filled the through hole that stops up on the rear end cap by watering the envelope agent, after a period of time solidifies, make wire connection cavity and main chamber become two independently cavitys, thereby eliminated motor internal because of lighting the blast pressure overlapping phenomenon that explosive gas mixture produces, also improved the water proof and dust proof rank of motor integral body, made it to go in the more abominable operating mode of environment.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the utility model flame-proof type threephase asynchronous machine.
Wherein: 1. rotor 2. front end housings 3. casings 4. rear end caps 5. cover plates 6. lead-in wires 7. water envelope agent 8. link cover of FIG 9. main chamber 10. wire connection cavities, 11. stators, 12. binding posts.
Embodiment
In order more specifically to describe the utility model, the technical solution of the utility model is elaborated below in conjunction with the drawings and the specific embodiments.
A kind of blower fan flame-proof type threephase asynchronous machine, comprise casing 3, the front end housing 2 that cooperates with casing 3 front ports, rear end cap 4 that cooperates with casing 3 rear ports and the link cover of FIG 8 of fixedlying connected with rear end cap 4, wherein front end housing 2, rear end cap 4 and casing 3 constitute main chamber 9, are provided with stator 11 and rotor 1 in the main chamber 9; Rear end cap 4 and link cover of FIG 8 constitute wire connection cavity 10, and rear end cap 4 is equipped with two binding posts 12 on a side of wire connection cavity 10.
The utility model meets " GB3836.1-2000 explosive gas atmosphere electrical installation, part 1: general requirement ", " GB3836.2-2000 explosive gas atmosphere electrical installation, part 2: flame-proof type " d " " and " GB3836.9-2006 explosive gas atmosphere electrical installation, the 9th part: pouring type " m " " standard.
Through hole on the rear end cap 4 of the present utility model changes into by watering the blind hole that envelope agent 7 is filled; eliminated the blast pressure overlapping phenomenon; also improved the water proof and dust proof rank of motor integral body; make it to go in the more abominable operating mode of environment; technological improvement of the present utility model has greatly improved the flame proof grade of motor; thereby the normal operation of protection peripheral equipment is for the flame proof effect of explosion-proof motor provides safety curtain more efficiently.
Claims (2)
1. blower fan flame-proof type threephase asynchronous machine, comprise casing, the front end housing that cooperates with the casing front port, rear end cap that cooperates with the casing rear end mouth and the link cover of FIG of fixedlying connected with rear end cap, described front end housing, rear end cap and casing constitute main chamber, are provided with stator and rotor in the described main chamber; Described rear end cap and link cover of FIG constitute wire connection cavity, and described rear end cap is equipped with several binding posts on a side of wire connection cavity, it is characterized in that:
Described rear end cap has a groove towards a side of wire connection cavity, the bottom of described groove is provided with through hole, be provided with cover plate in the described groove with several line holes, several line holes on the described cover plate are communicated with described through hole, the lead-in wire of the stator in the described main chamber is worn to wire connection cavity by the through hole of bottom portion of groove and the line hole on the cover plate, link to each other with several binding posts in the wire connection cavity, fill in the described groove and water the envelope agent.
2. blower fan flame-proof type threephase asynchronous machine according to claim 1 is characterized in that: described rear end cap is equipped with three binding posts on a side of wire connection cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200401973U CN201947138U (en) | 2011-02-16 | 2011-02-16 | Explosion-proof type three-phase asynchronous motor for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200401973U CN201947138U (en) | 2011-02-16 | 2011-02-16 | Explosion-proof type three-phase asynchronous motor for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201947138U true CN201947138U (en) | 2011-08-24 |
Family
ID=44474474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200401973U Expired - Fee Related CN201947138U (en) | 2011-02-16 | 2011-02-16 | Explosion-proof type three-phase asynchronous motor for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201947138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595207A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor for coal mining machine pump |
| CN115189503A (en) * | 2022-09-07 | 2022-10-14 | 苏州特种电机厂有限公司 | Explosion-proof type three-phase asynchronous motor |
-
2011
- 2011-02-16 CN CN2011200401973U patent/CN201947138U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595207A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor for coal mining machine pump |
| CN115189503A (en) * | 2022-09-07 | 2022-10-14 | 苏州特种电机厂有限公司 | Explosion-proof type three-phase asynchronous motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20170216 |