CN212643082U - Inner rotor water-cooling water pump motor seal structure - Google Patents
Inner rotor water-cooling water pump motor seal structure Download PDFInfo
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- CN212643082U CN212643082U CN202020769769.0U CN202020769769U CN212643082U CN 212643082 U CN212643082 U CN 212643082U CN 202020769769 U CN202020769769 U CN 202020769769U CN 212643082 U CN212643082 U CN 212643082U
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Abstract
The utility model discloses an inner rotor water-cooling water pump motor seal structure, including the motor main part, the pump body is installed to the motor main part tip, stator chamber and rotor chamber have respectively in the motor main part, the stator is installed to the stator intracavity, the rotor is installed to the rotor intracavity, the rotor is connected with the impeller that sets up in the pump body through the pivot, be provided with the housing with stator chamber and rotor chamber isolation in the motor main part, be provided with the plate sleeve between the motor main part and the pump body, the plate sleeve overlaps and forms the step form with the housing tip, the pump body is compressed tightly in the motor main part tip with plate sleeve and housing through the sealing washer. In the inner rotor water-cooling water pump motor sealing structure, one surface of the sealing ring seals the pump body surface, and the other surface of the sealing ring seals the sleeve disc and the shielding sleeve respectively, so that a path for high-pressure water to permeate into the stator cavity is blocked, a good sealing effect is achieved, a stator filling and sealing process can be omitted, the production process is simplified, the production efficiency is improved, and the rework cost of the stator is reduced.
Description
Technical Field
The utility model relates to a motor seal structure, especially an inner rotor water-cooling water pump motor seal structure.
Background
The sealing of the water-cooled motor stator is an important process, and the sealing effect is directly related to the use safety and the performance stability of the product. In the working process of the water pump, high-pressure water in one part of the pump body enters the rotor cavity along the shaft hole of the rotating shaft, and high-pressure water in the other part of the pump body enters the rotor cavity along the gap between the sleeve disc and the rotating shaft. If the sealing effect of the stator is not good, high-pressure water in the rotor cavity permeates into the stator cavity along a gap between the sleeve disc and the shielding sleeve, the insulation of the motor stator can be damaged, and the water pump fault is caused. In order to solve the sealing problem of the inner rotor water-cooled motor, a stator winding potting process is mostly adopted in the prior art, the manufacturing process is complex in steps, the production efficiency is low, and the rework cost of the stator is high.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an inner rotor water-cooling water pump motor seal structure can be effectively sealed with the stator to improve production efficiency, reduce the stator cost of doing over again.
In order to solve the technical problem, the utility model discloses an inner rotor water-cooling water pump motor seal structure, including motor main body, the pump body is installed to motor main body tip, has stator chamber and rotor chamber in the motor main body respectively, and the stator is installed to the stator intracavity, and the rotor is installed to the rotor intracavity, and the rotor is connected with the impeller that sets up in the pump body through the pivot, be provided with the housing with stator chamber and rotor chamber isolation in the motor main body, motor main body with be provided with the cover dish between the pump body, the cover dish with the housing end overlaps and forms the step form, the pump body will through the sealing washer the cover dish is fixed in motor main body tip with the housing pressure.
The outer side of the sealing ring is a plane correspondingly matched with the pump body, the inner side of the sealing ring is provided with a first step surface and a second step surface which are respectively correspondingly matched with the shielding sleeve and the sleeve disc, so that the sealing ring can be well matched with the pump body, the shielding sleeve and the sleeve disc, and the sealing effect is better.
The ratio of the width dimension of the first step surface to the width dimension of the second step surface is 0.3-0.7, so that the sealing ring is more stably installed, and the sealing effect is further improved.
The utility model has the advantages that: in the inner rotor water-cooling water pump motor sealing structure, the sleeve disc and the shielding sleeve are fixedly pressed on the end part of the motor main body through the pump body, one surface of the sealing ring seals the surface of the pump body, and the other surface of the sealing ring seals the sleeve disc and the shielding sleeve respectively, so that a path for high-pressure water to permeate into the stator cavity is blocked, a good sealing effect is achieved, a stator encapsulating process can be avoided, the production process is simplified, the production efficiency is improved, and the rework cost of the stator is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged view of a structure a in fig. 1.
Detailed Description
Referring to fig. 1 and 2, the inner rotor water-cooling water pump motor sealing structure of this embodiment includes a motor main body 1, a pump body 2 is installed at the end of the motor main body 1, a stator cavity 11 and a rotor cavity 12 are respectively arranged in the motor main body 1, a stator 3 is installed in the stator cavity 11, a rotor 4 is installed in the rotor cavity 12, the rotor 4 is connected with an impeller 6 arranged in the pump body 2 through a rotating shaft 5, a shielding sleeve 7 for isolating the stator cavity 11 from the rotor cavity 12 is arranged in the motor main body 1, a sleeve disc 8 is arranged between the motor main body 1 and the pump body 2, the sleeve disc 8 overlaps with the end of the shielding sleeve 7 and forms a step shape, and the pump body 2 compresses the sleeve disc 8 and the shielding sleeve 7 through a sealing ring.
In this embodiment, the outer side of the seal ring 9 is a flat surface 91 corresponding to the pump body 2, and the inner side of the seal ring 9 has a first step surface 92 and a second step surface 93 corresponding to the shielding sleeve 7 and the sleeve disk 8, respectively. The ratio of the width dimension of the first step surface 92 to the second step surface 93 is 0.3 to 0.7.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides an inner rotor water-cooling water pump motor seal structure, includes motor body, and the pump body is installed to motor body tip, has stator cavity and rotor cavity in the motor body respectively, and the stator is installed to the stator cavity, and the rotor is installed to the rotor cavity, and the rotor is connected with the impeller that sets up in the pump body through the pivot, its characterized in that: the motor is characterized in that a shielding sleeve for isolating the stator cavity from the rotor cavity is arranged in the motor body, a sleeve disc is arranged between the motor body and the pump body, the sleeve disc is overlapped with the end part of the shielding sleeve to form a step shape, and the pump body is fixedly pressed on the end part of the motor body through a sealing ring.
2. The inner rotor water-cooled pump motor sealing structure of claim 1, characterized in that: the outer side of the sealing ring is a plane correspondingly matched with the pump body, and the inner side of the sealing ring is provided with a first step surface and a second step surface which are correspondingly matched with the shielding sleeve and the sleeve disc respectively.
3. The inner rotor water-cooled pump motor sealing structure of claim 2, characterized in that: the width dimension ratio of the first step surface to the second step surface is 0.3-0.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020769769.0U CN212643082U (en) | 2020-05-11 | 2020-05-11 | Inner rotor water-cooling water pump motor seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020769769.0U CN212643082U (en) | 2020-05-11 | 2020-05-11 | Inner rotor water-cooling water pump motor seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212643082U true CN212643082U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020769769.0U Active CN212643082U (en) | 2020-05-11 | 2020-05-11 | Inner rotor water-cooling water pump motor seal structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN212643082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726041A (en) * | 2021-11-03 | 2021-11-30 | 北京中科科仪股份有限公司 | Molecular pump motor and manufacturing method |
-
2020
- 2020-05-11 CN CN202020769769.0U patent/CN212643082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113726041A (en) * | 2021-11-03 | 2021-11-30 | 北京中科科仪股份有限公司 | Molecular pump motor and manufacturing method |
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