CN209786925U - motor air-tight device - Google Patents

Abstract

The utility model discloses a motor airtight device, include: the shell is provided with an outer side face and an inner side face, the airtight cover body is arranged on the outer side face, an airtight isolation space is formed on the outer side face, and the sleeve is arranged on the inner side face and communicated with the airtight isolation space and the machine body. The utility model discloses can supply the motor to set up within the airtight cover body and lie in airtight isolated space, the airtight cover body is airtight state with the casing under, the power output shaft of motor no longer need rely on the bearing seal in order to prevent external gas infiltration organism. Therefore, the power output shaft and the shell have no friction, no dust is generated, and no shaft seal is consumed.

Description

Motor air-tight device

Technical Field

The present invention relates to an air-tight device, and more particularly, to an air-tight device for a motor.

Background

The motor generates heat energy during operation. In order to remove heat energy from the motor, the motor is generally disposed outside the working machine body to cool the motor. However, in the situation where the working machine body needs to be airtight, in order to prevent the gas from flowing into the working machine body along with the power output shaft of the motor, a shaft seal is conventionally used to be sleeved on the periphery of the power output shaft to prevent the gas from permeating as much as possible. However, the shaft seal has a limited airtight effect, and the power output shaft and the shaft seal are worn during rotation and vibration, so that not only the shaft seal needs to be replaced periodically, but also dust generated by the worn shaft seal is harmful to a working machine body.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve all kinds of problems of well-known airtight device, provide a motor airtight device.

To achieve the above and other objects, the present invention provides a motor air-tight device, which comprises: a housing having an outer side and an inner side; an airtight cover body arranged on the outer side surface to form an airtight isolation space on the outer side surface; and the sleeve is arranged on the inner side surface and communicated with the airtight isolated space and the machine body.

Optionally, the air-tight isolated space further comprises a motor disposed in the air-tight isolated space, the motor having a power output shaft, the power output shaft penetrating through the housing into the body through the sleeve.

Optionally, the airtight enclosure is provided with cooling holes.

Optionally, the gas-tight enclosure further comprises a water-cooling member disposed in the gas-tight enclosure.

Optionally, the air-tight cover further comprises a temperature monitoring component arranged in the air-tight cover.

Optionally, an airtight member is further included, and is disposed between the airtight enclosure and the housing.

Optionally, an airtight member is further included, disposed between the sleeve and the housing.

Optionally, the portable electronic device further comprises a supporting member disposed between the housing and the body.

Therefore, compared with the prior art, the motor air-tight device of the utility model does not need to use the shaft seal, reduces the replacement of the components and the loss cost, and does not produce dust.

For a further understanding of the nature and technical content of the invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention.

Drawings

Fig. 1 is a schematic view of a motor airtight device according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a motor air-tight device according to a second embodiment of the present invention.

Reference numerals:

100 motor air-tight device

100a motor air-tight device

1 casing

11 lateral surface

12 inner side surface

2 Airtight cover body

21 cooling hole

3 casing

4 Motor

41 power output shaft

5 machine body

6 temperature monitoring component

71 gas-tight member

72 gas-tight member

8 support member

9 Water-cooled Member

S airtight isolation space

Detailed Description

In order to fully understand the present invention, the following detailed description is given with reference to the accompanying drawings. The objects, features and functions of the present invention will be apparent to those skilled in the art from the disclosure of the present specification. It is to be noted that the present invention may be practiced or applied in other embodiments and that various modifications and changes may be made in the details of the description without departing from the spirit of the invention. In addition, the drawings attached to the present invention are only for simple schematic illustration and are not drawn to actual dimensions. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the claims of the present invention. The description is as follows:

As shown in fig. 1, a first embodiment of the present invention provides a motor air-tight device 100, which includes a housing 1, an air-tight cover 2 and a sleeve 3.

the housing 1 is used for carrying the motor 4, and the housing 1 has an outer side 11 and an inner side 12.

The airtight cover 2 is provided on the outer surface 11 to form an airtight isolation space S on the outer surface 11. The airtight housing 2 may be a stainless steel housing, however, the present invention is not limited thereto.

The sleeve 3 is disposed on the inner side 12 and communicates the airtight isolation space S and the housing 5.

By means of the structure of the motor airtight device 100 of the present invention, the motor 4 can be disposed within the airtight cover 2 and located in the airtight isolated space S, and the airtight cover 2 and the housing 1 are in the airtight state, and the power output shaft 41 of the motor 4 no longer needs to rely on the shaft seal to prevent the external gas from permeating into the body 5. Therefore, the power output shaft 41 has no friction with the housing 1, no dust is generated, and no shaft seal is consumed.

Further, in one embodiment, as shown in fig. 1, the motor sealing device 100 further includes the motor 4 disposed in the hermetically isolated space S. The motor 4 has a power take-off shaft 41, and the power take-off shaft 41 penetrates the housing 1 into the machine body 5 via the sleeve 3. Thereby, the power can be output to the machine body 5 with the entire airtight.

Further, in one embodiment, as shown in fig. 1, the airtight enclosure 2 is provided with cooling holes 21. The cooling holes 21 are used to communicate with a nitrogen source (not shown) which conducts nitrogen into the airtight space S to cool the motor 4, and the nitrogen enters the machine body 5 through the sleeve 3 to fill the working environment of the machine body 5 with nitrogen. The space between the nitrogen pipe and the cooling hole 21 is sealed with an airtight member such as airtight silica gel around the cooling hole 21.

Further, in one embodiment, as shown in fig. 1, the motor sealing device 100 further includes a temperature monitoring member 6 disposed inside the sealing enclosure 2. The temperature monitoring means 6 is used to detect the temperature of the motor 4. The temperature monitoring means 6 may be a wireless or wired device, and if the temperature monitoring means 6 is wired, it is also wired to the outside of the airtight enclosure 2 in a manner of opening and airtight sealing.

Further, in one embodiment, as shown in fig. 1, the motor airtight device 100 further includes airtight members 71, 72. The airtight member 71 is provided between the airtight cover 2 and the housing 1, and the airtight member 72 is provided between the sleeve 3 and the housing 1. The airtight members 71 and 72 are, for example, silica gel airtight members, but the present invention is not limited thereto. Therefore, the space inside the airtight cover body 2, the sleeve 3 and the machine body 5 is airtight isolated from the outside.

Further, in one embodiment, as shown in fig. 1, the motor sealing device 100 further includes a supporting member 8 disposed between the housing 1 and the body 5 for supporting the housing 1 and the motor 4 and the sealing cover 2 outside the housing 1.

Further, as shown in fig. 2, the present invention proposes a second embodiment. The motor sealing device 100a of the second embodiment differs from the motor sealing device 100 of the first embodiment in that the motor sealing device 100a does not have the cooling hole 21 for air cooling, and has the water cooling member 9 provided in the hermetic enclosure body 2. The water cooling member 9 is, for example, a cooling coil, and exchanges heat with the motor 4 through a high surface area.

The present invention has been disclosed in terms of preferred embodiments, but those skilled in the art will recognize that such embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of the invention. It should be noted that all changes and substitutions equivalent to those of the described embodiments are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention is defined by the following claims.

Claims (8)

1. A motor air seal, characterized in that it comprises:

A housing having an outer side and an inner side;

An airtight cover body disposed on the outer side surface to form an airtight isolation space on the outer side surface; and

And the sleeve is arranged on the inner side surface and communicated with the airtight isolated space and the machine body.

2. The motor air-tight device according to claim 1, further comprising a motor disposed in the air-tight isolated space, the motor having a power output shaft penetrating the housing into the machine body via the bushing.

3. The motor air-tight device of claim 1, wherein the air-tight enclosure defines cooling holes.

4. The motor gas seal as claimed in claim 1, further comprising a water cooling member disposed within said gas seal housing.

5. The motor air-seal apparatus of claim 1, further comprising a temperature monitoring member disposed within the air-seal housing.

6. The motor seal of claim 1, further comprising a seal member disposed between the hermetic enclosure and the housing.

7. The motor air-seal apparatus of claim 1, further comprising an air-seal member disposed between the sleeve and the housing.

8. the motor air seal as claimed in claim 1, further comprising a support member disposed between said housing and said body.