CN220586083U - Driving motor, submersible motor and submersible pump - Google Patents

Abstract

The utility model discloses a driving motor, which comprises a shell, a front end cover, a rear end cover and a rotor, wherein the front end cover and the rear end cover are used for sealing the shell; the utility model can solve the problems of easy accumulation of carbon powder in the series excited motor and insufficient heat dissipation capacity.

Description

Driving motor, submersible motor and submersible pump

Technical Field

The utility model relates to the technical field of motors, in particular to a driving motor, a submersible motor and a submersible pump.

Background

The single-phase series excited brush motor has the characteristics of high rotating speed, small volume, light weight, convenient speed regulation, large starting torque, low cost and the like, and is widely applied to electric tools. The carbon brush is arranged in the series excited motor, so that the series excited motor can be worn slowly, sparks are generated during operation, the service life of the carbon brush of the brush motor is generally 200-1000 hours according to different use environment conditions, carbon powder accumulation is easy to cause after long-time operation, and the insulation of the motor is reduced; correspondingly, the temperature of the single-phase series excited brush motor rises faster during working, and if heat cannot be dissipated in time, the service life of the motor is easily affected.

Disclosure of Invention

The utility model aims to solve the technical problems that carbon powder is easy to accumulate in the series excited motor and the heat dissipation capacity is insufficient.

In a first aspect, the utility model provides a driving motor, comprising a casing, a front end cover and a rear end cover for sealing the casing, wherein a rotor is arranged in the casing.

This application drives the gas drive spare through the rotor and rotates, and the gas drive spare can inhale the casing with outside air current through the air current passageway to discharge from rear end cap department, thereby form the heat dissipation to the motor, and form the cleanness to the carbon dust of rear end cap department, improved the life of motor to a great extent, improved the result of use of this application.

In the above preferred technical solution of the driving motor, the air flow channel includes an air inlet disposed on the casing and an air outlet disposed on the back cover plate, and the air inlet is close to the air driving member.

In the above preferred technical solution of the driving motor, the gas driving member is a fan blade.

In a second aspect, the utility model also provides a submersible motor, which comprises the driving motor and an outlet box cover which surrounds the driving motor, wherein a shell cover which surrounds the shell in a sealing way is formed on the outlet box cover and the front end cover, and a part between the outlet box cover and the rear end cover is communicated with a part between the shell cover and the shell.

In the preferable technical scheme of the submersible motor, two ends of the shell cover are respectively connected with the front end cover and the outlet box cover through sealing gaskets.

In the preferable technical scheme of the submersible motor, the outlet box cover is mounted on the rear end cover through screws so that the shell cover is abutted and fixed by the front end cover and the outlet box cover.

In the preferable technical scheme of the submersible motor, the shell cover is made of stainless steel. The stainless steel shell cover has good heat radiation capacity, corrosion resistance and certain hardness, and can effectively ensure the service life of the submersible motor.

In the preferable technical scheme of the submersible motor, an adsorption piece for adhering carbon powder is arranged at the air inlet. The adsorption piece can form adsorption of carbon powder generated by friction of the carbon brush, so that the influence on the service life of the motor caused by the fact that the carbon powder flows in the machine shell along with air flow is avoided.

In the preferable technical scheme of the submersible motor, the absorbing part is felt.

In a third aspect, the utility model also provides a submersible pump comprising the submersible motor described above; and the impeller is positioned in the volute.

The beneficial effects of the utility model are as follows: the rotor drives the gas driving piece to rotate, so that external gas can be pumped into the shell through the air inlet, and air flow pumped into the shell flows out through the air outlet arranged on the rear cover plate, so that carbon powder generated at the rear end cover can be blown out of the shell by flowing air flow, heat dissipation of the driving motor is realized, carbon powder generated by abrasion of the carbon brush can be removed, and the service life of the driving motor is prolonged.

Drawings

FIG. 1 is a cross-sectional view of a submersible motor;

FIG. 2 is an exploded view of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of the rear end cap;

in the figure: the device comprises a shell 1, a front end cover 2, a rear end cover 3, a rotor 4, a gas driving part 5, an air inlet 61, an air outlet 62, an outlet box cover 7, a shell cover 8, a sealing gasket 9, screws 11, an adsorption part 12, a volute 13 and an impeller 14.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1 to 3, the driving motor of the present utility model comprises a housing 1, a front end cover 2 and a rear end cover 3 for blocking the housing 1, a rotor 4 and a stator are arranged in the housing 1, the driving motor further comprises an air flow channel passing through the housing 1 and the rear end cover 3, and an air driving member 5 arranged on the rotor 4, wherein the air driving member 5 drives air to flow along the air flow channel.

It should be noted that, the carbon brush is disposed on the rear end cover 3 of the driving motor and is located inside the casing 1, and when the rotor 4 rotates, the carbon brush is worn to generate conductive carbon powder in the casing 1.

Referring to fig. 1, when the rotor 4 drives the gas driving member 5 to rotate, the gas driving member 5 can suck external air into the casing 1 through the air flow channel and discharge the air from the rear end cover 3, so that heat dissipation of the motor and cleaning of carbon powder at the rear end cover 3 are formed, the service life of the motor is greatly prolonged, and the using effect of the motor is improved.

In one or more embodiments, the gas flow path includes an air inlet 61 provided on the housing 1 and an air outlet 62 provided on the back cover, the air inlet 61 being adjacent to the gas driving member 5.

Referring to fig. 1, 2 and 3, the air inlets 61 are uniformly formed on the casing 1 with the central axis of the casing 1 as the center, the air inlets 61 are relatively close to the air driving member 5, and accordingly, the air inlets 61 can be formed at the upper part or the lower part of the air driving member 5, so that the air driving member 5 can pump external air into the casing 1 through the air inlets 61, the air flow pumped into the casing 1 can flow out through the air outlets 62 formed in the rear cover plate, so that carbon powder generated at the rear end cover 3 can be blown out of the casing 1 by the flowing air flow, and the purposes of removing carbon powder generated by carbon brush abrasion while radiating the driving motor and prolonging the service life of the driving motor are achieved.

Alternatively, the air outlet 62 may be disposed on the casing 1 near the rear end cover 3; the mode can also enable carbon powder generated by the carbon brush to be blown out of the shell 1, and the influence of conductive carbon powder on the operation of the driving motor is avoided.

In one or more embodiments, the gas driving member 5 is a fan blade.

In addition, the utility model also provides a submersible motor which is provided with the driving motor in any embodiment, and comprises an outlet box cover 7 which is arranged on the rear end cover 3 and surrounds the submersible motor, a shell cover 8 which is used for sealing and surrounding the shell 1 is formed on the outlet box cover 7 and the front end cover 2, and a part between the outlet box cover 7 and the rear end cover 3 is communicated with a part between the shell cover 8 and the shell 1.

Referring to fig. 1, the outlet box cover 7 and the front end cover 2 and the shell cover 8 on the driving motor can completely seal and enclose the driving motor, so that the submersible motor can work underwater without being affected.

It should be noted that, the space between the outlet box cover 7 and the rear end cover 3 can be communicated with the space between the housing cover 8 and the casing 1, so that when the rotor 4 drives the air driving piece 5 to rotate, the air flow in the space between the housing cover 8 and the casing 1 can be pumped into the casing 1 and enter the space between the outlet box cover 7 and the rear end cover 3 through the air outlet 62, thereby forming an air flow internal circulation and improving the heat dissipation effect of the submersible motor when in underwater operation.

In one or more embodiments, both ends of the housing cover 8 are connected to the front end cover 2 and the outlet box cover 7, respectively, by sealing washers 9.

Referring to fig. 1 and 2, the sealing washer 9 is the cross-section L type setting, simple to operate, in comparison with traditional annular coil, the L shape sealing coil of this application when the installation, after the shell cover 8 extrudeed on sealing coil, L shape sealing coil can be inseparable with shell cover 8 contact and be difficult for being cut off, effectively improves submersible motor's sealing performance, improves submersible motor's life.

In one or more embodiments, the outlet box cover 7 is mounted to the rear end cover 3 by screws 11 such that the housing cover 8 is held in place by the front end cover 2 and the outlet box cover 7.

Referring to fig. 1, the outlet box cover 7 is tightly bound on the box cover through four screws 11, and meanwhile, under the extrusion of the outlet box cover 7, the shell cover 8 can be abutted against the sealing gasket 9, so that the sealing assembly of the submersible motor is realized, and the submersible motor is simple in structure and convenient to operate.

In one or more embodiments, the housing cover 8 is stainless steel. The stainless steel material has good heat radiation capability, corrosion resistance and certain hardness, and can effectively ensure the service life of the submersible motor.

In one or more embodiments, an adsorbing member 12 for adhering carbon powder is provided at the air inlet 61.

Referring to fig. 1, the adsorbing member 12 is capable of forming adsorption of carbon powder generated by friction of the carbon brush.

It will be appreciated that the adsorbing member 12 may also be provided at the air outlet 62 or at the space between the casing 1 and the housing cover 8, the space between the outlet box cover 7 and the rear cover 3.

In one or more embodiments, the absorbent member 12 is a linoleum. The felt can effectively adhere carbon powder, and the adsorption piece 12 can also be glue solution.

In addition, the utility model also provides a submersible pump, which is provided with the submersible motor in any embodiment; and comprises a volute 13 arranged on the front end cover 2 and an impeller 14 arranged on the rotor 4, wherein the impeller 14 is positioned in the volute 13.

Referring to fig. 1, the submersible pump comprises a submersible motor, a volute 13 and an impeller 14, wherein a rotor 4 of the submersible motor can drive the impeller 14 to rotate so that fluid enters through a water inlet of the volute 13 and is discharged through a water outlet of the volute 13.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a driving motor, includes the casing and shutoff front end housing and the rear end cap of casing, be provided with the rotor in the casing, its characterized in that, driving motor still includes the air current passageway that flows through on casing and the rear end cap and set up the gas drive spare on the rotor, gas drive spare drive gas flows along the air current passageway.

2. A drive motor as claimed in claim 1, characterized in that: the air flow channel comprises an air inlet arranged on the shell and an air outlet arranged on the rear cover plate, and the air inlet is close to the air driving piece.

3. A drive motor as claimed in claim 1, characterized in that: the gas driving piece is a fan blade.

4. A submersible motor, characterized by comprising the drive motor of claim 2, and comprising an outlet box cover which surrounds the rear end cover, wherein a shell cover which surrounds the shell in a sealing way is formed on the outlet box cover and the front end cover, and the part between the outlet box cover and the rear end cover is communicated with the part between the shell cover and the shell.

5. A submersible motor as recited in claim 4 wherein: and two end parts of the shell cover are respectively connected with the front end cover and the outlet box cover through sealing gaskets.

6. A submersible motor according to claim 4 or 5, wherein: the outlet box cover is arranged on the rear end cover through screws so that the shell cover is tightly supported and fixed by the front end cover and the outlet box cover.

7. A submersible motor as recited in claim 4 wherein: the shell cover is made of stainless steel.

8. A submersible motor as recited in claim 4 wherein: an adsorption piece for adhering carbon powder is arranged at the air inlet.

9. A submersible motor as recited in claim 8 wherein: the absorbing part is felt.

10. A submersible pump comprising a submersible motor according to any one of claims 4 to 9; and the impeller is positioned in the volute.