CN218733568U - Waterproof motor - Google Patents

Abstract

A waterproof motor belongs to the technical field of direct current motors and comprises a front shell and a rear shell, wherein a middle section sealing shell is fixed between the front shell and the rear shell through a horizontally arranged bolt; the front outer shell, the rear outer shell and the middle-section sealing shell are matched to form a rotor accommodating space, and the rotor accommodating space comprises a rotating shaft, a front waterproof bearing arranged at the front end of the rotating shaft and a rear bearing arranged at the rear end; lie in the rotor accommodation space in the shell body behind the rear bearing embedding, preceding waterproof bearing sets up in the shell body in the front, has the cover portion on the preceding shell body, and the radial cover face of waterproof bearing before the cover portion is covered including covering to and cover the axial cover face of pivot, be provided with sealing mechanism on the axial cover face. The problem of in the comdenstion water refluence on the air conditioner motor shaft enters the motor inner chamber, arouses the stator to rust, the bearing rusts, blocks the quality problems such as dying is solved, a motor that still carries out special protection to the axle on traditional fuselage waterproof basis is provided.

Description

Waterproof motor

Technical Field

The utility model belongs to the technical field of direct current motor, concretely relates to waterproof motor.

Background

In recent years, with the development of national economy and the continuous improvement of the living standard of people in China, the use of the motor is more and more popular, new varieties are more and more, and the performance is more and more excellent. With the improvement of living standard of people, people have higher and higher requirements on the motor, so that various motor manufacturers need to improve the performance, the price and other aspects.

At present, a motor needing a waterproof function related to a product of the applicant is a motor which is used in an air conditioner by an integrator, and due to the fact that condensed water can appear in the air conditioner, when a motor shaft is used vertically, the condensed water can flow into the interior of the motor along the motor shaft, so that quality problems such as rusting of a stator, rusting of a bearing, blocking and the like are caused, the existing motor structure is not suitable for the air conditioner, and the existing motor structure needs to be improved.

In the application document of the prior art publication No. CN 214755837U, a technical scheme is provided, a double-U-shaped protection structure is arranged on the periphery of a stator assembly, and the stable and reliable work of a motor is ensured; the O-shaped ring, the square ring and the waterproof plug screw form a three-way sealing waterproof structure; and low-thermal-resistance strip-shaped heat dissipation ribs are designed on the aluminum die-casting support and the aluminum die-casting end cover.

The waterproof performance of the machine body and the end cover considered in the existing comparison document neglects the waterproof performance on the motor shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the comdenstion water on the air conditioner motor shaft and flowing backwards into the motor inner chamber, arousing that the stator rusts, and the bearing rusts, blocks the scheduling quality problem, provides a still carry out the motor of protecting very much to the axle on traditional fuselage waterproof basis.

In order to achieve the technical purpose of the application, the following technical scheme is provided: a waterproof motor comprises a front shell body and a rear shell body, wherein a middle section sealing shell is fixed between the front shell body and the rear shell body through a horizontally arranged bolt; the front outer shell, the rear outer shell and the middle-section sealing shell are matched to form a rotor accommodating space, and the rotor accommodating space comprises a rotating shaft, a front waterproof bearing arranged at the front end of the rotating shaft and a rear bearing arranged at the rear end; lie in the rotor accommodation space in the shell body behind the rear bearing embedding, preceding waterproof bearing sets up in the shell body in the front, has the cover portion on the preceding shell body, and the radial cover face of waterproof bearing before the cover portion is covered including covering to and cover the axial cover face of pivot, be provided with sealing mechanism on the axial cover face.

In an embodiment, the sealing mechanism includes a radially disposed groove, an elastic ring fastened on the rotating shaft is clamped in the groove, and the groove is further filled with a solid lubricant.

In an implementation mode, a waterproof piece is arranged at the front end of the front outer shell in a close contact mode, and the waterproof piece is in close contact with the rotating shaft.

In an embodiment, the waterproof piece is provided with an annular diversion groove at the position of the close contact surface of the front outer shell.

In an implementation mode, a water-driving structure is arranged on the contact surface of the waterproof piece and the rotating shaft, and the water-driving structure is a chamfer facing to the front end and is arranged inwards from the front end.

In an embodiment, the elastic ring is an "O" type nitrile rubber sealing ring.

Compared with the prior art, the utility model has the following beneficial effect: on the basis of the waterproof of the machine body in the prior art, the joint of the front outer shell and the rotating shaft is subjected to special waterproof treatment.

Newly-increased waterproof piece with motor in close contact with set up on waterproof piece with preceding shell body contact's annular guiding gutter, liquid on the motor can flow outside the motor along annular guiding gutter, can not flow in the pivot.

When liquid drips on the waterproof part, the waterproof part can prevent the liquid from flowing into the rotating shaft through the front outer shell and then flowing into the motor, the liquid flows to the sealing mechanism under the action of the waterproof part and is discharged out of the motor under the action of the centrifugal force of the rotating shaft, the liquid is prevented from flowing into the motor, the liquid is effectively prevented from flowing into the motor, and the service life of the motor is greatly prolonged.

Drawings

1 front shell body, 2 rear shell bodies, 3 middle section sealing shell bodies, 4 rotor accommodating spaces and 5 sealing mechanisms

11 covering part, 12 waterproof part, 13 annular diversion groove, 41 rotating shaft, 42 front waterproof bearing, 43 rear bearing, 44 water-driving structure, 51 groove, 52 elastic ring, 53 solid lubricant, 111 radial covering surface, 112 axial covering surface,

FIG. 1 is a side sectional view of the present embodiment;

FIG. 2 is a schematic view of the overall structure of the present embodiment;

FIG. 3 is a schematic overall view of the front outer housing of the present embodiment;

FIG. 4 is a side cross-sectional view of the front outer housing of the present embodiment;

Detailed Description

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Such as the embodiments shown in fig. 1, 2, 3 and 4. A waterproof motor comprises a front outer shell 1 and a rear outer shell 2, wherein a middle section sealing shell 3 is fixed between the front outer shell 1 and the rear outer shell 2 through horizontally arranged bolts; the front outer shell 1, the rear outer shell 2 and the middle section sealing shell 3 are matched to form a rotor accommodating space 4. Preceding seal structure is provided with between shell body 1 in the front and the sealed shell 3 in middle section, is the preceding groove that the level set up including the opening of seting up on the sealed shell 3 in middle section to and set up the preceding sealing washer in the groove in the front. Be provided with back seal structure between middle section seal shell 3 at back shell body 2, be the back groove of level setting including seting up the opening on middle section seal shell 3 to and set up the back sealing washer in the back inslot. The structure where the two sealing rings are located is a sealing structure on the motor body.

In the present embodiment, the rotor accommodating space 4 shown in fig. 1 includes a rotating shaft 41, a front waterproof bearing 42 provided at a front end of the rotating shaft 41, and a rear bearing 43 at a rear end; the rear bearing 43 is embedded in the rear outer housing 2 in the rotor accommodating space 4. The front waterproof bearing 42 is arranged in the front outer shell 1, the front outer shell 1 is provided with a covering part 11, the covering part 11 comprises a radial covering surface 111 covering the front waterproof bearing 42 and an axial covering surface 112 covering the rotating shaft 41, and the sealing mechanism 5 is arranged on the axial covering surface 112.

In the present embodiment, the sealing mechanism 5 shown in fig. 1 and 4 includes a radially disposed groove 51, an elastic ring 52 fastened to the rotating shaft 41 is engaged in the groove 51, and the groove 51 is further filled with a solid lubricant 53. In this embodiment, the elastic ring 53 is an "O" type nitrile rubber seal ring.

The groove 51 opens toward the rotation shaft 41 and away from the front outer housing 1 of the front waterproof bearing 42.

In this embodiment, the front end of the front outer case 1 is tightly bonded with the waterproof member 12 by the bonding glue, and the waterproof member 12 is disposed close to the sealing structure, and the waterproof member 12 is in tight contact with the rotating shaft 41. And the waterproof part 12 has the annular guiding gutter 13 with the tight face department of preceding shell body 1, and the water that is located on the motor casing can flow away from the both sides of pivot 41 along annular guiding gutter 13, can not pass through the position of pivot 41.

In another embodiment, flashing 12 may also function as a sealing mechanism 5, which seals one side of groove 51.

In this embodiment, as shown in fig. 1, 2, 3 and 4, a water-driving structure 44 is disposed on a contact surface of the waterproof member 12 and the rotating shaft 41, and the water-driving structure 44 is a chamfer facing to the front end and disposed inward from the front end. Moreover, since the solid lubricant 52 in the sealing mechanism 5 will overflow slightly during operation, when the rotating shaft 41 rotates, a small amount of water remaining on the rotating shaft 41 will form water drops on the surface of the rotating shaft, and the water drops will flow out of the waterproof member 12 along the chamfer.

The chamfer angle is 45 degrees, and a 0.2cm-0.3cm front cover of the surface of the waterproof part 12, which is in contact with the rotating shaft 41, is connected with the chamfer angle, namely the chamfer angle cannot be directly opened into the groove 51, or is in direct contact with the side surface of the groove 51, so that the solid lubricant 52 in the groove 51 is prevented from overflowing in a large amount.

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described above with reference to the embodiments and the accompanying drawings, so as to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.

The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.

Claims (6)

1. A waterproof motor comprises a front outer shell (1) and a rear outer shell (2), wherein a middle section sealing shell (3) is fixed between the front outer shell (1) and the rear outer shell (2) through a horizontally arranged bolt; the front outer shell (1), the rear outer shell (2) and the middle section sealing shell (3) are matched to form a rotor accommodating space (4), and the rotor accommodating space (4) comprises a rotating shaft (41), a front waterproof bearing (42) arranged at the front end of the rotating shaft (41) and a rear bearing (43) arranged at the rear end; rear bearing (43) embedding lie in back shell body (2) in rotor accommodation space (4), its characterized in that, preceding waterproof bearing (42) set up in preceding shell body (1), cover portion (11) have on preceding shell body (1), cover portion (11) are including covering radial cover face (111) of preceding waterproof bearing (42), and cover axial cover face (112) of pivot (41), be provided with sealing mechanism (5) on axial cover face (112).

2. A watertight motor according to claim 1, characterized in that said sealing means (5) comprises a radially arranged groove (51), said groove (51) having an elastic ring (52) fastened to said shaft (41) engaged therein, said groove (51) being further filled with a solid lubricant (53).

3. The waterproof motor according to claim 2, wherein a waterproof member (12) is closely attached to the front end of the front outer housing (1), and the waterproof member (12) is in close contact with the rotating shaft (41).

4. A waterproof electric machine according to claim 3, characterized in that the waterproof member (12) has an annular flow guide groove (13) at the position of the close contact surface of the front outer shell (1).

5. A watertight motor according to claim 3 or 4, characterized in that said flashing member (12) is provided with a water-repelling structure (44) at the contact surface with said shaft (41), said water-repelling structure (44) being a chamfer towards the front end, inwardly from the front end.

6. A waterproof electric machine according to claim 2, characterised in that said elastic ring (52) is an "O" nitrile rubber seal.

Images