CN106787404B

CN106787404B - Motor and damping device thereof

Info

Publication number: CN106787404B
Application number: CN201710217688.2A
Authority: CN
Inventors: 曹姣容; 康宁
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2017-04-05
Filing date: 2017-04-05
Publication date: 2023-08-08
Anticipated expiration: 2037-04-05
Also published as: CN106787404A

Abstract

The invention discloses a motor and a damping device thereof. According to the damping device provided by the invention, the exposed part of the motor is wrapped by the outsourcing damping structure, so that the condition that the exposed part of the motor is in hard contact with the load shell or other parts is effectively avoided, the vibration of the motor is prevented from being transmitted to the load shell or other parts, the condition that the load shell or other parts are driven to vibrate due to the vibration of the motor is further avoided, and the noise is effectively reduced.

Description

Motor and damping device thereof

Technical Field

The invention relates to the technical field of motor equipment, in particular to a motor and a damping device thereof.

Background

The damping device is widely applied to motors such as air conditioner motors, dehumidifiers, air purifiers and the like.

As shown in fig. 1-4, at present, a damping device used in a motor is a damping ring 01, the damping ring 01 is of a circular ring structure and is sleeved on a bearing chamber of an end cover to form tight fit so as to conveniently mount and damp the part.

Taking a plastic package motor as an example, a motor housing 02 of the plastic package motor is provided with a protruding portion 03, the protruding portion 03 is in matched connection with a thermal protector bracket 04, and the thermal protector is installed and fixed in the protruding portion 03 and the thermal protector bracket 04. Because the load design is compact, so that gaps among all the components are very small, the bulge 03 and the thermal protector support 04 can often touch with the load shell, so that vibration of the motor can be transmitted to the load through hard contact between the bulge 03 and the thermal protector support 04 and the load shell, load vibration is caused, and noise is generated.

Therefore, how to avoid the shock absorption and transmission of the motor and reduce the noise is a problem to be solved by the person skilled in the art.

Disclosure of Invention

In view of the above, the present invention provides a damping device to avoid the damping transmission of the motor and reduce the noise. The invention also provides a motor with the damping device. .

In order to achieve the above purpose, the present invention provides the following technical solutions:

a damping device comprises an outsourcing damping structure for wrapping an exposed part of a motor.

Preferably, the damping device further comprises a damping ring sleeved in the motor bearing chamber, and the damping ring is connected with the outer-wrapping damping structure.

Preferably, in the above shock absorbing device, the shock absorbing ring and the outer packing shock absorbing structure are of an integral structure.

Preferably, in the above shock absorbing device, the wrapping shock absorbing structure has a protecting portion for wrapping the exposed portion and a connecting portion for connecting the protecting portion and the shock absorbing ring.

Preferably, in the above-mentioned shock absorbing device, the connecting portion is a covering portion for covering on a wire groove of the motor case.

Preferably, in the above-mentioned shock absorbing device, the number of the guard portions is plural.

Preferably, in the above shock absorbing device, the protecting portion has a groove structure wrapping the exposed portion.

Preferably, in the above shock absorbing device, the protection part is provided with a avoiding groove for the power line to pass through.

Preferably, in the above shock absorbing device, the thickness of the protection part is 0.5mm to 3mm;

and/or the thickness of the connecting part is 0.5 mm-3 mm.

Preferably, in the above shock absorbing device, the shock absorbing ring is a stepped shock absorbing ring;

or, the damping ring is a straight cylinder type damping ring.

The invention also discloses a motor, which comprises a damping device, wherein the damping device is the damping device.

Preferably, in the motor, the exposed part of the motor is a convex part of the thermal protector bracket and/or the motor shell.

According to the technical scheme, the exposed part of the motor is wrapped by the outer wrapping damping structure, so that the condition that the exposed part of the motor is in hard contact with the load shell or other parts is effectively avoided, vibration of the motor is prevented from being transmitted to the load shell or other parts, the condition that the load shell or other parts are driven to vibrate due to vibration of the motor is further avoided, and noise is effectively reduced.

The invention also provides a motor, which comprises a damping device, wherein the damping device is any one of the damping devices. Since the above-mentioned damper has the above-mentioned technical effects, the motor having the above-mentioned damper should have the same technical effects, and will not be described in detail herein.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art motor;

FIG. 2 is a schematic front view of a first prior art shock absorber;

FIG. 3 is a schematic view showing a rear structure of a first shock absorbing device according to the prior art;

FIG. 4 is a schematic diagram of a second prior art shock absorber;

fig. 5 is a schematic structural diagram of a motor according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a structure of a motor with a protection part and a damping ring of a motor-removing damping device according to an embodiment of the present invention;

FIG. 7 is a schematic front view of a first shock absorber according to an embodiment of the present invention;

FIG. 8 is a schematic view of a rear structure of a first shock absorbing device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second shock absorbing device according to an embodiment of the present invention.

Detailed Description

The invention discloses a damping device which is used for avoiding damping transmission of a motor and reducing noise. The invention also discloses a motor with the damping device.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 5, 6, 7 and 8, the embodiment of the invention provides a damping device, which comprises an outer-wrapping damping structure, wherein the outer-wrapping damping structure is used for wrapping an exposed part of a motor.

According to the damping device provided by the embodiment of the invention, the exposed part of the motor is wrapped by the outsourcing damping structure, so that the condition that the exposed part of the motor is in hard contact with the load shell or other parts is effectively avoided, the vibration of the motor is prevented from being transmitted to the load shell or other parts, the condition that the load shell or other parts are driven to vibrate due to the vibration of the motor is further avoided, and the noise is effectively reduced.

Preferably, the damping device in this embodiment further comprises a damping ring 11 for being sleeved in the motor bearing chamber, and the damping ring 11 is connected with the outer-wrapping damping structure. Through the arrangement, the damping ring 11 and the outer-wrapping damping structure are convenient to jointly install, and the installation operation is simplified; and, also can install respectively in the different positions of motor through shock attenuation circle 11 and outsourcing shock-absorbing structure, restrict each other, improved damping device's installation stability for the motor.

For the convenience of processing, the damping ring 11 and the outer-wrapping damping structure are of an integral structure. That is, the damper ring 11 and the outer-coating damper structure are made of the same material and are manufactured by an integral molding method such as injection molding.

Or the damping rings 11 and the outer damping structure can be connected together after being processed separately.

In order to facilitate installation and reduce the restriction of the motor structure on the mutual positions of the outer packing damping structure and the damping ring 11, the outer packing damping structure is provided with a protecting part 13 for packing the exposed part and a connecting part 12 for connecting the protecting part 13 and the damping ring 11. By adjusting the structure of the connecting portion 12, the position limitation of the protecting portion 13 and the damping ring 11 is reduced, and the installation of the damping device is facilitated.

As shown in fig. 5 and 6, the motor housing 2 is provided with a wire groove 6 so as to place a wire such as a motor power outlet wire in the wire groove 6. In the present embodiment, the connection portion 12 is a covering portion for covering on the wire groove 6 of the motor housing 2. That is, the connection portion 12 covers the wire groove 6 so as to protect the wires in the wire groove 6, thereby further improving the motor protection effect.

In the actual operation process, since the protecting portion 13 is connected with the connecting portion 12, the specific connection structure between the protecting portion 13 and the connecting portion 12 is determined according to the exposed portion of the motor housing 2 to be wrapped and the position of the wire groove 6 on the motor housing 2, which will not be described in detail herein.

As shown in fig. 5, in order to avoid the problem of mutual interference of the components, the portion of the damper ring 11 exposed after being mounted in the bearing housing is connected to the connection portion 12.

Further, the number of the protecting parts 13 is plural, so as to wrap the exposed parts of different positions on the motor respectively. Of course, the number of the guard portions 13 may be one.

In order to improve the stability of the fit between the protecting portion 13 and the exposed portion, the protecting portion 13 has a groove structure for wrapping the exposed portion so as to locate the exposed portion in the groove structure. The guard 13 may be a planar guard piece, and may be attached to the exposed portion by means of adhesion, screws, or the like.

Further, the guard 13 has a relief groove 14 through which the power cord 5 passes. Through the above arrangement, the arrangement of the power line 5 is facilitated, and the mutual interference between the power line 5 and the protecting part 13 is avoided.

Preferably, the thickness of the guard portion 13 is 0.5mm to 3mm in view of cost saving on the basis of ensuring shock absorption guard; the thickness of the connection portion 12 is 0.5mm to 3mm.

The thickness of the protection portion 13 may be only 0.5mm to 3mm, and the thickness of the connection portion 12 without the need for shock absorption may be reduced, and only the connection strength may be ensured.

It is also possible to make only the thickness of the connection portion 12 0.5mm to 3mm and the thickness of the shielding portion 13 greater than 3mm in order to improve the shock absorbing effect.

In order to save costs, the width of the connecting portion 12 is smaller than the width of the shielding portion 13. The arrangement direction of the guard portion 13 and the damper ring 11 is the longitudinal direction of the connecting portion 12, and the direction perpendicular thereto is the width direction of the connecting portion 12, and is also the width direction of the guard portion 13.

As shown in fig. 7 and 8, in the first embodiment, the damper ring 11 is a stepped damper ring in which one end of a large diameter is installed toward the motor housing 2.

In the second embodiment, as shown in fig. 9, the damper ring 11 is a straight cylinder type damper ring. Further, the outer surface of the damping ring 11 is provided in a zigzag structure so as to improve the damping effect.

The embodiment of the invention also provides a motor, which comprises a damping device 1, wherein the damping device 1 is any one of the damping devices. Since the above-mentioned damper has the above-mentioned technical effects, the motor having the above-mentioned damper should have the same technical effects, and will not be described in detail herein.

As shown in fig. 5 and 6, in the present embodiment, the exposed portions on the motor are the thermal protector support 4 and the convex portion 3 of the motor housing 2. That is, the protecting portion 13 of the damper device 1 is wrapped together with the heat protector bracket 4 and the convex portion of the motor housing 2, or may be wrapped individually, without being particularly limited thereto.

Of course, other positions of the motor are possible, and are not described in detail herein and are within the scope of protection.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The damping device is characterized by comprising an outer-wrapping damping structure for wrapping the exposed part of the motor;

the motor is characterized by further comprising a damping ring (11) which is sleeved in the motor bearing chamber, wherein the damping ring (11) is connected with the outer-wrapping damping structure;

the outer-wrapping shock-absorbing structure is provided with a protection part (13) for wrapping the exposed part and a connecting part (12) for connecting the protection part (13) and the shock-absorbing ring (11);

the connecting part (12) is a covering part for covering the wire groove (6) of the motor shell (2).

2. Damping device according to claim 1, characterized in that the damping ring (11) is of unitary construction with the outer packing damping structure.

3. Damping device according to claim 1, characterized in that the number of the guard parts (13) is a plurality.

4. Damping device according to claim 1, characterized in that the guard (13) has a groove structure surrounding the exposed part.

5. Damping device according to claim 1, characterized in that the protection part (13) is provided with a relief groove (14) for the passage of the power line (5).

6. Damping device according to claim 1, characterized in that the thickness of the guard (13) is 0.5-3 mm;

and/or the thickness of the connecting part (12) is 0.5 mm-3 mm.

7. Damping device according to claim 1, characterized in that the damping ring (11) is a stepped damping ring;

or, the damping ring (11) is a straight cylinder type damping ring.

8. An electric machine comprising a damping device (1), characterized in that the damping device (1) is a damping device according to any one of claims 1-7.

9. An electric machine according to claim 8, characterized in that the exposed parts of the electric machine are the thermal protector brackets (4) and/or the raised parts (3) of the electric machine housing (2).