CN215409950U

CN215409950U - Damping piece, damping subassembly and motor part

Info

Publication number: CN215409950U
Application number: CN202121593894.1U
Authority: CN
Inventors: 张海林; 李小怀; 姚新祥; 姚刚; 卢鸿波; 马江辉
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-01-04
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a vibration damping piece, a vibration damping assembly and a motor component, wherein the vibration damping piece is made of an elastic material and is provided with a through hole, the vibration damping piece comprises a first vibration damping section, a second vibration damping section and a third vibration damping section which are sequentially connected, and the through hole penetrates through the first vibration damping section, the second vibration damping section and the third vibration damping section; the third vibration reduction section is of a structure with a thick middle part and two thin ends, and the maximum radial size of the third vibration reduction section is larger than that of the second vibration reduction section. Because the third damping section of the damping piece is of a structure with thick middle and thin two ends, the third damping section can easily penetrate through the assembly holes of the mounting frame and other structures through the guiding effect of the thin end parts. Through this technical scheme, can use the mode installation damping piece that penetrates in the hole, the inner wall of pilot hole all can be spacing to the damping piece in each position of circumference, has replaced the assembly methods that adopts the draw-in groove among the prior art to when guaranteeing parts damping effects such as motor, improved the connection reliability.

Description

Damping piece, damping subassembly and motor part

Technical Field

The utility model relates to the technical field of motor vibration reduction, in particular to a vibration reduction piece, a vibration reduction assembly and a motor component.

Background

The motor and the like may vibrate during operation, and the vibration may generate noise and may cause looseness of the connection structure. In order to buffer the vibration of the motor, a rubber pad or the like is usually provided at the connection position between the motor and the mounting bracket. In order to improve the vibration reduction effect and avoid rigid connection, some rubber pads are made into structures with thin middle parts and thick two ends. However, this structure is difficult to insert into a hole having a smaller diameter than the rubber pad, and therefore, in order to achieve assembly, a mounting hole cannot be provided on the motor or the mounting bracket, but a groove, such as a U-shaped groove, is provided on the motor or the mounting bracket, and the rubber pad is inserted into the groove. And adopt the mode of draw-in groove, the easy pine of place rubber pad at the draw-in groove opening takes off, and the reliability is poor. Therefore, it is necessary to design a new damping member to improve the connection reliability while ensuring the damping effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vibration damping piece, a vibration damping assembly and a motor component, so that the vibration damping piece is easily inserted into an assembly hole, the vibration damping effect is ensured, and the connection reliability is improved.

In order to achieve the above object, according to one aspect of the present invention, there is provided a damping member made of an elastic material, the damping member having a through hole, the damping member including a first damping section, a second damping section, and a third damping section connected in sequence, the through hole penetrating the first damping section, the second damping section, and the third damping section; the third vibration reduction section is of a structure with a thick middle part and two thin ends, and the maximum radial size of the third vibration reduction section is larger than that of the second vibration reduction section.

Further, the third vibration attenuation section is on the axial cross section of the through hole, and the outer edge of the third vibration attenuation section is an arc line.

Furthermore, the damping piece still includes the fourth damping section, and the one end that deviates from the second damping section of fourth damping section and third damping section is connected, and the radial dimension of fourth damping section is less than or equal to the minimum radial dimension of third damping section.

Further, the through hole penetrates through the fourth vibration attenuation section; or the fourth vibration reduction section is provided with a limiting groove, the limiting groove is communicated with the through hole, the inner wall of the limiting groove is provided with at least one limiting plane, and the limiting plane is used for limiting and matching with a structure placed in the limiting groove to realize circumferential limiting.

Further, the radial dimension of the first vibration attenuation section is larger than that of the third vibration attenuation section, and the surfaces of the two ends of the first vibration attenuation section are both planes.

According to another aspect of the utility model, a vibration damping assembly is provided, which comprises a mounting frame, a first fastening piece, a second fastening piece and the vibration damping piece, wherein the mounting frame is provided with a mounting hole, the vibration damping piece passes through the mounting hole, a first vibration damping section and a third vibration damping section of the vibration damping piece are respectively arranged at two sides of the mounting hole, the first fastening piece passes through a through hole of the vibration damping piece, and the second fastening piece is in threaded connection with the first fastening piece.

Further, the vibration damping piece is the vibration damping piece, the first fastening piece is provided with an external thread, the second fastening piece is provided with an internal thread, the second fastening piece is located in a limiting groove of the vibration damping piece, and the outer wall of the second fastening piece is in circumferential limiting fit with the inner wall of the limiting groove.

Further, first fastener has the external screw thread, and the second fastener has the internal thread, and the damping subassembly still includes the gasket, and the gasket is located one side that deviates from first damping section of third damping section, and second fastener and gasket butt.

According to a further aspect of the present invention, there is provided a motor component comprising a motor, a bracket and the vibration reduction assembly described above, the bracket and the motor being fixedly connected, the bracket having a connection hole through which a first fastening member of the vibration reduction assembly passes to secure the bracket to a mounting bracket of the vibration reduction assembly, the vibration reduction member of the vibration reduction assembly spacing the bracket from the mounting bracket.

Furthermore, the support is two, and the damping piece is two, and two damping pieces are installed on same mounting bracket, two the support sets up with two damping piece one-to-one.

The technical scheme of the utility model is applied to provide a vibration damping piece, wherein the vibration damping piece is made of elastic materials and is provided with a through hole, the vibration damping piece comprises a first vibration damping section, a second vibration damping section and a third vibration damping section which are sequentially connected, and the through hole penetrates through the first vibration damping section, the second vibration damping section and the third vibration damping section; the third vibration reduction section is of a structure with a thick middle part and two thin ends, and the maximum radial size of the third vibration reduction section is larger than that of the second vibration reduction section. In this embodiment, the third vibration damping section of the vibration damping member has a structure with a thick middle and two thin ends, so that the third vibration damping section can be easily inserted into the mounting hole of the mounting bracket or the like by the guiding function of the thin end part. Specifically, when wearing to establish the damping piece, penetrate the pilot hole with the thin tip of third damping section earlier, in the process of penetrating, the thin tip has played the guide effect, and the thick mid portion of third damping section takes place elastic shrinkage easily like this and passes the pilot hole, and the third damping section is in the in-process of passing the pilot hole, and the less second damping section of radial dimension will be very easy entering into in the pilot hole. After the vibration damping piece penetrates in place, the second vibration damping section is located in the assembling hole, and the third vibration damping section and the first vibration damping section are located on two sides of the assembling hole respectively, so that the vibration damping piece can be matched with a fastening piece, a motor and the like to play a vibration damping effect. Adopt this damping piece can use the mode installation damping piece that penetrates in the hole, the inner wall of pilot hole all can be spacing to damping piece in each position of circumference, has replaced the assembly methods who adopts the draw-in groove among the prior art like this to when guaranteeing the damping effect, improved the connection reliability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic view illustrating an assembly structure of a motor part according to an embodiment of the present invention;

FIG. 2 shows an exploded view of the motor components of FIG. 1;

FIG. 3 shows a cross-sectional view of the motor assembly of FIG. 1;

fig. 4 shows a close-up view of selected areas of fig. 3.

Wherein the figures include the following reference numerals:

10. a vibration damping member; 11. a first damping section; 12. a second damping section; 13. a third vibration damping section; 14. a fourth damping section; 15. a limiting groove; 21. a mounting frame; 22. a first fastener; 23. a second fastener; 24. an assembly hole; 31. a motor; 32. a support; 33. and connecting the holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a damping member, the damping member is made of an elastic material, the damping member has a through hole, the damping member includes a first damping section 11, a second damping section 12 and a third damping section 13 which are connected in sequence, and the through hole penetrates through the first damping section 11, the second damping section 12 and the third damping section 13; the third vibration attenuation section 13 is of a structure with thick middle and thin two ends, and the maximum radial dimension of the third vibration attenuation section 13 is larger than that of the second vibration attenuation section 12.

In this embodiment, the damping piece is made by elastic material, can effectual isolation and buffering vibration, and the damping piece includes first damping section 11, second damping section 12 and the third damping section 13 that connects gradually, includes the through-hole on the damping piece, and the through-hole runs through above-mentioned damping section, the assembly of the follow-up fastener of being convenient for. The third vibration attenuation section 13 is of a structure with thick middle and thin two ends, the whole vibration attenuation piece is made of elastic materials, the thick middle part of the third vibration attenuation section 13 is easy to elastically deform, contract and amplify, and the third vibration attenuation section 13 can easily penetrate through the assembly holes 24 of the mounting frame 21 and other structures under the guiding effect of the thin end part of the third vibration attenuation section 13.

Specifically, during the process of the third damper segment 13 passing through the fitting hole 24, the second damper segment 12 having a smaller radial dimension enters the fitting hole 24. After the vibration damping piece penetrates, the second vibration damping section 12 is located in the assembling hole 24, and the third vibration damping section 13 and the first vibration damping section 11 are located on two sides of the assembling hole 24 respectively, so that the vibration damping piece can be matched with a fastening piece, a motor 31 and the like to play a role in vibration damping.

Adopt this damping piece can use the mode installation damping piece that penetrates in the hole, the inner wall of pilot hole 24 all can be spacing to damping piece in each position of circumference, has replaced the assembly methods that adopts the draw-in groove among the prior art like this to when guaranteeing the damping effect, improved the connection reliability.

In particular, the radial dimension is understood to be the dimension in the diametrical direction of the through hole; the elastic material can be selected from rubber, silica gel, etc.

Further, the third vibration attenuation section 13 is on the axial section of the through hole, and the outer edge of the third vibration attenuation section 13 is an arc line. Third damping section 13 is connected with second damping section 12, and third damping section 13 contains the through-hole of being connected with second damping section 12 interior through-hole is corresponding, and the outer edgewise of third damping section 13 is the high pitch arc on both sides in the middle of, is convenient for penetrate like this when the installation damping piece, and third damping section 13 can play the damping and prevent the effect of drunkenness or coming off after the installation is accomplished.

Specifically, the damping piece further comprises a fourth damping section 14, the fourth damping section 14 is connected with one end, away from the second damping section 12, of the third damping section 13, and the radial dimension of the fourth damping section 14 is smaller than or equal to the minimum radial dimension of the third damping section 13. In this embodiment, after the fourth vibration damping section 14 is connected to the third vibration damping section 13 of the first vibration damping section 11, the second vibration damping section 12 and the third vibration damping section 13 which are connected in sequence, the vibration damping member includes the first vibration damping section 11, the second vibration damping section 12, the third vibration damping section 13 and the fourth vibration damping section 14 which are connected in sequence. The radial dimension of the fourth damping section 14 is smaller than or equal to the smallest radial dimension of the third damping section 13, and the radial dimension of the fourth damping section 14 is such that it can pass through the assembly aperture and guide the third damping section 13 through the assembly aperture 24. When the damping piece is installed, the fourth damping section 14 is penetrated first, so that the third damping section 13 can be guided to penetrate, and the assembly is easier.

The through hole can penetrate through the fourth vibration damping section 14 to penetrate through the fastener for fixing. Or as shown in fig. 4, the fourth vibration damping section 14 has a limiting groove 15, the limiting groove 15 is communicated with the through hole, the inner wall of the limiting groove 15 has at least one limiting plane, and the limiting plane is used for limiting and matching with a structure placed in the limiting groove 15 so as to realize circumferential limiting. Thus, the through hole and the limiting groove 15 can penetrate through the whole damping piece to penetrate through the fastening piece to be fixed. Furthermore, the inner wall of the limiting groove 15 is provided with a limiting plane, so that the nut or other fastening piece placed in the limiting groove 15 can be limited circumferentially, and the assembly of the fastening piece is facilitated.

Specifically, the radial dimension of the first vibration damping section 11 is larger than that of the third vibration damping section 13, and the surfaces of both ends of the first vibration damping section 11 are flat. The first damping section 11 is located at one end of the damping member, and the radial dimension of the first damping section 11 is larger than the radial dimensions of the other damping sections. Therefore, the first vibration attenuation section 11 can be better matched with other structures to play the roles of limiting and absorbing vibration. Since the radial dimension of the third vibration damping section 13 is smaller than the radial dimension of the first vibration damping section 11, the penetration of the vibration damping member from the third vibration damping section 13 is facilitated when the vibration damping member is mounted.

According to still another embodiment of the present invention, there is provided a vibration damping assembly including a mounting bracket 21, a first fastening member 22, a second fastening member 23, and the vibration damping member 10 described above, the mounting bracket 21 having a fitting hole 24, the vibration damping member 10 passing through the fitting hole 24, the first vibration damping section 11 and the third vibration damping section 13 of the vibration damping member 10 being located on both sides of the fitting hole 24, the first fastening member 22 passing through the through hole of the vibration damping member 10, the second fastening member 23 being threadedly coupled to the first fastening member 22.

In this embodiment, the damping member 10 passes through the assembly hole 24, the first damping section 11 and the third damping section 13 are respectively located on two sides of the assembly hole 24, so as to ensure that the damping member 10 does not fall off after being assembled on the mounting frame 21, the first fastening member 22 passes through the through hole of the damping member 10 and is in threaded connection with the second fastening member 23, and the damping member 10 is compressed and fixed through connection between the fastening members. Wherein, the radial dimension of first damping section 11 and third damping section 13 is greater than the size of pilot hole, and both sides all can play limiting displacement after damping piece 10 passes pilot hole 24 like this, prevent to lead to droing because certain one side radial dimension is not more than the pilot hole size. Wherein the damping member is made of an elastic material, and the second damping section 12 is located in the assembly hole 24. Optionally, the radial dimension of the second damping section 12 is not smaller than the fourth damping section 14 and not larger than the third damping section 13, so as to ensure the limiting effect of the third damping section 13. Alternatively, the radial dimension of the second vibration damping section 12 should fit the fitting aperture within the range allowed by the elastic change, and may be equal to the fitting aperture or slightly larger or smaller than the fitting aperture. After the assembly is completed, the first fastening piece 22 and the second fastening piece 23 are screwed, and the third vibration attenuation section 13 is compressed, so that the third vibration attenuation section 13 is elastically deformed, the radial size is increased, and the limiting and buffering effects are better achieved.

As shown in fig. 4, the damping member 10 is the damping member 10, the first fastening member 22 has an external thread, the second fastening member 23 has an internal thread, the second fastening member 23 is located in the limiting groove 15 of the damping member 10, and an outer wall of the second fastening member 23 is in circumferential limiting fit with an inner wall of the limiting groove 15. The second fastening member 23 is located in the limiting groove 15 of the fourth vibration damping section 14 of the vibration damping member 10, and the outer wall of the second fastening member 23 is in limiting fit with the inner wall of the limiting groove 15 in the circumferential direction. The arrangement is such that the second fastening member 23 is located in the retaining groove 15, and the second fastening member 23 does not rotate during the fastening process of the fastening members, so that the first fastening member 22 can be screwed with the second fastening member 23 during the rotation of the first fastening member 22. Optionally, the thickness of the second fastening member 23 can be consistent with the depth of the limiting groove, and the appearance is attractive. Alternatively, the first fastener 22 is a bolt and the second fastener 23 is a nut.

In another embodiment, not shown, the first fastening member 22 has an external thread and the second fastening member 23 has an internal thread, the damping assembly further comprising a spacer on the side of the third damping section 13 facing away from the first damping section 11, the second fastening member 23 and the spacer abutting. The spacer is located on the side of the third damping section 13 facing away from the first damping section 11. When the fastener fastening, second fastener 23 butt gasket and then the third damping section 13 of compression and gasket other end butt, through second fastener 23 and gasket butt, the even dispersion of power of the fastening between messenger's fastener and the third damping section 13 is on the gasket, when better realization fastening, damping 10 has been protected, and axial compression and radial expansion have taken place for third damping section 13 under the pressure of gasket, thereby spacing and damping effect have better been played, structural reliability has been improved.

According to still another embodiment of the present invention, there is provided a motor assembly including a motor 31, a bracket 32 and the above-mentioned vibration damping module, the bracket 32 being fixedly connected to the motor 31, the bracket 32 having a connection hole 33, the first fastening member 22 of the vibration damping module passing through the connection hole 33 to fasten the bracket 32 to the mounting bracket 21 of the vibration damping module, the vibration damping member 10 of the vibration damping module spacing the bracket 32 from the mounting bracket 21. In this embodiment, the bracket 32 is fixedly connected with the motor 31, the bracket 32 is provided with a connecting hole 33, the connection between the motor 31 and the mounting frame 21 is realized through the bracket 32, the first fastening member 22 passes through the connecting hole 33, the bracket 32 is fixed on the mounting frame 21 through the fastening fit with the second fastening member 23, the bracket 32 and the mounting frame 21 are spaced apart by the damping member 10 through the first damping section 11, so as to realize the flexible connection between the bracket 32, the first damping section 11 and the mounting frame 21, and the rigid connection between the bracket 32 and the mounting frame 21 is replaced, so that a good damping effect is achieved on the motor 31, and the noise of the motor during operation is reduced. Moreover, by adopting the scheme, the vibration damping piece 10 can be installed in a penetrating hole, the inner wall of the assembly hole 24 can limit the vibration damping piece 10 at each circumferential position, and thus, the assembly mode of a clamping groove in the prior art is replaced, the vibration damping effect is guaranteed, the vibration damping piece 10 is prevented from being separated, and the connection reliability is improved.

Specifically, as shown in fig. 2, there are two brackets 32 and two damping members 10, the two damping members 10 are mounted on the same mounting frame 21, and the two brackets 32 and the two damping members 10 are disposed in one-to-one correspondence. This embodiment adopts two damping pieces 10, and two supports 32 and a mounting bracket 21 realize fixed to motor 31, and bearing capacity is also stronger, compares in the mode that the adoption U type groove that uses traditional thin rubber pad of two thick ends in the middle and need the restraint of three direction degrees of freedom with the motor fixed, and this embodiment has simple structure, occupation space is little, part quantity is few, advantages such as assembly efficiency height, can be applied to most damping occasions, for example car as a house air conditioner etc.. Wherein the bracket 32 may have an L-shaped configuration.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A damping piece, characterized in that the damping piece is made of an elastic material and is provided with a through hole, the damping piece comprises a first damping section (11), a second damping section (12) and a third damping section (13) which are connected in sequence, and the through hole penetrates through the first damping section (11), the second damping section (12) and the third damping section (13); the third vibration attenuation section (13) is of a structure with thick middle and thin two ends, and the maximum radial dimension of the third vibration attenuation section (13) is larger than that of the second vibration attenuation section (12).

2. Damping piece according to claim 1, characterized in that the third damping segment (13) is, in a section in the axial direction of the through hole, curved on the outer edge of the third damping segment (13).

3. The damping piece according to claim 1, characterized in that it further comprises a fourth damping section (14), the fourth damping section (14) being connected to an end of the third damping section (13) facing away from the second damping section (12), the radial dimension of the fourth damping section (14) being smaller than or equal to the smallest radial dimension of the third damping section (13).

4. Damping piece according to claim 3, characterized in that the through hole extends through the fourth damping section (14); or the fourth vibration reduction section (14) is provided with a limiting groove (15), the limiting groove (15) is communicated with the through hole, the inner wall of the limiting groove (15) is provided with at least one limiting plane, and the limiting plane is used for being matched with a structure placed in the limiting groove (15) in a limiting mode to realize circumferential limiting.

5. Damping piece according to claim 1, characterized in that the radial dimension of the first damping section (11) is larger than the radial dimension of the third damping section (13), the surfaces of both ends of the first damping section (11) being plane.

6. A vibration damping arrangement, characterized in that, the vibration damping arrangement comprises a mounting bracket (21), a first fastening member (22), a second fastening member (23) and the vibration damping member (10) of any one of claims 1 to 5, the mounting bracket (21) has a mounting hole (24), the vibration damping member (10) passes through the mounting hole (24), a first vibration damping section (11) and a third vibration damping section (13) of the vibration damping member (10) are respectively located at both sides of the mounting hole (24), the first fastening member (22) passes through a through hole of the vibration damping member (10), and the second fastening member (23) and the first fastening member (22) are in threaded connection.

7. The vibration damping assembly according to claim 6, characterized in that the vibration damping member (10) is the vibration damping member (10) according to claim 4, the first fastening member (22) has an external thread, the second fastening member (23) has an internal thread, the second fastening member (23) is located in the limiting groove (15) of the vibration damping member (10), and an outer wall of the second fastening member (23) and an inner wall of the limiting groove (15) are in circumferential limiting fit.

8. Damping assembly according to claim 6, characterized in that the first fastening member (22) has an external thread and the second fastening member (23) has an internal thread, the damping assembly further comprising a spacer on the side of the third damping section (13) facing away from the first damping section (11), the second fastening member (23) and the spacer abutting.

9. An electric motor component, characterized in that it comprises an electric motor (31), a bracket (32) and a damping assembly according to any one of claims 6 to 8, the bracket (32) and the electric motor (31) being fixedly connected, the bracket (32) having a connection hole (33), a first fastening member (22) of the damping assembly passing through the connection hole (33) to fix the bracket (32) on a mounting frame (21) of the damping assembly, a damping member (10) of the damping assembly spacing the bracket (32) from the mounting frame (21).

10. The machine component according to claim 9, characterized in that there are two brackets (32) and two damping members (10), and that the two damping members (10) are mounted on the same mounting frame (21), and that the two brackets (32) and the two damping members (10) are arranged in one-to-one correspondence.