Vibration damping parts, vibration damping components and motor parts

Abstract

The present invention provides a vibration damping member, a vibration damping assembly and a motor component. The vibration damping member is made of an elastic material, has a through hole, comprises a first vibration damping section, a second vibration damping section and a third vibration damping section connected in sequence, and the through hole penetrates the first vibration damping section, the second vibration damping section and the third vibration damping section; wherein the third vibration damping section is a structure with a thick middle and thin ends, and the maximum radial dimension of the third vibration damping section is greater than the radial dimension of the second vibration damping section. Since the third vibration damping section of the vibration damping member is a structure with a thick middle and thin ends, the third vibration damping section can be easily passed through the assembly hole of a structure such as a mounting frame through the guiding effect of the thinner end. Through the technical solution provided by the present invention, the vibration damping member can be installed by inserting it into the hole, and the inner wall of the assembly hole can limit the vibration damping member at each circumferential position, replacing the assembly method of the card slot in the prior art, thereby ensuring the vibration damping effect on the motor and other components while improving the connection reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of motor vibration reduction, and in particular to a vibration reduction member, a vibration reduction assembly and a motor component. Background Art

[0002] Components such as motors will vibrate during operation, and vibration will generate noise and may cause the connection structure to loosen. In order to cushion the vibration of the motor, a rubber pad or other structure is usually set at the connection position between the motor and the mounting frame. In order to improve the vibration reduction effect and avoid rigid connection, some rubber pads are made into a structure that is thin in the middle and thick at both ends. However, this structure is difficult to insert into a hole with a smaller diameter than the rubber pad. Therefore, in order to achieve assembly, an assembly hole cannot be set on the motor or the mounting frame. Instead, a slot, such as a U-shaped slot, is set on the motor or the mounting frame to clip the rubber pad into the slot. However, when the slot is used, the rubber pad is easy to loosen at the opening of the slot, and the reliability is poor. Therefore, it is necessary to design a new vibration damping component to improve the connection reliability while ensuring the vibration reduction effect. Summary of the invention

[0003] The present invention provides a vibration damping member, a vibration damping assembly and a motor component, so that the vibration damping member can be easily inserted into an assembly hole, thereby improving connection reliability while ensuring vibration damping effect.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, the present invention provides a vibration damper, which is made of elastic material, has a through hole, and includes a first vibration damper section, a second vibration damper section and a third vibration damper section connected in sequence, and the through hole runs through the first vibration damper section, the second vibration damper section and the third vibration damper section; wherein the third vibration damper section is a structure that is thick in the middle and thin at both ends, and the maximum radial dimension of the third vibration damper section is greater than the radial dimension of the second vibration damper section.

[0005] Further, in the axial cross section of the through hole, the outer edge of the third vibration damping section is an arc.

[0006] Furthermore, the vibration damping component also includes a fourth vibration damping section, which is connected to an end of the third vibration damping section that faces away from the second vibration damping section, and a radial dimension of the fourth vibration damping section is less than or equal to a minimum radial dimension of the third vibration damping section.

[0007] Furthermore, the through hole passes through the fourth vibration damping section; or the fourth vibration damping section has a limiting groove, the limiting groove and the through hole are connected, the inner wall of the limiting groove has at least one limiting plane, and the limiting plane is used to cooperate with the structure placed in the limiting groove to achieve circumferential limitation.

[0008] Furthermore, the radial dimension of the first vibration-damping section is greater than the radial dimension of the third vibration-damping section, and surfaces at both ends of the first vibration-damping section are both planes.

[0009] According to another aspect of the present invention, a vibration damping assembly is provided, which includes a mounting frame, a first fastener, a second fastener and the above-mentioned vibration damping member, the mounting frame has an assembly hole, the vibration damping member passes through the assembly hole, the first vibration damping section and the third vibration damping section of the vibration damping member are respectively located on both sides of the assembly hole, the first fastener passes through the through hole of the vibration damping member, and the second fastener is threadedly connected to the first fastener.

[0010] Further, the vibration damper is the above vibration damper, the first fastener has an external thread, the second fastener has an internal thread, the second fastener is located in the limiting groove of the vibration damper, and the outer wall of the second fastener and the inner wall of the limiting groove are circumferentially limited.

[0011] Furthermore, the first fastener has an external thread, the second fastener has an internal thread, the vibration reduction assembly further comprises a gasket, the gasket is located on a side of the third vibration reduction section away from the first vibration reduction section, and the second fastener abuts against the gasket.

[0012] According to another aspect of the present invention, a motor component is provided, wherein the motor component includes a motor, a bracket and the above-mentioned vibration reduction assembly, the bracket and the motor are fixedly connected, the bracket has a connecting hole, a first fastener of the vibration reduction assembly passes through the connecting hole to fix the bracket on the mounting frame of the vibration reduction assembly, and the vibration reduction member of the vibration reduction assembly separates the bracket and the mounting frame.

[0013] Furthermore, there are two brackets and two vibration damping members, the two vibration damping members are mounted on the same mounting frame, and the two brackets and the two vibration damping members are arranged in one-to-one correspondence.

[0014] The technical scheme of the present invention is applied to provide a vibration damper, which is made of elastic material and has a through hole. The vibration damper includes a first vibration damping section, a second vibration damping section and a third vibration damping section connected in sequence, and the through hole runs through the first vibration damping section, the second vibration damping section and the third vibration damping section; wherein the third vibration damping section is a structure with a thick middle and thin ends, and the maximum radial dimension of the third vibration damping section is greater than the radial dimension of the second vibration damping section. In this scheme, since the third vibration damping section of the vibration damper is a structure with a thick middle and thin ends, the third vibration damping section can be easily passed through the assembly hole of a structure such as a mounting frame through the guiding effect of the thinner end. Specifically, when the vibration damper is inserted, the thinner end of the third vibration damping section is first inserted into the assembly hole. During the insertion process, the thinner end plays a guiding role, so that the thicker middle part of the third vibration damping section is easy to elastically shrink and pass through the assembly hole. During the process of the third vibration damping section passing through the assembly hole, the second vibration damping section with a smaller radial dimension can easily enter the assembly hole. After the vibration damper is inserted into place, the second vibration damper section is located in the assembly hole, and the third vibration damper section and the first vibration damper section are respectively located on both sides of the assembly hole, so that the vibration damper can be coordinated with fasteners, motors and other structures to achieve a vibration damping effect. The vibration damper can be installed by inserting it into the hole, and the inner wall of the assembly hole can limit the vibration damper at various positions in the circumferential direction, which replaces the assembly method of the card slot in the prior art, thereby ensuring the vibration damping effect while improving the connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the assembly structure of a motor component provided by an embodiment of the present invention is shown;

[0017] Figure 2 Shows Figure 1 Exploded view of the motor components;

[0018] Figure 3 Shows Figure 1 A cross-sectional view of a motor component;

[0019] Figure 4 Shows Figure 3 A partial magnified image of the selected area.

[0020] The above drawings include the following reference numerals:

[0021] 10. Vibration damping member; 11. First vibration damping section; 12. Second vibration damping section; 13. Third vibration damping section; 14. Fourth vibration damping section; 15. Limiting groove; 21. Mounting frame; 22. First fastener; 23. Second fastener; 24. Assembly hole; 31. Motor; 32. Bracket; 33. Connecting hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 4 As shown, an embodiment of the present invention provides a vibration damper, which is made of elastic material and has a through hole. The vibration damper includes a first vibration damper section 11, a second vibration damper section 12 and a third vibration damper section 13 connected in sequence, and the through hole runs through the first vibration damper section 11, the second vibration damper section 12 and the third vibration damper section 13; wherein the third vibration damper section 13 is a structure that is thick in the middle and thin at both ends, and the maximum radial dimension of the third vibration damper section 13 is greater than the radial dimension of the second vibration damper section 12.

[0024] In this embodiment, the vibration damper is made of elastic material, which can effectively isolate and buffer vibration. The vibration damper includes a first vibration damper section 11, a second vibration damper section 12 and a third vibration damper section 13 connected in sequence. The vibration damper includes a through hole, which runs through the above vibration damper sections to facilitate the assembly of subsequent fasteners. The third vibration damper section 13 is a structure with a thick middle and thin ends. The entire vibration damper is made of elastic material. The thicker middle part of the third vibration damper section 13 is prone to elastic deformation, contraction and expansion. Through the guiding effect of the thinner end of the third vibration damper section 13, the third vibration damper section 13 can be easily passed through the assembly hole 24 of the mounting frame 21 and other structures.

[0025] Specifically, when the third vibration-damping section 13 passes through the assembly hole 24, the second vibration-damping section 12 with a smaller radial dimension enters the assembly hole 24. After the vibration-damping component is inserted, the second vibration-damping section 12 is located in the assembly hole 24, and the third vibration-damping section 13 and the first vibration-damping section 11 are respectively located on both sides of the assembly hole 24, so that they can cooperate with the fasteners, the motor 31 and other structures to achieve a vibration-damping effect.

[0026] The vibration damper can be installed by inserting it into the hole. The inner wall of the assembly hole 24 can limit the vibration damper at various positions in the circumferential direction. This replaces the assembly method of the slot in the prior art, thereby ensuring the vibration damping effect while improving the connection reliability.

[0027] Specifically, the radial dimension can be understood as the dimension in the diameter direction of the through hole; the elastic material can be selected from rubber, silicone and the like.

[0028] Furthermore, the outer edge of the third vibration-damping section 13 is an arc in the cross section of the through hole in the axial direction. The third vibration-damping section 13 is connected to the second vibration-damping section 12, and the third vibration-damping section 13 contains a through hole corresponding to the through hole in the second vibration-damping section 12. The outer edge of the third vibration-damping section 13 is an arc with a high middle and low sides, so that it is easy to insert when installing the vibration-damping component. After the installation is completed, the third vibration-damping section 13 can play a role in vibration reduction and preventing movement or falling off.

[0029] Specifically, the vibration damping member further includes a fourth vibration damping segment 14, which is connected to an end of the third vibration damping segment 13 that is away from the second vibration damping segment 12, and the radial dimension of the fourth vibration damping segment 14 is less than or equal to the minimum radial dimension of the third vibration damping segment 13. In this embodiment, the fourth vibration damping segment 14 is connected to the third vibration damping segment 13 of the first vibration damping segment 11, the second vibration damping segment 12, and the third vibration damping segment 13 that are connected in sequence, so that the vibration damping member includes the first vibration damping segment 11, the second vibration damping segment 12, the third vibration damping segment 13, and the fourth vibration damping segment 14 that are connected in sequence. The radial dimension of the fourth vibration damping segment 14 is less than or equal to the minimum radial dimension of the third vibration damping segment 13, and the radial dimension of the fourth vibration damping segment 14 should ensure that it can pass through the assembly aperture and guide the third vibration damping segment 13 to pass through the assembly hole 24. When installing the vibration damping member, the fourth vibration damping segment 14 is inserted first, which can guide the insertion of the third vibration damping segment 13 and make it easier to assemble.

[0030] The through hole may penetrate the fourth vibration-damping section 14 so as to be fixed by fasteners. Figure 4 As shown, the fourth vibration damping section 14 has a limiting groove 15, the limiting groove 15 is connected to the through hole, and the inner wall of the limiting groove 15 has at least one limiting plane, which is used to cooperate with the structure placed in the limiting groove 15 to achieve circumferential limiting. In this way, the through hole and the limiting groove 15 can pass through the entire vibration damping component to be fixed by fasteners. Moreover, the inner wall of the limiting groove 15 has a limiting plane, so that the nut or other fastener placed in the limiting groove 15 can be circumferentially limited, so as to facilitate the assembly of the fastener.

[0031] Specifically, the radial dimension of the first vibration-damping section 11 is greater than the radial dimension of the third vibration-damping section 13, and the surfaces at both ends of the first vibration-damping section 11 are both planes. The first vibration-damping section 11 is located at one end of the vibration-damping member, and the radial dimension of the first vibration-damping section 11 is greater than the radial dimensions of other vibration-damping sections. In this way, the first vibration-damping section 11 can better cooperate with other structures to play a role in limiting and buffering 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, when installing the vibration-damping member, it is convenient to insert the vibration-damping member into the assembly hole by inserting it from the third vibration-damping section 13.

[0032] According to another embodiment of the present invention, a vibration damping assembly is provided, which includes a mounting frame 21, a first fastener 22, a second fastener 23 and the above-mentioned vibration damping member 10, the mounting frame 21 has an assembly hole 24, the vibration damping member 10 passes through the assembly hole 24, the first vibration damping section 11 and the third vibration damping section 13 of the vibration damping member 10 are respectively located on both sides of the assembly hole 24, the first fastener 22 passes through the through hole of the vibration damping member 10, and the second fastener 23 is threadedly connected to the first fastener 22.

[0033] In this embodiment, the vibration damper 10 passes through the assembly hole 24, the first vibration damper section 11 and the third vibration damper section 13 are respectively located on both sides of the assembly hole 24, ensuring that the vibration damper 10 will not fall off after being assembled on the mounting frame 21, and the first fastener 22 passes through the through hole of the vibration damper 10 and is threadedly connected with the second fastener 23, and the vibration damper 10 is pressed and fixed by the connection between the fasteners. Among them, the radial dimensions of the first vibration damper section 11 and the third vibration damper section 13 are larger than the dimensions of the assembly hole, so that after the vibration damper 10 passes through the assembly hole 24, both sides can play a limiting role to prevent the vibration damper 10 from falling off due to the radial dimension of one side not being larger than the dimension of the assembly hole. Among them, the vibration damper is an elastic material, and the second vibration damper section 12 is located in the assembly hole 24. Optionally, the radial dimension of the second vibration damper section 12 is not less than the fourth vibration damper section 14 and not larger than the third vibration damper section 13, so as to ensure the limiting role of the third vibration damper section 13. Optionally, the radial dimension of the second vibration-damping section 12 should be assembled with the assembly aperture within the range allowed by the elastic change, and can be equal to the assembly aperture or slightly larger or smaller than the assembly aperture. After the assembly is completed, the first fastener 22 and the second fastener 23 are tightened to compress the third vibration-damping section 13, so that the third vibration-damping section 13 undergoes elastic deformation and increases its radial dimension, thereby better playing the role of limiting and buffering.

[0034] like Figure 4As shown, the vibration damper 10 is the above-mentioned vibration damper 10, the first fastener 22 has an external thread, the second fastener 23 has an internal thread, the second fastener 23 is located in the limiting groove 15 of the vibration damper 10, and the outer wall of the second fastener 23 and the inner wall of the limiting groove 15 are circumferentially limited. The second fastener 23 is located in the limiting groove 15 of the fourth vibration damping section 14 of the vibration damper 10, and the outer wall of the second fastener 23 and the inner wall of the limiting groove 15 are circumferentially limited. In this way, the second fastener 23 is located in the limiting groove 15, and the second fastener 23 will not rotate during the fastening process of the fastener, so that the first fastener 22 can be threadedly connected with the second fastener 23 during the rotation of the first fastener 22. Optionally, the thickness of the second fastener 23 can be consistent with the depth of the limiting groove, and the shape is beautiful. Optionally, the first fastener 22 is a bolt and the second fastener 23 is a nut.

[0035] In another embodiment not shown in the figure, the first fastener 22 has an external thread, the second fastener 23 has an internal thread, and the vibration damping assembly further includes a gasket, which is located on the side of the third vibration damping section 13 away from the first vibration damping section 11, and the second fastener 23 abuts against the gasket. The gasket is located on the side of the third vibration damping section 13 away from the first vibration damping section 11. When the fastener is tightened, the second fastener 23 abuts against the gasket and then compresses the third vibration damping section 13 abutting against the other end of the gasket. The second fastener 23 abuts against the gasket, so that the tightening force between the fastener and the third vibration damping section 13 is evenly dispersed on the gasket, so that the tightening is better achieved while protecting the vibration damping member 10, and the third vibration damping section 13 is axially compressed and radially expanded under the pressure of the gasket, thereby achieving better limiting and vibration damping effects and improving structural reliability.

[0036] According to another embodiment of the present invention, a motor component is provided, which includes a motor 31, a bracket 32 ​​and the above-mentioned vibration reduction assembly, the bracket 32 ​​and the motor 31 are fixedly connected, the bracket 32 ​​has a connecting hole 33, the first fastener 22 of the vibration reduction assembly passes through the connecting hole 33 to fix the bracket 32 ​​on the mounting frame 21 of the vibration reduction assembly, and the vibration reduction member 10 of the vibration reduction assembly separates the bracket 32 ​​and the mounting frame 21. In this embodiment, the bracket 32 ​​is fixedly connected to the motor 31, and the bracket 32 ​​has a connection hole 33. The connection between the motor 31 and the mounting frame 21 is realized through the bracket 32. The first fastener 22 passes through the connection hole 33, and the bracket 32 ​​is fixed to the mounting frame 21 by fastening with the second fastener 23. The vibration damper 10 separates the bracket 32 ​​and the mounting frame 21 through the first vibration damping section 11 to achieve a flexible connection between the bracket 32, the first vibration damping section 11 and the mounting frame 21, replacing the rigid connection between the bracket 32 ​​and the mounting frame 21, thereby achieving a good vibration damping effect on the motor 31 and reducing the noise of the motor during operation. Moreover, by adopting this scheme, the vibration damper 10 can be installed by inserting it into the hole, and the inner wall of the assembly hole 24 can limit the vibration damper 10 at various positions in the circumferential direction, which replaces the assembly method of the card slot in the prior art, thereby ensuring the vibration damping effect while avoiding the vibration damper 10 from coming out, and improving the connection reliability.

[0037] Specifically, Figure 2 As shown, there are two brackets 32 and two vibration dampers 10, and the two vibration dampers 10 are installed on the same mounting frame 21, and the two brackets 32 and the two vibration dampers 10 are arranged one by one. This embodiment uses two vibration dampers 10, two brackets 32 and one mounting frame 21 to fix the motor 31, and the bearing capacity is also strong. Compared with the traditional method of using a rubber pad with a thin middle and thick ends and a U-shaped groove to fix the motor that requires three-directional freedom constraints, this embodiment has the advantages of simple structure, small space occupation, small number of parts, high assembly efficiency, etc., and can be applied to most vibration reduction occasions, such as RV air conditioners, etc. Among them, the bracket 32 ​​can adopt an L-shaped structure.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibration reduction assembly, characterized in that: The vibration damping assembly comprises a mounting frame (21), a first fastener (22), a second fastener (23) and a vibration damping member (10); the vibration damping member (10) is made of an elastic material; the vibration damping member (10) has a through hole; the vibration damping member (10) comprises a first vibration damping section (11), a second vibration damping section (12) and a third vibration damping section (13) which are connected in sequence; the through hole passes through the first vibration damping section (11), the second vibration damping section (12) and the third vibration damping section (13); wherein the third vibration damping section (11) is The vibration damping section (13) is a structure that is thick in the middle and thin at both ends; the maximum radial dimension of the third vibration damping section (13) is greater than the radial dimension of the second vibration damping section (12); the outer edge of the third vibration damping section (13) in the axial cross section of the through hole is an arc; the vibration damping member (10) further comprises a fourth vibration damping section (14); the fourth vibration damping section (14) is connected to an end of the third vibration damping section (13) that is away from the second vibration damping section (12); the fourth vibration damping section (14) is connected to an end of the third vibration damping section (13) that is away from the second vibration damping section (12); 4) has a radial dimension that is less than or equal to the minimum radial dimension of the third vibration damping section (13); the through hole penetrates the fourth vibration damping section (14); the fourth vibration damping section (14) has a limiting groove (15), the limiting groove (15) is connected to the through hole, the inner wall of the limiting groove (15) has at least one limiting plane, the limiting plane is used to cooperate with the structure placed in the limiting groove (15) to achieve circumferential limiting; the radial dimension of the first vibration damping section (11) is greater than that of the third vibration damping section The mounting frame (21) has a mounting hole (24), the vibration damping member (10) passes through the mounting hole (24), the first vibration damping section (11) and the third vibration damping section (13) of the vibration damping member (10) are respectively located on both sides of the mounting hole (24), the first fastener (22) passes through the through hole of the vibration damping member (10), and the second fastener (23) is threadedly connected to the first fastener (22).

2. The vibration reduction assembly according to claim 1, characterized in that: The first fastener (22) has an external thread, the second fastener (23) has an internal thread, the second fastener (23) is located in the limiting groove (15) of the vibration damping component (10), and the outer wall of the second fastener (23) and the inner wall of the limiting groove (15) are matched in a circumferential limiting manner.

3. The vibration reduction assembly according to claim 1, characterized in that: The first fastener (22) has an external thread, the second fastener (23) has an internal thread, the vibration damping assembly further comprises a gasket, the gasket is located on a side of the third vibration damping section (13) away from the first vibration damping section (11), and the second fastener (23) abuts against the gasket.

4. A motor component, characterized in that: The motor component comprises a motor (31), a bracket (32) and a vibration reduction assembly according to any one of claims 1 to 3, wherein the bracket (32) and the motor (31) are fixedly connected, the bracket (32) has a connecting hole (33), a first fastener (22) of the vibration reduction assembly passes through the connecting hole (33) to fix the bracket (32) on a mounting frame (21) of the vibration reduction assembly, and a vibration reduction member (10) of the vibration reduction assembly separates the bracket (32) and the mounting frame (21).

5. The motor component according to claim 4, characterized in that There are two brackets (32), there are two vibration damping members (10), the two vibration damping members (10) are mounted on the same mounting frame (21), and the two brackets (32) and the two vibration damping members (10) are arranged in a one-to-one correspondence.

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