Novel air conditioner compressor dynamic vibration absorber

Abstract

The utility model discloses a novel air conditioner compressor dynamic vibration absorber, and belongs to the technical field of automobile parts, the novel air conditioner compressor dynamic vibration absorber comprises a mass block, a rubber part and a support used for being connected to a frame, the support comprises a long-strip-shaped bottom plate, the two sides of the bottom plate are bent to form a connecting disc, the connecting disc is provided with a mounting hole, and the mounting hole is communicated with the rubber part. Supporting legs bent towards the mass block are arranged on the periphery of the connecting disc, the mass block is located in the middle of the support, the two ends of the mass block are installed on the connecting disc through rubber parts, the rubber parts partially penetrate through installation holes in the connecting disc, and the supporting legs are arranged on the periphery of the rubber parts and are spaced from the outer surfaces of the rubber parts. The structural arrangement of the vibration absorber is further optimized, large-amplitude vibration of the mass block is limited, the service life of the dynamic vibration absorber is prolonged, and the mass block is prevented from being disengaged to cause functional loss.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a novel dynamic vibration absorber for an air-conditioning compressor. Background Art

[0002] When a car encounters a bump or drives on a bumpy road, the excitation force generated by the road surface is transmitted to the car body through the tires and suspension system, which will excite the body panels to vibrate and produce a roar. This roar has an adverse effect on the driving experience of the car. In order to eliminate this roar, it is necessary to reduce the vibration caused by road excitation.

[0003] Vibration can usually be reduced by using vibration isolators or dynamic vibration absorbers. When the frequency of the excitation force is low, ordinary vibration isolators are not effective, while the vibration reduction effect of dynamic vibration absorbers is more obvious. Dynamic vibration absorbers are devices that use resonance systems to absorb the vibration energy of an object to reduce the vibration of the object. The basic principle of dynamic vibration absorbers is to attach a mass-spring resonance system to the vibrating object. The reaction force generated by this additional mass-spring resonance system during resonance can reduce the vibration of the vibrating object. The system composed of the vibrating object and the mass-spring resonance system can be regarded as consisting of a main spring-damping system (i.e., the vibrating object) and an additional spring system (mass-spring resonance system). The additional spring system generates a vibration that is 180° out of phase with the main spring-damping system, thereby offsetting the vibration of a certain frequency of the main spring-damping system.

[0004] Related prior art, such as the Chinese patent application "Dynamic Vibration Absorber", application number: CN201420650113.1; discloses: a bracket, a main shaft, a main mass block and an additional mass block. The bracket is connected to the frame. The two ends of the main shaft are mounted on the bracket through rubber pads, and the thickness of the rubber pads can be adjusted. The main mass block is fixedly connected to the middle of the main shaft. The additional mass block is mounted on the main shaft, located on both sides of the main mass block, the mass of the additional mass block can be adjusted, and the distance between the additional mass block and the main mass block can be adjusted. The dynamic vibration absorber of the utility model can absorb vibrations in all directions of the installation radial direction, and the vibration reduction frequency can be adjusted by adjusting the position of the additional mass block, and has a wider vibration absorption frequency range. The dynamic vibration absorber has a simple and reliable structure and strong flexibility.

[0005] In the prior art dynamic vibration absorber, under the extreme working conditions of the whole vehicle, the displacement of the mass movement will be too large, which is not conducive to the service life of the dynamic vibration absorber. Utility Model Content

[0006] The technical problem to be solved by the present application is to provide a new type of dynamic vibration absorber for air-conditioning compressor, further optimize the structural setting of the vibration absorber, limit the large vibration of the mass block, increase the service life of the dynamic vibration absorber, and prevent the mass block from falling out and causing functional loss.

[0007] The technical solution adopted in the present application is: a new type of air-conditioning compressor dynamic vibration absorber, including a mass block, a rubber part, and a bracket for connecting to a vehicle frame, the bracket including a long strip-shaped bottom plate, the two sides of the bottom plate are bent to form a connecting plate, the connecting plate is provided with a mounting hole, and the outer periphery of the connecting plate is provided with supporting legs bent toward the mass block, the mass block is located in the middle of the bracket, the two ends of the mass block are installed on the connecting plate through rubber parts, the rubber parts partially pass through the mounting holes on the connecting plate, and the supporting legs are arranged on the outer periphery of the rubber parts and are spaced apart from the outer surface of the rubber parts.

[0008] Compared with the prior art, the advantages of the present application are that, firstly, the present application installs the mass block on the bracket through the rubber parts on both sides, and the mass block and the rubber parts are elastically connected, thereby effectively realizing the vibration absorption effect of the present application at all angles. Secondly, the present application has the rubber parts partially pass through the mounting holes on the connecting plate, so the rubber parts are subjected to the force of the wall surface of the mounting holes to a certain extent, that is to say, under extreme working conditions, the connecting plate plays a role in limiting the large vibration of the mass block in the circumferential direction, improving the life of the dynamic vibration absorber, and preventing the mass block from falling out and causing functional loss. Thirdly, the present application further provides a support foot on the outer periphery of the connecting plate, and the support foot is bent toward the side where the mass block is bent, so that part of the rubber part is included in the support foot. The setting of the support foot further realizes the limitation of the deformation stroke of the rubber part, limits the large vibration of the mass block, improves the life of the dynamic vibration absorber, and prevents the mass block from falling out and causing functional loss; and no new components are required, reducing costs.

[0009] In some embodiments of the present application, the mass block is in an overall cylindrical structure, and both ends of the mass block are stepped truncated cone-shaped structural parts.

[0010] In some embodiments of the present application, the rubber part is integrally vulcanized with the mass block, and the rubber part covers the end of the mass block and the surface of the stepped truncated cone-shaped structural part. The present application adopts the method of integrally vulcanizing the rubber part with the mass block, and the rubber part and the connecting plate are connected by snap-fit, which is the preferred structural solution of the present application. The snap-fit ​​connection between the rubber part and the connecting plate enables the mass block to absorb vibrations in a larger frequency range.

[0011] In some embodiments of the present application, an extension piece is provided on one side of the rubber piece toward the connection disk, a portion of the extension piece passes through the mounting hole, and the rubber piece is clamped with the connection disk through the extension piece.

[0012] In some embodiments of the present application, the mounting hole is a waist-shaped hole, the cross section of the extension piece is a runway-shaped hole whose size is larger than the waist-shaped hole, a slot is provided on the outer circumference of the extension piece, the slot is adapted to the waist-shaped hole, and the connecting plate is partially embedded in the slot. The non-circular mounting hole and the non-circular extension piece are used to achieve different vibration absorption effects in different directions of the present application.

[0013] In some embodiments of the present application, a foot is provided on both sides of the length direction of the mounting hole, a foot is provided on one side of the mounting hole in the width direction, and the other side is a bottom plate. That is, in the solution of the present application, a foot is provided on three directions of the connecting plate, and a total of three feet surround the outer periphery of the rubber part, which is a preferred solution of the present application in conjunction with the setting of the bottom plate.

[0014] In some embodiments of the present application, the three legs form a circular ring whose inner diameter is smaller than the outer diameter of the mass block, and there is an axial distance between the end face of the legs and the mass block and the rubber member. That is, the arrangement of the leg structure achieves the limit travel of the legs to the mass block and the rubber block in the axial direction, limits the large vibration of the mass block, increases the life of the dynamic vibration absorber, and prevents the mass block from falling out and causing functional loss; and no new components are required, reducing costs.

[0015] In some embodiments of the present application, an inward depression is provided at the connection between the bottom plate and the connection plate. The depression structure effectively improves the structural strength of the connection plate, and further improves the structural strength of the bracket.

[0016] In some embodiments of the present application, there is an acute angle between the bottom plate and the length direction of the mounting hole, and the bottom plate extends outward from one side close to the mounting hole to form an extension plate, and the extension plate is provided with an assembly hole. That is, in the technical solution of the present application, the extension plate is used for mounting with the frame.

[0017] The bracket in the present application includes a base plate, an extension plate, and two connecting plates, and the entire bracket is formed in one piece, which effectively ensures the structural strength of the bracket.

[0018] In some embodiments of the present application, there is an obtuse angle between the extension plate and the bottom plate, and the extension plate is parallel to the length direction of the mounting hole. That is, after the present application is installed, there are two legs in the direction of the mounting surface, which is a preferred solution of the present application.

[0019] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 A side view of the present application;

[0023] Figure 3 for Figure 2 Cross-sectional view of section AA.

[0024] Among them, the specific description of the figure numbers is as follows: 1. mass block; 2. rubber part; 21. extension part; 3. bracket; 31. bottom plate; 32. connecting plate; 33. mounting hole; 34. support foot; 35. extension plate; 4. depression. DETAILED DESCRIPTION

[0025] The present application is described in detail below in conjunction with the accompanying drawings.

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] A novel air-conditioning compressor dynamic vibration absorber, embodiment 1 Figures 1 to 3 As shown: it includes a mass block 1, a rubber member 2, and a bracket 3 for connecting to a vehicle frame, wherein the bracket 3 includes a long strip bottom plate 31, and the bottom plate 31 is bent at both sides to form a connecting plate 32, and the connecting plate 32 is provided with a mounting hole 33, and the mass block 1 is located in the middle of the bracket 3, and the two ends of the mass block 1 are mounted on the connecting plate 32 through the rubber member 2. The mass block 1 and the rubber member 2 are elastically connected, thereby effectively realizing the vibration absorption effect of the present application at various angles.

[0028] The rubber component 2 partially passes through the mounting hole 33 on the connecting plate 32, so the rubber component 2 is subjected to the force of the wall of the mounting hole 33 to a certain extent. That is to say, under extreme working conditions, the connecting plate 32 limits the large vibration of the mass block 1 in the circumferential direction, thereby increasing the service life of the dynamic vibration absorber and preventing the mass block 1 from falling out and causing functional loss.

[0029] The outer periphery of the connection plate 32 is provided with a support leg 34 bent toward the mass block 1, and the support leg 34 is provided at the outer periphery of the rubber member 2 and is spaced apart from the outer surface of the rubber member 2. That is, part of the rubber member 2 is included in the support leg 34, and the setting of the support leg 34 further limits the deformation stroke of the rubber member 2, limits the large vibration of the mass block 1, improves the service life of the dynamic vibration absorber, prevents the mass block 1 from falling out and causing functional loss, and does not require new components, thereby reducing costs.

[0030] Embodiment 2, as Figures 1 to 3 As shown, the mass block 1 is in a cylindrical structure as a whole, and both ends of the mass block 1 are stepped truncated cone-shaped structural parts.

[0031] The rubber part 2 is vulcanized integrally with the mass block 1, and the rubber part 2 covers the end of the mass block 1 and the surface of the stepped truncated cone-shaped structure. The rubber part 2 is vulcanized integrally with the mass block 1 in this application, and the rubber part 2 and the connecting plate 32 are snap-connected, which is the preferred structural solution of this application. The snap-connection of the rubber part 2 and the connecting plate 32 enables the mass block 1 to absorb vibrations in a larger frequency range.

[0032] The rubber member 2 is provided with an extension member 21 on one side of the connection plate 32 . A portion of the extension member 21 passes through the mounting hole 33 . The rubber member 2 is connected to the connection plate 32 via the extension member 21 .

[0033] The mounting hole 33 is a waist-shaped hole, the cross section of the extension piece 21 is a runway shape with a size larger than the waist-shaped hole, a slot is provided on the outer circumference of the extension piece 21, the slot is adapted to the waist-shaped hole, and the connection plate 32 is partially embedded in the slot. The non-circular mounting hole 33 and the non-circular extension piece 21 are used to achieve different vibration absorption effects in different directions of the present application.

[0034] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0035] Embodiment three, as Figures 1 to 3 As shown, a foot 34 is provided on both sides of the length direction of the mounting hole 33, and a foot 34 is provided on one side of the width direction of the mounting hole 33, and the other side is the bottom plate 31. That is, in the solution of the present application, a foot 34 is provided on three directions of the connecting plate 32, and a total of three feet 34 surround the outer periphery of the rubber member 2, which is matched with the setting of the bottom plate 31, and is the preferred solution of the present application.

[0036] The three legs 34 form a circular ring whose inner diameter is smaller than the outer diameter of the mass block 1, and there is an axial distance between the end surface of the legs 34 and the mass block 1 and the rubber member 2. That is, the arrangement of the legs 34 structure achieves the limit travel of the legs 34 on the mass block 1 and the rubber block in the axial direction, limits the large vibration of the mass block 1, increases the service life of the dynamic vibration absorber, and prevents the mass block 1 from coming out and causing functional loss; and no additional components are required, thereby reducing costs.

[0037] The connection between the bottom plate 31 and the connection plate 32 is provided with an inward depression 4. The structural setting of the depression 4 effectively improves the structural strength of the place, and further improves the structural strength of the bracket 3.

[0038] There is an acute angle between the bottom plate 31 and the length direction of the mounting hole 33. The bottom plate 31 extends outward from one side close to the mounting hole 33 to form an extension plate 35. The extension plate 35 is provided with an assembly hole. That is, in the technical solution of the present application, the extension plate 35 is used for mounting with the frame.

[0039] The bracket 3 in the present application includes a bottom plate 31 , an extension plate 35 , and two connection plates 32 , and the entire bracket 3 is formed in one piece, which effectively ensures the structural strength of the bracket 3 .

[0040] There is an obtuse angle between the extension plate 35 and the bottom plate 31, and the extension plate 35 is parallel to the length direction of the mounting hole 33. That is, after the present application is installed, there are two legs 34 in the direction of the mounting surface, which is a preferred solution of the present application.

[0041] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0042] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A new type of air-conditioning compressor dynamic vibration absorber, characterized in that: The vehicle comprises a mass block (1), a rubber member (2), and a bracket (3) for connecting to a vehicle frame, wherein the bracket (3) comprises a long strip-shaped bottom plate (31), the bottom plate (31) is bent at both sides to form a connecting plate (32), the connecting plate (32) is provided with a mounting hole (33), and the outer periphery of the connecting plate (32) is provided with a support leg (34) bent toward the mass block (1), the mass block (1) is located in the middle of the bracket (3), the two ends of the mass block (1) are mounted on the connecting plate (32) through the rubber member (2), a portion of the rubber member (2) passes through the mounting hole (33) on the connecting plate (32), and the support leg (34) is arranged on the outer periphery of the rubber member (2) and is spaced apart from the outer surface of the rubber member (2).

2. A novel air-conditioning compressor dynamic vibration absorber according to claim 1, characterized in that: The mass block (1) is in the form of a cylindrical structure as a whole, and both ends of the mass block (1) are stepped truncated cone-shaped structural parts.

3. A novel dynamic vibration absorber for air-conditioning compressor according to claim 2, characterized in that: The rubber component (2) and the mass block (1) are integrally vulcanized and formed, and the rubber component (2) covers the end of the mass block (1) and the surface of the stepped frustum-conical structure component.

4. The novel dynamic vibration absorber for air-conditioning compressor according to claim 3 is characterized in that: An extension piece (21) is provided on the side of the rubber piece (2) facing the connection plate (32), a portion of the extension piece (21) passes through the mounting hole (33), and the rubber piece (2) is clamped with the connection plate (32) via the extension piece (21).

5. The novel dynamic vibration absorber for air-conditioning compressor according to claim 4 is characterized in that: The mounting hole (33) is a waist-shaped hole, the cross-section of the extension piece (21) is a runway shape having a size larger than the waist-shaped hole, a slot is provided on the outer peripheral surface of the extension piece (21), the slot is adapted to the waist-shaped hole, and the connection plate (32) is partially embedded in the slot.

6. The novel dynamic vibration absorber for air-conditioning compressor according to claim 5 is characterized in that: A foot (34) is provided on both sides of the mounting hole (33) in the length direction, and a foot (34) is provided on one side of the mounting hole (33) in the width direction, and the other side is a bottom plate (31).

7. A novel dynamic vibration absorber for air-conditioning compressor according to claim 6, characterized in that: The three support legs (34) form a circular ring whose inner diameter is smaller than the outer diameter of the mass block (1), and there is an axial distance between the end faces of the support legs (34) and the mass block (1) and the rubber member (2).

8. The novel air-conditioning compressor dynamic vibration absorber according to claim 1 is characterized in that: An inward recess (4) is provided at the connection between the bottom plate (31) and the connection plate (32).

9. The novel dynamic vibration absorber for air-conditioning compressor according to claim 1 is characterized in that: An acute angle is formed between the bottom plate (31) and the mounting hole (33) in the length direction. A side of the bottom plate (31) close to the mounting hole (33) extends outward to form an extension plate (35). The extension plate (35) is provided with an assembly hole.

10. The novel dynamic vibration absorber for air-conditioning compressor according to claim 9 is characterized in that: An obtuse angle exists between the extension plate (35) and the bottom plate (31), and the extension plate (35) is parallel to the length direction of the mounting hole (33).

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