Vibration reduction components, compressors and air conditioning systems

Abstract

The present application provides a vibration reduction assembly, a compressor and an air conditioning system. The vibration reduction assembly includes a chassis, a vibration reduction block and a fastener, one end of the fastener is arranged on the chassis through the vibration reduction block; the vibration reduction block can reduce the vibration transmission between the chassis and the fastener. The vibration reduction block is arranged between the fastener and the chassis to ensure that the vibration between the two can be completely attenuated through the vibration reduction block, thereby avoiding the generation of abnormal noise.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioners, and specifically relates to a vibration reduction component, a compressor and an air conditioning system. Background Art

[0002] The traditional structure of the compressor rubber pad shock absorber is that the rubber pad is set between the chassis and the base, and the bolt passes through the rubber pad to connect the chassis and the compressor base. This method has two disadvantages:

[0003] 1. The bolts are welded to the chassis. During installation, transportation and operation of the compressor, the inner wall of the rubber foot pad can easily hit the bolts, and the vibration of the compressor will be directly transmitted to the chassis through the rubber foot pad and the bolts, causing the outer shell to vibrate and produce abnormal noise. During transportation, the vibration will be transmitted from the chassis to the compressor through the bolts and rubber foot pads. Especially for compressors with a higher center of gravity, this vibration transmission will cause the compressor to shake significantly, the pipeline transportation stress will be too large, and in more serious cases, the pipeline will break.

[0004] 2. The rubber foot pad lacks a limit device, and the rubber foot pad is easy to touch the bolt when sliding. During the operation of the compressor, the vibration of the compressor will be directly transmitted to the chassis through the rubber foot pad and the bolt, causing the foot pad to fail to reduce vibration. Long-term operation will cause the rubber foot pad to wear and affect the service life of the rubber foot pad.

[0005] Some adopt the method of embedding upper fasteners and lower fasteners in the compressor foot pads to connect the compressor and the chassis, so that the compressor and the chassis become elastically connected instead of rigidly connected, so that the vibration of the compressor will be absorbed and reduced by the elastic foot pads in the process of being transmitted to the chassis, thereby reducing the vibration of the whole machine and the noise caused by the vibration. However, the upper fasteners of this elastic foot pad and the compressor, and the lower fasteners and the chassis are fixed by nuts, and there is still a rigid connection, which has a poor attenuation effect on the transmission of the compressor vibration to the chassis, and the structure itself lacks stability and is complex.

[0006] In addition, by fixing metal plates at the upper and lower ends of the vibration damping body and setting screws on at least one metal plate, the positioning bolts used in the existing installation of the vibration damping pad are eliminated, and the influence of the matching clearance between the inner hole wall of the vibration damping pad and the positioning bolt on the vibration damping effect of the vibration damping pad is eliminated from the root, so that the vibration damping effect of the vibration damping pad is better. However, there is a rigid connection between the vibration damping device and the chassis, and the vibration of the compressor will still be directly transmitted to the chassis, causing the shell to vibrate and produce abnormal noise. Summary of the invention

[0007] Therefore, the technical problem to be solved by the present application is to provide a vibration reduction assembly, a compressor and an air conditioning system, which can reduce the vibration transmission between the chassis and the shock absorbing device.

[0008] In order to solve the above problems, the present application provides a vibration damping assembly, including a chassis, a vibration damping block and a fastener, one end of the fastener is arranged on the chassis through the vibration damping block; the vibration damping block can weaken the vibration transmission between the chassis and the fastener.

[0009] Preferably, the chassis comprises a limiting groove, the vibration damping block is at least partially disposed in the limiting groove, and the fastener is disposed on the vibration damping block.

[0010] Preferably, the bottom of the limiting groove is lower than the chassis body, and the top of the side wall is higher than the chassis body.

[0011] Preferably, the limiting groove is formed by a fixed connection between a sinking groove and a sleeve of the chassis body.

[0012] Preferably, the vibration damping assembly further comprises a foot pad, the foot pad is provided with a through hole for the fastener to pass through; the bottom end of the foot pad abuts against the vibration damping block.

[0013] Preferably, the height of the limiting groove is greater than the height of the vibration damping block, and the foot pad is partially arranged in the limiting groove.

[0014] Preferably, a groove for accommodating the end of the fastener is provided on the upper portion of the vibration damping block.

[0015] Preferably, an annular groove is provided on the outer peripheral wall of the vibration damping block.

[0016] Preferably, one end of the fastener is an integral structure with the vibration damping block.

[0017] According to another aspect of the present application, a compressor is provided, comprising the vibration reduction assembly as described above.

[0018] According to yet another aspect of the present application, an air conditioning system is provided, comprising the vibration reduction assembly as described above or the compressor as described above.

[0019] The present application provides a vibration reduction assembly, including a chassis, a vibration reduction block and a fastener, wherein one end of the fastener is arranged on the chassis via the vibration reduction block; the vibration reduction block can reduce the vibration transmission between the chassis and the fastener. The vibration reduction block is arranged between the fastener and the chassis to ensure that the vibration between the two can be completely attenuated via the vibration reduction block, thereby avoiding the generation of abnormal noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the compressor vibration reduction device according to an embodiment of the present application.

[0021] The reference numerals are:

[0022] 1. Bolts; 11. Nuts; 2. Chassis; 21. Sinking groove; 3. Vibration damping block; 31. Annular groove; 4. Foot pad; 5. Sleeve; 6. Compressor foot. DETAILED DESCRIPTION

[0023] See also Figure 1 As shown, according to an embodiment of the present application, a vibration damping assembly includes a chassis 2, a vibration damping block 3 and a fastener, wherein one end of the fastener is arranged on the chassis 2 through the vibration damping block 3; the vibration damping block 3 can reduce the vibration transmission between the chassis 2 and the fastener.

[0024] In the vibration damping assembly of the present application, by adding a vibration damping block 3 between the fastener and the chassis 2, the vibration damping block 3 can weaken the vibration transmission between the chassis 2 and the fastener, and can even completely attenuate the vibration, thereby avoiding the direct contact between the fastener and the chassis 2 to generate abnormal noise.

[0025] In some embodiments, the chassis 2 includes a limiting groove, the vibration damping block 3 is at least partially disposed in the limiting groove, and the fastener is disposed on the vibration damping block 3 .

[0026] By arranging the limiting groove on the chassis 2 , the arrangement of the vibration-damping block 3 is facilitated, and the lateral movement of the vibration-damping block 3 on the chassis 2 is avoided, thereby enhancing the stability of the vibration-damping block 3 .

[0027] In some embodiments, the bottom of the limiting groove is lower than the main body of the chassis 2, and the top of the side wall is higher than the main body of the chassis 2.

[0028] By setting the limiting groove lower than the structural mode of the chassis 2 body, the center of gravity of the vibration reduction assembly can be lowered, and its stability and vibration reduction effect can be improved.

[0029] Optionally, the limiting groove is formed by a fixed connection between a sinking groove 21 of the chassis 2 body and a sleeve 5; more preferably, the height of the sinking groove 21 is 5-12 mm, and the height of the sleeve 5 is 12-20 mm.

[0030] The above-mentioned size limitation range is mainly considered from the perspective of process. The chassis 2 is usually made of sheet metal, and the sinking groove 21 is generally stamped during processing. Due to the limited influence of sheet metal thickness and sheet metal ductility, the height of the sinking groove 21 and the height of the sleeve 5 are most appropriately selected within the above-mentioned range.

[0031] In some embodiments, the vibration reduction assembly further includes a foot pad 4 , and the foot pad 4 is provided with a through hole for the fastener to pass through; the bottom end of the foot pad 4 abuts against the vibration reduction block 3 .

[0032] A foot pad 4 is sleeved on the outer periphery of the fastener, and the bottom end of the foot pad 4 is abutted against the vibration damping block 3, so that two components that can play a vibration damping role are overlapped and can greatly attenuate vibration transmission in the overlapping direction.

[0033] In some embodiments, the height of the limiting groove is greater than the height of the vibration damping block 3, and the foot pad 4 is partially disposed in the limiting groove.

[0034] The height of the limit groove is set higher than the height of the vibration damping block 3, so that the bottom of the foot pad 4 is set in the limit groove, and the limit groove also limits the lateral movement of the foot pad 4, thereby preventing the lateral movement of the foot pad 4 from squeezing the fasteners passing through the foot pad 4.

[0035] In some embodiments, a groove for accommodating the end of the fastener is provided on the upper portion of the vibration damping block 3 .

[0036] A groove for accommodating the end of the fastener is provided on the upper part of the vibration damping block 3, which can ensure the stability of the fastener on the vibration damping block 3 and prevent it from deflecting under the influence of lateral force; especially under the action of the foot pad 4 provided above the vibration damping block 3, the fastener is further prevented from moving.

[0037] The depth of the groove may be the same as the thickness of the end of the fastener. For example, if the fastener is a bolt 1 , the depth of the groove is consistent with the thickness of the gasket at the bottom end of the bolt 1 , and the diameter is the same as the diameter of the gasket at the bottom end of the bolt 1 .

[0038] In some embodiments, an annular groove is provided on the outer peripheral wall of the vibration damping block 3 .

[0039] The annular groove is a groove arranged in a ring along the circumferential direction on the outer peripheral wall of the vibration damping block 3. It is mainly considered from two aspects: First, in terms of vibration damping, the design of the annular groove 31 is the same as the design of the outer surface groove in the traditional structure of the foot pad 4, which can increase the elasticity in the vertical direction, reduce the rigidity, improve the vibration isolation rate, and reduce the transmission of the vibration of the compressor to the chassis 2. Second, the installation angle. When the vibration damping block 3 is actually produced, the upper and lower surfaces sometimes warp, and they tilt during assembly. The design of the annular groove 31 makes the surface of the material flatter after being compressed, and the pressure distribution is more uniform.

[0040] In some embodiments, one end of the fastener is an integral structure with the vibration damping block 3 .

[0041] The integrated structure is adopted to improve the connection stability between the fastener and the vibration damping block 3, prevent the deviation of the fastener and the vibration damping block 3 caused by axial vibration, and avoid rigid contact between the fastener and the chassis 2.

[0042] According to another embodiment of the present application, a compressor is provided, comprising the vibration reduction assembly as described above.

[0043] like Figure 1The compressor vibration reduction device shown in the figure comprises a chassis 2 with a sinking groove 21, a sleeve 5, a vibration reduction block 3, a bolt 1, a foot pad 4, a compressor foot 6 and a nut 11. The lower end of the sleeve 5 is welded on the sinking groove 21 to form a deeper limit groove structure. The vibration reduction block 3 is made of rubber material and is arranged in the limit groove structure. The upper end of the vibration reduction block 3 is provided with a groove, and the lower end gasket of the bolt 1 is embedded in the groove to form an integrated structure. The foot pad 4 is sleeved on the bolt 1, and the compressor foot 6 is sleeved on the upper part of the bolt 1 and fixed by the nut 11. Among them, the upper end of the vibration reduction block 3 is lower than the upper end of the sleeve 5, so that the lower part of the foot pad 4 is also partially arranged in the limit groove.

[0044] In actual production, a boss is provided on the bottom of the sinking groove 21, and a circular hole corresponding to the boss is provided at the bottom of the vibration damping block 3. The diameter of the circular hole is smaller than the diameter of the bolt head, which can ensure that the vibration is transmitted to the rubber vibration damping block 3 and dispersed for attenuation, and the vibration damping effect is good. In order to ensure the supporting strength of the rubber vibration damping block 3 in the vertical direction, the difference between the circular hole diameter and the maximum inner diameter of the foot pad is ±1-±3mm.

[0045] The circular hole does not penetrate the entire rubber vibration damping block 3. The thickness of the rubber vibration damping block 3 at the circular hole is 4-10mm, mainly considering the following two aspects. First, a circular groove is provided on the top of the vibration damping block 3, and this part is fixedly connected to the gasket at the bottom end of the bolt 1. In order to ensure the connection strength, it is necessary to provide a larger fixing area as much as possible. If the circular hole penetrates the vibration damping block 3, the fixing area will be reduced, affecting the fixing strength; secondly, when the circular hole penetrates the vibration damping block 3, when the compressor is running, the vibration damping block 3 will receive the load and deform in the vertical direction. If the deformation is too large, the gasket at the bottom end of the bolt 1 will collide with the boss on the chassis, the vibration reduction will fail, and noise problems will be caused.

[0046] The above structure can ensure that the vibration of the compressor is completely attenuated by the rubber vibration damping block 3 before being transmitted to the chassis 2, thereby avoiding abnormal noise caused by the vibration of the chassis 2 and the shell, and has a better vibration reduction effect than the single foot pad 4; the sleeve 5 structure is introduced to play a limiting effect on the foot pad 4, thereby solving the problem that the foot pad 4 is pressed against the bolt 1 under the action of lateral force during the operation of the compressor, causing the vibration reduction failure of the foot pad 4.

[0047] In the compressor vibration reduction device of the present application, the chassis 2 is used to install the circular sinking groove 21 of the vibration reduction device, the depth of the sinking groove 21 is 5 to 12 mm, and the diameter of the sinking groove 21 is consistent with the outer size of the vibration reduction block 3. Further, the bottom end of the vibration reduction block 3 is fitted with the bottom end of the sinking groove 21, and can also be fixed by gluing. The top end of the rubber vibration reduction block 3 is 3 to 8 mm lower than the top end of the sleeve 5, which is used to limit the foot pad 4.

[0048] In order to improve the vibration reduction effect of the vibration reduction block 3, a circular groove is arranged on the outer wall of the vibration reduction block 3, and the annular groove 31 can be located in the middle position of the vibration reduction block 3; a circular groove is arranged on the top of the vibration reduction block 3, the depth of the groove is consistent with the thickness of the gasket at the bottom end of the bolt 1, and the diameter of the groove is consistent with the diameter of the gasket at the bottom end of the bolt 1.

[0049] The foot pad 4 is installed on the fixing bolt 1, and the bottom end of the foot pad 4 is fitted with the top end of the vibration damping block 3. The part of the metal sleeve 5 higher than the rubber vibration damping block 3 is fitted with the outer wall of the bottom end of the foot pad 4, which is used to limit the foot pad 4 and solve the problem that the foot pad 4 is pressed against the positioning bolt 1 under the action of lateral force during the operation of the compressor, causing the vibration damping failure of the foot pad 4.

[0050] The compressor foot 6 is located on the top of the vibration reduction part of the foot pad 4 and is connected to the bolt 1 through a nut 11.

[0051] According to yet another embodiment of the present application, an air conditioning system is provided, comprising the vibration reduction assembly as described above or the compressor as described above.

[0052] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0053] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A vibration reduction assembly, characterized in that: It comprises a chassis (2), a vibration-damping block (3) and a fastener, wherein one end of the fastener is arranged on the chassis (2) via the vibration-damping block (3); the vibration-damping block (3) can reduce the vibration transmission between the chassis (2) and the fastener; The chassis (2) comprises a limiting groove, the vibration damping block (3) is at least partially arranged in the limiting groove, and the fastener is arranged on the vibration damping block (3); A boss is provided at the bottom of the limiting groove, and a circular hole corresponding to the boss is provided at the bottom of the vibration damping block (3), wherein the circular hole does not penetrate the entire vibration damping block (3); a groove for accommodating the end of the fastener is provided at the top of the vibration damping block (3).

2. The vibration reduction assembly according to claim 1, characterized in that: The bottom of the limiting groove is lower than the main body of the chassis (2), and the top of the side wall is higher than the main body of the chassis (2).

3. The vibration reduction assembly according to claim 1 or 2, characterized in that: The limiting groove is formed by a fixed connection between a sinking groove (21) of the chassis (2) body and a sleeve (5).

4. The vibration reduction assembly according to claim 3, characterized in that: The vibration reduction assembly also includes a foot pad (4), the foot pad (4) being provided with a through hole for the fastener to pass through; the bottom end of the foot pad (4) abuts against the vibration reduction block (3).

5. The vibration reduction assembly according to claim 4, characterized in that: The height of the limiting groove is greater than the height of the vibration damping block (3), and the foot pad (4) is partially arranged in the limiting groove.

6. The vibration reduction assembly according to claim 1, characterized in that: The outer peripheral wall of the vibration damping block (3) is provided with an annular groove.

7. The vibration reduction assembly according to claim 1, characterized in that: One end of the fastener and the vibration damping block (3) are an integral structure.

8. A compressor, characterized in that: It comprises a vibration reduction assembly as described in any one of claims 1 to 7.

9. An air conditioning system, characterized in that: It comprises the vibration reduction assembly as described in any one of claims 1 to 7 or the compressor as described in claim 8.

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