Vibration reduction devices, compressors and air conditioners

Abstract

The present invention discloses a vibration reduction device, a compressor and an air conditioner, wherein the vibration reduction device comprises: a vibration reduction rod, the vibration reduction rod is used to be connected to a vibration source; a first mass block, the first mass block is movably arranged on the vibration reduction rod; an elastic member, the elastic member is arranged on the vibration reduction rod, and the elastic member is used to convert the kinetic energy of the first mass block into elastic potential energy; a damping vibration absorber, the damping vibration absorber is arranged on the vibration reduction rod. The vibration reduction device of the present invention forms a vibration energy absorption structure by arranging the vibration reduction rod, the first mass block and the elastic member, and at the same time adds the damping vibration absorber, which can quickly absorb the vibration energy, reduce the influence of the vibration on other structures, and significantly improve the vibration and noise level of the whole compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a vibration reduction device, a compressor and an air conditioner. Background Art

[0002] The noise of the compressor during operation will greatly affect the user experience. Therefore, how to reduce the noise as much as possible is an urgent problem to be solved. The scroll compressor with silencer holes is generally used in the market. It mainly achieves noise reduction by setting exhaust grooves on the side wall of the bracket. However, the side wall opening causes uneven gas force on the bracket, aggravating the overturning and friction of the scroll disk, resulting in increased vibration of the bracket and the whole machine. At the same time, the friction of the scroll disk causes abnormal performance of the compressor.

[0003] In addition, there is also a method of installing an elastic vibration-damping pad between the outer periphery of the static scroll of the scroll compressor and the shell, which reduces the vibration of the static scroll to the shell by isolating the transmission path. However, this solution does not solve the problem of brackets and internal vibration in the compressor, resulting in the influence of vibration on the compression process of the dynamic and static scrolls and the friction between the scrolls, thereby increasing the vibration and noise level of the entire compressor. Summary of the invention

[0004] The invention discloses a vibration reduction device, a compressor and an air conditioner, which solve the problem that the vibration reduction device has a poor effect and causes large vibration and noise of the compressor.

[0005] According to one aspect of the present invention, a vibration reduction device is disclosed, comprising: a vibration reduction rod, which is used to be connected to a vibration source; a first mass block, which is movably arranged on the vibration reduction rod; an elastic member, which is arranged on the vibration reduction rod, and is used to convert the kinetic energy of the first mass block into elastic potential energy; and a damping vibration absorber, which is arranged on the vibration reduction rod.

[0006] Furthermore, the elastic member is a spring, which is sleeved on the vibration-damping rod, located between the damping shock absorber and the first mass block, with a first end of the spring connected to the damping shock absorber and a second end of the spring connected to the first mass block.

[0007] Furthermore, a buffer gasket is provided, the first mass block is mounted on the buffer gasket, and the buffer gasket is connected to the second end of the spring.

[0008] Furthermore, the vibration damping device further comprises: a sleeve, the sleeve is sleeved on the vibration damping rod, the sleeve is fixedly connected to the vibration damping rod, and the vibration damping rod is connected and fixed to the vibration source via the sleeve.

[0009] Furthermore, the damping vibration absorber is detachably connected to the vibration-absorbing rod.

[0010] Furthermore, the damping shock absorber includes: a shell, the shell is connected to the shock absorbing rod, and the shell has a accommodating chamber for accommodating damping fluid; a second mass block, the second mass block is arranged in the accommodating chamber, and the second mass block is at least partially located in the damping fluid.

[0011] Furthermore, the damping vibration absorber further comprises: an elastic washer, the elastic washer is arranged on the inner wall of the accommodating cavity, the second mass block is connected to the elastic washer, and the second mass block is connected to the inner wall of the accommodating cavity through the elastic washer.

[0012] Furthermore, there are two elastic washers, which are arranged opposite to each other, and an installation space is formed between the two elastic washers, and the second mass block is located in the installation space.

[0013] According to a second aspect of the present invention, a compressor is disclosed, comprising: a bracket, the bracket being used to mount a movable scroll, the bracket being provided with a mounting hole; and a vibration reduction device, the vibration reduction device being disposed in the mounting hole.

[0014] Furthermore, the vibration damping device includes: a vibration damping rod, which is connected to the bracket; a first mass block, which is movably arranged on the vibration damping rod; and an elastic member, which is arranged on the vibration damping rod and is used to convert the kinetic energy of the first mass block into elastic potential energy.

[0015] Furthermore, the elastic member is a spring, the spring is sleeved on the vibration damping rod, the first end of the spring is fixed to the vibration damping rod, and the second end of the spring is connected to the first mass block.

[0016] Furthermore, a buffer gasket is provided, the first mass block is mounted on the buffer gasket, and the buffer gasket is connected to the second end of the spring.

[0017] Furthermore, the vibration damping device further comprises: a sleeve, the sleeve is sleeved on the first end of the vibration damping rod, the sleeve is fixedly connected to the vibration damping rod, and the sleeve is connected to the bracket.

[0018] Furthermore, the vibration reduction device further comprises: a damping vibration absorber, wherein the damping vibration absorber is arranged at the second end of the vibration reduction rod.

[0019] Furthermore, the damping vibration absorber is detachably connected to the vibration-absorbing rod.

[0020] Furthermore, the damping shock absorber includes: a shell, the shell is connected to the shock absorber rod, and the shell has a accommodating chamber for accommodating damping fluid; a second mass block, the second mass block is arranged in the accommodating chamber, the second mass block is elastically connected to the inner wall of the accommodating chamber, and the second mass block is at least partially located in the damping fluid.

[0021] Furthermore, the damping vibration absorber further comprises: an elastic washer, the elastic washer is arranged on the inner wall of the accommodating cavity, and the second mass block is connected to the inner wall of the accommodating cavity via the elastic washer.

[0022] Furthermore, there are two elastic washers, which are arranged opposite to each other, and an installation space is formed between the two elastic washers, and the second mass block is located in the installation space.

[0023] According to a third aspect of the present invention, an air conditioner is disclosed, comprising the above-mentioned vibration reduction device.

[0024] The vibration reduction device of the present invention forms a vibration energy absorption structure by arranging a vibration reduction rod, a first mass block and an elastic member, and at the same time adds a damping vibration absorber, which can quickly absorb vibration energy, reduce the impact of vibration on other structures, and significantly improve the vibration and noise level of the entire compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a vibration reduction device according to an embodiment of the present invention;

[0026] Figure 2 is a structural schematic diagram of a compressor according to an embodiment of the present invention;

[0027] Legend: 11. vibration damping rod; 12. first mass block; 13. elastic member; 14. buffer gasket; 15. sleeve; 151. fixing cap; 20. damping shock absorber; 21. shell; 211. accommodating chamber; 22. second mass block; 23. elastic washer; 24. connecting nut; 100. bracket; 110. mounting hole; 200. movable scroll. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments, but is not limited to the contents of the description.

[0029] like Figure 1As shown, the present invention discloses a vibration reduction device, which is installed on a compressor, and includes a vibration reduction rod 11, a first mass block 12, an elastic member 13 and a damping vibration absorber 20. The vibration reduction rod 11 is used to be connected to a vibration source; the first mass block 12 is movably arranged on the vibration reduction rod 11; the elastic member 13 is arranged on the vibration reduction rod 11, and the elastic member 13 is used to convert the kinetic energy of the first mass block 12 into elastic potential energy; the damping vibration absorber 20 is arranged on the vibration reduction rod 11.

[0030] The vibration reduction device of the present invention forms a vibration energy absorption structure by arranging a vibration reduction rod, a first mass block and an elastic member, and at the same time adds a damping vibration absorber, which can quickly absorb vibration energy, reduce the impact of vibration on other structures, and significantly improve the vibration and noise level of the entire compressor.

[0031] The first end of the vibration damping rod can be used to connect with the vibration source, the second end of the vibration damping rod is used to install the damping vibration absorber 20, the elastic member 13 can be connected with the first mass block, or it can be not connected with the first mass block, as long as an external force can be applied to the elastic member during the movement of the first mass block, the vibration energy of the first mass block can be converted into elastic potential energy. The elastic member itself can be fixedly connected with the vibration damping rod, or it can be fixedly connected with the damping vibration absorber.

[0032] Preferably, the elastic member 13 is a spring, which is sleeved on the vibration damping rod 11. The spring is located between the damping vibration absorber 20 and the first mass block 12. The first end of the spring is connected to the damping vibration absorber 20, and the second end of the spring is connected to the first mass block 12. By connecting the damping vibration absorber and the first mass block through the spring, a mass-spring vibration system is formed between the three. The vibration damping rod transmits part of the vibration to the first mass block, and the spring absorbs part of the vibration energy of the first mass block and converts it into elastic potential energy, which plays a role of mass tuning and vibration reduction, thereby greatly improving the vibration reduction effect.

[0033] Furthermore, it also includes a buffer pad 14, on which the first mass block 12 is mounted, and the buffer pad 14 is connected to the second end of the spring. With this structure, the buffer pad can protect the first mass block, so that the force on the first mass block is more uniform, and it can also prevent the surface of the first mass block from being worn during the long-term action between the spring and the first mass block, so that the mass of the first mass block changes and affects the vibration reduction effect.

[0034] Furthermore, the vibration damping device also includes a sleeve 15, which is sleeved on the first end of the vibration damping rod 11, and a fixing cap 151 is provided at one end of the sleeve 15, and the fixing cap 151 is provided with an internal thread. The surface of the vibration damping rod is provided with an external thread matching the fixing cap 151, and the two are fixedly connected by threads, so that the sleeve is fixed to the vibration damping rod, and an external thread is provided on the outer surface of the vibration damping rod, and the external thread is connected to the vibration source thread. The vibration damping rod 11 is connected and fixed to the vibration source through the sleeve 15. By providing the sleeve, the vibration damping rod can be protected by the sleeve to avoid wear of the vibration damping rod.

[0035] like Figure 1 In the illustrated embodiment, the damping vibration absorber 20 is detachably connected to the vibration damping rod 11, a connecting nut 24 is provided on the damping vibration absorber, a thread is provided on the second end of the vibration damping rod 11, and the vibration damping rod is threadedly connected to the connecting nut. During maintenance, the damping vibration absorber can be separated from the vibration damping rod by rotation, which is convenient for maintenance and replacement.

[0036] Furthermore, the damping shock absorber 20 includes a shell 21 and a second mass block 22; a connecting nut 24 is provided on the shell 21, and the shell and the connecting nut can be welded or threadedly connected. The shell 21 is connected to the shock absorbing rod 11 through the connecting nut, and the shell 21 has a accommodating chamber 211 for accommodating the damping fluid; the second mass block 22 is arranged in the accommodating chamber 211, and the second mass block 22 can be freely placed in the accommodating chamber, and plays a vibration reduction role by communicating with the damping fluid.

[0037] In order to improve the vibration reduction effect, the second mass block 22 is elastically connected to the inner wall of the accommodating cavity 211, and the second mass block 22 is at least partially located in the damping fluid. When vibrated, the shell transfers the vibration energy to the second mass block, and the second mass block pushes the damping fluid to move when vibrating, further absorbing and dissipating the vibration energy, thereby improving the vibration reduction effect.

[0038] Furthermore, the damping vibration absorber 20 further includes an elastic washer 23, which is arranged on the inner wall of the accommodating cavity 211, and the second mass block 22 is connected to the elastic washer 23, and the second mass block 22 is connected to the inner wall of the accommodating cavity 211 through the elastic washer 23. By arranging the elastic washer, part of the vibration energy can be absorbed by the elastic washer, and at the same time, the second mass block is driven to generate displacement. During the displacement process, the second mass block pushes the damping fluid to move, further absorbs and dissipates the vibration energy, thereby improving the vibration reduction effect.

[0039] Preferably, there are two elastic washers 23, which are arranged opposite to each other, and an installation space is formed between the two elastic washers 23, and the second mass block 22 is located in the installation space. The installation mode of the elastic washers is perpendicular to the axis of the vibration damping rod, and the mass block is arranged between the two elastic washers, so that the vibration can be better transmitted to the second mass block, so that more vibration energy is transmitted to the damping fluid, thereby improving the vibration reduction effect.

[0040] Furthermore, in order to improve the stability of the elastic gasket, a mounting groove may be provided on the inner wall of the housing 21, and the elastic gasket is disposed in the mounting groove.

[0041] like Figure 2 As shown, according to the second embodiment of the present invention, a compressor is also disclosed, including a compressor housing, a bracket 100, a vibration reduction device, a movable scroll and a fixed scroll, the bracket 100 is installed in the compressor housing, the movable scroll 200 is installed on the bracket 100, the movable scroll 200 performs circular motion under the drive of the compressor main shaft, and meshes with the fixed scroll during the motion, the bracket 100 is provided with a mounting hole 110; the vibration reduction device is arranged in the mounting hole 110. The compressor of the present invention can quickly absorb the vibration energy of the bracket, reduce the vibration of the bracket, reduce the influence of the vibration on the compression process of the movable and fixed disks and the friction between the scrolls, and significantly improve the vibration and noise level of the whole compressor by opening a mounting hole on the bracket and arranging the vibration reduction device in the mounting hole.

[0042] Furthermore, the vibration reduction device includes a vibration reduction rod 11, a first mass block 12 and an elastic member 13, wherein the vibration reduction rod 11 is connected to the bracket 100; the first mass block 12 is movably arranged on the vibration reduction rod 11; and the elastic member 13 is arranged on the vibration reduction rod 11, and the elastic member 13 is used to convert the kinetic energy of the first mass block 12 into elastic potential energy. By arranging the vibration reduction rod 11, the first mass block 12 and the elastic member 13, the three form a vibration energy absorption structure, which can quickly absorb the vibration energy of the bracket, reduce the vibration of the bracket, reduce the influence of the vibration on the compression process of its dynamic and static disks and the friction between the scroll disks, and significantly improve the vibration and noise level of the compressor.

[0043] Preferably, the elastic member 13 is a spring, which is sleeved on the vibration damping rod 11, the first end of the spring is fixed to the vibration damping rod 11, and the second end of the spring is connected to the first mass block 12. The vibration damping rod and the first mass block are connected by the spring, so that a mass-spring vibration system is formed between the three, and the spring absorbs part of the vibration energy of the first mass block and converts it into elastic potential energy, which plays a role of mass tuning vibration reduction, thereby greatly improving the vibration reduction effect.

[0044] Furthermore, it also includes a buffer pad 14, on which the first mass block 12 is mounted, and the buffer pad 14 is connected to the second end of the spring. With this structure, the buffer pad can protect the first mass block, so that the force on the first mass block is more uniform, and it can also prevent the surface of the first mass block from being worn during the long-term action between the spring and the first mass block, so that the mass of the first mass block changes and affects the vibration reduction effect.

[0045] Furthermore, the vibration damping device also includes a sleeve 15, one end of which is provided with a fixing cap 151, the fixing cap 151 is provided with an internal thread, and the surface of the vibration damping rod is provided with an external thread matching the fixing cap 151, and the two are fixedly connected by threads, so that the sleeve and the vibration damping rod are fixed, and an external thread is provided on the outer surface of the vibration damping rod, and the external thread is threadedly connected to the mounting hole on the bracket 100, and the vibration damping rod 11 is connected and fixed to the inner wall of the mounting hole through the sleeve 15. By providing the sleeve, the vibration damping rod can be protected by the sleeve to avoid wear of the vibration damping rod.

[0046] It should be noted that the first end of the vibration damping rod 11 is connected to the inner wall of the mounting hole through the sleeve 15, while the second end of the vibration damping rod 11 is a free end, and the other parts do not contact the inner wall of the mounting hole. This ensures that the screw can be displaced in multiple degrees of freedom, thereby improving the vibration damping effect.

[0047] Furthermore, the vibration reduction device also includes a damping vibration absorber 20, which is arranged at the second end of the vibration reduction rod 11. The compressor of the present invention forms a vibration energy absorption structure by arranging the vibration reduction rod, the first mass block and the elastic member, and at the same time adding the damping vibration absorber, which can quickly absorb the vibration energy, reduce the vibration of the bracket, reduce the influence of the vibration on the compression process of the moving and static disks and the friction between the scroll disks, and significantly improve the vibration and noise level of the compressor.

[0048] like Figure 1 In the illustrated embodiment, the damping vibration absorber 20 is detachably connected to the vibration damping rod 11, a connecting nut 24 is provided on the damping vibration absorber, a thread is provided on the second end of the vibration damping rod 11, and the vibration damping rod is threadedly connected to the connecting nut. During maintenance, the damping vibration absorber can be separated from the vibration damping rod by rotation, which is convenient for maintenance and replacement.

[0049] Furthermore, the damping shock absorber 20 includes a shell 21 and a second mass block 22; a connecting nut 24 is provided on the shell 21, and the shell and the connecting nut can be welded or threadedly connected. The shell 21 is connected to the shock absorbing rod 11 through the connecting nut, and the shell 21 has a accommodating chamber 211 for accommodating the damping fluid; the second mass block 22 is arranged in the accommodating chamber 211, and the second mass block 22 can be freely placed in the accommodating chamber, and plays a vibration reduction role by communicating with the damping fluid.

[0050] In order to improve the vibration reduction effect, the second mass block 22 is elastically connected to the inner wall of the accommodating cavity 211, and the second mass block 22 is at least partially located in the damping fluid. When vibrated, the shell transfers the vibration energy to the second mass block, and the second mass block pushes the damping fluid to move when vibrating, further absorbing and dissipating the vibration energy, thereby improving the vibration reduction effect.

[0051] Furthermore, the damping vibration absorber 20 further includes an elastic washer 23, which is arranged on the inner wall of the accommodating cavity 211, and the second mass block 22 is connected to the elastic washer 23, and the second mass block 22 is connected to the inner wall of the accommodating cavity 211 through the elastic washer 23. By arranging the elastic washer, part of the vibration energy can be absorbed by the elastic washer, and at the same time, the second mass block is driven to generate displacement. During the displacement process, the second mass block pushes the damping fluid to move, further absorbs and dissipates the vibration energy, thereby improving the vibration reduction effect.

[0052] Preferably, there are two elastic washers 23, which are arranged opposite to each other, and an installation space is formed between the two elastic washers 23, and the second mass block 22 is located in the installation space. The installation mode of the elastic washers is perpendicular to the axis of the vibration damping rod, and the mass block is arranged between the two elastic washers, so that the vibration can be better transmitted to the second mass block, so that more vibration energy is transmitted to the damping fluid, thereby improving the vibration reduction effect.

[0053] Furthermore, in order to improve the stability of the elastic gasket, a mounting groove may be provided on the inner wall of the housing 21, and the elastic gasket is disposed in the mounting groove.

[0054] According to a third embodiment of the present invention, an air conditioner is also disclosed, comprising the above-mentioned vibration reduction device.

[0055] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A vibration reduction device, characterized in that: Applicable to a scroll compressor, the scroll compressor comprising a bracket (100), the bracket (100) being used to mount a movable scroll, the bracket (100) being provided with a mounting hole (110), the vibration reduction device being arranged in the mounting hole (110); the vibration reduction device comprising: A vibration damping rod (11), the vibration damping rod (11) being used to be connected to a vibration source; a first mass block (12), the first mass block (12) being movably arranged on the vibration damping rod (11); an elastic member (13), the elastic member (13) being arranged on the vibration-damping rod (11), the elastic member (13) being used to convert the kinetic energy of the first mass block (12) into elastic potential energy; A damping vibration absorber (20), wherein the damping vibration absorber (20) is arranged on the vibration-absorbing rod (11); The damping vibration absorber (20) comprises: A housing (21), the housing (21) being connected to the vibration damping rod (11), the housing (21) having a receiving chamber (211) for receiving a damping fluid; a second mass block (22), the second mass block (22) being freely arranged in the accommodating cavity (211), and the second mass block (22) being at least partially located in the damping fluid; The elastic member (13) is a spring, the first end of the spring is connected to the damping vibration absorber (20), and the second end of the spring is connected to the first mass block (12).

2. The vibration reduction device according to claim 1, characterized in that: The spring is sleeved on the vibration-damping rod (11), the spring is located between the damping vibration absorber (20) and the first mass block (12), the first end of the spring is connected to the damping vibration absorber (20), and the second end of the spring is connected to the first mass block (12).

3. The vibration reduction device according to claim 2, characterized in that: Also includes: A buffer gasket (14), the first mass block (12) being mounted on the buffer gasket (14), and the buffer gasket (14) being connected to the second end of the spring.

4. The vibration reduction device according to claim 1, characterized in that: The vibration reduction device further comprises: A sleeve (15), the sleeve (15) being sleeved on the vibration damping rod (11), the sleeve (15) being fixedly connected to the vibration damping rod (11), and the vibration damping rod (11) being connected and fixedly connected to the vibration source via the sleeve (15).

5. The vibration reduction device according to claim 1, characterized in that: The damping vibration absorber (20) is detachably connected to the vibration damping rod (11).

6. The vibration reduction device according to claim 1, characterized in that: The damping vibration absorber (20) further comprises: An elastic washer (23), the elastic washer (23) being arranged on the inner wall of the accommodating cavity (211), the second mass block (22) being connected to the elastic washer (23), and the second mass block (22) being connected to the inner wall of the accommodating cavity (211) via the elastic washer (23).

7. The vibration reduction device according to claim 6, characterized in that: There are two elastic washers (23), the two elastic washers (23) are arranged opposite to each other, an installation space is formed between the two elastic washers (23), and the second mass block (22) is located in the installation space.

8. A compressor, characterized in that: The invention comprises the vibration reduction device according to any one of claims 1 to 7.

9. The compressor according to claim 8, characterized in that The vibration reduction device comprises: A vibration damping rod (11), the vibration damping rod (11) being connected to the bracket (100); a first mass block (12), the first mass block (12) being movably arranged on the vibration damping rod (11); An elastic member (13), wherein the elastic member (13) is arranged on the vibration-damping rod (11), and the elastic member (13) is used to convert the kinetic energy of the first mass block (12) into elastic potential energy.

10. The compressor according to claim 9, characterized in that The elastic member (13) is a spring, the spring is sleeved on the vibration damping rod (11), the first end of the spring is fixed to the vibration damping rod (11), and the second end of the spring is connected to the first mass block (12).

11. The compressor according to claim 10, characterized in that A buffer gasket (14), the first mass block (12) being mounted on the buffer gasket (14), and the buffer gasket (14) being connected to the second end of the spring.

12. The compressor according to claim 9, characterized in that The vibration reduction device further comprises: A sleeve (15), the sleeve (15) being sleeved on the first end of the vibration damping rod (11), the sleeve (15) being fixedly connected to the vibration damping rod (11), and the sleeve (15) being connected to the bracket (100).

13. The compressor according to claim 9, characterized in that The vibration reduction device further comprises: A damping vibration absorber (20), wherein the damping vibration absorber (20) is arranged at the second end of the vibration-absorbing rod (11).

14. The compressor according to claim 13, characterized in that The damping vibration absorber (20) is detachably connected to the vibration damping rod (11).

15. The compressor according to claim 13, characterized in that The damping vibration absorber (20) comprises: A housing (21), the housing (21) being connected to the vibration damping rod (11), the housing (21) having a receiving chamber (211) for receiving a damping fluid; A second mass block (22), the second mass block (22) being arranged in the accommodating cavity (211), the second mass block (22) being elastically connected to an inner wall of the accommodating cavity (211), and the second mass block (22) being at least partially located in the damping fluid.

16. The compressor according to claim 15, characterized in that The damping vibration absorber (20) further comprises: An elastic washer (23), wherein the elastic washer (23) is arranged on the inner wall of the accommodating cavity (211), and the second mass block (22) is connected to the inner wall of the accommodating cavity (211) via the elastic washer (23).

17. The compressor according to claim 16, characterized in that There are two elastic washers (23), the two elastic washers (23) are arranged opposite to each other, an installation space is formed between the two elastic washers (23), and the second mass block (22) is located in the installation space.

18. An air conditioner, characterized in that: The invention comprises the vibration reduction device according to any one of claims 1 to 7.

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