Damping structure in a rotary compressor
By designing a vibration-damping structure in the rotary compressor, the problems of difficult assembly between the distributor support and the cylinder and poor vibration damping effect were solved, thereby reducing vibration and noise, improving assembly efficiency and saving materials.
Patent Information
- Application Number
- CN202521990915.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
The existing design of vibration damping pads between the distributor support and the cylinder in rotary compressors has problems such as assembly difficulties, material waste, and poor vibration damping effect.
A vibration damping structure is designed, in which the distributor is fixedly installed on one side of the compressor body and connected by the distributor bracket and pressure plate. The vibration damping pad surrounds the circumference of the distributor cylinder. The thickness and width ratio of the vibration damping pad are reasonably controlled to avoid direct contact.
It achieves reduced vibration response and noise, improved assembly efficiency, material savings, reduced manufacturing costs, and reduced vibration transmission and noise radiation.
Smart Images

Figure CN224679979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rotary compressor structure, and in particular to a vibration reduction structure in a rotary compressor. Background Technology
[0002] Rotary compressors are widely used in refrigeration, air conditioning and other fields. A rotary compressor typically includes a housing, motor, pump assembly, upper cover, lower cover, distributor assembly, distributor bracket, distributor pressure plate and other structures. The distributor bracket is horizontally mounted on the outer circumference of one side of the compressor housing, and the distributor pressure plate surrounds the outer circumference of the distributor assembly cylinder, with both ends fixed to the distributor bracket.
[0003] Vibration damping pads are typically placed between the separator cylinder and the separator plate. Generally, the wider the separator support, the wider the vibration damping pad. However, excessively wide and thick vibration damping pads can lead to assembly difficulties and material waste. Conversely, if the vibration damping pad is too thin and too narrow, it can result in direct rigid contact between the separator cylinder and the separator plate, or between the separator cylinder and the separator support, rendering the pad ineffective in reducing vibration and noise. Utility Model Content
[0004] The purpose of this invention is to provide a vibration damping structure in a rotary compressor to solve the vibration problem between the distributor support and the distributor cylinder.
[0005] To solve the above-mentioned technical problems, this utility model provides a vibration damping structure in a rotary compressor. A distributor is fixedly installed on one side of the compressor body. A distributor bracket is provided on one side of the compressor body, and the distributor is installed on the side of the compressor body by a distributor pressure plate. Vibration damping pads are provided in the contact area between the distributor, the distributor bracket, and the distributor pressure plate, and the vibration damping pads surround the circumference of the distributor cylinder.
[0006] Preferably, the distributor bracket is a "W"-shaped bracket, with the middle part fixed to the side wall of the compressor body by welding, and both ends extending outward to connect with the distributor pressure plate.
[0007] Preferably, the dispenser pressure plate surrounds the circumference of the dispenser, and its two ends are respectively connected to the two ends of the dispenser support.
[0008] Preferably, the dispenser bracket has a slot at one end and a threaded hole at the other end. One end of the dispenser pressure plate is engaged with the slot, and the other end is detachably connected to the threaded hole by a bolt.
[0009] Preferably, the thickness t of the vibration damping pad is greater than or equal to 1.2 mm.
[0010] Preferably, the width of the dispenser support is H, the width of the vibration damping pad is h, and h / H = 0.22 to 0.71.
[0011] Preferably, the vibration damping pad is strip-shaped and surrounds the circumference of the separator's cylinder.
[0012] Preferably, the vibration damping pad is annular and is fitted around the circumference of the separator cylinder.
[0013] Compared with the prior art, the beneficial effects of this utility model are: The vibration damping structure of this invention reduces vibration response and noise. By rationally designing the dimensions of the damping pad, assembly becomes easier, allowing for easier placement in the required position and improving assembly efficiency. This also saves materials and reduces manufacturing costs. With a design thickness t greater than or equal to 1.2 mm and the ratio of the damping pad width h to the distributor bracket width H controlled within the range of 0.22 to 0.71, direct contact between the distributor cylinder and the distributor pressure plate, and between the distributor cylinder and the distributor bracket, is avoided. Simultaneously, the contact area between the distributor cylinder and the damping pad, and between the distributor bracket and the damping pad, is reduced, thereby decreasing the vibration transmission area from the compressor housing to the distributor cylinder and reducing the radiated noise from the distributor cylinder. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a rotor compressor using the vibration reduction structure provided by this utility model; Figure 2 This is a front view of a rotor compressor using the vibration reduction structure provided by this utility model; Figure 3 This is a top view of a rotor compressor using the vibration reduction structure provided by this utility model; Figure 4 This is a schematic diagram of the structure of the strip-shaped vibration damping pad provided by this utility model; Figure 5 This is a schematic diagram of the structure of the annular vibration damping pad provided by this utility model.
[0015] In the diagram: 1. Vibration damping pad; 10. Dispenser; 20. Compressor body; 30. Dispenser bracket; 40. Dispenser pressure plate. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0019] Please see Figure 1-3 This utility model provides a vibration damping structure in a rotary compressor. A distributor 10 is fixedly installed on one side of the compressor body 20. A distributor bracket 30 is provided on one side of the compressor body 20, and the distributor 10 is installed on one side of the compressor body 20 by a distributor pressure plate 40. A vibration damping pad 1 is provided in the contact area between the distributor 10, the distributor bracket 30, and the distributor pressure plate 40, and the vibration damping pad 1 surrounds the circumference of the distributor 10 cylinder.
[0020] In this embodiment, the distributor bracket 30 is a "W"-shaped bracket, with its middle part fixed to the side wall of the compressor body 20 by welding, and its two ends extending outward to connect with the distributor pressure plate 40. The distributor pressure plate 40 surrounds the circumference of the distributor 10, and its two ends are respectively connected to the two ends of the distributor bracket 30.
[0021] Furthermore, the dispenser bracket 30 has a slot at one end and a threaded hole at the other end. One end of the dispenser pressure plate 40 is engaged with the slot, and the other end is detachably connected to the threaded hole by a bolt.
[0022] Furthermore, the thickness t of the vibration damping pad 1 is greater than or equal to 1.2 mm; the width of the liquid separator bracket 30 is H, the width of the vibration damping pad 1 is h, and h / H = 0.22 to 0.71.
[0023] In some embodiments, such as Figure 4As shown, the vibration damping pad 1 is strip-shaped and surrounds the circumference of the cylinder of the distributor 10.
[0024] In some embodiments, such as Figure 5 As shown, the vibration damping pad 1 is annular and is fitted around the circumference of the cylinder of the distributor 10.
[0025] The vibration damping structure of this invention reduces vibration response and noise. By rationally designing the dimensions of the damping pad, assembly becomes easier, allowing for easier placement in the required position and improving assembly efficiency. This also saves materials and reduces manufacturing costs. With a design thickness t greater than or equal to 1.2 mm and the ratio of the damping pad width h to the distributor bracket width H controlled within the range of 0.22 to 0.71, direct contact between the distributor cylinder and the distributor pressure plate, and between the distributor cylinder and the distributor bracket, is avoided. Simultaneously, the contact area between the distributor cylinder and the damping pad, and between the distributor bracket and the damping pad, is reduced, thereby decreasing the vibration transmission area from the compressor housing to the distributor cylinder and reducing the radiated noise from the distributor cylinder.
[0026] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A vibration damping structure in a rotary compressor, wherein a distributor (10) is fixedly installed on one side of the compressor body (20), characterized in that, A distributor bracket (30) is provided on one side of the compressor body (20), and the distributor (10) is installed on one side of the compressor body (20) by means of a distributor pressure plate (40); The contact area between the distributor (10), the distributor support (30), and the distributor pressure plate (40) is provided with a vibration damping pad (1), and the vibration damping pad (1) surrounds the circumference of the distributor (10) cylinder. The thickness t of the damping pad (1) is greater than or equal to 1.2 mm; the width of the separator bracket (30) is H, the width of the damping pad (1) is h, and h / H = 0.22 to 0.
71.
2. The vibration damping structure in a rotary compressor as described in claim 1, characterized in that, The distributor bracket (30) is a "W" shaped bracket, with its middle part fixed to the side wall of the compressor body (20) by welding, and its two ends extending outward to connect with the distributor pressure plate (40).
3. The vibration damping structure in a rotary compressor as described in claim 2, characterized in that, The separator pressure plate (40) surrounds the circumference of the separator (10), and its two ends are respectively connected to the two ends of the separator bracket (30).
4. The vibration damping structure in a rotary compressor as described in claim 3, characterized in that, The dispenser bracket (30) has a slot at one end and a threaded hole at the other end. One end of the dispenser pressure plate (40) is engaged with the slot, and the other end is detachably connected to the threaded hole by a bolt.
5. The vibration damping structure in a rotary compressor as described in claim 1, characterized in that, The vibration damping pad (1) is strip-shaped and surrounds the circumference of the cylinder of the distributor (10).
6. The vibration damping structure in a rotary compressor as described in claim 1, characterized in that, The vibration damping pad (1) is annular and is fitted around the circumference of the cylinder of the liquid dispenser (10).