Variable frequency air conditioner rotor compressor with stress optimization structure
By introducing a shell, barrel and base buffer mechanism into the variable frequency air conditioner rotor compressor, the problems of vibration stress concentration and vibration energy superposition in traditional designs are solved, effective absorption and dispersion of multi-directional vibrations are achieved, system stability is improved and failure rate is reduced.
Patent Information
- Application Number
- CN202510503710.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-10-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the operation of a traditional variable-frequency air-conditioning rotor compressor, the cylinder and the liquid storage cylinder generate multi-directional vibration stresses due to factors such as the reciprocating motion of the piston and the impact of the refrigerant fluid. This causes high-frequency vibration of the cylinder along the axial direction, which can easily cause bolt loosening and pipe rupture. The superimposed transmission of vibration energy causes resonance, affecting system stability and noise.
The shell buffer mechanism, cylinder buffer mechanism and base buffer mechanism are adopted, and the structural design of annular radial grooves, axial grooves and universal joints is used to achieve three-dimensional absorption of radial, axial and circumferential vibration stresses. Components such as sliding columns, telescopic rods and buffer sleeves are used to disperse and consume vibration energy and reduce stress concentration.
Effectively absorb and disperse multi-directional vibration stress, reduce the risk of fatigue cracks at the cylinder connection, reduce vibration transmission, improve system stability and reduce noise, and reduce failure rate.
Smart Images
Figure CN120798792A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application mainly relates to the technical field of air conditioner compressors, and particularly relates to a variable frequency air conditioner rotor compressor with a stress optimization structure. BACKGROUND
[0002] During the operation of the variable frequency air conditioner rotor compressor, the cylinder barrel and the liquid storage barrel will generate multidirectional vibration stress due to the reciprocating movement of the piston, the impact of the refrigerant fluid and other factors. The traditional compressor structure has obvious technical bottlenecks: the existing shell usually only absorbs radial vibration through a single annular groove or a rubber pad, lacks axial stress dispersion design, and thus the high-frequency vibration of the cylinder along the axial direction is easy to cause problems such as bolt loosening and pipeline rupture; the cylinder barrel and the liquid storage barrel are usually rigidly connected, and the vibration energy of the two cylinder bodies is transmitted and superimposed on each other during operation, and the connection part of the cylinder is easy to crack due to fatigue during frequent load change operation under variable frequency conditions; the traditional base is usually rigidly supported, and the compressor vibration is directly transmitted to the mounting surface, which not only intensifies the noise of the whole machine, but also may cause resonance through the structural parts, affecting the stability of the system. SUMMARY
[0003] The present application mainly provides a variable frequency air conditioner rotor compressor with a stress optimization structure to solve the technical problems raised in the background.
[0004] The technical scheme adopted by the present application to solve the above technical problems is as follows:
[0005] The variable frequency air conditioner rotor compressor with a stress optimization structure comprises a cylinder barrel, one side of the cylinder barrel is connected with a liquid storage barrel, a shell buffer mechanism is connected on the cylinder body of the liquid storage barrel and the cylinder barrel, a cylinder body buffer mechanism is connected between the liquid storage barrel and the cylinder barrel, and a base buffer mechanism is connected at the bottom end of the cylinder barrel.
[0006] The shell buffer mechanism comprises a plurality of annular radial grooves arranged on the cylinder body of the cylinder barrel and the liquid storage barrel, the annular radial grooves are arranged in sequence from top to bottom, an axial groove is arranged between adjacent two annular radial grooves, and a sliding column is slidably connected in the groove body of the annular radial groove and the axial groove.
[0007] The cylinder body buffer mechanism comprises a universal joint connected on the cylinder body of the cylinder barrel and the liquid storage barrel, a telescopic rod is connected between the two universal joints, a buffer sleeve is connected on the rod body of the telescopic rod, and an auxiliary buffer assembly is connected on the buffer sleeve.
[0008] Further, the groove body of the axial groove is annular, a plurality of first partition plates are connected in the groove body of the axial groove, the first partition plates are arranged around the axis of the axial groove, and the sliding column is slidably connected with adjacent two first partition plates.
[0009] Further, a plurality of second partition plates are connected in the groove body of the annular radial groove, the plurality of second partition plates are arranged around the axis of the annular radial groove, and the sliding column is in sliding connection with two adjacent second partition plates.
[0010] Further, the sliding column in the groove body of the axial groove is an arc-shaped column body, and the sliding column in the groove body of the annular radial groove is a straight line type column body.
[0011] Further, the structure of the auxiliary buffer assembly is the same as that of the shell buffer mechanism.
[0012] Further, the telescopic rod comprises an inner rod connected with one of the universal joints and an outer rod connected with the other universal joint, and one end of the inner rod is inserted into the rod body of the outer rod.
[0013] Further, the outer rod is a hollow structure, a terminal ring is slidingly connected in the inner cavity of the outer rod, and the ring body of the terminal ring is connected to one end of the inner rod extending into the inner cavity of the rod body of the outer rod.
[0014] Further, one end of the inner rod extending into the inner cavity of the rod body of the outer rod is connected with a spring, and the end of the spring away from the inner rod is in abutment with the inner cavity of the outer rod.
[0015] Further, the buffer sleeve is connected to the outside of the outer rod.
[0016] Further, the base buffer mechanism comprises a first support plate connected to the lower surface of the cylinder barrel, a plurality of buffers connected to the bottom end of the first support plate, and a second buffer plate connected to the bottom end of the plurality of buffers.
[0017] Compared with the prior art, the present application has the following beneficial effects:
[0018] Firstly, the present application realizes the three-dimensional absorption of radial, axial, circumferential and vertical vibration stress through the synergistic effect of the shell buffer mechanism, the cylinder buffer mechanism and the base buffer mechanism, and the stress concentration risk is reduced.
[0019] Secondly, the elastic telescopic rod and the angle adaptation of the universal joint can cope with the load mutation under variable frequency working condition, avoid rigid collision of the cylinder body, and reduce the system operation failure rate.
[0020] The present application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a structural schematic view of the present application;
[0022] Figure 2 is a front view of the present application;
[0023] Figure 3 Structure diagram of the shell buffering mechanism of the present application;
[0024] Figure 4 Structure diagram of the shell buffering mechanism of the present application; Figure 1
[0025] Structure diagram of the shell buffering mechanism of the present application; Figure 5 Structure diagram of the shell buffering mechanism of the present application; Figure 2
[0026] Structure diagram of the shell buffering mechanism of the present application; Figure 6
[0027] Structure diagram of the shell buffering mechanism of the present application; Figure 7
[0028] Structure diagram of the shell buffering mechanism of the present application; Figure 8 Figure: 10, cylinder barrel; 20, liquid storage barrel; 30, shell buffering mechanism; 31, annular radial groove; 311, second partition; 32, axial groove; 321, first partition; 33, sliding column; 40, barrel buffering mechanism; 41, universal joint; 42, telescopic rod; 421, inner rod; 422, outer rod; 423, terminal ring; 424, spring; 43, auxiliary buffering assembly; 44, buffering sleeve; 50, base buffering mechanism; 51, first support plate; 52, buffer; 53, second buffering plate.
[0029] DETAILED DESCRIPTION
[0030] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.
[0031] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, the use of the terms "and / or" includes any and all combinations of one or more of the associated listed items.
[0033] The embodiment of the present application provides a variable frequency air conditioner rotor compressor with stress optimization structure, and a schematic diagram of the variable frequency air conditioner rotor compressor with stress optimization structure is as shown in the figure. Figures 1-4 The variable frequency air conditioner rotor compressor with stress optimization structure comprises a cylinder barrel 10, one side of the cylinder barrel 10 is connected with a liquid storage barrel 20, the liquid storage barrel 20 and the barrel body of the cylinder barrel 10 are both connected with a shell buffer mechanism 30, a barrel body buffer mechanism 40 is connected between the liquid storage barrel 20 and the cylinder barrel 10, and the bottom end of the cylinder barrel 10 is connected with a base buffer mechanism 50.
[0034] The shell buffer mechanism 30 comprises a plurality of annular radial grooves 31 arranged on the barrel bodies of the cylinder barrel 10 and the liquid storage barrel 20, the plurality of annular radial grooves 31 are sequentially arranged from top to bottom, an axial groove 32 is arranged between adjacent two annular radial grooves 31, and a sliding column 33 is slidably connected in the groove bodies of the annular radial grooves 31 and the axial groove 32.
[0035] The barrel body buffer mechanism 40 comprises universal joints 41 connected to the barrel bodies of the cylinder barrel 10 and the liquid storage barrel 20, a telescopic rod 42 is connected between the two universal joints 41, a buffer sleeve 44 is connected to the rod body of the telescopic rod 42, and an auxiliary buffer assembly 43 is connected to the buffer sleeve 44.
[0036] It should be noted that, in the embodiment, when the variable frequency air conditioner rotor compressor with stress optimization structure is running, the cylinder barrel 10 and the liquid storage barrel 20 will vibrate due to the flow of internal refrigerant, the movement of the piston and the like. In the shell buffer mechanism 30, the sliding column 33 in the annular radial groove 31 and the axial groove 32 can slide in the groove bodies. When the barrel body produces radial vibration, the sliding column in the annular radial groove slides in the radial direction, and the vibration energy is consumed through friction and collision with the groove wall; when axial vibration occurs, the sliding column in the axial groove slides in the axial direction, and plays a buffering role. In the barrel body buffer mechanism 40, the universal joint 41 allows a certain angle of relative rotation to occur between the cylinder barrel and the liquid storage barrel, the telescopic rod 42 can be telescoped according to the relative displacement of the two barrel bodies, and the buffer sleeve 44 and the auxiliary buffer assembly 43 further absorb and disperse the vibration stress between the two barrel bodies. The base buffer mechanism 50 transmits the vibration of the cylinder barrel to the buffer through the first support plate 51, the buffer 52 and the second buffer plate 53, the buffer converts the vibration energy into elastic potential energy or heat energy of itself, so as to reduce the vibration transmitted to the base and the surrounding environment.
[0037] Optionally, please refer to the accompanying drawings Figure 3 and 4 The groove body of the axial groove 32 is annular, a plurality of first partition plates 321 are connected in the groove body of the axial groove 32, the plurality of first partition plates 321 are arranged around the axis of the axial groove 32, and the sliding column 33 is slidably connected with adjacent two first partition plates 321.
[0038] In this embodiment, the groove body of the axial groove 32 is annular, and a plurality of first partitions 321 are arranged around the axis of the axial groove. When axial vibration occurs, the sliding column 33 slides between two adjacent first partitions. The first partitions limit the movement trajectory of the sliding column and increase the friction between the sliding column and the groove body, so that the sliding column can more effectively consume the axial vibration energy during sliding. This structural design makes the buffering effect of the axial vibration more stable and efficient, and can more accurately control the transmission of the axial vibration, reduce the influence of the axial vibration on other parts of the compressor, and further improve the operation stability of the compressor.
[0039] Optionally, please refer to the attached Figure 3 and 5 A plurality of second partitions 311 are connected in the groove body of the annular radial groove 31, and the plurality of second partitions 311 are arranged around the axis of the annular radial groove 31. The sliding column 33 is in sliding connection with two adjacent second partitions 311.
[0040] In this embodiment, the plurality of second partitions 311 in the groove body of the annular radial groove 31 are arranged around the axis of the annular radial groove. When radial vibration occurs, the sliding column 33 slides between two adjacent second partitions. The second partitions also limit the movement trajectory of the sliding column, increase the contact area and friction between the sliding column and the groove body, and thus more effectively consume the radial vibration energy. The above structure can better disperse and absorb the radial vibration stress, reduce the influence of the radial vibration on the cylinder, improve the structural strength and stability of the cylinder, and reduce the risk of deformation and damage of the cylinder caused by radial vibration.
[0041] Optionally, please refer to the attached Figure 3 and 5 The sliding column 33 in the groove body of the axial groove 32 is an arc-shaped column, and the sliding column 33 in the groove body of the annular radial groove 31 is a straight-line column.
[0042] In this embodiment, the sliding column in the axial groove 32 is an arc-shaped column, which is suitable for the annular structure of the axial groove. When axial vibration occurs, the arc-shaped column can slide more smoothly in the axial groove and better fit the groove wall, increasing the friction and energy consumption. The sliding column in the annular radial groove 31 is a straight-line column, which is more suitable for straight-line movement in the radial groove and can more effectively cope with radial vibration. The sliding columns of different shapes are optimized for axial and radial vibrations respectively, improving the adaptability and buffering efficiency of the buffering mechanism to vibrations in different directions, and can more comprehensively protect the cylinder from vibration.
[0043] Optionally, please refer to the attached Figure 2 and 6 The structure of the auxiliary buffering assembly 43 is the same as that of the shell buffering mechanism 30.
[0044] In the present embodiment, the auxiliary buffering assembly 43 has the same structure as the shell buffering mechanism 30, which means that it also has similar annular radial grooves, axial grooves and sliding column structures. When the telescopic rod 42 vibrates due to the relative movement of the two cylinders, the auxiliary buffering assembly can consume and disperse the vibration energy through the sliding of the sliding column in the groove, just like the shell buffering mechanism, playing a secondary buffering role. The above structure enhances the buffering capacity of the cylinder buffering mechanism, further reduces the vibration transmission between the two cylinders, improves the stability of the connection between the two cylinders, and reduces the possibility of damage to parts caused by the relative vibration of the two cylinders.
[0045] Optionally, please refer to the attached Figure 1 and 7 The telescopic rod 42 includes an inner rod 421 connected to one of the universal joints 41, and an outer rod 422 connected to the other universal joint 41. One end of the inner rod 421 is inserted into the rod body of the outer rod 422.
[0046] In the present embodiment, the telescopic rod 42 is composed of an inner rod 421 and an outer rod 422. One end of the inner rod is inserted into the rod body of the outer rod. When the relative displacement occurs between the cylinder and the liquid storage cylinder, the inner rod can be telescoped in the outer rod, thereby adapting to the distance change between the two cylinders. This telescopic structure can buffer the relative movement between the two cylinders to a certain extent and reduce the stress caused by the relative displacement.
[0047] Optionally, please refer to the attached Figure 2 and 8 The outer rod 422 is a hollow structure, and the inner cavity of the outer rod 422 is slidingly connected with a terminal ring 423. The ring body of the terminal ring 423 is connected to one end of the inner rod 421 extending into the inner cavity of the rod body of the outer rod 422.
[0048] In the present embodiment, the outer rod 422 is a hollow structure, and the inner cavity of the outer rod 422 is slidingly connected with a terminal ring 423. The ring body of the terminal ring 423 is connected to one end of the inner rod 421 extending into the inner cavity of the rod body of the outer rod 422. The function of the terminal ring is to limit the telescopic range of the inner rod in the outer rod, prevent the inner rod from being excessively extended or retracted, and ensure the normal work of the telescopic rod.
[0049] Optionally, please refer to the attached Figure 2 and 8 One end of the inner rod 421 extending into the inner cavity of the rod body of the outer rod 422 is connected with a spring 424, and the end of the spring 424 away from the inner rod 421 abuts against the inner cavity of the outer rod 422.
[0050] In this embodiment, the inner rod 421 extends into the outer rod 422, and a spring 424 is connected to one end of the inner rod 421. The other end of the spring 424 is in contact with the inner cavity of the outer rod 422. When the inner rod 421 extends or retracts in the outer rod 422, the spring 424 will be compressed or stretched. The elasticity of the spring 424 can absorb and store the energy generated during the extension and retraction of the inner rod 421, thereby playing a buffering and damping role.
[0051] Optionally, please refer to the attached Figure 2 and 7 The buffer sleeve 44 is connected to the outside of the outer rod 422.
[0052] In this embodiment, the buffer sleeve 44 is connected to the outside of the outer rod 422, which can further absorb and disperse the vibration energy transmitted by the outer rod. The buffer sleeve cooperates with the auxiliary buffer assembly 43 to jointly buffer and process the vibration of the telescopic rod.
[0053] Optionally, please refer to the attached Figure 1 and 2 The base buffer mechanism 50 includes a first support plate 51 connected to the lower surface of the cylinder barrel 10, a plurality of buffers 52 connected to the bottom end of the first support plate 51, and a second buffer plate 53 connected to the bottom end of the plurality of buffers 52.
[0054] In this embodiment, the first support plate 51 of the base buffer mechanism 50 is connected to the lower surface of the cylinder barrel 10, and the vibration of the cylinder barrel is transmitted to the plurality of buffers 52. The buffers can be springs, rubber pads, or other elastic components that can convert vibration energy into elastic potential energy or heat energy. The second buffer plate 53 is connected to the bottom end of the plurality of buffers, further dispersing and isolating the vibration, and reducing the transmission of vibration to the base and the surrounding environment.
[0055] The specific operation mode of the present application is as follows:
[0056] When the variable frequency air conditioner rotor compressor starts to operate, the piston in the cylinder barrel 10 reciprocates, pushing the refrigerant to flow between the cylinder barrel and the liquid storage cylinder 20. In this process, the cylinder barrel and the liquid storage cylinder will vibrate due to changes in internal pressure, refrigerant flow impact, and piston movement.
[0057] The shell buffer mechanism 30 buffers and consumes radial and axial vibrations through the sliding columns 33 in the annular radial groove 31 and the axial groove 32. The universal joint 41 in the cylinder buffer mechanism 40 allows a certain relative rotation between the two cylinders, and the telescopic rod 42 extends or retracts according to the relative displacement of the two cylinders. The spring 424 and the buffer sleeve 44 and the auxiliary buffer assembly 43 further absorb and disperse the vibration stress between the two cylinders.
[0058] The base buffering mechanism 50 transmits the vibration of the cylinder barrel to the buffer 52 through the first support plate 51, the buffer converts the vibration energy, and the second buffering plate 53 further isolates and disperses the vibration, reducing the vibration transmission to the base.
[0059] The application is described above by way of example with reference to the accompanying drawings. It is apparent that the specific implementation of the application is not limited to the above-described manner, and as long as the method concept and technical solution of the application are adopted for such non-essential improvements or the concept and technical solution of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.
Claims
1. A variable frequency air-conditioning rotor compressor with a stress-optimized structure, comprising a cylinder barrel (10), characterized in that: One side of the cylinder barrel (10) is connected to a liquid storage barrel (20), the barrel bodies of the liquid storage barrel (20) and the cylinder barrel (10) are both connected to a shell buffer mechanism (30), a barrel body buffer mechanism (40) is connected between the liquid storage barrel (20) and the cylinder barrel (10), and the bottom end of the cylinder barrel (10) is connected to a base buffer mechanism (50); The housing buffer mechanism (30) comprises a plurality of annular radial grooves (31) provided on the cylinder barrel (10) and the liquid storage barrel (20), wherein the plurality of annular radial grooves (31) are arranged in sequence from top to bottom, an axial groove (32) is provided between two adjacent annular radial grooves (31), and a sliding column (33) is slidably connected in the groove bodies of the annular radial grooves (31) and the axial grooves (32); The barrel buffer mechanism (40) comprises a universal joint (41) connected to the barrel of the cylinder barrel (10) and the liquid storage barrel (20); a telescopic rod (42) is connected between the two universal joints (41); a buffer sleeve (44) is connected to the rod body of the telescopic rod (42); and an auxiliary buffer assembly (43) is connected to the buffer sleeve (44).
2. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The groove body of the axial groove (32) is annular, and a plurality of first partitions (321) are connected to the groove body of the axial groove (32). The plurality of first partitions (321) are arranged around the axis of the axial groove (32), and the sliding column (33) is slidably connected to two adjacent first partitions (321).
3. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: A plurality of second partitions (311) are connected to the groove body of the annular radial groove (31), and the plurality of second partitions (311) are arranged around the axis of the annular radial groove (31), and the sliding column (33) is slidably connected to two adjacent second partitions (311).
4. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The sliding column (33) in the groove body of the axial groove (32) is an arc-shaped column, and the sliding column (33) in the groove body of the annular radial groove (31) is a straight column.
5. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The structure of the auxiliary buffer assembly (43) is the same as that of the housing buffer mechanism (30).
6. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The telescopic rod (42) comprises an inner rod (421) connected to one universal joint (41) and an outer rod (422) connected to the other universal joint (41); one end of the inner rod (421) is plugged into the rod body of the outer rod (422).
7. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 6, characterized in that: The outer rod (422) is a hollow structure. The inner cavity of the outer rod (422) is slidably connected to a termination ring (423). The ring body of the termination ring (423) is connected to the inner rod (421) and extends to one end of the inner cavity of the outer rod (422).
8. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 7, characterized in that: One end of the inner rod (421) extending into the inner cavity of the outer rod (422) is connected to a spring (424), and one end of the spring (424) away from the inner rod (421) abuts against the inner cavity of the outer rod (422).
9. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The buffer sleeve (44) is connected to the outside of the outer rod (422).
10. The variable frequency air-conditioning rotor compressor with a stress optimization structure according to claim 1, characterized in that: The base buffer mechanism (50) comprises a first support plate (51) connected to the lower surface of the cylinder barrel (10), a plurality of buffers (52) connected to the bottom end of the first support plate (51), and a second buffer plate (53) connected to the bottom ends of the plurality of buffers (52).