Noise reduction structure and refrigeration compression device thereof
By installing a noise reduction structure of damper and vibration damper on the reservoir, the problem of high noise during operation of the reservoir is solved, and effective vibration absorption and noise reduction are achieved.
Patent Information
- Application Number
- CN202421409032.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The reservoir is noisy when running, mainly due to the resonance problem caused by vibration transmission.
A noise reduction structure is designed, including a damper and a vibration damper, one end of the damper is connected to the reservoir, and the vibration damper is connected to the end of the damper away from the reservoir. When the reservoir vibrates, the damper generates a damping force opposite to the direction of vibration, driving the vibration damper to rotate to offset the vibration of the reservoir.
The vibration of the liquid reservoir is absorbed through damping and vibration-absorbing method. The eccentric rotation of the vibration damping member consumes vibration energy, effectively reducing noise and improving the silent performance of the system.
Smart Images
Figure CN222936931U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of air conditioners, and particularly relates to a noise reduction structure and a refrigeration compression device thereof. Background Art
[0002] Rotary compressors are usually equipped with a liquid receiver for gas-liquid separation before the refrigerant enters the compressor. During the operation of the liquid receiver, the impact of the two-phase medium generates vibration, and at the same time, the vibration generated during the operation of the compressor is also transmitted to the liquid receiver, thereby causing resonance of the pipeline structure and component structure connected to the liquid receiver, resulting in relatively high noise. Summary of the Utility Model
[0003] The utility model provides a noise reduction structure and a refrigeration compression device thereof to solve the technical problem of relatively high noise during the operation of the liquid receiver.
[0004] To achieve the above object, a noise reduction structure proposed in this application includes a damper and a vibration damping member. One end of the damper is connected to the liquid receiver, and the vibration damping member is eccentrically rotatably connected to the end of the damper away from the liquid receiver. When the liquid receiver vibrates, the damper generates a damping force opposite to the vibration direction of the liquid receiver, and the damping force of the damper acts on the liquid receiver and drives the vibration damping member to rotate eccentrically to offset the vibration of the liquid receiver.
[0005] Optionally, in one embodiment, the damper includes a damping member and a base. The upper end and the lower end of the damping member are respectively fixedly connected to the liquid receiver and the base, and the vibration damping member is rotatably connected to the base.
[0006] Optionally, in one embodiment, the upper end of the damping member is fixedly connected to the lower end of the liquid receiver, the base is provided with an avoidance channel, and the liquid receiver is provided with an infusion pipe for connecting to the compressor, and the infusion pipe is arranged in the avoidance channel.
[0007] Optionally, in one embodiment, the base includes a counterweight portion, and a cavity is provided inside the counterweight portion, and the vibration damping member is arranged in the cavity.
[0008] Optionally, in one embodiment, the base further includes a buffer portion, and the buffer portion wraps the counterweight portion.
[0009] Optionally, in one embodiment, the damping member includes a spring, and the two ends of the spring are respectively connected to the liquid receiver and the base.
[0010] Optionally, in one embodiment, a plurality of the vibration damping members are arranged at equal intervals along the circumference of the damper.
[0011] Optionally, in one embodiment, the rotation axis of the vibration damping member is inclined to the damping force direction of the damper.
[0012] Optionally, in one embodiment, the shock absorber includes an eccentric wheel rotatably connected to the damper, and the rotation axis of the eccentric wheel is offset from the central axis of the eccentric wheel.
[0013] A noise reduction structure provided by the present application, by arranging a damper with a shock absorber on the liquid storage container, when the liquid storage container vibrates, the damper generates a damping force opposite to the vibration direction of the liquid storage container and acting on the liquid storage container, absorbs part of the vibration through the damping shock absorption method, and at the same time drives the shock absorber to rotate. The rotation of the shock absorber is eccentric rotation, so the moment of inertia changes continuously, and the vibration is further consumed through the continuously changing moment of inertia, achieving the purpose of noise reduction. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0015] Figure 1 It is a schematic diagram of the overall structure of the noise reduction structure, the liquid storage container and the compressor of the present application;
[0016] Figure 2 It is a cross-sectional view of the noise reduction structure, the liquid storage container and the compressor of the present application;
[0017] Figure 3 It is Figure 2 The enlarged view at A in
[0018] Figure 4 It is a cross-sectional view of the base in the noise reduction structure of the present application to show the buffer part and the counterweight part;
[0019] Figure 5 It is a cross-sectional view of the base and the liquid delivery pipe in the noise reduction structure of the present application;
[0020] Figure 6 It is a 1 / 4 cross-sectional view when the noise reduction structure of the present application is installed on the liquid storage container.
[0021] Explanation of the reference numerals in the drawings:
[0022] 1. Damper; 11. Damping member; 12. Base; 121. Avoidance channel; 122. Cavity; 123. Buffer part; 124. Counterweight part; 2. Shock absorber; 21. Eccentric wheel; 3. Liquid storage container; 31. Liquid delivery pipe; 4. Compressor.
[0023] The realization, functional features, and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Specific Embodiments
[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.
[0025] It should be noted that in the accompanying drawings of the specification of the present application, for the convenience of expression, the internal structure of the compressor is omitted and does not represent the compressor in actual application.
[0026] The embodiments of the present application provide a noise reduction structure to solve the problem of relatively large noise of the liquid receiver 3. The following will be described in conjunction with the accompanying drawings.
[0027] In the embodiments of the present application, as Figure 1 shown, the noise reduction structure includes a damper 1 and a vibration damping member 2. One end of the damper 1 is connected to the liquid receiver 3, and the vibration damping member 2 is eccentrically rotatably connected to the end of the damper 1 away from the liquid receiver 3. When the liquid receiver 3 vibrates, the damper 1 generates a damping force opposite to the vibration direction of the liquid receiver 3, and the damping force of the damper 1 acts on the liquid receiver 3 and drives the vibration damping member 2 to rotate eccentrically to cancel the vibration of the liquid receiver 3.
[0028] It should be noted that the damper 1 refers to a device for providing resistance to motion. The damper 1 here may include common damper types such as a spring damper and a hydraulic damper. The vibration damping member 2 being eccentrically rotatably connected to the end of the damper 1 away from the liquid receiver 3 means that the damper 1 can drive the polarization member 2 to rotate eccentrically; the polarization member 2 rotating eccentrically means that the polarization member 2 rotates under the action of an external force, but when the external force is removed, due to the continuous change of the moment of inertia, it can perform reciprocating rotation, such as an eccentric wheel 21.
[0029] In this way, when the liquid receiver 3 vibrates, the damper 1 generates a damping force opposite to the vibration force direction of the liquid receiver 3 and drives the vibration damping member 2 to rotate. On the one hand, the damper 1 absorbs part of the vibration of the liquid receiver 3 through the damping and vibration reduction method; on the other hand, the rotation axis of the vibration damping member 2 deviates from the mass center of the vibration damping member 2. Therefore, the rotation of the vibration damping member 2 is an eccentric rotation with a continuously changing moment of inertia, which can convert the vibration energy of the liquid receiver 3 into the kinetic energy of the vibration damping member 2 and consume it, thereby absorbing part of the vibration of the liquid receiver 3. Through the above two measures, the vibration of the liquid receiver 3 can be effectively absorbed, playing a better role in noise reduction.
[0030] In some embodiments, as Figure 2As shown in the figure, the damper 1 includes a damping member 11 and a base 12. The upper and lower ends of the damping member 11 are fixedly connected to the liquid storage tank 3 and the base 12 respectively, and the vibration damping member 2 is rotatably connected to the base 12.
[0031] It should be noted that the damping member 11 refers to a component for providing resistance to motion. Here, the damping member 11 can be the damping generating component of common dampers such as a spring damper or a hydraulic damper. The upper and lower ends of the damping member 11 being fixedly connected to the liquid storage tank 3 and the base 12 respectively can mean that: the upper end of the damping member 11 is fixedly connected to the liquid storage tank 3, and the lower end of the damping member 11 is fixedly connected to the base 12; or it can mean that: the lower end of the damping member 11 is fixedly connected to the liquid storage tank 3, and the upper end of the damping member 11 is fixedly connected to the base 12.
[0032] In some embodiments, as Figure 2 and Figure 3 shown in the figure, the upper end of the damping member 11 is fixedly connected to the lower end of the liquid storage tank 3. The base 12 is provided with an avoidance channel 121, and the liquid storage tank 3 is provided with an infusion pipe 31 for connecting to the compressor 4. The infusion pipe 31 is arranged in the avoidance channel 121. Here, the infusion pipe 31 refers to a pipe for introducing the refrigerant separated from gas and liquid in the liquid storage tank 3 into the compressor 4. By accommodating the infusion pipe 31 through the avoidance channel 121, it is possible to prevent the infusion pipe 31 from interfering and colliding with the base 12, ensuring the safe and unobstructed layout of the infusion pipe 31.
[0033] In some embodiments, as Figure 2 and Figure 3 shown in the figure, the base 12 includes a counterweight portion 124. A cavity 122 is provided inside the counterweight portion 124, and the vibration damping member 2 is arranged in the cavity 122. It should be noted that the counterweight portion 124 refers to a structure for increasing the mass of the base 12. The counterweight portion 124 can be made of a metal material, and the specific shape of the counterweight portion 124 is not limited. In this way, by increasing the mass of the base 12 through the counterweight portion 124, when the damping member 11 moves to drive the base 12 to move in the same direction, it can better offset the vibration of the liquid storage tank 3; at the same time, the cavity 122 of the counterweight portion 124 provides an installation space for the vibration damping member 2, preventing the vibration damping member 2 from colliding with other components when rotating.
[0034] In some embodiments, as Figure 4As shown, the base 12 further includes a buffer portion 123, and the buffer portion 123 wraps the weight portion 124. It should be noted that the buffer portion 123 refers to a structure that reduces the impact force when the base 12 collides with other structures, and the buffer portion 123 can be made of rubber. The buffer portion 123 wrapping the weight portion 124 means that the buffer portion 123 covers and closely adheres to the outer surface of the weight portion 124, and the weight portion 124 does not expose on the outer surface of the base 12. In some examples, the base 12 is provided with the above-mentioned avoidance channel 121, and the buffer portion 123 can cover the surface of the avoidance channel 121 together to form a buffer isolation between the weight portion 124 and the infusion tube 31, avoiding collision damage between the infusion tube 31 and the weight portion 124.
[0035] In some embodiments, as Figure 3 shown, the damping member 11 includes a spring, and both ends of the spring are respectively connected to the liquid storage device 3 and the base 12. In this way, when one end of the spring is connected to the upper end or the lower end of the liquid storage device 3, the reciprocating motion of the spring in the axial direction drives the base 12 and the vibration damping member 2 to move, so as to offset the longitudinal vibration of the liquid storage device 3. At the same time, the swing of the spring perpendicular to its own axis can also slow down the vibration of the liquid storage device 3 in the horizontal direction to a certain extent.
[0036] In some embodiments, as Figure 5 shown, a plurality of vibration damping members 2 are arranged at equal intervals along the circumferential direction of the damper 1. In this way, it is convenient to offset the vibrations of the liquid storage device 3 in different directions by the rotation of the plurality of vibration damping members 2, and the plurality of vibration damping members 2 are arranged at equal intervals to achieve the same vibration reduction and noise reduction effects in different directions as much as possible.
[0037] In some embodiments, as Figure 5 and Figure 6 shown, the rotation axis of the vibration damping member 2 is inclined to the damping force direction of the damper 1. It should be noted that the inclination means that there is an included angle between the rotation axis of the vibration damping member 2 and the damping force direction of the damper 1, and the included angle can be an acute angle or a right angle, preferably a right angle. In this way, when the liquid storage device 3 drives the vibration damping member 2 to move, with the rotation axis of the vibration damping member 2 as the boundary, the heavier side undergoes a longitudinal flip, better offsetting the longitudinal vibration of the liquid storage device 3.
[0038] In some embodiments, as Figure 5 and Figure 6 shown, the vibration damping member 2 includes an eccentric wheel 21, and the eccentric wheel 21 is rotatably connected to the damper 1, and the rotation axis of the eccentric wheel 21 deviates from the central axis of the eccentric wheel 21. It should be noted that the eccentric wheel 21 means that the rotation axis of the circular wheel deviates from the original mass center, that is, the geometric central axis.
[0039] An embodiment of the present application further provides a refrigeration compression device, which includes a compressor 4, a liquid receiver 3, and the above noise reduction structure. The specific structure of the noise reduction structure refers to the above embodiment. Since this refrigeration compression device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.
[0040] Among them, the liquid receiver 3 is provided with an infusion pipe 31. The infusion pipe 31 extends from the lower end of the liquid receiver 3 and is connected to the compressor 4. The noise reduction structure is installed at the lower end of the liquid receiver 3, and the infusion pipe 31 is embedded in the avoidance channel 121 on the base 12.
[0041] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0042] The above has introduced the noise reduction structure provided by the embodiments of the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.
Claims
1. A noise reduction structure, characterized in that: The invention comprises a damper (1) and a vibration-damping member (2), wherein one end of the damper (1) is connected to a liquid reservoir (3), and the vibration-damping member (2) is eccentrically rotationally connected to one end of the damper (1) away from the liquid reservoir (3); when the liquid reservoir (3) vibrates, the damper (1) generates a damping force in the opposite direction to the vibration direction of the liquid reservoir (3); the damping force of the damper (1) acts on the liquid reservoir (3) and drives the vibration-damping member (2) to rotate eccentrically to offset the vibration of the liquid reservoir (3).
2. A noise reduction structure according to claim 1, characterized in that: The damper (1) comprises a damping member (11) and a base (12); the upper end and the lower end of the damping member (11) are fixedly connected to the liquid reservoir (3) and the base (12) respectively; and the vibration-absorbing member (2) is rotatably connected to the base (12).
3. A noise reduction structure according to claim 2, characterized in that: The upper end of the damping member (11) is fixedly connected to the lower end of the liquid reservoir (3); the base (12) is provided with an escape channel (121); the liquid reservoir (3) is provided with an infusion tube (31) for connecting to a compressor (4); and the infusion tube (31) is arranged in the escape channel (121).
4. A noise reduction structure according to claim 2, characterized in that: The base (12) comprises a counterweight portion (124), a cavity (122) is provided inside the counterweight portion (124), and the vibration damping component (2) is arranged in the cavity (122).
5. A noise reduction structure according to claim 4, characterized in that: The base (12) further comprises a buffer portion (123), wherein the buffer portion (123) wraps the counterweight portion (124).
6. A noise reduction structure according to claim 2, characterized in that: The damping member (11) comprises a spring, and two ends of the spring are respectively connected to the liquid reservoir (3) and the base (12).
7. A noise reduction structure according to claim 1, characterized in that: A plurality of vibration-damping components (2) are arranged at equal intervals along the circumference of the damper (1).
8. The noise reduction structure according to claim 1, characterized in that: The rotation axis of the vibration damping member (2) is inclined to the damping force direction of the damper (1).
9. The noise reduction structure according to claim 1, characterized in that: The vibration damping member (2) comprises an eccentric wheel (21), the eccentric wheel (21) is rotatably connected to the damper (1), and the rotation axis of the eccentric wheel (21) deviates from the central axis of the eccentric wheel (21).
10. A refrigeration compression device, characterized in that: It comprises a compressor (4), a liquid reservoir (3) and a noise reduction structure according to any one of claims 1 to 9, wherein the liquid reservoir (3) is provided with an infusion tube (31), the infusion tube (31) connects the liquid reservoir (3) and the compressor (4), and the noise reduction structure is connected to the liquid reservoir (3).