Pipeline damping device and air conditioning unit

Abstract

The utility model discloses a pipeline damping device and an air conditioning unit, and relates to the technical field of heat exchange equipment. The damping device comprises a damping support and two damping shock absorbers, wherein the damping support is arranged on a unit bottom plate of the air conditioning unit. And the two damping shock absorbers are matched to form a pipeline mounting cavity for the connecting pipeline to penetrate through. The damping shock absorber comprises a shock absorption shell, an elastic shock absorption unit and shock absorption particles. The vibration reduction shell is connected with the damping support, and a vibration reduction cavity is formed in the vibration reduction shell. The elastic vibration reduction unit is located in the vibration reduction cavity. The vibration reduction particles are located in the vibration reduction cavities, and when the connecting pipeline vibrates, the vibration reduction particles collide with one another and collide with the elastic vibration reduction units to reduce vibration. Therefore, under the condition that the pipeline structure of the connecting pipeline is not changed, vibration of the connecting pipeline is effectively reduced, and the operation stability of the air conditioning unit is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a pipeline vibration damping device and an air conditioning unit. Background Technology

[0002] Connecting pipes, such as compressor pipes, are key components in refrigeration systems, connecting the compressor, condenser, and evaporator, and play a vital role in the operation of air conditioning units. However, during operation, these connecting pipes are inevitably subjected to excitation from other equipment (such as the compressor or fan) and the impact of fluid within the pipes, causing vibrations. When the natural frequency of the pipes is close to the operating frequency of the compressor, the vibration intensifies, creating a strong resonance phenomenon.

[0003] Such resonance not only generates significant noise, affecting the operating environment and user experience of the equipment, but also causes excessive stress on the pipes due to continuous vibration, potentially leading to pipe rupture and thus reducing the normal operation and safety of the air conditioning unit. Utility Model Content

[0004] This invention addresses the problem that continuous vibration in the connecting pipes of an air conditioning unit can lead to excessive stress in the pipes, which in turn can cause pipe breakage. The invention provides a pipe vibration damping device and an air conditioning unit that can overcome or at least partially solve the above problems.

[0005] Based on a first aspect of this utility model, a pipeline vibration damping device is provided. The device includes a damping bracket and two damping vibration dampers. The damping bracket is mounted on the base plate of an air conditioning unit. The two damping vibration dampers cooperate to form a pipeline mounting cavity through which a connecting pipeline passes. Each damping vibration damper includes a damping housing, an elastic damping unit, and damping particles. The damping housing is connected to the damping bracket, and a damping cavity is provided within the housing. The elastic damping unit is located within the cavity. The damping particles fill the cavity, wherein, when the connecting pipeline vibrates, two adjacent damping particles collide, and the collision between the particles and the elastic damping unit reduces vibration.

[0006] In one optional utility model, the elastic damping unit divides the damping cavity into a first damping cavity and a second damping cavity, wherein the first damping cavity and the second damping cavity are distributed at intervals along the axial direction of the pipeline mounting cavity and are respectively filled with the damping particles.

[0007] An optional utility model embodiment states that the elastic damping unit includes an elastic damping block, which is in contact with or fixed to the inner wall of the damping housing.

[0008] An optional utility model embodiment states that the vibration damping particles include at least one of the following: multi-element alloy particles and multi-element non-metallic particles.

[0009] One optional utility model embodiment states that the multi-element alloy particles include at least one of the following: iron-based alloy particles, magnesium alloy particles, and copper alloy particles.

[0010] An optional utility model includes the following: the multi-element non-metallic particles include at least one of the following: glass particles, oxide ceramic particles, carbide ceramic particles, and glass ceramic particles.

[0011] In one optional utility model, the damping particles are filled in the damping cavity at a rate between 70% and 95%.

[0012] In one optional utility model, two damping shock absorbers are respectively provided with mounting ears along the radial direction of the pipeline mounting cavity, wherein the two damping shock absorbers are fixed by the mounting ears.

[0013] An optional utility model describes an elastic vibration damping unit comprising a first baffle and an elastic element, wherein the first baffle is slidably connected to the vibration damping housing. The elastic element is fixed to the vibration damping housing and located on the end face of the first baffle away from the vibration damping particles. When the connecting pipe vibrates, two adjacent vibration damping particles collide with each other and with the first baffle, thereby compressing the elastic element to reduce vibration.

[0014] An optional utility model describes an elastic vibration damping unit comprising a first baffle, a second baffle, a damping plate, and at least two elastic elements. The first baffle is slidably connected to the damping housing and disposed within the first damping cavity. The second baffle is slidably connected to the damping housing and disposed within the second damping cavity, wherein the first baffle and the second baffle cooperate to form a buffer cavity. The damping plate is located within the buffer cavity and is fixedly connected to the damping housing. At least two elastic elements are fixed to the damping plate, and at least one elastic element is in contact with or fixed to the first baffle, and at least one elastic element is in contact with or fixed to the second baffle. When the connecting pipeline vibrates, damping particles located in the first damping cavity collide with the first baffle to compress the elastic elements and reduce vibration, and damping particles located in the second damping cavity collide with the second baffle to compress the elastic elements and reduce vibration.

[0015] Based on a second aspect of this utility model, an air conditioning unit is also provided, the air conditioning unit including a pipeline vibration damping device and a connecting pipeline as described in any of the above utility model contents, the connecting pipeline passing through the pipeline mounting cavity.

[0016] In one optional aspect of the utility model, when one pipeline vibration damping device is provided, the device is located in the area of ​​maximum operational vibration of the connecting pipeline. When at least two vibration damping devices are provided, these devices are spaced apart along the length of the connecting pipeline.

[0017] Compared with existing technologies, this utility model includes a damping bracket and two damping vibration dampers, with the damping bracket mounted on the base plate of the air conditioning unit. The two damping vibration dampers cooperate to form a pipe mounting cavity through which the connecting pipes pass. Each damping vibration damper includes a vibration damping housing, an elastic vibration damping unit, and vibration damping particles. The vibration damping housing is connected to the damping bracket, and a vibration damping cavity is provided within the vibration damping housing. The elastic vibration damping unit is located within the vibration damping cavity. The vibration damping particles fill the vibration damping cavity, wherein, when the connecting pipe vibrates, two adjacent vibration damping particles collide, and the vibration damping particles collide with the elastic vibration damping unit to reduce vibration. Therefore, without changing the pipe structure, the vibration of the connecting pipe can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the assembly structure of a pipeline vibration damping device and a connecting pipeline provided in an embodiment of this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of a pipeline vibration damping device provided in an embodiment of this utility model;

[0023] Figure 3 This is a partial structural schematic diagram of a pipeline vibration damping device provided in an embodiment of the present utility model;

[0024] Figure 4This is a schematic diagram of the cross-sectional structure of a damping vibration absorber provided in an embodiment of this utility model;

[0025] Figure 5 yes Figure 1 Enlarged structural diagram at point A;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of another damping vibration damper provided in this embodiment of the utility model.

[0027] Reference numerals: 1. Damping bracket; 2. Damping damper; 201. Pipeline mounting cavity; 21. Damping housing; 2101. First damping cavity; 2102. Second damping cavity; 211. Side housing; 212. Upper cover plate; 213. Lower cover plate; 22. Elastic damping unit; 221. Elastic damping block; 222. First baffle; 223. Second baffle; 224. Damping plate; 225. Elastic element; 23. Damping particle; 3. Mounting ear; 301. Assembly hole; 4. Connecting pipeline; 5. Compressor. Detailed Implementation

[0028] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0029] Connecting pipes, such as compressor pipes, are key components in refrigeration systems, connecting the compressor, condenser, and evaporator, and play a vital role in the operation of air conditioning units. However, during operation, these connecting pipes are inevitably subjected to excitation from other equipment (such as the compressor or fan) and the impact of fluid within the pipes, causing vibrations. When the natural frequency of the pipes is close to the operating frequency of the compressor, the vibration intensifies, creating a strong resonance phenomenon.

[0030] Such resonance not only generates significant noise, affecting the operating environment and user experience of the equipment, but also causes excessive stress on the pipes due to continuous vibration, potentially leading to pipe rupture and thus reducing the normal operation and safety of the air conditioning unit.

[0031] Based on the aforementioned technical problems, this utility model embodiment is proposed. This utility model embodiment may include a damping bracket 1 and two damping vibration dampers 2. The damping bracket 1 is mounted on the base plate of the air conditioning unit. The two damping vibration dampers 2 cooperate to form a pipe mounting cavity 201 through which the connecting pipe 4 passes. Each damping vibration damper 2 includes a vibration damping housing 21, an elastic vibration damping unit 22, and vibration damping particles 23. The vibration damping housing 21 is connected to the damping bracket 1, and a vibration damping cavity is provided within the vibration damping housing 21. The elastic vibration damping unit 22 is located within the vibration damping cavity. The vibration damping particles 23 fill the vibration damping cavity. When the connecting pipe 4 vibrates, two adjacent vibration damping particles 23 collide, and the vibration damping particles 23 collide with the elastic vibration damping unit 22 to reduce vibration. Therefore, without changing the pipe structure of the connecting pipe 4, the vibration of the connecting pipe 4 can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0032] Reference Figure 1-6 This utility model provides a pipeline vibration damping device, which may include a damping bracket 1 and two damping vibration dampers 2. The damping bracket 1 is mounted on the base plate of an air conditioning unit. The two damping vibration dampers 2 cooperate to form a pipeline mounting cavity 201 through which a connecting pipeline 4 passes. Each damping vibration damper 2 includes a vibration damping housing 21, an elastic vibration damping unit 22, and vibration damping particles 23. The vibration damping housing 21 is connected to the damping bracket 1, and a vibration damping cavity is provided inside the vibration damping housing 21. The elastic vibration damping unit 22 is located in the vibration damping cavity, and the vibration damping particles 23 fill the vibration damping cavity. When the connecting pipeline 4 vibrates, two adjacent vibration damping particles 23 collide, and the vibration damping particles 23 collide with the elastic vibration damping unit 22 to reduce vibration.

[0033] In this embodiment of the invention, the pipeline vibration damping device is used to reduce the vibration of the connecting pipeline 4 of the air conditioning unit. The connecting pipeline 4 can be at least one of the following: a compressor pipeline, a fan pipeline, and a water pump pipeline. The compressor pipeline is used to connect the compressor 5 with other equipment (such as a condenser, evaporator, and gas tank) to form a complete compressed gas delivery and circulation system. The fan pipeline refers to the pipeline connected to the fan of the air conditioning unit for transporting air, and it can include one of the following: a supply air duct, a return air duct, and a fresh air duct. The water pump pipeline refers to the pipeline in a water-cooled air conditioning unit that connects the water pump to the air conditioning unit and other related equipment.

[0034] The pipeline vibration damping device may include a damping bracket 1 and two damping dampers 2. The damping bracket 1 provides mounting for the damping dampers 2, and the damping dampers 2 reduce the vibration of the connecting pipeline 4. The two damping dampers 2 cooperate to form a pipeline mounting cavity 201 through which the connecting pipeline 4 passes. For example, the pipeline mounting cavity 201 is shape-fitted to the connecting pipeline 4, and the cross-sectional shape of the pipeline mounting cavity 201 is circular. Correspondingly, the two damping dampers 2 can be distributed on both radial sides of the connecting pipeline 4 and assembled from left and right contact. The connecting pipeline 4 can be confined in the pipeline mounting cavity 201, and the connecting pipeline 4 can be pressed against the cavity wall of the pipeline mounting cavity 201, thereby accurately transmitting the vibration of the connecting pipeline 4 to the damping dampers 2.

[0035] The damping vibration damper 2 may include a damping housing 21, an elastic damping unit 22, and damping particles 23. The damping housing 21 is connected to the damping bracket 1, and the damping housing 21 provides structural support and installation for other components of the damping vibration damper 2 besides itself. In one or more embodiments, the damping housing 21 and the damping bracket 1 are detachably connected. For example, the damping housing 21 and the damping bracket 1 are detachably connected by bolts, screws, or other connecting parts, thereby facilitating the assembly and disassembly of the damping vibration damper 2 onto the damping bracket 1. Correspondingly, the damping bracket 1 and the base plate of the air conditioning unit can be fixedly connected by threaded connections, welding, or other methods. The damping bracket 1 may be a tubular structure made of metal material, or it may be a plate structure made of metal material.

[0036] The vibration damping housing 21 contains a vibration damping cavity, which is closed, meaning it has no opening connecting it to the outside. In one or more embodiments, the vibration damping housing 21 may include a side housing 211, an upper cover plate 212, and a lower cover plate 213, which together form the closed vibration damping cavity. The side housing 211 and the upper cover plate 212, and the side housing 211 and the lower cover plate 213, can be fixedly connected by welding or other methods.

[0037] The elastic damping unit 22 may include an elastic element 225 made of elastic material, which has good elastic deformation capability. When the damping particles 23 are subjected to vibration excitation from the connecting pipe 4, the elastic damping unit 22 can absorb and buffer vibration energy through its own elastic deformation, and convert the mechanical energy of the vibration into the deformation energy of the elastic damping unit 22. This reduces the vibration amplitude of the damping particles 23 and the vibration amplitude of the connecting pipe 4.

[0038] The vibration damping particles 23 fill the vibration damping cavity. When the vibration damping particles 23 are excited by the vibration of the connecting pipe 4, two adjacent vibration damping particles 23 will collide and rub against each other, thereby converting vibration energy into heat energy for energy consumption. This can reduce the vibration energy of the connecting pipe 4.

[0039] Therefore, when the damping vibration damper 2 is subjected to vibration excitation from the connecting pipe 4, the movement of the connecting pipe 4 is hindered by the mutual collisions and friction between the damping particles 23 in the damping cavity, the collisions between the damping particles 23 and the damping housing 21, and the collisions between the damping particles 23 and the elastic damping unit 22. This converts the mechanical energy of the vibration of the connecting pipe 4 into heat energy or deformation energy, thereby reducing the vibration amplitude of the connecting pipe 4 through damping. Thus, without changing the pipe structure of the connecting pipe 4, the vibration of the connecting pipe 4 can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0040] In summary, this utility model discloses a pipeline vibration damping device, which may include a damping bracket 1 and two damping vibration dampers 2. The damping bracket 1 is mounted on the base plate of the air conditioning unit. The two damping vibration dampers 2 cooperate to form a pipeline mounting cavity 201 through which the connecting pipeline 4 passes. The damping vibration damper 2 includes a vibration damping housing 21, an elastic vibration damping unit 22, and vibration damping particles 23. The vibration damping housing 21 is connected to the damping bracket 1, and a vibration damping cavity is provided inside the vibration damping housing 21. The elastic vibration damping unit 22 is located in the vibration damping cavity. The vibration damping particles 23 fill the vibration damping cavity, wherein, when the connecting pipeline 4 vibrates, two adjacent vibration damping particles 23 collide, and the vibration damping particles 23 collide with the elastic vibration damping unit 22 to reduce vibration. Thus, without changing the pipeline structure of the connecting pipeline 4, the vibration of the connecting pipeline 4 can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0041] An optional embodiment of the utility model, referring to... Figure 4 and Figure 6As shown, the elastic damping unit 22 divides the damping cavity into a first damping cavity 2101 and a second damping cavity 2102. The first damping cavity 2101 and the second damping cavity 2102 are distributed at intervals along the axial direction of the pipeline mounting cavity 201 and are respectively filled with the damping particles 23.

[0042] In this embodiment of the invention, the elastic damping unit 22 can be located in the central region of the damping cavity along the axial direction of the pipeline mounting cavity 201, thereby dividing the damping cavity into a first damping cavity 2101 and a second damping cavity 2102. A portion of the damping particles 23 are filled in the first damping cavity 2101, and a portion of the damping particles 23 are filled in the second damping cavity 2102. The first damping cavity 2101 and the second damping cavity 2102 are distributed at intervals along the axial direction of the pipeline mounting cavity 201.

[0043] The damping particles 23 are dispersed on both sides of the elastic damping unit 22, which increases the number of damping particles 23 that collide with the elastic damping unit 22. This allows for full utilization of the elastic deformation that the elastic damping unit 22 can undergo upon impact, absorbing and buffering more vibration energy and converting the mechanical energy of the vibration into the deformation energy of the elastic damping unit 22. This further reduces the vibration amplitude of the connecting pipe 4 and optimizes the performance of the damping shock absorber 2.

[0044] An optional embodiment of the utility model, referring to... Figure 4 As shown, the elastic damping unit 22 includes an elastic damping block 221, which is in contact with or fixed to the inner wall of the damping housing 21.

[0045] In this embodiment of the invention, the elastic damping unit 22 includes an elastic damping block 221. The elastic damping block 221 can be an elastic block structure, and its cross-sectional shape can be adapted to the cross-sectional shape of the damping cavity, thereby allowing the elastic damping block 221 to contact the inner wall of the damping housing 21. This contact can include both pressure-free and pressure-free contact. In pressure-free contact, the elastic damping block 221 can have a clearance fit with the damping cavity. Alternatively, in pressure-free contact, the elastic damping block 221 can have an interference fit with the damping cavity. Alternatively, the elastic damping block 221 can be fixed to the damping housing 21 by means of bonding or other methods.

[0046] In one or more embodiments, the elastic damping block 221 may also be made of rubber, plastic, or silicone materials. Those skilled in the art can determine the specific elastic material according to actual design requirements, and no further limitations are made here.

[0047] By employing the elastic damping block 221, the production cost of the elastic damping unit 22 can be reduced while simplifying its structure. Furthermore, when the vibration amplitude of the connecting pipe 4 is low, the collision and friction between the damping particles 23 are weak. This results in poor damping performance of the damping particles 23, which can be mitigated by the elasticity of the elastic damping block 221. This effectively reduces the vibration amplitude of the connecting pipe 4 and ensures the damping performance of the damping damper 2 under various vibration conditions.

[0048] In one optional embodiment of the utility model, the vibration damping particles 23 include at least one of the following: multi-element alloy particles and multi-element non-metallic particles.

[0049] In this embodiment of the invention, the type of the damping particles 23 may include at least one of the following: multi-element alloy particles and multi-element non-metallic particles. This can be understood as the damping particles 23 filling the damping cavity being entirely composed of multi-element alloy particles. Alternatively, the damping particles 23 filling the damping cavity may be entirely composed of multi-element non-metallic particles. Or, a portion of the damping particles 23 in the damping cavity may be multi-element alloy particles, and the other portion may be multi-element non-metallic particles.

[0050] Multi-element alloy particles can be understood as spherical particles composed of multiple metallic elements. These particles typically possess good structural plasticity and strength. When subjected to vibration excitation from the connecting pipe 4, the multi-element alloy particles can undergo a certain degree of plastic deformation, absorbing and dissipating vibrational energy through internal dislocation movement, grain slip, and other mechanisms. The multi-element alloy particles possess appropriate hardness and strength, thus, when acting as vibration damping particles 23, they can maintain their shape and structural integrity when in contact or interacting with themselves (vibration damping particles 23), the elastic vibration damping unit 22, and the vibration damping shell 21. Furthermore, they can dissipate the vibrational energy of the connecting pipe 4 through friction and collision with themselves (vibration damping particles 23), the elastic vibration damping unit 22, and the vibration damping shell 21. By converting vibrational energy into elasticity and heat, the vibration amplitude of the connecting pipe 4 can be effectively reduced.

[0051] Multi-element non-metallic particles refer to spherical particles composed of two or more non-metallic elements. These particles possess good structural elasticity and strength. When subjected to vibration excitation by the connecting pipe 4, the multi-element non-metallic particles can undergo elastic deformation to absorb and store vibrational energy. Furthermore, the multi-element non-metallic particles can maintain their shape and structural integrity when in contact or interacting with themselves (vibration damping particles 23), the elastic vibration damping unit 22, and the vibration damping shell 21, while also dissipating the vibrational energy of the connecting pipe 4 through friction and collision with these elements. By converting vibrational energy into elasticity and heat, the vibration amplitude of the connecting pipe 4 can be effectively reduced.

[0052] In summary, using multi-element alloy particles and / or multi-element non-metallic particles as damping particles 23 can not only improve the damping performance of the damping particles 23, but also increase the service life of the damping damper 2.

[0053] In one optional embodiment of the utility model, the multi-element alloy particles include at least one of the following: iron-based alloy particles, magnesium alloy particles, and copper alloy particles.

[0054] In this embodiment of the invention, iron-based alloy particles refer to spherical particles formed by adding carbon and other metallic elements (such as at least one of chromium, nickel, molybdenum, tungsten, vanadium, etc.) to iron as the matrix. For example, iron-based alloy particles may include carbon steel particles, stainless steel particles, etc. Magnesium alloy particles refer to spherical particles formed by adding other elements (such as at least one of aluminum, zinc, manganese, rare earth elements, etc.) to magnesium as the base. Copper alloy particles refer to spherical particles formed by adding other metallic elements (such as at least one of zinc, tin, aluminum, nickel, lead, etc.) to copper as the matrix. The multi-element alloy particles include at least one of the following: iron-based alloy particles, magnesium alloy particles, and copper alloy particles, which can be understood as:

[0055] When the vibration damping cavity includes multi-element alloy particles as vibration damping particles 23, the corresponding vibration damping particles 23 can all be iron-based alloy particles. Alternatively, the corresponding vibration damping particles 23 in the vibration damping cavity can all be magnesium alloy particles. Alternatively, the corresponding vibration damping particles 23 in the vibration damping cavity can all be copper alloy particles. Or, when the multi-element alloy particles in the vibration damping cavity are used as vibration damping particles 23, a portion can be iron-based alloy particles, and another portion can be magnesium alloy particles. Or, when the multi-element alloy particles in the vibration damping cavity are used as vibration damping particles 23, a portion can be iron-based alloy particles, and another portion can be copper alloy particles. Or, when the multi-element alloy particles in the vibration damping cavity are used as vibration damping particles 23, a portion can be magnesium alloy particles, and another portion can be copper alloy particles. Or, when the multi-element alloy particles in the vibration damping cavity are used as vibration damping particles 23, a portion can be iron-based alloy particles, a portion can be magnesium alloy particles, and another portion can be copper alloy particles.

[0056] In one optional embodiment of the utility model, the multi-element non-metallic particles include at least one of the following: glass particles, oxide ceramic particles, carbide ceramic particles, and glass ceramic particles.

[0057] In this embodiment of the invention, glass particles refer to spherical glassy particles with a particle size within a certain range. Oxide ceramic particles refer to spherical ceramic particles with oxides as the main component. Carbide ceramic particles refer to spherical ceramic particles with carbides as the main component. Glass-ceramic particles refer to spherical particles that combine the properties of glass and ceramics. The multi-element non-metallic particles include at least one of the following: glass particles, oxide ceramic particles, carbide ceramic particles, and glass-ceramic particles, which can be understood as:

[0058] When the vibration damping cavity includes multiple non-metallic particles as damping particles 23, it can be entirely composed of glass particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, it can be entirely composed of oxide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, it can be entirely composed of carbide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, it can be entirely composed of glass ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be glass particles and another portion can be oxide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be glass particles and another portion can be carbide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be glass particles and another portion can be glass ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be oxide ceramic particles and the other portion can be carbide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be oxide ceramic particles and the other portion can be glass ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion can be carbide ceramic particles and the other portion can be glass ceramic particles.

[0059] Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion may be glass particles, a portion may be oxide ceramic particles, and the remaining portion may be carbide ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion may be glass particles, a portion may be oxide ceramic particles, and the remaining portion may be glass-ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion may be glass particles, a portion may be carbide ceramic particles, and the remaining portion may be glass-ceramic particles. Alternatively, when the vibration damping cavity includes multiple non-metallic particles as damping particles 23, a portion may be oxide ceramic particles, a portion may be carbide ceramic particles, and the remaining portion may be glass-ceramic particles.

[0060] Alternatively, when the vibration damping cavity includes multiple non-metallic particles as vibration damping particles 23, a portion of them are glass particles, a portion are oxide ceramic particles, a portion are carbide ceramic particles, and the remaining portion are glass ceramic particles.

[0061] In one optional embodiment of the utility model, the damping particles 23 have a filling rate between 70% and 95% in the damping cavity.

[0062] In this embodiment of the invention, the filling rate of the damping particles 23 in the damping cavity is between 70% and 95%. For example, the filling rate of the damping particles 23 in the damping cavity can be 70%, 80%, 90%, and 95%, etc. Those skilled in the art can determine the specific filling rate according to actual design requirements, and no further limitations are made here. When the filling rate is less than 70%, the friction between the damping particles 23 when subjected to vibration excitation will be reduced, thereby reducing the damping effect of the damping device.

[0063] When the filling rate exceeds 95%, the excessive filling rate restricts the movement space of the damping particles 23 within the damping cavity, thus reducing the damping effect of the damping device. Therefore, within the filling rate range of 70% to 95%, the damping effect on the connecting pipe 4 can be improved. For example, the filling rate of the damping cavity can be directly proportional to the filling rate of the damping particles 23 within the damping cavity.

[0064] In one or more embodiments, the particle size of the damping particles 23 affects the collision frequency and friction between the damping particles 23. For example, larger-diameter damping particles 23 increase the collision kinetic energy between them, which may correspondingly reduce the collision frequency. Smaller-diameter damping particles 23 increase the collision frequency, but the kinetic energy of a single collision is lower. The particle size of the damping particles 23 can be obtained by the following calculation: the product of the actual vibration frequency and vibration amplitude of the connecting pipe 4, divided by the square root of the product of the friction coefficient between the damping particles 23 and the material density of the damping particles 23. This ensures that the particle size of the damping particles 23 matches the vibration characteristics of the connecting pipe 4. For example, by selecting different types of damping particles 23, and selecting the density and particle size of the damping particles 23, the vibration damping effect of the pipe under test can be comprehensively improved.

[0065] In summary, the pipeline vibration damping device has a simple structure and is easy to install and maintain. Furthermore, due to the stable performance of the damping particles 23 in the damping damper 2, it can withstand harsh environments such as high and low temperatures, exhibiting high reliability and a long service life.

[0066] An optional embodiment of the utility model, referring to... Figure 2-6 As shown, the two damping shock absorbers 2 are respectively provided with mounting ears 3 along the radial direction of the pipeline mounting cavity 201, wherein the two damping shock absorbers 2 are fixed by the mounting ears 3.

[0067] In this embodiment of the present invention, for each of the damping vibration dampers 2, a mounting ear 3 may be provided radially along the pipeline mounting cavity 201, wherein the mounting ear 3 may be integrally formed with the vibration damping housing 21. The mounting ear 3 is used to connect two of the damping vibration dampers 2 and to connect the damping vibration damper 2 and the damping bracket 1.

[0068] In one or more embodiments, the mounting ear 3 is provided with an assembly hole 301, and the two damping dampers 2, or the damping damper 2 and the damping bracket 1, can be fixed by means of connection such as screws and nuts, bolts and nuts.

[0069] At least one mounting ear 3 may be provided on each of the damping dampers 2. When the number of mounting ears 3 is at least two, the at least two mounting ears 3 are spaced apart along the radial direction of the damping damper 2.

[0070] An optional embodiment of the utility model, referring to... Figure 6 As shown, the elastic damping unit 22 includes a first baffle 222 and an elastic element 225. The first baffle 222 is slidably connected to the damping housing 21. The elastic element 225 is fixed to the damping housing 21 and is located on the end face of the first baffle 222 away from the damping particles 23. When the connecting pipe 4 vibrates, two adjacent damping particles 23 collide with each other and with the first baffle 222, thereby compressing the elastic element 225 to reduce vibration.

[0071] In this embodiment of the invention, the elastic damping unit 22 may include a first baffle 222 and an elastic element 225. The first baffle 222 is slidably connected to the damping housing 21. Thus, the first baffle 222 slides along the axial direction of the damping housing 21 under the action of an external force. The elastic element 225 is fixed to the damping housing 21. Therefore, the damping housing 21 can limit the movement of the elastic element 225. The elastic element 225 may include, but is not limited to, a spring or a pressure tongue.

[0072] In one example, when the elastic element 225 includes a spring, a limiting rod or limiting member can be provided on the damping housing 21 to fix the elastic element 225 and axially limit its movement. The first baffle 222 abuts against the spring, thereby increasing the contact surface between the damping particle 23 and the spring. Thus, when the damping damper 2 is subjected to vibration excitation, the damping particle 23 located in the damping cavity can collide with the first baffle 222 and compress the spring. The spring absorbs and buffers vibration energy through its own elastic deformation, converting the mechanical energy of the vibration into the deformation energy of the spring. This reduces the vibration amplitude of the damping particle 23 and the vibration amplitude of the connecting pipe 4.

[0073] In another example, when the elastic element 225 is a pressure tongue, the pressure tongue can be fixedly connected to the damping housing 21, and the first baffle 222 forms an abutment with the end of the pressure tongue away from the damping housing 21. This allows the contact surface between the damping particles 23 and the pressure tongue to be increased through the first baffle 222. Consequently, when the damping damper 2 is subjected to vibration excitation, the damping particles 23 located in the damping cavity can collide with the first baffle 222 and compress the pressure tongue. The pressure tongue absorbs and buffers vibration energy through its own elastic deformation, converting the mechanical energy of the vibration into the deformation energy of the pressure tongue. This reduces the vibration amplitude of the damping particles 23 and the vibration amplitude of the connecting pipe 4.

[0074] In this application, the number of elastic elements 225 can be multiple. The multiple elastic elements 225 can be distributed radially at intervals along the pipeline mounting cavity 201.

[0075] An optional embodiment of the utility model, referring to... Figure 6As shown, the elastic damping unit 22 includes a first baffle 222, a second baffle 223, a damping plate 224, and at least two elastic elements 225. The first baffle 222 is slidably connected to the damping housing 21 and is disposed in the first damping cavity 2101. The second baffle 223 is slidably connected to the damping housing 21 and is disposed in the second damping cavity 2102, wherein the first baffle 222 and the second baffle 223 cooperate to form a buffer cavity. The damping plate 224 is located in the buffer cavity and is fixedly connected to the damping housing 21. At least two elastic elements 225 are fixed to the damping plate 224, and at least one elastic element 225 is in contact with or fixed to the first baffle 222 and at least one elastic element 225 is in contact with or fixed to the second baffle 223. When the connecting pipe 4 vibrates, the damping particles 23 located in the first damping cavity 2101 collide with the first baffle 222 to compress the elastic element 225 and reduce vibration, and the damping particles 23 located in the second damping cavity 2102 collide with the second baffle 223 to compress the elastic element 225 and reduce vibration.

[0076] In this embodiment of the present invention, when the elastic damping unit 22 divides the damping cavity into a first damping cavity 2101 and a second damping cavity 2102, the elastic damping unit 22 may include a first baffle 222, a second baffle 223, a damping plate 224, and at least two elastic elements 225. The at least two elastic elements 225 are respectively disposed on both sides of the damping plate 224, and the damping plate 224 limits and fixes the elastic elements 225. The first baffle 222 is located in the first damping cavity 2101 and is slidably connected to the damping housing 21. The first baffle 222 can slide along the damping housing 21 under external force. The second baffle 223 is located in the second damping cavity 2102 and is slidably connected to the damping housing 21. The second baffle 223 can slide along the damping housing 21 under external force.

[0077] The first baffle 222, the second baffle 223, and the vibration-damping housing form a buffer cavity, and the vibration-damping plate 224 is located in the buffer cavity. At least one elastic element 225 is in contact with or fixed to the first baffle 222, and at least one elastic element 225 is in contact with or fixed to the second baffle 223. Therefore, when the damping vibration damper 2 is subjected to vibration excitation, the damping particles 23 located in the first damping cavity 2101 can collide with the first baffle 222 and compress the elastic element 225. The elastic element 225 absorbs and buffers vibration energy through its own elastic deformation, converting the mechanical energy of the vibration into the deformation energy of the elastic element 225. This reduces the vibration amplitude of the damping particles 23 and the vibration amplitude of the connecting pipe 4.

[0078] When the damping damper 2 is subjected to vibration excitation, the damping particles 23 located in the second damping cavity 2102 can collide with the second baffle and compress the elastic element 225. The elastic element 225 absorbs and buffers vibration energy through its own elastic deformation, and converts the mechanical energy of the vibration into the deformation energy of the elastic element 225. This reduces the vibration amplitude of the damping particles 23 and the vibration amplitude of the connecting pipe 4.

[0079] In summary, this utility model discloses a pipeline vibration reduction device. The air conditioning unit may include a damping bracket 1 and two damping vibration dampers 2. The damping bracket 1 is installed on the base plate of the air conditioning unit. The two damping vibration dampers 2 cooperate to form a pipeline mounting cavity 201 through which the connecting pipeline 4 passes. The damping vibration damper 2 includes a vibration damping housing 21, an elastic vibration damping unit 22, and vibration damping particles 23. The vibration damping housing 21 is connected to the damping bracket 1, and a vibration damping cavity is provided inside the vibration damping housing 21. The elastic vibration damping unit 22 is located in the vibration damping cavity. The vibration damping particles 23 fill the vibration damping cavity. When the connecting pipeline 4 vibrates, two adjacent vibration damping particles 23 collide, and the vibration damping particles 23 collide with the elastic vibration damping unit 22 to reduce vibration. Thus, without changing the pipeline structure of the connecting pipeline 4, the vibration of the connecting pipeline 4 can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0080] This utility model embodiment also provides an air conditioning unit, see reference. Figure 1As shown, the air conditioning unit includes a pipe vibration damping device and a connecting pipe 4 as described in any of the above-described embodiments. The pipe vibration damping device may include a damping bracket 1 and two damping dampers 2. The damping bracket 1 is mounted on the base plate of the air conditioning unit. The two damping dampers 2 cooperate to form a pipe mounting cavity 201 through which the connecting pipe 4 passes. The damping damper 2 includes a damping housing 21, an elastic damping unit 22, and damping particles 23. The damping housing 21 is connected to the damping bracket 1, and a damping cavity is provided inside the damping housing 21. The elastic damping unit 22 is located in the damping cavity. The damping particles 23 fill the damping cavity, wherein, when the connecting pipe 4 vibrates, two adjacent damping particles 23 collide, and the collision between the damping particles 23 and the elastic damping unit 22 reduces vibration.

[0081] In this embodiment of the invention, the pipeline vibration damping device is used to reduce the vibration of the connecting pipeline 4 of the air conditioning unit. The connecting pipeline 4 can be at least one of the following: a compressor pipeline, a fan pipeline, and a water pump pipeline. The compressor pipeline is used to connect the compressor 5 with other equipment (such as a condenser, evaporator, and gas tank) to form a complete compressed gas delivery and circulation system. The fan pipeline refers to the pipeline connected to the fan of the air conditioning unit for transporting air, and it can include one of the following: a supply air duct, a return air duct, and a fresh air duct. The water pump pipeline refers to the pipeline in a water-cooled air conditioning unit that connects the water pump to the air conditioning unit and other related equipment.

[0082] The pipeline vibration damping device may include a damping bracket 1 and two damping dampers 2. The damping bracket 1 provides mounting for the damping dampers 2, and the damping dampers 2 reduce the vibration of the connecting pipeline 4. The two damping dampers 2 cooperate to form a pipeline mounting cavity 201 through which the connecting pipeline 4 passes. For example, the pipeline mounting cavity 201 is shape-fitted to the connecting pipeline 4, and the cross-sectional shape of the pipeline mounting cavity 201 is circular. Correspondingly, the two damping dampers 2 can be distributed on both radial sides of the connecting pipeline 4 and assembled from left and right contact. The connecting pipeline 4 can be confined in the pipeline mounting cavity 201, and the connecting pipeline 4 can be pressed against the cavity wall of the pipeline mounting cavity 201, thereby accurately transmitting the vibration of the connecting pipeline 4 to the damping dampers 2.

[0083] The damping vibration damper 2 may include a damping housing 21, an elastic damping unit 22, and damping particles 23. The damping housing 21 is connected to the damping bracket 1, and the damping housing 21 provides structural support and installation for other components of the damping vibration damper 2 besides itself. In one or more embodiments, the damping housing 21 and the damping bracket 1 are detachably connected. For example, the damping housing 21 and the damping bracket 1 are detachably connected by bolts, screws, or other connecting parts, thereby facilitating the assembly and disassembly of the damping vibration damper 2 onto the damping bracket 1. Correspondingly, the damping bracket 1 and the base plate of the air conditioning unit can be fixedly connected by threaded connections, welding, or other methods. The damping bracket 1 may be a tubular structure made of metal material, or it may be a plate structure made of metal material.

[0084] The vibration damping housing 21 contains a vibration damping cavity, which is closed, meaning it has no opening connecting it to the outside. In one or more embodiments, the vibration damping housing 21 may include a side housing 211, an upper cover plate 212, and a lower cover plate 213, which together form the closed vibration damping cavity. The side housing 211 and the upper cover plate 212, and the side housing 211 and the lower cover plate 213, can be fixedly connected by welding or other methods.

[0085] The elastic damping unit 22 may include an elastic element 225 made of elastic material, which has good elastic deformation capability. When the damping particles 23 are subjected to vibration excitation from the connecting pipe 4, the elastic damping unit 22 can absorb and buffer vibration energy through its own elastic deformation, and convert the mechanical energy of the vibration into the deformation energy of the elastic damping unit 22. This reduces the vibration amplitude of the damping particles 23 and the vibration amplitude of the connecting pipe 4.

[0086] The vibration damping particles 23 fill the vibration damping cavity. When the vibration damping particles 23 are excited by the vibration of the connecting pipe 4, two adjacent vibration damping particles 23 will collide and rub against each other, thereby converting vibration energy into heat energy for energy consumption. This can reduce the vibration energy of the connecting pipe 4.

[0087] Therefore, when the damping vibration damper 2 is subjected to vibration excitation from the connecting pipe 4, the movement of the connecting pipe 4 is hindered by the mutual collisions and friction between the damping particles 23 in the damping cavity, the collisions between the damping particles 23 and the damping housing 21, and the collisions between the damping particles 23 and the elastic damping unit 22. This converts the mechanical energy of the vibration of the connecting pipe 4 into heat energy or deformation energy, thereby reducing the vibration amplitude of the connecting pipe 4 through damping. Thus, without changing the pipe structure of the connecting pipe 4, the vibration of the connecting pipe 4 can be effectively reduced, and the operational stability of the air conditioning unit can be improved.

[0088] In summary, air conditioning units equipped with the aforementioned pipe vibration damping devices can effectively reduce the vibration of connecting pipe 4 without altering its pipe structure, and improve the operational stability of the air conditioning unit.

[0089] In one optional embodiment of the utility model, when one pipeline vibration damping device is provided, the pipeline vibration damping device is located in the area of ​​greatest operating vibration of the connecting pipeline 4. When at least two pipeline vibration damping devices are provided, at least two of the pipeline vibration damping devices are distributed at intervals along the length direction of the connecting pipeline 4.

[0090] In this embodiment of the invention, considering the limited assembly space of the connecting pipe 4 of the air conditioning unit, for example, the region of maximum operating vibration (e.g., maximum operating vibration amplitude) of the connecting pipe 4 can be identified by strain / noise testing and finite element simulation calculation, combined with spectrum analysis. For example, when the connecting pipe 4 is a compressor pipe, the region of maximum operating vibration may be the U-shaped bend of the compressor 5 suction pipe.

[0091] In applications with large assembly spaces, at least two pipe vibration damping devices can be provided. These at least two devices can be spaced apart along the length of the connecting pipe 4. This allows for improved vibration damping of the connecting pipe 4 through multiple devices.

[0092] In summary, this utility model discloses an air conditioning unit, which may include a damping bracket 1 and two damping vibration dampers 2. The damping bracket 1 is mounted on the base plate of the air conditioning unit. The two damping vibration dampers 2 cooperate to form a pipe mounting cavity 201 through which a connecting pipe 4 passes. The damping vibration damper 2 includes a vibration damping housing 21, an elastic vibration damping unit 22, and vibration damping particles 23. The vibration damping housing 21 is connected to the damping bracket 1, and a vibration damping cavity is provided inside the vibration damping housing 21. The elastic vibration damping unit 22 is located in the vibration damping cavity. The vibration damping particles 23 fill the vibration damping cavity, wherein, when the connecting pipe 4 vibrates, two adjacent vibration damping particles 23 collide, and the vibration damping particles 23 collide with the elastic vibration damping unit 22 to reduce vibration. This effectively reduces the vibration of the connecting pipe 4 without altering its structure, thereby reducing vibration noise and pipe stress, preventing pipe breakage due to vibration, and improving the operational stability of the air conditioning unit. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably.

[0093] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0094] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0095] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0096] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A pipe damping device, characterized by, The pipeline vibration damping device includes: Damping bracket (1), the damping bracket (1) is installed on the base plate of the air conditioning unit; Two damping shock absorbers (2) are used together to form a pipe mounting cavity (201) through which the connecting pipe (4) passes; The damping shock absorber (2) includes: A vibration damping housing (21) is connected to the damping bracket (1), wherein a vibration damping cavity is provided inside the vibration damping housing (21); An elastic damping unit (22) is located in the damping cavity; Vibration damping particles (23) are filled in the vibration damping cavity. When the connecting pipe (4) vibrates, two vibration damping particles (23) at adjacent positions collide, and the vibration damping particles (23) collide with the elastic vibration damping unit (22) to reduce vibration.

2. The plumbing vibration damping device of claim 1, wherein The elastic damping unit (22) divides the damping cavity into a first damping cavity (2101) and a second damping cavity (2102). The first damping cavity (2101) and the second damping cavity (2102) are distributed at intervals along the axial direction of the pipeline installation cavity (201) and are respectively filled with the damping particles (23).

3. The plumbing vibration damping device of claim 2, wherein The elastic damping unit (22) includes an elastic damping block (221), which is in contact with or fixed to the inner wall of the damping housing (21).

4. The plumbing vibration damping device of claim 1, wherein The vibration damping particles (23) include at least one of the following: multi-element alloy particles and multi-element non-metallic particles.

5. The plumbing vibration damping device of claim 4, wherein The multi-element alloy particles include at least one of the following: iron-based alloy particles, magnesium alloy particles, and copper alloy particles.

6. The plumbing vibration damping device of claim 4, wherein The multi-element non-metallic particles include at least one of the following: glass particles, oxide ceramic particles, carbide ceramic particles, and glass ceramic particles.

7. The plumbing vibration damping device of claim 1, wherein The filling rate of the damping particles (23) in the damping cavity is between 70% and 95%.

8. The pipeline vibration damping device according to claim 1, characterized in that, The two damping shock absorbers (2) are respectively provided with mounting ears (3) along the radial direction of the pipeline mounting cavity (201), wherein the two damping shock absorbers (2) are fixed by the mounting ears (3).

9. The plumbing vibration damping device of claim 1, wherein The elastic damping unit (22) includes: The first baffle (222) is slidably connected to the vibration damping housing (21); The elastic element (225) is fixed on the vibration damping housing (21) and located on the end face of the first baffle (222) away from the vibration damping particle (23). When the connecting pipe (4) vibrates, the two vibration damping particles (23) at adjacent positions collide and collide with the first baffle (222) to compress the elastic element (225) and reduce vibration.

10. The plumbing vibration damping device of claim 2, wherein, The elastic damping unit (22) includes: The first baffle (222) is slidably connected to the vibration damping housing (21) and is disposed in the first vibration damping cavity (2101); The second baffle (223) is slidably connected to the vibration damping housing (21) and is disposed in the second vibration damping cavity (2102), wherein the first baffle (222) and the second baffle (223) cooperate to form a buffer cavity; A damping plate (224) is located in the buffer cavity and is fixedly connected to the damping housing (21); At least two elastic elements (225) are fixed to the damping plate (224), and at least one elastic element (225) is in contact with or fixed to the first baffle (222), and at least one elastic element (225) is in contact with or fixed to the second baffle (223). When the connecting pipe (4) vibrates, the damping particles (23) located in the first damping cavity (2101) collide with the first baffle (222) to compress the elastic element (225) and reduce vibration. The damping particles (23) located in the second damping cavity (2102) collide with the second baffle (223) to compress the elastic element (225) and reduce vibration.

11. An air conditioning unit characterized by, The air conditioning unit includes a pipe vibration damping device and a connecting pipe (4) as described in any one of claims 1-10, wherein the connecting pipe (4) passes through the pipe mounting cavity (201).

12. The air conditioning unit of claim 11, wherein, When the number of the pipeline vibration damping device is set to one, the pipeline vibration damping device is located in the area of ​​the maximum operating vibration of the connecting pipeline (4); When at least two of the pipeline vibration damping devices are provided, at least two of the pipeline vibration damping devices are distributed at intervals along the length direction of the connecting pipeline (4).

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