CN218669962U - Fan vibration damper and air conditioning unit - Google Patents

Abstract

The application discloses fan vibration damper and air conditioning unit. The fan vibration damping device comprises a shell and a vibration damping assembly, the vibration damping assembly is arranged in the shell, the vibration damping assembly comprises a vibration damping cavity, a connecting rod, a piston piece and a damping piece, the connecting rod is configured to be connected with the fan assembly, the piston piece comprises a piston rod and a first piston and a second piston which are respectively arranged at two ends of the piston rod, the first piston, the second piston and the vibration damping cavity jointly enclose to form a hydraulic cavity, the damping piece is arranged in the hydraulic cavity and provided with a damping hole, and the first piston is connected with the connecting rod to enable the piston piece to move in the vertical direction under the driving of the connecting rod so as to drive hydraulic oil in the hydraulic cavity to flow; the vibration reduction assembly further comprises a piston limiting block, and the piston limiting block is arranged on one side of the first piston. The utility model provides a fan vibration damper forms limiting displacement to the removal of piston spare in vertical side through setting up the piston stopper, prevents that the fan from taking place big displacement, improves the operational reliability of fan.

Description

Fan vibration damper and air conditioning unit

Technical Field

The application relates to the technical field of refrigeration, in particular to a fan vibration damping device and an air conditioning unit.

Background

The fan is one of the main vibration sources of the air conditioning unit, and the vibration of the fan may cause the resonance of the air conditioning unit, thereby causing a noise problem. Therefore, when the fan is installed, a damping device is installed between the fan and the installation plate to damp vibration.

But avoid the fan to appear rocking big problem of toppling even when the transportation, can demolish damping device. In addition, under the impact of a large earthquake acceleration during an earthquake, the vibration absorber plays a role, and the supported fan can shake greatly, so that the reliable operation of the fan is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a fan vibration damper and an air conditioning unit to improve the reliability of fan operation.

The application provides a fan vibration damper in the first aspect, includes:

a housing configured to connect with a fan mounting plate; and

the damping component is arranged in the shell and comprises a damping cavity, a connecting rod, a piston piece and a damping piece, the connecting rod is configured to be connected with the fan component, the piston piece comprises a piston rod and a first piston and a second piston which are respectively arranged at two ends of the piston rod, the first piston, the second piston and the damping cavity are jointly enclosed to form a hydraulic cavity, the damping piece is arranged in the hydraulic cavity and provided with a damping hole, and the first piston is connected with the connecting rod so that the piston piece can move in the vertical direction under the driving of the connecting rod to drive hydraulic oil in the hydraulic cavity to flow;

the damping assembly further comprises at least one piston limiting block, and the at least one piston limiting block is arranged on one side, far away from the piston rod, of the first piston and/or the second piston.

In some embodiments, the piston stopper material has a hardness value of 35 to 60.

In some embodiments, the piston stopper is made of rubber.

In some embodiments, the first piston has a first closed cavity, and the vibration attenuation module further includes a plurality of first damping particles disposed within the first closed cavity.

In some embodiments, the second piston has a second closed cavity, and the vibration attenuation module further includes a plurality of second damping particles disposed within the second closed cavity.

In some embodiments, the at least one piston limiting block includes a first piston limiting block disposed on one side of the first piston, the first piston limiting block has a first through hole, the connecting rod is disposed in the first through hole, and the damping assembly further includes a first damping spring disposed outside the connecting rod.

In some embodiments, the at least one piston stop includes a second piston stop disposed on a side of the second piston, the second piston stop having a second through-hole, and the damping assembly further includes a second damping spring disposed within the second through-hole.

In some embodiments, the fan damping device further comprises a rubber shell disposed between the damping cavity and the outer shell.

In some embodiments, a plurality of heat dissipation holes are formed in the wall of the rubber case.

In some embodiments, the shell comprises a cylinder body and a connecting plate arranged on the upper side of the cylinder body, the connecting plate is connected with the fan assembly, and the fan vibration reduction device further comprises a rubber layer arranged between the connecting plate and the cylinder body.

In some embodiments, a plurality of louvers are provided in the wall of the housing.

The second aspect of the application provides an air conditioning unit, including fan subassembly, fan mounting panel and a plurality of fan vibration damper, a plurality of fan vibration damper evenly set up between fan subassembly and fan mounting panel.

Based on the technical scheme provided by the application, the fan vibration damping device comprises a shell and a vibration damping assembly, wherein the shell is configured to be connected with a fan mounting plate, the vibration damping assembly is arranged in the shell and comprises a vibration damping cavity, a connecting rod, a piston piece and a damping piece, the connecting rod is configured to be connected with the fan assembly, the piston piece comprises a piston rod and a first piston and a second piston which are respectively arranged at two ends of the piston rod, the first piston, the second piston and the vibration damping cavity are jointly enclosed to form a hydraulic cavity, the damping piece is arranged in the hydraulic cavity and provided with a damping hole, and the first piston is connected with the connecting rod so that the piston piece can move along the vertical direction under the driving of the connecting rod to drive hydraulic oil in the hydraulic cavity to flow; the damping assembly further comprises at least one piston limiting block, and the at least one piston limiting block is arranged on one side, far away from the piston rod, of the first piston and/or the second piston. The utility model provides a fan vibration damper utilizes hydraulic pressure damping structure, and the friction power consumption through hydraulic oil and damping piece is in order to cut down the vibration energy, and then plays the effect of damping, and this fan vibration damper sets up the piston stopper in the upside of first piston and/or the downside of second piston moreover, and this piston stopper forms limiting displacement to the removal of piston spare in vertical side, and then prevents that the fan from taking place great displacement, improves the operational reliability of fan.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a fan assembly and a fan damping device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a fan vibration reduction device according to an embodiment of the present application.

Fig. 3 is an exploded view of the vibration damper of the blower fan shown in fig. 2.

Fig. 4 is an exploded view of the fan damping device shown in fig. 2.

Fig. 5 is a cross-sectional view of the fan damping device shown in fig. 2.

Reference numerals:

1. a fan vibration damper;

11. a housing; 111. an outer cover; 112. a barrel; 113. a rubber layer; 114. connecting plate

12. A vibration reduction assembly; 121. an upper cover; 122. a first piston stopper; 123. a first damping spring; 124. a connecting rod; 125. first damping particles; 126. a first piston member; 127. pressing the mixture into tablets; 128. an upper damping block; 129. a movable damping block; 1210. a vibration damping cavity; 1211. a lower damping block; 1212. pressing the mixture downwards; 1213. a second piston member; 1214. second dampening particles; 1215. an intermediate tray; 1216. a second damping spring; 1217. a second piston limiting block; 1218. a lower cover; 1219. a hydraulic chamber;

13. rubber shell

2. Fan assembly

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, an air conditioning unit according to an embodiment of the present disclosure includes a fan assembly 2, a fan mounting plate, and a plurality of fan vibration dampers 1. The fan vibration reduction devices 1 are uniformly arranged between the fan assembly 2 and the fan mounting plate. Specifically, the upper end of the fan vibration damper 1 is connected with the fan assembly 2, and the lower end of the fan vibration damper 1 is connected with the fan mounting plate. In this way, the vibration of the fan assembly 2 during operation is reduced by the fan vibration reduction device 1, and the vibration reduction effect is further achieved.

In order to prevent the fan assembly 2 from generating a large displacement when being subjected to a large impact and affecting the operational reliability of the fan assembly 2, the embodiment of the present application provides a fan vibration damping device 1. This fan damping device cuts down the vibration energy through setting up the damping structure to prescribe a limit to the displacement of damping structure and then prevent that the fan from taking place great displacement through setting up the locating part.

The embodiment of the application provides a fan vibration reduction device, which comprises a shell 11 and a vibration reduction assembly 12. The housing 11 is configured to connect with a fan mounting plate. The damping assembly 12 is disposed within the housing 11. And the damping assembly 12 includes a damping chamber 1210, a connecting rod 124, a piston member, and a damping member. The link 124 is configured to connect with the fan assembly 2. The piston piece comprises a piston rod and a first piston and a second piston which are respectively arranged at two ends of the piston rod. The first piston, the second piston and the vibration reduction cavity body are enclosed together to form a hydraulic cavity. The damping piece sets up in the hydraulic pressure intracavity and has the damping hole, and the first piston is connected with connecting rod 124 so that the piston piece moves along vertical direction and then drives the hydraulic oil flow in the hydraulic pressure intracavity under the drive of connecting rod 124. Wherein the damping assembly 12 further comprises at least one piston stopper. At least one piston limiting block is arranged on one side, far away from the piston rod, of the first piston and/or the second piston.

The fan vibration damper of this application embodiment utilizes hydraulic pressure damping structure, consumes energy in order to cut down the vibration energy through the friction of hydraulic oil with the damping piece, and then plays the effect of damping, and this fan vibration damper sets up the piston stopper in the upside of first piston and/or the downside of second piston moreover, and this piston stopper forms limiting displacement to the removal of piston spare in vertical side, and then prevents that the fan from taking place great displacement, improves the operational reliability of fan.

In some embodiments, the piston limiting block is made of rubber, that is to say, the piston limiting block is a rubber block, and at the moment, the piston limiting block not only can play a certain damping role, but also can utilize the characteristic that the deformation amount of the piston limiting block is smaller to form a limiting effect on the movement of the piston piece in the vertical direction. Specifically, the rubber of the piston limiting block in the embodiment of the application can be ethylene propylene diene monomer, nitrile rubber, natural rubber and the like. Preferably, the rubber is ethylene propylene diene monomer.

In some embodiments, the hardness value of the material of the piston stopper is 35-60, and the hardness value is a Shore A hardness value. The piston limiting block is made of materials within the hardness range, so that the piston limiting block has certain elasticity and the maximum allowable deformation value to play a limiting role.

The at least one piston stopper includes a first piston stopper 122 disposed at one side of the first piston and a second piston stopper 1217 disposed at one side of the second piston.

As shown in fig. 4 and 5, in one particular embodiment, the piston members include a first piston member 126 and a second piston member 1213. The first piston rod of first piston member 126 is connected to the second piston rod of second piston member 1213 to form a piston rod. First piston member 126 comprises a first piston and second piston member 1213 comprises a second piston, the edge of the first piston engaging the inner wall of damping chamber 1210 and the edge of the second piston engaging the inner cavity of damping chamber 1210 such that hydraulic chamber 1219 is formed between the first piston, the second piston and the inner wall of damping chamber 1210.

Referring to fig. 5, in some embodiments, hydraulic chamber 1219 comprises a plurality of hydraulic subchambers evenly distributed around the circumference of the piston rod, and the damping member comprises upper damping mass 128, movable damping mass 129, and lower damping mass 1211. The movable damping block 129 is arranged in the middle of the hydraulic sub-cavity, the upper damping block 128 and the lower damping block 1211 are arranged in the middle of the hydraulic sub-cavity, and the upper damping block 128 and the lower damping block 1211 are fixedly connected with the hydraulic sub-cavity.

In some embodiments, the first piston has a first closed cavity. The vibration attenuation module 12 also includes a plurality of first dampening particles 125 disposed within the first enclosed cavity. The vibration of the fan is transmitted to the first piston through the connecting rod 124, and in the process of up-and-down vibration, the first damping particles 125 are subjected to friction and inelastic collision in the first closed cavity to dissipate energy, so that the effect of effectively inhibiting the vibration of the fan in the vertical direction is achieved.

The filling rate of the first dampening particles 125 in the first closed cavity is suggested to be 80% -95%. The first damping particles 125 are in a shape of a small sphere, and have a better damping effect when the size of the first damping particles is 0.01 to 0.3 percent of the volume of the cavity.

In the embodiment shown in fig. 5, the connecting rod 124 includes a rod body and a connecting plate disposed at the bottom end of the rod body. The connecting disc is connected with the first piston, a groove is formed in the bottom surface of the connecting disc, a groove is also formed in the upper surface of the first piston, and the groove of the connecting disc and the groove of the first piston are spliced to form a first closed cavity. In other embodiments, the first closed chamber may be disposed directly within the first piston, such that the connecting rod 124 may comprise only a rod connected to the first piston.

In some embodiments, the second piston has a second closed chamber. The vibration attenuation module 12 also includes a plurality of second dampening particles 1214 disposed within the second enclosed cavity. The vibration of the fan is transmitted to the first piston and then transmitted to the second piston through the connecting rod 124, and in the process of vertical vibration, the second damping particles 1214 are subjected to friction and inelastic collision in the second closed cavity to dissipate energy, so that the effect of effectively inhibiting the vibration of the fan in the vertical direction is achieved.

The filling rate of the second dampening particles 1214 in the second closed cavity is suggested to be 80% -95%. The second damping particles 1214 are in a shape of a small sphere, and the damping effect is better when the size of the second damping particles is 0.01% -0.3% of the volume of the cavity.

Specifically in the embodiment shown in fig. 5, the damping assembly includes an intermediate disc 1215 disposed between the second piston and the second piston stopper 1217. A second closed chamber is formed between the intermediate disc 1215 and the second piston. It is of course also possible to provide no intermediate disk and to form the second closing chamber directly on the second piston.

In some embodiments, the at least one piston stopper includes a first piston stopper 122 disposed on one side of the first piston. The first piston stopper 122 has a first through hole. The connecting rod 124 is disposed in the first through hole in a penetrating manner, and the damping assembly 12 further includes a first damping spring 123 disposed on an outer side of the connecting rod 124 in a sleeved manner. Under the impact of an earthquake, the fan greatly shakes in the vertical direction, and the vertical upward displacement of the fan is limited by the first piston limiting block 122 and the first damping spring 123.

Specifically, as shown in fig. 4, the first piston stopper 122 is a cylinder and is sleeved on the connecting rod 124.

In some embodiments, the at least one piston stop block includes a second piston stop block 1217 disposed to one side of the second piston. The second piston stopper 1217 has a second through bore and the damping assembly 12 further includes a second damping spring 1216 disposed in the second through bore.

Similarly, as shown in FIG. 4, second piston stop 1217 is also cylindrical.

In some embodiments, the fan damping device further comprises a rubber housing 13 disposed between the damping cavity 1210 and the outer housing 11. The rubber shell 13 wraps the vibration reduction component 12 to reduce vibration. Meanwhile, the first damping particles 125 and the second damping particles 1214 also have horizontal friction and inelastic collision, so that energy dissipation is performed to reduce the horizontal vibration of the fan. Under the earthquake impact, the fan greatly shakes horizontally, the horizontal displacement of the fan is limited by the maximum allowable deformation value of the rubber shell 13, and the fan is prevented from colliding with the periphery and even overturning.

In some embodiments, the rubber housing 13 has a plurality of heat dissipation holes on its wall. Damping component 12 produces heat energy when the damping effect of performance, through rubber shell 13 and shell 11, utilizes the fan environment to make damping component 12 and air carry out heat convection, realizes the heat dissipation, guarantees the use reliability of this application device.

In some embodiments, a plurality of heat dissipation holes are disposed on the wall of the housing 11. Thereby improving the heat dissipation effect.

In some embodiments, the housing 11 includes a cylinder 112 and a connection plate 114 disposed on an upper side of the cylinder 112, the connection plate 114 is connected to the blower assembly 2, and the blower vibration damping device further includes a rubber layer 113 disposed between the connection plate 114 and the cylinder 112. The vertical reverse displacement thereof is restricted by the rubber layer 113. The thickness of the first piston stopper 122 in the vertical direction is 1.1 to 1.2 times the thickness of the rubber layer 113 in the vertical direction.

The structure and the operation of the fan vibration damping device 1 according to the embodiment of the present application will be described in detail with reference to fig. 2 to 5

As shown in fig. 2 and 3, the fan vibration damping device 1 includes a housing 11, a vibration damping member 12, and a rubber case 13. The damping assembly 12 is embedded in the rubber housing 13 and the whole is embedded in the housing 11.

As shown in fig. 4, the housing 11 includes a cylinder 112, an outer cover 111, a rubber layer 113, and a connection plate 114. The cylinder 112 is a hexahedron. The rubber housing 13 is also a hexahedron. The lower end of the cylinder 112 is open and the upper end surface thereof is provided with an opening. The rubber layer 113 and the connection plate 114 are sequentially stacked on the upper side of the cylinder 112. The outer cover 111 includes a cylindrical cavity matching with the opening of the upper end surface of the cylinder 112 and a disc-shaped structure disposed at the lower end of the cylindrical cavity, and the disc-shaped structure is attached to the lower side of the upper end surface of the cylinder 112. The rubber layer 113 and the connecting plate 114 are provided with through holes coaxially arranged with the inner hole of the cylindrical cavity of the outer cover 111.

Specifically, the outer cover 111 is a limit rubber block.

The rubber housing 13 is disposed within the cylinder 112. The lower end of the rubber shell 13 is closed, and the upper end of the rubber shell 13 is provided with an opening. The disk-shaped structure of the outer cover 111 is provided at the opening of the upper end of the rubber housing 13 to close the inner cavity of the rubber housing 13.

The damping assembly 12 is disposed within a rubber housing 13.

The vibration damping assembly 12 includes an upper cover 121, a vibration damping chamber 1210, a lower cover 1218, a connecting rod 124, a first piston member 126, a second piston member 1213, a middle disc 1215, a first piston stopper 122, a second piston stopper 1217, a first vibration damping spring 123, a first damping particle 125, a second damping particle 1214, a second vibration damping spring 1216, an upper pressing piece 127, an upper damping piece 128, a movable damping piece 129, a lower damping piece 1211, a lower pressing piece 1212, and a hydraulic pressure chamber 1219.

As shown in fig. 4 and 5, the upper cover 121 is disposed at an upper end of the damping cavity 1210, the lower cover 1218 is disposed at a lower end of the damping cavity 1210, and the upper cover 121, the damping cavity 1210, and the lower cover 1218 jointly enclose to form a damping inner cavity. Damping chamber 1210 is cylindrical. A connecting rod 124 is connected to the web 114 and extends toward the damping chamber. The linkage 124 thus transmits the vibration of the fan assembly 2 to the vibration dampening internal cavity. Specifically, the link 124 includes a rod body and a connection plate disposed at a bottom end of the rod body. The rod body sequentially passes through the connecting plate 114, the rubber layer 113 and the outer cover 111 to extend to the damping inner cavity. The connecting disc is connected to the first piston member 126. First piston element 126 is connected to second piston element 1213. A hydraulic chamber 1219 is formed between the first piston member 126, the second piston member 1213 and the inner wall of the damping chamber 1210. The hydraulic chamber 1219 is filled with hydraulic oil. The vibration transmission of fan subassembly 2 to connecting rod 124 and then make first piston spare 126 and second piston spare 1213 up-and-down motion, and then drive the hydraulic oil in the hydraulic pressure chamber 1219 and flow from top to bottom, be provided with the damping piece in the hydraulic pressure chamber 1219, like this at the in-process that hydraulic oil flows from top to bottom, the friction turns into heat energy and dissipation between hydraulic oil and the damping piece, and then effectively reduces the vibration of fan vertical direction, makes the fan reliable operation.

Specifically, the damping block includes an upper damping block 128, a lower damping block 1211, and a movable damping block 129 disposed at the middle portion. The upper and lower damping blocks 128, 1211 have a plurality of damping holes and the movable damping block 129 is slidably disposed on the hydraulic subchamber. Therefore, in the process of flowing up and down, hydraulic oil can be converted into heat energy through friction and dissipated when flowing through the damping holes of the damping block.

As shown in FIG. 5, the movable damping block 129 is placed in the middle of the hydraulic subchamber, and then the upper damping block 128 and the lower damping block 1211 are placed in the middle and are connected by the bolt of the upper pressing sheet 127 and the lower pressing sheet 1212.

Six hydraulic sub-cavities and pressing sheets inside the vibration reduction inner cavity and six damping blocks are circumferentially and symmetrically distributed, the number of the hydraulic sub-cavities and the pressing sheets can be set according to the vibration reduction effect requirement and the actual size of the fan vibration reduction device, and the hydraulic sub-cavities and the pressing sheets can adapt to different vibration working conditions. The suggested filling rate of the hydraulic oil in the hydraulic cavity 1219 is 70-80%, and the fluidity of the hydraulic oil is ensured.

The first damping spring 123 is sleeved on the outer side of the connecting rod 124, and the first piston limiting block 122 is sleeved on the outer side of the first damping spring 123. And the first piston stopper 122 is provided on the connecting disc of the connecting rod 124. Such that displacement of the piston member in a vertically upward direction is limited by the first piston stopper 122.

Likewise, second piston stopper 1217 is disposed on the lower side of second piston member 1213 and inside lower cover 1218. Such that displacement of the piston member in a vertically downward direction is limited by second piston stopper 1217.

The connecting rod 124 is bolted to the first piston member 126, and the first enclosed cavity between the connecting rod 124 and the first piston member 126 is filled with first damping particles 125. The first piston element 126 is bolted to the intermediate disc 1215 and the second piston element 1213, forming a closed cavity filled with first damping particles 1214. A cylinder of a connecting rod 124 of the damping component 12 penetrates into a hole position of the first piston limiting block 122 and is fixedly connected through a boss; the second piston stopper 1217 of the damping module 12 abuts against the intermediate plate 1215 to be fixedly connected thereto via a boss, thereby forming the damping module 12.

Further, the vibration of the fan is transmitted to the first piston 126 and the second piston 1213 through the connecting plate 114, and during the up-and-down vibration process, the first damping particles 125 and the second damping particles 1214 generate friction and inelastic collision in the respective cavities to dissipate energy, so as to achieve the effect of effectively suppressing the vertical vibration of the fan.

Further, the filling rate of the first damping particles 125 and the second damping particles 1214 in the respective cavities is suggested to be 80% -95%, the particle damping is in a pellet shape, and the damping effect is better when the size of the particle damping is 0.01% -0.3% of the volume of the cavity.

As shown in fig. 4, in the vertical direction of the damping assembly 12, the outer cover 111, the rubber layer 113, the first piston stopper 122, the second piston stopper 1217, the first damping spring 123 and the second damping spring 1216 can not only exert a certain damping effect, but also limit the vertical displacement of the fan by integrating the maximum allowable deformation values. Under the impact of an earthquake, the fan vertically shakes greatly, and the vertical upward displacement of the fan is limited by the first piston limiting block 122 and the first vibration reduction spring 123; its vertical downward displacement is restricted by the rubber layer 113. The thickness of the first piston stopper 122 is 1.1-1.2 times of the rubber layer 113.

As shown in fig. 4, in the horizontal radial direction of the vibration damping assembly 12, the horizontal vibration of the fan is transmitted to the vibration damping assembly 12, and the vibration damping assembly 12 is wrapped by the honeycomb-hole-shaped rubber shell 13 to reduce the vibration. Meanwhile, the first damping particles 125 and the second damping particles 1214 also have horizontal friction and inelastic collision, so that energy dissipation is performed to reduce horizontal vibration of the fan.

Further, under the earthquake impact, the fan greatly shakes horizontally, the horizontal displacement of the fan is limited by the maximum allowable deformation value of the honeycomb-hole-shaped rubber shell 13, and the fan is prevented from colliding with the periphery and even overturning.

As shown in fig. 2, the damping assembly 12 generates heat energy when performing a damping function, and the damping assembly 12 and air perform heat convection through the honeycomb-hole-shaped rubber shell 13 and the housing 11 by using a fan environment, so that heat dissipation is realized, and the use reliability of the device is ensured.

It is worth explaining that, six are circumferentially and symmetrically distributed to the hydraulic cavity 1219 and the pressing sheet and the damping block inside the vibration damping assembly 12, the number of the pressing sheet and the damping block can be set according to the vibration damping effect requirement and the actual size of the device, and the device is suitable for different vibration working conditions. The suggested filling rate of the hydraulic oil in the hydraulic cavity 1219 is 70-80%, and the fluidity of the hydraulic oil is ensured.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the application or equivalent replacements of some of the technical features may still be made; all of which are intended to be encompassed within the scope of the claims appended hereto without departing from the spirit and scope of the present disclosure.

Claims (12)

1. A fan vibration damper, comprising:

a housing (11) configured to be connected with a fan mounting plate; and

the vibration damping assembly (12) is arranged in the shell (11), the vibration damping assembly (12) comprises a vibration damping cavity (1210), a connecting rod (124), a piston piece and a damping piece, the connecting rod (124) is configured to be connected with the fan assembly (2), the piston piece comprises a piston rod and a first piston and a second piston which are respectively arranged at two ends of the piston rod, the first piston, the second piston and the vibration damping cavity jointly enclose to form a hydraulic cavity, the damping piece is arranged in the hydraulic cavity and provided with a damping hole, and the first piston is connected with the connecting rod (124) so that the piston piece can move in the vertical direction under the driving of the connecting rod (124) to drive hydraulic oil in the hydraulic cavity to flow;

wherein the damping assembly (12) further comprises at least one piston stop block (122, 1217), the at least one piston stop block (122, 1217) being arranged on a side of the first piston and/or the second piston remote from the piston rod.

2. The fan vibration damper according to claim 1, wherein the piston stopper is made of a material having a hardness value of 35-60.

3. The fan vibration damper according to claim 1, wherein the piston stopper is made of rubber.

4. The fan vibration reduction device according to claim 1, wherein the first piston has a first enclosed cavity, the vibration reduction assembly (12) further comprising a plurality of first damping particles (125) disposed within the first enclosed cavity.

5. The fan vibration reduction device according to claim 1, wherein the second piston has a second enclosed cavity, the vibration reduction assembly (12) further comprising a plurality of second damping particles (1214) disposed within the second enclosed cavity.

6. The fan vibration damper according to claim 1, wherein the at least one piston limiting block comprises a first piston limiting block (122) disposed on one side of the first piston, the first piston limiting block (122) has a first through hole, the connecting rod (124) penetrates through the first through hole, and the vibration damper assembly (12) further comprises a first vibration damper spring (123) sleeved outside the connecting rod (124).

7. The fan damping device according to claim 1, wherein the at least one piston stopper comprises a second piston stopper (1217) disposed on a side of the second piston, the second piston stopper (1217) having a second through hole, and the damping assembly (12) further comprises a second damping spring (1216) disposed in the second through hole.

8. The fan damping device according to claim 1, characterized in that it further comprises a rubber shell (13) arranged between the damping cavity (1210) and the outer shell (11).

9. The fan vibration damper according to claim 8, characterized in that the rubber housing (13) has a plurality of heat dissipation holes on its wall.

10. The fan vibration reduction device according to claim 1, wherein the housing (11) comprises a cylinder (112) and a connecting plate (114) arranged on the upper side of the cylinder (112), the connecting plate (114) is connected with the fan assembly (2), and the fan vibration reduction device further comprises a rubber layer (113) arranged between the connecting plate (114) and the cylinder (112).

11. The fan vibration damper according to claim 1, characterized in that a plurality of heat dissipation holes are provided on the wall of the housing (11).

12. Air conditioning unit, characterized in that it comprises a fan assembly (2), a fan mounting plate and a plurality of fan damping devices (1) according to any one of claims 1 to 11, said plurality of fan damping devices (1) being arranged uniformly between said fan assembly (2) and said fan mounting plate.

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