CN112460077A - Vibration damper, fan and air conditioner - Google Patents
Vibration damper, fan and air conditioner Download PDFInfo
- Publication number
- CN112460077A CN112460077A CN202011392230.9A CN202011392230A CN112460077A CN 112460077 A CN112460077 A CN 112460077A CN 202011392230 A CN202011392230 A CN 202011392230A CN 112460077 A CN112460077 A CN 112460077A
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- rubber block
- spring
- vibration
- damping device
- hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration damper, a fan and an air conditioner, relates to the technical field of air conditioners and solves the technical problem that noise generated by vibration when a motor operates in the prior art is large. The damping device comprises a spring assembly and a rubber block assembly, wherein the spring assembly comprises at least two springs which are sleeved with each other, and the at least two springs are also sleeved outside the rubber block assembly and positioned between two ends of the rubber block assembly; the rubber block assembly is fixed on the equipment to be damped, and vibration generated by the equipment to be damped is transmitted to the other end of the rubber block assembly after being transmitted to the at least two springs through one end of the rubber block assembly. The vibration damping device is combined with the rubber block assembly through the double springs, so that the vibration value generated when the equipment to be damped runs can be effectively reduced, and the noise generated by the vibration of the equipment to be damped can be reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a vibration damper, a fan comprising the vibration damper and an air conditioner comprising the fan.
Background
Along with the improvement of life quality of people, the noise problem is more sensitive, how to effectively reduce the noise of the air conditioner becomes a key problem of the air conditioner industry, and the fan is one of the largest noise sources of the air conditioner, so that the reduction of the noise of the fan is more important. The fan noise is mainly generated by the vibration of the motor during operation, and if the vibration frequency of the motor is close to the natural frequency of the unit, the noise of the unit can be greatly improved. Therefore, reducing the vibration value of the motor is one of the methods for effectively solving the noise of the air conditioner.
The patent with publication number CN203599057U discloses a vibration-damping device with double springs for a vibrating screen, which is characterized in that an inner spring is sleeved into an outer spring, the inner spring and the outer spring are fixed by a positioning block on a spring seat, and the resonance amplitude is effectively reduced by the deformation energy storage of the inner spring and the outer spring. The patent with publication number CN208417370U discloses a dual-spring shock absorber, which is composed of a piston rod, a first spring, a spring separation ring, a second spring and other components which are vertically installed, and is fixed by using an annular clamping groove and a positioning ring which are arranged at the bottom of a shock absorption top rubber at the top of the piston rod, and the shock absorber absorbs the vibration of tires and a vehicle body, thereby improving the stability of the vehicle body. Although the double-spring vibration damper disclosed in the above patent can effectively reduce vibration, it is used in equipment capable of performing vertical motion, such as a vibrating screen or a vehicle, however, because the motor of the fan blade on the air conditioner needs to be fixed at a position with unchanged height, that is, the vertical motion of the motor is limited, the motor cannot use the double-spring vibration damper.
The patent with publication number CN210686806U discloses a shock absorber, a shock absorbing structure and a shock absorbing assembly, wherein the shock absorber adopts a shock absorber with a composite structure formed by matching an elastic body and an elastic piece, the elastic piece is sleeved on a column body and is sunk in a groove, the radial rigidity of the elastic body is reduced by the groove, and the axial vibration isolation effect of the shock absorber is improved by means of the characteristic of low natural frequency and bearing deformability of the elastic piece. Although the vibration damper disclosed in the patent can be used for equipment with limited vertical movement, such as a compressor, the vibration damper only has one elastic part for damping vibration, and when the vibration damper is used for damping vibration of an air conditioner fan, the vibration damping effect is limited.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a vibration damping device with good vibration damping effect for an air conditioner fan.
Disclosure of Invention
One of the purposes of the invention is to provide a vibration damping device, a fan and an air conditioner, which solve the technical problem of large noise generated by vibration when a motor runs in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the damping device comprises a spring assembly and a rubber block assembly, wherein the spring assembly comprises at least two springs which are sleeved with each other, and the at least two springs are also sleeved outside the rubber block assembly and positioned between two ends of the rubber block assembly; the rubber block assembly is fixed on the equipment to be damped, and vibration generated by the equipment to be damped is transmitted to at least two springs through one end of the rubber block assembly and then transmitted to the other end of the rubber block assembly.
According to a preferred embodiment, the spring assembly comprises a first spring and a second spring, the rubber block assembly comprises a first rubber block and a second rubber block, wherein the second spring is sleeved in the first spring, the first spring is further sleeved outside the first rubber block, the second spring is further sleeved outside the second rubber block, and the first spring and the second spring are located between the first rubber block and the second rubber block.
According to a preferred embodiment, the second spring has a smaller spring diameter than the first spring, and the first and second springs are wound in opposite directions.
According to a preferred embodiment, the length of the second spring is smaller than the length of the first spring, and the modulus of elasticity of the first spring is smaller than the modulus of elasticity of the second spring.
According to a preferred embodiment, the first rubber block is of a T-shaped structure, the second rubber block is of an inverted T-shaped structure, the vertical parts of the first rubber block and the second rubber block are butted with each other to form an I-shaped structure, and the first spring is located between the end faces of the transverse parts of the first rubber block and the second rubber block.
According to a preferred embodiment, the diameter of the second rubber block vertical portion is smaller than the diameter of the first rubber block vertical portion, and the second spring is located between the end surface of the lateral portion of the second rubber block and the end surface of the vertical portion of the first rubber block.
According to a preferred embodiment, the first rubber block is provided with a first mounting through hole, the second rubber block is provided with a second mounting through hole, the first mounting through hole and the second mounting through hole respectively penetrate through the first rubber block and the second rubber block, and the first rubber block and the second rubber block are fixed on equipment to be damped through fixing pieces mounted in the first mounting through hole and the second mounting through hole.
According to a preferred embodiment, when the first rubber block and the second rubber block are fixed on the equipment to be damped, the first mounting through hole and the second mounting through hole are in butt joint communication with each other, and center lines of the first mounting through hole and the second mounting through hole are overlapped with each other.
The fan comprises a motor, a motor mounting bracket and the vibration damping device in any technical scheme, wherein the vibration damping device is fixed between the motor and the motor mounting bracket through a fixing piece.
The air conditioner comprises the fan in any technical scheme of the invention.
The vibration damper, the fan and the air conditioner provided by the invention at least have the following beneficial technical effects:
the damping device comprises a spring assembly and a rubber block assembly, wherein the spring assembly comprises at least two springs which are sleeved with each other, and the at least two springs are also sleeved outside the rubber block assembly and positioned between two ends of the rubber block assembly; the rubber block assembly is fixed on the equipment to be damped, and vibration generated by the equipment to be damped is transmitted to at least two springs through one end of the rubber block assembly and then transmitted to the other end of the rubber block assembly, namely the vibration damping device can limit vertical movement of the equipment to be damped through the supporting effect of the rubber block assembly on one hand, so that the vibration damping device can be used for the equipment to be damped with limited vertical movement, such as a motor, a compressor and the like; on the other hand, vibration generated by the equipment to be damped is transmitted to the at least two springs through one end of the rubber block assembly and then transmitted to the other end of the rubber block assembly, and through the damping performance of the rubber block assembly and the at least two springs, the vibration value generated when the equipment to be damped runs can be effectively reduced, so that the noise generated by vibration of the equipment to be damped can be reduced. The vibration damping device formed by the spring assembly and the rubber block assembly can solve the technical problem of high noise generated by vibration when the motor runs in the prior art.
According to the fan, the vibration damping device of any technical scheme is arranged between the motor and the motor mounting bracket, and the vibration value generated during the operation of the motor can be effectively reduced through the vibration damping device, so that the noise generated by the vibration of the fan can be reduced. The fan solves the technical problem that noise generated by vibration when a motor operates in the prior art is large.
Compared with the air conditioner in the prior art, the air conditioner provided by the invention comprises the fan in any technical scheme, the noise is reduced, and the comfort of a user can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a preferred embodiment of the vibration damping device of the present invention;
FIG. 2 is a cross-sectional view of a preferred embodiment of the vibration damping device of the present invention;
FIG. 3 is a schematic view of the mounting position of a preferred embodiment of the vibration damping device of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure: 10. a vibration damping device; 101. a first spring; 102. a second spring; 103. a first rubber block; 1031. a first mounting through hole; 104. a second rubber block; 1041. a second mounting through hole; 20. a motor; 30. a motor mounting bracket; 40. and a fixing member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The vibration damping device, the fan and the air conditioner of the present invention will be described in detail with reference to the accompanying drawings 1 to 4 and embodiments 1 to 3 of the specification.
Example 1
The vibration damping device 10 of the present embodiment includes a spring assembly and a rubber block assembly. Preferably, the spring assembly comprises at least two springs which are sleeved with each other, and the at least two springs are further sleeved outside the rubber block assembly and positioned between two ends of the rubber block assembly; the rubber block assembly is fixed on the equipment to be damped, and vibration generated by the equipment to be damped is transmitted to the other end of the rubber block assembly after being transmitted to the at least two springs through one end of the rubber block assembly.
On one hand, the vibration damping device 10 of the embodiment can limit the vertical movement of the equipment to be damped through the supporting action of the rubber block assembly, so that the vibration damping device 10 of the embodiment can be used for the equipment to be damped with limited vertical movement, such as a motor, a compressor and the like; on the other hand, vibration generated by the equipment to be damped is transmitted to the at least two springs through one end of the rubber block assembly and then transmitted to the other end of the rubber block assembly, and through the damping performance of the rubber block assembly and the at least two springs, the vibration value generated when the equipment to be damped runs can be effectively reduced, so that the noise generated by vibration of the equipment to be damped can be reduced. That is, the vibration damping device 10 formed by the spring assembly and the rubber block assembly in the present embodiment can solve the technical problem of large noise generated by vibration during the operation of the motor in the prior art.
According to a preferred embodiment, the spring assembly comprises a first spring 101 and a second spring 102, and the rubber block assembly comprises a first rubber block 103 and a second rubber block 104, as shown in fig. 1-4. Preferably, the second spring 102 is sleeved in the first spring 101, the first spring 101 is further sleeved outside the first rubber block 103, the second spring 102 is further sleeved outside the second rubber block 104, and the first spring 101 and the second spring 102 are located between the first rubber block 103 and the second rubber block 104, as shown in fig. 2 to 4.
Preferably, the first spring 101 and the second spring 102 are made of a composite spring material. More preferably, the composite spring is made of a composite material in the prior art, and the description thereof is omitted. The composite spring integrates the advantages of metal spring shrinkage deformation energy storage and rubber spring such as stable mechanical performance, long service life and low cost, can overcome the defects of the metal spring shrinkage deformation energy storage and the rubber spring, has stable shape and mechanical performance, can bear heavy load and large deformation, and has the advantages of good vibration isolation and noise reduction effects, stable work, short time of passing a resonance area and the like.
Preferably, the first rubber block 103 and the second rubber block 104 are both made of composite materials, and the required hardness can be controlled by adjusting the rubber formula so as to meet the requirements of rigidity and strength in different directions. More preferably, the formulation of the composite material and the desired hardness is known in the art and will not be described further herein. Compared with steel and iron materials and the like, the rubber block used as a structural member has the characteristics of high elasticity and the like, has large elastic deformation and small elastic modulus, has impact rigidity larger than dynamic rigidity and dynamic rigidity larger than static rigidity, is favorable for reducing the characteristics of impact deformation and dynamic deformation, and has good vibration damping effect.
The damping device 10 of the preferred technical scheme of this embodiment has certain damping performance through the combination of double spring and rubber block subassembly, collects the two advantage in an organic whole, can absorb mechanical energy when receiving load, has good elasticity and sufficient intensity, can effectively reduce the vibration value of waiting to damp equipment through the deformation energy storage of rubber block subassembly energy dissipation and spring to can reduce the noise that waits to damp equipment vibration production.
According to a preferred embodiment, the spring diameter of the second spring 102 is smaller than the spring diameter of the first spring 101, and the helical directions of the first spring 101 and the second spring 102 are opposite. In the preferred technical scheme of this embodiment, the spring diameter of the second spring 102 is smaller than that of the first spring 101, so that the second spring 102 can be sleeved in the first spring 101. On the other hand, if the spiral directions of the first spring 101 and the second spring 102 are the same, the second spring 102 may be embedded into the first spring 101, and the spiral directions of the first spring 101 and the second spring 102 in the preferred embodiment are opposite, so that the problem of vibration reduction failure caused by embedding the second spring 102 into the first spring 101 can be avoided.
According to a preferred embodiment, the length of the second spring 102 is smaller than the length of the first spring 101, and the elastic modulus of the first spring 101 is smaller than the elastic modulus of the second spring 102. The first spring 101 of the preferred technical solution of this embodiment can be called a supporting spring, and the first spring 101 is an auxiliary damping and simultaneously plays a supporting role; the second spring 102 may be called a damping spring, and has a large elastic modulus and a high stiffness. In the preferred technical solution of this embodiment, the propagation direction of the vibration damping device 10 is: the vibration generated by the device to be damped is transmitted to the second rubber block 104, then transmitted to the first spring 101 and the second spring 102 by the second rubber block 104, and then transmitted to the first rubber block 103 by the first spring 101 and the second spring 102. In the preferred technical solution of this embodiment, the length of the second spring 102 is smaller than the length of the first spring 101, and the elastic modulus of the first spring 101 is smaller than the elastic modulus of the second spring 102, so that the first spring 101 and the second spring 102 can transmit vibration to the first rubber block 103 at the same time, and the first spring 101 and the second spring 102 can play a role in damping vibration at the same time, thereby avoiding a time difference between the functions of the first spring 101 and the second spring 102.
According to a preferred embodiment, the first rubber block 103 is in a T-shaped structure, the second rubber block 104 is in an inverted T-shaped structure, the vertical parts of the first rubber block 103 and the second rubber block 104 are butted with each other to form an I-shaped structure, and the first spring 101 is positioned between the end surfaces of the transverse parts of the first rubber block 103 and the second rubber block 104, as shown in FIGS. 1-4. The first spring 101 of the preferred technical scheme of this embodiment is located between the first rubber block 103 and the second rubber block 104, so that after the vibration generated by the device to be damped is transmitted to the second rubber block 104, the vibration can be transmitted to the first spring 101 by the second rubber block 104, and then transmitted to the first rubber block 103 by the first spring 101.
According to a preferred embodiment, the diameter of the vertical portion of the second rubber block 104 is smaller than the diameter of the vertical portion of the first rubber block 103, and the second spring 102 is located between the end surface of the lateral portion of the second rubber block 104 and the end surface of the vertical portion of the first rubber block 103, as shown in fig. 2 to 4. In the preferred technical scheme of this embodiment, the diameter of the vertical portion of the second rubber block 104 is smaller than the diameter of the vertical portion of the first rubber block 103, that is, a step structure is formed at the joint of the first rubber block 103 and the second rubber block 104, so that the second spring 102 can be positioned between the end surface of the horizontal portion of the second rubber block 104 and the end surface of the vertical portion of the first rubber block 103, and after the vibration generated by the device to be damped is transmitted to the second rubber block 104, the vibration can be transmitted to the second spring 102 by the second rubber block 104 and then transmitted to the first rubber block 103 by the second spring 102; meanwhile, the first spring 101 can be sleeved outside the first rubber block 103 and the second spring 102 at the same time.
According to a preferred embodiment, the first rubber block 103 has a first mounting through hole 1031 and the second rubber block 104 has a second mounting through hole 1041, as shown in fig. 2 to 4. Preferably, the first mounting through hole 1031 and the second mounting through hole 1041 penetrate through the first rubber block 103 and the second rubber block 104, respectively, and the first rubber block 103 and the second rubber block 104 are fixed on the device to be damped by the fixing member 40 installed in the first mounting through hole 1031 and the second mounting through hole 1041, as shown in fig. 2 to 4. The fixing member 40 is, for example, a fastening bolt. The vibration damping device 10 of the preferred technical scheme of this embodiment is fixed on the device to be damped by the fastening bolts installed in the first installation through hole 1031 and the second installation through hole 1041 penetrating through the first rubber block 103 and the second rubber block 104, and has the advantages of simple and convenient installation and firm fixation.
According to a preferred embodiment, when the first rubber block 103 and the second rubber block 104 are fixed to the device to be damped, the first mounting through hole 1031 and the second mounting through hole 1041 are in butt communication with each other and the center lines of the first mounting through hole 1031 and the second mounting through hole 1041 coincide with each other. In the preferred technical scheme of this embodiment, the first mounting through hole 1031 and the second mounting through hole 1041 are in butt joint communication with each other and the center lines of the first mounting through hole 1031 and the second mounting through hole 1041 are overlapped with each other, which not only enhances the mounting stability of the vibration damping device 10, but also avoids the problem that the vibration damping effect is affected by the deviation between the first spring 101 and the second spring 102 and between the first rubber block 103 and the second rubber block 104.
According to a preferred embodiment, the device to be damped is a fan or a compressor. The damping device 10 of the embodiment is suitable for parts which need damping, but are fixed in installation position and limited in vertical movement, such as a fan or a compressor; not limited to this, the remaining devices satisfying the condition may also be possible.
Without being limited thereto, the spring assembly of the present embodiment may further include three or more springs. Accordingly, three or more springs are fitted to each other, and a plurality of bosses are provided on the second rubber block 104 to restrict the movement of the ends of the springs, so that the springs can be fixed between the first rubber block 103 and the second rubber block 104. The preferred technical scheme of this embodiment can further strengthen the damping effect through three or more than three springs.
Example 2
The fan of the present embodiment includes a motor 20, a motor mounting bracket 30, and the vibration damping device 10 according to any one of the technical solutions of embodiment 1, as shown in fig. 3 or 4. Preferably, the vibration damping device 10 is secured between the motor 20 and the motor mounting bracket 30 by fasteners 40, as shown in fig. 3 or 4.
In the blower of this embodiment, the vibration damping device 10 according to any one of the technical solutions of embodiment 1 is installed between the motor 20 and the motor mounting bracket 30, and the vibration value generated when the motor 20 operates can be effectively reduced by the vibration damping device 10, so that the noise generated by the vibration of the blower can be reduced. The fan of this embodiment has solved the vibration frequency of motor 20 among the prior art and has close with unit natural frequency, leads to the great technical problem of noise that the fan vibration produced.
Example 3
The air conditioner of this embodiment includes the fan of any one of the technical solutions in embodiment 2. The air conditioner of this embodiment, including the fan of any technical scheme in embodiment 2, compare the air conditioner among the prior art, the noise reduces, can improve the travelling comfort that the user used.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392230.9A CN112460077A (en) | 2020-12-02 | 2020-12-02 | Vibration damper, fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392230.9A CN112460077A (en) | 2020-12-02 | 2020-12-02 | Vibration damper, fan and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN112460077A true CN112460077A (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011392230.9A Pending CN112460077A (en) | 2020-12-02 | 2020-12-02 | Vibration damper, fan and air conditioner |
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| Country | Link |
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| CN (1) | CN112460077A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750675A (en) * | 2022-09-14 | 2023-03-07 | 中机试验装备(江苏)有限公司 | Large-tonnage hydraulic damping mechanism |
| CN119519239A (en) * | 2025-01-22 | 2025-02-25 | 杭州途搏能源科技有限公司 | A multi-stage shock absorbing device and motor mounting structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317356Y (en) * | 1998-03-16 | 1999-05-05 | 梁荣 | Compound vibration-damper |
| CN2746509Y (en) * | 2004-11-07 | 2005-12-14 | 浙江日升电器有限公司 | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker |
| CN204356814U (en) * | 2013-12-25 | 2015-05-27 | 汤广武 | A kind of damping device of building |
| CN214698507U (en) * | 2020-12-02 | 2021-11-12 | 珠海格力电器股份有限公司 | Vibration damper, fan and air conditioner |
-
2020
- 2020-12-02 CN CN202011392230.9A patent/CN112460077A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317356Y (en) * | 1998-03-16 | 1999-05-05 | 梁荣 | Compound vibration-damper |
| CN2746509Y (en) * | 2004-11-07 | 2005-12-14 | 浙江日升电器有限公司 | Overtravel spring combiner for outdoor AC high-voltage vacuum circuit breaker |
| CN204356814U (en) * | 2013-12-25 | 2015-05-27 | 汤广武 | A kind of damping device of building |
| CN214698507U (en) * | 2020-12-02 | 2021-11-12 | 珠海格力电器股份有限公司 | Vibration damper, fan and air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750675A (en) * | 2022-09-14 | 2023-03-07 | 中机试验装备(江苏)有限公司 | Large-tonnage hydraulic damping mechanism |
| CN119519239A (en) * | 2025-01-22 | 2025-02-25 | 杭州途搏能源科技有限公司 | A multi-stage shock absorbing device and motor mounting structure |
| CN119519239B (en) * | 2025-01-22 | 2025-07-25 | 杭州途搏能源科技有限公司 | Multistage damping device and motor mounting structure |
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Application publication date: 20210309 |
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