Damping structure of small fan
By installing limiting tubes and elastic damping components at the connection point between the fan bracket and the air conditioner frame, the problem of fan vibration transmission to the equipment was solved, achieving the effect of reducing vibration transmission and improving equipment stability.
Patent Information
- Application Number
- CN202520002137.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Vibration from the fans in industrial air conditioners can be transmitted to the processing equipment through the fan brackets and air conditioning frames, resulting in a decrease in the processing accuracy of the equipment.
Limiting tubes and elastic damping components are installed at the connection points between the fan bracket and the fan and between the fan bracket and the air conditioner frame. The limiting tubes pass through the fan bracket, and the elastic damping components are sleeved on the outside of the limiting tubes. They absorb vibrations through elastic deformation, and the degree of deformation is limited by the limiting tubes.
It effectively reduces the transmission of vibration, improves the processing accuracy and stability of the equipment, and prevents the elastic damping components from losing their damping effect due to excessive deformation.
Smart Images
Figure CN223923405U_ABST
Abstract
Description
Technical Field
[0001] This disclosure generally relates to the field of industrial air conditioning technology, and specifically to a vibration damping structure for a small fan. Background Technology
[0002] With the rapid development of global industrial automation and intelligent manufacturing technologies, various high-precision and high-efficiency processing equipment has been widely used in the manufacturing industry. During the operation of this equipment, ambient temperature is a critical factor that cannot be ignored. Excessively high temperatures can affect the normal operation of the equipment, so precise temperature control of its operating environment is essential.
[0003] Industrial air conditioners, as efficient and stable temperature control devices, are gradually becoming the mainstream choice in the field of equipment temperature control. Industrial air conditioners typically include a fan, a fan bracket for fixing the fan, and an air conditioning frame. Since the vibration of the fan during operation is transmitted to the processing equipment through the fan bracket and air conditioning frame, excessive vibration will reduce the processing accuracy of the processing equipment. Therefore, it is necessary to reduce the vibration of the industrial air conditioner during operation. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a small wind turbine vibration damping structure to solve the above problems.
[0005] This application provides a small fan vibration damping structure, installed at the connection position between the fan bracket and the fan, and at the connection position between the fan bracket and the air conditioner frame. The vibration damping structure includes:
[0006] A limiting tube, which penetrates the fan bracket, has a through-hole that passes through both ends of the limiting tube, and the through-hole is for screws to pass through;
[0007] An elastic damping component is sleeved outside the limiting tube, and the elastic damping component is spaced between the limiting tube and the fan bracket.
[0008] According to the technical solution provided in the embodiments of this application, one end of the limiting tube near the fan or the air conditioner frame forms an installation end, and the other end of the limiting tube forms a fixing end for engaging with the nut of the screw.
[0009] According to the technical solution provided in the embodiments of this application, the elastic damping component includes:
[0010] A first elastic element is sleeved outside the limiting tube. A limiting portion is formed at one end of the first elastic element near the mounting end. The radial dimension of the limiting portion is larger than the radial dimension of the other end of the first elastic element.
[0011] A second elastic element is sleeved on the end of the first elastic element away from the limiting part, and a mounting part for engaging the fan bracket is formed between the second elastic element and the limiting part.
[0012] According to the technical solution provided in the embodiments of this application, when the shock-absorbing structure is installed at the connection position between the fan bracket and the fan, the end of the limiting part is flush with the mounting end; when the shock-absorbing structure is installed at the connection position between the fan bracket and the air conditioner frame, the end of the limiting part protrudes outward relative to the mounting end.
[0013] According to the technical solution provided in the embodiments of this application, the radial dimension of the second elastic member is the same as the radial dimension of the limiting part, and the second elastic member is in clearance fit with the fan bracket.
[0014] According to the technical solution provided in the embodiments of this application, the inner diameter of the through portion is larger than the outer diameter of the screw shaft, and there is a gap between the inner wall of the through portion and the outer wall of the screw shaft.
[0015] According to the technical solution provided in the embodiments of this application, the limiting tube is a stainless steel tube, and the first elastic element and the second elastic element are made of polyurethane material.
[0016] Compared with the prior art, the beneficial effects of this application are as follows: by setting limiting tubes and elastic damping components at the connection positions between the fan bracket and the fan, and at the connection positions between the fan bracket and the air conditioner frame, the limiting tubes and elastic damping components separate the screws connecting the fan or air conditioner frame from the fan bracket. The elastic damping components absorb vibration by generating elastic deformation, thereby reducing vibration transmission. The limiting tubes can limit the degree of deformation of the elastic damping components, preventing the elastic damping components from losing their damping effect due to excessive deformation. Attached Figure Description
[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0018] Figure 1 A schematic diagram of the vibration damping structure for the small wind turbine provided in this application:
[0019] Figure 2 for Figure 1 A cross-sectional view of the vibration damping structure of the small fan shown.
[0020] Figure 3 for Figure 1 The diagram shows the installation of a small fan vibration damping structure at the fan bracket and fan connection point.
[0021] Figure 4 for Figure 3A cross-sectional view of the structure shown;
[0022] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;
[0023] Figure 6 for Figure 1 The diagram shows the installation of the small fan vibration damping structure at the connection point between the fan bracket and the air conditioner frame.
[0024] Figure 7 for Figure 6 Enlarged view of the structure at point B.
[0025] Reference numerals: 100, fan bracket; 200, fan; 300, air conditioner frame; 400, limiting tube; 401, through part; 402, mounting end; 403, fixing end; 500, elastic shock absorber; 510, first elastic element; 511, limiting part; 520, second elastic element; 530, mounting part; 600, gasket. Detailed Implementation
[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] Please refer to Figures 1-7 This application provides a small fan vibration damping structure, installed at the connection position between the fan bracket 100 and the fan 200, and at the connection position between the fan bracket 100 and the air conditioner frame 300. The vibration damping structure includes:
[0029] A limiting tube 400 passes through the fan bracket 100. The limiting tube 400 is provided with a through portion 401 that passes through both ends of the limiting tube 400. The through portion 401 is used for screws to pass through.
[0030] An elastic damping component 500 is sleeved outside the limiting tube 400, and the elastic damping component 500 is spaced between the limiting tube 400 and the fan bracket 100.
[0031] Specifically, when assembling an industrial air conditioner, the fan 200 and the air conditioner frame 300 need to be connected to the fan bracket 100. The connection method is to fix it with screws. The fan bracket 100 is provided with through holes for screws to pass through. The screws are passed through the fan bracket 100 from one side of the through hole to the other side of the through hole, and then connected to the fan 200 or the air conditioner frame 300 on the other side of the through hole.
[0032] Specifically, such as Figure 1 and Figure 2 As shown, the vibration damping structure provided in this application is installed in the through hole of the fan bracket 100. The vibration damping structure consists of two parts: a limiting tube 400 and an elastic damping element 500. The limiting tube 400 passes through the through hole on the fan bracket 100, and the elastic damping element 500 is sleeved on the outside of the limiting tube 400, with the elastic damping element 500 spaced between the limiting tube 400 and the fan bracket 100. When installing the fan 200 and the air conditioning frame 300 to the fan bracket 100, they are fixed to the fan 200 or the air conditioning frame 300 by screws passing through the through portion 401 on the limiting tube 400.
[0033] When the fan 200 vibrates during operation, the vibration is transmitted to the limiting tube 400 through the screw, and then absorbed by the elastic damping component 500. On the other hand, the vibration is transmitted directly to the elastic damping component 500 through the limiting tube 400, and then absorbed by the elastic damping component 500. The elastic damping component 500 isolates the limiting tube 400 and the fan support 100. The elastic deformation of the elastic damping component 500 absorbs energy to achieve the vibration reduction effect. In addition, the limiting tube 400 can also limit the degree of deformation of the elastic damping component 500 to prevent the elastic damping component 500 from deforming too much and reducing the vibration reduction effect.
[0034] Furthermore, one end of the limiting tube 400 near the fan 200 or the air conditioner frame 300 forms an installation end 402, and the other end of the limiting tube 400 forms a fixing end 403 for engaging with the nut of the screw.
[0035] Specifically, the axial length of the limiting tube 400 is greater than the thickness of the fan bracket 100. When the vibration damping structure is installed in the through hole on the fan bracket 100, under the locking action of the screw, the end of the limiting tube 400 near the fan 200 or the air conditioning frame 300 forms the mounting end 402, and the other end of the limiting tube 400 abuts against the nut of the screw to form the fixing end 403. The limiting tube 400 mainly works in close contact with the screw through the fixing end 403. When the fan 200 vibrates during operation, the limiting tube 400 isolates the screw from the fan bracket 100, and the fixing end 403 serves as the main transmission path between the screw and the limiting tube 400. Since the contact area between the fixing end 403 and the screw is small, it effectively restricts the path of vibration transmission, thereby reducing vibration transmission.
[0036] Furthermore, the elastic damping element 500 includes:
[0037] A first elastic element 510 is sleeved outside the limiting tube 400. A limiting portion 511 is formed at one end of the first elastic element 510 near the mounting end 402. The radial dimension of the limiting portion 511 is larger than the radial dimension of the other end of the first elastic element 510.
[0038] The second elastic member 520 is sleeved on the end of the first elastic member 510 away from the limiting part 511, and an installation part 530 for engaging the fan bracket 100 is formed between the second elastic member 520 and the limiting part 511.
[0039] Specifically, the elastic damping component 500 consists of two parts: a first elastic component 510 and a second elastic component 520. The first elastic component 510 and the second elastic component 520 are separate structures. The first elastic component 510 is directly sleeved on the outer wall of the limiting tube 400. The radial dimensions of the two ends of the first elastic component 510 differ, with the radial dimension of the end closer to the mounting end 402 being larger to form the limiting part 511. The second elastic component 520 is sleeved on the end of the first elastic component 510 furthest from the limiting part 511. When installing the damping structure, the first elastic component 510 is first sleeved on the outside of the limiting tube 400. Then, the first elastic component 510 and the limiting tube 400 are installed in the through hole on the fan bracket 100. Next, the second elastic component 520 is sleeved on the first elastic component 510 from the end furthest from the limiting part 511. At this point, the fan bracket 100 is secured within the mounting part 530, thus completing the installation of the damping structure. In other embodiments, the first elastic member 510 and the second elastic member 520 may also be configured as an integral structure.
[0040] Specifically, after the fan bracket 100 is installed with the fan 200 and the air conditioning frame 300, the limiting part 511 limits the fan bracket 100 and separates the fan bracket 100 from the fan 200 or the air conditioning frame 300 to avoid vibration transmission caused by a hard connection between the fan bracket 100 and the fan 200 or the air conditioning frame 300.
[0041] Furthermore, when the shock-absorbing structure is installed at the connection position between the fan bracket 100 and the fan 200, the end of the limiting part 511 is flush with the mounting end 402; when the shock-absorbing structure is installed at the connection position between the fan bracket 100 and the air conditioner frame 300, the end of the limiting part 511 protrudes outward relative to the mounting end 402.
[0042] Specifically, the structure of the vibration damping structure differs depending on its installation location. Since the fan 200 needs to be stably mounted on the fan bracket 100, the vibration damping structure will differ when installed at the connection point between the fan bracket 100 and the fan 200. Figures 3-5 As shown, the mounting end 402 abuts against the fan 200 under the tension of the screws, thereby improving the stability of the fan 200 installation. Although the mounting end 402 is in contact with the fan 200, when the vibration generated by the fan 200 is transmitted from the mounting end 402 to the limiting tube 400, the elastic damping component 500 can also absorb the vibration, reducing the vibration transmitted to the fan bracket 100. When the damping structure is installed at the connection position between the fan bracket 100 and the air conditioning frame 300, such as... Figures 6-7 As shown, under the tension of the screw, the protruding limiting part 511 abuts against the air conditioner frame 300, thereby reducing the vibration transmission between the fan bracket 100 and the air conditioner frame 300.
[0043] Furthermore, during installation using screws and a shock-absorbing structure, a washer 600 is provided between the screw nut and the first elastic element 510 and the second elastic element 520. The washer 600 has the same radial dimension as the second elastic element 520, which increases the contact area between the screw nut and the second elastic element 520, thus preventing the second elastic element 520 from falling off and causing the shock-absorbing structure to fail.
[0044] Furthermore, the radial dimension of the second elastic member 520 is the same as the radial dimension of the limiting part 511, and the second elastic member 520 is clearance-fitted with the fan bracket 100.
[0045] Specifically, the second elastic element 520 also serves to limit the position of the fan bracket 100. Through the clearance fit between the second elastic element 520 and the fan bracket 100, the stability of the fan bracket 100 is ensured when the fan 200 is working.
[0046] Furthermore, the inner diameter of the through portion 401 is larger than the outer diameter of the screw shaft, and there is a gap between the inner wall of the through portion 401 and the outer wall of the screw shaft.
[0047] Specifically, by setting the inner diameter of the through-hole 401 to be larger than the outer diameter of the screw shank, during installation, the screw does not contact the inner wall of the through-hole 401 as much as possible when passing through it. As a result, there is a gap between the through-hole 401 and the screw shank, reducing the contact area between the limiting tube 400 and the screw, thereby reducing the vibration transmission path and thus reducing vibration transmission.
[0048] Furthermore, the limiting tube 400 is a stainless steel tube, and the first elastic element 510 and the second elastic element 520 are made of polyurethane material.
[0049] Specifically, by using stainless steel for the limiting tube 400, it gains good structural strength, effectively suppressing the deformation of the first elastic element 510 and the second elastic element 520, thus preventing excessive deformation and loss of damping effect. By using polyurethane for the first elastic element 510 and the second elastic element 520, they gain both elasticity and a certain degree of support.
[0050] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A vibration damping structure for a small fan, characterized in that, The shock-absorbing structure is installed at the connection points between the fan bracket (100) and the fan (200), and at the connection points between the fan bracket (100) and the air conditioning frame (300). A limiting tube (400) is provided, which passes through the fan bracket (100). The limiting tube (400) is provided with a through part (401) that passes through both ends of the limiting tube (400). The through part (401) is used for screws to pass through. An elastic damping component (500) is sleeved outside the limiting tube (400) and the elastic damping component (500) is spaced between the limiting tube (400) and the fan bracket (100).
2. The vibration damping structure for small fans according to claim 1, characterized in that, The end of the limiting tube (400) near the fan (200) or the air conditioner frame (300) forms an installation end (402), and the other end of the limiting tube (400) forms a fixing end (403) for engaging with the nut of the screw.
3. The vibration damping structure for small fans according to claim 2, characterized in that, The elastic damping element (500) includes: The first elastic element (510) is sleeved outside the limiting tube (400). A limiting part (511) is formed at one end of the first elastic element (510) near the mounting end (402). The radial dimension of the limiting part (511) is greater than the radial dimension of the other end of the first elastic element (510). The second elastic member (520) is sleeved on the end of the first elastic member (510) away from the limiting part (511), and an installation part (530) for engaging the fan bracket (100) is formed between the second elastic member (520) and the limiting part (511).
4. The small fan vibration damping structure according to claim 3, characterized in that, When the shock-absorbing structure is installed at the connection position between the fan bracket (100) and the fan (200), the end of the limiting part (511) is flush with the mounting end (402); when the shock-absorbing structure is installed at the connection position between the fan bracket (100) and the air conditioner frame (300), the end of the limiting part (511) protrudes outward relative to the mounting end (402).
5. The small fan vibration damping structure according to claim 4, characterized in that, The radial dimension of the second elastic member (520) is the same as that of the limiting part (511), and the second elastic member (520) is clearance-fitted with the fan bracket (100).
6. The vibration damping structure for small fans according to claim 5, characterized in that, The inner diameter of the through portion (401) is larger than the outer diameter of the screw shaft, and there is a gap between the inner wall of the through portion (401) and the outer wall of the screw shaft.
7. The vibration damping structure for small fans according to claim 6, characterized in that, The limiting tube (400) is a stainless steel tube, and the first elastic element (510) and the second elastic element (520) are made of polyurethane material.