Noise reduction fan
By introducing a cooling water jacket and a vibration damping base into the air suspension fan, combined with components such as heat-conducting plates, sound-insulating cotton blocks, and dampers, the problem of motor noise diffusion is solved, achieving more efficient noise reduction and vibration damping effects.
Patent Information
- Application Number
- CN202422358237.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The noise from the motors of existing air suspension fans still diffuses into the surrounding environment through the motor casing during operation, resulting in poor noise reduction.
The system employs a cooling water jacket and a vibration damping base structure. The cooling water jacket contains heat-conducting plates and sound-insulating cotton blocks. The vibration damping base includes a fixed base, a support base, a sliding block, a vibration damping spring, and a damper. These components are used to enclose the fan motor for sound insulation, cooling, and vibration buffering.
It effectively reduces the noise diffusion of the fan motor, improves the noise reduction effect, and stabilizes the operation of the fan through vibration reduction measures, achieving more efficient noise reduction and vibration reduction.
Smart Images
Figure CN223511201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology and is a noise-reducing fan. Background Technology
[0002] An air-suspended blower is a type of blower that uses air suspension technology to suspend the blower rotor in the air, thereby reducing friction, noise, and energy consumption. Its working principle is based on aerodynamics and suspension technology. The rotor is lifted by an air film formed between the rotor and the bearing surface by high-pressure air, achieving contactless support. This technology not only improves transmission efficiency but also reduces energy consumption and noise, making air-suspended blowers have significant advantages in energy saving, vibration reduction, and low noise.
[0003] When using related air suspension fans, the motor is usually mounted on the air box, and then the output rotor of the motor is made to float freely in the space and connected to the impeller using air bearings. Since there is no mechanical contact between the motor rotor and the bearing, the noise caused by mechanical friction is effectively reduced when the impeller rotates inside the air box. Air is drawn into the air box and discharged at a high speed and pressure under the push of the impeller blades, thus realizing the low-noise air delivery function of the fan.
[0004] However, when using the above method, since the motor is usually directly exposed when mounted on the bellows, even after the air bearing reduces the noise generated by mechanical friction during normal operation, some noise will still diffuse directly into the surrounding environment through the motor housing, thus greatly reducing the noise reduction effect. Summary of the Invention
[0005] This utility model provides a noise-reducing fan that overcomes the shortcomings of the prior art and can effectively solve the problem of high noise in existing fan motors.
[0006] The technical solution of this utility model is achieved through the following measures: A noise reduction fan includes a fan, a cooling water jacket and a shock-absorbing base. The shock-absorbing base is fixedly installed on the lower side of the fan. The fan includes a fan housing, a fan impeller and a fan motor. The fan impeller is provided inside the fan housing. The fan motor that can drive the fan impeller to rotate is provided on the right side of the fan housing. A cooling water jacket is fixedly installed on the right side of the fan housing corresponding to the outer position of the fan motor.
[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:
[0008] The above may also include heat-conducting plates, with a number of heat-conducting plates that penetrate the cooling water jacket at intervals along the circumference on the outer side of the cooling water jacket.
[0009] The outer end of the aforementioned heat-conducting sheet may have at least one vent hole that runs through the inside and outside at intervals on the left and right.
[0010] The above may also include sound-insulating cotton blocks, with sound-insulating cotton blocks provided on the inner side of the cooling water jacket.
[0011] The aforementioned shock-absorbing base may include a fixed base, a support base, a sliding block, and a shock-absorbing spring. The fixed base has two support bases spaced apart on the left and right. The upper side of the support base has a rectangular groove. Two shock-absorbing springs are spaced apart in the rectangular groove. A sliding block is fixedly installed on the lower side of the fan casing corresponding to the position above the support base. The lower end of the sliding block is located in the rectangular groove. The lower side of the sliding block is fixedly installed together with the upper end of the shock-absorbing spring.
[0012] The aforementioned shock-absorbing base may also include a damper, with the damper fixedly installed on the upper side of the fixed seat corresponding to the position between the two support seats, and the upper end of the damper fixedly installed together with the lower side of the fan casing.
[0013] This utility model has a reasonable and compact structure and is easy to use. By setting a cooling water jacket, it is easy to cover and insulate the fan motor while effectively cooling the fan motor, thus avoiding the noise from the exposed installation of the fan motor being directly diffused into the surrounding environment. By setting a vibration damping base, it is easy to effectively buffer and dampen the vibration force generated when the fan motor is running, thereby effectively reducing the noise generated by vibration. It has the characteristics of stability, high efficiency and good noise reduction effect. Attached Figure Description
[0014] Appendix Figure 1 This is a three-dimensional structural diagram of embodiments 1 to 6 of this utility model.
[0015] Appendix Figure 2 For the appendix Figure 1 A magnified sectional view of the central cooling water jacket.
[0016] Appendix Figure 3 For the appendix Figure 1 Enlarged cross-sectional view of the middle shock-absorbing base (left side).
[0017] The codes in the attached diagram are as follows: 1 is the fan housing, 2 is the fan impeller, 3 is the fan motor, 4 is the cooling water jacket, 5 is the heat conduction plate, 6 is the vent, 7 is the fixed base, 8 is the support base, 9 is the sliding block, 10 is the shock absorption spring, 11 is the rectangular groove, 12 is the damper, and 13 is the sound insulation cotton block. Detailed Implementation
[0018] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.
[0019] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1The layout is described using a central A-axis method, and the positional relationships such as front, back, top, bottom, left, and right are determined based on the layout direction of the attached diagram in the instruction manual.
[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings:
[0021] Example 1: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the noise-reducing fan includes a fan, a cooling water jacket 4, and a vibration-damping base. The vibration-damping base is fixedly installed on the lower side of the fan. The fan includes a fan housing 1, a fan impeller 2, and a fan motor 3. The fan impeller 2 is housed inside the fan housing 1, and the fan motor 3, which drives the fan impeller 2, is located on the right side of the fan housing 1. A cooling water jacket 4 is fixedly installed on the right side of the fan housing 1, corresponding to the outer position of the fan motor 3. During use, the cooling water jacket 4 effectively encloses and insulates the fan motor 3 while simultaneously cooling it, preventing noise from directly spreading to the surrounding environment due to exposed installation of the fan motor 3, thus effectively improving the noise reduction effect. The vibration-damping base effectively buffers and dampens the vibration generated during the operation of the fan motor 3, further reducing noise generated by vibration and improving the noise reduction effect.
[0022] The above-mentioned noise reduction fans can be further optimized and / or improved according to actual needs:
[0023] Example 2: As shown in the attached document Figure 1 , 2 As shown in Figure 3, it also includes heat-conducting plates 5. Several heat-conducting plates 5 with their inner ends penetrating the cooling water jacket 4 are arranged at intervals along the circumference on the outer side of the cooling water jacket 4. During use, by setting the heat-conducting plates 5, which can be made of aluminum, the heat adsorbed in the water inside the cooling water jacket 4 and the heat inside the cooling water jacket 4 can be conducted to the external environment for heat dissipation.
[0024] Example 3: As shown in the attached document Figure 1 , 2 As shown in Figure 3, at least one through-hole 6 is provided at intervals on the left and right sides of the outer end of the heat-conducting plate 5. During use, the contact area between the heat-conducting plate 5 and the outside air is increased through the vent holes 6 on the heat-conducting plate 5, thereby accelerating the conduction and dissipation of heat.
[0025] Example 4: As shown in the appendix Figure 1 , 2 As shown in Figure 3, it also includes sound-insulating cotton blocks 13, which are provided on the inner side of the cooling water jacket 4. During use, the sound-insulating cotton blocks 13 are used to absorb, reflect, and reduce the noise generated by the fan motor 3.
[0026] Example 5: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the vibration damping base includes a fixed base 7, a support base 8, a sliding block 9, and a vibration damping spring 10. Two support bases 8 are spaced apart on the left and right sides of the fixed base. A rectangular groove 11 is provided on the upper side of each support base 8. Two vibration damping springs 10 are spaced apart front and back within the rectangular groove 11. A sliding block 9 is fixedly installed on the lower side of the fan housing 1, corresponding to the position above the support base 8. The lower end of the sliding block 9 is located within the rectangular groove 11, and the lower side of the sliding block 9 is fixedly installed together with the upper end of the vibration damping spring 10. During use, by setting the support base 8, the sliding block 9 moves up and down within the rectangular groove 11. The vibration damping spring 10 effectively buffers and dampens the vibration force generated when the fan motor 3 is running, thereby effectively reducing the noise generated by vibration and further improving the noise reduction effect.
[0027] Example 6: As shown in the appendix Figure 1 , 2 As shown in Figure 3, the vibration damping base also includes a damper 12. The damper 12 is fixedly installed on the upper side of the fixed seat 7 corresponding to the position between the two support seats 8, and the upper end of the damper 12 is fixedly installed together with the lower side of the fan casing 1. During use, this setting makes the vibration damping base more stable and reliable.
[0028] The above technical features constitute the preferred embodiment of this utility model, which has strong adaptability and the best implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.
Claims
1. A noise-reducing fan, characterized in that... The device includes a fan, a cooling water jacket, and a vibration damping base. The vibration damping base is fixedly installed on the lower side of the fan. The fan includes a fan housing, a fan impeller, and a fan motor. The fan impeller is located inside the fan housing. The fan motor, which drives the fan impeller to rotate, is located on the right side of the fan housing. A cooling water jacket is fixedly installed on the right side of the fan housing, corresponding to the outer position of the fan motor. The device also includes heat-conducting plates. Several heat-conducting plates with their inner ends penetrating the cooling water jacket are arranged at intervals along the circumference on the outer side of the cooling water jacket. At least one vent hole with internal and external penetration is arranged at intervals on the left and right sides of the outer end of the heat-conducting plates. The device also includes sound-insulating cotton blocks. Sound-insulating cotton blocks are provided on the inner side of the cooling water jacket.
2. The noise-reducing fan according to claim 1, characterized in that... The shock-absorbing base includes a fixed base, a support base, a sliding block, and a shock-absorbing spring. The fixed base has two support bases spaced apart on the left and right. The upper side of the support base has a rectangular groove. Two shock-absorbing springs are spaced apart in the rectangular groove. A sliding block is fixedly installed on the lower side of the fan casing corresponding to the position above the support base. The lower end of the sliding block is located in the rectangular groove. The lower side of the sliding block is fixedly installed together with the upper end of the shock-absorbing spring.
3. The noise-reducing fan according to claim 2, characterized in that... The shock-absorbing base also includes a damper. The damper is fixedly installed on the upper side of the fixed seat corresponding to the position between the two support seats, and the upper end of the damper is fixedly installed together with the lower side of the fan casing.