Fan coil capable of reducing noise

Abstract

The utility model relates to the technical field of fan coils, in particular to a fan coil capable of reducing noise, which comprises a shell, guide frames which are symmetrically distributed are fixedly connected to the top of the shell, mounting racks are mounted on the guide frames in a sliding manner, a plurality of damping shock absorbers are mounted between the guide frames and each mounting rack, and the damping shock absorbers are mounted on the guide frames. A water condensation disc is arranged at the bottom of the shell, a plurality of I-shaped guide grooves are formed in the rear side of the shell, and a fan volute is jointly installed in the I-shaped guide grooves in a sliding mode. Through the design of the mounting frame, a certain distance is kept between the fan coil body and a ceiling, direct contact is avoided, direct transmission of vibration is reduced, in addition, the damping shock absorber is arranged between the mounting frame and the guide frame, vibration energy generated during operation of the fan coil can be absorbed, transmission of vibration to the ceiling or a wall is remarkably reduced, and the service life of the fan coil is prolonged. By means of the design, the vibration amplitude during equipment operation is reduced, and extra noise caused by resonance is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan -coil technology field especially relates to a fan -coil that can reduce noise. BACKGROUND

[0002] Fan -coil is the terminal equipment in central air conditioning system, is mainly used for adjusting indoor temperature and humidity, and its working principle is that through small -size fan and motor drive air flow through the coil, and the refrigerated water or hot water flowing in the pipe carries out heat exchange, thereby realizes the cooling or heating of air, reaches the purpose that adjusts indoor temperature and humidity, because its compact structure, operating efficiency is high and the installation is flexible, fan -coil is widely used in air conditioning system of various buildings.

[0003] However, in the actual use process, fan -coil is usually hoisted on the ceiling or fixed on the wall, and the unit is directly connected with the wall or the ceiling, this connection mode can cause the vibration generated when the unit operates to be directly transmitted to the wall or the ceiling, and the resonance phenomenon is caused, thereby obvious noise is produced, especially under the condition of high frequency vibration, the resonance phenomenon between fan -coil and the wall or the ceiling is particularly obvious, not only intensifies the noise problem, also can influence the stability and service life of equipment.

[0004] Therefore, it is urgent to develop a fan -coil that can reduce vibration noise. SUMMARY

[0005] In order to overcome the shortcomings that the existing fan -coil is large in noise due to vibration transmission and resonance effect in the operation process, the utility model provides a fan -coil that can reduce vibration noise.

[0006] In order to realize the above problem, the utility model adopts the following technical scheme: a fan -coil that can reduce noise, including shell, the top of the shell is fixedly connected with the symmetrically distributed guide frame, the installation frame is slidably installed on the guide frame, a plurality of damping shock absorbers are installed between the guide frame and each installation frame, the bottom of the shell is provided with a condensate pan, the rear side of the shell is provided with a plurality of I -shaped guide grooves, a fan volute is slidably installed in the plurality of I -shaped guide grooves, and an axial flow fan is installed in the fan volute.

[0007] As a preferred technical scheme of the utility model, a plurality of I -shaped guide grooves are commonly inserted with a limiting frame, a plurality of convex structures are arranged on the limiting frame, the convex structure is matched with the cross section shape of the I -shaped guide groove, a threaded hole is formed in the top center position of the limiting frame, the corresponding position of the top of the shell is also provided with the same threaded hole, and a first screw rod is screwedly arranged in the threaded hole.

[0008] As a preferred technical solution of this utility model, Z-shaped crossbars are fixedly installed on both sides of the mounting bracket by means of second screws, and nuts are threadedly provided at the lower end of the second screws.

[0009] As a preferred embodiment of this utility model, an antibacterial lamp is installed on the inner wall of the outer shell.

[0010] As a preferred embodiment of this utility model, a symmetrically distributed dustproof net is embedded in the rear side of the outer shell, and the position of the dustproof net is completely aligned with the fan volute.

[0011] As a preferred technical solution of this utility model, the condensate pan is provided with an inclined surface structure that tilts to one side.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By designing the mounting bracket, a certain distance is maintained between the fan coil unit and the ceiling to avoid direct contact and reduce the direct transmission of vibration. In addition, by setting a damping shock absorber between the mounting bracket and the guide frame, the vibration energy generated by the fan coil unit during operation can be absorbed, significantly reducing the transmission of vibration to the ceiling or wall. This design not only reduces the vibration amplitude during equipment operation, but also avoids additional noise caused by resonance.

[0013] 2. The design of the limit bracket and the I-shaped guide groove ensures the stability of the fan casing during operation, preventing loosening due to long-term use or aging, and making the disassembly and installation of the fan casing more convenient. When it is necessary to replace the axial flow fan or perform maintenance, the operation can be easily completed without complicated tools, significantly reducing maintenance costs and time.

[0014] 3. By setting Z-shaped crossbars on the mounting bracket, the mounting bracket is further reinforced using Z-shaped crossbars as support points. In this way, the Z-shaped crossbars not only play a connecting role, but also enhance the overall stability of the mounting bracket, thereby improving the installation reliability of the fan coil unit. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional sectional view of the outer shell, guide frame, and mounting bracket of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the axial flow fan, fan casing, and limiting frame of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the Z-shaped crossbar, screw, and nut of this utility model;

[0019] Figure 5 This is a three-dimensional cross-sectional view of the outer shell, antibacterial lamp, and dustproof net of this utility model.

[0020] The components include: 1. Outer shell, 2. Guide frame, 3. Mounting bracket, 4. Damping shock absorber, 5. Condensate tray, 6. Axial flow fan, 7. Fan volute, 8. First screw, 9. Limiting bracket, 10. I-shaped guide groove, 11. Z-shaped crossbar, 12. Second screw, 13. Nut, 14. Antibacterial lamp, 15. Dustproof net, 16. Sloping structure. Detailed Implementation

[0021] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, and lateral, also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0022] Example 1: Please refer to Figure 1 , Figure 2 and Figure 5 A noise-reducing fan coil unit includes a housing 1. An antibacterial lamp 14 is installed on the inner wall of the housing 1. The antibacterial lamp 14 effectively kills bacteria and viruses in the air through ultraviolet irradiation, ensuring cleaner and more hygienic air after treatment by the fan coil unit. A symmetrically distributed guide frame 2 is fixed to the top of the housing 1. A mounting bracket 3 is slidably mounted on the guide frame 2. Three damping shock absorbers 4 are installed between the guide frame 2 and each mounting bracket 3 to absorb the vibration energy generated during fan coil unit operation and reduce vibration transmission to the ceiling. A condensate tray 5 is provided at the bottom of the housing 1 to collect and drain condensate, preventing condensate dripping and affecting the indoor environment. The condensate tray 5 has an inclined surface structure 16 tilted to one side, which guides condensate... Water is quickly drained to prevent water accumulation in the condensate pan 5, thereby reducing the possibility of mold growth and the risk of secondary pollution caused by water accumulation. The rear side of the outer shell 1 is provided with three I-shaped guide grooves 10. The cross-section of the I-shaped guide grooves 10 is "I" shaped, which has good stability and guiding performance. Multiple I-shaped guide grooves 10 are slidably installed with the fan volute 7. The sliding design of the fan volute 7 facilitates the maintenance and cleaning of the equipment. Two axial flow fans 6 are arranged side by side inside the fan volute 7. The rear side of the outer shell 1 is embedded with symmetrically distributed dustproof nets 15, and the position of the dustproof nets 15 is completely aligned with the fan volute 7. The design of the dustproof nets 15 can effectively block external dust from entering the fan coil unit, reducing the problems of equipment performance degradation and noise increase caused by dust accumulation.

[0023] In actual use, the mounting bracket 3 is fixed to the ceiling with expansion bolts, so that the fan coil unit is suspended below the ceiling. The mounting bracket 3 keeps a certain distance between the fan coil unit and the ceiling, avoiding direct contact and reducing the direct transmission of vibration. In addition, the damping shock absorber 4 between the mounting bracket 3 and the guide frame 2 can effectively absorb the vibration energy generated during the operation of the fan coil unit, further weakening the transmission of vibration to the ceiling or wall. This design not only significantly reduces the vibration transmission efficiency during the operation of the fan coil unit, but also effectively avoids the additional noise caused by resonance, thereby greatly improving the noise reduction effect of the equipment and enhancing the user's comfort experience.

[0024] Example 2: Based on Example 1, please refer to... Figure 3 Three I-shaped guide grooves 10 are inserted together to form a limiting frame 9. The limiting frame 9 has four protruding structures that match the cross-sectional shape of the I-shaped guide grooves 10, thereby achieving a stable insertion of the limiting frame 9. In addition, the limiting frame 9 abuts against the fan volute 7 through the protruding structures to ensure that the fan volute 7 will not shift or loosen due to vibration during operation. A threaded hole is opened at the top center of the limiting frame 9, and the corresponding threaded hole is also opened at the top of the outer shell 1. A first screw 8 is threaded into the threaded hole to firmly fix the limiting frame 9 to the outer shell 1.

[0025] During long-term operation, the aging of the axial fan 6 component in the fan coil unit may lead to increased vibration and noise problems. Therefore, regular inspection and replacement of the axial fan 6 is crucial for ensuring the normal operation of the equipment. The following are the specific steps for replacing the axial fan 6: When it is necessary to replace the axial fan 6, first rotate the first screw 8 to gradually move it upward and disengage it from the threaded hole, thus releasing the fixed connection between the limit bracket 9 and the outer casing 1. Then, smoothly pull the limit bracket 9 out of the I-shaped guide groove 10, while simultaneously releasing the limit bracket 9 from the fan. With the volute 7 fixed in place, the fan volute 7 is in a free state and can be easily disassembled. Then, open the fan volute 7 and take out the internal axial fan 6 for replacement or repair. After replacement, reinsert the fan volute 7 into the I-shaped guide groove 10. Next, reinsert the limiting bracket 9 into the I-shaped guide groove 10 so that the protruding structure fits tightly with the I-shaped guide groove 10, restoring the fixed position of the fan volute 7. Finally, reinsert the first screw 8 into the threaded hole on the top of the limiting bracket 9 and the outer casing 1, and rotate the first screw 8 until it is fully tightened.

[0026] Please see Figure 4The mounting bracket 3 has Z-shaped crossbars 11 fixedly installed on both the front and rear sides by second screws 12. The lower end of the second screw 12 is threaded with a nut 13 to fasten the Z-shaped crossbars 11 and ensure a stable connection between them and the mounting bracket 3.

[0027] Before installing the fan coil unit, place the Z-shaped crossbar 11 on the front and rear sides of the mounting frame 3 and fix it with the second screw 12. Then tighten the nut 13 at the lower end of the second screw 12 to firmly connect the Z-shaped crossbar 11 to the mounting frame 3. After the installation of the Z-shaped crossbar 11 is completed, use the Z-shaped crossbar 11 as a support point to further reinforce the mounting frame 3. In this way, the Z-shaped crossbar 11 not only plays a connecting role, but also enhances the overall stability of the mounting frame 3, thereby improving the installation reliability of the fan coil unit.

[0028] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A fan coil unit for reducing noise, comprising a housing, characterized in that: The top of the outer shell is fixed with symmetrically distributed guide frames, and mounting brackets are slidably installed on the guide frames. Multiple damping shock absorbers are installed between the guide frames and each mounting bracket. A condensate tray is provided at the bottom of the outer shell. Multiple I-shaped guide grooves are provided on the rear side of the outer shell. A fan volute is slidably installed on the multiple I-shaped guide grooves. An axial flow fan is installed inside the fan volute.

2. A fan coil unit for reducing noise according to claim 1, characterized in that: Multiple I-shaped guide grooves are inserted together into a limiting frame. The limiting frame has multiple protrusions that match the cross-sectional shape of the I-shaped guide grooves. A threaded hole is opened at the top center of the limiting frame, and the same threaded hole is also opened at the corresponding position on the top of the outer shell. A first screw is threaded into the threaded hole.

3. A fan coil unit for reducing noise according to claim 2, characterized in that: Both sides of the mounting bracket are fixedly mounted with Z-shaped crossbars by second screws, and the lower end of the second screws is threaded with a nut.

4. A fan coil unit for reducing noise according to claim 3, characterized in that: An antibacterial lamp is installed on the inner wall of the outer shell.

5. A fan coil unit for reducing noise according to claim 4, characterized in that: The rear side of the outer casing is embedded with symmetrically distributed dustproof nets, and the position of the dustproof nets is completely aligned with the fan volute.

6. A fan coil unit for reducing noise according to claim 5, characterized in that: The condensate pan has an inclined surface structure that tilts to one side.

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