Vibration reduction damping support and air conditioner indoor unit fan

Abstract

The vibration reduction damping support comprises a bottom plate and side plates symmetrically arranged on the two sides of the bottom plate, the bottom plate and the side plates are integrally formed through stamping and bending of a composite plate, mounting grooves are formed in the tops of the side plates, and the mounting grooves are used for being connected with the fan of the air conditioner indoor unit; the composite board comprises at least two metal layers and at least one damping layer, and the damping layer is located between the metal layers. The damping device has the advantages of being compact in structure, remarkable in damping effect, low in cost and the like, reduces vibration noise of the air conditioner indoor unit in the operation air supply process, and improves using comfort of an air conditioner.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration reduction and noise reduction of air conditioners, and specifically relates to a vibration reduction and damping bracket and an indoor fan of an air conditioner. Background Art

[0002] Air conditioners will produce regular or irregular vibrations during operation, so vibration reduction devices are required during the installation of air conditioners to reduce the impact of the vibrating air conditioner fan on surrounding equipment. Traditional vibration reduction devices are generally rubber vibration dampers or directly increase the damping of the air conditioner fan. Rubber vibration dampers have better vibration reduction effects, but rubber vibration dampers require a large installation space, have poor vibration resistance and weather resistance, and increase the damping of the air conditioner fan for a large mass vibration source. Composite alloy materials have better vibration reduction effects, but the cost of such materials is too high and the required technical difficulty is relatively high, which is not conducive to reducing the cost of air conditioning. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a vibration reduction and damping bracket and an air conditioner indoor fan which have a compact structure, a significant vibration reduction effect and a low cost.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A vibration-damping and damping bracket comprises a base plate and side plates symmetrically arranged on both sides of the base plate, wherein the base plate and the side plates are integrally formed by stamping and bending a composite plate, and a mounting groove is provided on the top of the side plate, and the mounting groove is used to connect a fan of an indoor unit of an air conditioner; the composite plate comprises at least two metal layers and at least one damping layer, and the damping layer is located in the middle of the metal layer.

[0006] As a further improvement of the present invention, the bottom plate and / or the side plates are provided with a plurality of reinforcing ribs.

[0007] As a further improvement of the present invention, the R angle range of the bend between the bottom plate and the side plate is R5 to R15, and the R angle range of the reinforcing rib during stamping is R5 to R10.

[0008] As a further improvement of the present invention, the reinforcing rib has a depth of 1 mm to 3 mm, a width of 10 mm to 20 mm, and a length of 30 mm to 120 mm.

[0009] As a further improvement of the utility model, the spacing between the two side panels is between 80 mm and 200 mm, and the height between the bottom of the installation groove and the bottom plate is between 80 mm and 180 mm.

[0010] As a further improvement of the present invention, the metal layer is made of a stainless steel plate or an aluminum plate, and the thickness of the metal layer is 0.8 mm to 2 mm.

[0011] As a further improvement of the utility model, the damping layer is made of polymer material, and the peak value of the damping loss factor η of the polymer material within -10°C to 50°C is greater than 0.4, and the thickness of the damping layer is 0.03 to 0.1 mm.

[0012] As a further improvement of the utility model, the damping layer is prepared by using acrylic polymer material, polyurethane polymer material or epoxy resin polymer material.

[0013] As a general technical concept, the utility model also provides an air conditioner indoor fan, including: a wind wheel, a transmission shaft, a drive assembly and the above-mentioned vibration-damping damping bracket, the drive assembly is fixed in the mounting groove on the top of the vibration-damping damping bracket, the wind wheel is symmetrically arranged on both sides of the vibration-damping damping bracket, and the output end of the drive assembly is connected to the wind wheel through the transmission shaft.

[0014] As a further improvement of the utility model, the driving assembly includes a motor and a coupling; the output end of the motor is connected to the transmission shaft through the coupling.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] The vibration-damping and damping bracket and the indoor fan of the air conditioner of the utility model are obtained by stamping and bending a composite plate to obtain an integrally formed bottom plate and side plates, and the side plates are symmetrically arranged on both sides of the bottom plate, thereby forming the main structure of the vibration-damping and damping bracket. By providing a mounting groove on the top of the side plate, the indoor fan of the air conditioner can be quickly connected through the mounting groove, thereby improving the convenience of use of the vibration-damping and damping bracket. At the same time, the composite plate includes at least two metal layers and at least one damping layer, and the damping layer is located in the middle of the metal layer. Under the premise of ensuring that the rigidity and supporting performance of the bracket remain unchanged, the composite plate significantly improves the damping performance of the bracket, suppresses the vibration noise transmitted when the indoor fan of the air conditioner vibrates, and thus reduces the vibration noise of the indoor unit of the air conditioner during the operation of air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural principle of the vibration reduction and damping bracket in a specific embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the structural principle of the composite plate in a specific embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the application principle of the indoor fan of the air conditioner in a specific embodiment of the utility model.

[0020] Legend: 1. Vibration-reducing damping bracket; 11. Bottom plate; 12. Side plate; 13. Reinforcement ribs; 14. Mounting slot; 2. Wind wheel; 3. Transmission shaft; 4. Motor; 5. Coupling; 10. Metal layer; 20. Damping layer. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0022] Example

[0023] like Figures 1 to 3 As shown, the vibration reduction and damping bracket of the utility model comprises a bottom plate 11 and side plates 12 symmetrically arranged on both sides of the bottom plate 11, the bottom plate 11 and the side plates 12 are integrally formed by stamping and bending a composite plate, a mounting groove 14 is provided on the top of the side plate 12, and the mounting groove 14 is used to connect the fan of the air conditioner indoor unit; the composite plate comprises at least two metal layers 10 and at least one damping layer 20, and the damping layer 20 is located in the middle of the metal layer 10. The metal layer 10 provides good rigidity and support for the bracket, and the damping layer 20 plays a good damping and vibration reduction role, which can effectively suppress the generation and propagation of low-frequency vibration during the operation of the air conditioner fan, and further reduce the noise of the air conditioner indoor unit during operation.

[0024] like Figure 1 As shown, in this embodiment, a plurality of reinforcing ribs 13 are evenly distributed on the side plate 12. It is understood that in other embodiments, a plurality of reinforcing ribs 13 may be provided on the bottom plate 11 or on both the bottom plate 11 and the side plate 12 to further improve the support strength of the vibration damping bracket 1.

[0025] To prevent the composite plate from being misaligned or cracked during the stamping process, the R angle range of the bend between the bottom plate 11 and the side plate 12 is R5 to R15, and the R angle range of the reinforcing rib 13 during stamping is R5 to R10. The depth of the reinforcing rib 13 is 1mm to 3mm, the width is 10mm to 20mm, and the length is 30mm to 120mm.

[0026] In this embodiment, the distance between the two side plates 12 is between 80 mm and 200 mm, and the height between the bottom of the installation groove 14 and the bottom plate 11 is between 80 mm and 180 mm, so as to improve the supporting strength of the vibration reduction and damping bracket 1.

[0027] like Figure 2 As shown, in this embodiment, the composite plate is composed of a three-layer structure, the upper and lower layers are metal layers 10, and the middle layer is a damping layer 20. The composite plate has a thinner thickness while meeting the structural strength requirements, which is beneficial to reducing the installation volume of the vibration damping bracket 1.

[0028] In this embodiment, the metal layer 10 is made of a stainless steel plate or an aluminum plate, and the thickness of the metal layer 10 is 0.8 mm to 2 mm. The metal layer is used to ensure the strength, impact resistance and weather resistance of the vibration damping bracket.

[0029] In this embodiment, the damping layer 20 is made of polymer material, and the peak value of the damping loss factor η of the polymer material within -10°C to 50°C is greater than 0.4, and the polymer material has excellent damping performance; the thickness of the damping layer 20 is 0.03 to 0.1 mm. The polymer damping material can isolate and dissipate the vibration energy of the air conditioner indoor fan and reduce the transmission of vibration.

[0030] Furthermore, the damping layer 20 is made of acrylic polymer material. In other embodiments, the damping layer 20 can also be made of polyurethane polymer material or epoxy resin polymer material.

[0031] It can be understood that in other embodiments, composite plates with different structures and materials can be selected according to different fan vibration characteristics. The composite plate is tested using GB / T 18258-2000 and the peak value of the composite damping loss factor is greater than 0.15 in the temperature range of 0°C to 50°C. The T-peel strength of the composite plate is greater than 30N / cm2, and the shear strength is greater than 2MPa.

[0032] like Figure 3 As shown, as a general technical concept, this embodiment also provides an air conditioner indoor fan, including: a fan wheel 2, a transmission shaft 3, a driving assembly and the above-mentioned vibration damping bracket 1, the driving assembly is fixed in the mounting groove 14 at the top of the vibration damping bracket 1, the fan wheel 2 is symmetrically arranged on both sides of the vibration damping bracket 1, and the output end of the driving assembly is connected to the fan wheel 2 through the transmission shaft 3. The vibration damping bracket 1 is used to support the driving assembly and the fan wheel 2, which ensures the installation stability of the driving assembly, is also conducive to suppressing the vibration noise transmitted when the indoor fan of the air conditioner vibrates, and also reduces the use cost of the air conditioner.

[0033] Furthermore, the driving assembly includes a motor 4 and a coupling 5; the output end of the motor 4 is connected to the transmission shaft 3 through the coupling 5, which has the characteristics of compact structure, convenient installation and reliable connection, thereby improving the stability of the fan operation.

[0034] In this embodiment, the bottom plate 11 and the side plate 12 are integrally formed by stamping and bending the composite plate, and the side plates 12 are symmetrically arranged on both sides of the bottom plate 11, that is, the main structure of the vibration-damping and damping bracket 1 is formed. By providing a mounting groove 14 at the top of the side plate 12, the air conditioner indoor fan can be quickly connected through the mounting groove 14, thereby improving the convenience of using the vibration-damping and damping bracket 1. At the same time, the composite plate includes two metal layers 10 and a damping layer 20, and the damping layer 20 is located in the middle of the metal layer 10. The composite plate significantly improves the damping performance of the bracket while ensuring that the rigidity and supporting performance of the bracket remain unchanged, suppresses the vibration noise transmitted when the air conditioner indoor fan vibrates, and also reduces the vibration noise of the air conditioner indoor unit during the air supply process.

[0035] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A vibration damping bracket, characterized in that: The invention comprises a bottom plate (11) and side plates (12) symmetrically arranged on both sides of the bottom plate (11); the bottom plate (11) and the side plates (12) are integrally formed by stamping and bending a composite plate; a mounting groove (14) is provided on the top of the side plate (12); the mounting groove (14) is used to connect a fan of an indoor unit of an air conditioner; the composite plate comprises at least two metal layers (10) and at least one damping layer (20), and the damping layer (20) is located in the middle of the metal layer (10).

2. The vibration damping bracket according to claim 1, characterized in that: The bottom plate (11) and / or the side plate (12) are both provided with a plurality of reinforcing ribs (13).

3. The vibration damping bracket according to claim 2, characterized in that: The R angle range of the bend between the bottom plate (11) and the side plate (12) is R5 to R15, and the R angle range of the reinforcing rib (13) during stamping is R5 to R10.

4. The vibration damping bracket according to claim 2, characterized in that: The reinforcing rib (13) has a depth of 1 mm to 3 mm, a width of 10 mm to 20 mm, and a length of 30 mm to 120 mm.

5. The vibration damping bracket according to claim 2, characterized in that: The distance between the two side plates (12) is between 80 mm and 200 mm, and the height between the bottom of the installation groove (14) and the bottom plate (11) is between 80 mm and 180 mm.

6. The vibration damping bracket according to claim 2, characterized in that: The metal layer (10) is made of a stainless steel plate or an aluminum plate, and the thickness of the metal layer (10) is 0.8 mm to 2 mm.

7. The vibration damping bracket according to claim 2, characterized in that: The damping layer (20) is made of polymer material, and the peak value of the damping loss factor η of the polymer material within the temperature range of -10°C to 50°C is greater than 0.

4. The thickness of the damping layer (20) is 0.03 to 0.1 mm.

8. The vibration damping bracket according to claim 7, characterized in that: The damping layer (20) is prepared from acrylic polymer materials, polyurethane polymer materials, or epoxy resin polymer materials.

9. An air conditioner indoor fan, characterized in that: include: A wind wheel (2), a transmission shaft (3), a driving assembly and a vibration-damping and damping bracket (1) as described in any one of claims 1 to 8, wherein the driving assembly is fixed in a mounting groove (14) at the top of the vibration-damping and damping bracket (1), the wind wheel (2) is symmetrically arranged on both sides of the vibration-damping and damping bracket (1), and the output end of the driving assembly is connected to the wind wheel (2) via the transmission shaft (3).

10. The indoor fan of the air conditioner according to claim 9, characterized in that: The driving assembly comprises a motor (4) and a coupling (5); the output end of the motor (4) is connected to the transmission shaft (3) via the coupling (5).

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