A noise reduction device for reducing noise of an air source heat pump

Abstract

The utility model discloses a kind of noise reduction device for reducing air source heat pump noise, it is related to equipment noise reduction technical field, including base, the top of base is symmetrically provided with two sheet metal parts, two The sheet metal part is abutted, and forms sound-absorbing hopper, the top of base is provided with compressor, the compressor is located in sound-absorbing hopper, one side of the sheet metal part is provided with sound-absorbing egg cotton, multiple sound-absorbing cotton are bonded on the compressor, one side of the sound-absorbing egg cotton is provided with support spring;The utility model can first absorb the noise generated by sound-absorbing cotton by bonding sound-absorbing cotton on compressor, then cooperate sound-absorbing egg cotton can further absorb noise, finally cooperate sheet metal part, can block the remaining noise, so that three layers of noise reduction space can be formed, the sound-absorbing device compact structure greatly reduces the noise of air source heat pump, has the value of promotion in the environment with relatively high noise requirement.

Description

Technical Field

[0001] This utility model relates to the field of equipment noise reduction technology, specifically a noise reduction device for reducing the noise of an air source heat pump. Background Technology

[0002] An air source heat pump is an energy-saving device that uses high-grade energy to transfer heat from a low-grade heat source (air) to a high-grade heat source; it is a type of heat pump. As the name suggests, heat pumps, like conventional pumps, can convert indirect low-grade heat energy (such as the heat contained in air, soil, and water) into usable high-grade heat energy, thereby achieving the goal of saving some high-grade energy (such as coal, natural gas, oil, and electricity).

[0003] Currently, air source heat pump equipment is widely used, especially in many community projects where it is extensively used for winter heating. Because the machines are typically installed outdoors, close to residences, noise pollution during operation is a significant problem.

[0004] To address this issue, we designed a noise reduction device for air-source heat pumps. Utility Model Content

[0005] The purpose of this invention is to provide a noise reduction device for air source heat pumps, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a noise reduction device for air source heat pumps, including a base. Two sheet metal parts are symmetrically arranged on the top of the base. The two sheet metal parts abut against each other and form a noise reduction chamber. A compressor is arranged on the top of the base and is located inside the noise reduction chamber. A sound-absorbing cotton is arranged on one side of the sheet metal parts, and multiple sound-absorbing cottons are adhered to the compressor.

[0007] Furthermore, a support spring is provided on one side of the sound-absorbing cotton, and the other end of the support spring is fixedly installed on the side of the sound-absorbing cotton away from the compressor.

[0008] Furthermore, each of the sound-absorbing cotton pieces has two supporting springs on one side, and the two supporting springs are symmetrically fixedly installed on one side of the sound-absorbing cotton piece.

[0009] Furthermore, a bidirectional lead screw is rotatably installed inside the base, and two nuts are symmetrically threaded onto the bidirectional lead screw. A connector is provided on the top of the nuts, and the other end of the connector slides through the base and is fixedly connected to the bottom of the sheet metal part. A torsion block is rotatably installed on one side of the base, and one end of the bidirectional lead screw rotatably passes through the base and is connected to the torsion block for transmission. An extension plate is fixedly installed on the top of one side of one of the sheet metal parts, and the other side of the extension plate is slidably inserted into the side of another sheet metal part.

[0010] Furthermore, a fixing groove is provided on the top of one side of another of the sheet metal parts, and one side of the extension plate is slidably inserted into the fixing groove.

[0011] Furthermore, the outer surface of the twist block is provided with anti-slip texture.

[0012] Furthermore, the base has an installation cavity and two fixing ports on its interior and top, respectively. The installation cavity and fixing ports are connected. The bidirectional lead screw is rotatably disposed in the installation cavity in the horizontal direction, and one end of the connector is slidably inserted into the fixing port.

[0013] Furthermore, it also includes a limiting component, which includes a guide rod. The guide rod is fixedly installed in the mounting cavity in a horizontal direction. The nut has a sliding hole that matches the guide rod, and the nut is slidably sleeved on the guide rod through the sliding hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by bonding the sound-absorbing cotton to the compressor, the noise generated by the sound-absorbing cotton can be absorbed first, and then the noise can be further absorbed by the sound-absorbing egg cotton. Finally, the remaining noise can be blocked by the sheet metal parts, so that a three-layer noise reduction space can be formed. The sound-absorbing device has a compact structure and greatly reduces the noise of the air source heat pump. It has the value of being promoted in environments with high noise requirements.

[0015] Compared with the prior art, the beneficial effect of this utility model is that by setting a support spring, the support spring can always apply a pushing force to the sound-absorbing cotton, thereby improving the stability of the sound-absorbing cotton on the compressor.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by rotating the torsion block, the torsion block can drive the bidirectional lead screw to rotate, so that the two nuts drive the connecting parts and sheet metal parts to move away from or closer to each other along the direction set by the guide rod. During this process, the extension plate will slide in the fixed groove, which can adjust the distance between the two sheet metal parts, thus making it suitable for compressors of different widths. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the exterior of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention, viewed from the front and partially sectional.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention, viewed from below with a partial cross-sectional view of the interior.

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Base; 2. Sheet metal part; 3. Compressor; 4. Noise-absorbing egg cotton; 5. Sound-absorbing cotton; 6. Support spring; 7. Two-way lead screw; 8. Nut; 9. Connector; 10. Torque block; 11. Extension plate; 12. Fixing groove; 13. Mounting cavity; 14. Fixing port; 15. Guide rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a noise reduction device for reducing the noise of an air source heat pump, including a base 1, two sheet metal parts 2 symmetrically arranged on the top of the base 1, the two sheet metal parts 2 abutting each other and forming a noise reduction hopper, a compressor 3 arranged on the top of the base 1, the compressor 3 being located inside the noise reduction hopper, a noise reduction egg cotton 4 arranged on one side of the sheet metal parts 2, and multiple sound-absorbing cotton 5 adhered to the compressor 3.

[0024] In practice, by attaching the sound-absorbing cotton 5 to the compressor 3, the noise generated by the sound-absorbing cotton 5 can be absorbed first. Then, with the help of the sound-absorbing egg cotton 4, the noise can be further absorbed. Finally, with the help of the sheet metal part 2, the remaining noise can be blocked, so that a three-layer noise reduction space can be formed. The sound-absorbing device has a compact structure and greatly reduces the noise of the air source heat pump. It has the value of being promoted in environments with high noise requirements.

[0025] It should be noted that the sound-absorbing egg-shaped foam 4 has a convex and concave wave-shaped surface (crest / trough design) and is filled with tiny gaps and semi-open pores. It converts sound energy into heat energy through its porous physical properties. Its main component is polyurethane foam, which is foamed using a special process. Its sound absorption coefficient can reach 0.85, which can effectively absorb the noise generated by the compressor 3.

[0026] See Figure 1-4 A support spring 6 is provided on one side of the sound-absorbing cotton 5, and the other end of the support spring 6 is fixedly installed on the side of the sound-absorbing cotton 5 away from the compressor 3. By providing the support spring 6, a pushing force can always be applied to the sound-absorbing cotton 5, thereby improving the stability of the sound-absorbing cotton 5 on the compressor 3.

[0027] See Figure 1-4Each sound-absorbing cotton 5 has two support springs 6 on one side, and the two support springs 6 are symmetrically fixed on one side of the sound-absorbing cotton 5. The arrangement of two support springs 6 can ensure the balance of the two ends on one side of the sound-absorbing cotton 5, thereby further improving the stability of the sound-absorbing cotton 5 on the compressor 3.

[0028] See Figure 1-4 A bidirectional lead screw 7 is rotatably installed inside the base 1. Two nuts 8 are symmetrically threaded onto the bidirectional lead screw 7. A connector 9 is provided on the top of the nuts 8. The other end of the connector 9 slides through the base 1 and is fixedly connected to the bottom of the sheet metal part 2. A torsion block 10 is rotatably installed on one side of the base 1. One end of the bidirectional lead screw 7 rotatably passes through the base 1 and is connected to the torsion block 10. An extension plate 11 is fixedly installed on the top of one side of one sheet metal part 2. The other side of the extension plate 11 is slidably inserted into the side of another sheet metal part 2.

[0029] One of the sheet metal parts 2 has a fixing groove 12 on the top of one side. The side of the extension plate 11 is slidably inserted into the fixing groove 12. It also includes a limiting component, which includes a guide rod 15. The guide rod 15 is fixedly installed in the mounting cavity 13 in the horizontal direction. The nut 8 has a sliding hole that matches the guide rod 15. The nut 8 is slidably sleeved on the guide rod 15 through the sliding hole.

[0030] In specific implementation, based on the above implementation, by rotating the torsion block 10, the torsion block 10 can drive the bidirectional lead screw 7 to rotate, so that the two nuts 8 drive the connecting piece 9 and the sheet metal piece 2 to move away from or closer to each other along the direction set by the guide rod 15. During this process, the extension plate 11 will slide in the fixing groove 12, which can adjust the distance between the two sheet metal pieces 2, so that it can be applied to compressors 3 of different widths.

[0031] See Figure 1-4 The base 1 has an installation cavity 13 and two fixing ports 14 on its interior and top, respectively. The installation cavity 13 and the fixing ports 14 are connected. The bidirectional lead screw 7 is rotatably mounted in the installation cavity 13 in the horizontal direction, and one end of the connector 9 is slidably inserted into the fixing port 14. This facilitates the installation of components inside the base 1, greatly benefiting installers. Specifically, the base 1 can be divided into half, and the installation cavity 13 and fixing ports 14 can be easily opened inside the base 1 to facilitate the installation of components. After installation, the two halves of the base 1 can simply be reassembled.

[0032] See Figure 1-4 The outer surface of the twist block 10 is provided with anti-slip texture. This increases the friction between the user's hand and the twist block 10, thus helping to solve the problem of slippage when the user rotates the twist block 10.

[0033] Working principle: When in use, by attaching the sound-absorbing cotton 5 to the compressor 3, the noise generated by the sound-absorbing cotton 5 can be absorbed first. Then, with the help of the sound-absorbing egg cotton 4, the noise can be further absorbed. Finally, with the help of the sheet metal part 2, the remaining noise can be blocked, so that a three-layer noise reduction space can be formed. The sound-absorbing device has a compact structure and greatly reduces the noise of the air source heat pump. It has the value of being promoted in environments with high noise requirements.

[0034] In addition, by setting a support spring 6, the support spring 6 can always apply a thrust to the sound-absorbing cotton 5, thereby improving the stability of the sound-absorbing cotton 5 on the compressor 3.

[0035] Before the above operation, rotating the torsion block 10 can cause the torsion block 10 to drive the bidirectional lead screw 7 to rotate, so that the two nuts 8 drive the connecting piece 9 and the sheet metal piece 2 to move away from or closer to each other along the direction set by the guide rod 15. During this process, the extension plate 11 will slide in the fixing groove 12, which can adjust the distance between the two sheet metal pieces 2, so that it can be used for compressors 3 of different widths.

Claims

1. A noise reduction device for air-source heat pumps, comprising a base (1), characterized in that, The base (1) has two sheet metal parts (2) symmetrically arranged on its top. The two sheet metal parts (2) abut against each other and form a sound-absorbing hopper. The base (1) has a compressor (3) on its top. The compressor (3) is located inside the sound-absorbing hopper. The sheet metal parts (2) have a sound-absorbing egg cotton (4) on one side. The compressor (3) has multiple sound-absorbing cotton (5) glued on its side.

2. The noise reduction device for air source heat pumps as described in claim 1, characterized in that: A support spring (6) is provided on one side of the sound-absorbing cotton (4), and the other end of the support spring (6) is fixedly installed on the side of the sound-absorbing cotton (5) away from the compressor (3).

3. The noise reduction device for air source heat pumps as described in claim 2, characterized in that: The number of support springs (6) on one side of each of the sound-absorbing cotton (5) is two, and the two support springs (6) are symmetrically fixed on one side of the sound-absorbing cotton (5).

4. The noise reduction device for air source heat pumps as described in claim 1, characterized in that: A bidirectional lead screw (7) is rotatably installed inside the base (1). Two nuts (8) are symmetrically threaded on the bidirectional lead screw (7). A connector (9) is provided on the top of the nut (8). The other end of the connector (9) slides through the base (1) and is fixedly connected to the bottom of the sheet metal part (2). A torsion block (10) is rotatably installed on one side of the base (1). One end of the bidirectional lead screw (7) rotatably passes through the base (1) and is connected to the torsion block (10) in a transmission manner. An extension plate (11) is fixedly installed on the top of one side of one of the sheet metal parts (2). The other side of the extension plate (11) is slidably inserted into the side of another sheet metal part (2).

5. A noise reduction device for air source heat pumps as described in claim 4, characterized in that: One of the sheet metal parts (2) has a fixing groove (12) on the top of one side, and one side of the extension plate (11) is slidably inserted into the fixing groove (12).

6. A noise reduction device for air source heat pumps as described in claim 4, characterized in that: The outer surface of the twist block (10) is provided with anti-slip texture.

7. A noise reduction device for air source heat pumps as described in claim 4, characterized in that: The base (1) has an installation cavity (13) and two fixing ports (14) respectively inside and on top. The installation cavity (13) and the fixing ports (14) are connected. The bidirectional lead screw (7) is rotatably installed in the installation cavity (13) in the horizontal direction. One end of the connector (9) is slidably inserted into the fixing port (14).

8. A noise reduction device for air source heat pumps as described in claim 7, characterized in that: It also includes a limiting component, which includes a guide rod (15). The guide rod (15) is fixedly installed in the mounting cavity (13) in the horizontal direction. The nut (8) has a sliding hole that matches the guide rod (15). The nut (8) is slidably sleeved on the guide rod (15) through the sliding hole.

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