Noise reduction device of air source heat pump

Abstract

The noise reduction device of the air source heat pump comprises an air source heat pump outdoor unit body, a shielding piece is arranged on the top of the air source heat pump outdoor unit body, and a buffering mechanism is arranged between the shielding piece and the air source heat pump outdoor unit body. Under the action of the sound insulation cover and the noise reduction rubber plate on the inner wall of the sound insulation cover, sound generated during operation of the compressor body can be absorbed, a sound source of the compressor body is isolated in the sound insulation box, then the noise reduction effect is achieved, and noise caused by high frequency and low frequency is greatly reduced; and the noise reduction effect and the life quality of surrounding people are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pumps, in particular to a noise reduction device for air source heat pumps. Background Art

[0002] Air source heat pump is an energy-saving device that uses high-level energy to make heat flow from low-level heat source air to high-level heat source. It is a form of heat pump. As the name suggests, heat pump is like a pump, which can convert low-level heat energy that cannot be directly used (such as heat contained in air, soil, and water) into high-level heat energy that can be used, thereby achieving the purpose of saving some high-level energy (such as coal, gas, oil, electricity, etc.).

[0003] The authorized patent with known application number: CN202123018964.3 discloses a shock-absorbing and noise-reducing device for an air source heat pump, which relates to the technical field of air source heat pumps. The utility model includes a base, a seismic isolation support, a main side panel, a first translation mechanism and an L-shaped side panel, and a plurality of circular grooves distributed in a lattice are provided on the top of the base. The utility model arranges a first translation mechanism and a second translation mechanism so that the side panels around the air source heat pump body can be expanded or closed, thereby facilitating its installation and maintenance. By arranging a seismic isolation support, a shock-absorbing assembly and sound insulation cotton, the shock-absorbing and noise-reducing effect of the device is greatly improved, solving the problem that the existing shock-absorbing and noise-reducing device of the air source heat pump is not ideal and the internal air source heat pump is not easy to maintain.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned solution has the following problems: when it is in use, it only relies on sound insulation cotton for sound insulation and noise reduction, and the noise reduction effect is not ideal. The noise reduction method currently used in the existing air source heat pump unit is usually to stick sound-absorbing cotton on the sheet metal of the unit or to wrap the compressor cylinder with sound insulation cotton. Although there is a certain noise reduction effect, the noise reduction effect is limited, which can easily lead to noise propagation and affect the surrounding living environment. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a noise reduction device for an air source heat pump. This technical solution solves the problem that the noise reduction method adopted by the existing air source heat pump unit proposed in the above background technology has a certain noise reduction effect, but the noise reduction effect is limited.

[0006] To achieve the above-mentioned purpose, the utility model provides a noise reduction device for an air source heat pump, comprising an air source heat pump external machine body, a shielding member is provided on the top of the air source heat pump external machine body, and a buffer mechanism is provided between the shielding member and the air source heat pump external machine body;

[0007] A soundproof box is fixedly installed inside the main body of the air source heat pump outer unit, a compressor body is fixedly installed inside the soundproof box, and a soundproof cover covering the outer surface of the compressor body is fixedly installed on the inner bottom wall of the soundproof box;

[0008] A noise reduction rubber plate is fixedly mounted on the inner wall of the soundproof cover, and a protective mechanism is provided on the surface of the air source heat pump outer unit body at the exhaust end.

[0009] Optionally, the protective mechanism includes a fixed frame fixedly mounted on the surface of the air source heat pump outer unit body and located at the exhaust end, a plurality of rotating shaft rods extending through and rotatably connected to the inner walls of the fixed frame, a protective plate fixedly mounted on the surface of the rotating shaft rods, and a rotating component provided on one side of the fixed frame for rotating the rotating shaft rods.

[0010] The rotating component is composed of a gear fixedly connected to one end of the rotating shaft rod, a power piece arranged on the surface of the outer body of the air source heat pump, and a rack arranged at the output end of the power piece and meshing with the gear.

[0011] The power part is composed of a fixed block fixedly mounted on the surface of the air source heat pump outer machine body and located on one side of the fixed frame, and an electric push rod fixedly mounted on the bottom of the fixed block, and the rack is fixedly mounted on the output end of the electric push rod.

[0012] Optionally, the shielding member is composed of a shielding plate arranged above the top of the air source heat pump outdoor unit body.

[0013] Optionally, the buffer mechanism includes a damper fixedly installed at the top center of the air source heat pump outdoor unit body, a spring 1 sleeved on the surface of the damper and an auxiliary component arranged on the top of the air source heat pump outdoor unit body, the top of the damper is connected to the baffle plate, and the two ends of the spring 1 are respectively connected to the baffle plate and the air source heat pump outdoor unit body.

[0014] The auxiliary component is composed of a U-shaped plate symmetrically fixedly installed on both sides of the top of the air source heat pump external unit body, a fixed rod fixedly installed between the inner walls of the U-shaped plate, two sliders symmetrically slidably connected to the surface of the fixed rod, a spring mounted on the surface of the fixed rod and connected to the two sliders at both ends, and a support rod hinged at the top of the slider and one end of which is hinged to the shielding plate.

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

[0016] During the operation of the air source heat pump outdoor unit, the sound generated by the operation of the compressor body can be absorbed by the sound insulation cover and the noise reduction rubber plate on its inner wall, so that the sound source of the compressor body is isolated inside the sound insulation box, thereby achieving the effect of noise reduction, isolating the propagation of noise, greatly reducing the noise caused by high and low frequencies, and effectively improving the noise reduction effect and the quality of life of surrounding people.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the main body of the external unit of the air source heat pump of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the fixing frame of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial structure of the shielding plate of the utility model.

[0022] In the figure: 1. Main body of the air source heat pump outdoor unit; 2. Sound insulation box; 3. Compressor body; 4. Sound insulation cover; 5. Noise reduction rubber plate; 6. Fixed frame; 7. Rotating shaft rod; 8. Protective plate; 9. Gear; 10. Electric push rod; 11. Rack; 12. Shielding plate; 13. Damper; 14. Spring 1; 15. U-shaped plate; 16. Fixed rod; 17. Slider; 18. Spring 2; 19. Support rod. DETAILED DESCRIPTION

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0024] Reference Figure 1-4 As shown, the utility model provides a noise reduction device for an air source heat pump, which solves the problem that the noise reduction method adopted by the existing air source heat pump unit proposed in the above background technology has a certain noise reduction effect, but the noise reduction effect is limited.

[0025] To achieve the above-mentioned purpose, a noise reduction device for an air source heat pump comprises an air source heat pump external machine body 1, a shielding member is provided on the top of the air source heat pump external machine body 1, a buffer mechanism is provided between the shielding member and the air source heat pump external machine body 1, wherein a heat dissipation air inlet is provided on the rear surface and the side surface of the air source heat pump external machine body 1, an air outlet is provided on the front surface thereof, and a heat dissipation component is provided inside;

[0026] A soundproof box 2 is fixedly installed in the main body 1 of the air source heat pump outer unit, a compressor body 3 is fixedly installed inside the soundproof box 2, and a soundproof cover 4 covering the outer surface of the compressor body 3 is fixedly installed on the inner bottom wall of the soundproof box 2;

[0027] A noise reduction rubber plate 5 is fixedly installed on the inner wall of the sound insulation cover 4, and a protective mechanism is provided on the surface of the air source heat pump external unit body 1 and at the exhaust end, wherein the material of the noise reduction rubber plate 5 is composed of butadiene rubber with fillers or additives having sound absorption or sound insulation functions added thereto, and the fillers or additives generally include sound absorbing particles, fiber materials, damping materials, etc., which can effectively absorb the vibration energy generated by the compressor body 3 and convert it into heat energy, thereby reducing the propagation and reflection of noise.

[0028] The utility model provides a noise reduction device for an air source heat pump. When in use, a shielding member is provided to shield the top of an air source heat pump outer machine body 1 to prevent debris from falling and causing damage to the air source heat pump outer machine body 1, and a buffer mechanism is used to buffer the impact force of debris falling on the shielding member. A protective mechanism is provided to facilitate closing and protecting the exhaust end of the air source heat pump outer machine body 1 to prevent rainwater from entering the body through the exhaust end and affecting use when the air source heat pump outer machine body 1 is not in operation. During the operation of the air source heat pump outer machine body 1, under the action of the sound insulation cover 4 and the noise reduction rubber plate 5 on its inner wall, the sound generated by the operation of the compressor body 3 can be absorbed, so that the sound source of the compressor body 3 is isolated inside the sound insulation box 2, thereby achieving the effect of noise reduction, isolating the propagation of noise, greatly reducing the noise caused by high frequency and low frequency, and avoiding the situation where only relying on sound insulation cotton for noise reduction easily causes limited noise reduction effect, thereby effectively improving the noise reduction effect and the quality of life of surrounding personnel.

[0029] Furthermore, the protective mechanism includes a fixed frame 6 fixedly mounted on the surface of the air source heat pump outer unit body 1 and located at the exhaust end, a plurality of rotating shaft rods 7 extending through and rotatably connected to the inner walls of the fixed frame 6, a protective plate 8 fixedly mounted on the surface of the rotating shaft rods 7, and a rotating component provided on one side of the fixed frame 6 for rotating the rotating shaft rods 7.

[0030] The rotating component is composed of a gear 9 fixedly connected to one end of the rotating shaft rod 7, a power member arranged on the surface of the air source heat pump outer machine body 1, and a rack 11 arranged at the output end of the power member and meshing with the gear 9.

[0031] The power part is composed of a fixed block fixedly mounted on the surface of the air source heat pump outer machine body 1 and located on one side of the fixed frame 6 and an electric push rod 10 fixedly mounted on the bottom of the fixed block. The rack 11 is fixedly mounted on the output end of the electric push rod 10.

[0032] Specifically, when the air source heat pump outdoor unit body 1 is not running, the electric push rod 10 drives the rack 11 to move down, and the rack 11 drives the gear 9 meshing with it to rotate, thereby driving the rotating shaft rod 7 to rotate, so that the protective plate 8 rotates ninety degrees, and the exhaust end is closed for protection, which can reduce dust adhesion to the mesh cover of the exhaust end, and prevent rainwater from entering the interior of the air source heat pump outdoor unit body 1 through the exhaust end, affecting the use of its internal parts. On the contrary, when it is running, it is opened for ventilation. At the same time, when the air source heat pump outdoor unit body 1 is ventilated and dissipated, the opening angle of the protective plate 8 can be automatically adjusted (between 30-90°) according to the change in the fan speed. If the fan speed is the minimum, the opening angle of the protective plate 8 is 30°, and when the fan speed is the maximum, the protective plate 8 is fully opened (and opened at 90°), thereby reducing the noise propagation inside the air source heat pump outdoor unit body 1 and the fan.

[0033] Furthermore, the shielding member is composed of a shielding plate 12 disposed above the top of the air source heat pump outer unit body 1.

[0034] Specifically, by providing the shielding plate 12 , rainwater and debris can be shielded to avoid affecting the air source heat pump outer unit main body 1 , thereby ensuring the use effect of the air source heat pump outer unit main body 1 .

[0035] Furthermore, the buffer mechanism includes a damper 13 fixedly installed at the top center of the air source heat pump outdoor unit body 1, a spring 14 sleeved on the surface of the damper 13, and an auxiliary component arranged on the top of the air source heat pump outdoor unit body 1. The top of the damper 13 is connected to the baffle plate 12, and the two ends of the spring 14 are respectively connected to the baffle plate 12 and the air source heat pump outdoor unit body 1.

[0036] The auxiliary components are composed of a U-shaped plate 15 symmetrically fixedly installed on both sides of the top of the air source heat pump outdoor unit body 1, a fixed rod 16 fixedly installed between the inner walls of the U-shaped plate 15, two sliders 17 symmetrically slidably connected to the surface of the fixed rod 16, a spring 18 sleeved on the surface of the fixed rod 16 and connected to the two sliders 17 at both ends, and a support rod 19 hinged at the top of the slider 17 and one end of which is hinged to the shielding plate 12.

[0037] Specifically, when debris falls on the shielding plate 12, the shielding plate 12 is subjected to force to push the damper 13 downward and compress the spring 14. The damper 13 and the spring 14 cooperate to buffer the impact force. At the same time, the shielding plate 12 is pressed downward to hinge the support rod 19, and the two sliders 17 are driven by the support rod 19 to slide relatively along the surface of the fixed rod 16 to compress the spring 2 18. The elastic potential energy of the spring 2 18 can further assist in buffering the impact force, thereby achieving the effect of buffering the impact force received by the shielding plate 12 and preventing the shielding plate 12 from being damaged.

[0038] Working principle: When in use, a shielding member can be set to shield the top of the air source heat pump external unit main body 1 to prevent debris from falling and causing damage to the air source heat pump external unit main body 1, and the buffer mechanism can easily buffer the impact force of the shielding member caused by the falling debris. By setting a protective mechanism, the exhaust end of the air source heat pump external unit main body 1 can be closed and protected to prevent rainwater from entering the body through the exhaust end and affecting its use. During the operation of the air source heat pump external unit main body 1, under the action of the sound insulation cover 4 and the noise reduction rubber plate 5 on its inner wall, the sound generated by the compressor body 3 during operation can be absorbed, so that the source of the compressor body 3 is isolated inside the sound insulation box 2, thereby achieving the effect of noise reduction.

[0039] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A noise reduction device for an air source heat pump, characterized in that: It comprises an air source heat pump external machine body (1), a shielding member is provided on the top of the air source heat pump external machine body (1), and a buffer mechanism is provided between the shielding member and the air source heat pump external machine body (1); A soundproof box (2) is fixedly installed inside the air source heat pump external unit body (1), a compressor body (3) is fixedly installed inside the soundproof box (2), and a soundproof cover (4) covering the outer surface of the compressor body (3) is fixedly installed on the inner bottom wall of the soundproof box (2); A noise reduction rubber plate (5) is fixedly mounted on the inner wall of the soundproof cover (4), and a protective mechanism is provided on the surface of the air source heat pump outer unit body (1) at the exhaust end.

2. The noise reduction device for an air source heat pump according to claim 1, characterized in that: The protection mechanism comprises a fixed frame (6) fixedly mounted on the surface of the air source heat pump outer unit body (1) and located at the exhaust end, a plurality of rotating shafts (7) penetrating and rotatably connected between the inner walls of the fixed frame (6), a protection plate (8) fixedly mounted on the surface of the rotating shafts (7), and a rotating component provided on one side of the fixed frame (6) and used to rotate the rotating shafts (7).

3. The noise reduction device for an air source heat pump according to claim 2, characterized in that: The rotating component is composed of a gear (9) fixedly connected to one end of a rotating shaft rod (7), a power member arranged on the surface of the air source heat pump outer unit body (1), and a rack (11) arranged at the output end of the power member and meshing with the gear (9).

4. The noise reduction device for an air source heat pump according to claim 3, characterized in that: The power component is composed of a fixed block fixedly mounted on the surface of the air source heat pump outer unit body (1) and located on one side of the fixed frame (6), and an electric push rod (10) fixedly mounted on the bottom of the fixed block, and the rack (11) is fixedly mounted on the output end of the electric push rod (10).

5. The noise reduction device for an air source heat pump according to claim 1, characterized in that: The shielding member is composed of a shielding plate (12) arranged above the top of the air source heat pump outer unit body (1).

6. The noise reduction device for an air source heat pump according to claim 5, characterized in that: The buffer mechanism comprises a damper (13) fixedly mounted at the top center of an air source heat pump external unit body (1), a spring (14) sleeved on the surface of the damper (13), and an auxiliary component arranged on the top of the air source heat pump external unit body (1); the top of the damper (13) is connected to a baffle plate (12), and the two ends of the spring (14) are respectively connected to the baffle plate (12) and the air source heat pump external unit body (1).

7. The noise reduction device for an air source heat pump according to claim 6, characterized in that: The auxiliary component is composed of a U-shaped plate (15) symmetrically fixedly mounted on both sides of the top of the air source heat pump external unit body (1), a fixed rod (16) fixedly mounted between the inner walls of the U-shaped plate (15), two sliders (17) symmetrically slidably connected to the surface of the fixed rod (16), a spring (18) sleeved on the surface of the fixed rod (16) and connected to the two sliders (17) at both ends, and a support rod (19) hinged to the top of the slider (17) and one end of which is hinged to the shielding plate (12).

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