Heat pump noise reduction device

Abstract

The utility model relates to the technical field of noise reduction devices, and provides a heat pump noise reduction device which comprises a noise reduction box and a plurality of noise reduction plates, a plurality of installation frames used for installing the noise reduction plates are arranged in the noise reduction box, each installation frame comprises an open frame and a closed frame side rod capable of resetting by means of gravity, and the closed frame side rods are located at the top of the open frame. The noise reduction plate is located between the open frame and the closed frame edge rod 32, and the open frame is provided with an installation groove for the noise reduction plate to be embedded in. The problem that the mounting frame needs to be disassembled and assembled when the sound-absorbing cotton is replaced in the prior art is solved, and the replacement efficiency of the sound-absorbing cotton (the noise reduction plate) is improved.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction device technology, specifically to a heat pump noise reduction device. Background Technology

[0002] Heat pump noise reduction devices are generally designed to reduce the noise generated by heat pump units during operation. The noise of heat pump units mainly comes from components such as compressors, fans, water pumps, and pipe vibrations. This noise not only affects the comfort of the surrounding environment but may also have a negative impact on people's health.

[0003] Currently, common heat pump noise reduction devices typically include sound-absorbing cotton (noise reduction panels) to reduce noise. However, for environmental reasons, the sound-absorbing cotton used in heat pump noise reduction devices is usually made of polyester fiber. But polyester fiber sound-absorbing cotton has relatively poor high-temperature resistance, making it susceptible to aging due to the temperature generated by the heat pump unit, thus affecting its sound absorption performance. Therefore, the sound-absorbing cotton needs to be replaced after a period of use. The installation of the sound-absorbing cotton requires an additional mounting frame and several bolts to secure it inside the noise reduction device. This means that replacing the sound-absorbing cotton involves disassembling and reassembling the mounting frame, resulting in low replacement efficiency. Utility Model Content

[0004] This utility model proposes a heat pump noise reduction device, which solves the problem in related technologies that the installation frame still needs to be disassembled and reassembled when replacing sound-absorbing cotton, thereby improving the replacement efficiency of sound-absorbing cotton (noise reduction board).

[0005] The technical solution of this utility model is as follows:

[0006] A heat pump noise reduction device includes a noise reduction box and several noise reduction plates. The noise reduction box is provided with several mounting frames for installing the noise reduction plates. The mounting frame includes an open frame and a closed frame side rod that can be reset by gravity. The closed frame side rod is located at the top of the open frame. The noise reduction plate is located between the open frame and the closed frame side rod. The open frame is provided with a mounting groove for embedding the noise reduction plate.

[0007] Furthermore, the projection surface of the open frame on the vertical horizontal plane is a "U" shaped structure, and the closed frame side rod is rotatably connected to the open frame.

[0008] Furthermore, the closed frame side bar is provided with a mating groove for embedding the noise reduction plate.

[0009] Furthermore, the length of the projection surface of the mounting groove on the horizontal plane is less than the length of the projection surface of the mating groove on the horizontal plane.

[0010] Furthermore, the noise reduction box includes a box body and a box cover, the box body and the box cover are detachably connected, and the end of the closed frame side rod away from the open frame abuts against the box cover.

[0011] Furthermore, the housing is provided with several fixing slots for assembling and installing the frame, and the projection surface of the open frame on the vertical horizontal plane coincides with the projection surface of the fixing slot on the vertical horizontal plane.

[0012] Furthermore, the box cover is provided with several clearance grooves for avoiding the side bars of the closed frame, and the end of each side bar of the closed frame away from the open frame abuts against the bottom of the clearance groove.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] 1. The mounting frame inside the noise reduction box of this utility model for installing the noise reduction plate is different from the traditional mounting frame. It mainly includes an open frame and a closed frame side bar. The noise reduction plate is located between the open frame and the closed frame side bar. That is, through the cooperation between the closed frame side bar and the open frame, the two form a frame structure to complete the fixing of the noise reduction plate located between the two.

[0015] 2. In this utility model, the closed frame side rod is located at the top of the open frame and can be reset by gravity. Thus, when the noise reduction plate is replaced, the staff only needs to apply a force to pull the closed frame side rod open on the mounting frame and then insert the noise reduction plate to complete the replacement work. There is no need to manually operate the closed frame side rod to reset it and fix it in the designated position, which greatly improves the replacement efficiency of the noise reduction plate.

[0016] 3. The open frame in this utility model is provided with an installation groove for embedding the noise reduction plate, that is, the connection between the noise reduction plate and the installation frame is completed by snap-fit, which effectively ensures the installation strength and installation stability of the noise reduction plate in this utility model. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0019] Figure 2 for Figure 1 A sectional view;

[0020] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 This is a structural diagram of the embodiment without a lid;

[0022] Figure 5 This is a schematic diagram of the mounting frame in this embodiment.

[0023] In the picture:

[0024] 1. Noise reduction box; 11. Box body; 111. Fixing groove; 12. Box cover; 121. Clearance groove; 2. Noise reduction plate; 3. Mounting frame; 31. Open frame; 311. Mounting groove; 32. Closed frame side bar; 321. Mating groove. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1 , Figure 4 As shown, this embodiment proposes a heat pump noise reduction device, which mainly includes a noise reduction box 1 and several noise reduction plates 2. The noise reduction box 1 is provided with several mounting frames 3 for installing the noise reduction plates 2. The noise reduction box 1 has an air inlet pipe and an air outlet pipe so that it can be used in conjunction with the air outlet of the heat pump unit in this embodiment.

[0027] The mounting frame 3 includes an open frame 31 and a closed frame side bar 32 that can be reset by gravity. The noise reduction plate 2 is located between the open frame 31 and the closed frame side bar 32. That is, in this embodiment, the frame structure formed by the cooperation of the open frame 31 and the closed frame side bar 32 completes the fixing of the noise reduction plate 2.

[0028] Specifically, the closed frame side bar 32 is located at the top of the open frame 31 and is rotatably connected to the open frame 31. That is, the closed frame side bar 32 is flipped and positioned at the top of the open frame 31. By flipping the closed frame side bar 32, the frame structure used to install the noise reduction plate 2 is transformed into an open structure, allowing workers to remove the noise reduction plate 2 from the installation frame 3 and insert a new noise reduction plate 2, thus completing the replacement of the noise reduction plate 2. During this process, workers only need to apply a force to pull open the closed frame side bar 32 and perform the action of replacing the noise reduction plate 2 to complete the replacement. Due to the flipping angle, when the closed frame side bar 32 loses the force acting on it after flipping (when the worker no longer holds the closed frame side bar 32), it can reset under the action of gravity. If necessary, the reset work of the closed frame side bar 32 can be accelerated or completed by simply pushing it. Compared with traditional installation frames, this eliminates the step of re-fixing the installation frame 3, effectively improving the replacement efficiency of the noise reduction plate 2.

[0029] Meanwhile, considering that the closed frame side bar 32 will impact and collide with the open frame 31 during the reset process, in order to reduce the impact force generated by the closed frame side bar 32 during the reset process, the mounting frame 3 is preferably made of a material with low hardness such as high temperature resistant plastic, so as to effectively reduce the instantaneous impact force generated by the closed frame side bar 32 contacting the open frame 31 during the reset process.

[0030] like Figures 4-5 As shown, the open frame 31 in this embodiment is provided with a mounting groove 311 for embedding the noise reduction plate 2. That is, the noise reduction plate 2 is fixed to the mounting frame 3 by snap-fitting, which not only ensures the installation strength and stability of the noise reduction plate 2, but also completes the installation of the noise reduction plate 2 without the need for additional fixing structures. Therefore, there is no need to operate these additional fixing structures when replacing the noise reduction plate 2. At the same time, the mounting groove 311 passes through one end of the open frame 31 close to the side bar 32 of the closed frame, so that when the noise reduction plate 2 is replaced, the staff can directly pull the noise reduction plate 2 out of the open frame 31 or insert a new noise reduction plate 2 into the open frame 31, thereby further improving the replacement efficiency of the noise reduction plate 2.

[0031] Furthermore, in order to ensure that each side wall of the inner ring of the mounting frame 3 can be interlocked with each surface of the noise reduction plate 2, the closed frame side rod 32 is provided with a mating groove 321 for the noise reduction plate 2 to be embedded, which, together with the mounting groove 311 on the open frame 31, further improves the installation strength and installation stability of the noise reduction plate 2 in this embodiment.

[0032] Although the noise reduction panel 2 (polyester fiber sound-absorbing cotton) has a certain degree of elasticity and can deform and adapt to the mating groove 321 located on the closed frame side bar 32 during the flipping process, the noise reduction panel 2 is prone to bending during this process, resulting in a reduction in the noise reduction cross-sectional area formed by the noise reduction panel 2, thus affecting the noise reduction effect. Therefore, as... Figure 3 As shown, in this embodiment, the length of the projection surface of the mounting groove 311 on the horizontal plane is less than the length of the projection surface of the mating groove 321 on the horizontal plane. That is, the mounting groove 311 restricts the movement of the noise reduction plate 2 in the "X" and "Y" axis directions, while the mating groove 321 only restricts the movement of the noise reduction plate 2 in the "Y" axis direction. This prevents the closed frame side rod 32 from contacting the noise reduction plate 2 during the flipping process, thereby preventing the noise reduction plate 2 from deforming due to the reset of the closed frame side rod 32 and ensuring the structural stability of each noise reduction plate 2 in this embodiment.

[0033] At the same time, such as Figures 1-2 As shown, the noise reduction box 1 in this embodiment includes a box body 11 and a box cover 12. The box body 11 and the box cover 12 are detachably connected. Preferably, the box cover 12 is detachably connected to the box body 11 by means of bolts or other threaded structures to ensure the connection strength between the two.

[0034] The end of the closed frame side bar 32 away from the open frame 31 abuts against the box cover 12. That is, after the box cover 12 is fixed on the box body 11, the movement of the closed frame side bar 32 can be constrained by the abutting relationship between the box cover 12 and the closed frame side bar 32. This can not only fix the box cover 12 itself, but also fix the noise reduction plate 2 that cooperates with the mounting frame 3. This achieves two goals at once and effectively prevents the mounting frame 3 from deforming during the operation of this embodiment, thus improving the operational stability of this embodiment.

[0035] Considering that the box cover 12 and the closed frame side bar 32 will both give the opening frame 31 a vertical load, the opening frame 31 is designed as a "U" shaped structure, that is, the projection surface of the opening frame 31 on the vertical horizontal plane is a "U" shaped structure. This allows the opening frame 31 to improve its bending resistance and effectively disperse stress by means of the "U" shaped structure, thus ensuring the structural stability of the opening frame 31 itself.

[0036] The housing 11 is provided with several fixing slots 111 for assembling the mounting frame 3. The open frame 31 is fixedly installed in the fixing slots 111. Preferably, the open frame 31 is fixed using bolts or other threaded structures, allowing for replacement if the open frame 31 (mounting frame 3) is damaged. The projection plane of the open frame 31 on the vertical horizontal plane coincides with the projection plane of the fixing slots 111 on the vertical horizontal plane. That is, the open frame 31 is located between the inner and outer walls of the housing 11, ensuring that the noise-reducing plate 2, which cooperates with the mounting frame 3, can fully cover the airflow path inside the noise-reducing box 1, thereby reducing noise-reducing dead zones inside the housing 11.

[0037] Correspondingly, the lid 12 is provided with several clearance grooves 121 to avoid the closed frame side rods 32. By hiding the closed frame side rods 32 in the lid 12, the closed frame side rods 32 are prevented from being located in the airflow path inside the noise reduction box 1, thereby avoiding the existence of noise reduction dead zones inside the noise reduction box 1. The end of each closed frame side rod 32 away from the opening frame 31 abuts against the bottom of the clearance groove 121, ensuring a normal abutment relationship between the closed frame side rod 32 and the lid 12.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat pump noise reduction device, comprising a noise reduction box (1) and a plurality of noise reduction plates (2), wherein the noise reduction box (1) is provided with a plurality of mounting frames (3) for mounting the noise reduction plates (2), characterized in that, The mounting frame (3) includes an open frame (31) and a closed frame side bar (32) that can be reset by gravity. The closed frame side bar (32) is located at the top of the open frame (31). The noise reduction plate (2) is located between the open frame (31) and the closed frame side bar (32). The open frame (31) is provided with a mounting groove (311) for embedding the noise reduction plate (2).

2. The heat pump noise reduction apparatus of claim 1, wherein, The projection surface of the open frame (31) on the vertical horizontal plane is a "U" shaped structure, and the closed frame side rod (32) is rotatably connected to the open frame (31).

3. The heat pump noise reduction apparatus according to claim 1 or 2, characterized in that, The closed frame side bar (32) is provided with a mating groove (321) for the noise reduction plate (2) to be embedded.

4. The heat pump noise reduction apparatus of claim 3, wherein, The length of the projection surface of the mounting groove (311) on the horizontal plane is less than the length of the projection surface of the mating groove (321) on the horizontal plane.

5. The heat pump noise reduction apparatus of claim 3, wherein, The noise reduction box (1) includes a box body (11) and a box cover (12). The box body (11) and the box cover (12) are detachably connected. The end of the closed frame side rod (32) away from the open frame (31) abuts against the box cover (12).

6. The heat pump noise reduction apparatus of claim 5, wherein, The box (11) is provided with a number of fixing slots (111) for assembling the mounting frame (3), and the projection surface of the open frame (31) on the vertical horizontal plane coincides with the projection surface of the fixing slot (111) on the vertical horizontal plane.

7. The heat pump noise reduction apparatus of claim 6, wherein, The box cover (12) is provided with several clearance grooves (121) for avoiding the closed frame side rods (32), and the end of each closed frame side rod (32) away from the open frame (31) abuts against the bottom of the clearance groove (121).

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