Compressor noise reduction structure and heat pump unit

Abstract

The utility model belongs to the technical field of electric appliances, and particularly relates to a compressor noise reduction structure connected with a heat pump unit, the compressor noise reduction structure comprises a cover body, the cover body is provided with a press cavity, the press cavity is used for placing a compressor of the heat pump unit, and one side of the cover body is provided with a connecting opening communicated with the press cavity; the side, provided with the connecting opening, of the cover body is used for being connected with the middle partition plate of the heat pump unit, and the connecting opening is closed through the middle partition plate, so that the cover body is matched with the middle partition plate to conduct noise reduction on the compressor, that is, one side plate can be omitted at the position of the middle partition plate, the material consumption of the cover body is effectively reduced, and the cost and the weight of the cover body are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical appliances, and particularly relates to a compressor noise reduction structure and a heat pump unit. BACKGROUND

[0002] The noise of an air source heat pump unit mainly comes from a compressor, and therefore, reducing the noise of the heat pump unit is extremely important for noise reduction of the heat pump unit.

[0003] At present, a common compressor noise reduction mode is to provide a soundproof cover on the outer cover of the compressor, and the soundproof cover is made of metal or other solid materials to ensure its durability and effectiveness, which leads to a higher cost and a relatively heavier weight of the soundproof cover. CONTENT OF THE UTILITY MODEL

[0004] The application provides a compressor noise reduction structure and a heat pump unit to solve the problem of a higher cost and a relatively heavier weight of the existing soundproof cover.

[0005] In a first aspect, the application provides a compressor noise reduction structure, which comprises a cover body, a compressor cavity is arranged on the cover body, the compressor cavity is used for placing a compressor of a heat pump unit, a connecting opening in communication with the compressor cavity is arranged on one side of the cover body, and the cover body is provided with the connecting opening on one side for connecting with a middle partition plate of the heat pump unit and closing the connecting opening through the middle partition plate.

[0006] In a possible design, the cover body comprises:

[0007] a first side plate used for connecting with the middle partition plate;

[0008] a second side plate, one side of which is connected with the first side plate away from the middle partition plate, and the other side of which is used for connecting with the middle partition plate;

[0009] a top cover connected with the top of the first side plate and the second side plate to jointly form the compressor cavity together with the first side plate and the second side plate.

[0010] In a possible design, the first side plate is provided with a first flange and a second flange on opposite sides thereof, the first flange is used for connecting with the middle partition plate, and the second flange is connected with the second side plate.

[0011] In a possible design, the second side plate is provided with a third flange, and the third flange is used for connecting with the middle partition plate.

[0012] In a possible design, the top cover comprises a first flexible soundproof layer.

[0013] In a possible design, the top cover further comprises a top plate, one side of the top plate is provided with a fourth flange, and the other side is provided with a clamping portion, the fourth flange extends to the outside of the second side plate and is connected with the second side plate, and the first side plate is provided with a clamping groove matched with the clamping portion.

[0014] The first flexible sound insulation layer is located on the side of the top plate away from the compressor.

[0015] In a possible design, the top plate is provided with at least one avoiding gap for the pipeline connected to the compressor to pass through, and the first flexible sound insulation layer is provided with a through hole for the pipeline to pass through.

[0016] The at least one avoiding gap is located above the first side plate, the first side plate is provided with a fifth flange, the fifth flange is parallel to the top cover, and the fifth flange extends to below the avoiding gap or into the avoiding gap, so as to reduce the area of the avoiding gap when the top plate is connected with the first side plate.

[0017] In a possible design, the compressor noise reduction structure further comprises a second flexible sound insulation layer located in the compressor cavity, the second flexible sound insulation layer is used to fit on the first side plate, the second side plate and the middle partition plate, and the second flexible sound insulation layer is used to be arranged at the bottom of the compressor, so that the second flexible sound insulation layer forms a sound insulation chamber with a top opening outside the compressor.

[0018] In a possible design, the second flexible sound insulation layer comprises a rubber layer and a sound insulation cotton layer arranged in layers.

[0019] In a second aspect, the application provides a heat pump unit, comprising a compressor, a middle partition plate and the compressor noise reduction structure of any one of the first aspect, the cover body of the compressor noise reduction structure covers the compressor and is connected with the middle partition plate, and the cover body has a gap with the compressor.

[0020] In the compressor noise reduction structure and the heat pump unit provided by the application, the cover body is provided, the compressor cavity is arranged on the cover body, the connecting opening is arranged on one side of the cover body, the side of the cover body provided with the connecting opening is connected with the middle partition plate of the heat pump unit, the connecting opening is sealed by the middle partition plate, and the compressor cavity is closed. When the compressor placed in the compressor cavity is running, the cover body and the middle partition plate can achieve a good noise reduction effect. In addition, compared with the existing sound insulation cover, the side adjacent to the middle partition plate does not need to be provided with a side plate, the amount of material used by the cover body can be reduced, the cost of the cover body is reduced, the amount of material used by the cover body is reduced, the weight is also reduced accordingly, and in addition, the cover body replaces a side plate through the middle partition plate, so that the space occupied by the cover body is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0022] Figure 1 A partial structural schematic diagram of a heat pump unit provided for an embodiment of the application;

[0023] Figure 2 A structural schematic diagram of a compressor noise reduction structure provided for an embodiment of the application;

[0024] Figure 3 A structural schematic diagram of a compressor noise reduction structure provided for an embodiment of the application without assembling a first flexible sound insulation layer;

[0025] Figure 4 A structural schematic diagram of an enlarged structure in the circle in FIG. 1; Figure 3

[0026] Figure 5 A structural schematic diagram of a first side plate of a compressor noise reduction structure provided for an embodiment of the application;

[0027] Figure 6 A structural schematic diagram of a second side plate of a compressor noise reduction structure provided for an embodiment of the application;

[0028] Figure 7 A structural schematic diagram of a top plate of a compressor noise reduction structure provided for an embodiment of the application.

[0029] REFERENCE NUMERALS:

[0030] 10 - shell, 20 - middle partition plate, 30 - compressor, 40 - plate exchange support, 100 - cover body, 110 - first side plate, 111 - first flange, 112 - second flange, 113 - fifth flange, 114 - clamping groove, 115 - bearing part, 120 - second side plate, 121 - third flange, 130 - top cover, 131 - first flexible sound insulation layer, 132 - top plate, 1321 - fourth flange, 1322 - avoiding gap, 1323 - clamping part, 200 - second flexible sound insulation layer.

[0031] The specific embodiments have been shown and described in the foregoing drawings and specification, it being understood that these are presented by way of example only and are not intended to limit the scope of the application, which is defined by the appended claims. It will be appreciated by those of ordinary skill in the art that variations in these embodiments can be made and that it is intended that the application encompass these alterations. DETAILED DESCRIPTION

[0032] ​In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0033] The common noise reduction methods of the compressor of the heat pump unit mainly include the following two methods.

[0034] One method is to wrap two layers of cotton on the compressor, one layer of cotton is wrapped on the cylinder body of the compressor, which is called inner cotton of the compressor, and the other layer of cotton is wrapped on the outer side of the compressor, which is called outer cotton of the compressor, and then a top cotton is used to wrap the top of the compressor, and the top cotton and the outer cotton of the compressor are mostly adhered by magic tape. After the cotton is wrapped, a relatively closed cavity is formed, and the noise reduction of the compressor is performed. However, the noise reduction effect of this method is usually limited.

[0035] Another method is to wrap the compressor with a metal soundproof cover. However, due to the limitation of the internal space of the heat pump unit, the metal soundproof cover will basically contact and interfere with the components beside the compressor. The installation and fixing operation of this metal soundproof cover is difficult, and various components inside the machine will block the installation and maintenance of the metal soundproof cover.

[0036] In order to avoid the above problems, the present application provides a compressor noise reduction structure. A cover body is provided, a compressor cavity is arranged on the cover body, a connecting opening is arranged on one side of the cover body, and the side of the cover body provided with the connecting opening is connected with a partition plate of the heat pump unit. The connecting opening is sealed by the partition plate, so as to close the compressor cavity. When the compressor placed in the compressor cavity operates, the cover body and the partition plate can play a good noise reduction effect. In addition, compared with the existing soundproof cover, the side adjacent to the partition plate does not need to be provided with a side plate, which can reduce the amount of material used by the cover body, reduce the cost of the cover body, and reduce the weight of the cover body due to the reduction of the amount of material. In addition, the cover body replaces a side plate through the partition plate, which can also reduce the space occupied by the cover body.

[0037] The technical scheme of the present application and how the technical scheme of the present application solves the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can exist independently or can be combined with each other. The same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below in combination with the drawings.

[0038] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3As shown, the heat pump unit is consistent with the existing heat pump unit structure, and includes a shell 10, a compressor 30, a partition plate 20, and a plate exchange support 40, and the like.

[0039] Among them, the partition plate 20 is arranged in the shell 10, and separates the compressor 30 and the heat exchanger. The plate exchange support 40 is located on the side of the compressor 30 away from the partition plate 20. The difference of the heat pump unit of the embodiment is that it further includes a compressor 30 noise reduction structure. The compressor 30 noise reduction structure is connected with the partition plate 20 and covers the compressor 30, so as to play a better noise reduction effect when the compressor 30 is running.

[0040] In the following, the compressor 30 noise reduction structure will be described in detail in combination with specific embodiments.

[0041] In some embodiments, as shown in Figure 1 and Figure 2 , the compressor noise reduction structure includes a cover body 100, the cover body 100 is provided with a compressor cavity for accommodating the compressor 30. The cover body 100 is provided with a connecting opening communicating with the compressor cavity on the side adjacent to the partition plate 20, and the cover body 100 is connected with the partition plate 20 on the side of the connecting opening, and the connecting opening is closed by the partition plate 20.

[0042] Specifically, the bottom of the compressor cavity and the side corresponding to the connecting opening are open. When the cover body 100 is installed in the heat pump unit, the cover body 100 can be covered outside the compressor 30 from top to bottom, that is, the compressor 30 is put into the compressor cavity, and then the cover body 100 is connected with the partition plate 20 on the side of the connecting opening, so as to close the connecting opening by the partition plate 20. The cover body 100 can be a sheet metal part or other hard material that can soundproof, so as to effectively reduce the running noise of the compressor 30.

[0043] Compared with the existing compressor 30 soundproof cover, the cover body 100 can reduce one side plate, so that the cover body 100 can reduce the material usage by nearly one quarter, and the weight is also greatly reduced. The cost of adding the compressor noise reduction structure to the heat pump unit can be effectively reduced. At the same time, the cover body 100 reduces one side plate, and after being replaced by the partition plate 20, the space required is also reduced, which facilitates the installation of the cover body 100.

[0044] In some embodiments, as shown in Figure 3 , Figure 4 , the cover body 100 includes a first side plate 110, a second side plate 120, and a top cover 130.

[0045] The first side plate 110 and the second side plate 120 are connected to each other and extend along a vertical direction, and the first side plate 110 and the second side plate 120 are connected to the middle plate 20 through common connection modes such as bolts on the side away from each other. The top cover 130 is connected to the top of the first side plate 110 and the second side plate 120, and is spliced with the first side plate 110 and the second side plate 120 to form a press chamber.

[0046] The first side plate 110 is an L-shaped plate, which includes a first connecting plate and a second connecting plate perpendicular to each other. The first connecting plate and the second connecting plate can be integrally formed or separately formed and then connected through common connection modes such as bolts or welding, which is not limited in the embodiment.

[0047] Further, as shown in Figure 5 The first side plate 110 is provided with a first flange 111 and a second flange 112 on the opposite sides, respectively. The first flange 111 is used to connect with the middle plate 20, and the second flange 112 is connected with the second side plate 120.

[0048] Specifically, the first flange 111 is parallel to the middle plate 20. In assembly, the first flange 111 is attached to the surface of the middle plate 20, and a first connecting hole is formed on the first flange 111 and the middle plate 20. A bolt is inserted into the first connecting hole to lock the first flange 111 on the middle plate 20.

[0049] This way can effectively increase the contact area between the first side plate 110 and the middle plate 20, improve the connection strength between them, and also facilitate the screwing of the bolt to fix the first side plate 110 and the middle plate 20.

[0050] At the same time, the second flange 112 is parallel to the second side plate 120. A second connecting hole is formed on the second flange 112 and the second side plate 120. In assembly, the second side plate 120 is attached to the second flange 112, and then a bolt is screwed into the second connecting hole to connect the second side plate 120 and the second flange 112. This can not only increase the contact area between the second side plate 120 and the first side plate 110 and improve the connection strength, but also facilitate the assembly of the second side plate 120 and the first side plate 110.

[0051] In addition, the first side plate 110 is provided with the first flange 111 and the second flange 112, which also helps to improve the strength of the first side plate 110.

[0052] Further, as shown in Figure 6 The second side plate 120 is provided with a third flange 121 for connecting with the middle plate 20.

[0053] Specifically, the third flange 121 is parallel to the partition plate 20, and a third connecting hole can be arranged on the third flange 121 and the partition plate 20 correspondingly. When assembling, the third flange 121 can be attached to the partition plate 20, and then the bolt is screwed into the third connecting hole to realize the connection between the second side plate 120 and the partition plate 20, thereby improving the connection strength and the strength of the second side plate 120.

[0054] It can be understood that the first flange 111, the third flange 121, and the second flange 112 can also be connected by other common methods, and the above embodiments are only illustrative and not limited thereto.

[0055] In some embodiments, referring to Figure 2 As shown, the top cover 130 includes a first flexible sound insulation layer 131. The top cover 130 includes the first flexible sound insulation layer 131, which can better seal the gap between the pipe and the pipe when the pipe passes through, thereby improving the noise reduction effect, relative to the sheet metal piece.

[0056] Further, referring to Figure 3 , Figure 4 and Figure 7 In order to improve the noise reduction effect, the top cover 130 further includes a top plate 132, which can be made of sheet metal or other hard sound insulation materials.

[0057] The top plate 132 is connected to the top of the first side plate 110 and the second side plate 120, and the first flexible sound insulation layer 131 is fixed to the top of the top plate 132 for easy installation and sealing the gap between the pipe and the pipe through the first flexible sound insulation layer 131, thereby improving the noise reduction effect.

[0058] In some embodiments, the top plate 132 has a fourth flange 1321 on one side and a clamping portion 1323 on the other side. The fourth flange 1321 extends to the outside of the second side plate 120 and is parallel to the second side plate 120 and attached to the outside of the second side plate 120. The second side plate 120 is connected, for example, by common methods such as bolts or welding. The first side plate 110 has a clamping groove 114 that matches the clamping portion 1323.

[0059] Specifically, the first connecting section of the first side plate 110 is arranged opposite to the second side plate 120, the second connecting section connects the first connecting section and the second side plate 120, one side of the top cover 130 is connected to the first connecting section, and the other side is connected to the second side plate 120, so that the top cover 130 can be fixed on the first side plate 110 and the second side plate 120.

[0060] Meanwhile, the first connecting section is located at the inner side of the shell 10 and is shielded by other components such as pipelines, and when the compressor noise reduction structure is installed on the heat pump unit, if the connection is made by bolts or the like, the operation is difficult, and by cooperating the clamping portion 1323 with the clamping groove 114, the installation difficulty can be effectively reduced and the operation process can be saved.

[0061] Exemplarily, a protruding portion is arranged at the top of the first connecting section, and the clamping groove 114 is arranged on the protruding portion, and meanwhile, a bearing portion 115 can also be arranged at the top of the first connecting section, the bearing portion 115 is parallel to the top plate 132, and when assembled, the top plate 132 is overlapped on the bearing portion 115, and the clamping portion 1323 is inserted into the clamping groove 114 for limiting, so as to improve the supporting effect of the first side plate 110 on the top plate 132.

[0062] In addition, in order to improve the strength of the clamping portion 1323, the top plate 132 can be a flat plate, but the clamping portion 1323 is a double-layer structure formed by folding the end portion of the top plate 132, and correspondingly, the protruding portion can also be a double-layer structure formed by folding the top of the first connecting section.

[0063] Meanwhile, the first side plate 110 is of a similar L-shaped structure, and this connection mode makes the second side plate 120 and the top plate 132 more convenient to disassemble, and the compressor 30 can be directly disassembled from the second side plate 120 and the top plate 132 without separating the first side plate 110 and the partition plate 20, so as to perform maintenance, wiring and other operations on the compressor 30.

[0064] In some embodiments, at least one avoiding gap 1322 is arranged on the top plate 132, and the avoiding gap 1322 is used for passing the pipeline connected to the compressor 30, and a through hole for the pipeline to pass through is arranged on the first flexible sound insulation layer 131.

[0065] Among them, the at least one avoiding gap 1322 is located above the first side plate 110, and a fifth flange 113 is arranged on the first side plate 110, the fifth flange 113 is parallel to the top cover 130, and the fifth flange 113 extends to below the second avoiding gap 1322 or extends into the avoiding gap 1322, so as to reduce the area of the avoiding gap 1322 when the top plate 132 is connected with the first side plate 110.

[0066] Specifically, the exhaust pipe, the enthalpy increasing pipe and the suction pipe connected to the compressor 30 are all moving pipes and move with the compressor 30, and the avoiding gap 1322 arranged on the top plate 132 avoids these moving pipelines, so as to avoid the pipelines from colliding with the top plate 132 during the operation of the compressor 30, thereby avoiding the top plate 132 from scratching the moving pipelines and avoiding the moving pipelines from colliding with the top plate 132 to generate noise.

[0067] In general, in order to smoothly insert the air suction pipe and the exhaust pipe into the corresponding avoiding gap 1322, all avoiding gaps 1322 need to be opened on the side away from the second side plate 120, for example, the avoiding gap 1322 can be arranged in a structure similar to a U-shaped or L-shaped structure. The air suction pipe is located on the side of the compressor 30 away from the middle partition plate 20, and it is close to the second side plate 120, and the exhaust pipe is located in the middle of the top plate 132. When the top plate 132 is assembled on the first side plate 110, the corresponding avoiding gap 1322 of the air suction pipe is larger, and there is more free space after the air suction pipe is inserted, which affects the noise reduction effect. After the fifth flange 113 is arranged and the clamping part 1323 is inserted into the clamping groove 114, the fifth flange 113 can block part of the corresponding avoiding gap 1322 of the air suction pipe, thereby improving the noise reduction effect. Of course, the fifth flange 113 does not contact the air suction pipe to avoid damaging the air suction pipe, and can also avoid generating new noise.

[0068] For example, in order to avoid impact, the size of the avoiding gap 1322 can be larger than the pipeline, for example, the width of the avoiding gap 1322 corresponding to the exhaust pipe is 15mm larger than the diameter of the exhaust pipe, that is, there is a gap of 15mm between the exhaust pipe and the avoiding gap 1322.

[0069] It can be understood that the number and position of the avoiding gap 1322 can be arranged according to the position of the pipeline corresponding thereto, which is not limited in this embodiment.

[0070] In addition, if it is necessary to arrange the avoiding gap 1322 on the side adjacent to the middle partition plate 20, the free space of the avoiding gap 1322 can be sealed by the first flexible sound insulation layer 131 after the top plate 132 is assembled, and only a through hole is arranged on the first flexible sound insulation layer at the position corresponding to the pipeline, and the impact gap between the wall of the avoiding gap 1322 and the pipeline can be effectively sealed, which can effectively improve the noise reduction effect.

[0071] In some embodiments, the compressor noise reduction structure further comprises a second flexible sound insulation layer 200, which is arranged on the side adjacent to the compressor 30 of the first side plate 110, the second side plate 120 and the middle partition plate 20, and also arranged on the bottom of the compressor 30, so that the second flexible sound insulation layer 200 can form a sound insulation chamber which is arranged outside the compressor 30, and the sound insulation chamber is only opened at the position adjacent to the top cover 130, and the position is sealed by the top cover 130 and the first flexible sound insulation layer 131, thereby effectively improving the noise reduction effect.

[0072] Among them, the first flexible sound insulation layer 131 and the second flexible sound insulation layer 200 can be fixed to other components by common connection methods such as gluing, which is not limited in this embodiment.

[0073] In some embodiments, the first flexible sound insulation layer 131 and the second flexible sound insulation layer 200 each include a rubber layer and a sound insulation cotton layer arranged in a stack.

[0074] Specifically, the rubber can be made of a rubber material with a large mass or a high-density material such as polyethylene with a mass load, which can effectively block the propagation of noise. The sound insulation cotton can be made of a cavity material such as glass fiber, mineral wool, polyester fiber, rubber-plastic cotton, or polyurethane cotton, which is usually a porous structure that can absorb noise, thereby effectively reducing noise through the cooperation of the rubber and the sound insulation cotton.

[0075] For example, the first flexible sound insulation layer 131 and the second flexible sound insulation layer 200 each include a rubber layer and a sound insulation cotton layer, the thickness of the rubber layer is 1-3 mm, and the thickness of the sound insulation cotton layer is 3-20 mm.

[0076] In actual applications, the materials and thicknesses of the first flexible sound insulation layer 131 and the second flexible sound insulation layer 200 can be determined according to actual use scenarios, which are not limited in the present embodiment.

[0077] In actual applications, the first side plate 110, the second side plate 120, and the top plate 132 can be sheet metal parts with a thickness of 0.5-2 mm, which are also selected according to actual needs.

[0078] For example, the thickness of the first side plate 110, the second side plate 120, and the top plate 132 is 1 mm, the thickness of the rubber layer is 2 mm, and the thickness of the sound insulation cotton layer is 10 mm.

[0079] In addition, a gap, for example, a gap of 20 mm, can be left between the compressor noise reduction structure and the compressor 30 to leave a mounting allowance and avoid collision between the compressor 30 and the compressor noise reduction structure due to shaking during operation of the compressor 30.

[0080] It can be understood that the gap value between the compressor noise reduction structure and the compressor 30 can be adjusted according to the size of the actual installation space, which is not limited in the present embodiment.

[0081] When assembling the compressor noise reduction structure on the heat pump unit, the following operations can be performed:

[0082] Firstly, the second flexible sound insulation layer 200 is placed at the bottom of the compressor 30, and then the compressor 30 is fixed on the bottom plate of the heat pump unit through the bottom foot bolt, nut and other components, the second flexible sound insulation layer 200 is pasted on the first side plate 110, the second side plate 120 and the middle partition plate 20, the first side plate 110 is fixed on the middle partition plate 20 and the plate exchange support 40, then the second side plate 120 is connected with the middle partition plate 20 and the first side plate 110, subsequently, the clamping part 1323 of the top plate 132 is inserted into the clamping groove 114, and the top plate 132 and the second side plate 120 are fixed, finally, the second flexible sound insulation layer 200 is fixed on the top plate 132.

[0083] Compared with the traditional compressor 30 sound insulation cover, the noise generated by the compressor 30 is blocked by the cover body 100, the first flexible sound insulation layer 131 and the second flexible sound insulation layer 200, and the sound insulation effect is obvious; by designing the cover body 100 as three components of the first side plate 110, the second side plate 120 and the top plate 132, the maintenance of the compressor 30 is more convenient, at the same time, the middle partition plate 20 is used as a side plate of the cover body 100, which can save space and facilitate installation operation; in addition, the top plate 132 is connected with the first side plate 110 through clamping connection, which can solve the problem that the top plate 132 is difficult to be fixed by screwing on the rear side of the compressor 30 due to the blockage of pipelines and other components at the top end of the compressor 30, and the clamping connection can also save screws and save operation procedures.

[0084] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical scheme of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. A compressor noise reduction structure, characterized by, The application relates to a heat pump unit cover body, which comprises a cover body (100) provided with a press cavity for placing a compressor (30) of a heat pump unit, a connecting opening on one side of the cover body (100) in communication with the press cavity, and a middle partition plate (20) connected to one side of the cover body (100) and closing the connecting opening.

2. The compressor noise reduction structure of claim 1, wherein The cover body (100) comprises: a first side plate (110) for connecting with the middle partition plate (20); a second side plate (120) connected with the middle partition plate (20) on one side and connected with the middle partition plate (20) on the other side; a top cover (130) connected with the top of the first side plate (110) and the second side plate (120) to jointly form the press cavity.

3. The compressor noise reduction structure of claim 2, wherein, The first side plate (110) is provided with a first flange (111) and a second flange (112) on opposite sides, the first flange (111) is used for connecting with the middle partition plate (20), and the second flange (112) is connected with the second side plate (120).

4. The compressor noise reduction structure of claim 2, wherein The second side plate (120) is provided with a third flange (121) used for connecting with the middle partition plate (20).

5. The compressor noise reduction structure of claim 2, wherein The top cover (130) comprises a first flexible sound insulation layer (131).

6. The compressor noise reduction structure of claim 5, wherein The top cover (130) further comprises a top plate (132) provided with a fourth flange (1321) on one side and a clamping portion (1323) on the other side, the fourth flange (1321) extends to the outside of the second side plate (120) and is connected with the second side plate (120), and the first side plate (110) is provided with a clamping groove (114) clamped with the clamping portion (1323). The first flexible sound insulation layer (131) is located on the side of the top plate (132) away from the compressor (30).

7. The compressor noise reduction structure of claim 6, wherein The top plate (132) is provided with at least one avoiding notch (1322) for the pipeline connected to the compressor (30) to pass through, and the first flexible sound insulation layer (131) is provided with a through hole for the pipeline to pass through. At least one avoiding notch (1322) is located above the first side plate (110), the first side plate (110) is provided with a fifth flange (113) parallel to the top cover (130), and the fifth flange (113) extends below the avoiding notch (1322) or into the avoiding notch (1322), so as to reduce the area of the avoiding notch (1322) when the top plate (132) is connected with the first side plate (110).

8. The compressor noise reduction structure of any of claims 2-7, wherein, The second flexible sound insulation layer (200) is arranged on the first side plate (110), the second side plate (120) and the middle partition plate (20), and is arranged at the bottom of the compressor (30) to form a top-open sound insulation chamber outside the compressor (30).

9. The compressor noise reduction structure of claim 8, wherein, The second flexible sound insulation layer (200) comprises a rubber layer and a sound insulation cotton layer arranged in a stack.

10. A heat pump unit, characterized by The compressor (30), the middle partition plate (20) and the compressor noise reduction structure of any one of claims 1-9 are provided, the cover body (100) of the compressor noise reduction structure covers the compressor (30) and is connected with the middle partition plate (20), and a gap is formed between the cover body (100) and the compressor (30).

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