Compressor noise reduction structure and compressor

Abstract

The application provides a compressor noise reduction structure and a compressor. The compressor noise reduction structure comprises an oil storage part fixedly connected with a pump body assembly of the compressor, the oil storage part is used for being installed at a corresponding position in a bottom oil pool of the compressor, at least part of refrigeration oil flowing in a direction from the pump body assembly to the bottom oil pool can flow into and be stored in the oil storage part, and the mass of the pump body assembly is increased. According to the technical scheme of the application, the oil storage part is arranged on the body assembly, the original structure of the compressor is not changed, the original function of the compressor is not affected, part of the refrigeration oil is stored by the oil storage part to add the mass of the pump body assembly, and therefore the modal response strength of the pump body assembly is effectively reduced, that is, the vibration strength is reduced, and the noise caused by the vibration is reduced. Moreover, the additional mass depends on the refrigeration oil of the compressor, and no other weight increasing material or counterweight structure needs to be additionally arranged, the original mass of the compressor as a whole is not changed, and the lightweight design requirement is met.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a compressor noise reduction structure and a compressor. Background Technology

[0002] The pump body assembly with the motor rotor is the core component of the compressor, and it has its own mode of "rotor end oscillation, and rotor end oscillation synchronously with the pump body". Since the pump body assembly is connected to the motor rotor assembly and the compressor housing assembly, when the pump body assembly is working, it receives a lot of energy from the motor and transmits it to the housing. Therefore, when its own mode is excited, the resulting vibration has strong transmissibility and radiates outward through the housing, thus causing noise problems.

[0003] Current conventional solutions to vibration and noise problems involve increasing structural stiffness and mass to reduce vibration intensity. However, these solutions are not effectively applied to pump assemblies because current pump assemblies already possess considerable structural stiffness. Furthermore, limitations imposed by the structure of the pump assemblies and compressor, along with design specifications, make further improvements in structural stiffness and mass difficult. Therefore, the noise problem caused by pump assembly vibration in compressors currently lacks an effective solution in existing technology. Summary of the Invention

[0004] To address the noise problem caused by vibration of the pump body assembly during the excitation of the working mode of the compressor, which cannot be solved by existing technologies, this invention proposes a compressor noise reduction structure and a compressor.

[0005] In a first aspect, the present invention proposes a compressor noise reduction structure, including an oil storage component fixedly connected to the pump body assembly of the compressor. The oil storage component is used to be installed at a corresponding position in the bottom oil sump of the compressor, and at least a portion of the refrigerant oil flowing along the direction from the pump body assembly to the bottom oil sump can flow into and be stored in the oil storage component to increase the mass of the pump body assembly.

[0006] In one embodiment, the oil reservoir is connected to the end of the pump assembly closest to the bottom oil sump.

[0007] In one embodiment, the oil reservoir has an internal oil storage chamber, and the side of the oil reservoir facing the pump body assembly has an opening communicating with the oil storage chamber.

[0008] In one embodiment, the oil storage component includes a plurality of hollow connecting posts extending from the bottom of the oil storage cavity toward the opening. The end of the connecting post near the opening is provided with an assembly hole for connecting with the pump body assembly, and the end away from the opening is provided with an assembly operation port communicating with the outside.

[0009] In one embodiment, an overflow hole is provided on the wall of the oil storage chamber, and the overflow hole is used to discharge excess refrigeration oil in the oil storage chamber into the bottom oil pool.

[0010] In one embodiment, the pump body assembly has an oil guide channel inside, one end of which has a channel opening formed on the pump body assembly, and the portion of the channel opening extends into the interior of the oil storage component and can be immersed in the refrigeration oil inside the oil storage component.

[0011] In one embodiment, a gap is provided between the sidewall of the oil reservoir and the inner wall of the outer shell surrounding the bottom oil tank, the gap being used to allow a portion of the refrigeration oil to flow into the bottom oil tank and to store a portion of the refrigeration oil.

[0012] In one embodiment, the width of the gap is not greater than a preset width.

[0013] In one embodiment, the oil reservoir is a thin-walled stamped part with a wall thickness of no more than 2 mm.

[0014] Secondly, the present invention proposes a compressor that includes the above-mentioned compressor noise reduction structure, thereby possessing all the technical effects it has.

[0015] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0016] The compressor noise reduction structure and compressor provided by this invention have at least the following advantages compared with the prior art:

[0017] This invention discloses a compressor noise reduction structure and compressor. By incorporating an oil reservoir on the main body assembly, and without altering the original compressor structure or function, the reservoir stores a portion of the refrigerant oil, thereby adding mass to the pump body assembly. This effectively reduces the modal response intensity of the pump body assembly, i.e., reduces vibration intensity and noise caused by vibration. Furthermore, the added mass relies on the compressor's existing refrigerant oil, eliminating the need for any external weight-adding materials or counterweight structures, and does not alter the overall original mass of the compressor, thus meeting lightweight design requirements. Attached Figure Description

[0018] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0019] Figure 1 This shows a schematic diagram of the overall structure of the compressor noise reduction structure of the present invention;

[0020] Figure 2 Showing Figure 1 A bottom view of the bottom of the oil reservoir;

[0021] Figure 3 A part drawing of the oil reservoir component of the compressor noise reduction structure of the present invention is shown;

[0022] Figure 4 The modal response curves of the compressor pump body assembly based on the noise reduction structure of the present invention and the conventional pump body assembly are shown.

[0023] Figure 5 The modal noise peak curves of the compressor pump body assembly based on the noise reduction structure of the present invention and the conventional pump body assembly are shown.

[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0025] Figure label:

[0026] 1-Oil reservoir, 11-Connecting column, 111-Assembly hole, 112-Assembly operation port, 12-Oil reservoir, 2-Pump body assembly, 21-Upper flange, 22-Lower flange, 23-Crankshaft, 231-Oil guide, 232-Oil guide channel, 3-Bottom oil sump, 4-Outer shell, 5-Gap, 6-Motor rotor assembly, 7-Fasteners. Detailed Implementation

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Example 1

[0029] An embodiment of the present invention provides a compressor noise reduction structure, including an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0030] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure. Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0031] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0032] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0033] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0034] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0035] Example 2

[0036] An embodiment of the present invention provides a compressor noise reduction structure, including an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0037] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure. Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0038] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0039] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0040] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0041] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0042] Furthermore, the oil storage component 1 has an oil storage chamber 12 inside, and the side of the oil storage component 1 facing the pump body assembly 2 has an opening that communicates with the oil storage chamber 12.

[0043] Specifically, as shown in the attached diagram. Figure 1 and Figure 3 As shown, the oil storage component 1 is designed as a box-shaped structure, with an oil storage chamber 12 inside. The side facing the pump body assembly 2 is open, and the refrigeration oil flowing out from the pump body assembly 2 can enter the oil storage chamber 12 through the open for storage.

[0044] Furthermore, the oil storage component 1 includes a plurality of hollow connecting columns 11 extending from the bottom of the oil storage chamber 12 toward the opening. The end of the connecting column 11 near the opening is provided with an assembly hole 111 for connecting with the pump body assembly 2, and the end away from the opening is provided with an assembly operation port 112 for communicating with the outside.

[0045] Specifically, as shown in the attached diagram. Figures 1 to 3As shown, the oil reservoir 1 is connected to the pump body assembly 2 via a connecting post 11. The top of the connecting post 11 is provided with an assembly hole 111 that can be connected to the pump body assembly 2 via a fastener 7. The fastener 7 is inserted into the connecting post 11 through the assembly operation port 112. The fastener 7 can be pushed to the assembly hole 111 and connected to the corresponding hole structure on the main body assembly using an assembly tool (such as a screwdriver).

[0046] Preferably, the oil reservoir 1 is a thin-walled stamped part with a wall thickness of no more than 2 mm, and more preferably 1 mm. The oil reservoir cavity 12 and connecting column 11 of the oil reservoir 1 are all formed by stamping, except that the stamping direction forming the oil reservoir cavity 12 is opposite to the stamping direction forming the connecting column 11. The advantage of using a thin-walled stamped part is that it is easy to process, and the overall wall thickness is thin and the weight is small. After installation in the compressor, it will not significantly change the overall weight of the compressor, thus meeting the requirements of lightweight design.

[0047] Example 3

[0048] An embodiment of the present invention provides a compressor noise reduction structure, including an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0049] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure. Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0050] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0051] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0052] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0053] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0054] Furthermore, the oil storage component 1 has an oil storage chamber 12 inside, and the side of the oil storage component 1 facing the pump body assembly 2 has an opening that communicates with the oil storage chamber 12.

[0055] Specifically, as shown in the attached diagram. Figure 1 and Figure 3 As shown, the oil storage component 1 is designed as a box-shaped structure, with an oil storage chamber 12 inside. The side facing the pump body assembly 2 is open, and the refrigeration oil flowing out from the pump body assembly 2 can enter the oil storage chamber 12 through the open for storage.

[0056] Furthermore, the oil storage component 1 includes a plurality of hollow connecting columns 11 extending from the bottom of the oil storage chamber 12 toward the opening. The end of the connecting column 11 near the opening is provided with an assembly hole 111 for connecting with the pump body assembly 2, and the end away from the opening is provided with an assembly operation port 112 for communicating with the outside.

[0057] Specifically, as shown in the attached diagram. Figures 1 to 3 As shown, the oil reservoir 1 is connected to the pump body assembly 2 via a connecting post 11. The top of the connecting post 11 is provided with an assembly hole 111 that can be connected to the pump body assembly 2 via a fastener 7. The fastener 7 is inserted into the connecting post 11 through the assembly operation port 112. The fastener 7 can be pushed to the assembly hole 111 and connected to the corresponding hole structure on the main body assembly using an assembly tool (such as a screwdriver).

[0058] Preferably, the oil reservoir 1 is a thin-walled stamped part with a wall thickness of no more than 2 mm, and more preferably 1 mm. The oil reservoir cavity 12 and connecting column 11 of the oil reservoir 1 are all formed by stamping, except that the stamping direction forming the oil reservoir cavity 12 is opposite to the stamping direction forming the connecting column 11. The advantage of using a thin-walled stamped part is that it is easy to process, and the overall wall thickness is thin and the weight is small. After installation in the compressor, it will not significantly change the overall weight of the compressor, thus meeting the requirements of lightweight design.

[0059] Furthermore, an overflow hole is provided on the wall of the oil storage chamber 12, which is used to drain excess refrigeration oil in the oil storage chamber 12 into the bottom oil pool 3.

[0060] Specifically, the overflow orifice (not shown in the attached diagram) is mainly used to control the maximum amount of refrigerant oil that can be stored in the oil storage chamber 12, in order to meet the noise reduction requirements of compressors of different specifications. For compressors of different specifications, the position of the overflow orifice in the depth direction of the oil storage chamber 12 can be changed, thereby changing the mass of refrigerant oil inside the oil storage component 1 attached to the pump body assembly 2, thus meeting the noise reduction and counterweight requirements of the pump body assembly 2 for compressors of different specifications.

[0061] Furthermore, the pump body assembly 2 has an oil guide channel 232 inside. One end of the oil guide channel 232 has a channel opening formed on the pump body assembly 2. The part where the channel opening is located extends into the interior of the oil storage component 1 and can be immersed in the refrigeration oil inside the oil storage component 1.

[0062] Specifically, as shown in the attached diagram. Figure 1 As shown, the compressor mainly includes a housing 4 and a pump body assembly 2 and a motor rotor assembly 6 disposed inside the housing 4. The main body assembly includes a crankshaft 23, an upper flange 21, and a lower flange 22. The curved portion of the crankshaft 23 is constrained between the upper flange 21 and the lower flange 22. The motor rotor assembly 6 is connected to the upper end of the crankshaft 23. The bottom of the housing 4 forms a bottom oil sump 3 located below the main body assembly. The crankshaft 23 has an oil guide channel 232 extending axially inside. One end of the oil guide channel 232 forms a channel opening at the end of the crankshaft 23, and an oil guide element 231 is disposed inside the oil guide channel 232 at the channel opening.

[0063] When the compressor is working, the crankshaft 23 is driven to rotate by the motor rotor assembly 6. Since the opening of the oil guide channel 232 is immersed in the refrigeration oil inside the oil storage component 1, the oil guide component 231, which rotates with the crankshaft 23, can guide the refrigeration oil into the oil guide channel 232 through the opening. When the refrigeration oil is transported along the oil guide channel 232 to the oil outlet at the other end (not shown in the attached figure), the refrigeration oil falls or flows down to the oil storage component 1 and the bottom oil pool 3 under the action of gravity, realizing the circulation of refrigeration oil.

[0064] Example 4

[0065] An embodiment of the present invention provides a compressor noise reduction structure, including an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0066] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure. Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0067] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0068] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0069] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0070] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0071] Furthermore, the oil storage component 1 has an oil storage chamber 12 inside, and the side of the oil storage component 1 facing the pump body assembly 2 has an opening that communicates with the oil storage chamber 12.

[0072] Specifically, as shown in the attached diagram. Figure 1 and Figure 3 As shown, the oil storage component 1 is designed as a box-shaped structure, with an oil storage chamber 12 inside. The side facing the pump body assembly 2 is open, and the refrigeration oil flowing out from the pump body assembly 2 can enter the oil storage chamber 12 through the open for storage.

[0073] Furthermore, the oil storage component 1 includes a plurality of hollow connecting columns 11 extending from the bottom of the oil storage chamber 12 toward the opening. The end of the connecting column 11 near the opening is provided with an assembly hole 111 for connecting with the pump body assembly 2, and the end away from the opening is provided with an assembly operation port 112 for communicating with the outside.

[0074] Specifically, as shown in the attached diagram. Figures 1 to 3 As shown, the oil reservoir 1 is connected to the pump body assembly 2 via a connecting post 11. The top of the connecting post 11 is provided with an assembly hole 111 that can be connected to the pump body assembly 2 via a fastener 7. The fastener 7 is inserted into the connecting post 11 through the assembly operation port 112. The fastener 7 can be pushed to the assembly hole 111 and connected to the corresponding hole structure on the main body assembly using an assembly tool (such as a screwdriver).

[0075] Preferably, the oil reservoir 1 is a thin-walled stamped part with a wall thickness of no more than 2 mm, and more preferably 1 mm. The oil reservoir cavity 12 and connecting column 11 of the oil reservoir 1 are all formed by stamping, except that the stamping direction forming the oil reservoir cavity 12 is opposite to the stamping direction forming the connecting column 11. The advantage of using a thin-walled stamped part is that it is easy to process, and the overall wall thickness is thin and the weight is small. After installation in the compressor, it will not significantly change the overall weight of the compressor, thus meeting the requirements of lightweight design.

[0076] Furthermore, an overflow hole is provided on the wall of the oil storage chamber 12, which is used to drain excess refrigeration oil in the oil storage chamber 12 into the bottom oil pool 3.

[0077] Specifically, the overflow orifice (not shown in the attached diagram) is mainly used to control the maximum amount of refrigerant oil that can be stored in the oil storage chamber 12, in order to meet the noise reduction requirements of compressors of different specifications. For different compressor specifications, the position of the overflow orifice in the depth direction of the oil storage chamber 12 can be changed, thereby changing the mass of refrigerant oil inside the oil storage component 1 attached to the pump body assembly 2, meeting the noise reduction and counterweight requirements of the pump body assembly 2 for compressors of different specifications. Based on current mainstream compressor specifications, the refrigerant oil in the oil storage component 1 can generally store a maximum of 100g-200g.

[0078] Furthermore, the pump body assembly 2 has an oil guide channel 232 inside. One end of the oil guide channel 232 has a channel opening formed on the pump body assembly 2. The part where the channel opening is located extends into the interior of the oil storage component 1 and can be immersed in the refrigeration oil inside the oil storage component 1.

[0079] Specifically, as shown in the attached diagram. Figure 1 As shown, the compressor mainly includes a housing 4 and a pump body assembly 2 and a motor rotor assembly 6 disposed inside the housing 4. The main body assembly includes a crankshaft 23, an upper flange 21, and a lower flange 22. The curved portion of the crankshaft 23 is constrained between the upper flange 21 and the lower flange 22. The motor rotor assembly 6 is connected to the upper end of the crankshaft 23. The bottom of the housing 4 forms a bottom oil sump 3 located below the main body assembly. The crankshaft 23 has an oil guide channel 232 extending axially inside. One end of the oil guide channel 232 forms a channel opening at the end of the crankshaft 23, and an oil guide element 231 is disposed inside the oil guide channel 232 at the channel opening.

[0080] When the compressor is working, the crankshaft 23 is driven to rotate by the motor rotor assembly 6. Since the opening of the oil guide channel 232 is immersed in the refrigeration oil inside the oil storage component 1, the oil guide component 231, which rotates with the crankshaft 23, can guide the refrigeration oil into the oil guide channel 232 through the opening. When the refrigeration oil is transported along the oil guide channel 232 to the oil outlet at the other end (not shown in the attached figure), the refrigeration oil falls or flows down to the oil storage component 1 and the bottom oil pool 3 under the action of gravity, realizing the circulation of refrigeration oil.

[0081] Furthermore, there is a gap 5 between the side wall of the oil storage component 1 and the inner wall of the outer shell 4 that forms the bottom oil pool 3. The gap 5 is used to allow some of the refrigeration oil to flow into the bottom oil pool 3 and to store some of the refrigeration oil.

[0082] Specifically, as the refrigerant oil flows out of the oil outlet at one end of the crankshaft 23 and flows towards the bottom oil sump 3, it is divided into two parts: one part of the refrigerant oil falls to the pump body assembly 2 under the action of gravity, specifically falling onto the upper flange 21 of the pump body assembly 2, passing through the flow holes on the upper flange 21 and the lower flange 22 (not shown in the attached figure), and then falls into the oil storage container 1 (depending on the size of the oil storage container 1, if the coverage area of ​​the oil storage container 1 is small, it may also fall directly into the bottom oil sump 3); the other part of the refrigerant oil is thrown out onto the inner wall of the compressor housing 4 under the action of the centrifugal force of the rotation of the crankshaft 23, and flows down along the inner wall to the gap 5. According to the flow rate of the refrigerant oil flowing down along the inner wall of the housing 4, the small flow rate of refrigerant oil flows into the bottom oil sump 3 through the gap 5, and the large flow rate of refrigerant oil, part of which flows into the bottom oil sump 3 through the gap 5, and the other part overflows to the opening of the oil storage container 1 and enters the oil storage container 1.

[0083] Preferably, the width of the gap 5 is not greater than the preset width.

[0084] Specifically, because refrigeration oil has a certain viscosity, when the gap 5 is small (i.e., not greater than the preset width), even if the bottom oil sump 3 is not full, some refrigeration oil can remain in the gap 5. Therefore, the liquid tension of the refrigeration oil remaining in the gap 5 or the refrigeration oil filling the gap 5 when the bottom oil sump 3 is full can be used to limit the vibration response of the oil reservoir 1 relative to the outer casing 4. Thus, based on the added mass of the pump body assembly 2, the modal response intensity of the pump body assembly 2 can be further reduced by liquid tension, thereby reducing the intensity of vibration and noise.

[0085] It should be noted that the specific width of gap 5 needs to be determined based on the viscosity of the refrigeration oil and considerations such as providing a flow path for the refrigeration oil based on gap 5; if the gap 5 is too wide, the liquid tension effect will be insignificant, and if the gap 5 is too narrow, it will affect the normal flow of the refrigeration oil. In this embodiment, the width of gap 5 is 3-8 mm.

[0086] Example 5

[0087] This implementation mainly demonstrates the superiority of the technical solution of the present invention based on actual measurement data.

[0088] Refer to the attached diagram. Figure 4 The modal frequency response curves show the modal response results of a conventional pump assembly without a noise reduction structure and a pump assembly with the noise reduction structure proposed in this invention. In the figure, the "90° weld point without" is not a reference frequency response curve, and the "90° weld point with flange" is the frequency response curve of the oil reservoir 1 containing refrigeration oil with an added mass of 120g for the pump assembly. According to the curves in the figure, 1.4KHz is the pump body modal frequency. The frequency response curve amplitude of the pump body with added mass is lower than that of the pump body without added mass due to the noise reduction structure proposed in this invention.

[0089] Furthermore, based on the noise reduction structure proposed in this invention, the pump body modal noise peak of a certain model's compressor is optimized, as shown in the attached figure. Figure 5 The results show that, based on the noise reduction structure of the present invention, the peak noise level of the pump assembly accessory is reduced by a maximum of approximately 11% for a mass of 70g.

[0090] Example 6

[0091] An embodiment of the present invention provides a compressor including a compressor noise reduction structure. The compressor noise reduction structure includes an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0092] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure.Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0093] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0094] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0095] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0096] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0097] Example 7

[0098] An embodiment of the present invention provides a compressor including a compressor noise reduction structure. The compressor noise reduction structure includes an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0099] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure.Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0100] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0101] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0102] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0103] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0104] Furthermore, the oil storage component 1 has an oil storage chamber 12 inside, and the side of the oil storage component 1 facing the pump body assembly 2 has an opening that communicates with the oil storage chamber 12.

[0105] Specifically, as shown in the attached diagram. Figure 1 and Figure 3 As shown, the oil storage component 1 is designed as a box-shaped structure, with an oil storage chamber 12 inside. The side facing the pump body assembly 2 is open, and the refrigeration oil flowing out from the pump body assembly 2 can enter the oil storage chamber 12 through the open for storage.

[0106] Furthermore, the oil storage component 1 includes a plurality of hollow connecting columns 11 extending from the bottom of the oil storage chamber 12 toward the opening. The end of the connecting column 11 near the opening is provided with an assembly hole 111 for connecting with the pump body assembly 2, and the end away from the opening is provided with an assembly operation port 112 for communicating with the outside.

[0107] Specifically, as shown in the attached diagram. Figures 1 to 3 As shown, the oil reservoir 1 is connected to the pump body assembly 2 via a connecting post 11. The top of the connecting post 11 is provided with an assembly hole 111 that can be connected to the pump body assembly 2 via a fastener 7. The fastener 7 is inserted into the connecting post 11 through the assembly operation port 112. The fastener 7 can be pushed to the assembly hole 111 and connected to the corresponding hole structure on the main body assembly using an assembly tool (such as a screwdriver).

[0108] Preferably, the oil reservoir 1 is a thin-walled stamped part with a wall thickness of no more than 2 mm, and more preferably 1 mm. The oil reservoir cavity 12 and connecting column 11 of the oil reservoir 1 are all formed by stamping, except that the stamping direction forming the oil reservoir cavity 12 is opposite to the stamping direction forming the connecting column 11. The advantage of using a thin-walled stamped part is that it is easy to process, and the overall wall thickness is thin and the weight is small. After installation in the compressor, it will not significantly change the overall weight of the compressor, thus meeting the requirements of lightweight design.

[0109] Furthermore, an overflow hole is provided on the wall of the oil storage chamber 12, which is used to drain excess refrigeration oil in the oil storage chamber 12 into the bottom oil pool 3.

[0110] Specifically, the overflow orifice (not shown in the attached diagram) is mainly used to control the maximum amount of refrigerant oil that can be stored in the oil storage chamber 12, in order to meet the noise reduction requirements of compressors of different specifications. For compressors of different specifications, the position of the overflow orifice in the depth direction of the oil storage chamber 12 can be changed, thereby changing the mass of refrigerant oil inside the oil storage component 1 attached to the pump body assembly 2, thus meeting the noise reduction and counterweight requirements of the pump body assembly 2 for compressors of different specifications.

[0111] Furthermore, the pump body assembly 2 has an oil guide channel 232 inside. One end of the oil guide channel 232 has a channel opening formed on the pump body assembly 2. The part where the channel opening is located extends into the interior of the oil storage component 1 and can be immersed in the refrigeration oil inside the oil storage component 1.

[0112] Specifically, as shown in the attached diagram. Figure 1As shown, the compressor mainly includes a housing 4 and a pump body assembly 2 and a motor rotor assembly 6 disposed inside the housing 4. The main body assembly includes a crankshaft 23, an upper flange 21, and a lower flange 22. The curved portion of the crankshaft 23 is constrained between the upper flange 21 and the lower flange 22. The motor rotor assembly 6 is connected to the upper end of the crankshaft 23. The bottom of the housing 4 forms a bottom oil sump 3 located below the main body assembly. The crankshaft 23 has an oil guide channel 232 extending axially inside. One end of the oil guide channel 232 forms a channel opening at the end of the crankshaft 23, and an oil guide element 231 is disposed inside the oil guide channel 232 at the channel opening.

[0113] When the compressor is working, the crankshaft 23 is driven to rotate by the motor rotor assembly 6. Since the opening of the oil guide channel 232 is immersed in the refrigeration oil inside the oil storage component 1, the oil guide component 231, which rotates with the crankshaft 23, can guide the refrigeration oil into the oil guide channel 232 through the opening. When the refrigeration oil is transported along the oil guide channel 232 to the oil outlet at the other end (not shown in the attached figure), the refrigeration oil falls or flows down to the oil storage component 1 and the bottom oil pool 3 under the action of gravity, realizing the circulation of refrigeration oil.

[0114] Example 8

[0115] An embodiment of the present invention provides a compressor including a compressor noise reduction structure. The compressor noise reduction structure includes an oil storage component 1 fixedly connected to the pump body assembly 2 of the compressor. The oil storage component 1 is installed at a corresponding position in the bottom oil sump 3 of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly 2 to the bottom oil sump 3 can flow into and be stored in the oil storage component 1 to increase the mass of the pump body assembly 2.

[0116] Specifically, the noise reduction structure of the present invention is mainly based on the oil reservoir 1 installed inside the compressor, as shown in the attached figure. Figure 1 As shown, the oil storage component 1 is connected to the pump body assembly 2 and is located in the bottom oil sump 3 of the compressor. Structurally, the oil storage component 1 only occupies part of the space in the bottom oil sump 3. The setting of the oil storage component 1 does not change or need to change the original structure inside the compressor. Therefore, the application of the noise reduction structure based on the oil storage component 1 proposed in this invention in the compressor has very high feasibility.

[0117] Based on the current operating principle of compressors, after the refrigerant oil is input into the pump assembly 2, it flows from the pump assembly 2 to the bottom oil sump 3 under the action of gravity. In the technical solution of this invention, the oil storage component 1 is placed in the flow path of the refrigerant oil, so at least a portion of the refrigerant oil will flow into the oil storage component 1 for storage. Therefore, although the oil storage component 1 occupies part of the space in the bottom oil sump 3 from this structure, the oil storage component 1 itself can store oil and can achieve the same oil storage effect as the bottom oil sump 3. Therefore, from a functional point of view, the setting of the oil storage component 1 does not affect the normal function of the original components of the compressor.

[0118] Therefore, the oil conservator 1 proposed in this invention can increase its own mass by storing a portion of the refrigerant oil without altering the original structure or function of the compressor. This increase in mass relies on the original refrigerant oil in the compressor, requiring no additional weight-adding materials or counterweight structures, and essentially does not change the overall original mass of the compressor. The increased mass of the oil conservator 1 by storing refrigerant oil further increases the mass of the pump assembly 2 connected to it. This increased mass effectively reduces the modal response intensity of the pump assembly 2, i.e., reduces vibration intensity, thereby reducing noise caused by vibration.

[0119] Furthermore, the oil storage component 1 is connected to the end of the pump body assembly 2 closest to the bottom oil sump 3.

[0120] Specifically, the end of the pump body assembly 2 closest to the bottom oil tank 3 is the position with the greatest deformation in the modal vibration mode of the pump body assembly 2. Placing the oil storage component 1 at this position can minimize the intensity of the modal response, thereby effectively reducing noise.

[0121] Furthermore, the oil storage component 1 has an oil storage chamber 12 inside, and the side of the oil storage component 1 facing the pump body assembly 2 has an opening that communicates with the oil storage chamber 12.

[0122] Specifically, as shown in the attached diagram. Figure 1 and Figure 3 As shown, the oil storage component 1 is designed as a box-shaped structure, with an oil storage chamber 12 inside. The side facing the pump body assembly 2 is open, and the refrigeration oil flowing out from the pump body assembly 2 can enter the oil storage chamber 12 through the open for storage.

[0123] Furthermore, the oil storage component 1 includes a plurality of hollow connecting columns 11 extending from the bottom of the oil storage chamber 12 toward the opening. The end of the connecting column 11 near the opening is provided with an assembly hole 111 for connecting with the pump body assembly 2, and the end away from the opening is provided with an assembly operation port 112 for communicating with the outside.

[0124] Specifically, as shown in the attached diagram. Figures 1 to 3 As shown, the oil reservoir 1 is connected to the pump body assembly 2 via a connecting post 11. The top of the connecting post 11 is provided with an assembly hole 111 that can be connected to the pump body assembly 2 via a fastener 7. The fastener 7 is inserted into the connecting post 11 through the assembly operation port 112. The fastener 7 can be pushed to the assembly hole 111 and connected to the corresponding hole structure on the main body assembly using an assembly tool (such as a screwdriver).

[0125] Preferably, the oil reservoir 1 is a thin-walled stamped part with a wall thickness of no more than 2 mm, and more preferably 1 mm. The oil reservoir cavity 12 and connecting column 11 of the oil reservoir 1 are all formed by stamping, except that the stamping direction forming the oil reservoir cavity 12 is opposite to the stamping direction forming the connecting column 11. The advantage of using a thin-walled stamped part is that it is easy to process, and the overall wall thickness is thin and the weight is small. After installation in the compressor, it will not significantly change the overall weight of the compressor, thus meeting the requirements of lightweight design.

[0126] Furthermore, an overflow hole is provided on the wall of the oil storage chamber 12, which is used to drain excess refrigeration oil in the oil storage chamber 12 into the bottom oil pool 3.

[0127] Specifically, the overflow orifice (not shown in the attached diagram) is mainly used to control the maximum amount of refrigerant oil that can be stored in the oil storage chamber 12, in order to meet the noise reduction requirements of compressors of different specifications. For different compressor specifications, the position of the overflow orifice in the depth direction of the oil storage chamber 12 can be changed, thereby changing the mass of refrigerant oil inside the oil storage component 1 attached to the pump body assembly 2, meeting the noise reduction and counterweight requirements of the pump body assembly 2 for compressors of different specifications. Based on current mainstream compressor specifications, the refrigerant oil in the oil storage component 1 can generally store a maximum of 100g-200g.

[0128] Furthermore, the pump body assembly 2 has an oil guide channel 232 inside. One end of the oil guide channel 232 has a channel opening formed on the pump body assembly 2. The part where the channel opening is located extends into the interior of the oil storage component 1 and can be immersed in the refrigeration oil inside the oil storage component 1.

[0129] Specifically, as shown in the attached diagram. Figure 1 As shown, the compressor mainly includes a housing 4 and a pump body assembly 2 and a motor rotor assembly 6 disposed inside the housing 4. The main body assembly includes a crankshaft 23, an upper flange 21, and a lower flange 22. The curved portion of the crankshaft 23 is constrained between the upper flange 21 and the lower flange 22. The motor rotor assembly 6 is connected to the upper end of the crankshaft 23. The bottom of the housing 4 forms a bottom oil sump 3 located below the main body assembly. The crankshaft 23 has an oil guide channel 232 extending axially inside. One end of the oil guide channel 232 forms a channel opening at the end of the crankshaft 23, and an oil guide element 231 is disposed inside the oil guide channel 232 at the channel opening.

[0130] When the compressor is working, the crankshaft 23 is driven to rotate by the motor rotor assembly 6. Since the opening of the oil guide channel 232 is immersed in the refrigeration oil inside the oil storage component 1, the oil guide component 231, which rotates with the crankshaft 23, can guide the refrigeration oil into the oil guide channel 232 through the opening. When the refrigeration oil is transported along the oil guide channel 232 to the oil outlet at the other end (not shown in the attached figure), the refrigeration oil falls or flows down to the oil storage component 1 and the bottom oil pool 3 under the action of gravity, realizing the circulation of refrigeration oil.

[0131] Furthermore, there is a gap 5 between the side wall of the oil storage component 1 and the inner wall of the outer shell 4 that forms the bottom oil pool 3. The gap 5 is used to allow some of the refrigeration oil to flow into the bottom oil pool 3 and to store some of the refrigeration oil.

[0132] Specifically, as the refrigerant oil flows out of the oil outlet at one end of the crankshaft 23 and flows towards the bottom oil sump 3, it is divided into two parts: one part of the refrigerant oil falls to the pump body assembly 2 under the action of gravity, specifically falling onto the upper flange 21 of the pump body assembly 2, passing through the flow holes on the upper flange 21 and the lower flange 22 (not shown in the attached figure), and then falls into the oil storage container 1 (depending on the size of the oil storage container 1, if the coverage area of ​​the oil storage container 1 is small, it may also fall directly into the bottom oil sump 3); the other part of the refrigerant oil is thrown out onto the inner wall of the compressor housing 4 under the action of the centrifugal force of the rotation of the crankshaft 23, and flows down along the inner wall to the gap 5. According to the flow rate of the refrigerant oil flowing down along the inner wall of the housing 4, the small flow rate of refrigerant oil flows into the bottom oil sump 3 through the gap 5, and the large flow rate of refrigerant oil, part of which flows into the bottom oil sump 3 through the gap 5, and the other part overflows to the opening of the oil storage container 1 and enters the oil storage container 1.

[0133] Preferably, the width of the gap 5 is not greater than the preset width.

[0134] Specifically, because refrigeration oil has a certain viscosity, when the gap 5 is small (i.e., not greater than the preset width), even if the bottom oil sump 3 is not full, some refrigeration oil can remain in the gap 5. Therefore, the liquid tension of the refrigeration oil remaining in the gap 5 or the refrigeration oil filling the gap 5 when the bottom oil sump 3 is full can be used to limit the vibration response of the oil reservoir 1 relative to the outer casing 4. Thus, based on the added mass of the pump body assembly 2, the modal response intensity of the pump body assembly 2 can be further reduced by liquid tension, thereby reducing the intensity of vibration and noise.

[0135] It should be noted that the specific width of gap 5 needs to be determined based on the viscosity of the refrigeration oil and considerations such as providing a flow path for the refrigeration oil based on gap 5; if the gap 5 is too wide, the liquid tension effect will be insignificant, and if the gap 5 is too narrow, it will affect the normal flow of the refrigeration oil. In this embodiment, the width of gap 5 is 3-8 mm.

[0136] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0137] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A compressor noise reduction structure, characterized in that, The compressor includes an oil reservoir fixedly connected to the pump body assembly of the compressor. The oil reservoir is installed at a corresponding position in the bottom oil sump of the compressor. At least a portion of the refrigerant oil flowing along the direction from the pump body assembly to the bottom oil sump can flow into and be stored in the oil reservoir to increase the mass of the pump body assembly. The oil storage component is connected to the end of the pump body assembly closest to the bottom oil sump; The oil storage component has an oil storage cavity inside, and the side of the oil storage component facing the pump body assembly has an opening that communicates with the oil storage cavity; The oil storage component includes a plurality of hollow connecting columns extending from the bottom of the oil storage chamber toward the opening. The connecting column is provided with an assembly hole for connecting with the pump body assembly at one end near the opening and an assembly operation port for communicating with the outside at the other end away from the opening. The oil storage component is connected to the pump body assembly through the connecting columns. There is a gap between the side wall of the oil storage component and the inner wall of the outer shell forming the bottom oil tank. The gap is used to allow some of the refrigeration oil to flow into the bottom oil tank and to store some of the refrigeration oil. The width of the gap is not greater than a preset width, and the width of the gap is 3-8 mm.

2. The compressor noise reduction structure according to claim 1, characterized in that, An overflow hole is provided on the wall of the oil storage chamber, which is used to drain excess refrigeration oil in the oil storage chamber into the bottom oil pool.

3. The compressor noise reduction structure according to claim 1 or 2, characterized in that, The pump body assembly has an oil guide channel inside. One end of the oil guide channel has a channel opening formed on the pump body assembly. The part where the channel opening is located extends into the interior of the oil storage component and can be immersed in the refrigeration oil inside the oil storage component.

4. The compressor noise reduction structure according to claim 1 or 2, characterized in that, The oil storage component is a thin-walled stamped part with a wall thickness of no more than 2mm.

5. A compressor, characterized in that, Includes the compressor noise reduction structure as described in any one of claims 1 to 4.

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