Filter support, liquid storage device and compressor

Abstract

The present invention provides a filter support, a liquid reservoir and a compressor, comprising N layers of partitions connected in sequence and at least one guide channel penetrating the N layers of partitions, an air cavity is provided between any two adjacent layers of the partitions, wherein N is a positive integer and N≥2; a spacer is provided between the guide channel and the air cavity; the first layer of the N layers of partitions is close to the position of the air inlet of the liquid reservoir, and each layer of the partitions from the second layer to the Nth layer of partitions is provided with at least one air inlet hole, and the air inlet hole is connected to the air cavity; the Nth layer of partitions is provided with an air outlet hole for connecting to the air outlet pipe of the liquid reservoir. The filter support provided by the present invention can not only increase the noise transmission loss in the liquid reservoir, enhance the noise reduction effect of the liquid reservoir, and reduce the refrigerant flow noise, but also play an effective role in guiding the refrigerant in the liquid reservoir and reduce the flow loss in the liquid reservoir.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a filter support, a liquid storage device and a compressor. Background Art

[0002] The compressor is mainly composed of four parts: cylinder, motor, shell and liquid reservoir. The liquid reservoir is connected to the air conditioning pipeline and the compressor air intake. The liquid reservoir is used to prevent the liquid refrigerant of the air conditioning system from entering the compressor cylinder. When the liquid refrigerant enters the compressor cylinder, it is easy to cause the risk of liquid hammer, thereby affecting the reliability of the system. The liquid reservoir is provided with a filter, which is used to filter impurities to prevent impurities from entering the compressor and damaging the compressor. In addition, the liquid reservoir can also play a role in weakening the noise in certain frequency bands. The vibration generated during the operation of the compressor will be transmitted to the liquid reservoir to cause vibration noise, and the refrigerant flow and pressure pulsation will also cause noise in the liquid reservoir, and even be transmitted to the air conditioner indoor unit to cause transmission sound.

[0003] However, the ability of the liquid reservoir in the prior art to reduce noise is limited, and the filter bracket used in the prior art for the liquid reservoir is difficult to suppress noise, especially suppressing the refrigerant flow noise, and the improvement of flow loss is limited. In the prior art, the optimization of the filter bracket of the liquid reservoir to address the above problems is usually to change the shape of the opening of the filter bracket and / or the angle of the vertebral body of the bracket itself. Although the flow loss is improved to a certain extent, it still has little effect on improving noise, especially the refrigerant flow noise.

[0004] Therefore, it is necessary to invent a filter support, a liquid reservoir and a compressor to achieve the purpose of reducing flow loss and suppressing noise. Summary of the invention

[0005] The object of the present invention is to provide a filter support, a liquid storage device and a compressor to solve the problems in the prior art that the filter support has limited improvement on flow loss and is difficult to improve noise, especially refrigerant flow noise.

[0006] In order to solve the above technical problems, the present invention provides a filter support, which is applied to a liquid storage device, wherein the filter support comprises N layers of partitions connected in sequence and at least one guide channel penetrating the N layers of partitions, and an air cavity is provided between any two adjacent layers of the partitions, wherein N is a positive integer, and N≥2;

[0007] An isolation piece is provided between the guide channel and the air cavity;

[0008] The first partition plate of the N partition plates is close to the position of the air inlet of the liquid storage device, and each of the partition plates from the second partition plate to the Nth partition plate is provided with at least one air inlet hole, and the air inlet hole is connected to the air cavity;

[0009] The Nth layer of partition is provided with an air outlet hole for connecting to the air outlet pipe of the liquid storage device.

[0010] Optionally, the peripheries of any two adjacent layers of the partitions are connected via a closed structure, and the closed structure, the isolation member and the two layers of the partitions form the air cavity.

[0011] Optionally, the N layers of partitions are sequentially connected via at least one connecting column, the guide channel is arranged on the connecting column and along the axial direction of the connecting column, and the isolation member is a side wall of the connecting column.

[0012] Optionally, the first layer of partition is provided with a protrusion protruding toward the position of the air inlet of the liquid reservoir, and the protrusion is communicated with the air cavity.

[0013] Optionally, the inner diameter d of the air inlet hole satisfies the following relationship:

[0014] 0.3mm≤d≤0.48(D-d1),

[0015] Wherein, D is the diameter of the partition, and d1 is the outer diameter of the air outlet pipe of the liquid reservoir.

[0016] Optionally, the distance between the first layer of partitions and the Nth layer of partitions is greater than 15 mm.

[0017] The present invention also provides a liquid storage device, comprising the filter support as described above.

[0018] Optionally, a buckle is provided on the outer periphery of the filter bracket, and a buckle hole matching with the buckle is provided on the inner wall of the liquid reservoir.

[0019] Optionally, a filter is provided inside the liquid reservoir, and the filter is laid on one end of the filter bracket close to the air intake port of the liquid reservoir.

[0020] The present invention also provides a compressor, comprising the liquid accumulator as described above.

[0021] Compared with the prior art, the filter support, liquid storage device and compressor provided by the present invention have the following advantages:

[0022] (1) The filter support provided by the present invention comprises N layers of partitions connected in sequence and at least one guide channel penetrating the N layers of partitions, and there is an air cavity between any two adjacent layers of the partitions, wherein N is a positive integer and N≥2; an isolation member is provided between the guide channel and the air cavity; the first layer of the N layers of partitions is close to the position of the air inlet of the liquid reservoir, and each layer of the partitions from the second layer to the Nth layer of partitions is provided with at least one air inlet hole, and the air inlet hole is connected to the air cavity; the Nth layer of partitions is provided with an air outlet hole for connecting to the air outlet pipe of the liquid reservoir. Thus, the N-layer partitions can effectively block noise and increase the transmission loss of noise; the guide channel is used to allow the refrigerant entering from the air inlet of the liquid reservoir to flow into the liquid reservoir, and at the same time, the guide channel can guide and divert the refrigerant, thereby effectively reducing the flow loss of the refrigerant; the gaseous refrigerant can be guided into the air cavity through the air inlet, and at the same time, the setting position of the air inlet can prevent the liquid refrigerant from entering the air outlet pipe of the liquid reservoir, thereby avoiding the risk of liquid refrigerant being sucked into the compressor; the air inlet and the air cavity realize the contraction and expansion of the channel, which can cause the change of impedance during the noise propagation process and generate the reflection and interference of the sound energy, thereby reducing the sound energy radiated outward by the filter bracket to achieve the purpose of reducing noise; N-1 air cavities can be formed by the N-layer partitions, and when N is larger, the noise can be reduced more effectively; the air outlet can effectively ensure that the gaseous refrigerant can flow back to the compressor through the air outlet pipe of the liquid reservoir. The filter support provided by the present invention can significantly increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, especially effectively reducing the refrigerant flow noise. At the same time, the filter support can effectively guide the refrigerant in the liquid reservoir, thereby effectively reducing the flow loss in the liquid reservoir.

[0023] (2) Since the distance between the first layer of partitions and the Nth layer of partitions is greater than 15 mm, this arrangement can be used to set more layers of partitions according to actual conditions. By increasing the number of partitions, noise can be effectively blocked. At the same time, the accommodating space of the air cavity can be appropriately increased, and the expansion ratio of the air cavity relative to the air inlet can be increased, thereby more effectively increasing the transmission loss of noise in the liquid storage tank, weakening the flow noise of the gaseous refrigerant, and achieving a more effective sound insulation effect.

[0024] (3) Since the outer peripheries of any two adjacent layers of the partitions are connected by a closed structure, the closed structure, the isolation member and the air cavity are formed between the two layers of the partitions. Therefore, the filter bracket can abut against the inner wall of the liquid reservoir through the closed structure, thereby ensuring that the refrigerant entering from the air intake of the liquid reservoir only flows in through the guide channel. At the same time, the air cavity can provide an effective buffer space for the inflowing refrigerant.

[0025] (4) Since the N layers of partitions are connected by at least one connecting column, the guide channel is arranged on the connecting column and along the axial direction of the connecting column, and the isolating member is the side wall of the connecting column. Therefore, the air cavity and the guide channel can be effectively isolated from each other through the connecting column, which not only avoids the gas from being chaotic and ensures the guiding effect of the filter bracket on the refrigerant, but also avoids the liquid refrigerant from entering the air cavity, thereby effectively avoiding the risk of liquid hammer caused by the liquid refrigerant entering the compressor through the outlet pipe of the liquid storage device; by setting the isolating member as the side wall of the connecting column, it can not only effectively isolate the air cavity and the guide channel from each other, but also ensure that the air cavity has sufficient accommodating space and an expansion ratio relative to the air inlet hole, which is more conducive to the circulation of the gaseous refrigerant in the air cavity and reduces noise.

[0026] (5) Since the first layer of partition is provided with a protrusion protruding toward the position of the air inlet of the liquid reservoir, the protrusion is connected with the air cavity, thereby, the flow direction of the refrigerant flowing in from the air inlet of the liquid reservoir can be effectively guided by the protrusion, and the refrigerant is guided to the air inlet of the guide channel; the protrusion is connected with the air cavity, so that the air cavity adjacent to the protrusion has a larger accommodating space and expansion ratio, which is convenient for the circulation of the gaseous refrigerant in the air cavity and the suppression of noise.

[0027] (6) Since the inner diameter d of the air inlet hole satisfies the relationship: 0.3mm≤d≤0.48(D-d1), wherein D is the diameter of the partition, and d1 is the outer diameter of the air outlet pipe of the liquid reservoir, thus, by limiting the aperture size of the air inlet hole, it can effectively ensure that the air inlet hole is not set too large to affect the rigidity of the filter bracket, which is beneficial to improving the stability of the filter bracket, and it can also ensure that the air inlet hole is not set too small to affect the circulation of the refrigerant, which is beneficial to reducing the flow loss of the refrigerant. At the same time, it can also ensure that the air cavity has a suitable expansion ratio relative to the air inlet hole, which is beneficial to reducing the noise of a specific frequency.

[0028] (7) The liquid reservoir provided by the present invention includes the filter bracket as described above, and thus, the liquid reservoir provided by the present invention can significantly increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, and especially effectively reducing the refrigerant flow noise. At the same time, the refrigerant in the liquid reservoir is guided in a fixed direction, thereby effectively reducing the flow loss in the liquid reservoir. Since a buckle is provided on the outer periphery of the filter bracket, and a clamping hole matching the buckle is provided on the inner wall of the liquid reservoir, the buckle and the clamping hole can effectively realize the detachable connection between the filter bracket and the liquid reservoir housing, thereby facilitating the installation and removal of the filter bracket. In addition, since a filter is provided inside the liquid reservoir, the filter is laid on one end of the filter bracket close to the air intake port of the liquid reservoir. Thus, the refrigerant entering the liquid reservoir from the air intake port can be effectively filtered through the filter before flowing into the guide channel, so that the filtered refrigerant flows into the filter bracket, preventing impurities from flowing into the compressor through the air outlet pipe of the liquid reservoir and damaging the compressor.

[0029] (8) The compressor provided by the present invention includes the liquid reservoir as described above. Therefore, the compressor provided by the present invention can effectively improve the noise reduction effect of the liquid reservoir and increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir and effectively reducing noise, especially effectively reducing the refrigerant flow noise. At the same time, the refrigerant in the liquid reservoir is subject to the guidance effect of a fixed direction, which can also effectively reduce the flow loss of the refrigerant in the liquid reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall structure of the filter support provided by the first embodiment of the present invention when no closed structure is provided;

[0031] Figure 2 A front view of a filter support provided in a second embodiment of the present invention;

[0032] Figure 3 for Figure 2 A cross-sectional view of the filter support in the AA direction shown;

[0033] Figure 4 for Figure 2 A cross-sectional view of the filter support in the BB direction shown;

[0034] Figure 5 A schematic diagram of a partial structure of a liquid storage device provided in one embodiment of the present invention;

[0035] Figure 6 A simulation diagram comparing the noise transmission loss of a liquid reservoir provided in one embodiment of the present invention and an existing liquid reservoir.

[0036] The reference numerals are as follows:

[0037] 200 - filter support, 210 - partition, 211 - air inlet, 220 - connecting column, 221 - flow guide channel, 230 - protrusion, 240 - air outlet, 250 - hollow sleeve, 300 - liquid reservoir, 310 - air inlet, 320 - air outlet pipe. DETAILED DESCRIPTION

[0038] To make the purpose, advantages and features of the present invention more clear, the following Figures 1 to 6 The filter support, liquid storage device and compressor proposed in the present invention are further described in detail. It should be noted that the drawings are in a very simplified form and are not in precise proportions. They are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The core idea of ​​the present invention is to provide a filter bracket, a liquid storage tank and a compressor, so as to utilize the contraction and expansion of the channel to cause the change of impedance during the noise propagation process to produce the reflection and interference of the sound energy, so as to achieve the purpose of reducing noise, and can realize the diversion effect on the refrigerant, so as to achieve the purpose of reducing flow loss.

[0042] To realize the above idea, the present invention provides a filter support, please refer to Figures 1 to 5 ,in, Figure 1 The overall structural diagram of the filter support provided by the first embodiment of the present invention is schematically shown; Figure 2 A front view of a filter support provided by a second embodiment of the present invention is schematically shown; Figure 3 It is schematically given Figure 2 A cross-sectional view of the filter support in the AA direction shown; Figure 4 It is schematically given Figure 2 A cross-sectional view of the filter support in the BB direction shown; Figure 5 The partial structural diagram of the liquid storage device provided by the present invention is schematically shown. Figures 1 to 5As shown, the filter support 200 includes N layers of partitions 210 connected in sequence and at least one guide channel 221 passing through the N layers of partitions 210, and there is an air cavity between any two adjacent layers of the partitions 210, wherein N is a positive integer and N≥2; an isolation member is provided between the guide channel 221 and the air cavity; the first layer of partitions 210 among the N layers of partitions 210 is close to the position of the air inlet 310 of the liquid reservoir 300, and each layer of partitions 210 from the second layer of partitions 210 to the Nth layer of partitions 210 is provided with at least one air inlet hole 211, and the air inlet hole 211 is connected to the air cavity; the Nth layer of partitions 210 is provided with an air outlet hole 240 for connecting to the air outlet pipe 320 of the liquid reservoir 300. Thus, the N-layer partition 210 can effectively block noise and increase the transmission loss of noise; the guide channel 221 is used to allow the refrigerant entering from the air inlet of the liquid reservoir to flow into the liquid reservoir, and the guide channel 221 can guide and divert the refrigerant, thereby effectively reducing the flow loss of the refrigerant; the gaseous refrigerant can be guided into the air cavity through the air inlet 211, and the setting position of the air inlet 211 can prevent the liquid refrigerant from entering the air outlet pipe 320 of the liquid reservoir, thereby avoiding the liquid refrigerant from entering the air outlet pipe 320 of the liquid reservoir. The risk of the refrigerant being sucked into the compressor is reduced; the air inlet 211 and the air cavity realize the contraction and expansion of the channel, which can cause the change of impedance in the process of noise propagation and produce the reflection and interference of sound energy, thereby reducing the sound energy radiated outward by the filter support to achieve the purpose of reducing noise; N-1 air cavities can be formed by the N-layer partition 210, and when N is larger, the noise can be reduced more effectively; the air outlet 240 can effectively ensure that the gaseous refrigerant can flow back into the compressor through the outlet pipe 320 of the liquid reservoir 300. The filter support 200 provided by the present invention can significantly increase the noise transmission loss in the liquid reservoir 300, thereby improving the noise reduction effect of the liquid reservoir 300, effectively reducing noise, especially effectively reducing the refrigerant flow noise, and at the same time, the filter support 200 can effectively guide the refrigerant in the liquid reservoir 300, thereby effectively reducing the flow loss in the liquid reservoir 300.

[0043] It should be noted that the shape of the air inlet 211 can be a round hole, a square hole, etc.; the number of the air inlet holes 211 on each layer of the partition 210 can be one, two or more. When the number of the air inlet holes 211 is multiple, the distribution of the multiple air inlet holes 211 on the partition 210 is preferably uniformly and symmetrically distributed about the center of the partition 210. In other embodiments, the distribution of the multiple air inlet holes 211 on the partition 210 can also be non-uniform, for example: in a strip-shaped distribution, a fan-shaped distribution, a ring-shaped distribution or a combination of multiple schemes. Cloth, etc., and the situation where the sizes of multiple air inlets are inconsistent is also within the protection scope of the present invention; the air outlet hole 240 is used for the air outlet pipe 320 of the liquid reservoir 300 to be inserted so that the air outlet pipe 320 is connected to the air cavity; the filter bracket 200 can be made by splicing various parts injected with organic materials, and the various parts are spliced ​​in sequence by snaps. When the filter bracket 200 is only provided with two layers of the partition 210, it is preferred that the filter bracket 200 is made by splicing the upper half and the lower half injected with organic materials. In addition, in other embodiments, the filter bracket 200 can also be made by welding N partitions 210 formed by stamping in sequence. At this time, the material of the N partitions is preferably metal material.

[0044] Preferably, the distance between the first layer of partitions 210 and the Nth layer of partitions 210 is greater than 15 mm. Therefore, this arrangement can be used to set more layers of partitions 210 according to actual conditions, and the noise can be effectively blocked by increasing the number of partitions 210. At the same time, the accommodating space of the air cavity can be appropriately increased, and the expansion ratio of the air cavity relative to the air inlet 211 can be increased, thereby more effectively increasing the transmission loss of the noise in the liquid storage tank 300, weakening the flow noise of the gaseous refrigerant, and achieving a more effective sound insulation effect.

[0045] Preferably, radial or annular protrusions are provided on the Nth layer of partition plate 210. Thus, the rigidity of the partition plate 210 can be effectively increased by the protrusions, thereby ensuring the stability of the filter support 200.

[0046] like Figure 1 As shown, in the first embodiment, the peripheries of any two adjacent layers of partitions 210 of the filter support 200 are open, that is, not closed. After the filter support 200 is installed in the liquid reservoir 300, the peripheries of the two adjacent layers of partitions 210 are closed by the inner wall of the liquid reservoir 300, and the inner wall of the liquid reservoir 300, the isolation member, and the air cavity are formed between the two layers of the partitions 210. It should be noted that the filter support 200 and the inner wall of the liquid reservoir 300 are preferably connected by welding.

[0047] like Figures 2 to 4 As shown, in the second embodiment, the outer peripheries of any two adjacent layers of the partitions 210 are connected by a closed structure, and the closed structure, the spacer and the air cavity are formed between the two layers of the partitions 210. Thus, the filter support 200 can abut against the inner wall of the shell of the liquid reservoir 300 through the closed structure, which can ensure that the refrigerant entering from the air inlet 310 of the liquid reservoir 300 only flows in through the guide channel 221, and the air cavity can provide an effective buffer space for the inflowing refrigerant, facilitating the circulation of the gaseous refrigerant.

[0048] Preferably, the closed structure is a hollow sleeve 250 sleeved on the outer periphery of the N-layer partition 210, the hollow sleeve 250 and the filter holder 200 are connected in an integral manner, and the air cavity is formed by the inner wall of the hollow sleeve 250, the two adjacent layers of partitions 210, and the isolating member between the two layers of partitions 210. It should be noted that the filter holder 200 is connected to the inner wall of the liquid reservoir 300 in a detachable manner by snapping, which is convenient for the installation and removal of the filter holder 200.

[0049] Preferably, the N-layer partitions 210 are connected by at least one connecting column 220, the guide channel 221 is arranged on the connecting column 220 and arranged along the axial direction of the connecting column 220, and the isolating member is the side wall of the connecting column 220. Thus, the connecting column 220 can effectively isolate the air cavity from the guide channel 221, which can avoid the gas from being chaotic, ensure the guiding effect of the filter support 200 on the refrigerant, and prevent the liquid refrigerant from entering the air cavity, thereby effectively avoiding the risk of liquid hammer caused by the liquid refrigerant entering the compressor through the outlet pipe 320 of the liquid storage device 300; by setting the isolating member as the side wall of the connecting column 220, the air cavity can be effectively isolated from the guide channel 221, and the air cavity can be ensured to have sufficient accommodation space and an expansion ratio relative to the air inlet 211, which is more conducive to the circulation of the gaseous refrigerant in the air cavity and the reduction of noise.

[0050] It should be noted that the connection between the connecting column 220 and the partition 210 is at a right angle or a rounded angle; the number of the connecting columns 220 corresponds to the number of the guide channels 221; the connecting column 220 can be one, two or more. When there are multiple connecting columns 220, the multiple connecting columns 220 are evenly and symmetrically distributed about the center of the partition 210. The setting position of the connecting column 220 is away from the center of the partition 210 and close to the edge of the partition 210, and the air inlet 211 is provided between the connecting column 220 and the center of the partition 210.

[0051] Preferably, the first layer of partition plate 210 is provided with a protrusion 230 protruding toward the position of the air inlet 310 of the liquid reservoir 300, and the protrusion 230 is connected with the air cavity. Thus, the protrusion 230 can effectively guide the flow direction of the refrigerant flowing in from the air inlet 310 of the liquid reservoir 300, and guide the refrigerant to the air inlet of the guide channel 221; the protrusion 230 is connected with the air cavity, so that the air cavity adjacent to the protrusion 230 has a larger accommodation space and expansion ratio, which is convenient for the circulation of the gaseous refrigerant in the air cavity and suppresses noise.

[0052] Preferably, the protrusion 230 is disposed at the center of the first layer of the partition plate 210. Thus, the position of the protrusion 230 corresponds to the position of the air inlet 310 of the liquid storage device 300, and can more effectively guide the refrigerant flowing from the air inlet 310.

[0053] Preferably, the inner diameter d of the air inlet hole 211 satisfies the following relationship:

[0054] 0.3mm≤d≤0.48(D-d1),

[0055] Wherein, D is the diameter of the partition 210 , and d1 is the outer diameter of the air outlet pipe 320 of the liquid storage container 300 .

[0056] Therefore, by limiting the aperture size of the air inlet hole 211, it can effectively ensure that the air inlet hole 211 is not set too large to affect the rigidity of the filter support 200, which is beneficial to the stability of the filter support 200, and it can also ensure that the air inlet hole 211 is not set too small to affect the circulation of the refrigerant, which is beneficial to reducing the flow loss of the refrigerant. At the same time, it can also ensure that the air cavity has a suitable expansion ratio relative to the air inlet hole 211, which is beneficial to reducing the noise of a specific frequency. It should be noted that the diameters of the N layers of the partitions 210 are consistent, so as to match the liquid reservoir, which is more conducive to installing the filter support 200 in the liquid reservoir 300.

[0057] To realize the above idea, the present invention also provides a liquid storage device, including the filter support as described above. Figure 6 , which schematically shows a simulation diagram comparing the noise transmission loss of the liquid reservoir provided by the present invention and the existing liquid reservoir. Figure 6 In the figure, the vertical axis is the transmission loss TL (unit: dB), and the horizontal axis is the noise frequency f (unit: Hz). Figure 6 The noise transmission loss curves of the liquid reservoir in the prior art and the liquid reservoir provided by the present invention as a function of the noise frequency are respectively given. Figure 6It can be seen that in most frequency f bands, the noise transmission loss TL of the liquid reservoir provided by the present invention is greater than the noise transmission loss TL of the existing liquid reservoir, and, in a specific frequency range, the noise transmission loss TL of the liquid reservoir provided by the present invention is much greater than the noise transmission loss TL of the existing liquid reservoir. Therefore, it can be obtained that the liquid reservoir provided by the present invention can significantly increase the transmission loss of noise, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, especially effectively reducing the refrigerant flow noise, and the noise suppression effect for specific frequencies is significant. In addition, since the refrigerant in the liquid reservoir is guided in a fixed direction, the flow loss in the liquid reservoir can be more effectively reduced.

[0058] Preferably, a buckle is provided on the outer periphery of the filter support, and a clamping hole matching with the buckle is provided on the inner wall of the liquid reservoir. Thus, the buckle and the clamping hole can effectively realize a detachable connection between the filter support and the liquid reservoir housing, thereby facilitating the installation and removal of the filter support.

[0059] Preferably, a filter is provided inside the liquid reservoir, and the filter is laid on one end of the filter bracket close to the air inlet of the liquid reservoir. Thus, the filter can effectively filter the refrigerant entering the liquid reservoir from the air inlet before flowing into the guide channel, so that the filtered refrigerant flows into the filter bracket, preventing impurities from flowing into the compressor through the outlet pipe of the liquid reservoir and damaging the compressor.

[0060] To realize the above idea, the present invention also provides a compressor, including the above-mentioned liquid reservoir. Therefore, the compressor provided by the present invention can effectively improve the noise reduction effect of the liquid reservoir, increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, especially effectively reducing the refrigerant flow noise, and at the same time, the refrigerant in the liquid reservoir is guided in a fixed direction, which can also effectively reduce the flow loss of the refrigerant in the liquid reservoir.

[0061] In summary, compared with the prior art, the filter support, liquid reservoir and compressor provided by the present invention have the following advantages:

[0062] (1) The filter support provided by the present invention comprises N layers of partitions connected in sequence and at least one guide channel penetrating the N layers of partitions, and there is an air cavity between any two adjacent layers of the partitions, wherein N is a positive integer and N≥2; an isolation member is provided between the guide channel and the air cavity; the first layer of the N layers of partitions is close to the position of the air inlet of the liquid reservoir, and each layer of the partitions from the second layer to the Nth layer of partitions is provided with at least one air inlet hole, and the air inlet hole is connected to the air cavity; the Nth layer of partitions is provided with an air outlet hole for connecting to the air outlet pipe of the liquid reservoir. Thus, the N-layer partitions can effectively block noise and increase the transmission loss of noise; the guide channel is used to allow the refrigerant entering from the air intake of the liquid reservoir to flow into the liquid reservoir, and the guide channel can guide and divert the refrigerant, thereby effectively reducing the flow loss of the refrigerant; the gaseous refrigerant can be guided into the air cavity through the air inlet, and the air outlet can effectively ensure that the gaseous refrigerant can flow back into the compressor through the outlet pipe of the liquid reservoir. The filter support provided by the present invention can significantly increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, especially effectively reducing the refrigerant flow noise, and the filter support can effectively guide the refrigerant in the liquid reservoir, thereby effectively reducing the flow loss in the liquid reservoir.

[0063] (2) Since the distance between the first layer of partitions and the Nth layer of partitions is greater than 15 mm, this arrangement can be used to set more layers of partitions according to actual conditions. By increasing the number of partitions, noise can be effectively blocked. At the same time, the accommodating space of the air cavity can be appropriately increased, and the expansion ratio of the air cavity relative to the air inlet can be increased, thereby more effectively increasing the transmission loss of noise in the liquid storage tank, weakening the flow noise of the gaseous refrigerant, and achieving a more effective sound insulation effect.

[0064] (3) Since the outer peripheries of any two adjacent layers of the partitions are connected by a closed structure, the closed structure, the isolation member and the air cavity are formed between the two layers of the partitions. Therefore, the filter bracket can abut against the inner wall of the liquid reservoir through the closed structure, thereby ensuring that the refrigerant entering from the air intake of the liquid reservoir only flows in through the guide channel. At the same time, the air cavity can provide an effective buffer space for the inflowing refrigerant, thereby facilitating the circulation of the gaseous refrigerant.

[0065] (4) Since the N layers of partitions are connected by at least one connecting column, the guide channel is arranged on the connecting column and along the axial direction of the connecting column, and the isolating member is the side wall of the connecting column. Therefore, the air cavity and the guide channel can be effectively isolated from each other through the connecting column, which not only avoids the gas from being chaotic and ensures the guiding effect of the filter bracket on the refrigerant, but also avoids the liquid refrigerant from entering the air cavity, thereby effectively avoiding the risk of liquid hammer caused by the liquid refrigerant entering the compressor through the outlet pipe of the liquid storage device; by setting the isolating member as the side wall of the connecting column, it can not only effectively isolate the air cavity and the guide channel from each other, but also ensure that the air cavity has sufficient accommodating space and an expansion ratio relative to the air inlet hole, which is more conducive to the circulation of the gaseous refrigerant in the air cavity and reduces noise.

[0066] (5) Since the first layer of partition is provided with a protrusion protruding toward the position of the air inlet of the liquid reservoir, the protrusion is connected with the air cavity, thereby, the flow direction of the refrigerant flowing in from the air inlet of the liquid reservoir can be effectively guided by the protrusion, and the refrigerant is guided to the air inlet of the guide channel; the protrusion is connected with the air cavity, so that the air cavity adjacent to the protrusion has a larger accommodating space and expansion ratio, which is convenient for the circulation of the gaseous refrigerant in the air cavity and the suppression of noise.

[0067] (6) Since the inner diameter d of the air inlet hole satisfies the relationship: 0.3mm≤d≤0.48(D-d1), wherein D is the diameter of the partition, and d1 is the outer diameter of the air outlet pipe of the liquid reservoir, thus, by limiting the aperture size of the air inlet hole, it can effectively ensure that the air inlet hole is not set too large to affect the rigidity of the filter bracket, which is beneficial to improving the stability of the filter bracket, and it can also ensure that the air inlet hole is not set too small to affect the circulation of the refrigerant, which is beneficial to reducing the flow loss of the refrigerant. At the same time, it can also ensure that the air cavity has a suitable expansion ratio relative to the air inlet hole, which is beneficial to reducing the noise of a specific frequency.

[0068] (7) The liquid reservoir provided by the present invention includes the filter bracket as described above, and thus, the liquid reservoir provided by the present invention can significantly increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir, effectively reducing noise, and especially effectively reducing the refrigerant flow noise. At the same time, the refrigerant in the liquid reservoir is guided in a fixed direction, thereby effectively reducing the flow loss in the liquid reservoir. Since a buckle is provided on the outer periphery of the filter bracket, and a clamping hole matching the buckle is provided on the inner wall of the liquid reservoir, the buckle and the clamping hole can effectively realize the detachable connection between the filter bracket and the liquid reservoir housing, thereby facilitating the installation and removal of the filter bracket. In addition, since a filter is provided inside the liquid reservoir, the filter is laid on one end of the filter bracket close to the air intake port of the liquid reservoir. Thus, the refrigerant entering the liquid reservoir from the air intake port can be effectively filtered through the filter before flowing into the guide channel, so that the filtered refrigerant flows into the filter bracket, preventing impurities from flowing into the compressor through the air outlet pipe of the liquid reservoir and damaging the compressor.

[0069] (8) The compressor provided by the present invention includes the liquid reservoir as described above. Therefore, the compressor provided by the present invention can effectively improve the noise reduction effect of the liquid reservoir and increase the noise transmission loss in the liquid reservoir, thereby improving the noise reduction effect of the liquid reservoir and effectively reducing noise, especially effectively reducing the refrigerant flow noise. At the same time, the refrigerant in the liquid reservoir is subject to the guidance effect of a fixed direction, which can also effectively reduce the flow loss of the refrigerant in the liquid reservoir.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A filter support, applied to a liquid storage device, characterized in that: It comprises N layers of partitions connected in sequence and at least one guide channel penetrating the N layers of partitions, wherein the guide channel is used to allow the refrigerant entering from the air inlet of the liquid storage device to flow into the liquid storage device; There is an air cavity between any two adjacent layers of the partitions, where N is a positive integer and N≥2; An isolator is provided between the guide channel and the air cavity; the N layers of partitions are sequentially connected by at least one connecting column, the guide channel is provided on the connecting column and is provided along the axial direction of the connecting column, and the isolator is a side wall of the connecting column; the isolator is used to isolate the air cavity and the guide channel from each other; The first partition plate of the N partition plates is close to the position of the air inlet of the liquid storage device, and each of the partition plates from the second partition plate to the Nth partition plate is provided with at least one air inlet hole, and the air inlet hole is connected to the air cavity; The Nth layer of partition is provided with an air outlet hole for connecting to the air outlet pipe of the liquid storage device.

2. The filter support according to claim 1, characterized in that: The peripheries of any two adjacent layers of the partitions are connected via a closed structure, and the closed structure, the isolation member and the two layers of the partitions form the air cavity.

3. The filter support according to claim 1, characterized in that: The first layer of partition is provided with a protrusion protruding toward the position of the air inlet of the liquid storage device, and the protrusion is communicated with the air cavity.

4. The filter support according to claim 1, characterized in that: The inner diameter d of the air inlet hole satisfies the following relationship: 0.3mm ≤ d ≤ 0.48 (D-d1), Wherein, D is the diameter of the partition, and d1 is the outer diameter of the air outlet pipe of the liquid reservoir.

5. The filter support according to claim 1, characterized in that: The distance between the first layer of separators and the Nth layer of separators is greater than 15 mm.

6. A liquid storage device, characterized in that: It comprises a filter support as described in any one of claims 1 to 5.

7. The liquid reservoir according to claim 6, characterized in that A buckle is arranged on the outer periphery of the filter support, and a clamping hole matched with the buckle is arranged on the inner wall of the liquid storage container.

8. The liquid reservoir according to claim 6, characterized in that A filter screen is arranged inside the liquid reservoir, and the filter screen is laid on one end of the filter screen bracket close to the air inlet of the liquid reservoir.

9. A compressor, characterized in that: Comprising a liquid reservoir as described in any one of claims 6 to 8.

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