Noise reduction assembly for throttling device, throttling device and refrigeration equipment

Abstract

The utility model relates to the technical field of household appliances, and discloses a noise reduction assembly for a throttling device, the throttling device comprises a filter and an electronic expansion valve, and the filter communicates with the electronic expansion valve through a refrigerant circulation loop. The noise reduction assembly comprises a first filter screen assembly and a second filter screen assembly. The first filter screen assembly is arranged on the side, close to the filter, of the refrigerant circulation loop. The second filter screen assembly is arranged on the side, close to the electronic expansion valve, of the refrigerant circulation loop. And the flow direction of a refrigerant in the refrigerant circulation loop is limited to flow from the filter to the throttling device. According to the arrangement, before the refrigerant flows into the electronic expansion valve, the first filter screen assembly and the second filter screen assembly can mix the two-phase refrigerant, noise generated when the refrigerant flows into the throttling device can be avoided, the hearing feeling of a user is better, and the use experience of the user is improved. Meanwhile, the utility model further discloses a throttling device and refrigeration equipment.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a noise reduction component for a throttling device, a throttling device, and a refrigeration device. Background Art

[0002] At present, air conditioners have been widely used in people's daily lives. People can cool or heat the indoor environment through air conditioners to adjust the indoor temperature. However, with the development of society and the improvement of living standards, people's requirements for the quality of life are also getting higher and higher. The refrigeration system in an air conditioner usually includes a compressor, a throttling device, two heat exchangers, and other components. The throttling device can be an electronic expansion valve, which is used to throttle and regulate the refrigerant to achieve precise control of the refrigerant flow rate.

[0003] In the related art, users also use multi-split air conditioners, that is, one or more outdoor units are connected to two or more indoor units through pipes. Multi-split air conditioners have the advantages of high energy efficiency, good comfort, high flexibility, high aesthetic value, reliable operation, and wide application range.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In the related art, when the existing multi-split system is operating, since the refrigerant in the pipeline is in a gas-liquid two-phase flow state and the refrigerant in the gas-liquid two-phase state is unstable, refrigerant throttling noise will be generated when the refrigerant flows through the electronic expansion valve, bringing an unpleasant experience to the user's auditory sense and reducing the user's experience.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a noise reduction component for a throttling device, a throttling device, and a refrigeration device. A noise reduction component is provided at a position corresponding to the throttling device in the refrigerant circulation loop. Before the refrigerant in the refrigerant circulation loop flows into the throttling device, it will first flow into the noise reduction component. At this time, the noise reduction component can prevent noise from being generated when the refrigerant flows into the throttling device, resulting in a better auditory sense for the user and improving the user's experience.

[0009] An embodiment of the present disclosure provides a noise reduction component for a throttling device. The throttling device includes a filter and an electronic expansion valve, and the filter and the electronic expansion valve are connected through a refrigerant circulation loop. The above-mentioned noise reduction component includes: a first filter screen assembly and a second filter screen assembly. The first filter screen assembly is arranged on one side of the refrigerant circulation loop close to the filter; the second filter screen assembly is arranged on one side of the refrigerant circulation loop close to the electronic expansion valve; wherein, the flow direction of the refrigerant in the refrigerant circulation loop is defined as flowing from the filter to the throttling device.

[0010] In some embodiments, the first filter screen assembly includes a plurality of first filter screens, and the first filter screens are used for filtering the refrigerant flowing through the first filter screen assembly; the second filter screen assembly includes a plurality of second filter screens, and the second filter screens are used for filtering the refrigerant flowing through the second filter screen assembly.

[0011] In some embodiments, the meshes of the plurality of first filter screens are arranged in a staggered form; the meshes of the plurality of second filter screens are arranged in a staggered form.

[0012] In some embodiments, the number of the first filter screens is greater than or equal to a first number, and the number of the second filter screens is greater than or equal to a second number; wherein, the number of the second filter screens is greater than the number of the first filter screens.

[0013] In some embodiments, the size of the meshes of the second filter screens is smaller than the size of the meshes of the first filter screens.

[0014] An embodiment of the present disclosure further provides a throttling device, including: a filter, an electronic expansion valve, and the above-mentioned noise reduction component for the throttling device. The filter is used for filtering the refrigerant flowing through it; the electronic expansion valve is used for throttling the refrigerant flowing through it, and the electronic expansion valve is connected to the filter through a refrigerant circulation loop; the above-mentioned noise reduction component for the throttling device is arranged in the refrigerant circulation loop; wherein, the flow direction of the refrigerant in the refrigerant circulation loop is defined as flowing from the filter to the electronic expansion valve.

[0015] In some embodiments, a first clamping portion is arranged on one side of the refrigerant circulation loop close to the filter, and the first filter screen assembly can be clamped to the first clamping portion; a second clamping portion is arranged on one side of the refrigerant circulation loop close to the electronic expansion valve, and the second filter screen assembly can be clamped to the second clamping portion.

[0016] In some embodiments, a first clamping groove is arranged on one side of the refrigerant circulation loop close to the filter to form the first clamping portion, and the edge of the first filter screen assembly can be embedded into the first clamping groove; a second clamping groove is arranged on one side of the refrigerant circulation loop close to the electronic expansion valve to form the second clamping portion, and the edge of the second filter screen assembly can be embedded into the second clamping groove.

[0017] In some embodiments, the refrigerant circulation loop includes: a main pipe section, a first detachable section, and a second detachable section. The first detachable section is detachably disposed at one end of the main pipe section close to the filter to connect the main pipe section and the filter, and a first clamping portion is provided on the first detachable section; the second detachable section is detachably disposed on one side of the main pipe section close to the electronic expansion valve to connect the main pipe section and the electronic expansion valve, and a second clamping portion is provided on the second detachable section.

[0018] Embodiments of the present disclosure also provide a refrigeration device including: the above noise reduction component for the throttling device, or, the above throttling device.

[0019] A noise reduction component for a throttling device, a throttling device, and a refrigeration device provided by embodiments of the present disclosure can achieve the following technical effects:

[0020] Embodiments of the present disclosure provide a noise reduction component for a throttling device. The throttling device includes a filter and an electronic expansion valve, and the filter and the electronic expansion valve are connected through a refrigerant circulation loop. The above noise reduction component includes: a first filter screen assembly and a second filter screen assembly. The first filter screen assembly is disposed on one side of the refrigerant circulation loop close to the filter; the second filter screen assembly is disposed on one side of the refrigerant circulation loop close to the electronic expansion valve; wherein, the flow direction of the refrigerant in the refrigerant circulation loop is defined as flowing from the filter to the throttling device. In this way, when the refrigeration device is operating, the refrigerant will flow through the filter, the first filter screen assembly, and the second filter screen assembly in sequence, and then flow into the throttling device. The filter can first filter the refrigerant flowing through it to remove impurities in the refrigerant. When the refrigerant flows through the first filter screen assembly and the second filter screen assembly in sequence, the first filter screen assembly and the second filter screen assembly can respectively mix the two-phase refrigerant. With such a setting, before the refrigerant flows into the electronic expansion valve, the first filter screen assembly and the second filter screen assembly can mix the two-phase refrigerant, which can avoid generating noise when the refrigerant flows into the throttling device, resulting in a better listening experience for the user and improving the user experience.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0023] Figure 1 is a schematic structural diagram of a throttling device provided by an embodiment of the present disclosure;

[0024] Figure 2 is a partial structural diagram of a throttling device provided by an embodiment of the present disclosure;

[0025] Figure 3 It is a partial structural schematic diagram of another throttling device provided by an embodiment of the present disclosure;

[0026] Figure 4 It is a structural schematic diagram of a first filter assembly provided by an embodiment of the present disclosure;

[0027] Figure 5 It is a structural schematic diagram of a second filter assembly provided by an embodiment of the present disclosure;

[0028] Figure 6 It is a structural schematic diagram of a refrigerant circulation circuit provided by an embodiment of the present disclosure.

[0029] Reference numerals:

[0030] 11: Filter; 12: Electronic expansion valve;

[0031] 21: First filter assembly; 211: First filter; 212: First filter frame; 22: Second filter assembly; 221: Second filter; 222: Second filter frame;

[0032] 30: Refrigerant circulation circuit; 31: Main pipe section; 32: First detachable section; 321: First clamping portion; 33: Second detachable section; 331: Second clamping portion. Detailed implementation manners

[0033] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner.

[0034] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above accompanying drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "back" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated device, element, or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] Unless otherwise specified, the term "plurality" means two or more.

[0038] In the embodiments of the present disclosure, the character " / " indicates that the front and rear objects are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" is an associative relationship describing an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0040] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0041] In the prior art, the filter of the air conditioner is only provided with a single-layer filter screen, which can only play the role of filtering the refrigerant. However, the refrigerant in the multi-connected air conditioner is in a gas-liquid two-phase flow state, and the refrigerant in the gas-liquid two-phase state is relatively unstable. When the gas-liquid two-phase refrigerant passes through the filter and the electronic expansion valve, the gas-liquid two-phase refrigerant cannot be more evenly mixed. Therefore, the refrigerant is still in the gas-liquid two-phase state. After throttling by the electronic expansion valve, obvious refrigerant throttling noise will be generated, bringing an unpleasant experience to the user's auditory perception and reducing the user's usage experience.

[0042] Such as Figures 1 to 6As shown in the figure, the embodiments of the present disclosure provide a noise reduction component for a throttling device, a throttling device, and a refrigeration device. A noise reduction component is provided at a position corresponding to the throttling device in the refrigerant circulation loop 30. Before the refrigerant in the refrigerant circulation loop 30 flows into the throttling device, it will first flow into the noise reduction component. At this time, the noise reduction component can prevent noise from being generated when the refrigerant flows into the throttling device, resulting in a better listening experience for the user and improving the user experience.

[0043] As Figures 1 to 6 shown in the figure, the embodiments of the present disclosure provide a noise reduction component for a throttling device. The throttling device includes a filter 11 and an electronic expansion valve 12, and the filter 11 and the electronic expansion valve 12 are connected through the refrigerant circulation loop 30. The above-mentioned noise reduction component includes: a first filter screen 211 component 21 and a second filter screen 221 component 22. The first filter screen 211 component 21 is arranged on one side of the refrigerant circulation loop 30 close to the filter 11; the second filter screen 221 component 22 is arranged on one side of the refrigerant circulation loop 30 close to the electronic expansion valve 12; wherein, the flow direction of the refrigerant in the refrigerant circulation loop 30 is defined as flowing from the filter 11 to the throttling device.

[0044] Specifically, the throttling device includes a filter 11 and an electronic expansion valve 12 connected through the refrigerant circulation loop 30, and the filter 11 is arranged upstream of the electronic expansion valve 12 so that the refrigerant first flows through the filter 11 and then flows to the electronic expansion valve 12. The first filter screen 211 component 21 and the second filter screen 221 component 22 are arranged in the refrigerant circulation loop 30 between the filter 11 and the electronic expansion valve 12, and the first filter screen 211 component 21 is located on the side of the second filter screen 221 component 22 close to the filter 11.

[0045] When the refrigeration device is operating, the refrigerant will flow through the filter 11, the first filter screen 211 component 21, and the second filter screen 221 component 22 in sequence and then flow into the throttling device. The filter 11 can first filter the refrigerant flowing through it to remove impurities in the refrigerant. When the refrigerant flows through the first filter screen 211 component 21, the first filter screen 211 component 21 can break up the gas-liquid two-phase refrigerant so that the gas-liquid two-phase refrigerant is preliminarily mixed. When the mixed refrigerant flows through the second filter screen 221 component 22, the second filter screen 221 component 22 can further break up the refrigerant to make the refrigerant closer to a pure liquid refrigerant.

[0046] With such an arrangement, before the refrigerant flows into the electronic expansion valve 12, the first filter screen 211 component 21 and the second filter screen 221 component 22 can mix the two-phase refrigerant, which can prevent noise from being generated when the refrigerant flows into the throttling device, resulting in a better listening experience for the user and improving the user experience.

[0047] It can be understood that in the theoretical state, when the indoor unit of a multi-connected air conditioner operates in cooling mode, the refrigerant releases heat in the outdoor unit condenser, and the outlet of the outdoor unit stop valve is in a subcooled state. However, in actual installation, the refrigerant circulation circuit 30 is relatively long, and there are bends and kinks in the refrigerant circulation circuit 30, resulting in a relatively large resistance. This causes a certain pressure loss when the refrigerant flows in the refrigerant circulation circuit 30, resulting in the refrigerant changing to a gas-liquid two-phase flow state at the inlet of the indoor unit liquid pipe. Therefore, the gaseous refrigerant in the liquid refrigerant is broken by the first filter 211 assembly 21 and the second filter 221 assembly 22 to form gaseous refrigerant with relatively small and basically consistent sizes. When the small-size gaseous refrigerant passes through the valve body of the electronic expansion valve 12, it can effectively reduce the refrigerant noise generated by the collision and rupture of large-size bubbles with the valve body, further improving the user experience.

[0048] At the same time, when the refrigerant flows through the first filter 211 assembly 21 and the second filter 221 assembly 22, the first filter 211 assembly 21 and the second filter 221 assembly 22 can have the effect of decelerating the refrigerant, reducing the speed at which the refrigerant impacts the valve body of the electronic expansion valve 12, further reducing the refrigerant noise, and improving the user experience.

[0049] As Figure 4 and Figure 5 shown, in some embodiments, the first filter 211 assembly 21 includes a plurality of first filters 211, and the first filters 211 are used to filter the refrigerant flowing through the first filter 211 assembly 21; the second filter 221 assembly 22 includes a plurality of second filters 221, and the second filters 221 are used to filter the refrigerant flowing through the second filter 221 assembly 22.

[0050] Specifically, the first filter 211 assembly 21 further includes a first filter frame, and a plurality of first filters 211 are installed on the first filter frame in a parallel manner. The gas-liquid two-phase refrigerant can be gradually broken up layer by layer by the multiple first filters 211 when flowing through the first filter 211 assembly 21, so as to further improve the effect of preliminary mixing of the gas-liquid two-phase refrigerant. Similarly, the second filter 221 assembly 22 further includes a second filter frame, and a plurality of second filters 221 are installed on the second filter frame in a parallel manner. The preliminarily mixed refrigerant can be gradually broken up layer by layer by the multiple second filters 221 when flowing through the second filter 221 assembly 22, so as to further improve the mixing effect of the refrigerant flowing through it.

[0051] As Figure 4 and Figure 5 shown, in some embodiments, the meshes of the multiple first filters 211 are arranged in a staggered form; the meshes of the multiple second filters 221 are arranged in a staggered form.

[0052] Specifically, when the first filter screen 211 assembly 21 includes a plurality of first filter screens 211, the positions of the mesh portions of any one first filter screen 211 correspond to the mesh openings of the adjacent first filter screens 211. Similarly, when the second filter screen 221 assembly 22 includes a plurality of second filter screens 221, the positions of the mesh portions of any one second filter screen 221 correspond to the mesh openings of the adjacent second filter screens. With such an arrangement, the effect of the first filter screen 211 assembly 21 and the second filter screen 221 assembly 22 on the mixing of the gas-liquid two-phase refrigerant can be further improved.

[0053] Optionally, the distance between any one first filter screen 211 and the adjacent first filter screen 211 is a preset distance to avoid blocking the flow of the refrigerant. Similarly, the distance between any one second filter screen 221 and the adjacent second filter screen 221 is a preset distance.

[0054] Optionally, the above-mentioned preset distance is greater than or equal to 1 mm. For example, the preset distance can be 1 mm, 1.5 mm, or 2 mm.

[0055] As Figure 4 and Figure 5 As shown, in some embodiments, the number of the first filter screens 211 is greater than or equal to a first number, and the number of the second filter screens 221 is greater than or equal to a second number; wherein, the number of the second filter screens 221 is greater than the number of the first filter screens 211.

[0056] Specifically, the number of the first filter screens 211 is greater than or equal to 2. For example, the number of the first filter screens 211 can be 2, 3, 4, or 5. The number of the second filter screens 221 is greater than or equal to 6. For example, the number of the second filter screens 221 can be 6, 7, 8, or 9.

[0057] In some embodiments, the size of the mesh openings of the second filter screens 221 is smaller than the size of the mesh openings of the first filter screens 211.

[0058] Specifically, making the size of the mesh openings of the second filter screens 221 smaller than the size of the mesh openings of the first filter screens 211 can ensure the effect of the second filter screens 221 on further mixing the mixed refrigerant mixed by the first filter screens 211. At the same time, it can also reduce the influence of the first filter screens 211 on the flow of the refrigerant while ensuring the mixing effect of the refrigerant.

[0059] As Figures 1 to 6As shown, an embodiment of the present disclosure further provides a throttling device, including: a filter 11, an electronic expansion valve 12, and the above-mentioned noise reduction component for the throttling device. The filter 11 is used to filter the refrigerant flowing through it; the electronic expansion valve 12 is used to throttle the refrigerant flowing through it, and the electronic expansion valve 12 is connected to the filter 11 through a refrigerant circulation circuit 30; the above-mentioned noise reduction component for the throttling device is arranged in the refrigerant circulation circuit 30; wherein, the direction of refrigerant flow in the refrigerant circulation circuit 30 is defined as flowing from the filter 11 to the electronic expansion valve 12.

[0060] Specifically, the filter 11 and the electronic expansion valve 12 are connected through the refrigerant circulation circuit 30, and when the refrigerant flows from the filter 11 to the electronic expansion valve 12, the first filter screen 211 component 21 and the second filter screen 221 component 22 of the noise reduction component can mix the refrigerant to reduce the noise of the refrigerant flowing into the electronic expansion valve 12.

[0061] With such a setting, before the refrigerant flows into the electronic expansion valve 12, the first filter screen 211 component 21 and the second filter screen 221 component 22 can mix the two-phase refrigerant, which can avoid generating noise when the refrigerant flows into the throttling device, resulting in a better listening experience for users and improving the user experience.

[0062] As Figure 1 、 Figure 2 、 Figure 3 and Figure 6 As shown, in some embodiments, a first clamping portion 321 is arranged on one side of the refrigerant circulation circuit 30 close to the filter 11, and the first filter screen 211 component 21 can be clamped to the first clamping portion 321; a second clamping portion 331 is arranged on one side of the refrigerant circulation circuit 30 close to the electronic expansion valve 12, and the second filter screen 221 component 22 can be clamped to the second clamping portion 331.

[0063] Specifically, the first filter screen 211 component 21 can be clamped to the first clamping portion 321 for installation in the refrigerant circulation circuit 30, or detached from the first clamping portion 321 for disassembly from the refrigerant circulation circuit 30. Similarly, the second filter screen 221 component 22 can be clamped to the second clamping portion 331 for installation in the refrigerant circulation circuit 30, or detached from the second clamping portion 331 for disassembly from the refrigerant circulation circuit 30. With such a setting, it is more convenient for users to install or disassemble the first filter screen 211 component 21 and the second filter screen 221 component 22.

[0064] As Figure 6As shown, in some embodiments, a first clamping groove is provided on one side of the refrigerant circulation circuit 30 close to the filter 11 to form a first clamping portion 321, and the edge of the first filter screen 211 assembly 21 can be embedded in the first clamping groove; a second clamping groove is provided on one side of the refrigerant circulation circuit 30 close to the electronic expansion valve 12 to form a second clamping portion 331, and the edge of the second filter screen 221 assembly 22 can be embedded in the second clamping groove.

[0065] Specifically, the first filter screen frame of the first filter screen 211 assembly 21 can be clamped in the first clamping groove to mount the first filter screen 211 assembly 21 on the refrigerant circulation circuit 30. With such a setting, the first filter screen 211 assembly 21 and the refrigerant circulation circuit 30 can be more closely matched to prevent the refrigerant from flowing out through the gap at the connection between the first filter screen 211 assembly 21 and the refrigerant circulation circuit 30. Similarly, the second filter screen frame of the second filter screen 221 assembly 22 can be clamped in the second clamping groove to mount the second filter screen 221 assembly 22 on the refrigerant circulation circuit 30.

[0066] As Figure 6 shown, in some embodiments, the refrigerant circulation circuit 30 includes: a main pipe section 31, a first detachable section 32, and a second detachable section 33. The first detachable section 32 is detachably arranged at one end of the main pipe section 31 close to the filter 11 to connect the main pipe section 31 and the filter 11, and the first clamping portion 321 is arranged on the first detachable section 32; the second detachable section 33 is detachably arranged on one side of the main pipe section 31 close to the electronic expansion valve 12 to connect the main pipe section 31 and the electronic expansion valve 12, and the second clamping portion 331 is arranged on the second detachable section 33.

[0067] Specifically, both ends of the first detachable section 32 are detachably arranged on the main pipe section 31 and the filter 11 respectively to connect the main pipe section 31 and the filter 11. Among them, the first filter screen 211 assembly 21 is clamped to the first clamping portion 321 of the first detachable section 32. In this way, the user can first remove the first detachable section 32 from the main pipe section 31 and the filter 11, and then install or disassemble the first filter screen 211 assembly 21 from the first detachable section 32, which is more convenient for the user to install or disassemble the first filter screen 211 assembly 21. Similarly, both ends of the second detachable section 33 are detachably arranged on the main pipe section 31 and the electronic expansion valve 12 respectively to connect the main pipe section 31 and the filter 11. Among them, the second filter screen 221 assembly 22 is clamped to the second clamping portion 331 of the second detachable section 33.

[0068] As Figures 1 to 6 shown, the embodiments of the present disclosure also provide a refrigeration device including: the above noise reduction assembly for the throttling device, or the above throttling device.

[0069] By using the noise reduction component or throttling device of the present application for the throttling device, it is possible to avoid the generation of noise when the refrigerant flows into the throttling device, resulting in a better listening experience for users and improving the user experience.

[0070] The above description and the drawings fully illustrate the disclosed embodiments of the present application, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The disclosed embodiments of the present application are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A noise reduction component for a throttling device, the throttling device comprising a filter and an electronic expansion valve, the filter and the electronic expansion valve are connected through a refrigerant circulation loop, characterized in that: The noise reduction component comprises: A first filter assembly is disposed on a side of the refrigerant circulation loop close to the filter; and, The second filter assembly is arranged on a side of the refrigerant circulation loop close to the electronic expansion valve; The refrigerant flow direction in the refrigerant circulation loop is limited to flow from the filter to the throttling device.

2. The noise reduction assembly according to claim 1, characterized in that: The first filter assembly includes a plurality of first filters, and the first filters are used to filter the refrigerant flowing through the first filter assembly; and, The second filter assembly includes a plurality of second filter assemblies, and the second filter is used for filtering the refrigerant flowing through the second filter assembly.

3. The noise reduction assembly according to claim 2, characterized in that: The meshes of the plurality of first filter screens are arranged in a staggered manner; and, The meshes of the plurality of second filter screens are arranged in a staggered manner.

4. The noise reduction assembly according to claim 2, characterized in that: The number of the first filter screens is greater than or equal to a first number, and the number of the second filter screens is greater than or equal to a second number; The number of the second filter screens is greater than the number of the first filter screens.

5. The noise reduction assembly according to claim 2, characterized in that: The size of the mesh of the second filter is smaller than the size of the mesh of the first filter.

6. A throttling device, characterized in that: include: A filter, used to filter the refrigerant flowing therethrough; an electronic expansion valve, used for throttling the refrigerant flowing therethrough, the electronic expansion valve being connected to the filter via a refrigerant circulation loop; and, The noise reduction component for a throttling device according to any one of claims 1 to 5, arranged in a refrigerant circulation circuit; The direction of refrigerant flow in the refrigerant circulation loop is limited to flow from the filter to the electronic expansion valve.

7. The throttling device according to claim 6, characterized in that: A first clamping portion is provided on one side of the refrigerant circulation loop close to the filter, and the first filter assembly can be clamped on the first clamping portion; and, A second clamping portion is provided on one side of the refrigerant circulation loop close to the electronic expansion valve, and the second filter assembly can be clamped on the second clamping portion.

8. The throttling device according to claim 7, characterized in that: A first clamping groove is provided on one side of the refrigerant circulation loop close to the filter to form a first clamping portion, and the edge of the first filter assembly can be embedded in the first clamping groove; and, A second clamping groove is arranged on one side of the refrigerant circulation loop close to the electronic expansion valve to form a second clamping portion, and the edge of the second filter assembly can be embedded in the second clamping groove.

9. The throttling device according to claim 7, characterized in that: The refrigerant circulation circuit includes: Supervisor section; A first disassembly section is detachably disposed at one end of the main pipe section close to the filter to connect the main pipe section and the filter, and a first clamping portion is disposed at the first disassembly section; and, The second disassembly section is detachably arranged on a side of the main pipe section close to the electronic expansion valve to connect the main pipe section and the electronic expansion valve, and the second clamping portion is arranged on the second disassembly section.

10. A refrigeration device, characterized in that: include: A noise reduction component for a throttling device as claimed in any one of claims 1 to 5, or a throttling device as claimed in any one of claims 6 to 9.

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