CN221005584U - Filtering component, throttling device and air conditioner - Google Patents

Abstract

The utility model relates to the technical field of air conditioners, and provides a filter assembly, a throttling device and an air conditioner, wherein the filter assembly comprises: the mixing part comprises a cavity section and a pipe body section communicated with the cavity section, and the inner diameter of the cavity section is larger than that of the pipe body section; the filtering part is communicated with the cavity section of the mixing part, and a plurality of layers of filter screens are stacked in the inner cavity of the filtering part. According to the filter assembly provided by the utility model, the flowing refrigerant can be fully mixed by arranging the mixing part and the filtering part. Specifically, when the high-speed refrigerant flows through the cavity section, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continuously flows to the filtering part, the gaseous refrigerant is completely scattered and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve, has avoided producing the noise and has brought bad experience on the sense of hearing for the user.

Description

Filtering component, throttling device and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a filter assembly, a throttling device and an air conditioner.

Background

The refrigeration system in the air conditioner generally comprises a compressor, a throttling device, two heat exchangers and other parts, wherein the throttling device can adopt an electronic expansion valve for throttling adjustment of the refrigerant, and the electronic expansion valve can realize relatively accurate control to improve the energy efficiency of the system.

When the refrigerating system is in operation, when the refrigerant passes through the electronic expansion valve, because the refrigerant in the pipeline is in a gas-liquid two-phase flow state, noise can be generated when the unstable refrigerant flows through the electronic expansion valve, and poor experience is brought to the hearing of a user.

Disclosure of utility model

The utility model provides a filter assembly, a throttling device and an air conditioner, which are used for solving the defect that noise is possibly generated when an unstable refrigerant flows through an electronic expansion valve in the prior art, and bad experience is brought to the hearing of a user, realizing that the sound generated when the refrigerant flows through the electronic expansion valve is more stable, avoiding the generation of noise and bringing bad experience to the hearing of the user.

The present utility model provides a filter assembly comprising:

The mixing part comprises a cavity section and a pipe body section communicated with the cavity section, and the inner diameter of the cavity section is larger than that of the pipe body section;

the filtering part is communicated with the cavity section of the mixing part, and a plurality of layers of filter screens are stacked in the inner cavity of the filtering part.

According to the filter assembly provided by the utility model, the pipe body section is provided with the positioning piece for positioning the mixing part.

According to the filter assembly provided by the utility model, the mixing part further comprises a buffer section, and the buffer section is connected between the cavity section and the filter part.

According to the filter assembly provided by the utility model, the annular fixing position is formed on the inner pipe wall of the filter part and is used for fixing a plurality of layers of filter screens.

According to the utility model, the filter assembly comprises a connecting section and a main body section, wherein the connecting section and the main body section are detachably connected at the annular fixing position.

According to the filter assembly provided by the utility model, the filter part further comprises a transition section, the transition section is arranged between the buffer section and the connecting section, and the diameter of the transition section gradually increases from the buffer section to the connecting section.

According to the filter assembly provided by the utility model, the mesh size of the multi-layer filter screen gradually decreases from the mixing part to the filtering part.

The utility model provides a throttling device which comprises an electronic expansion valve and any filtering component.

According to the throttling device provided by the utility model, the number of the filtering components is two, and the two filtering components are respectively arranged at two sides of the electronic expansion valve.

The utility model provides an air conditioner which comprises any one of the filtering components or any one of the throttling devices.

According to the filter assembly provided by the utility model, the flowing refrigerant can be fully mixed by arranging the mixing part and the filtering part. Specifically, when the high-speed refrigerant flows through the cavity section, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continuously flows to the filtering part, the gaseous refrigerant is completely scattered and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve, has avoided producing the noise and has brought bad experience on the sense of hearing for the user.

In the throttling device and the air conditioner provided by the embodiment of the utility model, the filtering component is applied, so that the throttling device and the air conditioner have the advantages as described above, and the details are not repeated.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a filter assembly according to the present utility model;

Fig. 2 is a schematic structural view of a throttling device provided by the utility model.

Reference numerals:

10: a mixing section; 11: a cavity section; 12: a pipe section; 121: a positioning piece; 13: a buffer section;

20: a filtering part; 21: a filter screen; 22: annular fixing positions; 23: a connection section; 24: a main body section; 25: a transition section;

30: an electronic expansion valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The examples provided by the present utility model will now be described with reference to fig. 1 to 2, it being understood that the following are merely illustrative embodiments of the present utility model and are not to be construed as limiting the present utility model in any way.

The utility model provides a filter assembly, which can fully mix refrigerants in a gas-liquid two-phase flow state, improve the stability of the refrigerant, and make the sound generated by the refrigerants in the state more stable when the refrigerants flow through an electronic expansion valve.

Specifically, fig. 1 is a schematic structural diagram of a filter assembly provided by the present utility model, please refer to fig. 1. The filter assembly includes: a mixing section 10 and a filtering section 20. In the installation, the mixing part 10 is installed upstream of the filtering part 20 so that the refrigerant flows from the mixing part 10 in the direction of the filtering part 20, and the flow direction of the refrigerant can be seen in fig. 1.

Wherein, mixing portion 10 includes cavity section 11 and body section 12 that is linked together with cavity section 11, and the internal diameter of cavity section 11 is greater than the internal diameter of body section 12. Wherein, the pipe section 12 is used for being communicated with the upstream of the filtering component, in use, the refrigerant flowing at high speed and in a turbulence state is converted into static pressure when flowing through the cavity section 11 due to the large cross section area of the cavity section 11, the flow speed is reduced, and the gaseous refrigerant and the liquid refrigerant are fully mixed.

The filtering part 20 is communicated with the cavity section 11 of the mixing part 10, and a plurality of layers of filter screens 21 are stacked in the inner cavity of the filtering part 20. Under the action of the multi-layer filter screen 21, the gaseous refrigerant is completely dispersed and completely mixed with the liquid refrigerant, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces a more stable sound when flowing through the electronic expansion valve 30.

It should be noted that, the greater function of the conventional filter assembly is to filter the residue in the pipeline, so as to prevent the residue from blocking when the residue flows through the electronic expansion valve 30; under the dual functions of the cavity section 11 and the filtering part 20, the filtering component provided by the utility model can uniformly mix the gas-liquid two-phase refrigerants, and the audible sound is obviously improved when the gas-liquid two-phase refrigerants flow through the electronic expansion valve 30 after being uniformly mixed.

The filter assembly provided by the utility model can fully mix flowing refrigerant by arranging the mixing part 10 and the filtering part 20. Specifically, when the high-speed refrigerant flows through the cavity section 11, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continues to flow to the filtering part 20, the gaseous refrigerant is completely dispersed and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen 21, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve 30, avoiding noise generation and poor experience for the user's hearing.

In one embodiment of the present utility model, the pipe section 12 is provided with a positioning member 121 for positioning the mixing section 10. Specifically, the pipe body section 12 is used for being connected with an upstream connecting piece, a matching piece matched with the positioning piece 121 is arranged on the connecting piece, and the connecting length between the pipe body section 12 and the connecting piece can be positioned through the matching of the positioning piece 121 and the matching piece, so that the insertion is avoided.

In particular, the positioning element 121 may be a positioning projection provided on the outer wall of the tube section 12, and the mating element may be a positioning groove into which the positioning projection can be inserted.

In one embodiment of the present utility model, the mixing part 10 further includes a buffer section 13, and the buffer section 13 is connected between the cavity section 11 and the filtering part 20, for buffering the refrigerant flowing out of the cavity section 11, so that the refrigerant can flow into the mixing part 10 at a preset speed.

Further, in one embodiment of the present utility model, an annular fixing portion 22 is formed on the inner wall of the filtering portion 20, and the annular fixing portion 22 is used for fixing the multi-layer filter screen 21. The multi-layer filter screen 21 may be stacked, fixed at the same position, or fixed separately, which is not limited in this embodiment. The number of the filter screens 21 may be set as needed, and this embodiment is not limited thereto, and may be three layers, for example.

In a further embodiment provided by the utility model, the filter house 20 comprises a connecting section 23 and a main body section 24, the connecting section 23 and the main body section 24 being detachably connected at an annular fixing location. Through this kind of structure, be convenient for with filter screen 21 fixed connection section 23 and the inside of main part section 24, through dismantling connection section 23 and main part section 24, also be favorable to overhauling filter screen 21.

Further, in an embodiment of the present utility model, the filtering portion 20 further includes a transition section 25, where the transition section 25 is disposed between the buffer section 13 and the connecting section 23, and the diameter of the transition section 25 gradually increases from the buffer section 13 to the connecting section 23. Through the transition of the transition section 25, the refrigerant can gradually flow from the buffer section 13 with smaller diameter to the connecting section 23, so that noise caused by suddenly increasing the pipeline and suddenly decreasing the flow velocity of the refrigerant is avoided.

In any of the embodiments provided by the present utility model, the mesh size of the multi-layer filter screen 21 is gradually reduced from the mixing portion 10 to the filtering portion 20, so as to gradually filter the refrigerant, and the refrigerant is gradually scattered in the process of passing through the meshes from large to small, so that the mixing effect is ensured, and the blocking of the small meshes to the refrigerant flowing process is avoided, thereby further reducing the flowing noise.

The filter assembly provided by the utility model can fully mix flowing refrigerant by arranging the mixing part 10 and the filtering part 20. Specifically, when the high-speed refrigerant flows through the cavity section 11, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continues to flow to the filtering part 20, the gaseous refrigerant is completely dispersed and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen 21, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve 30, avoiding noise generation and poor experience for the user's hearing.

Further, the mesh size of the multi-layer filter screen 21 is gradually reduced from the mixing part 10 to the filtering part 20 for filtering the refrigerant step by step, and the refrigerant is gradually scattered in the process of passing through the meshes from large to small, so that the mixing effect is ensured, the blocking of the small meshes to the refrigerant flowing process is avoided, and the flowing noise is further reduced.

Fig. 2 is a schematic structural diagram of the throttling device provided by the present utility model, please refer to fig. 2. The restriction device includes an electronic expansion valve 30 and any of the filter assemblies described above. By providing the filter assembly upstream of the electronic expansion valve 30, the flowing refrigerant can be sufficiently mixed to form a uniform gas-liquid two-phase flow state. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve 30, avoiding noise generation and poor experience for the user's hearing.

Further, in one embodiment provided by the present utility model, the number of the filter assemblies is two, and the two filter assemblies are respectively disposed at two sides of the electronic expansion valve 30. The two filter components can respectively play a role in noise reduction when the air conditioner refrigerates and heats.

Specifically, when the air conditioner inner unit is in refrigeration operation, the refrigerant releases heat in the condenser of the outdoor unit, and the outlet of the stop valve of the outer unit is in a supercooling state, but in actual installation, an online pipeline is longer, and the online pipeline is bent and is suffocated, so that the refrigerant has certain pressure loss when flowing in the online pipeline, and the refrigerant is converted into a gas-liquid two-phase flow state at the inlet of the liquid pipe of the indoor unit. When the refrigerant in the gas-liquid two-phase flow state passes through the filtering part 20, on one hand, when the gaseous refrigerant with larger diameter size passes through the three layers of filter screens 21 in the filter, the gaseous refrigerant can be scattered by the filter screens 21 for many times to form the gaseous refrigerant with relatively smaller size and basically consistent size, and when the small-size gaseous refrigerant passes through the valve body of the electronic expansion valve 30, the refrigerant noise generated by collision and rupture of large-size bubbles and the valve body can be effectively reduced; on the other hand, in the process of scattering the large bubbles layer by the filter screen 21, the large bubbles can be uniformly mixed with the liquid refrigerant, the mixed large bubbles are converted into more uniform vapor-liquid two-phase flow state refrigerant, when the large bubbles flow through the valve body of the electronic expansion valve 30 at the moment, the flowing refrigerant is more stable, the generated refrigerant sound state is more stable, and the front-back contrast hearing feeling is more uniform when the laboratory test is found.

When the air conditioner is in heating operation, the refrigerant releases heat in the indoor unit, and is in a full liquid state before the electronic expansion valve 30, and at the moment, the refrigerant in the full liquid state flows through the valve body of the electronic expansion valve 30 after being filtered by the pipe group of the filtering part 20, and the refrigerant in the full liquid state is not mixed with gas, so that no refrigerant sound is basically generated.

The present utility model provides a throttle device, which can fully mix flowing refrigerant by arranging a mixing part 10 and a filtering part 20. Specifically, when the high-speed refrigerant flows through the cavity section 11, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continues to flow to the filtering part 20, the gaseous refrigerant is completely dispersed and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen 21, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve 30, avoiding noise generation and poor experience for the user's hearing.

The present utility model provides an air conditioner that may include any of the filter assemblies described above, or any of the restriction devices described above.

The present utility model provides an air conditioner, which can fully mix flowing refrigerant by arranging a mixing part 10 and a filtering part 20. Specifically, when the high-speed refrigerant flows through the cavity section 11, the dynamic pressure is converted into static pressure, the flow speed is reduced, and when the high-speed refrigerant continues to flow to the filtering part 20, the gaseous refrigerant is completely dispersed and completely mixed with the liquid refrigerant under the action of the multi-layer filter screen 21, so that a uniform gas-liquid two-phase flow state is formed. The refrigerant in this state produces more stable sound when flowing through the electronic expansion valve 30, avoiding noise generation and poor experience for the user's hearing.

In a specific embodiment, the air conditioner may be of various types, such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling air conditioner, or a central air conditioner.

The multi-split central air conditioner is one type of central air conditioner for users, commonly called as one-to-many, and refers to a primary refrigerant air conditioning system in which one outdoor unit is connected with two or more indoor units through pipes, an air cooling heat exchange mode is adopted on the outdoor side, and a direct evaporation heat exchange mode is adopted on the indoor side. The air conditioner can be a multi-split central air conditioner, and the noise generated by the indoor unit can be reduced by applying the filtering component or the throttling device to the multi-split central air conditioner.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A filter assembly, comprising:

A mixing part (10), wherein the mixing part (10) comprises a cavity section (11) and a pipe body section (12) communicated with the cavity section (11), and the inner diameter of the cavity section (11) is larger than the inner diameter of the pipe body section (12);

The filtering part (20), filtering part (20) is linked together with cavity section (11) of mixing part (10), the inner chamber of filtering part (20) is superimposed with multilayer filter screen (21).

2. A filter assembly according to claim 1, wherein the tube section (12) is provided with a positioning member (121) for positioning the mixing section (10).

3. The filter assembly according to claim 1, wherein the mixing section (10) further comprises a buffer section (13), the buffer section (13) being connected between the cavity section (11) and the filter section (20).

4. A filter assembly according to claim 3, wherein an annular fixing location (22) is formed on the inner tube wall of the filter portion (20), the annular fixing location (22) being used for fixing a plurality of layers of the filter screen (21).

5. The filter assembly according to claim 4, wherein the filter portion (20) comprises a connecting section (23) and a main body section (24), the connecting section (23) and the main body section (24) being detachably connected at the annular fixing location.

6. The filter assembly according to claim 5, wherein the filter portion (20) further comprises a transition section (25), the transition section (25) being arranged between the buffer section (13) and the connection section (23), the diameter of the transition section (25) increasing gradually from the buffer section (13) to the connection section (23).

7. A filter assembly according to any one of claims 1 to 6, wherein the mesh size of the plurality of layers of the filter screen (21) decreases gradually from the mixing section (10) towards the filter section (20).

8. A throttling device, characterized by comprising an electronic expansion valve (30) and a filter assembly according to any of claims 1 to 7.

9. The throttle device according to claim 8, characterized in that the number of the filter assemblies is two, and that two filter assemblies are provided on both sides of the electronic expansion valve (30), respectively.

10. An air conditioner comprising the filter assembly of any one of claims 1 to 7, or the throttle device of claim 8 or 9.