Flow divider and air conditioner with same

Abstract

The flow divider comprises a flow inlet section, a first rectification noise reduction part is arranged in the flow inlet section, a plurality of flow passing channels are constructed on the first rectification noise reduction part, and the flow passing channels are distributed on the first rectification noise reduction part at intervals. According to the air conditioner, in the initial starting stage of the air conditioner, even if the flow of gas-liquid two-phase refrigerants flowing through the flow divider changes suddenly, due to the fact that the first rectification noise reduction part is arranged in the flow inlet section of the flow divider, the gas-liquid two-phase refrigerants flowing into the flow divider can quickly flow through the flow passing channels of the first rectification noise reduction part, and the flow of the gas-liquid two-phase refrigerants flowing through the flow divider is changed suddenly. Due to the fact that flowing noise of refrigerants in different flow passing channels can interfere with each other, flow dividing noise can be reduced, and sharp flow dividing noise can be prevented from being generated when the refrigerants with flow abrupt changes flow through the flow divider.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and in particular relates to a diverter and an air conditioner having the same. Background Art

[0002] Conventional vapor compression air conditioning systems mainly include compressors, condensers, electronic expansion valves and evaporators. The evaporator is a key heat exchange device to achieve the cooling and heating performance of air conditioners. The commonly used air conditioner evaporator type is an air-cooled tube-fin heat exchanger. In order to improve the heat exchange effect of the evaporator, a splitter is usually used to divide the gas-liquid two-phase flow after the electronic expansion valve is throttled into multiple processes to enter the heat exchange tube of the evaporator. The splitter performance has an important influence on the heat exchange performance of the evaporator. If the splitter performance is poor, the refrigerant flow rate of some processes in the evaporator will be small, causing the process to be severely overheated; while the refrigerant flow rate of other processes will be too large, resulting in insufficient evaporation of the refrigerant and the inability to ensure the superheat of the outlet. Severe overheating or insufficient evaporation of the refrigerant at the evaporator outlet will cause the heat exchange performance of the air conditioner to decay. In addition, with the increasing demand for rapid cooling and heating functions of air conditioners, the splitter flow rate suddenly changes at the initial start-up of the air conditioner. If the splitter structure is not designed reasonably, there will be sharp splitter noise. In view of the above problems, the present application aims to solve the problem of uneven diversion and diversion noise of the diverter and to design a new diverter structure. Utility Model Content

[0003] Therefore, the utility model provides a flow splitter, which can solve the technical problem that in the initial start-up of the existing air conditioner, the flow splitter will have sharp flow splitting noise due to sudden change of flow.

[0004] In order to solve the above problems, the utility model provides a diverter, including: an inlet section, in which a first rectifying and noise reduction component is arranged, and a plurality of flow channels are constructed on the first rectifying and noise reduction component, and each of the flow channels is distributed at intervals on the first rectifying and noise reduction component.

[0005] In some embodiments, the diameter of the flow passage is D1, 0.5 mm ≤ D1 ≤ 1.5 mm; and / or the thickness of the first rectifying and noise reduction component is H1, 2 mm ≤ H1 ≤ 5 mm.

[0006] In some embodiments, two protrusions are respectively formed on the inner circumferential surface of the inlet section, the two protrusions are spaced apart along the axial direction of the inlet section, and both of the protrusions surround the circumference of the inlet section, and the first flow rectification and noise reduction component is stuck between the two protrusions; and / or, each of the flow passages is evenly distributed on the first flow rectification and noise reduction component.

[0007] In some embodiments, the diverter also includes a transition section, a matching section and a diverter section, the inlet section, the transition section, the matching section and the diverter section are connected in sequence, the inner diameter of the transition section gradually increases in the direction from the inlet section to the matching section, the diverter section has at least two diverter channels, and a second rectifying and noise reduction component is arranged at the matching section, the second rectifying and noise reduction component includes a bottom wall, a plurality of through holes arranged at intervals are constructed on the bottom wall, and each of the through holes is evenly distributed on the bottom wall, the plane where any cross section of the matching section is located is a projection plane, and the vertical projection of the bottom wall on the projection plane covers the vertical projection of each of the diverter channels on the projection plane.

[0008] In some embodiments, the diameter of the through hole is larger than the diameter of the flow passage; and / or the thickness of the bottom wall is smaller than the thickness of the first rectifying and noise reducing component.

[0009] In some embodiments, the diameter of the through hole is D2, 3D1≤D2≤5D1; and / or the thickness of the bottom wall is H2, 2H2≤H1≤5H2.

[0010] In some embodiments, the bottom wall is a flat bottom structure.

[0011] In some embodiments, the cross-section of the bottom wall is circular, and each of the through holes is divided into multiple layers along the radial direction of the bottom wall. The number of the through holes in the radially innermost layer of the bottom wall is one, and the distances between each of the through holes in the same layer in the remaining layers and the through holes in the radially innermost layer are the same.

[0012] In some embodiments, the second fairing and noise reduction component also includes an annular side wall, the bottom wall is located at one end of the annular side wall close to the transition section, a step structure is formed between the fitting section and the diversion section, and one end of the annular side wall away from the bottom wall abuts against an end surface of the step structure.

[0013] The utility model also provides an air conditioner, comprising the above-mentioned diverter.

[0014] The utility model provides a flow divider and an air conditioner having the same, which has the following beneficial effects:

[0015] At the initial start-up of the air conditioner, even if the flow rate of the gas-liquid two-phase refrigerant flowing through the diverter changes suddenly, because the first rectifying and noise reduction component is arranged in the flow inlet section of the diverter, the gas-liquid two-phase refrigerant flowing into the diverter will quickly flow through the various flow channels of the first rectifying and noise reduction component. Since the flow noise of the refrigerant in different flow channels will interfere with each other, the diversion noise can be reduced, thereby preventing the refrigerant with a sudden flow rate from generating sharp diversion noise when flowing through the diverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 A cross-sectional view of a flow divider according to an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of the diverter of the embodiment of the utility model after removing the first rectifying noise reduction component and the second rectifying noise reduction component;

[0019] Figure 3 This is a structural schematic diagram of a first rectifying and noise reducing component of a flow divider according to an embodiment of the utility model;

[0020] Figure 4 This is a structural schematic diagram of a second rectifying and noise reducing component of a shunt according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of a first arrangement of the through holes on the bottom wall of the second rectifying and noise reducing member of the flow splitter according to an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of a second arrangement of the through holes on the bottom wall of the second rectifying and noise reducing member of the flow splitter according to an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of a third arrangement of the through holes on the bottom wall of the second rectifying and noise reducing member of the flow splitter according to an embodiment of the utility model;

[0024] Figure 8 It is a schematic diagram of a fourth arrangement of the through holes on the bottom wall of the second rectifying and noise reducing member of the flow splitter according to an embodiment of the utility model;

[0025] Fig. 9 It is a schematic diagram of a fifth arrangement of the through holes on the bottom wall of the second rectifying and noise reducing member of the flow splitter according to an embodiment of the utility model;

[0026] Fig.10 A schematic diagram showing the comparison between the flow splitter of the present utility model embodiment and the flow splitter of the prior art in terms of flow splitting non-uniformity;

[0027] Fig.11 A schematic diagram showing a comparison between the shunt of the present utility model embodiment and the shunt of the prior art in terms of noise level during shunting;

[0028] Fig.12 The figure is a schematic diagram comparing the noise spectrum of the shunt in the embodiment of the utility model and the shunt in the prior art during shunting.

[0029] The reference numerals are:

[0030] 1. Inlet section; 2. First rectifying and noise reduction component; 3. Flow passage; 4. Protrusion; 5. Transition section; 6. Matching section; 7. Diverter section; 8. Second rectifying and noise reduction component; 9. Through hole; 10. Diverter channel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0035] See also Figures 1 to 12 As shown, according to an embodiment of the utility model, a diverter is provided, including: an inlet section 1, the inner diameter of the inlet section 1 is a constant value, a first rectifying and noise reduction component 2 is arranged in the inlet section 1, a plurality of flow channels 3 are constructed on the first rectifying and noise reduction component 2, and each flow channel 3 is distributed at intervals on the first rectifying and noise reduction component 2.

[0036] In this technical solution, at the initial start-up of the air conditioner, even if the flow rate of the gas-liquid two-phase refrigerant flowing through the diverter suddenly changes, because the first rectifying noise reduction component 2 is set in the inlet section 1 of the diverter, the gas-liquid two-phase refrigerant flowing into the diverter will quickly flow through the various flow channels 3 of the first rectifying noise reduction component 2. Since the flow noise of the refrigerant in different flow channels 3 will interfere with each other, the diversion noise can be reduced, thereby preventing the refrigerant with a sudden flow rate from generating sharp diversion noise when flowing through the diverter. Among them, the inlet section 1 is a straight pipe, that is, the inner diameter of the inlet section 1 is a constant value, and the center line of the inlet section 1 is a straight line. Each flow channel 3 extends along the axial direction of the inlet section 1.

[0037] As a specific implementation, the flow channels 3 are evenly distributed on the first rectifying and noise reducing component 2, which can improve the mixing uniformity of the gas-liquid two-phase refrigerant in the splitter and improve the splitting uniformity.

[0038] Specifically, the thickness of the first rectifying and noise reducing component 2 is H1, 2mm≤H1≤5mm.

[0039] In this embodiment, the thickness of the first rectifying noise reduction member 2 is designed to be greater than or equal to 2 mm and less than or equal to 5 mm in order to increase the flow path of the refrigerant in the flow channel 3, so that when the refrigerant flows through the flow channel 3, the sound waves of the refrigerant flow noise are reflected and refracted more times in the flow channel 3, and the sound waves are continuously attenuated and dispersed, thereby further improving the noise reduction effect. At the same time, increasing the flow path of the refrigerant in the flow channel 3 can further improve the mixing uniformity of the gas-liquid two-phase refrigerant.

[0040] More specifically, the diameter of the flow channel 3 is D1. When 0.5mm≤D1≤1.5mm, the flow channel 3 can better break up large bubbles or agglomerates, allowing the gas-liquid two-phase refrigerant to be fully mixed in the inlet section 1, further improving the diversion uniformity.

[0041] See also Figure 3As shown, two protrusions 4 are formed on the inner circumferential surface of the inlet section 1, the two protrusions 4 are spaced apart along the axial direction of the inlet section 1, and the two protrusions 4 are both arranged around the circumference of the inlet section 1, and the first rectifying and noise reduction component 2 is stuck between the two protrusions 4.

[0042] In this technical solution, when the two protrusions 4 are all around the circumference of the inlet section 1, the first rectifying and noise reduction component 2 is clamped between the two protrusions 4, so that the first rectifying and noise reduction component 2 is fixed more firmly. Among them, the two protrusions 4 are formed by spinning the inlet section 1. When fixing the first rectifying and noise reduction component 2, first spin the protrusion 4 located at the top, and then put the first rectifying and noise reduction component 2 into the inlet section 1, and the first rectifying and noise reduction component 2 abuts the protrusion 4 at the top, and then spin the protrusion 4 located at the bottom, so that the first rectifying and noise reduction component 2 is fixed between the upper and lower protrusions 4. It should be briefly explained that the first rectifying and noise reduction component 2 is a cylindrical structure with a relatively low height, and the diameter of the first rectifying and noise reduction component 2 is slightly smaller than the inner diameter of the inlet section 1.

[0043] See also Figure 1 and Figure 2 As shown, the diverter also includes a transition section 5, a matching section 6 and a diverter section 7. The inlet section 1, the transition section 5, the matching section 6 and the diverter section 7 are connected in sequence. In the direction from the inlet section 1 to the matching section 6, the inner diameter of the transition section 5 gradually increases. The diverter section 7 has at least two diverter channels 10. A second rectifying and noise reduction component 8 is provided at the matching section 6. The second rectifying and noise reduction component 8 includes a bottom wall. A plurality of through holes 9 arranged at intervals are constructed on the bottom wall, and each through hole 9 is evenly distributed on the bottom wall. The plane where any cross section of the matching section 6 is located is a projection plane, and the vertical projection of the bottom wall in the projection plane covers the vertical projection of each diverter channel 10 in the projection plane.

[0044] In this embodiment, the first rectifying and noise reducing component 2 is used to rectify the gas-liquid two-phase refrigerant flowing into the diverter immediately, reduce the flow noise of the refrigerant and make the gas-liquid two-phase refrigerant evenly mixed in the diverter, and the second rectifying and noise reducing component 8 is used to evenly divert the gas-liquid two-phase refrigerant rectified by the first rectifying and noise reducing component 2 into each diverting channel 10, so that the amount of refrigerant flowing into each flow path of the evaporator through each diverting channel 10 is the same, thereby ensuring that the refrigerant is fully evaporated in the evaporator, and then ensuring the superheat of the refrigerant at the outlet of the evaporator. At the same time, when the gas-liquid two-phase refrigerant flows through each through hole 9 of the second rectifying and noise reducing component 8, the sound waves will also be reflected and refracted multiple times in each through hole 9, thereby reducing the diversion noise of the refrigerant again. It should be noted that the flow divider section 7 is used to connect the heat exchange tubes of each flow path of the evaporator. Each flow divider channel 10 includes a first flow path section and a second flow path section connected to each other. The diameter of the first flow path section is smaller than the diameter of the second flow path section. The second flow path section is connected to the inside of the matching section 6 through the first flow path section. A step structure is formed between the first flow path section and the second flow path section. The heat exchange tubes of each flow path of the evaporator are inserted into the second flow path section and abut against the step surface of the step structure. The step surface is used to limit the depth of each heat exchange tube inserted into each flow divider channel 10. The shell of the flow divider is integrally formed. First, a straight cylinder with the same inner diameter as the matching section 6 is formed, and then the formed second rectifying and noise reduction component 8 is placed. Then, the transition section 5 and the inlet section 1 are formed by spinning and shrinking processes, and then the upper protrusion 4 is spun, and the first rectifying and noise reduction component 2 is placed. Finally, the lower protrusion 4 is spun.

[0045] As a specific implementation, the thickness of the bottom wall is smaller than the thickness of the first rectifying and noise reducing component 2 .

[0046] In this embodiment, when the thickness of the bottom wall of the second rectifying and noise reduction component 8 is smaller than the thickness of the first rectifying and noise reduction component 2, it indicates that the flow path of the refrigerant when flowing through the second rectifying and noise reduction component 8 is smaller than the flow path when flowing through the first rectifying and noise reduction component 2. This can reduce the flow resistance of the refrigerant when flowing through the second rectifying and noise reduction component 8, ensure the pressure of the refrigerant flowing into the evaporator, prevent the suction pressure of the compressor from decreasing, and increase the work done.

[0047] When the thickness of the bottom wall is H2, 2H2≤H1≤5H2, the flow resistance of the refrigerant flowing through the second rectifying and noise reduction member 8 is minimal on the basis of ensuring the structural strength. Among them, 0.5mm≤H2≤1mm.

[0048] Specifically, the diameter of the through hole 9 is larger than the diameter of the flow channel 3 .

[0049] In this technical solution, the diameter of the through hole 9 is larger than the diameter of the flow channel 3 so as to ensure the uniformity of the flow distribution and further reduce the flow resistance of the refrigerant when it flows through the second rectifying and noise reducing component 8 .

[0050] When the diameter of the through hole 9 is D2, 3D1≤D2≤5D1, the flow resistance of the refrigerant flowing through the second rectifying and noise reduction component 8 is minimal on the basis of ensuring the uniformity of the flow distribution. Among them, 1mm≤D2≤3mm.

[0051] See also Figure 1 and 4 As shown, the bottom wall is a flat bottom structure, that is, the through holes 9 on the bottom wall are in the same plane, so that the gas-liquid two-phase refrigerant can be mixed immediately after flowing out from the through holes 9, thereby ensuring that the gas-liquid two-phase refrigerant diverted into each diversion channel 10 is mixed evenly.

[0052] See also Figure 5 As shown, the cross-section of the bottom wall is circular, and the through holes 9 are divided into multiple layers along the radial direction of the bottom wall. The number of through holes 9 in the radial innermost layer of the bottom wall is one, and the distances between the through holes 9 in the same layer and the through holes 9 in the radial innermost layer in the remaining layers are the same. That is, except for the through holes 9 in the radial innermost layer of the bottom wall, the arrangement trajectory of the through holes 9 in the remaining layers within the layer can be regarded as a circle. Such an arrangement makes the second rectifying and noise reduction component 8 have better diversion uniformity and noise reduction effects on the gas-liquid two-phase refrigerant. In addition, the arrangement trajectory of the through holes 9 in the remaining layers within the layer is also a regular polygon, such as Figures 6 to 9 As shown, this type of arrangement can also achieve good diversion uniformity and noise reduction effects, but in comparison, the diversion and noise reduction effects of the circular arrangement are better.

[0053] See also Figure 1 As shown, the second rectifying and noise reducing member 8 further includes an annular side wall, the bottom wall is located at one end of the annular side wall close to the transition section 5, a step structure is formed between the matching section 6 and the diverter section 7, the end of the annular side wall away from the bottom wall abuts against the end surface of the step structure, and the bottom wall is supported on the inner surface of the transition section 5. The annular side wall increases the distance between the bottom wall of the second rectifying and noise reducing member 8 and each diverter channel 10, so that the gas-liquid two-phase refrigerant flowing out of each through hole 9 can be mixed in the space enclosed by the annular side wall before flowing into each diverter channel 10, thereby facilitating further uniform mixing of the gas-liquid two-phase refrigerant flowing into each diverter channel 10.

[0054] Fig.10 FIG. 1 is a schematic diagram comparing the flow divider of the present utility model embodiment with the flow divider of the prior art in terms of flow divider non-uniformity. Fig.10 When the refrigerant flow rate at the diverter inlet is 1.5 m / s and 5 m / s, the non-uniformity of the refrigerant diversion of the diverter of the present application is significantly lower than that of the jet ring diverter and the impeller diverter in the prior art.

[0055] Fig.11 FIG. 1 is a schematic diagram showing a comparison of the noise level of the shunt in the embodiment of the utility model and the shunt in the prior art. Fig.11 When the refrigerant flow rate at the diverter inlet is 1.5m / s and 5m / s, the decibel value of the refrigerant diversion noise flowing through the diverter of the present application is significantly lower than the noise decibel value of the jet ring diverter and the impeller diverter in the prior art.

[0056] Fig.12 The figure is a comparison diagram of the noise spectrum of the diverter of the embodiment of the utility model and the diverter of the prior art during diversion, that is, the size of the noise decibel value at different frequencies. Among them, the black line diagram at the top is the noise spectrum diagram of the jet ring diverter, the black line diagram at the bottom is the noise spectrum diagram of the impeller diverter, and the gray line diagram is the noise spectrum diagram of the diverter of the embodiment of the utility model. It can be seen that the noise of the diverter of the embodiment of the utility model is low and evenly distributed in the entire frequency range, indicating that the diverter of the embodiment of the utility model has a good noise reduction effect and a wide range of application; while the overall noise value of the jet ring diverter is relatively large, and the noise in the low frequency band is significantly increased. Compared with the jet ring diverter, the impeller diverter has a noise reduction effect, but its noise value fluctuates in a larger range, resulting in a total noise sound pressure level greater than the diverter of the embodiment of the utility model.

[0057] In summary, the simulation results show that the splitter of the present application reduces the splitting unevenness and low-frequency noise, and the total sound pressure level of the noise is relatively small.

[0058] The utility model also provides an air conditioner, comprising the aforementioned diverter.

[0059] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A flow divider, characterized in that: The invention comprises an inlet section (1), wherein a first rectifying and noise reducing component (2) is arranged in the inlet section (1), a plurality of flow passages (3) are constructed on the first rectifying and noise reducing component (2), the flow passages (3) are distributed at intervals on the first rectifying and noise reducing component (2), and the flow passages (3) are also evenly distributed on the first rectifying and noise reducing component (2).

2. The flow divider according to claim 1, characterized in that: The diameter of the flow passage (3) is D1, 0.5 mm ≤ D1 ≤ 1.5 mm; and / or the thickness of the first rectifying and noise reducing component (2) is H1, 2 mm ≤ H1 ≤ 5 mm.

3. The flow divider according to claim 1 or 2, characterized in that: Two protrusions (4) are respectively formed on the inner circumferential surface of the inlet section (1), the two protrusions (4) are spaced apart along the axial direction of the inlet section (1), and the first rectifying and noise reducing component (2) is clamped between the two protrusions (4).

4. The flow divider according to claim 2, characterized in that: The invention also comprises a transition section (5), a matching section (6) and a diversion section (7); the inlet section (1), the transition section (5), the matching section (6) and the diversion section (7) are connected in sequence; the inner diameter of the transition section (5) gradually increases in the direction from the inlet section (1) to the matching section (6); the diversion section (7) has at least two diversion channels (10); a second rectifying and noise reduction component (8) is arranged at the matching section (6); the second rectifying and noise reduction component (8) comprises a bottom wall; a plurality of through holes (9) arranged at intervals are constructed on the bottom wall; and each of the through holes (9) is evenly distributed on the bottom wall; the plane where any cross section of the matching section (6) is located is a projection plane; the vertical projection of the bottom wall on the projection plane covers the vertical projection of each of the diversion channels (10) on the projection plane.

5. The flow divider according to claim 4, characterized in that: The diameter of the through hole (9) is greater than the diameter of the flow passage (3); and / or the thickness of the bottom wall is less than the thickness of the first rectifying and noise reducing component (2).

6. The flow divider according to claim 5, characterized in that: The diameter of the through hole (9) is D2, 3D1≤D2≤5D1; and / or the thickness of the bottom wall is H2, 2H2≤H1≤5H2.

7. The flow divider according to claim 4, characterized in that: The bottom wall is a flat bottom structure.

8. The flow divider according to claim 4, characterized in that: The cross section of the bottom wall is circular, and the through holes (9) are divided into multiple layers along the radial direction of the bottom wall. The number of the through holes (9) in the radial innermost layer of the bottom wall is one, and the distances between the through holes (9) in the same layer in the remaining layers and the through holes (9) in the radial innermost layer are the same.

9. The flow divider according to claim 4, characterized in that: The second rectifying and noise reducing component (8) also includes an annular side wall, the bottom wall is located at one end of the annular side wall close to the transition section (5), a step structure is formed between the matching section (6) and the diversion section (7), and one end of the annular side wall away from the bottom wall abuts against the end surface of the step structure.

10. An air conditioner, characterized in that: A flow divider comprising the flow divider according to any one of claims 1 to 9.

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