Volute assembly and integral air conditioner with same

Abstract

The utility model provides a volute assembly and an integral air conditioner with the volute assembly. The volute assembly comprises a volute body and a flow guide ring. The volute body is provided with an air inlet, and a mounting part is arranged at the air inlet; the flow guide ring comprises a connecting part, the periphery of the connecting part is connected with the periphery of the mounting part, the connecting part protrudes out of the mounting part in the direction opposite to the air inlet direction, and the periphery, deviating from the mounting part, of the connecting part is connected with the evaporator. The connecting part is tightly attached to the evaporator, airflow leakage loss is reduced, turbulent flow generated by intersection of leaked airflow and main airflow is further reduced, and rotation noise is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air conditioners, and in particular relates to a volute component and an integral air conditioner with the volute component. Background Art

[0002] In the case of a portable air conditioner, the space inside is confined, so the evaporator and condenser are relatively small, and the corresponding volutes are also small. The volute houses an impeller, but this impeller rotates at high speeds and is a centrifugal impeller. Centrifugal impellers generate much louder rotational noise than cross-flow impellers. As the air, after heat exchange in the evaporator, flows into the volute, the turbulence generated by the intersection of leaked air and the mainstream airflow increases the rotational noise. Utility Model Content

[0003] The utility model provides a volute component and an integrated air conditioner with the volute component, which can solve the technical problem that when the air after heat exchange in the evaporator flows into the volute, the turbulence generated by the intersection of the leakage airflow and the mainstream airflow will increase the rotation noise.

[0004] The utility model provides a volute assembly, which includes a volute body and a guide ring;

[0005] The volute body has an air inlet, and a mounting portion is provided at the air inlet;

[0006] The guide ring includes a connecting portion, the periphery of which is connected to the periphery of the mounting portion, and in the reverse direction of the air inlet direction, the connecting portion protrudes from the mounting portion, and the connecting portion is away from the periphery of the mounting portion and connected to the evaporator.

[0007] In some embodiments, the guide ring further includes a guide portion, a periphery of the guide portion is connected to a periphery of the mounting portion facing away from the connecting portion, and in the air inlet direction, the guide portion is a constricted structure.

[0008] In some embodiments, the guide portion includes a first edge and a second edge, and both ends of the second edge are respectively connected to the first edge. In the axial direction of the guide ring, the length of the first edge is equal, and the length of the second edge gradually decreases from the end to the bottom.

[0009] In some embodiments, taking the longitudinal section of the guide portion as the projection surface, the first edge is located above the second edge, the length of the first edge is a first length, the length of the bottom end of the second edge is a second length, and the difference between the second length and the first length is 1 mm.

[0010] In some embodiments, taking the end face of the guide ring as the projection surface, the thickness of the first edge is H1, the thickness of the second edge (232) is H2, and the thickness H1 and the thickness H2 satisfy: H1<H2.

[0011] In some embodiments, an impeller is provided in the volute body, and a distance L is between a peripheral edge of the guide portion away from the mounting portion and an end face of the impeller, and the distance L satisfies: 3mm≤L<5mm.

[0012] In some embodiments, in the axial direction of the guide ring, the height of the connecting portion is 1.5 mm.

[0013] In some embodiments, a mounting plate is provided on the top of the volute body. The mounting plate extends in a direction opposite to the air inlet direction, and the mounting plate is used to be connected to the top of the evaporator.

[0014] In some embodiments, a textured layer is provided on a periphery of the connecting portion facing away from the mounting portion.

[0015] An integrated air conditioner comprises a volute assembly, wherein the volute assembly is the above-mentioned volute assembly.

[0016] The utility model provides a volute assembly and an integrated air conditioner having the volute assembly, which has the following beneficial effects:

[0017] The utility model can reduce the loss of air leakage by making the connection part fit tightly with the evaporator, thereby further reducing the turbulence generated by the intersection of the leaked airflow and the mainstream airflow, thereby reducing the rotation noise. At the same time, the connection part can also prevent the condensed water on the volute plane from being sucked into the air duct of the volute body by the impeller. The connection part also protrudes from the air inlet. This arrangement helps to guide the air after heat exchange to enter the volute body smoothly, helps to establish a uniform airflow velocity field and pressure field before entering the inlet of the core wind blade, reduces the turbulence of the airflow when entering the fan, and improves the stability of the airflow and the efficiency of the fan. In addition, the connection part is annular, which is conducive to improving the strength and stability of the volute assembly, helps to support the entire volute assembly, and ensures its stability during operation. Moreover, the setting of the connection part increases the covering area of ​​the air inlet, which helps to cut off the path of repeated inflow and outflow of the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0019] Figure 1 A schematic diagram of a volute assembly according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the installation portion of an embodiment of the present utility model;

[0021] Figure 3 A schematic diagram of a volute body according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of an embodiment of the utility model in which the guide portion is installed in the volute body;

[0023] Figure 5 A schematic diagram of a first edge and a second edge of an embodiment of the present utility model;

[0024] Figure 6 A side view of a first edge and a second edge of an embodiment of the present utility model;

[0025] Figure 7 A cross-sectional view of a first edge and a second edge of an embodiment of the present utility model;

[0026] Figure 8 for Figure 7 Detail enlargement of .

[0027] Figures: 1-volute body; 101-air inlet; 102-mounting plate; 103-air outlet; 2-guide ring; 21-mounting part; 22-connecting part; 23-guide part; 231-first edge; 232-second edge. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0031] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0032] See also Figures 1 to 3 As shown, according to an embodiment of the present invention, a volute assembly is provided, which includes a volute body 1 and a guide ring 2; the volute body 1 has an air inlet 101, and a mounting portion 21 is provided at the air inlet; the guide ring 2 includes a connecting portion 22, the periphery of the connecting portion 22 is connected to the periphery of the mounting portion 21, and in the reverse direction of the air inlet direction, the connecting portion 22 protrudes from the mounting portion 21, and the connecting portion 22 is away from the periphery of the mounting portion 21 and is connected to the evaporator.

[0033] Specifically, the mounting portion 21 and the connecting portion 22 are both annular, the outer peripheral wall of the mounting portion 21 is connected to the mouth wall of the air inlet 101, a peripheral edge of the connecting portion 22 is connected to the mounting plate 102, and the other peripheral edge of the connecting portion 22 is tightly fitted with the evaporator. In the reverse direction of the air inlet direction, the connecting portion 22 protrudes from the mounting portion 21, that is, the connecting portion 22 is located outside the guide ring 2, and the connecting portion 22 is located between the mounting portion 21 and the evaporator. After the air exchanges heat from the evaporator, it first flows into the connecting portion 22, then flows through the mounting portion 21, and then under the action of the centrifugal blades, the air is sucked into the air duct of the volute body 1, and the air is pushed to the air outlet 103 by the centrifugal impeller in the air duct.

[0034] In this embodiment, the connection portion 22 is tightly fitted with the evaporator, thereby reducing the airflow leakage loss, thereby further reducing the turbulence generated by the intersection of the leaked airflow and the mainstream airflow, thereby reducing the rotational noise. At the same time, the connection portion 22 can also prevent the condensed water on the volute plane from being sucked into the air duct of the volute body 1 by the impeller. The connection portion 22 also protrudes from the air inlet 101. This arrangement helps to guide the air after heat exchange to enter the volute body 1 smoothly, helps to establish a uniform airflow velocity field and pressure field before entering the impeller inlet, reduces the turbulence of the airflow when entering the fan, and improves the stability of the airflow and the efficiency of the fan. In addition, the connection portion 22 is annular, which is conducive to improving the strength and stability of the volute assembly, helps to support the entire volute assembly, and ensures its stability during operation. Moreover, the setting of the connection portion 22 increases the coverage area of ​​the air inlet 101, which helps to cut off the path of repeated inflow and outflow of the airflow.

[0035] As a specific embodiment, the volute body 1 has an air duct. After heat exchange in the evaporator, the air flows through the guide ring 2 and is then discharged from the air outlet 103 of the volute body 1 under the action of the impeller. The bottom of the volute body 1 is provided with a slot for interlocking with the chassis of the entire machine to increase the stability of the volute assembly.

[0036] See also Figures 1 to 4 As shown, the guide ring 2 further includes a guide portion 23 , the periphery of the guide portion 23 is connected to the periphery of the mounting portion 21 away from the connecting portion 22 , and the inner diameter of the guide portion 23 is a constricted structure along the air inlet direction.

[0037] In this embodiment, the periphery of the guide portion 23 is connected to the periphery of the mounting portion 21 away from the connecting portion 22, that is, relative to the mounting portion 21, the connecting portion 22 and the guide portion 23 are respectively arranged on both sides of the mounting portion 21, the connecting portion 22 is located outside the volute body 1, and the guide portion 23 is located inside the volute body 1. The periphery of the guide portion 23 is connected to the periphery of the mounting portion 21 away from the connecting portion 22. This arrangement helps to guide air to flow along a specific path. In this way, the guide portion 23 can effectively manage the airflow and ensure that the air flows in a predetermined direction before entering the volute body 1, thereby improving the efficiency of the entire system. The inner diameter of the guide portion 23 is a tapered structure along the air inlet direction. This arrangement can change the speed of the fluid flow. In the air inlet direction, the tapered structure can accelerate the airflow, help to increase the kinetic energy of the airflow, and thus may improve the aerodynamic efficiency of the entire system.

[0038] It is worth noting that in this embodiment, the guide ring 2 includes a connecting portion 22 and a guide portion 23. These two components are integrally formed with the mounting portion 21. In other embodiments, they may also be connected in separate parts. Although the mounting portion 21 is provided at the air inlet in this example, in other embodiments, the mounting portion 21 may also be part of the guide ring 2.

[0039] See also Figure 5 and Figure 6 As shown, the guide portion 23 includes a first edge 231 and a second edge 232 connected to each other. In the axial direction of the guide ring 2, the length of the first edge 231 is the same, and the length of the second edge 232 gradually decreases from the end to the bottom.

[0040] In this embodiment, the first edge 231 and the second edge 232 are both semicircular. Since the impeller rotates on the motor, it will move slightly left and right, resulting in an uneven gap between the volute body 1 and the impeller. Reducing the height of the lower half of the edge can make the gap uniform, thereby reducing the turbulence intensity of the airflow and thus reducing the rotational noise. The length of the second edge 232 gradually decreases from the end to the bottom, while the length of the first edge 231 remains unchanged. The guide portion 23 is a variable diameter structure as a whole, which can reduce noise. The specific length and shape of the first edge 231 and the second edge 232 help optimize the distribution of airflow within the guide portion 23. The equal length of the first edge 231 can ensure that the airflow is evenly distributed in the upper part of the guide portion 23, while the gradual reduction in the length of the second edge 232 can reduce the impact of the airflow on the bottom end of the guide portion 23 during the flow process.

[0041] See also Figures 1 to 6 、 Figure 8 As shown, the first edge 231 is located above the second edge 232 , the length of the first edge 231 is the first length L1 , the length of the second edge 232 is the second length L2 , and the length difference between the second length L2 and the first length L1 is 1 mm.

[0042] In this embodiment, the slight difference in length between the first edge 231 and the second edge 232 allows precise control of the flow characteristics of the airflow within the guide portion 23. This arrangement facilitates fine-tuning of the airflow without significantly altering the overall structure, thereby achieving optimal airflow distribution and efficiency. This length difference reduces turbulence within the guide portion 23, thereby reducing noise. Turbulence is one of the main causes of noise and efficiency loss. Precisely controlling the edge length reduces airflow turbulence and improves airflow stability.

[0043] It is worth noting that in this embodiment, the first edge 231 is preferably arranged above the second edge 232. In other embodiments, by adjusting the structure of the guide portion 23, the first edge 231 can also be arranged on the left side of the second edge 232 while also being able to reduce the turbulence of the airflow in the guide portion 23.

[0044] See also Figures 5 to 8 As shown, with the end surface of the guide ring 2 as the projection surface, the thickness of the first edge 231 is H1, the thickness of the second edge 232 is H2, and the thickness H1 and the thickness H2 satisfy: H1<H2.

[0045] In this embodiment, the length of the second edge 232 gradually decreases from the end to the bottom, which essentially shortens the length of the second edge 232. Since the guide portion 23 is a tapered structure along the air inlet direction, after the length of the second edge 232 is reduced, the thickness of the second edge 232 becomes larger than the first edge 231. The different lengths and thicknesses of the first edge 231 and the second edge 232 help to guide the airflow more effectively, allowing it to flow more smoothly into the air duct of the volute body 1, thereby improving the aerodynamic efficiency of the entire system.

[0046] See also Figures 1 to 3 As shown, an impeller is provided in the volute body 1 , and a distance L is between the periphery of the guide portion 23 away from the mounting portion 21 and the end face of the impeller, and the distance L satisfies: 3mm≤L<5mm.

[0047] In this embodiment, the specific guide ring 2 also includes a guide portion 23, and the periphery of the guide portion 23 is connected to the periphery of the mounting portion 21 away from the connecting portion 22, that is, relative to the mounting portion 21, the connecting portion 22 and the guide portion 23 are respectively arranged on both sides of the mounting portion 21, the connecting portion 22 is located outside the volute body 1, and the guide portion 23 is located inside the volute body 1. The guide ring 2 in this embodiment is away from the periphery of the mounting portion 21, specifically the guide portion 23 is away from the periphery of the mounting portion 21, that is, the distance between the periphery of the guide portion 23 away from the mounting portion 21 and the end face of the impeller is L. The blade tip of the centrifugal impeller will also periodically beat the air and generate noise. When the impeller is in the center of the volute, the distance between the impeller and the volute cannot be too large. If the distance is too large, the noise will increase and the turbulence will be stronger; the distance cannot be too small. If the distance is too small, the air outlet capacity and air volume of the volute assembly will not meet the standards. The distance between the guide ring 2 and the impeller is moderate. The distance L is preferably 3mm, and the diameter of the guide ring 2 is smaller than the inner diameter of the impeller. For split-type air conditioners, the distance L needs to be greater than 5mm, but mobile air conditioners are non-standard. The distance is first selected through simulation. Limiting the distance L to 3mm can reduce the airflow velocity at the impeller tip and quickly turn the airflow from axial flow to radial flow. At the same time, the airflow will not have a large impact on the impeller, and the rotation noise is low.

[0048] See also Figures 1 to 3 As shown, in the axial direction of the guide ring 2 , the height of the connecting portion 22 is 1.5 mm.

[0049] In this embodiment, the connecting portion 22 has a certain height, closely fitting the evaporator. This prevents condensation from being drawn into the air duct, while also reducing airflow leakage losses. This reduces the collision between the leaked airflow and the mainstream airflow, lowers turbulence intensity, and reduces rotational noise. In this embodiment, the height of the connecting portion 22 is 1.5 mm. If the height is too high, excessive rotational noise will result. If the height is too low, condensation will not be prevented from entering the air duct of the volute body 1.

[0050] See also Figures 1 to 4 As shown, a mounting plate 102 is provided on the top of the volute body 1 . The mounting plate 102 extends in the opposite direction of the air inlet direction. The mounting plate 102 is used to connect with the top of the evaporator.

[0051] Specifically, when installing the evaporator, a side plate is provided at the top of the evaporator, and the side plate is in contact with the mounting plate 102. Screw holes are provided on both the mounting plate 102 and the side plate. After the screw holes on the mounting plate 102 and the side plate are aligned, the two are fastened together with screws. During the installation of the evaporator, the connecting portion 22 is in contact with the end face of the evaporator.

[0052] In this embodiment, the mounting plate 102 can provide stable support for the evaporator, ensure a firm connection between the evaporator and the volute body 1, and reduce vibration and noise during operation. The setting of the mounting plate 102 makes the installation and disassembly of the evaporator more convenient.

[0053] See also Figures 1 to 3 As shown, a reticulated layer is provided on the periphery of the connecting portion 22 facing away from the mounting portion 21 .

[0054] In this embodiment, a textured layer can also be provided at the air inlet 101 of the volute body 1. Since the air is at a lower temperature just after entering the evaporator, a very small amount of condensed water may be generated and drawn into the volute air duct, causing abnormal noise. The textured layer uses a relatively rough texture with a large depth and draft angle. If small water droplets form at the lower end of the textured layer, they will be firmly fixed due to the roughness of the textured layer and cannot be drawn into the air duct of the volute body 1 along the textured layer.

[0055] An integrated air conditioner comprises a volute assembly, wherein the volute assembly is an upper volute assembly.

[0056] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0057] 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 within the scope of protection of the present invention. The above are only preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and variations can be made without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A volute assembly, characterized in that: include: A volute body (1) and a guide ring (2); The volute body (1) has an air inlet (101), and a mounting portion (21) is provided at the air inlet; The guide ring (2) comprises a connecting portion (22), the periphery of the connecting portion (22) is connected to the periphery of the mounting portion (21), and in the reverse direction of the air inlet direction, the connecting portion (22) protrudes from the mounting portion (21), and the connecting portion (22) is away from the periphery of the mounting portion (21) and is connected to the evaporator.

2. The volute assembly according to claim 1, characterized in that The guide ring (2) further comprises a guide portion (23), the periphery of the guide portion (23) being connected to the periphery of the mounting portion (21) facing away from the connecting portion (22), and in the air inlet direction, the guide portion (23) is a constricted structure.

3. The volute assembly according to claim 2, characterized in that The guide portion (23) comprises a first edge (231) and a second edge (232), wherein both ends of the second edge (232) are respectively connected to the first edge (231); in the axial direction of the guide ring (2), the length of the first edge (231) is the same, and the length of the second edge (232) gradually decreases from the end to the bottom.

4. The volute assembly according to claim 3, characterized in that Taking the longitudinal section of the guide portion (23) as a projection surface, the first edge (231) is located above the second edge (232), the length of the first edge (231) is a first length, the length of the bottom end of the second edge (232) is a second length, and the length difference between the second length and the first length is 1 mm.

5. The volute assembly according to claim 4, characterized in that Taking the end face of the guide ring (2) as a projection surface, the thickness of the first edge (231) is H1, the thickness of the second edge (232) is H2, and the thickness H1 and the thickness H2 satisfy: H1<H2.

6. The volute assembly according to claim 2, characterized in that An impeller is provided in the volute body (1), and a distance L is provided between the periphery of the guide portion (23) away from the mounting portion (21) and the end face of the impeller, and the distance L satisfies: 3mm≤L<5mm.

7. The volute assembly according to claim 1, wherein: In the axial direction of the guide ring (2), the height of the connecting portion (22) is 1.5 mm.

8. The volute assembly according to claim 1, wherein: A mounting plate (102) is provided on the top of the volute body (1), the mounting plate (102) extending in the opposite direction of the air inlet direction, and the mounting plate (102) is used to be connected to the top of the evaporator.

9. The volute assembly according to any one of claims 1 to 8, characterized in that: A reticulated layer is provided on the periphery of the connecting portion (22) away from the mounting portion (21).

10. An integrated air conditioner, comprising a volute assembly, characterized in that: The volute assembly is the volute assembly according to any one of claims 1 to 9.

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