Volute structure and air conditioner

Abstract

The utility model provides a volute structure and an air conditioner, and relates to the technical field of air conditioners. The volute structure comprises a front volute, a rear volute, a front diffusion section and a rear diffusion section. The front volute and the rear volute are oppositely arranged, and a wind wheel mounting cavity is defined by the front volute and the rear volute. An air outlet is formed in one side of the wind wheel installation cavity, and an air inlet is formed in the other side. The front diffusion section is arranged on the side, close to the air outlet, of the front volute and connected with the front volute. The rear diffusion section is arranged on the side, close to the air outlet, of the rear volute and connected with the rear volute. A diffusion angle A is formed between the front diffusion section and the rear diffusion section and is larger than or equal to 23 degrees and smaller than or equal to 28 degrees. According to the volute structure, the diffusion angle A between the front diffusion section and the rear diffusion section is set to be larger than or equal to 23 degrees and smaller than or equal to 28 degrees, in this way, the main flow direction of the air outlet is basically parallel to the front diffusion section, the congestion phenomenon caused by the structure to airflow disappears, the main flow is only affected by viscous resistance, the flow speed and the air volume of the volute structure are both increased, and the air flow speed is increased. Therefore, the air supply capacity of the air conditioner can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, specifically, a volute structure and air conditioner. BACKGROUND

[0002] The volute structure is an important component of the air supply system in the air conditioner, and the main function is to guide the high-speed airflow generated by the fan wheel to the air outlet and convert kinetic energy into static pressure energy in the process. The design of the volute structure has an important influence on the performance, efficiency and noise level of the air conditioning system. The diffuser section is an important structure for the volute to send air outward.

[0003] The existing volute structure diffuser section has an unreasonable diffuser angle, which causes the airflow to be affected by structural resistance, resulting in large wind loss, which is not conducive to the improvement of air conditioner air volume. INVENTION CONTENTS

[0004] The utility model solves the problem that the existing volute structure diffuser section has an unreasonable diffuser angle, which causes the airflow to be affected by structural resistance, resulting in large wind loss, which is not conducive to the improvement of air conditioner air volume.

[0005] To solve the above problems, the utility model provides a volute structure and air conditioner, which can improve the problem of large wind loss of the volute structure.

[0006] In the first aspect, the utility model provides a volute structure, which comprises a front volute, a rear volute, a front diffuser section and a rear diffuser section.

[0007] The front volute and the rear volute are arranged opposite to each other, and the two form a fan wheel mounting cavity.

[0008] One side of the fan wheel mounting cavity forms an air outlet, and the other side is provided with an air inlet.

[0009] The front diffuser section is arranged on one side of the front volute close to the air outlet, and is connected with the front volute.

[0010] The rear diffuser section is arranged on one side of the rear volute close to the air outlet, and is connected with the rear volute.

[0011] The diffuser angle A between the front diffuser section and the rear diffuser section is 23°≤A≤28°.

[0012] The application sets the value range of the diffuser angle A between the front diffuser section and the rear diffuser section to 23°≤A≤28°, so that the main flow direction of the air outlet is basically parallel to the front diffuser section, the congestion phenomenon caused by the structure to the airflow disappears, the main flow is only affected by viscous resistance, the flow rate and air volume of the volute structure are both increased, and the air supply capacity of the air conditioner can be improved.

[0013] In an optional embodiment, the value of A is 27°.

[0014] The application sets the value of the expansion angle to 27°, so that the main flow direction of the air outlet is parallel to the front expansion section, so that the congestion caused by the structure to the airflow disappears, the main flow is only affected by the viscous resistance, so that the flow rate and air volume of the volute structure are increased, thereby improving the air supply capacity of the air conditioner.

[0015] In an optional embodiment, the rear expansion section is connected to one end of the rear volute close to the air outlet, and the connection between the rear expansion section and the rear volute is tangent.

[0016] The application makes the connection between the rear expansion section and the rear volute tangent, and adjusts the inclination angle of the front expansion section to make the expansion angle reach the preset angle, so that smooth outward air supply can be achieved, and turbulent flow can be avoided at the connection between the two, thereby better achieving outward air supply.

[0017] In an optional embodiment, the front expansion section and the front volute close to one end of the air outlet are connected through a circular arc section.

[0018] The application makes the front expansion section and the front volute close to one end of the air outlet connected through a circular arc section, so that smooth outward air supply can be achieved, and turbulent flow can be avoided at the connection between the two, thereby better achieving outward air supply.

[0019] In an optional embodiment, the front expansion section and the front volute are tangent to the circular arc section.

[0020] The application makes the front expansion section and the front volute tangent to the circular arc section, so that smooth outward air supply can be achieved, and turbulent flow can be avoided at the connection between the two, thereby better achieving outward air supply.

[0021] In an optional embodiment, the rear volute includes a connected first circular arc section and a second circular arc section, the rear expansion section is connected to one end of the second circular arc section away from the first circular arc section, and the connection between the rear expansion section and the second circular arc section is tangent.

[0022] The application sets the rear volute as a connection between the first circular arc section and the second circular arc section, thereby stabilizing the airflow and improving the air volume.

[0023] In an optional embodiment, the connection between the first circular arc section and the second circular arc section is tangent.

[0024] The application makes the connection between the first circular arc section and the second circular arc section tangent, so that turbulent flow can be avoided at the connection between the two, thereby better achieving outward air supply.

[0025] In an optional embodiment, the radius of the second circular arc segment is greater than the radius of the first circular arc segment.

[0026] The radius of the second circular arc segment is greater than the radius of the first circular arc segment, which is more conducive to outward air supply and improves the air volume.

[0027] In an optional embodiment, the radius of the first circular arc segment is 86.3 mm, and the radius of the second circular arc segment is 111.2 mm.

[0028] The radius of the first circular arc segment is set to 86.3 mm, and the radius of the second circular arc segment is set to 111.2 mm, which is more conducive to outward air supply and improves the air volume.

[0029] In an optional embodiment, the volute structure further comprises a wind wheel rotatably installed in the wind wheel installation cavity, the first circular arc segment corresponds to a central angle of 50° with the wind wheel axis as the center, and the second circular arc segment corresponds to a central angle of 40° with the wind wheel axis as the center.

[0030] The first circular arc segment corresponds to a central angle of 50°, and the second circular arc segment corresponds to a central angle of 40°, which is more conducive to outward air supply and improves the air volume.

[0031] In a second aspect, the utility model provides a kind of air conditioner, including cabinet machine body and the volute structure of any one of preceding embodiment;

[0032] The cabinet machine body is provided with an installation cavity and a supply air port communicated with the installation cavity:

[0033] The volute structure is arranged in the installation cavity, and the air outlet is communicated with the supply air port.

[0034] The air conditioner provided by the application can make the air outlet mainstream direction of the volute structure and the front diffuser segment substantially parallel, so that the congestion caused by the structure to the airflow disappears, and the mainstream is only affected by viscous resistance, so that the flow rate and air volume of the volute structure are both increased, thereby improving the air supply capacity of the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is the fluid simulation analysis diagram of the existing volute structure;

[0036] Figure 2 is the horizontal cross-sectional structure schematic view of the air conditioner provided by the embodiment;

[0037] Figure 3A fluid simulation diagram of the volute structure of the air conditioner provided in the embodiment is shown in the case of a diffuser angle of 27°;

[0038] Figure 4 A relationship diagram between the diffuser angle and the air volume growth rate obtained by test simulation of the volute structure of the air conditioner provided in the embodiment in the case of different diffuser angles is shown in the figure;

[0039] Figure 5 A fluid simulation diagram of the volute structure of the air conditioner provided in the embodiment is shown in the case of a diffuser angle of 29°.

[0040] Icon: 100-volute structure; 110-front volute; 120-rear volute; 121-first circular arc segment; 122-second circular arc segment; 130-front diffuser segment; 140-rear diffuser segment; 150-fan wheel mounting cavity; 151-air outlet; 152-air inlet; 160-circular arc segment; 170-fan wheel; 300-air conditioner; 310-cabinet body; 311-mounting cavity; 312-air supply outlet; 313-inlet; 320-heat exchanger. DETAILED DESCRIPTION

[0041] Please refer to Figure 1 , the existing volute structure diffuser segment diffuser angle setting is unreasonable, which will cause the airflow to be affected by the structural resistance, and the air volume loss is large, which is not conducive to the improvement of the air volume of the air conditioner.

[0042] In order to make the above-mentioned purpose, characteristics and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0043] Please refer to Figure 2 , the embodiment provides a kind of air conditioner 300, and the air conditioner 300 includes cabinet body 310 and volute structure 100.Cabinet body 310 is provided with mounting cavity 311 and air supply outlet 312 communicated with mounting cavity 311.Volute structure 100 is arranged in mounting cavity 311, and air can be guided to air supply outlet 312.

[0044] In the embodiment, cabinet body 310 is also provided with inlet 313, and inlet 313 is generally arranged at the rear of cabinet body 310, and air supply outlet 312 is arranged at the front of cabinet body 310.Inlet 313 is also provided with heat exchanger 320 in the vicinity of mounting cavity 311.External air can flow into mounting cavity 311 through inlet 313, and after heat exchange with heat exchanger 320, it is sent to air supply outlet 312 by volute structure 100, and finally sent to indoor space through air supply outlet 312, to realize cooling, heating and other purposes for indoor space.

[0045] Please refer to Figures 2 to 5In the embodiment, the volute structure 100 comprises a front volute 110, a rear volute 120, a front diffuser 130, a rear diffuser 140 and a wind wheel 170. The front volute 110 is arranged opposite to the rear volute 120 and is installed in the installation cavity 311. The front volute 110 and the rear volute 120 enclose the wind wheel installation cavity 150, and the wind wheel 170 is installed in the wind wheel installation cavity 150. One side of the wind wheel installation cavity 150 forms the air outlet 151, and the other side is provided with the air inlet 152. The direction of the air inlet 152 corresponds to the direction of the inlet 313, and the direction of the air outlet 151 corresponds to the direction of the air outlet 312. The front diffuser 130 is arranged on the side of the front volute 110 close to the air outlet 151, and one end of the front diffuser 130 is connected to the front volute 110, and the other end of the front diffuser 130 extends to the left side of the air outlet 312 and overlaps the cabinet body 310 corresponding to the left side of the air outlet 312. The rear diffuser 140 is arranged on the side of the rear volute 120 close to the air outlet 151, and one end of the rear diffuser 140 is connected to the rear volute 120, and the other end of the rear diffuser 140 extends to the direction of the air outlet 312 and overlaps the cabinet body 310 corresponding to the right side of the air outlet 312. The front diffuser 130 and the rear diffuser 140 form a diffuser angle A, and 23°≤A≤28°. The rotation of the wind wheel 170 can make the air outside the cabinet body 310 flow into the installation cavity 311 through the inlet 313, and then flow through the heat exchanger 320 and enter the volute structure 100 through the air inlet 152. Then, under the action of the wind wheel 170, the air is guided to the air outlet 312 through the front diffuser 130 and the rear diffuser 140, and then flows to the indoor space through the air outlet 312.

[0046] In the embodiment, the value of the diffuser angle A between the front diffuser 130 and the rear diffuser 140 is set to 23°≤A≤28°. In this way, the main flow direction of the air outlet 151 is substantially parallel to the front diffuser 130, so that the congestion of the structure to the airflow disappears, and the main flow is only affected by the viscous resistance, so that the flow rate and the air volume of the volute structure 100 are both increased, thereby improving the air supply capacity of the air conditioner 300.

[0047] In the embodiment, the value of the diffuser angle A is 27°.

[0048] In the embodiment, the value of the diffuser angle A is set to 27°. In this way, the main flow direction of the air outlet 151 is parallel to the front diffuser 130, so that the congestion of the structure to the airflow disappears, and the main flow is only affected by the viscous resistance, so that the flow rate and the air volume of the volute structure 100 are both increased, thereby improving the air supply capacity of the air conditioner 300.

[0049] Of course, in some other embodiments of the present application, the diffuser angle A can also be any integer value among 23°, 24°, 25°, 26°, 28°. Of course, the diffuser angle A can also not be an integer, for example, 25.5°, 27.5°, etc. The value of the diffuser angle A can be selected according to the volute structure, the wind wheel selection, etc. within 23°≤A≤28°.

[0050] Please refer to Figures 2 to 5 It should be noted that, based on the air volume when the diffuser angle A is 21°, the air volume growth rate corresponding to the diffuser angle A of 23° is 0.5%, the air volume growth rate corresponding to the diffuser angle A of 25° is 0.9%, and the air volume growth rate corresponding to the diffuser angle A of 27° is 1.1%. When the diffuser angle A is greater than 29°, although the air volume increases slightly, the outflow direction of the main flow deviates from the normal outflow direction due to the guidance of the front diffuser section 130 to the main flow direction, so that the air supply direction of the main flow does not correspond to the normal direction of the air supply port 312, which affects the air flow direction. Therefore, when the diffuser angle A is 27°, the air volume can be ensured to have a larger growth, and the normal outward air supply can also be ensured.

[0051] Please refer to Figure 2 Further, the rear diffuser section 140 is connected to one end of the rear volute 120 close to the air outlet 151, and the connection between the rear diffuser section 140 and the rear volute 120 is tangent. The position of the front diffuser section 130 is adjusted based on the rear diffuser section 140 to achieve the required diffuser angle.

[0052] In this embodiment, the connection between the rear diffuser section 140 and the rear volute 120 is tangent, and the position of the front diffuser section 130 is adjusted based on the rear diffuser section 140 to achieve the required diffuser angle. In this way, smooth outward air supply can be achieved, and turbulence can be avoided at the connection between the two, thereby better achieving outward air supply.

[0053] In this embodiment, the front diffuser section 130 and the front volute 110 close to the air outlet 151 are connected through the arc section 160.

[0054] In this embodiment, the front diffuser section 130 and the front volute 110 close to the air outlet 151 are connected through the arc section 160 to form a front volute tongue structure. In this way, smooth outward air supply can be achieved, and turbulence can be avoided at the connection between the two, thereby better achieving outward air supply.

[0055] Please refer to Figure 2 In this embodiment, the front diffuser section 130 and the front volute 110 are tangent to the arc section 160.

[0056] The embodiment makes the front diffuser section 130 and the front volute 110 tangent to the circular arc section 160, so that the outward air supply can be smooth, and the turbulent flow can be avoided at the connection of the two, so that the outward air supply can be better realized.

[0057] In the embodiment, the rear volute 120 includes a first circular arc section 121 and a second circular arc section 122 connected, and the rear diffuser section 140 is connected to an end of the second circular arc section 122 away from the first circular arc section 121, and the connection of the rear diffuser section 140 and the second circular arc section 122 is tangent.

[0058] The embodiment sets the rear volute 120 as connecting the first circular arc section 121 and the second circular arc section 122, so that the air flow can be stabilized and the air volume can be improved.

[0059] Please refer to Figure 2 In the embodiment, the connection of the first circular arc section 121 and the second circular arc section 122 is tangent.

[0060] The embodiment makes the connection of the first circular arc section 121 and the second circular arc section 122 tangent, so that the turbulent flow can be avoided at the connection of the two, so that the outward air supply can be better realized.

[0061] Further, the radius of the second circular arc section 122 is greater than the radius of the first circular arc section 121.

[0062] The embodiment sets the radius of the second circular arc section 122 to be greater than the radius of the first circular arc section 121, so that the outward air supply can be more conducive to improving the air volume.

[0063] Please refer to Figure 2 In the embodiment, the radius of the first circular arc section 121 is 86.3mm, and the radius of the second circular arc section 122 is 111.2mm.

[0064] The embodiment sets the radius of the first circular arc section 121 to be 86.3mm, and sets the radius of the second circular arc section 122 to be 111.2mm, so that the air volume growth rate compared with the original size of the volute structure is 2%, which is more conducive to the outward air supply and improving the air volume.

[0065] Further, the first circular arc section 121 corresponds to a central angle of 50° with the wind wheel 170 shaft center as the center, and the second circular arc section 122 corresponds to a central angle of 40° with the wind wheel 170 shaft center as the center.

[0066] Please refer to Figure 2 The embodiment sets the central angle of the first circular arc section 121 to be 50°, and sets the central angle of the second circular arc section 122 to be 40°, so that the outward air supply can be more conducive to improving the air volume.

[0067] It should be noted that the first arc segment 121 corresponds to a central angle of 50 degrees with the axis of the wind wheel 170 as the center, which can be understood as making auxiliary connecting lines from the center to the two ends of the first arc segment 121, and the included angle between the two auxiliary connecting lines is 50 degrees, and it can also be understood that the first arc segment 121 corresponds to a central angle of 50 degrees. The second arc segment 122 corresponds to a central angle of 40 degrees with the axis as the center, which can be understood as making auxiliary connecting lines from the center to the two ends of the second arc segment 122, and the included angle between the two auxiliary connecting lines is 40 degrees, and it can also be understood that the second arc segment 122 corresponds to a central angle of 40 degrees.

[0068] In summary, by setting the range of the diffuser angle A between the front diffuser section 130 and the rear diffuser section 140 to 23°≤A≤28°, the main flow direction of the air outlet 151 is basically parallel to the front diffuser section 130, so that the congestion caused by the structure to the airflow disappears, and the main flow is only affected by the viscous resistance, so that the flow rate and air volume of the volute structure 100 are both increased, thereby improving the air supply capacity of the air conditioner 300.

[0069] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be the range defined by the claims.

Claims

1. A volute structure, characterized by, The front volute (110) and the rear volute (120) are oppositely arranged, and the two volutes form a wind wheel installation cavity (150); The wind wheel installation cavity (150) forms an air outlet (151) on one side and an air inlet (152) on the other side; the front diffuser (130) is arranged on the side of the front volute (110) close to the air outlet (151) and is connected with the front volute (110); The rear diffuser (140) is arranged on the side of the rear volute (120) close to the air outlet (151) and is connected with the rear volute (120); The front diffuser (130) and the rear diffuser (140) form a diffuser angle A, and 23°≤A≤28°. The value of A is 27°.

2. The volute structure according to claim 1, characterized by The rear diffuser (140) is connected with the end of the rear volute (120) close to the air outlet (151), and the connection between the rear diffuser (140) and the rear volute (120) is tangent. The position of the front diffuser (130) is adjusted based on the rear diffuser (140) to achieve the required diffuser angle.

3. The volute structure according to claim 1, characterized by The front diffuser (130) and the front volute (110) are tangent to the circular arc segment (160).

4. The volute structure according to any one of claims 1 to 3, characterized in that, The front diffuser (130) and the front volute (110) are tangent to the circular arc segment (160).

5. The volute structure according to claim 4, characterized by The rear volute (120) includes a first circular arc segment (121) and a second circular arc segment (122), and the rear diffuser (140) is connected with the end of the second circular arc segment (122) away from the first circular arc segment (121), and the connection between the rear diffuser (140) and the second circular arc segment (122) is tangent.

6. The volute structure according to claim 3, wherein The connection between the first circular arc segment (121) and the second circular arc segment (122) is tangent.

7. The volute structure according to claim 6, characterized by The radius of the second circular arc segment (122) is greater than the radius of the first circular arc segment (121).

8. The volute structure of claim 7, wherein The value of the radius of the first circular arc segment (121) is 86.3mm, and the value of the radius of the second circular arc segment (122) is 111.2mm; 9. The volute structure of claim 8, wherein And / or, The volute structure further includes a wind wheel (170) rotatably installed in the wind wheel installation cavity (150), the first circular arc segment (121) corresponds to a central angle of 50° with the axis of the wind wheel (170) as the center, and the second circular arc segment (122) corresponds to a central angle of 40° with the axis of the wind wheel (170) as the center. The cabinet body (310) is provided with a mounting cavity (311) and an air supply opening (312) communicating with the mounting cavity (311):

10. An air conditioner characterized by comprising: The volute structure is arranged in the mounting cavity (311), and the air outlet (151) and the air supply opening (312) correspondingly communicate. ​ ​

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