Air conditioning apparatus

Abstract

The application provides an air conditioning equipment, comprising: a shell with an air inlet and an air outlet, and a flow channel communicating the air inlet and the air outlet; a heat exchanger arranged in the flow channel; a fan arranged in the shell and located between the heat exchanger and the air inlet, the fan having a volute formed by a volute top plate and a volute bottom plate and an impeller arranged in the volute; the flow channel comprises a supply air section opening towards the heat exchanger and formed by the volute top plate; the first guide plate and the second guide plate are arranged in the form of protruding from the surface of the volute top plate towards the supply air section and have first ends and second ends in the supply air direction respectively, and the linear distance between the first end of the first guide plate and the first end of the second guide plate is greater than the linear distance between the second end of the first guide plate and the second end of the second guide plate. The first guide plate and the second guide plate optimize the air field inside the air conditioning equipment, and reduce the abnormal wind cutting sound of the air blowing fins caused by vortex.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment, specifically an air conditioning device. Background Technology

[0002] For high-load air conditioning equipment, when the fan operates at high speed, the resistance of airflow through the heat exchanger fins increases, which may form turbulence or eddies, generating abnormal wind shear noise from the fins and affecting user comfort. Existing technology provides an air conditioning device that uses a rectifier structure such as a honeycomb panel between the fan and the heat exchanger to reduce noise; however, after long-term use, dust may accumulate on the honeycomb panel, increasing air resistance and leading to reduced heat transfer efficiency. Utility Model Content

[0003] This application aims to provide an air conditioning device that can at least solve or alleviate some of the problems existing in the prior art.

[0004] This application provides an air conditioning device, including: a housing having an air inlet and an air outlet opening into the housing, and a flow channel connecting the air inlet and the air outlet; a heat exchanger disposed within the flow channel inside the housing; a fan disposed within the housing and located between the heat exchanger and the air inlet, the fan having a volute formed by a volute top plate and a volute bottom plate and an impeller disposed within the volute, the air inlet being disposed corresponding to the impeller; the flow channel including an air supply section extending from the volute top plate towards the heat exchanger opening; a first guide plate and a second guide plate being provided in a manner that protrudes from the surface of the volute top plate towards the air supply section and having a first end and a second end respectively along the air supply direction, wherein the straight-line distance between the first end of the first guide plate and the first end of the second guide plate is greater than the straight-line distance between the second end of the first guide plate and the second end of the second guide plate.

[0005] In one or more embodiments, the first guide plate and the second guide plate are fixedly disposed on the top plate of the volute and integrally formed with the top plate of the volute.

[0006] In one or more embodiments, an air guide section is provided relative to the top plate of the volute, separated from the air supply section. The air guide section is integrally formed by extending from the end of the bottom plate of the volute. The bottom plate of the volute of the air supply section is formed by bending and extending away from the top plate of the volute.

[0007] In one or more embodiments, the air conditioning equipment further includes a first side plate and a second side plate that are perpendicular to the top plate and / or bottom plate of the volute and enclose each other to form an air supply section.

[0008] In one or more embodiments, the first guide plate and the first side plate are spaced apart by a predetermined distance; the second guide plate and the second side plate are spaced apart by a predetermined distance.

[0009] In one or more embodiments, at least a portion of the first guide vane is an arc segment, arranged in the form of a predetermined arc; at least a portion of the second guide vane is an arc segment, arranged in the form of a predetermined arc.

[0010] In one or more embodiments, the arc segment is an arc segment with a radius between 20cm and 75mm.

[0011] In one or more embodiments, at least a portion of the first end of the first guide plate and the second guide plate is a straight segment.

[0012] In one or more embodiments, the first guide plate and the second guide plate have a height greater than 12 mm in the direction perpendicular to the top plate of the volute.

[0013] In one or more embodiments, the angle between the extension line of the second end of the first guide plate and the outlet edge of the air supply section is greater than 60 degrees and less than 70 degrees; the angle between the extension line of the second end of the second guide plate and the outlet edge of the air supply section is greater than 60 degrees and less than 70 degrees.

[0014] In one or more embodiments, the thickness of the second end of the first guide plate and the second guide plate is greater than the thickness of the first end of the first guide plate and the second guide plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an air conditioning device provided in one or more embodiments of this application.

[0016] Figure 2 This is a schematic diagram of the internal structure of an air conditioning device provided in one or more embodiments of this application.

[0017] Figure 3 This is a schematic diagram of the structure of the volute top plate provided in one or more embodiments of this application.

[0018] Figure 4 This is a partially enlarged schematic diagram of the top plate of the volute provided in one or more embodiments of this application.

[0019] Reference numerals: Air conditioning equipment 100, casing 101, air inlet 1011, air outlet 1012, flow channel 1013, heat exchanger 102, fan 103, volute 1031, volute top plate 1031a, volute bottom plate 1031b, impeller 1032, air supply section 1033, first guide plate 104, second guide plate 105, first end 106, second end 107, air guide section 108, first side plate 1033a, second side plate 1033b, arc section 109, first arc section 1091, second arc section 1092, straight section 110. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Figure 1 This is a schematic diagram of the overall structure of the air conditioning device 100 provided in one or more embodiments of this application. Figure 1 The arrows in the image indicate the airflow direction of the air conditioning unit 100. Figure 2 This is a schematic diagram of the internal structure of the air conditioning device 100 provided in one or more embodiments of this application, see reference. Figure 1 and Figure 2 As shown, the air conditioning device 100 provided in one or more embodiments of this application includes: a housing 101, a heat exchanger 102, and a fan 103.

[0022] Specifically, the housing 101 has an air inlet 1011 and an air outlet 1012. The housing 101 has a flow channel 1013 connecting the air inlet 1011 and the air outlet 1012. A heat exchanger 102 is located within the flow channel 1013 near the air outlet 1012. A fan 103 is located between the heat exchanger 102 and the air inlet 1011. The fan 103 has a volute 1031 formed by a volute top plate 1031a and a volute bottom plate 1031b, and an impeller 1032 disposed within the volute 1031. The air inlet 1011 is positioned corresponding to the impeller 1032. The flow channel 1013 also includes an air supply section 1033 that opens toward the heat exchanger 102 and extends from the volute top plate 1031a.

[0023] Figure 3 This is a schematic diagram of the structure of the volute top plate 1031a provided in one or more embodiments of this application, see reference. Figure 3 As shown, the first guide plate 104 and the second guide plate 105 are disposed on the surface of the volute top plate 1031a in a form that protrudes toward the air supply section 1033. The first guide plate 104 and the second guide plate 105 have a first end 106 and a second end 107 respectively along the air supply direction. The straight distance between the first end 106 of the first guide plate 104 and the first end 106 of the second guide plate 105 is greater than the straight distance between the second end 107 of the first guide plate 104 and the second end 107 of the second guide plate 105.

[0024] In one or more embodiments of this application, when the air conditioning device 100 starts to run, under the action of the high-speed rotation of the impeller 1032, the outside air enters the flow channel 1013 inside the housing 101 from the air inlet 1011, and after being centrifugally pressurized by the impeller 1032, it passes through the flow channel 1013 and is blown towards the heat exchanger 102 along the air supply section 1033 formed by the extension of the top plate 1031a of the volute. After exchanging heat with the refrigerant fluid in the heat exchanger 102, it flows out of the air conditioning device 100 from the air outlet 1012.

[0025] The top plate 1031a of the volute is provided with a first guide plate 104 and a second guide plate 105 protruding from the air supply section 1033. These guide and rectify the airflow blowing from the air supply section 1033 toward the heat exchanger 102, thereby regulating and controlling the air entering through the impeller 1032 to flow more evenly toward the heat exchanger 102 and exchange heat with the refrigerant fluid flowing in the heat exchanger 102. This optimizes the airflow field within the air conditioning equipment 100 and avoids the problem of abnormal wind noise caused by the high-velocity air blown out by the fan 103 forming a large vortex and blowing directly onto the surface of the heat exchanger 102 when the wind blows on the fins of the heat exchanger 102.

[0026] By setting the first guide plate 104 and the second guide plate 105, the airflow blowing from the air supply section 1033 to the heat exchanger 102 is guided and rectified. This eliminates the need for additional rectifier honeycomb plates or similar structures between the fan 103 and the heat exchanger 102, achieving airflow guidance in a more economical and convenient manner. It reduces abnormal wind shear noise from the fins caused by frequent vortex changes without increasing air resistance within the air supply section 1033. It also avoids the problem of dust particles accumulating on the rectifier honeycomb plate, increasing air resistance, and affecting the heat exchange efficiency of the air conditioning equipment 100, which would otherwise occur if additional rectifier honeycomb plates were used.

[0027] Furthermore, the straight-line distance between the first end 106 of the first guide plate 104 and the first end 106 of the second guide plate 105 is greater than the straight-line distance between the second end 107 of the first guide plate 104 and the second end 107 of the second guide plate 105. That is, the straight-line distance between the ends of the first guide plate 104 and the second guide plate 105 that are close to the impeller 1032 is greater than the straight-line distance between the ends of the first guide plate 104 and the second guide plate 105 that are close to the outlet of the air supply section 1033.

[0028] In the above embodiments, the air flowing out of the impeller 1032 and the air supply section 1033 near the edge of the air supply section 1033 is blown out at a predetermined angle along the two side surfaces of the first guide plate 104 and the second guide plate 105 towards the approximate middle position of the air supply section 1033 in the horizontal plane under the guiding action of the first guide plate 104 and the second guide plate 105. This increases the air volume flowing to the middle position of the heat exchanger 102, further optimizes the air field in the air conditioning equipment 100, and thus improves the heat exchange efficiency of the air conditioning equipment 100.

[0029] In one or more embodiments, the first guide plate 104 and the second guide plate 105 are fixedly disposed on the surface of the volute top plate 1031a and integrally formed with the volute top plate 1031a.

[0030] Through the above implementation method, the first guide plate 104 and the second guide plate 105 are fixedly installed on the top plate 1031a of the volute, and the first guide plate 104 and the second guide plate 105 are located in the air supply section 1033 and are roughly in the same direction as the air supply. This makes it easier to guide the air flowing from the fan 103 to the heat exchanger 102, optimize the air field in the air conditioning equipment 100, reduce the possibility of the air blowing towards the heat exchanger 102 generating vortices, and avoid abnormal wind shearing noise from the wind blowing the fins.

[0031] Meanwhile, by making the first guide plate 104 and the second guide plate 105 integrally formed with the top plate 1031a of the volute, the manufacturing and installation are made simpler. This avoids the situation where the first guide plate 104 or the second guide plate 105, after being installed on the top plate 1031a of the volute in other forms, are in a high-speed airflow field for a long time, which may cause the first guide plate 104 or the second guide plate 105 to shift, deform or fall off, resulting in abnormal noise. At the same time, it also avoids the problem of increased wind resistance and further amplification of eddies, which may cause abnormal wind shearing noise when the air conditioning equipment 100 is running, affecting the user's comfort.

[0032] In one or more embodiments, an air guide section 108 is provided relative to the top plate 1031a of the volute, across the space of the air supply section 1033. The air guide section 108 is integrally formed by extending from the end of the bottom plate 1031b of the volute.

[0033] In this way, a guide section 108 is provided in the space between the air supply section 1033 and the top plate 1031a of the volute. This allows the air passing through the impeller 1032 to be blown more evenly to the heat exchanger 102 for heat exchange under the guidance of the top plate 1031a of the volute and the guide section 108. This makes the airflow to the heat exchanger 102 more stable, thereby further ensuring the heat exchange efficiency of the air conditioning equipment 100.

[0034] Furthermore, the end of the air guide section 108 is bent and extended away from the top plate 1031a of the volute.

[0035] Through the above-described implementation, the air blown towards the heat exchanger 102 via the air supply section 1033 is guided by the air guide section 108, which bends and extends away from the top plate 1031a of the volute, and flows to the bottom of the heat exchanger 102, where it exchanges heat with the refrigerant fluid in the pipes located at the bottom of the heat exchanger 102. This allows the airflow towards the heat exchanger 102 to be more evenly distributed to different parts of the heat exchanger 102, further improving the heat exchange efficiency of the air conditioning equipment 100.

[0036] In one or more embodiments, the air conditioning device 100 further includes a first side plate 1033a and a second side plate 1033b that are vertically disposed on both sides of the top plate 1031a and / or the bottom plate 1031b of the volute.

[0037] Through the above implementation method, the air supply section 1033 is formed by the volute top plate 1031a, volute bottom plate 1031b, first side plate 1033a and second side plate 1033b. By guiding the air blown out by the impeller 1032 to the heat exchanger 102, and by setting the first side plate 1033a and the second side plate 1033b to surround the air supply section 1033, the air blown out by the impeller 1032 is controlled to flow in the fixed flow channel 1013. The first side plate 1033a and the second side plate 1033b prevent the air from flowing to both sides and affecting the stability of the wind field at the air supply section 1033, thus preventing the problem of enhanced vortex.

[0038] In one or more embodiments, the first side plate 1033a and the second side plate 1033b are formed by bending and extending from the edge end of the top plate 1031a of the volute towards the bottom plate 1031b of the volute, that is, the first side plate 1033a and the second side plate 1033b are integrally formed with the top plate 1031a of the volute.

[0039] The first guide plate 104 is set at a predetermined distance from the first side plate 1033a, and the second guide plate 105 is set at a predetermined distance from the second side plate 1033b.

[0040] By controlling the first guide plate 104 and the second guide plate 105 to be positioned close to the first side plate 1033a and the second side plate 1033b respectively, and spaced at a predetermined distance from the first side plate 1033a and the second side plate 1033b, the position near the middle of the air supply section 1033 is left empty. This avoids the problem that the high-velocity airflow in the middle towards the heat exchanger 102 is affected by the guide plates, which would increase the wind resistance and affect the heat exchange efficiency of the air conditioning equipment 100.

[0041] Furthermore, by setting the first guide plate 104 and the second guide plate 105, the air blowing towards the first side plate 1033a and the second side plate 1033b can be guided and its flow direction changed to the middle position, which further optimizes the air field at the outlet of the air supply section 1033, reduces the problem of abnormal wind shearing noise caused by the wind blowing the fins due to the enhanced vortex or the frequent change of vortex due to the flow direction problem, and thus further improves the heat exchange efficiency of the air conditioning equipment 100.

[0042] Figure 4 This is a partially enlarged schematic diagram of the volute top plate 1031a provided in one or more embodiments of this application, wherein... Figure 4 The arrows in the text indicate the airflow direction. (See attached image.) Figure 4 As shown, at least a portion of the first guide vane 104 is an arc segment 109, arranged in a predetermined arc shape; at least a portion of the second guide vane 105 is an arc segment 109, arranged in a predetermined arc shape. Furthermore, the arc segment 109 has a radius ranging from 20mm to 75mm.

[0043] Furthermore, the arc segment 109 has a first arc segment 1091, a second arc segment 1092 and a straight segment 110 along the air supply direction, wherein the radius of the first arc segment 1091 is smaller than the radius of the second arc segment 1092.

[0044] In the above-described embodiment, an arc segment 109 is formed on one side of the first end 106 of the first guide plate 104 and the first end 106 of the second guide plate 105. More specifically, a first arc segment 1091 and a second arc segment 1092 are formed continuously from each other, and the radius of the first arc segment 1091 is smaller than the radius of the second arc segment 1092. This causes the airflow direction flowing through the first guide plate 104 and the second guide plate 105 to change significantly along the first arc segment 1091. The airflow after the change in direction flows through the second arc segment 1092, and is further guided towards the center of the heat exchanger 102 in the second arc segment 1092 with a larger radius (i.e., a smaller angle change). Subsequently, it continues to be guided along the straight segment 110 provided at the second end 107, so that the airflow direction is stabilized as a straight flow, thereby further optimizing the air field at the air supply section 1033 and reducing the abnormal wind shearing noise of the wind blowing the fins caused by frequent changes in eddies.

[0045] In one or more embodiments, the first guide plate 104 and the second guide plate 105 have a height greater than 12 mm in the direction perpendicular to the top plate 1031a of the volute.

[0046] Through the above implementation method, by limiting the height of the first guide plate 104 and the second guide plate 105 to be greater than 12mm, the first guide plate 104 and the second guide plate 105 can guide and rectify more air in the direction perpendicular to the top plate 1031a of the volute, avoiding the problem of insufficient air guidance and rectification caused by the height being too low, and further enhancing the effect of optimizing the wind field through the first guide plate 104 and the second guide plate 105.

[0047] In one or more embodiments, the angle between the extension line of the second end 107 of the first guide plate 104 and the outlet edge of the air supply section 1033 is greater than 60 degrees and less than 70 degrees; the angle between the extension line of the second end 107 of the second guide plate 105 and the outlet edge of the air supply section 1033 is greater than 60 degrees and less than 70 degrees.

[0048] Through the above implementation method, based on the first guide plate 104 and the first side plate 1033a being set at a predetermined distance, and the second guide plate 105 and the second side plate 1033b being set at a predetermined distance, the included angle between the first guide plate 104, the second guide plate 105 and the outlet edge of the air supply section 1033 is further controlled to be greater than 60 degrees and less than 70 degrees, so that the air guided by the first guide plate 104 and the second guide plate 105 is sent out towards the middle position of the heat exchanger 102, further optimizing the air field, changing the angle and vortex size of the air blowing on the heat exchanger 102, thereby eliminating abnormal wind noise.

[0049] In one or more embodiments, the thickness of the second end 107 of the first guide plate 104 and the second guide plate 105 is greater than the thickness of the first end 106 of the first guide plate 104 and the second guide plate 105.

[0050] Through the above implementation method, when the wind blows to the first guide plate 104, it first contacts the first end 106 of the first guide plate 104 and the second guide plate 105, which have a smaller thickness, thereby reducing the wind resistance at the first guide plate 104 and the second guide plate 105. This makes the thickness of the second end 107 of the first guide plate 104 and the second guide plate 105 greater than the thickness of the first end 106 of the first guide plate 104 and the second guide plate 105, thereby better optimizing the guiding effect of the first guide plate 104 and the second guide plate 105 and reducing the abnormal wind noise caused by frequent changes in eddies.

[0051] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An air conditioning device, characterized in that, include: The housing has an air inlet and an air outlet opening into the housing, and a flow channel connecting the air inlet and the air outlet; The heat exchanger is disposed within the flow channel inside the housing; A fan is disposed inside the housing and located between the heat exchanger and the air inlet. The fan has a volute formed by the volute top plate and the volute bottom plate and an impeller disposed inside the volute. The air inlet is disposed corresponding to the impeller. The flow channel includes an air supply section that extends toward the opening of the heat exchanger and extends from the top plate of the volute. The first guide plate and the second guide plate are arranged to protrude from the surface of the top plate of the volute towards the air supply section, and have a first end and a second end respectively along the air supply direction, wherein the straight distance between the first end of the first guide plate and the first end of the second guide plate is greater than the straight distance between the second end of the first guide plate and the second end of the second guide plate.

2. The air conditioning equipment according to claim 1, characterized in that, The first guide plate and the second guide plate are fixedly disposed on the top plate of the volute and are integrally formed with the top plate of the volute.

3. The air conditioning equipment according to claim 2, characterized in that, A guide section is provided relative to the top plate of the volute, and the guide section is integrally formed by extending from the end of the bottom plate of the volute. The air guide section is formed by bending and extending away from the top plate of the volute.

4. The air conditioning equipment according to claim 3, characterized in that, It also includes, The first side plate and the second side plate are perpendicular to the top plate and / or the bottom plate of the volute, respectively, and together form the air supply section.

5. The air conditioning equipment according to claim 4, characterized in that, The first guide plate and the first side plate are set at a predetermined distance; The second guide plate and the second side plate are set at a specified distance.

6. The air conditioning equipment according to claim 5, characterized in that, At least a portion of the first guide vane is an arc segment, set in the form of a specified arc. The second guide vane is at least partially an arc segment, set in the form of a specified arc.

7. The air conditioning equipment according to claim 6, characterized in that, The arc segment is an arc segment with a radius between 20mm and 75mm.

8. The air conditioning equipment according to claim 7, characterized in that, At least a portion of the second ends of the first guide vane and the second guide vane are straight segments.

9. The air conditioning equipment according to claim 8, characterized in that, The height of the first guide plate and the second guide plate in the direction perpendicular to the top plate of the volute is greater than 12 mm.

10. The air conditioning equipment according to claim 8, characterized in that, The angle between the extension line of the second end of the first guide plate and the outlet edge of the air supply section is greater than 60 degrees and less than 70 degrees. The angle between the extension line of the second end of the second guide plate and the outlet edge of the air supply section is greater than 60 degrees and less than 70 degrees.

11. The air conditioning equipment according to claim 10, characterized in that, The thickness of the second end of the first guide plate and the second guide plate is greater than the thickness of the first end of the first guide plate and the second guide plate.

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