Panel assembly and air conditioner

Abstract

The utility model provides a panel assembly and an air conditioner, and relates to the technical field of air conditioners. The panel assembly comprises a panel and a flow guide ring. The panel is provided with an air outlet corresponding to an axial flow fan of the outdoor unit. The flow guide ring comprises a first flow guide ring cylinder, a second flow guide ring cylinder and a connecting ring. The first flow guide ring cylinder is installed at the air outlet and connected with the panel, one end of the first flow guide ring cylinder extends to the inner side of the panel, and the other end of the first flow guide ring cylinder extends to the outer side of the panel. The second flow guide ring cylinder is arranged in the first flow guide ring cylinder, and the second flow guide ring cylinder and the first flow guide ring cylinder are arranged at intervals. The end, located on the inner side of the panel, of the first guide ring cylinder is connected with the end, located on the inner side of the panel, of the second guide ring cylinder through a connecting ring. Vent holes are formed in the portion, located on the outer side of the panel, of the side wall of the first flow guide ring cylinder. The air supply capacity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a panel assembly and an air conditioner. Background Art

[0002] An air conditioner generally consists of an outdoor unit and an indoor unit. The outdoor unit has a fan chamber and a compressor chamber. The fan chamber houses an outdoor heat exchanger and a fan. A panel with an air outlet is located in front of the fan chamber, while an air inlet is located behind the fan chamber. When the fan is running, outside air enters the fan chamber through the inlet, passes through the external heat exchanger, and is discharged through the outlet, thereby exchanging heat between the external heat exchanger and the air.

[0003] To achieve better airflow at the air outlet, existing technologies often install a guide ring at the air outlet. However, the existing guide ring generally gradually shrinks and then expands in the air outlet direction, which easily creates turbulent airflow on the air inlet side of the guide ring. This turbulent airflow causes pressure loss, thus affecting the air supply effect. Utility Model Content

[0004] The problem solved by the utility model is that the existing guide ring easily forms turbulence on the air inlet side, thereby affecting the air supply effect.

[0005] In order to solve the above problems, the present invention provides a panel assembly and an air conditioner, which can improve the problem of turbulence formed at the guide ring, thereby improving the air supply effect.

[0006] In a first aspect, the utility model provides a panel assembly for installation in an outdoor unit, the panel assembly comprising a panel and a guide ring;

[0007] The panel is provided with an air outlet corresponding to the axial flow fan of the outdoor unit;

[0008] The guide ring includes a first guide ring tube, a second guide ring tube and a connecting ring:

[0009] The first guide ring is installed at the air outlet and connected to the panel, one end of the first guide ring extends to the inner side of the panel, and the other end extends to the outer side of the panel;

[0010] The second guide ring is arranged in the first guide ring and is spaced apart from the first guide ring;

[0011] One end of the first guide ring tube located on the inner side of the panel and one end of the second guide ring tube located on the inner side of the panel are connected by a connecting ring;

[0012] A vent hole is provided on a portion of the side wall of the first guide ring located outside the panel.

[0013] The present application sets the guide ring with the above-mentioned structure. When the axial flow fan delivers air, the airflow first flows outward along the second guide ring until it temporarily detaches from the outer end of the second guide ring. Afterward, the airflow flows toward the first guide ring. During this process, the airflow flows through the wallless space between the first and second guide rings. After reaching the second guide ring, the airflow reattaches to the inner wall of the second guide ring and is finally discharged to the outside of the outdoor unit along the inner wall of the second guide ring. The flow area between the outer end of the second guide ring and the first guide ring is gradually expanded. This allows the airflow to be gradually decelerated as it flows from the second guide ring into the first guide ring, buffering the airflow with pressure pulsation components, alleviating airflow turbulence and achieving noise attenuation. Furthermore, the dynamic pressure of the airflow can be smoothly converted to static pressure, improving the static pressure characteristics and air supply performance, thereby making the air supply more efficient. Secondly, because the sidewalls of the first guide ring are equipped with ventilation holes, as air flows from the second guide ring into the first, a portion of the air will be blown out of the outdoor unit through the ventilation holes. When the subsequent airflow reattaches to the first guide ring, the airflow is not concentrated, and the flow rate of the air flowing from the second guide ring to the first guide ring gradually decreases, and it is blown out of the outdoor unit through the axial flow fan. In particular, the axial flow fan's dynamic pressure-to-static pressure conversion characteristics are improved in the operating area where ventilation resistance increases, and the PQ characteristic is improved, which overall improves air delivery capacity.

[0014] In an optional embodiment, the end surface of the second guide ring tube close to the outer side of the panel is located on the side of the vent close to the inner side of the panel, so that the outer end surface of the second guide ring tube is spaced apart from the outer end surface of the first guide ring tube.

[0015] In the present application, the end surface of the second guide ring tube close to the outer side of the panel is located on the side of the vent close to the inner side of the panel so that the outer end surface of the second guide ring tube is spaced relative to the outer end surface of the first guide ring tube. This can better form a wall-free space and make it easier for part of the air flow to flow out of the vent.

[0016] In an optional embodiment, the panel is provided with an inwardly bent flange at the outer periphery of the air outlet;

[0017] The outer periphery of the first guide ring is connected to the flange;

[0018] The flange and the outer side arm of the first guide ring tube are combined to form a guide groove;

[0019] The vent hole is communicated with the guide groove.

[0020] The present application provides an inwardly folded flange and connects the first guide ring tube to the flange, thereby forming a guide groove, thereby allowing the air flow out of the vent to flow more smoothly.

[0021] In an optional embodiment, the guide groove gradually increases in size toward the front side of the panel.

[0022] The present application arranges the guide groove to gradually increase in size toward the front of the panel, thus facilitating outward airflow.

[0023] In an optional embodiment, the flange includes a first bending section and a second bending section;

[0024] The first bending section is provided at the outer periphery of the air outlet and extends obliquely toward the back of the panel, and the second bending section is provided at the inner periphery of the first bending section and is parallel to the panel;

[0025] The outer side wall of the first guide ring is connected to the second bending section.

[0026] The present invention provides a flange with a first bend section and a second bend section, and tilts the first bend section so that the airflow from the vent can flow outward along the first bend section, achieving a better airflow guidance effect. This arrangement can also enhance the mechanical strength of the panel.

[0027] In an optional embodiment, there are multiple vent holes, and the multiple vent holes are arranged at intervals in the circumferential direction of the first guide ring.

[0028] The present application provides a plurality of vent holes in the circumferential direction of the first guide ring tube, thereby facilitating the outward flow of air.

[0029] In an optional embodiment, the cross section of the connecting ring is arc-shaped, and both ends of the connecting ring are respectively connected to the first guide ring tube and the second guide ring tube;

[0030] The connecting ring is protruded toward the back side of the panel.

[0031] The present application sets the connecting ring to the above-mentioned structure, which can avoid the formation of turbulence in the airflow at the connecting ring.

[0032] In an optional embodiment, the cross-section of the connecting ring is semicircular.

[0033] In this application, the cross-section of the connecting ring is set to a semicircular ring, which has a better diversion effect.

[0034] In an optional embodiment, the first guide ring and the second guide ring are both cylindrical, and the axis of the first guide ring is collinear with the axis of the second guide ring; and / or,

[0035] The panel assembly further includes an air outlet grille, and the air outlet grille cover is arranged at one end of the outer side of the first guide ring.

[0036] In the present application, the first guide ring tube and the second guide ring tube are coaxially arranged, which facilitates uniform air supply to the outside.

[0037] In a second aspect, the present invention provides an air conditioner, comprising a housing, an axial flow fan, and a panel assembly according to any one of the aforementioned embodiments;

[0038] The housing is provided with a fan chamber, and the axial flow fan is installed in the fan chamber;

[0039] The panel is mounted on the housing, and the axial flow fan corresponds to the air outlet.

[0040] This application can improve the air supply capacity through the panel assembly and the guide ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic structural diagram of an outdoor unit of an air conditioner provided in an embodiment of the present utility model;

[0042] Figure 2 A schematic structural diagram of a panel assembly of an air conditioner provided by an embodiment of the present utility model;

[0043] Figure 3 A schematic diagram of air flow of an air conditioner provided by an embodiment of the present utility model;

[0044] Figure 4 A schematic diagram of the static pressure and air volume curve provided in an embodiment of the present invention.

[0045] Icons: 100-panel assembly; 110-panel; 111-air outlet; 113-flange; 115-guide groove; 117-first bending section; 119-second bending section; 130-guide ring; 131-first guide ring tube; 133-second guide ring tube; 135-connecting ring; 137-vent; 150-grille; 300-air conditioner; 310-outdoor unit; 311-housing; 313-axial fan. DETAILED DESCRIPTION

[0046] The existing guide ring 130 generally gradually shrinks and then gradually expands in the air outlet direction. The airflow is likely to form a disturbed airflow on the air inlet side of the guide ring 130. The disturbed airflow will cause pressure loss, thereby affecting the air supply effect.

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Please refer to Figures 1 to 4 This embodiment provides an air conditioner 300. The outdoor unit 310 of the air conditioner 300 includes a housing 311, an axial flow fan 313, and a panel assembly 100. The housing 311 is provided with a fan chamber. The axial flow fan 313 is installed in the fan chamber. The panel assembly 100 is installed on the front of the housing 311, and the axial flow fan 313 corresponds to the air outlet 111 provided on the panel assembly 100.

[0049] Of course, an outdoor heat exchanger is also located in the fan chamber of the housing 311. The rear and left sides of the fan chamber form an air inlet, while the front side forms an air outlet 111. The operation of the axial flow fan 313 allows air outside the housing 311 to flow in through the air inlet, exchange heat with the external heat exchanger, and then be delivered out of the air outlet 111 under the action of the fan.

[0050] Secondly, a compressor chamber is also set on one side of the fan chamber, in which a compressor, a four-way valve and an electric control box are set. The compressor is connected to an external heat exchanger through the four-way valve.

[0051] Generally, a rectangular opening is formed on the front side of the housing 311 located at the fan cavity. The panel assembly 100 is installed on the front side of the housing 311 so that air flows out from the air outlet 111 of the panel assembly 100 .

[0052] Please refer to Figures 1 to 4 In this embodiment, the panel assembly 100 includes a panel 110 and a guide ring 130. The panel 110 is provided with an air outlet 111 corresponding to the axial fan 313 of the outdoor unit 310. The guide ring 130 includes a first guide ring 131, a second guide ring 133, and a connecting ring 135. The first guide ring 131 is mounted on the air outlet 111 and connected to the panel 110. One end of the first guide ring 131 extends to the inside of the panel 110, and the other end extends to the outside of the panel 110. The second guide ring 133 is disposed within the first guide ring 131 and spaced apart from the first guide ring 131. The end of the first guide ring 131 located inside the panel 110 and the end of the second guide ring 133 located inside the panel 110 are connected by a connecting ring 135. The side wall of the first guide ring 131 located outside the panel 110 is provided with a vent 137.

[0053] In this embodiment, the guide ring 130 is configured with the aforementioned structure. When the axial fan 313 delivers air, the airflow first flows outward along the second guide ring 133 until it flows out of the outer end of the second guide ring 133 and temporarily separates from it. The airflow then flows toward the first guide ring 131. During this process, the airflow passes through the unwalled space between the first and second guide rings 131, 133. After reaching the second guide ring 133, the airflow reattaches to the inner wall of the second guide ring 133 and is ultimately discharged along the inner wall of the second guide ring 133 to the outside of the outdoor unit 310. The flow area between the outer end of the second guide ring 133 and the first guide ring 131 gradually expands. This gradually decelerates the airflow as it flows from the second guide ring 133 into the first guide ring 131, buffering the airflow with pressure pulsation, alleviating airflow turbulence and achieving noise reduction. Moreover, the dynamic pressure of the airflow can be smoothly converted into static pressure, so that the static pressure characteristics and air supply performance are improved, thereby making better use of the air supply. Since the side wall of the first guide ring tube 131 is provided with an air vent 137, when the airflow flows from the second guide ring tube 133 into the first guide ring tube 131, a part of the airflow will be blown out of the outdoor unit 310 through the air vent 137. When the subsequent airflow attaches to the first guide ring tube 131 again, the airflow blown out is not concentrated, and the flow rate of the airflow blown from the second guide ring tube 133 to the first guide ring tube 131 is gradually reduced, and is blown out of the outdoor unit 310 through the axial flow fan 313. Please refer to Figure 4 The dotted line is the curve of static pressure and air volume when there are no vents, and the solid line is the curve of static pressure and air volume when there are vents. Figure 4 It can be seen that in the working point area where the ventilation resistance becomes larger, the conversion characteristics of the axial flow fan 313 from dynamic pressure to static pressure are improved, the PQ characteristics are improved, and the overall air supply capacity is improved.

[0054] Please refer to Figures 1 to 4 In this embodiment, the inner end surfaces of the first guide ring 131 and the second guide ring 133 are flush. The length of the first guide ring 131 is greater than that of the second guide ring 133, so the outer end surface of the second guide ring 133 is recessed inward relative to the outer end surface of the first guide ring 131. Furthermore, because the second guide ring 133 is spaced apart from the first guide ring 131, the cross-sectional area of ​​the flow channel of the guide ring 130 is gradually expanded in the air supply direction.

[0055] In this embodiment, the end surface of the second guide ring 133 close to the outer side of the panel 110 is located on the side of the vent 137 close to the inner side of the panel 110, so that the outer end surface of the second guide ring 133 is spaced apart from the outer end surface of the first guide ring 131.

[0056] In this embodiment, the end surface of the second guide ring tube 133 close to the outer side of the panel 110 is located on the side of the vent hole 137 close to the inner side of the panel 110, so that the outer end surface of the second guide ring tube 133 is spaced relative to the outer end surface of the first guide ring tube 131. This can better form a wall-free space and make it easier for part of the air to flow out of the vent hole 137.

[0057] Furthermore, the end surface of the second guide ring tube 133 is located inside the vent hole 137 , and the inner edge of the vent hole 137 may be flush with the end surface of the second guide ring tube 133 .

[0058] Please refer to Figures 1 to 4 In this embodiment, the panel 110 is provided with an inwardly bent flange 113 on the outer periphery of the air outlet 111. The outer periphery of the first guide ring 131 is connected to the flange 113. The flange 113 and the outer side arm of the first guide ring 131 enclose a guide groove 115. The vent 137 is connected to the guide groove 115.

[0059] In this embodiment, the inwardly folded flange 113 is provided and the first guide ring 131 is connected to the flange 113 , thereby forming the guide groove 115 , so that the airflow out of the vent hole 137 can flow more smoothly.

[0060] In some embodiments, the panel 110 can be formed by stamping a metal plate, and the flange 113 is also integrally formed with the panel 110 during the stamping process, and then the guide ring 130 is installed at the air outlet 111. Of course, the panel assembly 100 of the present application can also be integrally injection molded by the panel 110 and the guide ring 130 through an injection molding process.

[0061] Furthermore, the guide groove 115 gradually increases in size toward the front of the panel 110 .

[0062] In this embodiment, the guide groove 115 is arranged to gradually increase in size toward the front of the panel 110 , thereby facilitating outward airflow.

[0063] Specifically, the guide groove 115 is annular, and the cross section of the guide groove 115 gradually increases toward the front side of the panel 110 .

[0064] Please refer to Figures 1 to 4 In this embodiment, the flange 113 includes a first bend section 117 and a second bend section 119. The first bend section 117 is located on the outer periphery of the air outlet 111 and extends obliquely toward the back of the panel 110. The second bend section 119 is located on the inner periphery of the first bend section 117 and is parallel to the panel 110. The outer wall of the first guide ring 131 is connected to the second bend section 119.

[0065] In this embodiment, the flange 113 is configured as a first bend section 117 and a second bend section 119, and the first bend section 117 is tilted. This allows the airflow from the vent 137 to flow outward along the first bend section 117, resulting in a better airflow guidance effect. This configuration can also enhance the mechanical strength of the panel 110.

[0066] Specifically, the second bent plate and the outer end surface of the second guide ring 133 are coplanar. The length of the first guide ring 131 is approximately twice the length of the second guide ring 133. Of course, the lengths of the first guide ring 131 and the second guide ring 133 can also be set according to actual needs, for example, 1.2 times, 1.5 times, 3 times, etc., depending on the speed and air intake volume of the axial fan 313, and the size of the guide ring 130.

[0067] In this embodiment, there are a plurality of vent holes 137 , and the plurality of vent holes 137 are arranged at intervals in the circumferential direction of the first guide ring 131 .

[0068] In this embodiment, a plurality of vent holes 137 are provided on the circumference of the first guide ring 131 , thereby facilitating the outward flow of air.

[0069] Please refer to Figures 1 to 4 In this embodiment, the cross section of the connecting ring 135 is arc-shaped, and the two ends of the connecting ring 135 are respectively connected to the first guide ring tube 131 and the second guide ring tube 133. The connecting ring 135 is protruded toward the back of the panel 110.

[0070] In this embodiment, the connecting ring 135 is configured as the above-mentioned structure, which can avoid the formation of turbulence in the airflow at the connecting ring 135 .

[0071] In this embodiment, the cross section of the connecting ring 135 is semicircular.

[0072] In this embodiment, the cross section of the connecting ring 135 is set to be a semicircular ring, which has a better diversion effect.

[0073] Specifically, the first guide ring 131 and the second guide ring 133 are both cylindrical, and the axis of the first guide ring 131 is collinear with the axis of the second guide ring 133. The panel assembly 100 further includes an air outlet grille 150, which is disposed on one end of the outer side of the first guide ring 131.

[0074] In this embodiment, the first guide ring 131 and the second guide ring 133 are coaxially arranged to facilitate uniform air delivery. The air outlet grille 150 can be mounted on the first guide ring 131 by snapping.

[0075] Secondly, the air conditioner 300 also includes an indoor unit, which is connected to the four-way valve through a pipeline. The indoor unit is generally installed indoors and supplies air to the room to achieve heat exchange with the indoor air.

[0076] In summary, the panel assembly 100 and the air conditioner 300 provided in this embodiment are provided with a guide ring 130 and ventilation holes. When the axial flow fan 313 supplies air outward, the airflow will first flow outward along the second guide ring tube 133 until it flows out from the outer end of the second guide ring tube 133 and is temporarily peeled off. Then, the airflow will flow toward the first guide ring tube 131. During this process, the airflow will flow through the wallless space between the first guide ring tube 131 and the second guide ring tube 133. After the airflow flows to the second guide ring tube 133, it will reattach to the inner tube wall of the second guide ring tube 133, and finally be discharged to the outside of the outdoor unit 310 along the inner tube wall of the second guide ring tube 133. The flow area between the outer end of the second guide ring 133 and the first guide ring 131 is gradually expanded. This allows the airflow to be gradually decelerated as it flows from the second guide ring 133 to the first guide ring 131. This buffers the airflow with pressure pulsation, alleviates airflow turbulence, and reduces noise. Furthermore, the dynamic pressure of the airflow is smoothly converted to static pressure, improving static pressure characteristics and air supply performance, thereby increasing air supply efficiency. Secondly, because the sidewalls of the first guide ring 131 are provided with vents 137, as the airflow flows from the second guide ring 133 to the first guide ring 131, a portion of the airflow will be blown out of the outdoor unit 310 through the vents 137. When the subsequent airflow reattaches to the first guide ring 131, the airflow is not concentrated. The flow rate of the airflow from the second guide ring 133 to the first guide ring 131 gradually decreases, and the airflow is blown out of the outdoor unit 310 through the axial fan 313. Especially in the working point area where the ventilation resistance becomes large, the conversion characteristics of the axial flow fan 313 from dynamic pressure to static pressure are improved, the PQ characteristics are improved, and the overall air supply capacity is improved.

[0077] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A panel assembly for installation on an outdoor unit (310), characterized in that: The panel assembly includes a panel (110) and a guide ring (130); The panel (110) is provided with an air outlet (111) corresponding to the axial flow fan (313) of the outdoor unit (310); The guide ring (130) includes a first guide ring cylinder (131), a second guide ring cylinder (133) and a connecting ring (135): The first guide ring (131) is installed at the air outlet (111) and connected to the panel (110); one end of the first guide ring (131) extends to the inner side of the panel (110), and the other end extends to the outer side of the panel (110); The second guide ring (133) is arranged in the first guide ring (131) and is spaced apart from the first guide ring (131); One end of the first guide ring tube (131) located on the inner side of the panel (110) and one end of the second guide ring tube (133) located on the inner side of the panel (110) are connected via a connecting ring (135); A vent hole (137) is provided on a portion of the side wall of the first guide ring (131) located outside the panel (110).

2. The panel assembly according to claim 1, wherein: An end surface of the second guide ring tube (133) close to the outer side of the panel (110) is located on a side of the vent hole (137) close to the inner side of the panel (110), so that the outer end surface of the second guide ring tube (133) is spaced apart from the outer end surface of the first guide ring tube (131).

3. The panel assembly according to claim 1, wherein: The panel (110) is provided with an inwardly bent flange (113) at the outer periphery of the air outlet (111); The outer periphery of the first guide ring (131) is connected to the flange (113); The flange (113) and the outer side arm of the first guide ring tube (131) enclose a guide groove (115); the vent hole (137) is in communication with the guide groove (115).

4. The panel assembly according to claim 3, wherein: The guide groove (115) gradually increases in size toward the front of the panel (110).

5. The panel assembly according to claim 3, wherein: The flange (113) includes a first bending section (117) and a second bending section (119); The first bending section (117) is arranged at the outer periphery of the air outlet (111) and extends obliquely toward the back of the panel (110); the second bending section (119) is arranged at the inner periphery of the first bending section (117); the second bending section (119) is parallel to the panel (110); The outer side wall of the first guide ring (131) is connected to the second bending section (119).

6. The panel assembly according to any one of claims 1 to 5, characterized in that: There are a plurality of vent holes (137), and the plurality of vent holes (137) are arranged at intervals in the circumferential direction of the first guide ring tube (131).

7. The panel assembly according to any one of claims 1 to 5, characterized in that: The cross section of the connecting ring (135) is in an arc shape, and the two ends of the connecting ring (135) are respectively connected to the first guide ring cylinder (131) and the second guide ring cylinder (133); The connecting ring (135) is protruded toward the back side of the panel (110).

8. The panel assembly according to claim 7, wherein: The cross section of the connecting ring (135) is semicircular.

9. The panel assembly according to any one of claims 1 to 5, characterized in that: The first guide ring (131) and the second guide ring (133) are both cylindrical, and the axis of the first guide ring (131) and the axis of the second guide ring (133) are collinear; and / or, The panel assembly further comprises an air outlet grille (150), and the air outlet grille (150) is covered at one end of the outer side of the first guide ring cylinder (131).

10. An air conditioner, characterized in that: The air conditioner (300) comprises a housing (311), an axial flow fan (313) and a panel assembly according to any one of claims 1 to 9; The housing (311) is provided with a fan chamber, and the axial flow fan (313) is installed in the fan chamber; the panel (110) is installed on the housing (311), and the axial flow fan (313) corresponds to the air outlet (111).

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