Outdoor unit and air conditioner

Abstract

The utility model provides an outdoor unit and an air conditioner, and relates to the field of air conditioners. The outdoor unit comprises a machine shell and a fan arranged in the machine shell, the machine shell comprises a front panel, the front panel comprises a panel part, a flow guide ring part and an air outlet mesh enclosure part, the panel part, the flow guide ring part and the air outlet mesh enclosure part are integrally arranged, the flow guide ring part protrudes out of the panel part, and the air outlet mesh enclosure part is arranged at the air outlet end of the flow guide ring part; a hub is coaxially and fixedly arranged on an output shaft of the fan, fan blades are fixedly installed on the hub, the tail wing end of each fan blade is arranged in the flow guide ring part, and the ratio of the distance X between the tail wing end and the panel part to the length H of the flow guide ring part is 0.31-0.89, or the ratio of the distance X between the tail wing end and the panel part to the distance E between the tail wing end and the air outlet mesh enclosure part is 0.85-2.38. According to the outdoor unit, the air outlet amount of the outdoor unit is increased, and then the gas flowing efficiency and the heat exchange efficiency of the outdoor unit are improved. In addition, if the air volume is not changed, the air speed of the outdoor unit can be properly reduced, and therefore the air noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an outdoor unit and an air conditioner. Background Art

[0002] A split-type air conditioner includes an indoor unit and an outdoor unit. The front panel of the outdoor unit is provided with an air outlet grille. The outdoor unit is provided with a heat exchanger, a fan, a compressor, etc. The compressor is used to compress the refrigerant, the heat exchanger is used to exchange heat between the refrigerant and the gas in the outdoor unit, and the fan is used to discharge the gas in the outdoor unit from the air outlet grille to accelerate the gas flow in the outdoor unit, thereby improving the heat exchange efficiency of the outdoor unit.

[0003] However, in the prior art, the air output of the outdoor unit of the air conditioner is relatively small, resulting in relatively low heat exchange efficiency. Utility Model Content

[0004] The first purpose of the present utility model is to provide an outdoor unit to solve the technical problems of small air output and low heat exchange efficiency of the outdoor unit in the prior art.

[0005] The outdoor unit provided by the present invention includes a casing and a fan arranged in the casing, the casing includes a front panel, the front panel includes a panel portion, a guide ring portion and an air outlet mesh cover portion, the three are integrated, and the guide ring portion protrudes outward from the panel portion, and the air outlet mesh cover portion is arranged at the air outlet end of the guide ring portion; the output shaft of the fan is coaxially fixed with a hub, and the hub is fixedly mounted with a fan blade, the tail end of the fan blade is arranged in the guide ring portion, and the ratio of the distance X between the tail end and the outer side surface of the panel portion to the protruding length H of the guide ring portion relative to the outer side surface of the panel portion is in the range of 0.31 to 0.89, or the ratio of the distance X between the tail end and the outer side surface of the panel portion to the distance E between the tail end and the air outlet mesh cover portion is in the range of 0.85 to 2.38.

[0006] The outdoor unit provided by the utility model can produce the following beneficial effects:

[0007] First, because the air flows from the blade tip to the tail end during the air flow diversion process, the technical solution provided by the present invention, namely, positioning the tail end of the blade within the guide ring portion and relatively far from the panel portion, can divert the air from the blade tip directly into the guide ring portion, thereby increasing the air output of the outdoor unit, thereby improving the air flow efficiency and the heat exchange efficiency of the outdoor unit. Furthermore, if the air output is the same, the outdoor unit provided by the present invention can appropriately reduce the wind speed compared to the outdoor unit in the prior art, thereby reducing wind noise.

[0008] Furthermore, compared with the outdoor unit in the prior art, while the maximum thickness of the outdoor unit along the front-to-back direction is consistent, the outdoor unit provided by the utility model has a guide ring portion that is protruding relative to the panel portion, which is actually equivalent to reducing the distance between the panel portion of the front panel and the rear wall panel of the casing. The main body thickness or average thickness of the entire outdoor unit is actually reduced, making it more miniaturized, thereby reducing space occupancy and facilitating transportation and high-altitude operations.

[0009] In addition, the panel part, the guide ring part and the air outlet mesh cover part of the front panel are integrated into one, which makes the front panel more integrated, thereby having higher structural strength, better appearance consistency and more beautiful appearance. Moreover, the integrated setting of the three can also be assembled as a whole, thereby greatly simplifying the assembly process and improving assembly efficiency; when disassembling, it can also be disassembled as a whole.

[0010] Furthermore, a distance X between the tail wing end and the outer side surface of the panel portion is 24 mm to 38 mm.

[0011] Furthermore, the protrusion length H of the guide ring relative to the outer side surface of the panel portion is 43mm to 76mm. Under this technical solution, the outward protrusion length of the guide ring portion is relatively appropriate, ensuring sufficient space to accommodate the fan blades and a sufficient distance between the tail end and the panel portion, but not too long to prevent the air guided by the fan blades from being discharged in time, and the appearance of the outdoor unit is not too abrupt.

[0012] Furthermore, the distance E between the tail wing end and the air outlet mesh cover is 16mm to 28mm. Under this technical solution, the distance between the tail wing end of the fan blade and the air outlet mesh cover is relatively appropriate. First, the distance between the two is not too large, so that the air guided by the fan blade can be discharged from the air outlet mesh cover in a timely manner after continuing to flow forward for a short distance in the guide ring. Second, the distance within this range is not too small to cause the discharged airflow to be too rapid and chaotic, so the air outlet effect is also taken into account.

[0013] Furthermore, the distance X between the tail wing end and the outer side surface of the panel portion is 30 mm, the protrusion length H of the guide ring portion relative to the outer side surface of the panel portion is 55 mm, and the distance E between the tail wing end and the air outlet mesh portion is 20 mm. Under this technical solution, the distance X between the tail wing end and the outer side surface of the panel portion, the protrusion length X of the guide ring portion relative to the outer side surface of the panel portion, and the distance E between the tail wing end and the air outlet mesh portion are all relatively moderate.

[0014] Furthermore, the ratio of the distance D between the tail fin end and the inner side surface of the guide ring portion to the inner diameter of the guide ring portion is in the range of 0.01 to 0.07. Under this technical solution, the distance D between the tail fin end and the inner side surface of the guide ring portion is relatively small relative to the inner diameter of the guide ring portion, which can effectively prevent gas backflow.

[0015] Furthermore, the distance D between the tail fin end and the inner side surface of the guide ring portion is 3 mm to 15 mm. Under this technical solution, the distance between the tail fin end and the inner side surface of the guide ring portion is relatively small, which can effectively prevent gas backflow, but not too small to ensure smooth installation of the fan blade and effectively prevent the tail fin end of the fan blade from colliding with the guide ring portion.

[0016] Furthermore, the distance D between the tail wing end and the inner side surface of the guide ring is 8 mm. Under this technical solution, the distance D between the tail wing end and the inner side surface of the guide ring is relatively moderate, which better takes into account the two effects of avoiding backflow and avoiding collision.

[0017] Furthermore, the distance B between the hub and the air outlet mesh is 49 mm; the length L of the hub within the guide ring is 1 mm, or the ratio of the length of the hub within the guide ring to the length of the guide ring is 1 / 55. Under this technical solution, the hub is moved outward from the casing toward the guide ring, facilitating the relocation of the tail end of the fan blade into the guide ring. The hub occupies relatively little space within the guide ring, resulting in relatively low wind resistance, which helps ensure the air output of the air conditioner outdoor unit.

[0018] Furthermore, the pressure surface of the fan blade facing the air outlet mesh cover is concavely arranged inside the casing. Such an arrangement is beneficial for the fan blade to guide the airflow to be discharged forward.

[0019] Furthermore, the front panel is a sheet metal part, and the panel part, the guide ring part and the air outlet mesh cover part are stamped as one piece; or, the front panel is a plastic part, and the panel part, the guide ring part and the air outlet mesh cover part are molded as one piece.

[0020] Under this technical solution, if the front panel is a sheet metal part, the panel part, the guide ring part and the air outlet mesh cover part can be manufactured through integrated stamping and bending processes, and the structural strength of the sheet metal part is relatively high; if the front panel is a plastic part, the panel part, the guide ring part and the air outlet mesh cover part can be integrally formed through injection molding and other processes. At this time, the weight of the front panel is relatively light.

[0021] Furthermore, the air inlet end of the guide ring portion transitions to the panel portion in an arc shape. Under this technical solution, the air inlet and air inlet angle of the guide ring portion are both relatively large, and the wind resistance of the arc transition portion is relatively small, which facilitates the smooth entry of air in the air conditioner outdoor unit into the guide ring portion.

[0022] The second object of the present utility model is to provide an air conditioner to solve the technical problems in the prior art that the air output of the outdoor unit is relatively small and the heat exchange efficiency is relatively low.

[0023] The air conditioner provided by the present invention comprises the outdoor unit described above and an indoor unit, wherein the outdoor unit and the indoor unit are connected via a refrigerant pipe. The air conditioner has all the advantages of the outdoor unit described above, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A partial front view of the outdoor unit provided by an embodiment of the present utility model, excluding the air outlet mesh cover of the front panel;

[0026] Figure 2 for Figure 1 AA view in FIG, including the air outlet grille portion of the front panel;

[0027] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0028] Description of reference numerals:

[0029] 110- panel portion; 120- guide ring portion; 130- air outlet mesh cover portion;

[0030] 200-fan; 300-hub; 400-blade; 401-pressure surface; 410-tail end; 420-blade tip. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] This embodiment provides an outdoor unit, such as Figures 1 to 3As shown, the outdoor unit includes a casing and a fan 200 arranged in the casing. The casing includes a front panel, which includes a panel portion 110, a guide ring portion 120 and an air outlet mesh cover portion 130. The three are integrated, and the guide ring portion 120 protrudes outward from the panel portion 110. The air outlet mesh cover portion 130 is arranged at the air outlet end of the guide ring portion 120; the output shaft of the fan 200 is coaxially fixed with a hub 300, and the hub 300 is fixedly installed with a fan blade 400. The tail end 410 of the fan blade 400 is disposed within the guide ring portion 120, and the ratio of the distance X between the tail end 410 and the outer side surface of the panel portion 110 to the protruding length H of the guide ring portion 120 relative to the outer side surface of the panel portion 110 is in the range of 0.31 to 0.89. Alternatively, the ratio of the distance X between the tail end 410 and the outer side surface of the panel portion 110 to the distance E between the tail end 410 and the air outlet grille portion 130 is in the range of 0.85 to 2.38. The tail end 410 of the fan blade 400 is the end with the largest trailing edge diameter.

[0033] Because air flows from the blade tip 420 to the tail end 410 during the air flow diversion process of the fan blade 400, the technical solution provided by this embodiment, namely, positioning the tail end 410 of the fan blade 400 within the guide ring portion 120 and relatively far from the panel portion 110, can divert air from the blade tip 420 of the fan blade 400 directly into the guide ring portion 120, thereby increasing the air output of the outdoor unit and thereby improving the air flow efficiency and heat exchange efficiency of the outdoor unit. Furthermore, if the air output is the same, the outdoor unit provided by this embodiment can appropriately reduce the wind speed compared to the outdoor unit in the prior art, thereby reducing wind noise.

[0034] Furthermore, compared with the outdoor unit in the prior art, when the maximum thickness of the outdoor unit along the front-to-back direction is consistent, the outdoor unit provided in this embodiment has the guide ring portion 120 protruding relative to the panel portion 110, which is actually equivalent to reducing the distance between the panel portion 110 of the front panel and the rear wall panel of the casing. The main body thickness or average thickness of the entire outdoor unit is actually reduced, and it is more miniaturized, thereby reducing space occupancy and facilitating transportation and high-altitude operations.

[0035] In addition, the panel portion 110, the guide ring portion 120 and the air outlet mesh cover portion 130 of the front panel are integrated into one, which makes the front panel more integrated, thereby having higher structural strength, better appearance consistency and more beautiful appearance. Moreover, the integrated arrangement of the three can also be assembled in an integrated manner, thereby greatly simplifying the assembly process and improving assembly efficiency; when disassembling, it can also be disassembled in an integrated manner.

[0036] Specifically, in this embodiment, Figure 3 As shown, the distance X between the tail fin end 410 and the outer side surface of the panel portion 110 is 24 mm to 38 mm.

[0037] Specifically, in this embodiment, Figure 3 As shown, the protrusion length H of the guide ring portion 120 relative to the outer side surface of the panel portion 110 is 43mm to 76mm. In this configuration, the outward protrusion length of the guide ring portion 120 is relatively appropriate, ensuring sufficient space to accommodate the fan blades 400 and a sufficient distance between the tail end 410 and the panel portion 110, while not being too long to prevent the air guided by the fan blades 400 from being discharged in a timely manner, and the appearance of the outdoor unit is not too abrupt.

[0038] Specifically, in this embodiment, continue as Figure 3 As shown, the distance E between the tail wing end 410 and the air outlet mesh cover portion 130 is 16 mm to 28 mm. This dimension does not include the thickness of the air outlet mesh cover portion 130. Axially, a portion of the air outlet mesh cover portion 130 is inside the guide ring portion 120, and another portion is outside the guide ring portion 120. For example, the thickness of the air outlet mesh cover portion 130 is 10 mm, of which 5 mm is inside the guide ring portion 120 and 5 mm is outside the guide ring portion 120. Under this arrangement, the distance between the tail wing end 410 of the fan blade 400 and the air outlet mesh cover portion 130 is relatively suitable. First, the distance between the two is not too large. Therefore, the air guided by the fan blade 400 can be discharged from the air outlet mesh cover portion 130 in a timely manner after continuing to flow forward for a short distance within the guide ring portion 120. Second, the distance within this range is not too small to cause the discharged airflow to be too rapid and chaotic, thus taking into account the air outlet effect.

[0039] More specifically, in this embodiment, the distance X between the tail wing end 410 and the outer side surface of the panel portion 110 can be 30 mm, the protrusion length X of the guide ring portion 120 relative to the outer side surface of the panel portion 110 can be 55 mm, and the distance E between the tail wing end 410 and the air outlet mesh portion 130 can be 20 mm. In this configuration, the distance X between the tail wing end 410 and the outer side surface of the panel portion 110, the protrusion length X of the guide ring portion 120 relative to the outer side surface of the panel portion 110, and the distance E between the tail wing end 410 and the air outlet mesh portion 130 are all relatively moderate.

[0040] Specifically, in this embodiment, the ratio of the distance D between the fin end 410 and the inner side surface of the guide ring portion 120 to the inner diameter of the guide ring portion 120 is in the range of 0.01 to 0.07. This arrangement makes the distance D between the fin end 410 and the inner side surface of the guide ring portion 120 relatively small relative to the inner diameter of the guide ring portion 120, effectively preventing gas backflow.

[0041] Specifically, in this embodiment, Figure 3As shown, the distance D between the tail fin end 410 and the inner side surface of the guide ring portion 120 is 3 mm to 15 mm. In this arrangement, the distance between the tail fin end 410 and the inner side surface of the guide ring portion 120 is relatively small, which can effectively prevent gas backflow, but not too small to ensure smooth installation of the fan blade 400 and effectively prevent collision between the tail fin end 410 of the fan blade 400 and the guide ring portion 120.

[0042] More specifically, in this embodiment, the distance D between the tail wing end 410 and the inner side surface of the guide ring portion 120 may be 8 mm, which is a moderate value and better takes into account both the effects of avoiding backflow and avoiding collision.

[0043] More specifically, in this embodiment, the distance B between the hub 300 and the air outlet mesh cover 130 is 49 mm; the length L of the hub 300 within the guide ring 120 is 1 mm, or the ratio of the length of the hub 300 within the guide ring 120 to the length of the guide ring 120 is 1 / 55. With this arrangement, the hub 300 is moved outward from the housing toward the guide ring 120, facilitating the relocation of the tail end 410 of the blade 400 into the guide ring 120. Furthermore, the hub 300 occupies relatively little space within the guide ring 120, resulting in relatively low wind resistance, which helps ensure the air output of the air conditioner outdoor unit.

[0044] Specifically, in this embodiment, Figure 2 As shown, the blade tip 420 of the fan blade 400 is arranged in the casing. Such arrangement is conducive to the cooperation between the blade tip 420 and the tail end 410 of the fan blade 400 to guide the gas in the casing into the guide ring part 120.

[0045] Specifically, in this embodiment, the fan blades 400 are arranged to be concave toward the interior of the housing, facing the pressure surface 401 of the air outlet mesh cover 130. This arrangement is beneficial for the fan blades 400 to guide the airflow to be discharged forward.

[0046] Specifically, in this embodiment, the front panel is a sheet metal component, and the panel portion 110, the air guide ring portion 120, and the air outlet mesh portion 130 are manufactured through integrated stamping and bending processes, resulting in a relatively high structural strength of the sheet metal component. Optionally, in other embodiments of the present application, the front panel can also be a plastic component, and the panel portion 110, the air guide ring portion 120, and the air outlet mesh portion 130 can be integrally formed through injection molding or other processes. In this case, the front panel is relatively lightweight.

[0047] Specifically, in this embodiment, Figure 2 As shown, the air inlet end of the guide ring portion 120 forms an arc transition with the panel portion 110. In this configuration, the air inlet and air inlet angle of the guide ring portion 120 are both relatively large, and the wind resistance of the arc transition portion is relatively small, which facilitates the smooth entry of air from the air conditioner outdoor unit into the guide ring portion 120.

[0048] This embodiment also provides an air conditioner, which includes the outdoor unit described above and an indoor unit, wherein the outdoor unit and the indoor unit are connected via a refrigerant pipe. This air conditioner has all the advantages of the outdoor unit described above, which will not be described in detail here.

[0049] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An outdoor unit, characterized in that: The invention comprises a casing and a fan (200) arranged in the casing, wherein the casing comprises a front panel, the front panel comprises a panel portion (110), a guide ring portion (120) and an air outlet mesh cover portion (130), the three being arranged in an integrated manner, and the guide ring portion (120) protrudes outward from the panel portion (110), and the air outlet mesh cover portion (130) is arranged at the air outlet end of the guide ring portion (120); The output shaft of the fan (200) is coaxially fixed with a hub (300), and the hub (300) is fixedly mounted with a fan blade (400), and the tail end (410) of the fan blade (400) is arranged in the guide ring portion (120), and the ratio of the distance X between the tail end (410) and the outer side surface of the panel portion (110) to the protruding length H of the guide ring portion (120) relative to the outer side surface of the panel portion (110) is in the range of 0.31 to 0.89, or the ratio of the distance X between the tail end (410) and the outer side surface of the panel portion (110) to the distance E between the tail end (410) and the air outlet mesh cover portion (130) is in the range of 0.85 to 2.

38.

2. The outdoor unit according to claim 1, wherein: The distance X between the tail wing end (410) and the outer side surface of the panel portion (110) is 24 mm to 38 mm.

3. The outdoor unit according to claim 2, characterized in that: The protruding length H of the guide ring portion (120) relative to the outer side surface of the panel portion (110) is 43 mm to 76 mm.

4. The outdoor unit according to claim 3, characterized in that: The distance E between the tail wing end (410) and the air outlet mesh cover portion (130) is 16 mm to 28 mm.

5. The outdoor unit according to claim 4, characterized in that: The distance X between the tail wing end (410) and the outer side surface of the panel portion (110) is 30 mm, the protruding length H of the guide ring portion (120) relative to the outer side surface of the panel portion (110) is 55 mm, and the distance E between the tail wing end (410) and the air outlet mesh cover portion (130) is 20 mm.

6. The outdoor unit according to any one of claims 1 to 5, characterized in that: The ratio of the distance D between the tail wing end (410) and the inner side surface of the guide ring portion (120) to the inner diameter of the guide ring portion (120) is in the range of 0.01 to 0.

07.

7. The outdoor unit according to claim 6, characterized in that: The distance D between the tail wing end (410) and the inner side surface of the guide ring portion (120) is 3 mm to 15 mm.

8. The outdoor unit according to claim 7, characterized in that: The distance D between the tail wing end (410) and the inner side surface of the guide ring portion (120) is 8 mm.

9. The outdoor unit according to any one of claims 1 to 5, characterized in that: The distance B between the wheel hub (300) and the air outlet mesh cover (130) is 49 mm; The length L of the hub (300) within the guide ring portion (120) is 1 mm, or the ratio of the length of the portion of the hub (300) within the guide ring portion (120) to the length of the guide ring portion (120) is 1 / 55.

10. The outdoor unit according to any one of claims 1 to 5, characterized in that: The fan blade (400) is arranged to be concave inwardly of the housing, with the pressure surface (401) facing the air outlet mesh cover (130).

11. The outdoor unit according to any one of claims 1 to 5, characterized in that: The front panel is a sheet metal part, and the panel portion (110), the guide ring portion (120) and the air outlet mesh cover portion (130) are integrally stamped; Alternatively, the front panel is a plastic part, and the panel portion (110), the guide ring portion (120) and the air outlet mesh cover portion (130) are integrally formed.

12. The outdoor unit according to claim 11, wherein: The air inlet end of the guide ring portion (120) transitions to the panel portion (110) in an arc shape.

13. An air conditioner, characterized in that: It comprises the outdoor unit according to any one of claims 1 to 12, and also comprises an indoor unit, wherein the outdoor unit is connected to the indoor unit via a refrigerant pipe.

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