Air conditioner outdoor unit

Abstract

The utility model discloses an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The outdoor unit of the air conditioner comprises a machine shell, a fan cavity and an air inlet are formed in the machine shell; the outdoor heat exchanger and the outdoor fan are arranged in the fan cavity; the chassis comprises a bearing part, a bearing part and a supporting part, the drainage part is arranged on the side, away from the air inlet, of the bearing part, and the drainage part is divided into a first area close to the bearing part and a second area away from the bearing part. The part, close to the air inlet, of the bottom of the outdoor heat exchanger is supported by the bearing part, and the other part is located above the first area. The outdoor heat exchanger further comprises a water baffle and first drainage holes formed in the bottom of the drainage part, the water baffle is arranged between the outdoor heat exchanger and the drainage part and at least covers the part of the second area so as to shield the first drainage holes, prevent condensate water from being reversely sucked by negative pressure generated by the outdoor fan when the condensate water is drained through the first drainage holes and prevent the condensate water from accumulating on the outdoor fan. And the problem that dynamic balance is damaged due to freezing of the outdoor fan in a low-temperature environment is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning technical field especially relates to a kind of air conditioner outdoor unit. BACKGROUND

[0002] Air conditioner outdoor unit is usually installed in outdoor, for heat exchange with outdoor environment. Air conditioner outdoor unit includes shell, shell inside is provided with outdoor heat exchanger and outdoor fan. In winter heating operation, outdoor heat exchanger is condensed to form condensate water in working process in air constantly, condensate water will drop to the chassis of shell under the action of gravity, if not in time to drain away, in lower external environment, accumulated water can freeze into ice, this can make outdoor heat exchanger enter frosting, ice state, seriously affect the heat exchange effect of outdoor heat exchanger.

[0003] In related art, drainage structure is usually arranged below or inside of outdoor heat exchanger on chassis, and the drainage structure includes drainage groove and drainage hole, the drainage groove collects condensate water generated by outdoor heat exchanger, and the condensate water flows out of the chassis through the drainage hole.

[0004] In large-capacity outdoor unit, outdoor fan usually adopts large air volume axial fan, and the negative pressure in the air conditioner outdoor unit is increased when the outdoor fan works, and the condensate water flowing into the drainage groove through the drainage hole is sucked back into the air conditioner outdoor unit by negative pressure, causing water on the surface of the fan, which will condense into ice at low temperature, destroy the dynamic balance of the fan, and cause frame vibration, and even cause pipeline vibration exceeding the standard and stress fatigue pipeline cracks, affecting the safety and reliability of air conditioning system. UTILITARY MODEL CONTENTS

[0005] The utility model aims at at least one of the technical problems in the related art to some extent. To this end,

[0006] According to the embodiments of the present disclosure, an air conditioner outdoor unit is provided, which comprises:

[0007] Shell, which is formed with fan cavity, the shell includes air inlet and air outlet communicated with the fan cavity; the shell has a chassis; the chassis includes:

[0008] Bearing part, close to the air inlet;

[0009] Drainage part, arranged on the side of the bearing part away from the air inlet, the drainage part is formed by the downward concave part of the chassis, and the drainage part is divided into first area close to the bearing part and second area away from the bearing part;

[0010] An outdoor heat exchanger is arranged in the fan cavity to exchange heat with air in the casing, a portion of the bottom of the outdoor heat exchanger close to the air inlet is supported by the bearing part, and a portion of the bottom of the outdoor heat exchanger away from the air inlet is located above the first area;

[0011] An outdoor fan is arranged between the outdoor heat exchanger and the air outlet;

[0012] A plurality of first drainage holes are arranged on the bottom of the drainage part in the extension direction of the drainage part;

[0013] A water baffle is arranged between the outdoor heat exchanger and the drainage part and covers at least a portion of the second area to shield a plurality of the first drainage holes, and the water baffle is provided with a communication part in communication with the drainage part to drain condensate water on the outdoor heat exchanger to the drainage part.

[0014] In the above technical solution, the following advantages or beneficial effects are achieved: the first drainage holes are shielded by the water baffle, so that the condensate water is prevented from being sucked back by negative pressure during the discharge of the condensate water through the first drainage holes under the negative pressure generated when the outdoor fan is working, the condensate water is prevented from accumulating on the outdoor fan, adverse problems caused by the icing of the outdoor fan to destroy the dynamic balance in a low-temperature environment are effectively avoided, and the service life of the outdoor unit of the air conditioner is prolonged. At the same time, the communication part is arranged to ensure that the condensate water generated by the outdoor heat exchanger flows into the drainage part to realize the drainage function and avoid the icing of the bottom plate.

[0015] According to embodiments of the present disclosure, the communication part comprises:

[0016] At least one notch is formed in the edge of the water baffle close to the bearing part and projects on the surface of the water baffle, and the notch coincides with a portion of the drainage part.

[0017] In the above technical solution, the following advantages or beneficial effects are achieved: the notch is located below the outdoor heat exchanger, so that the condensate water and defrosting water generated on the outdoor heat exchanger can flow into the drainage part through the at least one notch, and the condensate water is prevented from icing on the bottom of the outdoor heat exchanger in a low-temperature environment.

[0018] According to embodiments of the present disclosure, the bearing part is provided with a plurality of extension parts extending toward the drainage part, and the water baffle abuts against the extension parts;

[0019] In the extension direction of the drainage part, the notch is located between the extension parts, and the first drainage holes are located on a portion of the drainage part on one side of the extension parts.

[0020] The multiple extension portions support the outdoor heat exchanger, can reduce the direct contact area between the bottom plate and the outdoor heat exchanger, can reduce the possibility of condensate water stagnating at the extension portions, and can promote the condensate water to flow into the drainage portion through the interval space between the extension portions, thereby improving the drainage performance.

[0021] According to an embodiment of the present disclosure, the communication portion comprises multiple through zones penetrating the baffle in a thickness direction of the baffle;

[0022] In the extension direction of the drainage portion, a projection of the through zone on the drainage portion is staggered with the first drainage hole.

[0023] In the above technical solution, the following advantages or beneficial effects are achieved: by arranging the through zone, the condensate water on the outdoor heat exchanger can flow into the drainage portion more quickly, effectively preventing the condensate water from accumulating on the baffle and reducing the risk of icing in winter.

[0024] According to an embodiment of the present disclosure, the through zone comprises multiple second drainage holes arranged at intervals, the second drainage holes are in a strip shape, and the length extension direction of the second drainage holes is non-perpendicular to the thickness direction of the outdoor heat exchanger.

[0025] In the above technical solution, the following advantages or beneficial effects are achieved: the strip-shaped hole design can increase the cross-sectional area of the drainage, allow the condensate water to flow into the drainage portion more quickly, reduce the accumulation of water on the baffle, and avoid the influence of icing on the heat exchange effect of the outdoor heat exchanger. At the same time, the second drainage hole is arranged obliquely, which can effectively ensure the structural strength of the baffle and can avoid the condensate water being sucked into the outdoor fan through the second drainage hole during the dripping process through the first drainage hole.

[0026] According to an embodiment of the present disclosure, a projection of the second drainage hole on the surface of the baffle is located in the first area, and another part of the second drainage hole is located in the second area.

[0027] In the above technical solution, the following advantages or beneficial effects are achieved: this arrangement allows the condensate water generated on the outdoor heat exchanger to flow into the drainage more quickly.

[0028] According to an embodiment of the present disclosure, the thickness of the baffle is a, a≥0.8mm, and a≤1.2mm.

[0029] In the above technical solution, the following advantages or beneficial effects are achieved: by reasonably setting the thickness size of the baffle, the structural strength and stability of the baffle are ensured, and the problem of poor installation stability of the outdoor heat exchanger caused by a large gap at the bottom end of the outdoor heat exchanger is avoided.

[0030] According to the embodiments of the present disclosure, the water baffle is screwed to the bottom plate at one end away from the air inlet; and / or, a flow guide surface is arranged between the bearing part and the drainage part, so as to guide the flow to the drainage part.

[0031] The water baffle is fixed to the bottom plate by screwing, which not only improves the installation efficiency of the water baffle, but also ensures the connection strength between the two, so that the water baffle is not easy to loosen. The flow guide surface can guide the condensate water to flow to the drainage part, which is beneficial to improve the drainage performance of the bottom plate and ensure the working performance of the outdoor heat exchanger.

[0032] According to the embodiments of the present disclosure, the flow guide surface is an inclined surface or an arc surface.

[0033] The inclined surface or arc surface design can naturally guide the condensate water to flow along the surface, avoid water droplets to stay, and ensure that the condensate water quickly flows to the drainage part through the flow guide surface, reducing the water accumulation phenomenon.

[0034] According to the embodiments of the present disclosure, an air conditioner outdoor unit is also provided, which comprises:

[0035] A casing is formed with a fan cavity, and the casing comprises an air inlet and an air outlet which communicate with the fan cavity; the casing has a bottom plate, and the bottom plate comprises:

[0036] A bearing part is arranged near the air inlet;

[0037] A drainage part is arranged on the side of the bearing part away from the air inlet, and the drainage part is recessed downward relative to the bearing part; the drainage part is divided into a first region near the bearing part and a second region away from the bearing part;

[0038] An outdoor heat exchanger is arranged in the fan cavity to exchange heat with the air in the casing; the part of the bottom of the outdoor heat exchanger near the air inlet is supported by the bearing part, and the part of the bottom of the outdoor heat exchanger away from the air inlet is located above the first region;

[0039] An outdoor fan is arranged between the outdoor heat exchanger and the air outlet;

[0040] A plurality of first drainage holes are arranged at the bottom of the drainage part in the extension direction of the drainage part;

[0041] A water baffle is arranged between the outdoor heat exchanger and the drainage portion and covers at least part of the second area, and the water baffle is provided with a communication portion in communication with the drainage portion to drain the condensed water on the outdoor heat exchanger to the drainage portion, and the water baffle is configured to block the condensed water flowing out of the first drainage hole from flowing to the air outlet side when driven by the outdoor fan.

[0042] The above technical solution has the following advantages or beneficial effects: by arranging the water baffle to shield the first drainage hole, the condensed water in the drainage portion can be prevented from being sucked back into the fan cavity during the discharge process of the first drainage hole under the negative pressure condition generated when the outdoor fan is working, the accumulation of condensed water on the outdoor fan is prevented, the adverse problems caused by the freezing of the outdoor fan to destroy the dynamic balance in a low-temperature environment are effectively avoided, and the service life of the air conditioner outdoor unit is prolonged. At the same time, by arranging the communication portion, the condensed water generated by the outdoor heat exchanger can be ensured to flow into the drainage portion, the drainage function is realized, and the problem of freezing of the chassis is avoided.

[0043] According to an embodiment of the present disclosure, the drainage portion comprises:

[0044] A first drainage portion extends along the length direction of the chassis;

[0045] A second drainage portion is connected to the end of the first drainage portion, and the second drainage portion extends along the width direction of the chassis, and the first drainage hole is arranged on the bottom of the second drainage portion and the first drainage portion;

[0046] The water baffle comprises:

[0047] A first plate portion covers at least part of the first drainage portion close to the second drainage portion to shield the first drainage hole on the first drainage portion;

[0048] A second plate portion is connected to the first plate portion and covers at least part of the second drainage portion close to the first drainage portion to shield the first drainage hole on the second drainage portion.

[0049] The above technical solution has the following advantages or beneficial effects: the shape of the water baffle corresponds to the shape of the drainage portion, facilitating the installation of the water baffle and ensuring better cooperation; at the same time, the water baffle can be designed according to the position and number of the first drainage hole to ensure that the water baffle effectively shields all the first drainage holes and prevents the condensed water from being sucked back under negative pressure. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 、 Figure 2 is a structural schematic diagram of an air conditioner outdoor unit in different viewing angles in an embodiment of the present disclosure;

[0051] Figure 3 is a structural schematic diagram of an air conditioner outdoor unit according to yet another embodiment of the present disclosure;

[0052] Figure 4 is a structural schematic diagram of an air conditioner outdoor unit according to yet another embodiment of the present disclosure, in which an air outlet grille is omitted;

[0053] Figure 5 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0054] Figure 6 is a structural schematic diagram of a bottom plate according to an embodiment of the present disclosure;

[0055] Figure 7 is a structural schematic diagram of a bearing portion bearing an outdoor heat exchanger according to an embodiment of the present disclosure;

[0056] Figure 8 is a structural schematic diagram of a bearing portion bearing an outdoor heat exchanger according to an embodiment of the present disclosure;

[0057] Figure 9 is a top view of Figure 7 ;

[0058] Figure 10 is a connection schematic diagram of a water baffle and a bottom plate according to an embodiment of the present disclosure;

[0059] Figure 11 is a structural schematic diagram of a water baffle according to an embodiment of the present disclosure;

[0060] Figure 12 is a partial sectional view of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0061] Figure 13 is a partial structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0062] Figure 14 is a top view of Figure 5 ;

[0063] Figure 15 is a partial structural diagram of a bottom plate according to an embodiment of the present disclosure;

[0064] Figure 16 is a partial exploded view of an internal structure of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0065] Figure 17 is a connection schematic diagram of a water baffle and a bottom plate according to another embodiment of the present disclosure;

[0066] Figure 18 is a wind speed simulation diagram of a water baffle adding a front first drain hole according to an embodiment of the present disclosure;

[0067] Figure 19 is a wind speed simulation diagram of the first drain hole after the water baffle is added according to an embodiment of the present disclosure;

[0068] Figure 20 Figure 19 is a schematic diagram of the cross-sectional airflow velocity after the water baffle is connected to the chassis according to an embodiment of the present disclosure.

[0069] In the above figures: air conditioner outdoor unit 10; casing 1; air inlet 11; air outlet 12; air outlet grille 13; chassis 14; bearing part 141; drainage part 142; first drain hole 143; mounting hole 145; extension part 146; outdoor heat exchanger 2; outdoor fan 3; partition 4; compressor 5; water baffle 6; connecting hole 61; second drain hole 7; flow guide surface 8; notch 9. DETAILED DESCRIPTION

[0070] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is described and explained below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0071] Obviously, the drawings described below are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without creative labor on the basis of these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the present application.

[0072] In the present application, "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0073] The terms "connected", "coupled", and "in communication with" used in the present application are not limited to a physical or mechanical connection, but can include an electrical connection, whether direct or indirect. The term "a plurality" means two or more. The term "and / or" describes associated objects in association relationship, which means that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects. The terms "first", "second", "third", and the like used in the present application are only to distinguish similar objects, and do not represent a specific order for the objects.

[0074] The utility model provides a kind of air conditioner outdoor unit 10, below referring to Figures 1-20 The air conditioner outdoor unit 10 provided by the present application is described. Among them, the air conditioner outdoor unit 10 is used as the outdoor unit of air conditioner, and is usually arranged outdoors for heat exchange with outdoor environment.

[0075] Referring to Figure 1 , Figure 3 In one illustrative embodiment of the air conditioner outdoor unit 10 provided by the utility model, the air conditioner outdoor unit 10 includes a casing 1, which is installed outdoors and forms the overall appearance of the air conditioner outdoor unit 10.

[0076] The casing 1 defines an accommodation space inside, which is used to install and fix various components of the air conditioner outdoor unit 10. Among them, the casing 1 has a top end and a bottom end, and the top end and the bottom end are two ends of the casing 1 arranged in vertical direction.

[0077] Referring to Figure 2 , the casing 1 can include an air inlet 11. The air inlet 11 is in communication with the accommodation space, and the air inlet 11 serves as the entrance for external air to flow into the casing 1.

[0078] The casing 1 can include an air outlet 12. The air outlet 12 is in communication with the accommodation space, and the air outlet 12 serves as the exit for air after heat exchange in the casing 1 to flow out.

[0079] The indoor air outside the casing 1 enters the inside of the casing 1 through the air inlet 11 and is finally discharged to the outside through the air outlet 12.

[0080] In some embodiments of the present application, the air inlet 11 can be arranged on the back side of the casing 1, and the air outlet 12 is located on the front side of the casing 1. In this embodiment, the air outlet 12 is arranged on the front panel of the casing 1.

[0081] Of course, in other embodiments, the air inlet 11 can also be arranged on the side of the casing 1. Among them, the air inlet 11 can be arranged only on any one side of the casing 1 or on both sides of the casing 1.

[0082] In some embodiments of the present application, with reference to Figure 1 , Figure 3 The air conditioner outdoor unit 10 can include an air outlet grille 13 connected to the casing 1 and arranged at the air outlet 12 to serve the purposes of air flow guiding and safety protection.

[0083] It should be noted that the directions described herein are based on the direction of the user facing the air conditioner outdoor unit 10, wherein the side of the air conditioner outdoor unit 10 facing the user during use is defined as the front side, and the opposite side is the back side, and the left and right sides are distinguished based on the direction of the user facing the air conditioner outdoor unit 10.

[0084] With reference to Figure 5 The air conditioner outdoor unit 10 can include a partition 4.

[0085] The partition 4 is arranged in the casing 1 in the vertical direction to divide the accommodation space in the casing 1 into a fan chamber and a compressor chamber. In this embodiment, the fan chamber and the compressor chamber are located on the left side and the right side of the casing 1, respectively.

[0086] The air conditioner outdoor unit 10 can include an outdoor heat exchanger 2 arranged in the fan chamber to exchange heat with the air in the casing 1. The outdoor heat exchanger 2 can be mounted on the inner side of the air inlet 11.

[0087] The outdoor heat exchanger 2 can be a plate heat exchanger. In order to increase the heat exchange area of the outdoor heat exchanger 2 while minimizing the size of the air conditioner outdoor unit 10, in this embodiment, the outdoor heat exchanger 2 can be arranged as an L-shaped heat exchanger.

[0088] In this embodiment, when the outdoor heat exchanger 2 is an L-shaped heat exchanger, the outdoor heat exchanger 2 is arranged corresponding to the air inlet side. That is, with reference to Figure 2 A portion of the outdoor heat exchanger 2 corresponds to the air inlet 11 on the back side of the casing 1, and another portion of the outdoor heat exchanger 2 corresponds to the air inlet 11 on the side of the casing 1.

[0089] In some embodiments of the present application, the air conditioner outdoor unit 10 can include an outdoor fan 3 arranged in the fan chamber. The outdoor fan 3 can be an axial fan.

[0090] With reference to Figure 4 The outdoor fan 3 can be arranged towards the air outlet 12, that is, the outdoor fan 3 is arranged on the side of the outdoor heat exchanger 2 away from the air inlet 11.

[0091] In this embodiment, the outdoor fan 3 is installed between the outdoor heat exchanger 2 and the air outlet 12. Under the action of the outdoor fan 3, outdoor air enters the accommodation space through the air inlet 11, exchanges heat with the outdoor heat exchanger 2 in the accommodation space, and the exchanged outdoor air is discharged from the air outlet 12 of the casing 1 under the drive of the outdoor fan 3.

[0092] The outdoor fan 3 can include two axial flow fans spaced apart in the vertical direction. With reference to Figure 4 In this embodiment, the casing 1 is provided with air outlets 12 corresponding to the two axial flow fans.

[0093] The outdoor fan 3 with double axial flow fans can provide higher air volume and more uniform air distribution, improve heat exchange efficiency, and ensure sufficient air flow for more effective heat exchange.

[0094] With reference to Figure 5 The air conditioner outdoor unit 10 can include a compressor 5 installed on the bottom plate and arranged in the compressor cavity.

[0095] The air conditioner can include a throttling device for throttling. The throttling device can be arranged in the air conditioner indoor unit or the air conditioner outdoor unit 10.

[0096] The air conditioner can include a refrigerant circuit. The air conditioner is connected to the air conditioner indoor unit and the air conditioner outdoor unit 10 by connecting pipes to form a refrigerant circuit for circulating refrigerant. The air conditioner circulates the refrigerant through the compressor 5, the condenser, the throttling device and the evaporator in sequence through the refrigerant circuit, and can perform indoor cooling or heating.

[0097] The air conditioner can include an indoor unit, i.e. an air conditioner indoor unit, which includes an indoor heat exchanger.

[0098] The indoor heat exchanger and the outdoor heat exchanger 2 serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in heating mode, and when the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in cooling mode.

[0099] The refrigeration cycle and the heating cycle include a compression process, a condensation process, an expansion process and an evaporation process, which provide cold or heat to the indoor space by heat absorption and heat release of the refrigerant, to achieve temperature regulation of the indoor space.

[0100] The compressor 5 compresses the refrigerant gas into a high-temperature and high-pressure state and discharges the compressed refrigerant gas, which flows into the condenser.

[0101] The condenser condenses the compressed high-temperature and high-pressure gaseous refrigerant into liquid refrigerant, and heat is released to the surrounding environment through the condensation process.

[0102] The liquid refrigerant flowing out of the condenser enters the throttling device, which expands the high-temperature and high-pressure liquid refrigerant condensed by the condenser into low-pressure liquid refrigerant.

[0103] The low-pressure liquid refrigerant flowing out of the throttling device enters the evaporator. The liquid refrigerant absorbs heat and evaporates into low-temperature and low-pressure refrigerant gas when flowing through the evaporator. The refrigerant gas in the low-temperature and low-pressure state returns to the compressor 5.

[0104] Among them, the evaporator can achieve refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the above entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0105] Reference Figure 6 The chassis 1 can include a base plate 14. The base plate 14 serves as the basis of the air conditioner outdoor unit 10, and is used to provide mounting positions for the compressor 5, the outdoor heat exchanger 2, the outdoor fan 3, and the like. Among them, the base plate 14 forms the bottom end of the chassis 1.

[0106] Specifically, continuing to refer to Figure 6 The base plate 14 can include a bearing portion 141. The bearing portion 141 is arranged close to the inlet and outlet 1, and is used to bear the outdoor heat exchanger 2.

[0107] Among them, the bearing portion 141 is adapted to abut against part of the bottom end of the outdoor heat exchanger 2. The bearing portion 141 has high structural strength, and can more reliably support the outdoor heat exchanger 2, and the installation structure is more stable and firm.

[0108] When the air conditioner is running for heating in winter, the outdoor heat exchanger 2 will continuously condense the moisture in the air during the working process, and the condensed water will continuously drip onto the base plate 14 and the bearing portion 141 under the action of gravity.

[0109] In order to avoid the condensed water on the base plate from icing, in some embodiments of the present application, the base plate 14 can include a drainage portion 142. The drainage portion 142 is arranged on the side of the bearing portion 141 away from the air inlet 11.

[0110] Specifically, in the present embodiment, the drainage portion 142 is formed by part of the base plate 14 being recessed downward. Continuing to refer to Figure 6 The drainage portion 142 is recessed downward relative to the bearing portion 141, that is, the drainage portion 142 has a groove structure, which is used to collect the condensed water and defrosting water generated on the outdoor heat exchanger 2.

[0111] The drainage portion 142 is divided into a first area close to the bearing portion 142 and a second area away from the bearing portion 141. Among them, the part of the bottom of the outdoor heat exchanger 2 close to the air inlet 11 is supported by the bearing portion 141, and the part of the bottom of the outdoor heat exchanger 2 away from the air inlet 11 is located above the first area.

[0112] In some embodiments of the present application, the outdoor unit 10 can include a first drain hole 143 disposed at the bottom of the drain portion 142 to drain the condensed water in the drain portion 142 out of the chassis 14. The first drain hole 143 is configured with a plurality of holes.

[0113] With reference to Figure 6 , the plurality of first drain holes 143 are arranged at intervals along the extension direction of the drain portion 142, which can effectively avoid the influence of the large opening on the strength of the chassis. The plurality of first drain holes 143 are arranged at different positions of the drain portion 142, which is beneficial to accelerate the drainage and avoid water accumulation in the chassis 14.

[0114] In the present embodiment, the arrangement of the drain portion 142 can facilitate the flow of the condensed water and defrosting water on the surface of the outdoor heat exchanger 2 to the chassis 14 and then into the chassis 14, and further drain out of the chassis 14 through the first drain hole 143, which can ensure the working performance of the outdoor heat exchanger 2 as an evaporator.

[0115] It can be understood that the extension direction of the drain portion 142 is the extension direction of the outdoor heat exchanger 2. The arrangement position of the drain portion 142 is determined by the mounting position of the outdoor heat exchanger 2 on the chassis 14 and the shape of the outdoor heat exchanger 2 itself. The condensed water falling from the outdoor heat exchanger 2 can fall into the drain portion and be drained through the first drain hole 143, which largely avoids the problem of water accumulation on the chassis.

[0116] In the present embodiment, part of the drain portion 142 is located within the projection of the outdoor heat exchanger 2 in the vertical direction. That is, with reference to Figures 7-9 , part of the drain portion 142 can be located directly below the outdoor heat exchanger 2, which can facilitate the direct flow of the condensed water into the drain portion 142.

[0117] In the related art, the outdoor fan 3 is usually an axial fan, which can cause the internal negative pressure of the casing 1 to rise when working. The condensed water and defrosting water generated by the outdoor heat exchanger 2 flow into the drain portion 142, and the condensed water and defrosting water can be sucked back by the negative pressure during the dripping process through the first drain hole 143, causing water on the surface of the outdoor fan 3 and the air outlet grille 13, which can condense into ice at low temperature, destroy the dynamic balance of the outdoor fan 3, and thus cause the frame to vibrate, and even cause the pipeline vibration to exceed the standard and cause stress fatigue cracks in the pipeline.

[0118] To solve the above technical problems, in some embodiments of the present application, the outdoor unit 10 can include a water baffle 6. With reference to Figure 10 , the water baffle 6 is arranged above the drain portion 142 to shield the first drain hole 143 in the drain portion 142.

[0119] In this embodiment, by setting the water baffle 6, the plurality of first drain holes 143 on the drain part 142 can be shielded, so that the condensed water in the drain part 142 can be prevented from being sucked back by negative pressure during the drainage process under the negative pressure condition generated when the outdoor fan 3 is working, and the condensed water accumulated on the outdoor fan 3 is prevented, thereby effectively avoiding the problem that the outdoor fan 3 is damaged due to icing in a low-temperature environment, and the service life of the air conditioner outdoor unit 10 is prolonged.

[0120] Among them, the water baffle 6 can shield all the number of first drain holes 143 in the drain part 142.

[0121] Specifically, the water baffle 6 is arranged between the outdoor heat exchanger 2 and the drain part 142, and is at least arranged on the second region, so as to shield the plurality of first drain holes.

[0122] The water baffle 6 is provided with a communication part communicated with the drain part 142, so as to drain the condensed water and defrosting water on the outdoor heat exchanger 2 to the drain part 142.

[0123] By setting the communication part, the condensed water and defrosting water generated by the outdoor heat exchanger 2 can flow into the drain part 142, the drainage function is realized, and the icing problem of the bottom plate 14 is avoided.

[0124] Reference Figures 18-20 , the wind speed simulation diagram of the first drain hole 143 before and after the water baffle 6 is added, and the cross-sectional airflow velocity diagram of the bottom plate 14 after the water baffle 6 is connected. Through simulation, it can be obtained that the wind speed at the first drain hole 143 is reduced from 6m / s before the water baffle 6 is added to 3m / s, about 40% or so, which can effectively reduce the wind speed at the first drain hole 143, and avoid that the condensed water is sucked back into the air conditioner outdoor unit during the dripping process through the first drain hole 143.

[0125] In other embodiments, the water baffle 6 is configured to block the condensed water flowing out of the first drain hole 143 from flowing to the air outlet side when driven by the outdoor fan 3, effectively preventing the condensed water from accumulating on the outdoor fan 3 and the air outlet grille 13, and avoiding the problem that the outdoor fan 3 is damaged due to icing in a low-temperature environment.

[0126] In some embodiments of the present application, the communication part can include at least one notch 9. The at least one notch 9 is formed on the edge of the water baffle 6 close to the bearing part 141. Among them, the notch 9 is partially overlapped with the drain part 142 in the projection on the surface of the water baffle 6.

[0127] Reference Figure 10 In this embodiment, the notch 9 is located below the outdoor heat exchanger 2 and communicated with the drain part 142, so that the condensed water and defrosting water generated on the outdoor heat exchanger 2 can flow into the drain part 142 through the plurality of notches 9.

[0128] By setting the plurality of notches 9, the condensed water and defrosting water generated by the outdoor heat exchanger 2 can flow into the drainage portion 142 and flow out of the chassis 14 through the plurality of first drainage holes 143, so as to realize the drainage function and avoid the problem of ice formation caused by the water accumulation in the chassis 14 in a low-temperature environment.

[0129] In some embodiments of the present application, the bearing portion 141 is provided with a plurality of extension portions 146 extending in the direction of the drainage portion 141. The water baffle 6 abuts against the extension portion 146.

[0130] Specifically, the drainage portion 142 is recessed downward relative to the bearing portion 141, and the plurality of extension portions 146 are arranged at intervals along the extension direction of the drainage portion 142, so as to discontinuously support the outdoor heat exchanger 2.

[0131] In the present embodiment, the chassis 14 adopts the bearing portion 141 and the plurality of extension portions 146, which can effectively support the outdoor heat exchanger 2 while reducing the direct contact area between the chassis 14 and the outdoor heat exchanger 2, and can reduce the possibility of the condensed water stagnating at the extension portion 146.

[0132] In the extension direction of the drainage portion 141, the notch 9 is located between the extension portions 146, and the first drainage hole 143 is located on the part of the drainage portion 142 on one side of the extension portion 146.

[0133] In the present embodiment, the notch 9 is located between the extension portions 146, so as to utilize the interval space between the extension portions and the notch 9 to promote the condensed water to flow into the drainage portion 142. The first drainage hole 143 is located on one side of the extension portion 146, so that the condensed water flowing to one side of the extension portion 146 can quickly flow out of the chassis 14 through the first drainage hole 143, thereby improving the drainage performance.

[0134] In some embodiments of the present application, the communication portion can include a plurality of through zones. The plurality of through zones penetrate the water baffle 6 along the thickness direction of the water baffle 6. In the extension direction of the drainage portion 142, the through zones are arranged alternately with the first drainage holes 143.

[0135] It should be noted that the alternately arranged means that the plurality of through zones and the plurality of first drainage holes 143 are arranged at intervals in the extension direction of the drainage portion 142.

[0136] Reference Figure 12 The through zone includes a plurality of second drainage holes 7 arranged at intervals. The second drainage holes 7 are arranged penetratingly along the thickness direction of the water baffle 6, so as to communicate with the drainage portion 142.

[0137] In the embodiment, by staggering the through area provided with the plurality of second drain holes 7 and the first drain hole 143, the condensate water can be prevented from being sucked into the air conditioner outdoor unit 10 during the dripping process of the condensate water in the first drain hole 143. At the same time, by providing the second drain hole 7, the condensate water on the outdoor heat exchanger 2 can flow into the drain part 142 through the plurality of gaps 9 and the plurality of second drain holes 7, which effectively prevents the condensate water from accumulating on the water baffle 6 and reduces the risk of icing in a low-temperature environment.

[0138] In some embodiments of the present application, the second drain hole 7 is arranged in a strip shape.

[0139] In the embodiment, the strip-shaped hole design can increase the cross-sectional area of the drain, allowing the condensate water to flow into the drain part 142 more quickly, reducing the accumulation of water on the water baffle 6, and avoiding the icing affecting the heat exchange effect of the outdoor heat exchanger 2.

[0140] In some embodiments of the present application, the plurality of second drain holes 7 included in the through area are arranged side by side.

[0141] The plurality of strip-shaped holes arranged side by side can effectively disperse the water flow, making the condensate water more uniform during the process of flowing to the drain part 142, thereby improving the reliability of the air conditioner outdoor unit 10.

[0142] In order to further make the condensate water on the outdoor heat exchanger 2 flow into the drain part 142 more quickly, in some embodiments of the present application, a part of the second drain hole 7 is located in the first area and another part of the second drain hole 7 is located in the second area when projected on the surface of the water baffle 6.

[0143] Reference Figure 13 The second drain hole 7 extends to the bottom of the outdoor heat exchanger 2. That is, with reference to Figure 14 A part of the second drain hole 7 is located in the projection of the outdoor heat exchanger 2 in the vertical direction.

[0144] In some embodiments of the present application, the length extension direction of the second drain hole 7 is non-perpendicular to the thickness direction of the outdoor heat exchanger.

[0145] The above arrangement makes the second drain hole 7 between two adjacent first drain holes 143 arranged obliquely or horizontally, which can effectively ensure the structural strength of the water baffle 6, and at the same time can reduce the risk of the condensate water being sucked into the outdoor fan 3 through the second drain hole 7 during the dripping process of the condensate water through the first drain hole 143.

[0146] It can be understood that the inclination angles of the second drain holes 7 on different through areas can be the same or different.

[0147] In some embodiments of the present application, the thickness of the water baffle 6 is a. a≥0.8mm. a≤1.2mm.

[0148] By reasonably setting the thickness size of the water baffle 6, the structural strength and stability of the water baffle 6 can be ensured, and at the same time, the problem that the large gap at the bottom end of the outdoor heat exchanger 2 leads to poor installation stability of the outdoor heat exchanger 2 can be avoided.

[0149] The thickness a of the water baffle 6 cannot be too small, otherwise the structural strength of the water baffle 6 cannot be guaranteed, and the water baffle 6 is easy to be corroded and damaged by condensed water. In order to guarantee the structural strength of the water baffle 6, the thickness a of the water baffle 6 is set to be not less than a first parameter value. The first parameter value can be any value between 0.8mm and 0.95mm. In specific design, a suitable specific parameter is selected. For example, the first parameter value can be 0.8mm, which can avoid the water baffle 6 being too thin, so that the water baffle 6 has a certain structural strength.

[0150] The thickness a of the water baffle 6 cannot be too large, a part of the water baffle 6 is located between the bottom end of the outdoor heat exchanger 2 and the bearing part 141. If the thickness a is too large, the gap at the bottom end of the outdoor heat exchanger 2 is large, which not only affects the installation stability, but also may damage the outdoor heat exchanger 2 in use. In order to guarantee the outdoor heat exchanger 2, the thickness a of the water baffle 6 is set to be not greater than a second parameter value. The second parameter value can be any value between 1.05mm and 1.2mm. In specific design, a suitable specific parameter is selected. For example, the second parameter value can be 1.2mm, which can avoid the water baffle 6 being too thick, and is conducive to improving the safety performance of the outdoor heat exchanger 2.

[0151] In some embodiments of the present application, with reference to Figure 15 A flow guide surface 8 is arranged between the bearing part 141 and the drainage part 142, one end of the flow guide surface is connected with the bearing part, and the other end is connected with the bottom wall of the drainage part, for guiding flow to the drainage part 142.

[0152] In the embodiment, by arranging the flow guide surface 8, the condensed water can be guided to flow to the drainage part 142, which is conducive to improving the drainage performance of the chassis 14 and can guarantee the working performance of the outdoor heat exchanger 2 as an evaporator.

[0153] The flow guide surface 8 can be a slope or an arc surface.

[0154] The flow guide surface 8 designed as a slope or an arc surface can naturally guide the condensed water to flow along the surface, avoid water droplets to stay, ensure the condensed water to be quickly guided to the drainage part 142 through the flow guide surface 8, and reduce the water accumulation phenomenon.

[0155] In the embodiment, the guide surface 8 is a slope. The slope can accelerate the flow of water towards the drainage portion 142, facilitating the rapid drainage of condensed water.

[0156] In some embodiments of the present application, the water baffle 6 is screwed at one end away from the air inlet 11 on the chassis 14. By screwing the water baffle 6 on the chassis 14, the installation efficiency of the water baffle 6 is improved, the connection strength between the two is guaranteed, and the water baffle 6 is not prone to loosening.

[0157] In other embodiments, the water baffle 6 is welded or riveted at one end away from the air inlet 11 on the chassis 14.

[0158] In the embodiment, the water baffle 6 can be connected to the chassis 14 by screwing, i.e., the chassis 14 and the water baffle 6 are connected together mainly by screws, nuts and other fasteners, which has the advantages of convenient disassembly, strong carrying capacity and wide application range.

[0159] Specifically, referring to Figure 16 , a plurality of mounting holes 145 are provided on the chassis 14 away from the side of the bearing portion 141 of the drainage portion 142, and a plurality of connecting holes 61 are provided on the water baffle 6, which correspond one-to-one to the plurality of mounting holes 145 and realize the tight connection of the water baffle 6 and the chassis 14 through screws.

[0160] Referring to Figure 17 , another schematic embodiment of the air conditioner outdoor unit 10 provided by the utility model is different from the above-mentioned schematic embodiment in that:

[0161] The air conditioner outdoor unit 10 can include a water baffle 6. The water baffle 6 is at least covered on the part of the second area of the drainage portion 142, and one end of the water baffle 6 away from the outdoor fan 3 is located between the bearing portion 141 and the outdoor heat exchanger 2 to shield the first drainage hole 143.

[0162] The water baffle 6 is provided with a communication portion in communication with the drainage portion 142 to drain the condensed water on the outdoor heat exchanger 2 to the drainage portion 142.

[0163] The communication portion includes a plurality of through zones, which penetrate the water baffle 6 in the thickness direction of the water baffle 6, and the plurality of through zones are staggered with the plurality of first drainage holes 143.

[0164] In the embodiment, by shielding the plurality of first drainage holes 143 through the water baffle 6, the condensed water in the drainage portion 142 can be prevented from being sucked back into the fan cavity under negative pressure during the drainage process under the negative pressure condition generated when the outdoor fan 3 is working, the accumulation of condensed water on the outdoor fan 3 is prevented, the adverse problems caused by the icing of the outdoor fan 3 to destroy the dynamic balance in a low-temperature environment are effectively avoided, and the service life of the air conditioner outdoor unit 10 is prolonged.

[0165] Further, the through region is arranged directly on the baffle 6 to ensure that the condensate generated by the outdoor heat exchanger 2 can flow into the drainage portion 142 to realize the drainage function and avoid the problem of icing of the chassis 14, without the need to form the notch 9 by special-shaped arrangement of the end of the baffle 6 away from the outdoor fan 3, thereby improving the production and manufacturing efficiency of the baffle 6.

[0166] In some embodiments of the present application, the drainage portion 142 can include a first drainage portion. The first drainage portion extends along the length direction of the chassis 14.

[0167] The drainage portion 142 can include a second drainage portion. The second drainage portion is connected to the end of the first drainage portion, and the second drainage portion extends along the width direction of the chassis 14. The first drainage hole 143 is arranged at the bottom of the second drainage portion.

[0168] The baffle 6 can include a first plate portion. The first plate portion is arranged at least on the part of the first drainage portion close to the second drainage portion to shield the first drainage hole 143 on the first drainage portion.

[0169] The baffle 6 can include a second plate portion. The second plate portion is connected to the first plate portion and arranged at least on the part of the second drainage portion close to the first drainage portion to shield the first drainage hole 143 on the second drainage portion.

[0170] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some or all of the technical features. Such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0171] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. An air conditioner outdoor unit, characterized in that: include: a housing having a fan cavity formed therein, the housing including an air inlet and an air outlet communicating with the fan cavity; The housing has a chassis; the chassis includes: a bearing portion, close to the air inlet; a drainage portion, provided on a side of the carrying portion away from the air inlet, the drainage portion being formed by a downward depression of a portion of the chassis, the drainage portion being divided into a first area close to the carrying portion and a second area away from the carrying portion; an outdoor heat exchanger disposed in the fan cavity for exchanging heat with the air in the casing, wherein a portion of the bottom of the outdoor heat exchanger near the air inlet is supported by the bearing portion, and a portion of the bottom of the outdoor heat exchanger away from the air inlet is located above the first area; an outdoor fan, disposed between the outdoor heat exchanger and the air outlet; a plurality of first drainage holes, spaced apart and arranged at the bottom of the drainage portion along an extending direction of the drainage portion; A water baffle is provided between the outdoor heat exchanger and the drainage portion, and covers at least the portion located in the second area to shield the plurality of first drainage holes; a connecting portion connected to the drainage portion is provided on the water baffle to drain the condensed water on the outdoor heat exchanger to the drainage portion.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The communication portion includes: At least one notch is formed on an edge of the water retaining plate close to the bearing portion and is projected onto the plate surface of the water retaining plate, wherein the notch partially overlaps with the drainage portion.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The bearing portion is provided with a plurality of extension portions which are spaced apart and extend in the direction of the drainage portion, and the water retaining plate abuts against the extension portions; In the extension direction of the drainage portion, the notch is located between the extension portions, and the first drainage hole is located on a portion of the drainage portion on one side of the extension portion.

4. The air conditioner outdoor unit according to any one of claims 1 to 3, characterized in that: The communication portion includes a plurality of through-regions, and the through-regions penetrate the water retaining plate along the thickness direction of the water retaining plate; In the extension direction of the drainage portion, the through area and the first drainage hole are arranged alternately.

5. The air conditioner outdoor unit according to claim 4, characterized in that: The through area includes a plurality of second drainage holes arranged at intervals, the second drainage holes are in a strip shape, and the length extension direction of the second drainage holes is not perpendicular to the thickness direction of the outdoor heat exchanger.

6. The air conditioner outdoor unit according to claim 5, characterized in that: Projected on the surface of the water retaining plate, a portion of the second drainage hole is located in the first area, and another portion of the second drainage hole is located in the second area.

7. The air conditioner outdoor unit according to claim 1, characterized in that: The thickness of the water retaining plate is a, a≥0.8mm, a≤1.2mm.

8. The air conditioner outdoor unit according to claim 1, characterized in that: One end of the water baffle away from the air inlet is screwed onto the chassis; and / or a guide surface is provided between the bearing portion and the drainage portion for guiding the flow toward the drainage portion.

9. An air conditioner outdoor unit, characterized in that: include: a housing having a fan cavity formed therein, the housing including an air inlet and an air outlet communicating with the fan cavity; The housing has a chassis, and the chassis includes: a bearing portion, close to the air inlet; a drainage portion, provided on a side of the carrying portion away from the air inlet, the drainage portion being recessed downward relative to the carrying portion and divided into a first area close to the carrying portion and a second area away from the carrying portion; an outdoor heat exchanger disposed in the fan cavity for exchanging heat with the air in the casing, wherein a portion of the bottom of the outdoor heat exchanger near the air inlet is supported by the bearing portion, and a portion of the bottom of the outdoor heat exchanger away from the air inlet is located above the first area; an outdoor fan, disposed between the outdoor heat exchanger and the air outlet; a plurality of first drainage holes, spaced apart and arranged at the bottom of the drainage portion along an extending direction of the drainage portion; A water baffle is provided between the outdoor heat exchanger and the drainage portion and covers at least the portion located in the second area. The water baffle is provided with a connecting portion connected to the drainage portion to discharge the condensed water on the outdoor heat exchanger to the drainage portion. The water baffle is configured to prevent the condensed water flowing out of the first drainage hole from flowing toward the air outlet side when it is driven by the outdoor fan.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The drainage part includes: a first drainage portion extending along the length direction of the chassis; a second drainage portion connected to an end of the first drainage portion, the second drainage portion extending along the width direction of the chassis, and the first drainage hole being provided at the bottom of the second drainage portion and the first drainage portion; The water retaining plate comprises: a first plate portion, at least covering a portion of the first drainage portion close to the second drainage portion, for shielding the first drainage hole on the first drainage portion; The second plate portion is connected to the first plate portion and covers at least a portion of the second drainage portion close to the first drainage portion to shield the first drainage hole on the second drainage portion.

Images