Air conditioner outdoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioner outdoor unit which comprises an outdoor unit shell, a partition plate, a compressor, a fan and an electric control box. The electric control box body is arranged at the top of the partition plate, a circuit board is arranged in the electric control box body, the electric control box body comprises an electric control shell defining an electric control containing cavity, the electric control shell comprises an electric control side shell part and an electric control bottom shell part, and the electric control shell is provided with a heat dissipation air inlet and a heat dissipation air outlet which are used for forming a heat dissipation air path; the heat dissipation air inlet is formed in the portion, located in the press cavity, of the electric control bottom shell part, and the heat dissipation air outlet is formed in the portion, located in the fan cavity, of the electric control side shell part. In addition, a first air inlet located in the upper portion and a second air inlet located in the lower portion are formed in a first side shell of the outdoor unit shell. And meanwhile, the two air inlets with different upper and lower positions are formed for inducing air, so that the smoothness of an air inducing path is ensured. The utility model further discloses the air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, for example to an air conditioner outdoor unit and an air conditioner. BACKGROUND

[0002] The electric control box of the air conditioner outdoor unit is provided with a circuit board, and the circuit board is integrated with multiple power chips, so that when the air conditioner is running, especially in a high-temperature refrigeration mode, the heat flow of the circuit board is large and the heat is serious, and the circuit board needs to be cooled in time to ensure the normal and stable operation of the air conditioner.

[0003] The existing air conditioner outdoor unit has an air inlet opening on the shell, and external air is introduced into the shell of the air conditioner indoor unit through the air inlet opening to cool the circuit board.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The installation environment of the air conditioner outdoor unit is complex, and the air inlet opening provided on the air conditioner outdoor unit is easily blocked by debris, affecting the cooling effect of the circuit board.

[0006] It should be noted that the information disclosed in the above BACKGROUND section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Invention content

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor does it determine the key / important components or delineate the protection scope of these embodiments, but serves as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide an air conditioner outdoor unit, comprising: an outdoor unit shell enclosing an internal cavity; a partition plate dividing the internal cavity into a compressor cavity and a fan cavity, the outdoor unit shell comprising a first side shell enclosing the compressor cavity; a compressor arranged in the compressor cavity; a fan arranged in the fan cavity; and an electric control box arranged on the top of the partition plate and internally provided with a circuit board, the electric control box comprising an electric control shell enclosing an electric control cavity, the electric control shell comprising an electric control side shell portion and an electric control bottom shell portion, the electric control shell being provided with a heat dissipation air inlet and a heat dissipation air outlet for forming a heat dissipation air path, and the heat dissipation air inlet is arranged on the part of the electric control bottom shell portion located in the compressor cavity, and the heat dissipation air outlet is arranged on the part of the electric control side shell portion located in the fan cavity, wherein the first side shell of the outdoor unit shell is provided with a first air inlet at the upper portion and a second air inlet at the lower portion.

[0009] In some optional embodiments, the setting height of the first air inlet is higher than the setting height of the compressor.

[0010] In some optional embodiments, the first air inlet is arranged at a handle of the outdoor unit of the air conditioner.

[0011] In some optional embodiments, a first air guide duct is arranged between the first air inlet and the air inlet of the heat dissipation air passage, so as to guide external air from the first air inlet into the heat dissipation air passage along the first air guide duct; and / or, a second air guide duct is arranged between the second air inlet and the air inlet of the heat dissipation air passage, so as to guide external air from the second air inlet into the heat dissipation air passage along the second air guide duct.

[0012] In some optional embodiments, the electric control side shell part comprises a shell part enclosing an air outlet cavity, wherein the air outlet cavity is provided with an upper heat dissipation air outlet, a lower heat dissipation air outlet and / or a side heat dissipation air outlet.

[0013] In some optional embodiments, the electric control side shell part comprises a first side shell part, a second side shell part and a third side shell part enclosing an air outlet cavity, and the first side shell part and the third side shell part are respectively arranged on two sides of the second side shell part, wherein the second side shell part is provided with a waterproof baffle.

[0014] In some optional embodiments, the height of the waterproof baffle is h1, and the total height of the electric control box body is H, wherein 0.5≤h1 / H≤0.8.

[0015] In some optional embodiments, the heat dissipation air inlet passage and / or the heat dissipation air outlet of the electric control box body are provided with a grating assembly comprising at least double-layer gratings.

[0016] In some optional embodiments, the heat dissipation air outlet is provided with a first grating assembly, the first grating assembly comprises a first column of gratings and a second column of gratings arranged at intervals, and a first grating gap is arranged between two adjacent grating strips of the first column of gratings, wherein a grating strip of the second column of gratings is arranged on one side of the first grating gap.

[0017] In some optional embodiments, the heat dissipation air inlet passage is provided with a second grating assembly, the second grating assembly comprises a third column of gratings and a fourth column of gratings arranged at intervals, and a second grating gap is arranged between two adjacent grating strips of the third column of gratings, wherein a grating strip of the fourth column of gratings is arranged on one side of the second grating gap.

[0018] In some embodiments, the air conditioner comprises the outdoor unit of the air conditioner as described above.

[0019] The outdoor unit of the air conditioner and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The air conditioner outdoor unit provided by the embodiments of the present disclosure comprises an outdoor unit shell, a partition plate, a compressor, a fan and an electric control box. The electric control box is arranged on the top of the partition plate and internally arranged with a circuit board. The electric control box comprises an electric control shell enclosing an electric control cavity. The electric control shell comprises an electric control side shell part and an electric control bottom shell part. The electric control shell is provided with a heat dissipation air inlet and a heat dissipation air outlet for forming a heat dissipation air path. The heat dissipation air inlet is arranged on the part of the electric control bottom shell part located in the compressor cavity, and the heat dissipation air outlet is arranged on the part of the electric control side shell part located in the fan cavity. In addition, the first side shell part of the outdoor unit shell is provided with a first air inlet arranged on the upper part and a second air inlet arranged on the lower part.

[0021] It can be seen that the air conditioner outdoor unit provided by the embodiments of the present disclosure is provided with the first air inlet arranged on the upper part and the second air inlet arranged on the lower part in the first side shell part. The two air inlets arranged on the upper and lower parts are arranged to guide air, thereby ensuring the smoothness of the air guiding path.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute proportional limitation, and wherein:

[0024] Figure 1 is a structural schematic view of an electric control box provided by the embodiments of the present disclosure;

[0025] Figure 2 is an exploded schematic view of an electric control box provided by the embodiments of the present disclosure;

[0026] Figure 3 is a structural schematic view of a heat dissipation air outlet provided with a first grid assembly according to the embodiments of the present disclosure;

[0027] Figure 4 is Figure 3 is an enlarged view of the selected part in FIG. 6;

[0028] Figure 5 is a structural schematic view of another heat dissipation air outlet provided with a first grid assembly according to the embodiments of the present disclosure;

[0029] Figure 6 is Figure 5 is an enlarged view of the selected part in FIG. 8;

[0030] Figure 7 is a structural schematic view of another heat dissipation air outlet provided with a first grid assembly according to the embodiments of the present disclosure;

[0031] Figure 8 is another structure schematic view of a heat dissipation air outlet provided with a first grid assembly provided by an embodiment of the present disclosure;

[0032] Figure 9 is a structure schematic view of a second grid assembly provided by an embodiment of the present disclosure;

[0033] Figure 10 is Figure 9 is an enlarged view of a selected part;

[0034] Figure 11 is another structure schematic view of a second grid assembly provided by an embodiment of the present disclosure;

[0035] Figure 12 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure;

[0036] Figure 13 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure;

[0037] Figure 14 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure;

[0038] Figure 15 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure;

[0039] Figure 16 is a structure schematic view of an air conditioner outdoor unit provided by an embodiment of the present disclosure;

[0040] Figure 17 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure;

[0041] Figure 18 is another structure schematic view of an electric control box provided by an embodiment of the present disclosure.

[0042] Reference signs:

[0043] 100: electric control shell; 11: electric control side shell part; 12: electric control bottom shell part; 13: electric control box cover plate; 110: heat dissipation air outlet; 120: heat dissipation air inlet; 111: electric control side shell body; 112: side heat dissipation air outlet; 113: upper heat dissipation air outlet; 114: waterproof baffle; 1101: first side shell part; 1102: second side shell part;

[0044] 2: circuit board;

[0045] 31: first column of grids; 32: second column of grids; 313: first grid gap;

[0046] 41: third column of grids; 42: fourth column of grids; 413: second grid gap;

[0047] 5: heat sink; 51: air intake damper;

[0048] 600: outdoor unit housing; 61: first air intake; 62: second air intake; 601: first side housing; 602: handle;

[0049] 7: partition plate;

[0050] 8: fan;

[0051] 9: compressor. DETAILED DESCRIPTION

[0052] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0053] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances in order to describe the embodiments of the present disclosure herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0054] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Also, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0055] In addition, the terms "set", "connected", and "fixed" should be understood broadly. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection via an intermediate medium, or internal communication between two devices, elements, or components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific circumstances.

[0056] Unless otherwise specified, the term "plurality" means two or more.

[0057] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0058] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0059] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0060] The present disclosure provides an electric control box.

[0061] The electric control box provided by the embodiments of the present disclosure comprises an electric control shell 100, a circuit board 2, and a radiator 5. The electric control shell 100 encloses an electric control containing cavity. The electric control shell 100 comprises an electric control side shell part 11 and an electric control bottom shell part 12. The electric control shell 100 is provided with a heat dissipation air inlet 120 and a heat dissipation air outlet 110 for forming a heat dissipation air path. The circuit board 2 is arranged in the electric control containing cavity. The radiator 5 is arranged in the heat dissipation air path and is used for dissipating heat for the circuit board 2. The heat dissipation air inlet and / or the heat dissipation air outlet is provided with a grid assembly comprising at least double-layer grids.

[0062] The circuit board 2 arranged in the electric control box is provided with IPM, IGBT, diode, and rectifier bridge and other heat generating devices. The radiator 5 can dissipate heat for these high-power heat generating components.

[0063] The present disclosure provides a semi-closed electric control box. The radiator 5 is arranged in the heat dissipation air path. The heat dissipation air inlet 120 and the heat dissipation air outlet 110 are arranged on the two sides of the radiator 5, respectively. The fan 8 of the air conditioner outdoor unit rotates to generate negative pressure, thereby introducing external normal-temperature air into the electric control box to dissipate heat for the circuit board 2 in the electric control box.

[0064] The electric control shell 100 of the electric control box is provided with a heat dissipation air inlet 120 and a heat dissipation air outlet 110 to form a heat dissipation air path inside the electric control box. When the electric control box is installed on the outdoor unit of the air conditioner, the normal temperature air outside the outdoor unit of the air conditioner can be introduced into the heat dissipation air path of the electric control box, so that the normal temperature air exchanges heat with the radiator 5, and the hot air formed after the exchange is blown out from the heat dissipation air outlet 110, thereby improving the heat dissipation effect of the circuit board 2 of the electric control box.

[0065] Meanwhile, the electric control box provided by the embodiment of the present disclosure is provided with a grid assembly including at least double-layer grids in the heat dissipation air inlet path and / or the heat dissipation air outlet path. The grid assembly improves the buffering effect of the air inlet or air outlet, and avoids the problem of poor heat dissipation caused by the hot air rebound at the heat dissipation air outlet 110. Meanwhile, the waterproof and insect-proof effect of the electric control box is improved.

[0066] Optionally, the shape of the grid in the grid assembly can be a long strip, a hollow circle, or other irregular shapes. Optionally, in the grid assembly of the double-layer grids, the two grids are staggered, the grid includes a grid skeleton and a grid gap between the grid skeletons, and the grid skeleton of one grid is correspondingly arranged at the grid gap of the other grid in the grid assembly of the double-layer grids. In this way, the air passing through the grid assembly is redirected, the waterproof and insect-proof effect of the electric control box is improved, and the problem of poor heat dissipation caused by the hot air rebound is avoided.

[0067] It can be understood that the heat dissipation air inlet path is the air path between the heat dissipation air inlet 120 and the radiator 5 in the heat dissipation air path, and it can be understood that the heat dissipation air inlet path includes the heat dissipation air inlet 120.

[0068] It can be understood that the heat dissipation air outlet path is the air path between the heat dissipation air outlet 110 and the radiator 5 in the heat dissipation air path, and it can be understood that the heat dissipation air outlet path includes the heat dissipation air outlet 110.

[0069] Optionally, the heat dissipation air inlet 120 is arranged on the electric control bottom shell part 12, and / or the heat dissipation air outlet 110 is arranged on the electric control side shell part 11.

[0070] In the embodiment of the present disclosure, the heat dissipation air inlet 120 is arranged on the electric control bottom shell part 12, and the heat dissipation air outlet 110 is arranged on the electric control side shell part 11. Optionally, the heat dissipation air inlet 120 is a strip-shaped opening, or the number of heat dissipation air inlets 120 is one or more; optionally, the number of heat dissipation air outlets 110 can also be multiple to form multiple air outlets of the side air outlet, the bottom air outlet and / or the top air outlet, thereby improving the heat dissipation effect of the circuit board 2.

[0071] Optionally, the heat dissipation air outlet 110 is provided with a first grille assembly, the first grille assembly comprises a first column of grilles 31 and a second column of grilles 32 arranged in an interval, and a first grille gap 313 is arranged between two adjacent grille bars 311 and 312 of the first column of grilles 31, wherein the grille bars of the second column of grilles 32 are arranged on one side of the first grille gap 313. Figure 5 and Figure 6 as shown.

[0072] The first grille assembly comprises the first column of grilles 31 and the second column of grilles 32, and the first column of grilles 31 and the second column of grilles 32 are arranged in an interval and staggered, and the grille bars of the second column of grilles 32 are arranged in the grille gaps of the first column of grilles 31. In this way, when the hot air after completing heat exchange with the heat sink 5 flows out through the first grille assembly, it first passes through the gaps of the first column of grilles 31, changes direction, and then flows out from the gaps of the second column of grilles 32, avoiding the problem of poor heat dissipation caused by the formation of hot air rebound at the heat dissipation air outlet 110. At the same time, the second column of grilles 32 forms a shielding effect on the gaps of the first column of grilles 31, improving the waterproof and insect-proof effect of the electric control box.

[0073] Optionally, the shape of the grille bars in the first column of grilles 31 and the second column of grilles 32 can be a horizontal straight bar shape, as shown in Figures 1 to 7 The shape of the grille bars can also be a vertical straight bar shape, or the shape of the grille bars can also be an arc-shaped grille bar.

[0074] Optionally, the grille bars of the second column of grilles 32 are arranged on one side of the first grille gap 313, which can be understood as that the grille bars of the second column of grilles 32 are arranged on the front side or the rear side of the first grille gap 313, so that the grille bars of the second column of grilles 32 form a shielding effect on the first grille gap 313.

[0075] Optionally, the electric control side shell part 11 comprises an electric control side shell body 111, and the first grille assembly is arranged on the electric control side shell body 111, wherein the first column of grilles 31 is arranged along the shape of the electric control side shell body 111, and the second column of grilles 32 is arranged protruding from the electric control side shell body 111. As shown in Figure 7 .

[0076] The first column of grilles 31 is arranged along the shape of the electric control side shell body 111, and the second column of grilles 32 is arranged protruding from the electric control side shell body 111, so that a gap is formed between the first column of grilles 31 and the second column of grilles 32, as shown in Figure 3 and Figure 7 . In this way, the setting stability of the first grille assembly is improved.

[0077] Optionally, the first grid gap 313 is projected in the first direction to obtain a first projection, and the grid bars of the second column of grids 32 are projected in the first direction to obtain a second projection, wherein the first projection overlaps the second projection; or the second projection covers the first projection.

[0078] Optionally, the first direction can be a horizontal direction. The first projection overlaps the second projection, so that the grid bars of the second column of grids 32 are arranged completely at the first grid gap 313, and when viewed from the first direction, an occlusion plate with complete occlusion and no gap is obtained, as shown in Figure 8 , which improves the waterproof and insect-proof effect of the electric control box.

[0079] Optionally, the gap between the first column of grids 31 and the second column of grids 32 is less than or equal to 5 mm.

[0080] Optionally, the gap D1 between the first column of grids 31 and the second column of grids 32 is less than or equal to 5 mm, or D1 is less than or equal to 4 mm, or D1 is less than or equal to 3 mm, which ensures the smoothness of the heat dissipation air path while improving the waterproof and insect-proof effect of the electric control box. As shown in Figure 4 .

[0081] Optionally, the heat dissipation air inlet path is provided with a second grid assembly, and the second grid assembly comprises a third column of grids 41 and a fourth column of grids 42 arranged at intervals, and a second grid gap 413 is arranged between adjacent two grid bars 411 and 412 of the third column of grids 41, wherein the grid bars of the fourth column of grids 42 are arranged on one side of the second grid gap 413. As shown in Figures 9 to 11 .

[0082] The second grid assembly comprises the third column of grids 41 and the fourth column of grids 42, and the third column of grids 41 and the fourth column of grids 42 are arranged at intervals and staggered, and the grid bars of the fourth column of grids 42 are arranged in the grid gaps of the third column of grids 41. In this way, the air entering from the heat dissipation air inlet 120 first passes through the gaps of the third column of grids 41, changes direction, and then flows out from the gaps of the fourth column of grids 42. The fourth column of grids 42 forms an occlusion effect on the gaps of the third column of grids 41, thereby improving the waterproof and insect-proof effect of the electric control box.

[0083] Optionally, the shape of the grid bars in the third column of grids 41 and the fourth column of grids 42 can be a horizontal straight bar, as shown in Figures 9 to 11 . The shape of the grid bars can also be a vertical straight bar, or the shape of the grid bars can also be an arc-shaped grid bar.

[0084] Optionally, the grid bars of the fourth column of grids 42 are arranged at one side of the second grid gap 413, which can be understood as that the grid bars of the fourth column of grids 42 are arranged at the front side or the rear side of the second grid gap 413, so that the grid bars of the fourth column of grids 42 form a shielding to the second grid gap 413.

[0085] Optionally, the second grid gap 413 is projected in the second direction to obtain a third projection, and the grid bars of the fourth column of grids 42 are projected in the second direction to obtain a fourth projection, wherein the third projection overlaps the fourth projection; or the fourth projection covers the third projection.

[0086] Optionally, the second direction can be a horizontal direction. The third projection overlaps the fourth projection, so that the grid bars of the fourth column of grids 42 are arranged completely at the second grid gap 413, and when viewed from the second direction, a shielding plate with complete shielding and no gap is obtained, thereby improving the waterproof and insect-proof effect of the electric control box. Optionally, the fourth projection covers the third projection, which can be understood as that the grid bars of the fourth column of grids 42 are slightly larger than the second grid gap 413, thereby improving the shielding effect of the fourth column of grids 42 to the second grid gap 413 and improving the waterproof and insect-proof effect of the electric control box.

[0087] Optionally, the gap between the third column of grids 41 and the fourth column of grids 42 is less than or equal to 5 mm.

[0088] Optionally, the gap D2 between the third column of grids 41 and the fourth column of grids 42 is less than or equal to 5 mm, or D2 is less than or equal to 4 mm, or D2 is less than or equal to 3 mm, which ensures smooth air inlet of the heat dissipation air duct while improving the waterproof and insect-proof effect of the electric control box.

[0089] Optionally, the electric control side shell part 11 includes a first side shell part 1101, a second side shell part 1102 and a third side shell part which enclose an air outlet cavity, and the first side shell part 1101 and the third side shell part are respectively arranged at two sides of the second side shell part 1102, wherein the first grid assembly is arranged at least at the second side shell part 1102. The second side shell part 1102 is arc-shaped or plate-shaped. Figure 12 and Figure 13 as shown.

[0090] The first side shell part 1101, the second side shell part 1102 and the third side shell part substantially form a U shape, wherein the second side shell part 1102 can be understood as a side shell part arranged on the heat dissipation air duct, and the second side shell part 1102 can be arc-shaped or straight plate-shaped.

[0091] Optionally, the heat sink 5 includes a first end and a second end, wherein the first grid assembly is arranged at the first end of the heat sink 5, and the second grid assembly is arranged at the second end of the heat sink 5.

[0092] The first end is a heat dissipation outflow end of the heat sink 5, and the second end is a heat dissipation inflow end of the heat sink 5. The first grid assembly is arranged at the first end of the heat sink 5, and the second grid assembly is arranged at the second end of the heat sink 5. In this way, the grid assembly including at least double-layer grids is arranged at the heat dissipation inflow end and the heat dissipation outflow end of the heat sink 5, the waterproof and insect-proof effects of the two ends of the heat sink 5 are improved, and the problem of hot air backflow is avoided.

[0093] Optionally, a distance from the first grid assembly to the first end of the heat sink 5 is L1, and L1≥25 mm. As shown in FIG. 6. Figure 14 In this way, a buffer space is formed between the first end of the heat sink 5 and the first grid assembly, the heat dissipation outflow end of the heat sink 5 can smoothly flow out after experiencing a certain buffer, and when water enters, the water can flow out from the bottom outlet of the second side shell part 1102. Optionally, L1 can be 25 mm, 27 mm, 30 mm, 32 mm, 35 mm, 40 mm, etc. Specifically, L1 can be set according to the size of the heat sink 5 or the size of the reserved space in the air conditioner outdoor unit.

[0094] It can be understood that, Figure 14 The position shown in the dashed box in FIG. 5 is the position of the heat sink 5.

[0095] Optionally, a distance from the second grid assembly to the second end of the heat sink 5 is L2, and 10 mm≤L2≤15 mm. The second end is the heat dissipation inflow end of the heat sink 5. In the embodiment of the present disclosure, after ensuring that the inflow air is fully mixed to enter the heat sink 5, the problem of blocking the air path due to the second grid assembly being too close to the second end of the heat sink 5 is prevented. Optionally, L2 can be 10 mm, 12 mm, 15 mm, etc.

[0096] Optionally, the heat dissipation outflow port 110 includes a heat dissipation side outflow port and a heat dissipation bottom outflow port that are in communication with each other, and a distance from the heat dissipation bottom outflow port to the first end of the heat sink 5 is L3, and L3≥15 mm. As shown in FIG. 6. Figure 14

[0097] If the distance from the heat dissipation bottom outflow port to the first end of the heat sink 5 is too small, the resistance is too large, if the distance is too large, the wind speed of this part is small, and the air induction effect is not obvious. In the embodiment of the present disclosure, L3≥15 mm, which ensures that the air of the heat dissipation bottom outflow port can be smoothly sucked away by the fan. Optionally, L3 can be 15 mm, 17 mm, 20 mm, 25 mm, etc.

[0098] Optionally, an extension distance L4 of the air induction baffle 51 at the bottom of the heat sink 5 is the same as the length of the heat sink 5. As shown in FIG. 6. Figure 14 ​The air guide baffle 51 arranged at the bottom of the radiator 5 can guide the cold air to effectively perform forced convection air cooling along the fins of the radiator 5. If the air guide baffle 51 is not arranged, the air will bypass the gaps of the radiator 5 and be directly sucked away by the fan from below the fins with small resistance, and the fins of the radiator 5 cannot be effectively cooled. In the embodiment of the present disclosure, the extension distance L4 of the air guide baffle 51 arranged at the bottom of the radiator 5 is the same as the length of the radiator 5, so that the heat dissipation effect of the radiator 5 is improved.

[0099] The present disclosure also provides an air conditioner outdoor unit. The air conditioner outdoor unit provided by the present disclosure comprises the electric control box as described above.

[0100] Optionally, the air conditioner outdoor unit comprises an outdoor unit shell 600, a partition plate 7, a compressor 9, a fan 8, and an electric control box. The outdoor unit shell 600 encloses an internal cavity; the partition plate 7 divides the internal cavity into a compressor cavity and a fan 8 cavity, and the outdoor unit shell 600 comprises a first side shell 601 enclosing the compressor cavity; the compressor 9 is arranged in the compressor cavity; the fan 8 is arranged in the fan 8 cavity; and the electric control box is arranged at the top of the partition plate 7 and internally arranged with a circuit board 2, and the electric control box comprises an electric control shell 100 enclosing an electric control cavity, the electric control shell 100 comprises an electric control side shell 11 and an electric control bottom shell 12, and the electric control shell 100 is provided with a heat dissipation air inlet 120 and a heat dissipation air outlet 110 for forming a heat dissipation air path, and the heat dissipation air inlet 120 is arranged at the part of the electric control bottom shell 12 located in the compressor cavity, and the heat dissipation air outlet 110 is arranged at the part of the electric control side shell 11 located in the fan 8 cavity. The first side shell 601 of the outdoor unit shell 600 is provided with a first air inlet 61 at the upper part and a second air inlet 62 at the lower part.

[0101] The side air guide normal temperature air has a good effect on the heat dissipation of the circuit board 2 in the electric control box: first, the width of the radiator 5 is large, the number of fins that can be arranged is large, the heat dissipation area is large, and the wind resistance is reduced due to the small width of the fins; second, the air inlet temperature of the radiator 5 is relatively low, generally close to the ambient temperature or 4-6℃ higher than the ambient temperature, and the air inlet temperature of the radiator 5 is lower than the air temperature of the condenser which is heated and increased by 10-12℃, so the heat dissipation performance is better. Third, the side air guide through a duct can not only dissipate heat for the capacitors, inductors, IPM and other components of the circuit board 2, but also dissipate heat for the fins of the frequency conversion radiator 5.

[0102] The embodiment of the present disclosure provides an air conditioner outdoor unit with a heat dissipation air passage opened on an electric control box. The installation environment of the air conditioner outdoor unit is complex, and the air inlet of the outdoor unit may be blocked by plant growth or insects, dust and spider webs, causing the outdoor unit to fail to draw air for heat dissipation at room temperature. The first side shell 601 of the outdoor unit shell 600 is provided with a first air inlet 61 and a second air inlet 62 arranged vertically, providing a double air inlet solution. When one of the two air inlets is blocked by foreign matter, affecting the air drawing effect, the other air inlet can smoothly introduce air outside the outdoor unit shell 600, ensuring the heat dissipation effect of the circuit board 2 in the electric control box. As shown in Figure 16

[0103] Optionally, the first air inlet 61 and / or the second air inlet 62 is provided with a louvered air inlet grille.

[0104] Optionally, the electric control box can be placed horizontally or inclined to adapt to different air inlet angles.

[0105] Optionally, the first air inlet 61 is arranged at a height higher than that of the compressor 9.

[0106] When air passes through the compressor 9, it will be heated and the temperature will rise by 5℃ or even more. In the air conditioner outdoor unit provided by the embodiment of the present disclosure, the first air inlet 61 of the first side shell 601 is arranged at a height higher than that of the compressor 9, so that the air entering from the first air inlet 61 can directly reach the electric control box without being heated by the compressor 9, reducing the temperature of the air entering the electric control box for heat dissipation and improving the heat dissipation effect of the circuit board 2 in the electric control box. Optionally, the first air inlet 61 is arranged at the handle 602 of the air conditioner outdoor unit.

[0107] Optionally, a first air drawing duct is arranged between the first air inlet 61 and the air inlet of the heat dissipation air passage to draw air from outside the first air inlet 61 into the heat dissipation air passage along the first air drawing duct; and / or a second air drawing duct is arranged between the second air inlet 62 and the air inlet of the heat dissipation air passage to draw air from outside the second air inlet 62 into the heat dissipation air passage along the second air drawing duct.

[0108] The arrangement of the first air drawing duct and the second air drawing duct can directly draw air from the first air inlet 61 or the second air inlet 62 into the heat dissipation air passage, thereby avoiding the heating effect of the heat of the compressor 9 on air drawing during air drawing, and improving the heat dissipation effect of the circuit board 2 in the electric control box.

[0109] Optionally, the first air drawing duct and / or the second air drawing duct is a tubular or plastic air duct. ​

[0110] Optionally, the electric control side shell part 11 comprises a first side shell part 1101, a second side shell part 1102 and a third side shell part which enclose an air outlet cavity, and the first side shell part 1101 and the third side shell part are respectively arranged on two sides of the second side shell part 1102, wherein the second side shell part 1102 is provided with a waterproof baffle 114.

[0111] The air outlet end of the radiator 5 is provided with an air outlet cavity, and the air outlet cavity is provided with an upper air outlet 113 for upward air outlet, a lower air outlet for downward air outlet and / or a side air outlet 112 for side air outlet. The arrangement of multiple air outlets improves the heat dissipation effect of the electric control panel. The high-speed air directly formed in the axial direction by the fan 8 quickly carries away the low-speed high-temperature air from the electric control box, forming a narrow tube effect. The high-speed air quickly removes the low-speed hot air after passing through the electric control box, avoiding heat accumulation and strengthening the heat dissipation of the electric control box.

[0112] Through fluid simulation test, the wind speed of the lower air outlet is greater than that of the upper air outlet 113, and the wind speed of the upper air outlet 113 is greater than that of the side air outlet 112.

[0113] Optionally, the electric control side shell part 11 comprises a first side shell part 1101, a second side shell part 1102 and a third side shell part which enclose an air outlet cavity, and the first side shell part 1101 and the third side shell part are respectively arranged on two sides of the second side shell part 1102, wherein the second side shell part 1102 is provided with a waterproof baffle 114.

[0114] Optionally, the horizontal distance between the waterproof baffle 114 and the first end of the radiator 5 is 10-40mm, which ensures smooth air outlet and improves waterproof and insect prevention effect. Optionally, the waterproof baffle 114 is arc-shaped or straight plate type.

[0115] Similarly, the air inlet end of the radiator 5 is also provided with a waterproof baffle 114. Optionally, the horizontal distance between the waterproof baffle 114 arranged at the air inlet end and the air inlet end of the radiator 5 is 10-30mm, which ensures smooth air inlet.

[0116] Optionally, the waterproof baffle 114 is provided with louvers, and the louvers are inclined upward. Optionally, the angle between the louvers and the horizontal direction is a, and 40°<a<50°, so that the air outlet and waterproof can be considered. As shown in Figure 17 .

[0117] Optionally, the waterproof baffle 114 is not provided with an air outlet, which improves the waterproof and insect prevention effect. As shown in Figure 18 .

[0118] Optionally, the height of the waterproof baffle 114 is h1, and the total height of the electric control box is H, wherein 0.5≤h1 / H≤0.8. As shown in Figure 18 .

[0119] Optionally, the waterproof and insect-proof ventilation plate is arranged in the electric control box, and longitudinal holes, longitudinal louvers, or a plurality of circular holes arranged in an array are arranged on the waterproof and insect-proof ventilation plate. Optionally, the inner diameter of the circular hole is 2mm, 3mm, or 4mm.

[0120] The embodiments of the present disclosure further provide an air conditioner, which comprises the air conditioner outdoor unit as described above.

[0121] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner outdoor unit characterized by comprising: The air conditioner outdoor unit comprises: an outdoor unit shell enclosing an internal cavity; a partition plate dividing the internal cavity into a compressor cavity and a fan cavity, the outdoor unit shell comprising a first side shell enclosing the compressor cavity; a compressor arranged in the compressor cavity; a fan arranged in the fan cavity; and an electric control box arranged on the top of the partition plate and internally provided with a circuit board, the electric control box comprising an electric control shell enclosing an electric control accommodating cavity, the electric control shell comprising an electric control side shell portion and an electric control bottom shell portion, the electric control shell being provided with a heat dissipation air inlet and a heat dissipation air outlet for forming a heat dissipation air passage, the heat dissipation air inlet being arranged on the portion of the electric control bottom shell portion located in the compressor cavity, and the heat dissipation air outlet being arranged on the portion of the electric control side shell portion located in the fan cavity, wherein the first side shell of the outdoor unit shell is provided with a first air inlet located at the upper portion and a second air inlet located at the lower portion.

2. The air conditioner outdoor unit according to claim 1, wherein the height of the first air inlet is higher than the height of the compressor.

3. The air conditioner outdoor unit according to claim 2, wherein the first air inlet is arranged at the handle of the air conditioner outdoor unit.

4. The air conditioner outdoor unit according to claim 2, wherein a first air guide duct is arranged between the first air inlet and the air inlet of the heat dissipation air passage to guide the external air from the first air inlet into the heat dissipation air passage along the first air guide duct; and / or a second air guide duct is arranged between the second air inlet and the air inlet of the heat dissipation air passage to guide the external air from the second air inlet into the heat dissipation air passage along the second air guide duct.

5. The air conditioner outdoor unit according to claim 1, wherein the electric control side shell portion comprises an air outlet cavity, wherein the air outlet cavity is provided with an upper heat dissipation air outlet, a lower heat dissipation air outlet and / or a side heat dissipation air outlet.

6. The air conditioner outdoor unit according to claim 5, wherein the electric control side shell portion comprises a first side shell portion, a second side shell portion and a third side shell portion enclosing the air outlet cavity, and the first side shell portion and the third side shell portion are arranged on the two sides of the second side shell portion, wherein the second side shell portion is provided with a waterproof baffle.

7. The air conditioner outdoor unit according to claim 6, wherein the height of the waterproof baffle is h1, and the total height of the electric control box is H, wherein 0.5≤h1 / H≤0.

8.

8. The air conditioner outdoor unit according to any one of claims 1 to 7, wherein a grille assembly comprising at least double-layer grilles is arranged at the heat dissipation air inlet and / or the heat dissipation air outlet of the electric control box.

9. The air conditioner outdoor unit according to claim 8, wherein the heat dissipation air outlet is provided with a first grille assembly, the first grille assembly comprising a first column of grilles and a second column of grilles arranged in a spaced manner, and a first grille gap is arranged between the two adjacent grille strips of the first column of grilles, wherein the grille strips of the second column of grilles are arranged on one side of the first grille gap.

10. The air conditioner outdoor unit according to claim 8, wherein ​ The heat dissipation air inlet air path is provided with a second grid assembly, the second grid assembly comprises a third column of grids and a fourth column of grids arranged at intervals, a second grid gap is arranged between two adjacent grid bars of the third column of grids, The grid bar of the fourth column of grids is arranged on one side of the second grid gap.

11. An air conditioner characterized by comprising: An air conditioner outdoor unit comprising any one of claims 1 to 10.

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