Electric control box, air conditioner outdoor unit and air conditioner

Abstract

The electric control box comprises a box body, the upper side and the lower side of the box body are open, a ventilation grid is arranged in the box body and used for dividing the space in the box body into a heat dissipation cavity and an element cavity which are arranged in the first direction, the ventilation grid extends in the second direction, and the heat dissipation cavity and the element cavity are communicated with each other. A plurality of first air inlet holes communicated with the element cavity are formed in the part, forming the element cavity, of the box body, and the first direction, the second direction and the vertical direction are perpendicular to each other; the box cover covers the upper side of the box body and is used for blocking the opening in the upper side of the box body; the bottom plate is arranged on the lower side of the box body and used for blocking the lower side opening of the element cavity and the lower side opening of part of the heat dissipation cavity, and an air outlet communicated with the heat dissipation cavity is defined between the bottom plate and the box body. According to the electric control box, the purpose of insect prevention can be achieved, the ventilation effect is achieved, and the heat dissipation effect of an electric controller is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to an electrical control box, an outdoor air conditioning unit, and an air conditioner. Background Technology

[0002] In related technologies, the electrical control box of an air conditioner outdoor unit is generally semi-open, meaning the control box is inverted, with the circuit board exposed. The left side of the control box is for heat dissipation, while the right and front sides are open to achieve the effect of electrical control ventilation and heat dissipation. In some countries or regions with a high prevalence of geckos and reptiles, geckos or flying insects can enter the compressor cavity through certain assembly gaps or process holes in the outdoor unit, and then invade the circuit board of the electrical control box, causing a short circuit, electrical control failure, and in severe cases, even causing the outdoor unit to explode or catch fire. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electrical control box that provides both good insect prevention and ventilation.

[0004] This utility model also proposes an outdoor unit for an air conditioner, which includes the aforementioned electrical control box.

[0005] This utility model also proposes an air conditioner, which includes the above-mentioned outdoor unit.

[0006] An electrical control box according to an embodiment of the present invention includes: a box body, the upper and lower sides of which are open, a ventilation grille inside the box body for dividing the internal space of the box body into a heat dissipation cavity and a component cavity arranged along a first direction, the ventilation grille extending along a second direction, and a plurality of first air inlets communicating with the component cavity on the portion of the box body that forms the component cavity, wherein the first direction, the second direction, and the vertical direction are perpendicular; a box cover, the box cover being disposed on the upper side of the box body for sealing the upper opening of the box body; and a bottom plate, the bottom plate being disposed on the lower side of the box body for sealing the lower opening of the component cavity and part of the lower opening of the heat dissipation cavity, wherein an air outlet communicating with the heat dissipation cavity is defined between the bottom plate and the box body.

[0007] According to the embodiment of this utility model, the electrical control box, by opening the upper and lower sides of the box body, sealing the upper side with a lid, and sealing the lower side with a bottom plate, can provide comprehensive protection for the electrical control box and achieve the purpose of insect prevention. In addition, a ventilation grille is provided inside the box to divide the internal space into a heat dissipation cavity and a component cavity arranged along a first direction. Multiple first air inlets are provided on the portion of the box body constituting the component cavity. An air outlet communicating with the heat dissipation cavity is defined between the bottom plate and the box body. This allows airflow to enter the component cavity through the first air inlets, then enter the heat dissipation cavity through the ventilation grille, and finally exit from the air outlet, achieving a ventilation effect and ensuring the heat dissipation effect of the electrical controller.

[0008] According to some embodiments of the present invention, the cross-sectional area of ​​the first air inlet gradually decreases in the direction toward the inner side of the component cavity.

[0009] According to some embodiments of the present invention, the ventilation grille has a plurality of ventilation channels spaced apart along the second direction, the ventilation channels having an inlet communicating with the component cavity and an outlet communicating with the heat dissipation cavity, the inlet facing the second direction and the outlet facing the first direction.

[0010] In some embodiments of this utility model, the ventilation grille includes: a mounting member; grille strips disposed on the mounting member, wherein the grille strips are a plurality of strips spaced apart along the second direction, and the ventilation duct is defined between the grille strips located at the edge of the second direction and the mounting member, as well as between two adjacent grille strips.

[0011] In some embodiments of this utility model, in a cross-section perpendicular to the vertical direction, the grid bar includes a first segment, a second segment, and a third segment connected in sequence. The first segment and the third segment are respectively connected to both ends of the second segment. The second segment extends along the first direction. The first segment and the third segment extend toward opposite sides of the second direction. An inlet is defined between the end of the first segment away from the second segment and the end of the third segment of the adjacent grid bar away from the second segment or between the first segment and the mounting member. An outlet is defined between the end of the second segment away from the first segment and the end of the third segment of the adjacent grid bar away from the second segment or between the mounting member.

[0012] In some embodiments of this utility model, the connection between the first segment and the second segment is connected by a transition surface along the second direction toward the third segment. In the direction from the first segment to the second segment, the transition surface includes a first arc surface, an inclined surface, and a second arc surface.

[0013] In some embodiments of this utility model, the angle between the inclined surface and the first direction is 10°-30°.

[0014] In some embodiments of this utility model, the inlet is provided with reinforcing ribs.

[0015] According to some embodiments of the present invention, at least a portion of the ventilation grille is inclined toward the component cavity in the vertical direction, and a plurality of second air inlets are provided on the base plate. The plurality of second air inlets are located in the heat dissipation cavity and at least a portion of them are opposite to the ventilation grille in the vertical direction.

[0016] According to some embodiments of the present invention, the box body includes: a box body defining the heat dissipation cavity and the component cavity, and a notch communicating with the component cavity is provided on one side of the box body along the second direction; a side cover detachably disposed at the notch for sealing the notch, and at least one of the box body and the side cover is provided with the first air inlet hole.

[0017] In some embodiments of this utility model, one end of the side cover along the first direction is inserted into the box body, and the other end is snapped into the box body.

[0018] In some embodiments of this utility model, the upper side of the notch is open, and the lower end of the box cover opposite to the notch is provided with an outwardly folded baffle. The baffle extends along the first direction, and the upper end of the side cover is provided with a fixed baffle that bends toward the cavity of the component. The fixed baffle extends along the first direction and is placed above the baffle.

[0019] In some embodiments of this utility model, a first wire-passing groove is provided on the lower side wall of the notch, and the side of the first wire-passing groove facing away from the component cavity is open.

[0020] In some embodiments of this utility model, a baffle is provided at the opening of the first wire passage groove, one end of the baffle is connected to one end of the opening of the first wire passage groove, and the other end is spaced apart from the other end of the opening of the first wire passage groove.

[0021] In some embodiments of this utility model, the first wire groove is a plurality of grooves spaced apart along the first direction.

[0022] In some embodiments of this utility model, the side cover has a first fixing buckle.

[0023] In some embodiments of this utility model, a second wire passage groove is provided on the side of the box body away from the heat dissipation cavity. The second wire passage groove is located on the side of the box body close to the notch along the second direction and communicates with the notch.

[0024] In some embodiments of this utility model, elastic arms are provided on opposite sides of the opening of the second wire groove. In the direction toward the inside of the wire groove, the two elastic arms are inclined toward each other and spaced apart.

[0025] According to some embodiments of the present invention, the side of the cover opposite to the heat dissipation cavity is provided with a first cable routing groove with an open upper side. The first cable routing groove extends along the second direction, and a first cable blocking buckle is provided at the opening of the first cable routing groove.

[0026] According to some embodiments of the present invention, the side of the box body away from the component cavity is provided with a second wiring groove with an open upper side, the second wiring groove extends along the second direction, and a second wire blocking buckle is provided at the opening of the second wiring groove.

[0027] According to some embodiments of the present invention, the box body is provided with an assembly part on one side along the second direction, and the bottom plate has an upwardly extending mounting part at one end along the second direction, and the mounting part is connected to the assembly part.

[0028] In some embodiments of this utility model, the assembly part has a second fixing buckle.

[0029] According to some embodiments of the present invention, a downwardly extending rain baffle is provided on the side of the box body away from the component cavity. The rain baffle extends along the second direction, and the air outlet is defined between the lower end of the rain baffle and the bottom plate.

[0030] According to some embodiments of the present invention, a heat dissipation channel is provided on the side of the box body away from the component cavity, the upper side of the heat dissipation channel is open, the heat dissipation channel extends along the second direction, and the end of the box cover away from the component cavity is fitted into the heat dissipation channel.

[0031] According to some embodiments of the present invention, the box lid is snap-fitted to the box body;

[0032] And / or, the box body is snapped into connection with the base plate;

[0033] And / or, the housing has mounting protrusions, and the base plate has mounting holes that mate with the mounting protrusions.

[0034] And / or, the base plate is a fireproof sheet metal part.

[0035] An outdoor air conditioning unit according to an embodiment of the present utility model includes: a housing; a partition plate disposed within the housing for dividing the housing into a fan cavity and a compressor cavity arranged along the first direction; and an electrical control box disposed above the partition plate, wherein at least a portion of the heat dissipation cavity is located within the fan cavity, and the component cavity is located within the compressor cavity.

[0036] According to the embodiment of this utility model, the outdoor unit of the air conditioner, by setting the aforementioned electrical control box, allows the upper and lower sides of the box to be open. The upper side is sealed by a cover, and the lower side is sealed by a base plate, providing comprehensive protection for the electrical control box and achieving the purpose of insect prevention. Furthermore, a ventilation grille is provided inside the box to divide the internal space into a heat dissipation cavity and a component cavity arranged along a first direction. Multiple first air inlets are provided on the portion of the box that forms the component cavity. An air outlet communicating with the heat dissipation cavity is defined between the base plate and the box body. This allows airflow to enter the component cavity through the first air inlets, then through the ventilation grille into the heat dissipation cavity, and finally exit from the air outlet, achieving a ventilation effect and ensuring the heat dissipation effect of the electrical controller.

[0037] In some embodiments of this utility model, a notch is provided above the partition plate, the electrical control box is disposed in the notch, and a sealing and protective component is provided between the electrical control box and the inner wall of the notch.

[0038] In some embodiments of this utility model, the box cover is provided with a partition buckle that engages with the middle partition.

[0039] The air conditioner according to an embodiment of the present invention includes the above-described outdoor air conditioner unit.

[0040] According to the embodiment of this utility model, the air conditioner, by setting the aforementioned outdoor unit, includes the aforementioned electrical control box, with the upper and lower sides of the box open. The upper side is sealed by a cover, and the lower side is sealed by a bottom plate, providing comprehensive protection for the electrical control box and achieving insect prevention. Furthermore, a ventilation grille is provided inside the box to divide the internal space into a heat dissipation cavity and a component cavity arranged along a first direction. Multiple first air inlets are provided on the portion of the box that forms the component cavity. An air outlet communicating with the heat dissipation cavity is defined between the bottom plate and the box body. This allows airflow to enter the component cavity through the first air inlets, then through the ventilation grille into the heat dissipation cavity, and finally exit from the air outlet, achieving ventilation and ensuring the heat dissipation effect of the electrical controller.

[0041] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0042] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0043] Figure 1 This is a perspective view of the electrical control box according to an embodiment of the present utility model;

[0044] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0045] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0046] Figure 4 This is a cross-sectional view of the electrical control box according to an embodiment of the present utility model;

[0047] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0048] Figure 6 This is a cross-sectional view of the electrical control box according to an embodiment of the present utility model from another angle;

[0049] Figure 7 yes Figure 6 Enlarged view of point D in the middle;

[0050] Figure 8 This is a top view of the electrical control box according to an embodiment of the present utility model;

[0051] Figure 9 It is along Figure 8 A cross-sectional view of the EE line;

[0052] Figure 10 yes Figure 9 Enlarged view at point F;

[0053] Figure 11 This is a perspective view of the box body and base plate of the electrical control box according to an embodiment of the present utility model;

[0054] Figure 12 This is a perspective view of the box body and base plate of the electrical control box according to an embodiment of the present utility model from another angle;

[0055] Figure 13 yes Figure 12 Enlarged view of point G in the middle;

[0056] Figure 14 This is a top view of the box body and bottom plate of the electrical control box according to an embodiment of the present utility model;

[0057] Figure 15 It is along Figure 14 A cross-sectional view of the middle HH line;

[0058] Figure 16 It is along Figure 14 Sectional view of line II in the middle;

[0059] Figure 17 This is a perspective view of the box body of the electrical control box according to an embodiment of the present utility model;

[0060] Figure 18 yes Figure 17 Enlarged view of point J in the middle;

[0061] Figure 19 yes Figure 17 Enlarged view at point K;

[0062] Figure 20 This is a perspective view of the base plate of the electrical control box according to an embodiment of the present utility model;

[0063] Figure 21 This is a perspective view of the side cover of the electrical control box according to an embodiment of the present utility model;

[0064] Figure 22 This is a perspective view of the cover, circuit board, and heat sink of the electrical control box according to an embodiment of the present utility model.

[0065] Figure 23 This is a perspective view of the cover of the electrical control box according to an embodiment of the present utility model;

[0066] Figure 24 This is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present utility model.

[0067] Figure label:

[0068] 100. Air conditioner outdoor unit;

[0069] 10. Electrical control box;

[0070] 1. Box body; 11. Box body; 111. Heat dissipation cavity; 112. Component cavity; 113. Notch; 114. First wire guide groove; 1141. Rib; 115. Second wire guide groove; 1151. Flexible arm; 116. Second wire routing groove; 1161. Second wire blocking clip; 117. Assembly part; 1171. Second wire fixing clip; 1172. Fourth clip; 118. Heat dissipation channel; 119. Slot; 12. Side cover; 121. Fixing baffle; 122. First wire fixing clip; 123. Second clip; 124. Clip; 13. First air inlet; 14. Air outlet; 15. Rain baffle; 16. Assembly protrusion; 17. First clip; 18. Sixth clip; 19. Eighth clip;

[0071] 2. Ventilation grille; 21. Ventilation duct; 211. Inlet; 212. Reinforcing rib; 213. Outlet; 22. Mounting component; 23. Grille bar; 231. First section; 232. Second section; 233. Third section; 234. Transition surface;

[0072] 3. Box lid; 31. Edge guard; 32. First cable routing channel; 33. First cable blocking clip; 34. Fifth clip; 35. Partition clip;

[0073] 4. Base plate; 41. Second air inlet; 42. Mounting part; 43. Third clip; 44. Assembly hole; 45. Seventh clip;

[0074] 5. Circuit board assembly; 51. Circuit board; 52. Heat sink; 53. Components;

[0075] 20. Housing; 201. Fan cavity; 202. Compressor cavity;

[0076] 30. Middle partition;

[0077] 40. Fan assembly; 50. Motor bracket. Detailed Implementation

[0078] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0079] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0080] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] The electrical control box 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0082] like Figure 1 and Figure 4 As shown, the electrical control box 10 according to an embodiment of the present utility model includes a box body 1, a box cover 3, and a bottom plate 4.

[0083] Specifically, if Figure 17 As shown, the upper and lower sides of the box 1 are open, and the box 1 has an installation space. The upper and lower sides of the installation space are open, and both sides of the installation space in the first direction and the second direction are provided with shielding structures. When the electrical control box 10 is used for the outdoor unit 100 of the air conditioner, the first direction of the electrical control box 10 can be the left-right direction of the outdoor unit 100 of the air conditioner, and the second direction of the electrical control box 10 can be the front-back direction of the outdoor unit 100 of the air conditioner. The first direction, the second direction and the up-down direction are perpendicular.

[0084] like Figure 17 As shown, the housing 1 has a ventilation grille 2, which divides the space inside the housing 1 into heat dissipation chambers 111 and component chambers 112 arranged along a first direction. The ventilation grille 2 extends along a second direction. (Reference) Figure 4 and Figure 22 As shown, the electrical control box 10 may also include a circuit board assembly 5, which is disposed within the electrical control box 10. The circuit board assembly 5 includes a circuit board 51, components 53 disposed on the circuit board 51, and a heat sink 52 for dissipating heat from the circuit board 51. The circuit board 51 may extend across the ventilation grille 2 in a first direction. Part of the circuit board 51 is located in the heat dissipation cavity 111, and part is located in the component cavity 112. The components 53 are connected to the circuit board 51 and are located in the component cavity 112. The heat sink 52 may be attached to the circuit board 51 for dissipating heat from the circuit board 51. The circuit board 51 is disposed within the heat dissipation cavity 111, and a bracket is provided between the heat sink 52 and the circuit board 51.

[0085] When the electrical control box 10 is used for the outdoor unit 100 of the air conditioner, refer to Figure 24As shown, the outdoor unit 100 of the air conditioner includes a housing 20 and a partition 30. The partition 30 is disposed inside the housing 20 and divides the space inside the housing 20 into a fan cavity 201 and a compressor cavity 202 arranged in the left-right direction (i.e., the first direction). The outdoor unit 100 of the air conditioner also includes a fan assembly 40 and a compressor. The fan assembly 40 is disposed inside the fan cavity 201, and the compressor is disposed inside the compressor cavity 202. In addition, a motor bracket 50 is provided inside the fan cavity 201. The motor bracket 50 is fixed to the housing 20 and extends in the vertical direction. The fan assembly 40 includes a fan and a motor that drives the fan to rotate. The motor is disposed on the motor bracket.

[0086] At least a portion of the radiator 52 is located within the fan cavity 201 for heat dissipation. The component cavity 112 is located within the compressor cavity 202, and the components 53 within the component cavity 112 are used for wiring connections with components such as the compressor and motor. A ventilation grille 2 is located within the housing 1 to separate the heat dissipation cavity 111 and the component cavity 112. This prevents rainwater or other contaminants from entering the component cavity 112 and affecting the reliability of the components 53 within the component cavity 112, thus ensuring the reliability of the electrical control box 10. Furthermore, the ventilation grille 2 allows for ventilation. Under the negative pressure within the fan cavity 201, airflow from the compressor cavity 202 can enter the component cavity 112 and then pass through the ventilation grille 2 into the heat dissipation cavity 111 to exchange heat with the radiator 52. As the airflow passes through the components 53 and the circuit board 51, it carries away heat from these components, achieving heat dissipation for the circuit board assembly 5. Additionally, it can also carry away hot airflow from the compressor cavity 202, achieving heat dissipation for the compressor cavity 202.

[0087] The cover 3 is located on the upper side of the box body 1 and connected to the box body 1, used to seal the upper opening of the box body 1, and can protect the electrical control box 10 from above. The bottom plate 4 is located on the lower side of the box body 1 to seal the lower opening of the component cavity 112 and part of the lower opening of the heat dissipation cavity 111, and the bottom plate 4 can protect the electrical control box 10 from the lower side. An air outlet 14 communicating with the heat dissipation cavity 111 is defined between the bottom plate 4 and the box body 1, and the part of the box body 1 that forms the component cavity 112 has a plurality of first air inlets 13 communicating with the component cavity 112. After the electrical control box 10 is protected on all sides, as well as on the top and bottom, a first air inlet 13 communicating with the component cavity 112 is provided on the part of the box body 1 that forms the component cavity 112, and an air outlet 14 is defined between the bottom plate 4 and the box body 1. Airflow can enter the component cavity 112 through the first air inlet 13, then enter the heat dissipation cavity 111 through the ventilation grille 2, and finally be discharged from the air outlet 14, thereby achieving heat dissipation of the electrical control box 10.

[0088] The structure of the electrical control box 10 in this application is protected on all four sides, the top and the bottom. The box body 1 is provided with a first air inlet 13, which can achieve ventilation while preventing insects and ensure the heat dissipation effect of the electrical control box 10.

[0089] According to the embodiment of this utility model, the electrical control box 10, by opening the upper and lower sides of the box body 1, sealing the upper side with a box cover 3, and sealing the lower side with a bottom plate 4, can provide comprehensive protection for the electrical control box 10 and achieve the purpose of insect prevention. In addition, a ventilation grille 2 is provided inside the box body 1 to divide the space inside the box body 1 into a heat dissipation cavity 111 and a component cavity 112 arranged along a first direction. Multiple first air inlets 13 are provided on the part of the box body 1 that constitutes the component cavity 112. An air outlet 14 communicating with the heat dissipation cavity 111 is defined between the bottom plate 4 and the box body 1. Airflow can enter the component cavity 112 through the first air inlets 13, then enter the heat dissipation cavity 111 through the ventilation grille 2, and finally be discharged from the air outlet 14, achieving the effect of ventilation and ensuring the heat dissipation effect of the electrical controller.

[0090] In some embodiments of this utility model, such as Figure 11 and Figure 22 As shown, the radiator 52 has mounting edges 521 at both ends along the second direction, and the housing 1 has support ribs 191 at both ends along the second direction. The two mounting edges 521 are respectively supported on the two support ribs 191.

[0091] In some embodiments of this utility model, such as Figure 2 , Figure 3 , Figures 8-10 As shown, the cross-sectional area of ​​the first air inlet 13 gradually decreases in the direction towards the inside of the component cavity 112. It can be understood that the first air inlet 13 is formed in a funnel shape. According to Bernoulli's principle, as the gas flows from the large end to the small end of the funnel, the pressure energy of the gas will gradually be converted into kinetic energy. The gas pressure at the large end is relatively high, the kinetic energy is relatively low, and the flow rate is slow. Driven by negative pressure, the gas flows towards the small end. In order to maintain energy conservation, the gas pressure at the small end decreases and the flow rate increases. This design accelerates the gas flow rate in the control box 10 and accelerates the thermal cycle. At the same time, the gas temperature at the small end is lower than that at the large end, which is also conducive to thermal convection and improves the heat dissipation and thermal cycle in the control box 10.

[0092] Furthermore, in the direction toward the inside of the component cavity 112, the inner peripheral wall of the first air inlet 13 is inclined toward the central axis of the first air inlet 13.

[0093] Optionally, the cross-section of the first air inlet 13 is circular. Of course, the present invention is not limited to this, and the cross-section of the first air inlet 13 can also be polygonal, such as quadrilateral or elliptical.

[0094] In some embodiments of this utility model, such as Figures 4-11 As shown, refer to Figure 11 As shown, the ventilation grille 2 has multiple ventilation channels 21 spaced apart along a second direction. Each ventilation channel 21 has an inlet 211 communicating with the component cavity 112 and an outlet 213 communicating with the heat dissipation cavity 111. The inlet 211 faces the second direction, and the outlet 213 faces the first direction. The inlet 211 and outlet 213 of the ventilation channel 21 are not in the same direction, which can better prevent rainwater from the fan side from entering the component cavity 112 through the ventilation grille 2, and can improve the rain resistance of the electrical control box 10.

[0095] Specifically, such as Figures 4-11 As shown, refer to Figure 11 As shown, the ventilation grille 2 includes a mounting member 22 and grille bars 23. The mounting member 22 has a mounting opening, and the grille bars 23 are disposed within the mounting opening and on the mounting member 22. Multiple grille bars 23 are spaced apart along a second direction. Ventilation channels 21 are defined between the grille bars 23 located at the edges of the second direction and the mounting member 22, as well as between two adjacent grille bars 23. Thus, multiple ventilation channels 21 can be created by multiple grille bars 23, resulting in a simpler structure. Furthermore, the ventilation grille 2 has a large air passage area, which is more conducive to the heat dissipation of the electrical control box 10.

[0096] Furthermore, such as Figure 6 and Figure 7 As shown, in a cross-section perpendicular to the vertical direction, the grid bar 23 includes a first segment 231, a second segment 232, and a third segment 233 connected sequentially. The first segment 231 and the third segment 233 are respectively connected to both ends of the second segment 232. The second segment 232 extends along a first direction, and the first segment 231 and the third segment 233 extend toward opposite sides of a second direction. An inlet 211 is defined between the end of the first segment 231 away from the second segment 232 and the end of the third segment 233 of the adjacent grid bar 23 away from the second segment 232, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23 away from the second segment 232, or between the first segment 232 and the third segment 233 of the adjacent grid bar 23 away from the second segment 232, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23, or between the first segment 231 and the third segment 233 of the adjacent grid bar 23, or between the first segment 232 ...1 and the third segment 233 of the adjacent grid bar 23, or between the first segment

[0097] Understandably, the inlet 211 of the ventilation duct 21 located between two adjacent grille bars 23 is defined between the end of the first segment 231 of one of the two adjacent grille bars 23 that is away from the second segment 232 and the end of the second segment 232 of the other that is away from the third segment 233. The outlet 213 of the ventilation duct 21 located between two adjacent grille bars 23 is defined between the end of the third segment 233 of one of the two adjacent grille bars 23 that is away from the second segment 232 and the end of the second segment 232 of the other that is away from the first segment 231. The inlet 211 of the ventilation duct 21 located at the edge of the second direction is defined between the end of the first segment 231 of the grille bar 23 located at the edge that is away from the second segment 232 and the mounting member 22. The outlet 213 is defined between the end of the third segment 233 of the grille bar 23 located at the edge that is away from the second segment 232 and the mounting member 22.

[0098] Furthermore, in the cross-section perpendicular to the vertical direction, the grid strips 23 are formed in a Z-shape, as shown in the reference. Figure 6 As shown, rainwater from the outdoor unit 100 of the air conditioner enters the fins of the radiator 52 through the air outlet 14 area. In the external environment, the rainwater flows from the direction of the heat dissipation cavity 111 towards the direction of the component cavity 112. The rainwater hits the grille strip 23, weakening the impact of the rainwater and preventing the rainwater from entering the component cavity 112 of the control box 10.

[0099] In some embodiments of this utility model, the shape of the mounting opening can be a standard quadrilateral or an irregular polygon. Figure 11 In the example shown, the mounting opening is an irregular polygon, and multiple grid strips 23 are arranged at intervals in the second direction. The multiple grid strips 23 have different height positions in the vertical direction, which can better adapt to the position of the component in the component cavity 112.

[0100] In some embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the connection between the first segment 231 and the second segment 232 is made through a transition surface 234 along the second direction towards the third segment 233. Specifically, the sides of the first segment 231 and the second segment 232 that are away from the included angle space between them are connected by the transition surface 234. In the direction from the first segment 231 to the second segment 232, the transition surface 234 includes a first arc surface, an inclined surface, and a second arc surface connected in sequence. Both the first and second arc surfaces protrude towards the side away from the included angle space between the first segment 231 and the second segment 232. This makes the connection between the first segment 231 and the second segment 232 smoother, reducing the resistance of the sharp corners between them to airflow. Driven by the negative pressure on the fan side, this facilitates airflow through the connection between the first segment 231 and the second segment 232 towards the air outlet 14.

[0101] Furthermore, such as Figure 6 and Figure 7 As shown, in the direction from component cavity 112 to heat dissipation cavity 111, the inclined surface is inclined towards the side of the second segment 232 with its thickness direction facing the third segment 233, and the angle between the inclined surface and the first direction is 10°-30°. For example, the angle between the inclined surface and the first direction is 10°, 13°, 15°, 17°, 20°, 23°, 25°, 27°, or 30°, etc. This makes the connection between the first segment 231 and the second segment 232 smoother, reduces the resistance of the sharp corner between the first segment 231 and the second segment 232 to airflow, and facilitates airflow through the connection between the first segment 231 and the second segment 232 under the drive of the negative pressure on the fan side, flowing towards the air outlet 14.

[0102] In some embodiments of this utility model, such as Figure 6 and Figure 11 As shown, the inlet 211 is equipped with reinforcing ribs 212. This increases the structural strength of the grille bars 23, thereby ensuring the structural strength of the ventilation grille 2 and its rain-proof capability. Furthermore, as... Figure 11 As shown, within the same inlet 211, there are multiple reinforcing ribs 212 spaced apart along the vertical direction. A gap is defined between adjacent reinforcing ribs 212 to facilitate airflow while ensuring the structural strength of the grille bars 23, thereby guaranteeing the structural strength of the ventilation grille 2. Specifically, the reinforcing rib 212 is connected to the end of the first segment 231 of one of two adjacent grille bars 23 that faces away from the second segment 232, and to the end of the third segment 233 of the other grille bar 23 that faces away from the second segment 232.

[0103] In some embodiments of this utility model, such as Figure 5 , Figure 9 , Figure 14 and Figure 16 As shown, at least a portion of the ventilation grille 2 is inclined towards the component cavity 112 in the vertical direction. The base plate 4 is provided with a plurality of second air inlets 41, which are located in the heat dissipation cavity 111 and at least a portion of them are opposite to the ventilation grille 2 in the vertical direction. This facilitates the provision of a plurality of second air inlets 41 on the base plate 4 of the heat dissipation cavity 111. Airflow can also enter the heat dissipation cavity 111 through the second air inlets 41 to exchange heat with the heat sink 52, thereby dissipating heat from the circuit board 51.

[0104] When the electrical control box 10 is applied to the outdoor unit 100 of the air conditioner, the second air inlet 41 can be located inside the compressor cavity 202 to avoid the risk of water entering through the second air inlet 41 when the second air inlet 41 is located on the fan cavity 201 side.

[0105] Optionally, the cross-section of the second air inlet 41 is circular. Of course, the present invention is not limited to this. The cross-section of the second air inlet 41 can also be polygonal, such as quadrilateral or elliptical.

[0106] like Figure 5 and Figure 9 As shown, the middle part of the mounting part 22 in the vertical direction is inclined towards the component cavity 112 in the vertical direction, and the corresponding part of the grille strip 23 is also inclined towards the component cavity 112 in the vertical direction, so as to ensure that the size of the inlet 211 and the outlet 213 is basically consistent in the vertical direction, which facilitates the flow of air and improves the heat dissipation effect of the electrical control box 10.

[0107] In some embodiments of this utility model, the cross-sectional area of ​​the second air inlet 41 gradually decreases in the direction toward the heat dissipation cavity 111. It can be understood that the second air inlet 41 is formed in a funnel shape. According to Bernoulli's principle, as the gas flows from the large end to the small end of the funnel, the pressure energy of the gas will gradually be converted into kinetic energy. The gas pressure at the large end is relatively high, the kinetic energy is relatively low, and the flow rate is slow. Driven by negative pressure, the gas flows toward the small end. In order to maintain energy conservation, the gas pressure at the small end decreases and the flow rate increases. This design accelerates the gas flow rate in the control box 10 and accelerates the thermal cycle. At the same time, the gas temperature at the small end is lower than that at the large end, which is also conducive to thermal convection and improves the heat dissipation and thermal cycle in the control box 10.

[0108] In some embodiments of this utility model, such as Figures 1-3 , Figure 11 , Figure 17 and Figure 21 As shown, the box 1 includes a box body 11 and a side cover 12. The box body 11 defines a heat dissipation cavity 111 and a component cavity 112. A notch 113 communicating with the component cavity 112 is provided on one side of the box body 11 along a second direction. The side cover 12 is detachably disposed at the notch 113 to seal the notch 113. At least one of the box body 11 and the side cover 12 is provided with a first air inlet 13. When the electrical control box 10 is applied to the outdoor unit 100 of an air conditioner, the notch 113 is located on the front side of the box body 11, as shown below. Figure 5 As shown, the circuit board 51 has multiple terminals near the notch 113 along the second direction. The notch 113 facilitates the connection of the compressor, motor, and other components to the terminals. The side cover 12 is detachably located at the notch 113. During wiring, the side cover 12 can be opened for easy wiring. After wiring, the side cover 12 can be placed back at the notch 113 to seal it, achieving an insect-proof effect and making the connection easy to install and remove.

[0109] In addition, at least one of the box body 11 and the side cover 12 is provided with a first air inlet 13. This can be provided only on the part of the box body 11 that constitutes the component cavity 112, or only on the side cover 12, or the part of the box body 11 that constitutes the component cavity 112 is provided with a first air inlet 13, and the side cover 12 is also provided with a first air inlet 13.

[0110] exist Figures 1-3 , Figure 11 In the example shown, the portion of the housing 11 that forms the component cavity 112 has a first air inlet 13, and the side cover 12 also has a first air inlet 13. Specifically, the side of the housing 11 facing away from the heat dissipation cavity 111 has a plurality of spaced-apart first air inlets 13, and the side cover 12 has a plurality of spaced-apart first air inlets 13.

[0111] In some embodiments of this utility model, one end of the side cover 12 along the first direction is inserted into the box body 11, and the other end is snapped into the box body 11. When connecting the side cover 12, one end of the side cover 12 along the first direction can be inserted into the box body 11 first, and then the other end of the side cover 12 along the first direction can be snapped into the box body 11. This facilitates the connection between the side cover 12 and the box body 11 and improves the reliability of the connection between the side cover 12 and the box body 11.

[0112] like Figure 6 , Figure 7 , Figure 11 , Figures 17-19 and Figure 21 As shown, the box body 11 has a slot 119 at one end of the notch 113 along the first direction. The opening of the slot 119 faces the other end of the notch 113 along the first direction. The slot 119 extends vertically, and one end of the side cover 12 along the first direction is inserted into the slot 119. The notch 113 has a first latch 17 at the end opposite to the slot 119, and the side cover 12 has a second latch 123 at the other end along the first direction. The second latch 123 is engaged with the first latch 17. The first latch 17 can be multiple latches spaced apart vertically. Figure 17 and Figure 18 In the example shown, the first buckle is two buckles spaced apart in the vertical direction, and the second buckle 123 is located at multiple locations corresponding to the multiple first buckles 17. The multiple second buckles 123 are spaced apart in the vertical direction of the side cover 12.

[0113] In some embodiments of this utility model, such as Figure 17 , Figure 21 , Figure 23As shown, the upper side of the notch 113 is open. The lower end of the lid 3, opposite to the notch 113, has an outwardly folded baffle 31 extending in a first direction. The upper end of the side cover 12 has a fixed baffle 121 bent towards the component cavity 112, extending in the first direction and resting above the baffle 31. This increases the connection between the side cover 12 and the lid 3, improving the reliability of the side cover 12's fixation. Furthermore, the cooperation of the fixed baffle 121 and the baffle 31 seals the gap on the upper side of the notch 113, improving insect prevention.

[0114] like Figure 17 As shown, the upper side of the slot 119 is open. When the side cover 12 is connected to the box body 11, one end of the side cover 12 can be slid into the slot 119 from top to bottom, so that one end of the side cover 12 is inserted into the slot 119, while the part of the fixed baffle 121 is placed above the baffle 31.

[0115] In some embodiments of this utility model, such as Figure 17 and Figure 18 As shown, a first wire-passing groove 114 is provided on the lower side wall of the notch 113, with the side of the first wire-passing groove 114 facing away from the component cavity 112 open. This allows the connecting wire to be secured within the first wire-passing groove 114, constraining and organizing the connector, and facilitating the connecting wire to pass through the notch 113 into the component cavity 112 and connect to the terminals on the circuit board 51. Furthermore, with the connecting wire located within the first wire-passing groove 114, there is no need to leave a large gap in the housing 1 for wire passage; the connecting wire essentially fills the first wire-passing groove 114, resulting in better insect prevention. The side cover 12 is located outside the first wire-passing groove 114, and the side cover 12 prevents the connecting wire from detaching from the first wire-passing groove 114.

[0116] Furthermore, such as Figure 17 and Figure 18 As shown, a retaining rib 1141 is provided at the opening of the first wire passage groove 114. One end of the retaining rib 1141 is connected to one end of the opening of the first wire passage groove 114, and the other end is spaced apart from the other end of the opening of the first wire passage groove 114. The retaining rib 1141 can prevent the connecting wire in the first wire passage groove 114 from coming out of the first wire passage groove 114, ensuring the reliability of the connecting wire's fixation. The retaining rib 1141 can be provided at one end of the opening width direction, or both ends can be provided simultaneously. When both ends are provided simultaneously, the two retaining ribs 1141 are respectively connected to the two ends of the opening and spaced apart along the width direction of the opening, allowing the connecting wire to be inserted into the first wire passage groove 114 through the gap between the two retaining ribs 1141.

[0117] In some embodiments of this utility model, such as Figure 17 and Figure 18As shown, multiple first wire guide grooves 114 are spaced apart along a first direction. This allows for the mounting of multiple connecting wires and improves the reliability of wire securing. For example, in... Figure 17 In the example shown, there are three first wire passages 114 spaced apart along the first direction. When the control box 10 is used for the outdoor unit 100 of the air conditioner, the first first wire passage 114 located at the end of the first direction can be the wire passage for the compressor wire, the first wire passage 114 located at the other end of the first direction can be the wire passage for the temperature sensing wire, and the first wire passage 114 located in the middle can be the wire passage for the motor wire.

[0118] In some embodiments of this utility model, such as Figure 11 and Figure 17 As shown, a second wire passage groove 115 is provided on the side of the box body 11 away from the heat dissipation cavity 111. The second wire passage groove 115 is located on the side of the box body 11 along the second direction near the notch 113 and is connected to the notch 113. This allows connecting wires to pass into or out of the component cavity 112 from different directions. The connecting wires are located in the second wire passage groove 115, eliminating the need for a large gap on the box body 1 for wire passage, resulting in better insect prevention. In addition, the second wire passage groove 115 is connected to the notch 113, making it easy for connecting wires to be inserted into the second wire passage groove 115. When the electrical control box 10 is used in the outdoor unit 100 of the air conditioner, the second wire passage groove 115 can be a comprehensive wire passage groove, allowing connecting wires other than those for the motor, compressor, and temperature sensing wires, such as power cords, electronic expansion valves, and sensor wires, to pass into or out of the component cavity 112 through the second wire passage groove 115.

[0119] Furthermore, such as Figure 17 and Figure 18 As shown, elastic arms 1151 are provided on opposite sides of the opening of the second wire guide groove 115. In the direction towards the inside of the wire guide groove, the two elastic arms 1151 are inclined towards each other and spaced apart. The two elastic arms 1151 secure the connecting wire within the second wire guide groove 115, preventing it from coming out. During the process of inserting the connecting wire into the second wire guide groove 115, the two elastic arms 1151 deform away from each other, facilitating the insertion of the connecting wire into the second wire guide groove 115.

[0120] exist Figure 11 and Figure 21 In the example described, the side cover 12 has a buckle 124 at one end near the second wire passage 115. After the side cover 12 is connected to the box body 11, the buckle 124 is located on the front side of the second wire passage 115 and is used to block the opening of the second wire passage 115, which can further prevent the connecting wire from coming out of the second wire passage 115.

[0121] In some embodiments of this utility model, such as Figure 21As shown, the side cover 12 has a first wire fixing clip 122. The first wire fixing clip 122 can be used to fix the connecting wire, making the connecting wire neater during routing and facilitating its insertion into or through the component cavity 112. Figure 21 In the example shown, the first fixing buckle 122 is located at one end of the side cover 12 near the second wire passage 115. The first fixing buckle 122 can be used to fix the connecting wire that passes through or out of the second wire passage 115. Of course, the first fixing buckle 122 can also be used to fix the connecting wire that passes through or out of the first wire passage 114.

[0122] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 23 As shown, the cover 3 has a first cable routing groove 32 with an open upper side on the side opposite to the heat dissipation cavity 111. The first cable routing groove 32 extends along a second direction, and a first cable-blocking buckle 33 is provided at the opening of the first cable routing groove 32. The first cable routing groove 32 is located above the first cable passage 114. The first cable routing groove 32 can be used to accommodate connecting wires that pass through or pass through the second cable passage 115, making the arrangement of connecting wires neater. The opening of the first cable routing groove 32 faces upward, and the cover 3 has a first cable-blocking buckle 33 located at the opening of the first cable routing groove 32 to prevent connecting wires in the first cable routing groove 32 from coming out of the first cable routing groove 32. The first cable-blocking buckle 33 extends along a first direction.

[0123] In some embodiments of this utility model, such as Figure 1 , Figure 9 , Figure 11 and Figure 17 As shown, the side of the housing 1 facing away from the component cavity 112 is provided with an upper-open second wiring groove 116. The second wiring groove 116 extends along a second direction, and a second wire-blocking buckle 1161 is provided at the opening of the second wiring groove 116. The second wiring groove 116 can be used to accommodate connecting wires that pass through or through the first wire-passing groove 114, such as motor wires that pass through or exit the first wire-passing groove 114, making the arrangement of connecting wires neater. The opening of the second wiring groove 116 faces upward, and the housing body 11 is provided with a second wire-blocking buckle 1161. The second wire-blocking buckle 1161 is located at the opening of the second wiring groove 116 and is used to prevent the connecting wires in the second wiring groove 116 from coming out of the second wiring groove 116. The second wire-blocking buckle 1161 extends along a first direction.

[0124] In some embodiments of this utility model, such as Figure 1 , Figure 17 , Figure 19 and Figure 20As shown, the box body 1 has an assembly portion 117 on one side along the second direction. The assembly portion 117 and the notch 113 are located on the same side of the box body 11, that is, the assembly portion 117 and the side cover 12 are located on the same side of the box body 11. The bottom plate 4 has an upwardly extending mounting portion 42 at one end along the second direction, and the mounting portion 42 is connected to the assembly portion 117. For example, the mounting portion 42 and the assembly portion 117 can be snapped together. This can improve the reliability of the connection between the bottom plate and the box body 11.

[0125] Furthermore, such as Figure 19 and Figure 20 As shown, the mounting part 42 is provided with a third buckle 43, and the assembly part 117 is provided with a fourth buckle 1172. The third buckle 43 and the fourth buckle 1172 are connected by a snap-fit.

[0126] In some embodiments of this utility model, such as Figure 17 and Figure 19 As shown, the assembly part 117 has a second wire fixing clip 1171. The second wire fixing clip 1171 can be used to fix the connecting wire, making the connecting wire neater during the wiring process and facilitating the connecting wire to pass through or into the component cavity 112. Figure 17 In the example shown, the second fixing buckle 1171 is located on the side of the assembly part 117 facing the notch 113. The second fixing buckle 1171 can be used to fix the connecting wire, such as the motor wire, that passes through or exits the first wire groove 114.

[0127] exist Figure 17 In the example shown, when the electrical control box 10 is used for the outdoor unit 100 of the air conditioner, the connecting wire of the motor used to drive the fan rotation passes through the second wiring channel 116, the second fixing wire buckle 1171, and one of the first wiring channels 114 in sequence into the component cavity 112. The second fixing wire buckle 1171 can hold the motor wire in the buckle, so that the motor wire is aligned and placed in advance, without affecting the subsequent operation of closing the side cover 12.

[0128] In some embodiments of this utility model, such as Figure 4 and Figure 17 As shown, a downward-extending rain baffle 15 is provided on the side of the housing 1 facing away from the component cavity 112. The rain baffle 15 extends in a second direction, and an air outlet 14 is defined between the lower end of the rain baffle 15 and the bottom plate 4. When the electrical control box 10 is used inside the outdoor unit 100 of the air conditioner, the rain baffle 15 is located inside the fan cavity 201, which can prevent rainwater entering the fan cavity 201 from entering the radiator 52 and then entering the component cavity 112 through the ventilation grille 2, thereby improving the reliability of the electrical control box 10.

[0129] In some embodiments of this utility model, such as Figure 4 and 9As shown, a heat dissipation channel 118 is provided on the side of the housing 1 facing away from the component cavity 112. The upper side of the heat dissipation channel 118 is open and extends along the second direction. The end of the cover 3 facing away from the component cavity 112 is fitted into the heat dissipation channel 118. Part of the heat generated by the circuit board assembly 5 is discharged from the air outlet 14 through the heat sink 52, and part of the heat is accumulated on the upper part of the cover 3. This part of the heat can be naturally dissipated through the heat dissipation channel, accelerating the thermal cycle of the control box 10.

[0130] In some embodiments of this utility model, such as Figure 17 and Figure 22 As shown, the lid 3 is snap-fitted to the body 1, which simplifies the connection between the lid 3 and the body 1 and improves the reliability of the connection. Figure 12 In the example shown, the lid 3 has a plurality of fifth buckles 34 extending toward the body 1, and the body 1 has a plurality of sixth buckles 18, with the plurality of fifth buckles 34 being engaged with the plurality of sixth buckles 18 respectively.

[0131] exist Figure 22 In the example shown, multiple fifth clips 34 are spaced apart along the circumferential direction of the cover 3, and correspondingly, sixth clips 18 are spaced apart along the circumferential direction of the box body 1. The sixth clip 18 located at one end of the box body 1 in the first direction engages with the fifth clips 34 to ensure a tight fit. Without these clips, numerous wires on the right side of the control box 10 would pull down the box body 1, causing it to separate from the cover 3, which would greatly affect the subsequent action of fastening the side cover 12.

[0132] In some embodiments of this utility model, the box body 1 and the base plate 4 are snap-fitted together, which simplifies the connection method between the box body 1 and the base plate 4 and improves the reliability of the connection between them. Figure 12 ... Figure 15 , Figure 17 and Figure 20 In the example shown, the base plate 4 has a seventh latch 45, and the box body 1 has an eighth latch 19. The seventh latch 45 and the eighth latch 19 are connected by a snap-fit ​​mechanism. There are multiple seventh latches 45 spaced apart, and multiple eighth latches 19 are located corresponding to the multiple seventh latches 45. The connection between the seventh latch 45 and the eighth latch 19 at the first end of the box body 1 prevents deformation of the base plate 4, thus preventing assembly gaps between it and the box body 1. Simultaneously, snapping them together effectively avoids abnormal noise caused by resonance.

[0133] In some embodiments of this utility model, such as Figure 12 , Figure 13 and Figure 20As shown, the box body 1 has an assembly protrusion 16, and the base plate 4 has an assembly hole 44 that mates with the assembly protrusion 16. After the base plate 4 and the box body 1 are assembled, the assembly protrusion 16 is located in the assembly hole 44. By observing whether the assembly protrusion 16 and the assembly hole 44 are properly matched, it can be determined whether the base plate 4 is properly assembled, which is convenient for detecting whether the base plate 4 is properly assembled.

[0134] Optionally, the base plate 4 is a fireproof sheet metal part. This can prevent the fire from spreading to the compressor cavity 202 after the electrical control box 10 malfunctions and catches fire, or prevent the fire from spreading to the electrical control box 10 after the compressor cavity 202 malfunctions and catches fire.

[0135] The following describes an outdoor air conditioning unit 100 according to an embodiment of the present invention.

[0136] like Figure 24 As shown, the outdoor unit 100 of the air conditioner according to an embodiment of the present utility model includes a housing 20, a partition 30 and the aforementioned electrical control box 10.

[0137] Specifically, such as Figure 24 As shown, a partition 30 is disposed within the housing 20 to divide the housing 20 into a fan chamber 201 and a compressor chamber 202 arranged along a first direction, which can be the left-right direction of the outdoor unit 100. An electrical control box 10 is disposed above the partition 30, with at least a portion of the heat dissipation cavity 111 located within the fan chamber 201 and the component cavity 112 located within the compressor chamber 202.

[0138] The fan chamber 201 houses a fan assembly 40, which includes a fan and a motor that drives the fan. A motor bracket 50 is also located within the fan chamber 201, with the motor mounted on it. The compressor is located within the compressor chamber 202. When the fan rotates at high speed, a negative pressure is created on the side of the fan chamber 201. This negative pressure carries away heat from the inside of the electrical control box 10 and the compressor chamber 202, achieving air-cooling.

[0139] According to the embodiment of this utility model, the outdoor unit 100 of the air conditioner, by setting the aforementioned electrical control box 10, allows the upper and lower sides of the box body 1 to be open. The upper side is covered by the box cover 3, and the lower side is sealed by a bottom plate, which can provide comprehensive protection for the electrical control box 10 and achieve the purpose of insect prevention. In addition, a ventilation grille 2 is set inside the box body 1 to divide the space inside the box body 1 into a heat dissipation cavity 111 and a component cavity 112 arranged along a first direction. Multiple first air inlets 13 are set on the part of the box body 1 that constitutes the component cavity 112. An air outlet 14 communicating with the heat dissipation cavity 111 is defined between the bottom plate 4 and the box body 1. This allows airflow to enter the component cavity 112 through the first air inlets 13, then enter the heat dissipation cavity 111 through the ventilation grille 2, and finally be discharged from the air outlet 14, achieving the effect of ventilation and ensuring the heat dissipation effect of the electrical controller.

[0140] In some embodiments of this utility model, such as Figure 24 As shown, an installation port is provided above the partition 30, and the electrical control box 10 is located inside the installation port. A sealing protective component is provided between the electrical control box 10 and the inner wall of the installation port. This prevents rainwater from entering the compressor cavity 202 through the gap between the electrical control box 10 and the partition 30, ensuring the reliability of the outdoor unit 100 of the air conditioner.

[0141] Alternatively, the sealing element can be a protective sponge.

[0142] In some embodiments of this utility model, reference is made to Figure 23 and Figure 24 As shown, the cover 3 is provided with a partition buckle 35 that engages with the middle partition 30. The middle partition 30 has a snap-fit ​​part, and the partition buckle 35 on the cover 3 is snapped onto the snap-fit ​​part from top to bottom, realizing the connection between the electrical control box 10 and the middle partition 30, and ensuring the reliability of the electrical control box 10.

[0143] The following describes an air conditioner according to an embodiment of the present invention.

[0144] According to the embodiment of this utility model, the air conditioner, by setting the above-mentioned outdoor unit 100, which includes the above-mentioned electrical control box 10, allows the upper and lower sides of the box body 1 to be open. The upper side is covered by the box cover 3, and the lower side is sealed by the bottom plate, which can provide comprehensive protection for the electrical control box 10 and achieve the purpose of insect prevention. In addition, a ventilation grille 2 is set inside the box body 1 to divide the space inside the box body 1 into a heat dissipation cavity 111 and a component cavity 112 arranged along a first direction. Multiple first air inlets 13 are set on the part of the box body 1 that constitutes the component cavity 112. An air outlet 14 communicating with the heat dissipation cavity 111 is defined between the bottom plate 4 and the box body 1. Airflow can enter the component cavity 112 through the first air inlets 13, then enter the heat dissipation cavity 111 through the ventilation grille 2, and finally be discharged from the air outlet 14, achieving the effect of ventilation and ensuring the heat dissipation effect of the electrical controller.

[0145] Other components of the air conditioner according to the embodiments of the present invention, such as the indoor unit and its operation, are known to those skilled in the art and will not be described in detail here.

[0146] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0147] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electrical control box, characterized in that, include: The box body has an open upper and lower side, and a ventilation grille inside the box body for dividing the internal space of the box body into heat dissipation cavities and component cavities arranged along a first direction. The ventilation grille extends along a second direction. The portion of the box body that forms the component cavity has a plurality of first air inlets communicating with the component cavity. The first direction, the second direction, and the up and down direction are perpendicular. A lid, which is placed on the upper side of the box body to seal the open opening on the upper side of the box body; A base plate is provided on the lower side of the housing to block the lower opening of the component cavity and part of the lower opening of the heat dissipation cavity. An air outlet communicating with the heat dissipation cavity is defined between the base plate and the housing.

2. The electrical control box according to claim 1, characterized in that, In the direction toward the inside of the component cavity, the cross-sectional area of ​​the first air inlet gradually decreases.

3. The electrical control box according to claim 1, characterized in that, The ventilation grille has a plurality of ventilation channels spaced apart along the second direction. Each ventilation channel has an inlet communicating with the component cavity and an outlet communicating with the heat dissipation cavity. The inlet faces the second direction, and the outlet faces the first direction.

4. The electrical control box according to claim 3, characterized in that, The ventilation grille includes: Installation components; A grille strip is disposed on the mounting member. The grille strip is a plurality of strips spaced apart along the second direction. The ventilation duct is defined between the grille strip located at the edge of the second direction and the mounting member, as well as between two adjacent grille strips.

5. The electrical control box according to claim 4, characterized in that, In a cross-section perpendicular to the vertical direction, the grid strip comprises a first segment, a second segment, and a third segment connected in sequence. The first segment and the third segment are respectively connected to both ends of the second segment. The second segment extends along the first direction, and the first segment and the third segment extend toward opposite sides of the second direction. The inlet is defined between the end of the first segment away from the second segment and the end of the third segment of the adjacent grille bar away from the second segment or between the third segment and the mounting member; the outlet is defined between the end of the second segment away from the first segment and the end of the third segment of the adjacent grille bar away from the second segment or between the mounting member.

6. The electrical control box according to claim 5, characterized in that, The first segment and the second segment are connected by a transition surface along the second direction toward the third segment. In the direction from the first segment to the second segment, the transition surface includes a first arc surface, an inclined surface, and a second arc surface.

7. The electrical control box according to claim 6, characterized in that, The angle between the inclined surface and the first direction is 10°-30°.

8. The electrical control box according to claim 3, characterized in that, The inlet is equipped with reinforcing ribs.

9. The electrical control box according to claim 1, characterized in that, Along the vertical direction, at least a portion of the ventilation grille is inclined toward the component cavity from top to bottom, and the base plate is provided with a plurality of second air inlets, which are located in the heat dissipation cavity and are at least partially opposite to the ventilation grille in the vertical direction.

10. The electrical control box according to claim 1, characterized in that, The housing includes: The box body defines the heat dissipation cavity and the component cavity, and a notch communicating with the component cavity is provided on one side of the box body along the second direction; A side cover is detachably disposed at the notch to seal the notch, and at least one of the box body and the side cover is provided with the first air inlet.

11. The electrical control box according to claim 10, characterized in that, One end of the side cover along the first direction is inserted into the box body, and the other end is snapped into the box body.

12. The electrical control box according to claim 10, characterized in that, The upper side of the notch is open, and the lower end of the box cover opposite to the notch is provided with an outwardly folded edge. The edge extends along the first direction. The upper end of the side cover is provided with a fixed baffle that bends toward the cavity of the component. The fixed baffle extends along the first direction and rests above the edge.

13. The electrical control box according to claim 10, characterized in that, A first wire guide groove is provided on the lower side wall of the notch, and the side of the first wire guide groove facing away from the component cavity is open.

14. The electrical control box according to claim 13, characterized in that, A baffle is provided at the opening of the first wire passage groove. One end of the baffle is connected to one end of the opening of the first wire passage groove, and the other end is spaced apart from the other end of the opening of the first wire passage groove.

15. The electrical control box according to claim 13, characterized in that, The first wire groove is a plurality of grooves spaced apart along the first direction.

16. The electrical control box according to claim 10, characterized in that, The side cover has a first fixing buckle.

17. The electrical control box according to claim 10, characterized in that, A second wire passage groove is provided on the side of the box body away from the heat dissipation cavity. The second wire passage groove is located on the side of the box body close to the notch along the second direction and is in communication with the notch.

18. The electrical control box according to claim 17, characterized in that, The second wire guide groove has elastic arms on opposite sides of its opening. In the direction toward the inside of the wire guide groove, the two elastic arms are inclined toward each other and spaced apart.

19. The electrical control box according to claim 1, characterized in that, The cover has a first cable routing groove with an open top on the side opposite to the heat dissipation cavity. The first cable routing groove extends along the second direction, and a first cable blocking buckle is provided at the opening of the first cable routing groove.

20. The electrical control box according to claim 1, characterized in that, The box body has a second wiring groove with an open top on the side opposite to the component cavity. The second wiring groove extends along the second direction, and a second wire-blocking buckle is provided at the opening of the second wiring groove.

21. The electrical control box according to claim 1, characterized in that, The box body has an assembly part on one side along the second direction, and the bottom plate has an upwardly extending mounting part at one end along the second direction, and the mounting part is connected to the assembly part.

22. The electrical control box according to claim 21, characterized in that, The assembly part has a second fixing buckle.

23. The electrical control box according to claim 1, characterized in that, The box body has a downwardly extending rain baffle on the side opposite to the component cavity. The rain baffle extends along the second direction, and the air outlet is defined between the lower end of the rain baffle and the bottom plate.

24. The electrical control box according to claim 1, characterized in that, The box body has a heat dissipation channel on the side opposite to the component cavity. The upper side of the heat dissipation channel is open and extends along the second direction. The end of the box cover opposite to the component cavity is fitted into the heat dissipation channel.

25. The electrical control box according to claim 1, characterized in that, The lid is snapped into the box body; And / or, the box body is snapped into connection with the base plate; And / or, the housing has mounting protrusions, and the base plate has mounting holes that mate with the mounting protrusions; And / or, the base plate is a fireproof sheet metal part.

26. An outdoor unit for an air conditioner, characterized in that, include: case; A partition plate, which is disposed inside the housing, is used to divide the housing into a fan chamber and a compressor chamber arranged along the first direction; The electrical control box according to any one of claims 1-25 is disposed above the partition plate, at least a portion of the heat dissipation cavity is located within the fan cavity, and the component cavity is located within the compressor cavity.

27. The outdoor unit of the air conditioner according to claim 26, characterized in that, An installation port is provided above the partition plate, the electrical control box is located inside the installation port, and a sealing and protective component is provided between the electrical control box and the inner wall of the installation port.

28. The outdoor unit of the air conditioner according to claim 26, characterized in that, The box lid is provided with a partition buckle that engages with the middle partition.

29. An air conditioner, characterized in that, Includes an outdoor air conditioning unit according to any one of claims 26-28.

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