Electric control box assembly and air conditioner outdoor unit

Abstract

The invention discloses an electric control box assembly and an air conditioner outdoor unit, and the electric control box assembly comprises a housing which is internally provided with a containing cavity used for containing electrical components; the electrical bracket is arranged in the accommodating cavity and is suitable for supporting the electrical component; the heat dissipation pipeline is arranged on the electrical support, and a cooling medium circulates in the heat dissipation pipeline so as to be suitable for heat exchange of the containing cavity; wherein a ventilation hole for communicating the accommodating cavity with the outside is formed in the shell. According to the electric control box assembly, the heat dissipation performance is improved, and the use safety of electrical components is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of air conditioners, and in particular to an electric control box component and an air conditioner outdoor unit. Background Art

[0002] The technical solution of the refrigerant electronic control of the existing air conditioner can be briefly described as follows: each chip is completely fitted with the aluminum substrate, and the heat in the aluminum substrate is taken away by the copper tube embedded in the aluminum substrate. During the operation of the air conditioner outdoor unit, the refrigerant flows in the copper tube and exchanges heat with the entire system. The refrigerant is at a lower temperature before flowing through the electronic control box, and the heat of the aluminum substrate is absorbed by the embedded U-shaped copper tube. With the development of air conditioners, electronic control components tend to be miniaturized and integrated. Under the same power, the heat generated by each component in the electronic control box has remained high. The original solution can no longer meet the heat dissipation requirements of the electronic control box components. As the structure of the electronic control box components becomes smaller, the difficulty of assembling the electronic control components becomes greater. How to ensure the heat dissipation performance of the electronic control box components and improve the assembly efficiency of the electronic control box has become an urgent problem to be solved in this field. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an electric control box assembly. The electric control box assembly according to the present invention improves the heat dissipation performance and ensures the safety of the use of electrical components.

[0004] The present invention also provides an air conditioner outdoor unit having the electric control box assembly.

[0005] The electric control box assembly according to the present invention comprises: a shell, in which a housing cavity for accommodating electrical components is formed; an electrical bracket, which is arranged in the housing cavity and is suitable for supporting the electrical components; a heat dissipation pipeline, which is arranged on the electrical bracket and in which a cooling medium flows so as to be suitable for heat exchange in the housing cavity; wherein a ventilation hole is formed on the shell to connect the housing cavity with the outside.

[0006] The electric control box assembly according to the present invention arranges the electrical components and the electrical bracket opposite to each other, so that the cooling medium flowing in the heat dissipation pipeline on the electrical bracket can take away the heat generated by the electrical components and control the temperature of the electrical components within a safe range. At the same time, ventilation holes are formed on the shell to connect the accommodating cavity with the outside. The high-temperature gas generated by the electrical components can be discharged through the ventilation holes, thereby further improving the heat dissipation performance of the electric control box assembly and ensuring the safe use of the electric control box assembly.

[0007] According to one embodiment of the present invention, a first side wall is provided on the shell, and the ventilation hole is provided on the first side wall. The electric control box assembly also includes: a baffle, which is spaced apart from the first side wall and is provided between the electrical bracket and the first side wall, and the baffle is directly opposite to the ventilation hole.

[0008] According to one embodiment of the present invention, the shell includes: a lower shell, the lower shell encloses the accommodating cavity, and the electrical bracket is arranged on the lower shell; an upper shell, the upper shell is arranged on the lower shell, and the electrical components are arranged on the upper shell; wherein the baffle is arranged on the upper shell and / or the lower shell, the first side wall is formed on the lower shell, the baffle is spaced apart from the first side wall and an air supply channel is formed between the baffle and the first side wall, and an air supply gap is formed between the free end of the baffle and the lower shell.

[0009] According to one embodiment of the present invention, the baffle includes: a first baffle, the first baffle is arranged on the lower shell, a surface of the first baffle facing the first side wall is formed with an air guide protrusion, and the air guide protrusion is arranged on a side of the first baffle away from the air supply gap.

[0010] According to an embodiment of the present invention, hook portions are provided on both sides of the first baffle in the width direction, and first matching holes matching with the hook portions are formed on the housing.

[0011] According to an embodiment of the present invention, a plurality of supporting feet connected to the lower shell and spaced apart from each other are provided at the edge of the first baffle, and the air supply gap is defined between two adjacent supporting feet.

[0012] According to one embodiment of the present invention, the baffle further includes: a second baffle, which is connected to the upper shell and extends toward the lower shell, and the second baffle is arranged on a side of the first baffle away from the first side wall, and the second baffle closes the gap between the first baffle and the upper shell.

[0013] According to an embodiment of the present invention, an assembly gap suitable for accommodating at least a portion of the edge of the lower shell is formed between the second baffle and the edge of the upper shell.

[0014] According to one embodiment of the present invention, a circuit board mounting groove is formed on the surface of the upper shell facing the lower shell; the electrical component includes: a substrate, which is accommodated in the circuit board mounting groove; a chip mounting portion, which is arranged on the substrate and opposite to the electrical bracket, and a chip mounting groove suitable for accommodating the chip is formed in the chip mounting portion.

[0015] According to one embodiment of the present invention, an avoidance groove suitable for avoiding the chip is provided on the periphery of the chip mounting portion, and the avoidance groove is open in a direction away from the substrate. A stop protrusion is formed on the electrical bracket, and the stop protrusion stops with the open end of the avoidance groove and closes the open mouth of the avoidance groove.

[0016] According to one embodiment of the present invention, the electrical bracket includes: a main body portion, on which is formed a support surface that is directly opposite to the electrical component, and on which is provided a receiving groove suitable for accommodating the heat dissipation pipeline; a buckle portion, which is arranged at both ends of the main body portion in the length direction, and each of the buckle portions is formed with a buckle groove suitable for limiting the escape of the heat dissipation pipeline.

[0017] According to one embodiment of the present invention, the buckle portion includes: an extension plate, which is arranged at both ends of the main body portion in the length direction and is provided with a step surface parallel to the support surface; a first arm and a second arm, the first arm and the second arm are respectively arranged on the step surface and extend in a direction perpendicular to the step surface, and the buckle groove is defined between the first arm and the second arm and is opposite to the receiving groove in the extension direction, and the free end of the first arm and the free end of the second arm are respectively formed with limiting protrusions protruding toward each other.

[0018] According to one embodiment of the present invention, a bend support portion is provided at one end of the main body portion, an arc groove suitable for cooperating with the bending section of the heat dissipation pipeline is formed on the bend support portion, and the bend support portion is provided on a side of the buckle portion away from the main body portion.

[0019] According to an embodiment of the present invention, a limiting rib is protruded along the outer periphery of the supporting surface in the same extending direction as the receiving groove.

[0020] According to one embodiment of the present invention, a supporting and fixing foot is provided at the bottom of the main body, and the supporting and fixing foot is constructed into a plurality of feet and are respectively arranged at intervals on both sides of the width direction of the main body, and the supporting and fixing foot extends toward the lower shell and forms a clamping protrusion at the end of the supporting and fixing foot, and a clamping hole cooperating with the clamping protrusion is formed on the lower shell.

[0021] The outdoor unit of the air conditioner according to the present invention is briefly described below.

[0022] The air conditioner outdoor unit according to the present invention comprises an outer shell, an electric control box assembly as described in any one of the above embodiments, and fan blades. The electric control box assembly is accommodated in the outer shell, and fan blades are rotatably arranged in the outer shell. At least a part of the fan blades is directly opposite to the ventilation holes of the electric control box assembly. When the outdoor unit rotates, it drives air circulation and generates negative pressure outside the ventilation holes. The negative pressure generated by the fan blades can drive the high-temperature air in the electric control box assembly to circulate. The high-temperature air in the electric control box assembly flows through the air supply gap and the air supply channel and is discharged from the ventilation holes, thereby achieving heat dissipation of the electric control box assembly. According to the present invention, the air conditioner outdoor unit discharges the high-temperature air in the electric control box assembly by arranging fan blades, thereby achieving heat dissipation of the electric control box assembly. In conjunction with the heat dissipation pipeline in the electric control box assembly, the heat dissipation effect of the electric control box assembly is further improved, thereby ensuring the safe use of the electric control box assembly.

[0023] According to one embodiment of the present invention, the air conditioner outdoor unit also includes: a partition, which is arranged in the outer shell and divides the outer shell into a first cavity and a second cavity, the fan blade is arranged in the first cavity, at least a part of the electric control box assembly is arranged in the second cavity, and the partition is provided with a limiting notch that cooperates with the electric control box assembly.

[0024] According to an embodiment of the present invention, the partition is provided with a first positioning member, and the shell is provided with a second positioning member, and the first positioning member and the second positioning member are snap-fitted with each other.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is an overall cross-sectional view of an electric control box assembly according to an embodiment of the present invention;

[0028] Figure 2 is an overall assembly diagram of an electric control box assembly according to an embodiment of the present invention;

[0029] Figure 3 is a structural diagram of an upper housing of an electric control box assembly according to an embodiment of the present invention;

[0030] Figure 4 is a structural diagram of a lower housing of an electric control box assembly according to an embodiment of the present invention;

[0031] Figure 5 is a structural diagram of a first baffle of an electric control box assembly according to an embodiment of the present invention;

[0032] Figure 6 is an assembly diagram of a first baffle and a lower housing of an electric control box assembly according to an embodiment of the present invention;

[0033] Figure 7 is a structural diagram of an electrical support of an electric control box assembly according to an embodiment of the present invention;

[0034] Figure 8 is a side view of an electrical bracket of an electric control box assembly according to one embodiment of the present invention;

[0035] Fig. 9 is an assembly diagram of an upper housing and a lower housing of an electric control box assembly according to an embodiment of the present invention;

[0036] Fig.10 is an assembly diagram of a lower housing and electrical components of an electric control box assembly according to an embodiment of the present invention;

[0037] Fig.11 The figure is an assembly diagram of the lower housing and electrical components of an electric control box assembly according to an embodiment of the present invention.

[0038] Reference numerals:

[0039] Electric control box assembly 1;

[0040] Upper shell 111, assembly gap 1111, first buckle 1112, first protrusion 1113, lower shell 112, ventilation hole 1121, air supply gap 1122, air supply channel 1123, first matching hole 1124, snap-fit ​​hole 1125, limit buckle 1126, first slot 1127, accommodating chamber 113;

[0041] The electrical bracket 12, the stop convex portion 121, the main body 122, the receiving groove 1221, the elbow support portion 1222, the supporting and fixing foot 1223, the clamping protrusion 12231, the buckle portion 123, the buckle groove 1231, the extension plate 1232, the first arm 12331, the second arm 12332, the limiting protrusion 12333, and the limiting retaining edge 124;

[0042] Heat dissipation pipeline 13;

[0043] The first baffle 141, the air guide protrusion 1411, the hook portion 1412, the support leg portion 1413, the first connection hole 14131, and the second baffle 142;

[0044] Base plate 151, chip mounting portion 152, avoidance groove 1521, chip 153, screw retaining edge 154, circuit board 155;

[0045] The second positioning member 16 . DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] The technical solution of the refrigerant electronic control of the existing air conditioner can be briefly described as follows: each chip is completely fitted with the aluminum substrate, and the heat in the aluminum substrate is taken away by the copper tube embedded in the aluminum substrate. During the operation of the air conditioner outdoor unit, the refrigerant flows in the copper tube and exchanges heat with the entire system. The refrigerant is at a lower temperature before flowing through the electronic control box, and the heat of the aluminum substrate is absorbed by the embedded U-shaped copper tube. With the development of air conditioners, electronic control components tend to be miniaturized and integrated. Under the same power, the heat generated by each component in the electronic control box has remained high. The original solution can no longer meet the heat dissipation requirements of the electronic control box components. As the structure of the electronic control box components becomes smaller, the difficulty of assembling the electronic control components becomes greater. How to ensure the heat dissipation performance of the electronic control box components and improve the assembly efficiency of the electronic control box has become an urgent problem to be solved in this field.

[0048] Reference below Figure 1-Figure 11 An electric control box assembly 1 according to an embodiment of the present invention is described.

[0049] According to the present invention, the electric control box assembly 1 includes a shell, an electrical bracket 12 and a heat dissipation pipeline 13, wherein a receiving cavity 113 for receiving electrical components is formed in the shell; the electrical bracket 12 is arranged in the receiving cavity 113 and is suitable for supporting the electrical components; the heat dissipation pipeline 13 is arranged in the electrical bracket 12, and a cooling medium flows in the heat dissipation pipeline 13 so as to be suitable for heat exchange in the receiving cavity 113; wherein a ventilation hole 1121 is formed on the shell to connect the receiving cavity 113 with the outside.

[0050] Specifically, a housing cavity 113 is formed in the housing, and the electrical components are accommodated in the housing cavity 113. An electrical bracket 12 and a heat dissipation pipeline 13 are also provided in the housing cavity 113. The electrical bracket 12 is used to support the electrical components and cool and dissipate the heat of the electrical components. The heat dissipation pipeline 13 is provided on the electrical bracket 12. A cooling medium flows through the heat dissipation pipeline 13. The low-temperature cooling medium flows through the heat dissipation pipeline 13 and takes away the heat of the electrical components, thereby cooling the electrical components, thereby dissipating the heat of the housing cavity 113, and on the housing A ventilation hole 1121 is formed to connect the accommodating cavity 113 with the outside. The heat in the accommodating cavity 113 can be discharged through the ventilation hole 1121. The present application dissipates heat to the electrical components in the shell through the cooling medium flowing in the heat dissipation pipeline 13. The hot air in the accommodating cavity 113 can form a hot air flow and be discharged from the ventilation hole 1121. Liquid cooling is combined with air cooling to ensure cooling and heat dissipation of the electrical components in the electric control box assembly 1, so as to control the temperature in the accommodating cavity 113 at a safe level and ensure the smooth operation of the electric control box assembly 1.

[0051] Among them, the electrical components may include components such as a chip 153, an electrolytic capacitor, a circuit board 155 and a common-mode inductor. The chip 153 is constructed in plurality, and the plurality of chips 153 are respectively opposite to the heat dissipation duct 13 on the electrical bracket 12. The cooling medium flowing in the heat dissipation duct 13 can realize cooling of the chip 153, but the prior art has poor heat dissipation effect on other electrical components such as electrolytic capacitors and common-mode inductors. In the present application, a ventilation hole 1121 is provided on the shell to connect the accommodating cavity 113 with the outside. The ventilation hole 1121 can be constructed as a horizontal waist-shaped ventilation hole 1121 or as a longitudinal ventilation hole 1121. The ventilation hole 1121 is constructed in plurality, and the plurality of ventilation holes 1121 are spaced apart in the shell to increase the ventilation area. The hot air in the accommodating cavity 113 can be better discharged from the ventilation hole 1121, thereby improving the heat dissipation effect of the electrical control box assembly 1.

[0052] According to the electric control box assembly 1 of the present invention, by arranging the electrical components opposite to the electrical bracket 12, it is convenient for the cooling medium flowing in the heat dissipation pipeline 13 on the electrical bracket 12 to take away the heat generated by the electrical components, and the temperature of the electrical components is controlled within a safe range. At the same time, a ventilation hole 1121 is formed on the shell to connect the accommodating cavity 113 with the outside. The high-temperature gas generated by the electrical components can be discharged through the ventilation hole 1121, thereby further improving the heat dissipation performance of the electric control box assembly 1 and ensuring the safe use of the electric control box assembly 1.

[0053] According to one embodiment of the present invention, a first side wall is provided on the shell, and a ventilation hole 1121 is provided on the first side wall. The electric control box assembly 1 also includes a baffle, which is spaced apart from the first side wall and is arranged between the electrical bracket 12 and the first side wall, and the baffle is directly opposite to the ventilation hole 1121.

[0054] Specifically, a first side wall is provided on the shell, and a ventilation hole 1121 is provided on the first side wall. The ventilation hole 1121 can be a horizontal waist-shaped ventilation hole 1121 or a vertical ventilation hole 1121. The ventilation hole 1121 is constructed as a plurality of ventilation holes and is spaced apart on the first side plate, so as to increase the ventilation area, facilitate the discharge of hot air in the accommodating cavity 113, and improve the heat dissipation performance. Shutters can be provided on the ventilation holes 1121 to adjust the air outlet direction. Since a plurality of ventilation holes 1121 are provided on the first side plate, the ventilation capacity is increased, and rainwater on rainy days can enter the accommodating cavity 113 more easily, and once the electrical appliances in the accommodating cavity 113 are In the event of a short circuit or fire in a component, the flames and black smoke may burn the electrical control box and cause a fire. Therefore, the present application sets a baffle between the first side wall and the electrical bracket 12. The baffle and the first side wall are spaced apart, and the baffle and the ventilation hole 1121 are directly opposite to each other. External rainwater enters the accommodating cavity 113 through the ventilation hole 1121 and will be blocked by the baffle, thereby preventing the electrical components from being wetted by rainwater and causing a short circuit, etc., thereby ensuring the safe use of the electrical control box assembly 1. At the same time, when a short circuit or fire occurs in the electrical components in the accommodating cavity 113, the flames and black smoke are blocked by the baffle and cannot spread to the outside through the ventilation hole 1121, thereby reducing losses.

[0055] According to one embodiment of the present invention, the shell includes a lower shell 112 and an upper shell, the lower shell 112 encloses a accommodating cavity 113, and the electrical bracket 12 is arranged on the lower shell 112; the upper shell is arranged on the lower shell 112, and electrical components are arranged on the upper shell; wherein the baffle is arranged on the upper shell and / or the lower shell 112, and a first side wall is formed on the lower shell 112, the baffle is spaced apart from the first side wall and an air supply channel 1123 is formed between the baffle and the first side wall, and an air supply gap 1122 is formed between the free end of the baffle and the lower shell 112.

[0056] Specifically, the shell is composed of an upper shell and a lower shell 112, and a accommodating cavity 113 is formed in the lower shell 112. The ventilation hole 1121 is arranged in the lower shell 112, and the electrical components are arranged in the upper shell, wherein the electrical components may include components such as a circuit board 155, a chip 153, and an electrolytic capacitor. The circuit board 155 and other electrical components can be fixed to the upper shell by bolts to ensure a stable connection between the electrical components and the upper shell. After the electrical components are fixedly connected to the upper shell, the upper shell and the lower shell 112 can be connected by snap-fitting, which facilitates the assembly between the upper shell and the lower shell 112. An electrical bracket 12 is arranged in the lower shell 112, and the position of the electrical bracket 12 and the chip 153 can be directly opposite in the height direction. The heat dissipation pipeline 13 on the electrical bracket 12 is close to the position of the chip 153, which is conducive to quickly cooling the chip 153 through the cooling medium flowing in the heat dissipation pipeline 13, wherein a baffle can be arranged on the upper shell, the baffle It can also be arranged on the lower shell 112. The installation position of the baffle must meet the requirements that the baffle is spaced apart from the first side wall and the baffle is directly opposite to the ventilation hole 1121. An air supply channel 1123 is formed between the first side wall and the baffle, and an air supply gap 1122 is formed between the free end of the baffle and the lower shell 112. The high-temperature airflow in the accommodating chamber 113 can flow through the air supply gap 1122, through the air supply channel 1123, and be discharged from the ventilation hole 1121, thereby achieving cooling of the electrical components in the accommodating chamber 113. By forming the air supply channel 1123 between the baffle and the first side wall, the high-temperature gas in the accommodating chamber 113 can circulate through the air supply channel 1123 and be discharged from the ventilation hole 1121. The air supply holes are constructed in multiple numbers, which increases the gas flow area, improves the heat dissipation efficiency, and cooperates with the heat dissipation pipeline 13 to cool the electrical components, thereby ensuring that the temperature in the accommodating chamber 113 is maintained within a safe range and the electrical control box assembly 1 works safely.

[0057] According to one embodiment of the present invention, the baffle includes a first baffle 141, which is disposed on the lower shell 112, and a wind guide protrusion 1411 is formed on the surface of the first baffle 141 facing the first side wall, and the wind guide protrusion 1411 is disposed on a side of the first baffle 141 away from the air supply gap 1122.

[0058] Specifically, the structure of the first baffle 141 is as follows: Figure 5 As shown, the first baffle 141 and the lower housing 112 are structured as shown in FIG. Figure 6As shown, the first baffle plate 141 is spaced apart from the first side wall, an air supply gap 1122 is formed on the side of the first baffle plate 141 facing the lower shell 112, an air supply channel 1123 is formed between the first baffle plate 141 and the first side wall, and an air supply channel 1123 is formed on the surface of the first baffle plate 141 facing the first side wall. The high-temperature air in the accommodating cavity 113 flows through the air supply channel 1123 and is discharged through the air supply port. An air guiding protrusion 1411 is formed on the surface of the first baffle plate 141 facing the first side wall, and the air guiding protrusion 1411 is arranged on the side of the first baffle plate 141 away from the air supply gap 1122. The air guiding protrusion 1411 protrudes from the first baffle plate 141 and extends toward the first side wall. An air guiding surface is formed on the air guiding protrusion 1411. The high-temperature air flowing through the air supply channel 1123 changes its flow direction after passing through the air guiding surface and flows toward the air supply port, which facilitates the gas to flow into the air supply port and increases the gas flow speed, thereby improving the heat dissipation effect of the electric control box assembly 1.

[0059] According to an embodiment of the present invention, hook portions 1412 are provided on both sides of the first baffle 141 in the width direction, and first matching holes 1124 matching with the hook portions 1412 are formed on the housing.

[0060] Specifically, the first baffle 141 is provided with Figure 6 The hook portion 1412 shown is arranged on both sides of the width direction of the first baffle 141, and the hook portion 1412 is arranged on the side of the first baffle 141 away from the air supply gap 1122, and a first matching hole 1124 matching with the hook portion 1412 is formed on the shell. After the hook portion 1412 passes through the first matching hole 1124, at least part of the hook portion 1412 can be clamped with the surrounding wall of the first matching hole 1124. After the hook portions 1412 on both sides of the width direction of the first baffle 141 are respectively clamped with the corresponding surrounding walls of the first matching hole 1124, the two sides of the width direction of the first baffle 141 are respectively clamped and fixed with the lower shell 112. The assembly steps of the hook portion 1412 and the first matching hole 1124 are simple, and the clamping of the hook portion 1412 and the first matching hole 1124 is stable, which avoids shaking or separation between the first baffle 141 and the lower shell 112.

[0061] According to an embodiment of the present invention, a plurality of support legs 1413 connected to the lower housing 112 and spaced apart from each other are disposed at an edge of the first baffle 141 , and an air supply gap 1122 is defined between two adjacent support legs 1413 .

[0062] Specifically, the first baffle 141 is formed with Figure 5The multiple supporting feet 1413 shown are arranged at intervals with respect to the bottom edge of the first baffle 141, and each supporting foot 1413 includes a first section and a second section, one end of the first section is connected to the first baffle 141, and the other end of the first section extends vertically toward the lower shell 112, the second section is connected to the first section and to the lower shell 112, a connecting flange is formed on the second section, and the connecting flange can be fixedly connected to the lower shell 112 through a welding process after being fitted with the lower shell 112, a first connecting hole 14131 is also provided on the second section, and a second connecting hole matching the connecting hole is formed on the lower shell 112, the supporting foot 1413 can be further connected to the lower shell 112 by bolts, so that the first baffle 141 can be stably installed on the lower shell 112, and reinforcing ribs are also provided on the supporting foot 1413 to improve the structural strength of the supporting foot 1413, avoid the disconnection of the supporting foot 1413, and ensure the stable installation of the first baffle 141.

[0063] According to one embodiment of the present invention, the baffle further includes a second baffle 142, which is connected to the upper shell and extends toward the lower shell 112. The second baffle 142 is arranged on a side of the first baffle 141 away from the first side wall, and the second baffle 142 closes the gap between the first baffle 141 and the upper shell.

[0064] Specifically, the second baffle 142 is arranged on the upper shell and extends toward the lower shell 112, wherein the second baffle 142 is arranged on the side of the first baffle 141 away from the first side wall, the second baffle 142 is arranged between the electrical component and the first baffle 141, and at least a portion of the first baffle 141 is directly opposite to the ventilation hole 1121. Since a large number of ventilation holes 1121 are provided on the first side wall, rainwater can enter the accommodating cavity 113 through the ventilation holes 1121 and wet the electrical components, thereby causing a short circuit problem of the electrical components. Therefore, the second baffle 142 is arranged on the upper shell and directly opposite to the ventilation holes 1121. , which can block rainwater. At the same time, the second baffle 142 closes the gap between the first baffle 141 and the upper shell, further improving the blocking effect of rainwater, preventing rainwater from contacting electrical components, and ensuring the safe use of electrical components. An air supply gap 1122 is formed at the bottom of the second baffle 142 and the first baffle 141, and an air supply channel 1123 is formed on the side of the second baffle 142 and the first baffle 141 facing the first side wall. The high-temperature air in the accommodating cavity 113 can be discharged from the ventilation hole 1121 through the air supply gap 1122 and the air supply channel 1123, thereby improving the heat dissipation performance of the electric control box assembly 1.

[0065] According to an embodiment of the present invention, an assembly gap 1111 suitable for accommodating at least a portion of the edge of the lower shell 112 is formed between the second baffle 142 and the edge of the upper shell.

[0066] Specifically, an assembly space suitable for accommodating at least a portion of the edge of the lower shell 112 is formed on the upper shell, and the assembly space is opposite to the first side wall of the lower shell 112. One side of the lower shell 112 provided with the first side wall is suitable for matching and connecting with the assembly space gap, wherein a snap-fit ​​structure matching with the assembly gap 1111 can be formed on the lower shell 112. After the lower shell 112 is inserted into the assembly gap 1111, it is snap-fitted and fixed with the upper shell for easy assembly.

[0067] According to one embodiment of the present invention, a circuit board 155 mounting groove is formed on the surface of the upper shell facing the lower shell 112; the electrical component includes: a substrate 151 and a chip mounting portion 152, and the substrate 151 is accommodated in the circuit board 155 mounting groove; the chip mounting portion 152 is arranged on the substrate 151 and is arranged opposite to the electrical bracket 12, and a chip 153 mounting groove suitable for accommodating a chip 153 is formed in the chip mounting portion 152.

[0068] Specifically, a mounting groove for a circuit board 155 is formed on the upper shell, and the circuit board 155 can be accommodated in the mounting groove for the circuit board 155. The electrical component includes a substrate 151 and a chip mounting portion 152. The substrate 151 is accommodated in the mounting groove for the circuit board 155. A through hole can be provided on the substrate 151, and a through hole matching the through hole can be provided in the mounting groove for the circuit board 155. The substrate 151 can be fixedly connected to the substrate 151 by passing a screw through the through hole, so that the substrate 151 is stably connected to the upper shell, and the substrate 151 is fixedly connected to the upper shell. After the fixed connection, the upper shell and the lower shell 112 can be connected, which improves the assembly efficiency between the upper shell and the lower shell 112; a chip mounting portion 152 is also provided on the substrate 151, and the chip mounting portion 152 is directly opposite to the electrical bracket 12. A chip 153 mounting groove for accommodating a chip 153 is formed on the chip mounting portion 152. The chip 153 is arranged in the chip 153 mounting groove and directly opposite to the electrical bracket 12, which facilitates the heat dissipation pipeline 13 provided on the electrical bracket 12 to dissipate heat for the chip 153, thereby preventing the chip 153 from being overheated.

[0069] According to one embodiment of the present invention, an avoidance groove 1521 suitable for avoiding the chip 153 is provided on the outer periphery of the chip mounting portion 152, and the avoidance groove 1521 is openly provided in a direction away from the substrate 151, and a stop protrusion 121 is formed on the electrical bracket 12, and the stop protrusion 121 stops and closes the open end of the avoidance groove 1521.

[0070] Specifically, the outer periphery of the chip mounting portion 152 is provided with Fig.10The avoidance groove 1521 of the avoidance chip 153 is shown, and the avoidance groove 1521 is open and arranged in the direction away from the substrate 151. When the chip 153 is installed into the chip mounting part 152, the existence of the avoidance groove 1521 provides an avoidance space for the installation of the chip 153, thereby preventing the chip 153 from colliding with the upper shell and being damaged during the installation process; a stop protrusion 121 is formed on the electrical bracket 12, and the stop protrusion 121 is opposite to the avoidance groove 1521 and is suitable for stopping with the open end of the avoidance groove 1521, thereby closing the open mouth of the avoidance groove 1521, preventing insects from entering the avoidance groove 1521 and causing a short circuit of the chip 153 and a failure of the electric control system, etc., thereby meeting the insect prevention requirements of the electric control box assembly 1 and improving the safety of the chip 153.

[0071] In some embodiments, a screw guard 154 is further provided on the chip mounting portion 152, and the screw guard 154 is provided on the chip 153 mounting portion. Since there is a gap between the chip 153 and the chip mounting portion 152, when the chip 153 is fixedly connected to the chip mounting portion 152 by screws, the screw hole of the chip 153 is semicircular, and the screw may be crooked in the screw hole, thereby affecting the assembly efficiency. The present application arranges a single edge of the screw at the screw hole to avoid the screw from being crooked and ensure the assembly efficiency.

[0072] According to one embodiment of the present invention, the electrical bracket 12 includes a main body portion 122 and a snap portion 123, and a support surface opposite to the electrical components is formed on the main body portion 122, and a receiving groove 1221 suitable for receiving the heat dissipation pipeline 13 is provided on the support surface; the snap portion 123 is arranged at both ends of the main body portion 122 in the length direction, and a snap groove 1231 suitable for limiting the escape of the heat dissipation pipeline 13 is formed in each snap portion 123.

[0073] Specifically, the structure of the electrical bracket 12 is as follows: Figure 7 and Figure 8As shown, a support surface facing the electrical components is formed on the main body 122, and a heat dissipation pipeline 13 is arranged on the support surface, so that the heat dissipation pipeline 13 faces the chip mounting portion 152, and the cooling medium flowing in the heat dissipation pipeline 13 can more effectively take away the heat in the chip 153, and control the temperature of the chip 153 within a safe range. A receiving groove 1221 is arranged on the support surface, and the heat dissipation pipeline 13 is arranged in the receiving groove 1221. The receiving groove 1221 defines the extension direction of the heat dissipation pipeline 13, and at both ends of the length direction of the main body 122 A snap portion 123 is also provided. The snap portions 123 are constructed in multiples and are spaced apart at both ends of the main body 122. After the heat dissipation pipeline 13 is received in the receiving groove 1221, at least part of the periphery of the heat dissipation pipeline 13 abuts against the snap portion 123. A snap groove 1231 is formed on the snap portion 123. The snap groove 1231 fits with at least part of the periphery of the heat dissipation pipeline 13 to limit the movement of the heat dissipation pipeline 13, thereby preventing the heat dissipation pipeline 13 from falling out of the receiving groove 1221 during transportation and causing damage to the chip 153, thereby ensuring the safe use of electrical components.

[0074] According to one embodiment of the present invention, the buckle portion 123 includes an extension plate 1232, a first arm 12331 and a second arm 12332. The extension plate 1232 is arranged at both ends of the main body 122 in the length direction and is provided with a step surface parallel to the support surface; the first arm 12331 and the second arm 12332 are respectively arranged on the step surface and extend in a direction perpendicular to the step surface, and a buckle groove 1231 is defined between the first arm 12331 and the second arm 12332, which is opposite to the receiving groove 1221 in the extension direction, and the free end of the first arm 12331 and the free end of the second arm 12332 are respectively formed with a limiting protrusion 12333 protruding toward each other.

[0075] Specifically, the structure of the buckle portion 123 is as follows: Figure 7As shown, an extension plate is provided at both ends of the main body 122 in the length direction, and a step surface parallel to the support surface is provided on the extension plate. The first arm 12331 and the second arm 12332 are respectively provided on the step surface, and the height of the step surface is lower than the height of the support surface, which is convenient for the installation of the first arm 12331 and the second arm 12332, and can prevent the first arm 12331 and the second arm 12332 from being too long and abutting against the chip 153 and damaging the chip 153. Reinforcing ribs are respectively provided between the first arm 12331 and the step surface and between the second arm 12332 and the step surface to improve the structural strength of the first arm 12331 and the second arm 12332 and prevent the first arm 12331 and the second arm 12332 from being A snap groove 1231 is defined between the first arm 12331 and the second arm 12332, and at least a portion of the heat dissipation pipeline 13 is accommodated in the snap groove 1231 to fix the heat dissipation pipeline 13 on the electrical bracket 12, and limiting protrusions 12333 protruding toward each other are respectively formed at the free end of the first arm 12331 and the free end of the second arm 12332. After at least a portion of the heat dissipation pipeline 13 is accommodated in the snap groove 1231, the limiting protrusion 12333 and the surface of the heat dissipation pipeline 13 stop and limit the movement of the heat dissipation pipeline 13 to prevent the heat dissipation pipeline 13 from escaping from the snap groove 1231. At the same time, the lower surface of the heat dissipation pipeline 13 is in contact with the inner wall of the snap groove 1231 to prevent the heat dissipation pipeline 13 from shaking and making abnormal noises.

[0076] In some embodiments, the length of the first arm 12331 and the length of the second arm 12332 are the same and both are greater than the length of the buckle of the heat dissipation pipe 13 in the related technology, thereby improving the limiting effect of the heat dissipation pipe 13, preventing the heat dissipation pipe 13 from detaching from the electrical bracket 12, and improving the elasticity of the buckle portion 123, preventing the buckle portion 123 from breaking.

[0077] According to one embodiment of the present invention, a bend support portion 1222 is provided at one end of the main body portion 122, and an arc groove suitable for cooperating with the bending section of the heat dissipation pipeline 13 is formed on the bend support portion 1222, and the bend support portion 1222 is arranged on the side of the buckle portion 123 away from the main body portion 122.

[0078] Specifically, a bent pipe support portion 1222 is further provided at one end of the main body portion 122. The bent pipe support portion 1222 is provided on a side of the buckle portion 123 away from the main body portion 122 and directly opposite to the bent section of the heat dissipation pipeline 13. The heat dissipation pipeline 13 in the present application is constructed as a U-shaped tubular structure. The heat dissipation pipeline 13 is bent and extended to increase the heat dissipation area of ​​the heat dissipation pipeline 13. An arc groove cooperating with the bent section of the heat dissipation pipeline 13 is formed on the bent pipe support portion 1222. The bent section of the heat dissipation pipeline 13 is accommodated in the arc groove to fix the bent section of the heat dissipation pipeline 13 to the support surface to prevent the heat dissipation pipeline 13 from detaching from the support surface.

[0079] According to an embodiment of the present invention, a limiting rib 124 is protruded along the outer periphery of the supporting surface and extends in the same direction as the receiving groove 1221 .

[0080] Specifically, the outer periphery of the support surface is provided with Figure 7 The limiting rib 124 shown has an extending direction that is the same as the extending direction of the receiving groove 1221 . The limiting rib 124 is suitable for limiting the installation of the heat dissipation pipeline 13 to ensure that the installation position of the heat dissipation pipeline 13 is accurate.

[0081] According to one embodiment of the present invention, a supporting and fixing foot 1223 is provided at the bottom of the main body 122. The supporting and fixing foot 1223 is constructed into a plurality of feet and are respectively arranged at intervals on both sides of the width direction of the main body 122. The supporting and fixing foot 1223 extends toward the lower shell 112 and a snap-fitting protrusion 12231 is formed at the end of the supporting and fixing foot 1223. A snap-fitting hole 1125 cooperating with the snap-fitting protrusion 12231 is formed on the lower shell 112.

[0082] Specifically, a plurality of supporting and fixing feet 1223 are arranged at intervals at the bottom of the main body 122, and the plurality of supporting and fixing feet 1223 are arranged at intervals on both sides in the width direction of the main body 122, and each supporting and fixing foot 1223 is respectively suitable for being fixedly connected with the lower shell 112, wherein a snap-fitting protrusion 12231 is formed at the end of the supporting and fixing foot 1223, and a plurality of snap-fitting holes 1125 respectively cooperating with the plurality of snap-fitting protrusions 12231 are formed on the lower shell 112. After the supporting and fixing foot 1223 passes through the snap-fitting hole 1125, the snap-fitting protrusion 12231 is snap-fitted with the bottom wall of the lower shell 112, thereby fixing the supporting and fixing foot 1223 with the lower shell 112, so as to fix the electrical bracket 12 with the lower shell 112 and prevent the electrical bracket 12 from moving relative to the lower shell 112.

[0083] In some embodiments, a first buckle 1112 is provided on at least one side of the upper shell, a first protrusion 1113 is formed on the first buckle 1112, a first slot 1127 matching with the first protrusion 1113 is provided on the lower shell 112, the first buckle 1112 is connected to the first slot 1127, the first protrusion 1113 is accommodated in the first slot 1127, so as to preliminarily fix the upper shell and the lower shell 112, a first warped edge is formed on the first buckle 1112, the first warped edge is suitable for positioning with the partition, so as to ensure that the assembly position of the electric control box assembly 1 and the partition is accurate, and the connection between the upper shell and the lower shell 112 is stable.

[0084] In summary, the electric control box assembly 1 according to the present invention is convenient for the heat dissipation pipeline 13 on the electric support 12 to dissipate heat for the electric components by arranging the electric support 12 and the electric components opposite to each other. At the same time, a ventilation hole 1121 is formed on the shell body to connect the accommodating cavity 113 with the outside. A baffle is arranged between the ventilation hole 1121 and the electric components. The baffle can prevent rainwater from contacting the electric components, thereby ensuring the safety of the use of the electric components and preventing the fire from spreading to the outside of the electric control box assembly 1 after the electric control components catch fire. An air supply channel 1123 is formed between the baffle and the ventilation hole 1121. The high-temperature gas in the electric control box assembly 1 can be discharged from the ventilation hole 1121 after passing through the air supply channel 1123, thereby further improving the heat dissipation performance of the electric control box assembly 1. The electric support 12 includes a main body portion 122 and a buckle portion 123. A support surface for supporting the heat dissipation pipeline 13 with a limited position is formed on the main body portion 122. The buckle portion 123 23 fixes the heat dissipation pipeline 13 in the buckle groove 1231 to prevent the heat dissipation pipeline 13 from detaching from the support frame. The lengths of the first arm 12331 and the second arm 12332 of the buckle part 123 are both greater than the buckle structure in the prior art, thereby improving the structural elasticity of the buckle part 123 and preventing the buckle part 123 from breaking. The shell includes an upper shell and a lower shell 112. After the upper shell is connected and fixed to the electrical component, it is connected to the lower shell 112 through the buckle structure, which is convenient for assembly. The electrical bracket 12 is fixedly connected to the lower shell 112 through the supporting fixing feet 1223. After the upper shell and the lower shell 112 are assembled, the electrical bracket 12 is directly opposite to the electrical component chip 153, which is beneficial to cooling the chip 153. At the same time, a screw baffle is provided on the chip mounting part 152. When the chip 153 is connected to the chip mounting part 152 by screws, the screws will not move under the limit of the screw baffle, and the assembly efficiency of the chip 153 is higher.

[0085] The outdoor unit of the air conditioner according to the present invention is briefly described below.

[0086] The air conditioner outdoor unit according to the present invention comprises a casing, an electric control box assembly 1 as described in any one of the above embodiments, and a fan blade. The electric control box assembly 1 is accommodated in the casing, and a fan blade is rotatably arranged in the casing, at least a part of the fan blade is directly opposite to the ventilation hole 1121 of the electric control box assembly 1. After the outdoor unit rotates, it drives air circulation and generates negative pressure outside the ventilation hole 1121. The negative pressure generated by the fan blade can drive the high-temperature air in the electric control box assembly 1 to circulate. The high-temperature air in the electric control box assembly 1 flows through the air supply gap 1122 and the air supply channel 1123 and is discharged from the ventilation hole 1121, thereby achieving heat dissipation for the electric control box assembly 1. The air conditioner outdoor unit according to the present invention discharges the high-temperature air in the electric control box assembly 1 by setting the fan blade, thereby achieving heat dissipation for the electric control box assembly 1, and cooperates with the heat dissipation pipeline 13 in the electric control box assembly 1 to further improve the heat dissipation effect of the electric control box assembly 1, thereby ensuring the safe use of the electric control box assembly 1.

[0087] According to one embodiment of the present invention, the air conditioner outdoor unit also includes a partition, which is arranged in the outer shell and divides the outer shell into a first cavity and a second cavity, the fan blade is arranged in the first cavity, and at least a part of the electric control box assembly 1 is arranged in the second cavity, and a limiting notch is arranged on the partition to cooperate with the electric control box assembly 1.

[0088] Specifically, a partition is arranged on the outer shell and divides the outer shell into a first cavity and a second cavity, a fan blade is arranged in the first cavity, and an electric control box assembly 1 is arranged in the second cavity, the fan blade is directly opposite to the ventilation hole 1121 of the electric control box assembly 1, and the negative pressure generated by the rotation of the fan blade is conducive to discharging the high-temperature gas in the electric control box assembly 1, thereby dissipating the heat of the electric control box assembly 1, and a limiting notch is arranged on the partition to cooperate with the electric control box assembly 1, and at least a part of the electric control box assembly 1 is connected to the limiting notch, so that at least a part of the electric control box assembly 1 is positioned and connected to the partition, which facilitates the subsequent assembly of the electric control box assembly 1 and improves the assembly efficiency, wherein a limiting buckle 1126 cooperating with the limiting notch can be arranged on the shell of the electric control box assembly 1, and the limiting buckle 1126 is engaged with the limiting notch to pre-position and connect the electric control box to the partition.

[0089] According to an embodiment of the present invention, the partition is provided with a first positioning member, and the housing is provided with a second positioning member 16 , and the first positioning member and the second positioning member 16 are engaged with each other.

[0090] Specifically, a second positioning member 16 is provided on the lower shell 112, and the second positioning member 16 can be constructed as a matching square hole. A first positioning member matching with the second positioning member 16 is provided on the partition, and the first positioning member can be constructed as a matching hook matching with the matching square hole. After the first positioning member and the second positioning member 16 are connected, the shell of the electric control box assembly 1 can be preliminarily confined on the partition, which facilitates the assembly of the electric control box assembly 1 and improves the assembly efficiency of the electric control box assembly 1.

[0091] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0092] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0093] In the description of the present invention, "plurality" means two or more.

[0094] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0095] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric control box assembly, characterized in that: include: A housing having a receiving cavity for receiving electrical components; An electrical bracket, the electrical bracket is disposed in the accommodating cavity and is suitable for supporting the electrical component; A heat dissipation pipeline, the heat dissipation pipeline is arranged on the electrical bracket, and a cooling medium flows through the heat dissipation pipeline so as to be suitable for heat exchange of the accommodating cavity; wherein The shell is formed with a ventilation hole which connects the accommodating cavity with the outside.

2. The electric control box assembly according to claim 1, characterized in that: The shell is provided with a first side wall, the first side wall is provided with the ventilation hole, and the electric control box assembly further comprises: a baffle, the baffle is spaced apart from the first side wall and is arranged between the electrical bracket and the first side wall, and the baffle is directly opposite to the ventilation hole.

3. The electric control box assembly according to claim 2, characterized in that: The housing comprises: A lower shell, wherein the lower shell encloses the accommodating cavity, and the electrical bracket is arranged on the lower shell; An upper housing, the upper housing is arranged on the lower housing, and the electrical components are arranged on the upper housing; wherein The baffle is arranged on the upper shell and / or the lower shell, the first side wall is formed on the lower shell, the baffle is spaced apart from the first side wall and an air supply channel is formed between the baffle and the first side wall, and an air supply gap is formed between the free end of the baffle and the lower shell.

4. The electric control box assembly according to claim 3, characterized in that: The baffle comprises: A first baffle is disposed on the lower shell, a surface of the first baffle facing the first side wall is formed with an air guide protrusion, and the air guide protrusion is disposed on a side of the first baffle away from the air supply gap.

5. The electric control box assembly according to claim 4, characterized in that: The first baffle is provided with hook portions on both sides in the width direction, and the housing is formed with first matching holes matching with the hook portions.

6. The electric control box assembly according to claim 5, characterized in that: The edge of the first baffle is provided with a plurality of supporting feet connected to the lower shell and spaced apart from each other, and the air supply gap is defined between two adjacent supporting feet.

7. The electric control box assembly according to claim 4, characterized in that: The baffle further comprises: The second baffle is connected to the upper shell and extends toward the lower shell. The second baffle is arranged on a side of the first baffle away from the first side wall. The second baffle closes the gap between the first baffle and the upper shell.

8. The electric control box assembly according to claim 7, characterized in that: An assembly gap suitable for accommodating at least a portion of the edge of the lower shell is formed between the second baffle and the edge of the upper shell.

9. The electric control box assembly according to claim 3, characterized in that: A circuit board mounting groove is formed on the surface of the upper housing facing the lower housing; The electrical components include: A substrate, the substrate being received in the circuit board mounting groove; A chip mounting portion is arranged on the substrate and is arranged opposite to the electrical bracket, and a chip mounting groove suitable for accommodating the chip is formed in the chip mounting portion.

10. The electric control box assembly according to claim 9, characterized in that: The chip mounting portion has an outer periphery provided with an escape groove suitable for evading the chip, the escape groove is open in a direction away from the substrate, and a stop protrusion is formed on the electrical bracket, the stop protrusion abuts against the open end of the escape groove and closes the open mouth of the escape groove.

11. The electric control box assembly according to claim 1, characterized in that: The electrical support comprises: A main body, wherein a support surface facing the electrical component is formed on the main body, and a receiving groove suitable for receiving the heat dissipation pipeline is provided on the support surface; The buckle parts are arranged at both ends of the main body in the length direction, and each of the buckle parts is formed with a buckle groove suitable for limiting the heat dissipation pipeline from coming out.

12. The electric control box assembly according to claim 11, characterized in that: The buckle portion comprises: Extension plates, the extension plates are arranged at both ends of the main body in the length direction and are provided with step surfaces parallel to the support surface; A first arm and a second arm, the first arm and the second arm are respectively arranged on the step surface and extend in a direction perpendicular to the step surface, a snap groove is defined between the first arm and the second arm and is directly opposite to the receiving groove in the extension direction, and a free end of the first arm and a free end of the second arm are respectively formed with limiting protrusions protruding toward each other.

13. The electric control box assembly according to claim 11, characterized in that: A curved pipe support portion is arranged at one end of the main body, an arc groove suitable for cooperating with the bent section of the heat dissipation pipeline is formed on the curved pipe support portion, and the curved pipe support portion is arranged on a side of the buckle portion away from the main body.

14. The electric control box assembly according to claim 11, characterized in that: A limiting rib is convexly provided along the outer periphery of the supporting surface in the same direction as the extending direction of the receiving groove.

15. The electric control box assembly according to claim 11, characterized in that: A supporting and fixing foot is provided at the bottom of the main body, and the supporting and fixing foot is constructed into a plurality of feet and are spaced apart on both sides of the width direction of the main body, the supporting and fixing foot extends toward the lower shell and a clamping protrusion is formed at the end of the supporting and fixing foot, and a clamping hole that cooperates with the clamping protrusion is formed on the lower shell.

16. An air conditioner outdoor unit, characterized in that: include: shell; An electric control box assembly, the electric control box assembly being received in the housing and being constructed as the electric control box assembly according to any one of claims 1 to 15; A fan blade is rotatably disposed in the shell, at least a portion of the fan blade is directly opposite to the ventilation hole, and the fan blade rotates to generate negative pressure outside the ventilation hole to discharge the hot air in the accommodating cavity.

17. The air conditioner outdoor unit according to claim 16, characterized in that: Also includes: A partition is arranged in the shell and divides the shell into a first cavity and a second cavity, the fan blade is arranged in the first cavity, at least a part of the electric control box assembly is arranged in the second cavity, and a limiting notch is arranged on the partition to cooperate with the electric control box assembly.

18. The air conditioner outdoor unit according to claim 17, characterized in that: The partition is provided with a first positioning member, and the shell is provided with a second positioning member, and the first positioning member and the second positioning member are engaged with each other.

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