Air conditioner electric control box, air conditioner outdoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner electric control box, an air conditioner outdoor unit and an air conditioner, the air conditioner electric control box comprises an electric control box main body with a built-in electric control board, an air inlet pipeline and a baffle, the electric control box main body is provided with an air inlet and an air outlet, and the air inlet pipeline is communicated with the air inlet; a baffle used for preventing water drops from entering is arranged in the air inlet pipeline, the baffle divides the air inlet pipeline into a first air inlet pipeline and a second air inlet pipeline which are communicated with each other, the first air inlet pipeline is communicated with the air inlet, and the cross section area of the first air inlet pipeline is smaller than that of the first air inlet pipeline. According to the air conditioner electric control box, the heat dissipation effect of the air conditioner electric control box can be improved, and meanwhile the waterproof requirement of the air conditioner electric control box is met.

Description

Technical Field

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

[0002] The electrical control box in the outdoor unit of an air conditioner is mainly responsible for controlling the operation of air conditioning equipment such as the compressor, fan, and condenser, thereby controlling the overall operation and temperature regulation of the air conditioner.

[0003] For the electrical control box of existing top-discharge outdoor units, considering waterproofing requirements, air cooling is typically used to dissipate heat. This involves installing external heat sinks on the control box, and using the forced convection airflow generated by the outdoor unit's fan to exchange heat with the heat sinks. However, relying solely on airflow over external heat sinks to remove heat is not ideal, especially in high-temperature environments. Poor heat dissipation can easily lead to overheating of electronic components, thus affecting the normal operation of the air conditioner. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to overcome the defects or deficiencies of the prior art and provide an air conditioner control box whose structure can improve the heat dissipation effect of the air conditioner control box and at the same time meet the waterproof requirements of the air conditioner control box.

[0005] This utility model is achieved through the following technical solution: an air conditioner control box, including a control box body with a built-in control board, an air inlet duct and a baffle, wherein the control box body is provided with an air inlet and an air outlet, and the air inlet duct is connected to the air inlet;

[0006] The air inlet duct is equipped with a baffle to prevent water droplets from entering. The baffle divides the air inlet duct into a first air inlet duct and a second air inlet duct that are interconnected. The first air inlet duct is connected to the air inlet, and the cross-sectional area of ​​the first air inlet duct is smaller than that of the second air inlet duct.

[0007] Compared with existing technologies, the air conditioner control box provided by this utility model has an air inlet and an air outlet on its main body. External airflow can flow into the main body of the control box through the air inlet for heat exchange, and then be carried away through the air outlet. An air inlet duct connected to the air inlet is provided, and a baffle is installed inside the air inlet duct to block water droplets in the airflow. The baffle divides the air inlet duct into a first air inlet duct and a second air inlet duct that are interconnected. By reducing the cross-sectional area of ​​the first air inlet duct, the airflow velocity is increased, causing water droplets to impact the baffle under the influence of the airflow. Then, by increasing the cross-sectional area of ​​the second air inlet duct, the airflow velocity is reduced, causing the water droplets to settle. This double physical barrier prevents moisture from entering the air conditioner control box. Through the above design, the heat dissipation effect of the air conditioner control box is improved while meeting the waterproof requirements.

[0008] Furthermore, the baffle includes a first baffle and a second baffle arranged sequentially along the airflow direction. The first baffle and the second baffle are respectively disposed on opposite sides of the air inlet duct, and the projected portions of the first baffle and the second baffle along the airflow direction overlap. The first baffle, the second baffle, and the inner wall of the air inlet duct together define the first air inlet duct, and the side of the second baffle away from the first baffle together with the inner wall of the air inlet duct defines the second air inlet duct. By setting the first baffle and the second baffle inside the air inlet duct, water droplets are blocked, and they together define the first air inlet duct and the second air inlet duct.

[0009] Furthermore, it also includes a third baffle and a fourth baffle. The third baffle is disposed at the end of the first baffle and extends towards the second baffle. The fourth baffle is disposed at the end of the second baffle and extends towards the first baffle. The first baffle, the second baffle, the third baffle, the fourth baffle, and the inner wall of the air inlet duct together define the first air inlet duct. The side of the second baffle away from the first baffle and the inner wall of the air inlet duct together define the second air inlet duct. The third baffle and the fourth baffle further block water droplets.

[0010] Furthermore, the air inlet is located at the bottom of the main body of the electrical control box; the air inlet duct is a hollow tube, and an air inlet port corresponding to the air inlet is provided on the side of the air inlet duct near the air inlet, the air inlet port being connected to the air inlet; an air outlet is provided on the side of the air inlet duct away from the air inlet port; the baffle is located near the air inlet port. The bottom air inlet reduces the possibility of water droplets, dust, etc., directly entering the electrical control box; the design of the air inlet duct guides airflow and reduces connection gaps so that airflow can only enter the electrical control box through the air inlet duct.

[0011] Furthermore, the air outlet is equipped with a mesh baffle with several through holes arranged in a matrix. The mesh baffle and through holes further reduce the possibility of water droplets entering the electrical control box, while effectively preventing insects from entering the box and damaging electronic components.

[0012] Furthermore, the air conditioning control box also includes an air guide cover, which covers the outside of the control box body and encloses the control box body to define a heat dissipation pipe. The air conditioning control box also includes a heat sink, which is located inside the heat dissipation pipe and disposed within the control box body. The control box body has a heat dissipation opening corresponding to the heat sink, and the heat sink exchanges heat with the interior of the control box body through the heat dissipation opening. The heat dissipation effect is further improved through the heat sink and the heat dissipation air duct.

[0013] Furthermore, the air outlet is positioned above the air inlet; the air conditioning control box also includes an air outlet duct connected to the air outlet. The air outlet duct is located on the outside of the control box body and extends towards the bottom of the control box body. The air outlet duct is connected to the heat dissipation duct near the bottom of the control box body. The air outlet is positioned at the top and connected to the heat dissipation duct, creating a negative pressure. Cold air from the outside enters the control box from the air inlet and hot air is discharged from the air outlet at the top, thus creating effective airflow and accelerating the dissipation of internal heat. The design of the air outlet duct ensures a certain height difference between the air outlet and the air outlet point of the duct, preventing rainwater from directly splashing into the air conditioning control box.

[0014] Furthermore, the end of the air outlet duct furthest from the air outlet is positioned corresponding to the heat sink. The hot airflow, after heat exchange inside the control box, can utilize the structure of the heat sink to quickly dissipate heat into the environment.

[0015] This utility model also provides an outdoor unit for an air conditioner, including an outdoor unit body and an air conditioner control box as described above; the outdoor unit body has a heat dissipation duct; the air conditioner control box is disposed in the heat dissipation duct, and the air outlet and air inlet are respectively connected to the heat dissipation duct.

[0016] This utility model also provides an air conditioner, including an indoor unit and an outdoor unit as described above, wherein the indoor unit is connected to the outdoor unit.

[0017] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the air conditioner control box described in Embodiment 1;

[0019] Figure 2 This is an exploded view of the air conditioner control box described in Embodiment 1;

[0020] Figure 3 This is a schematic diagram showing the positions of the air inlet duct and the substrate as described in Embodiment 1;

[0021] Figure 4 for Figure 3 Sectional view of AA;

[0022] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 This is a schematic diagram of airflow inside the intake duct;

[0024] Figure 7 This is a schematic diagram of the structure of the substrate, left cover plate, and right cover plate described in Embodiment 1;

[0025] Figure 8 This is a schematic diagram of the air inlet duct structure described in Embodiment 1. Figure 1 ;

[0026] Figure 9 This is a schematic diagram of the air inlet duct structure described in Embodiment 1. Figure 2 ;

[0027] Figure 10 This is a schematic diagram showing the location of the air inlet duct as described in Embodiment 1;

[0028] Figure 11 This is a schematic diagram of the structure of the air outlet cover and air outlet guide plate described in Embodiment 1;

[0029] Figure 12 This is a schematic diagram of the air guide cover as described in Embodiment 1;

[0030] Figure 13 This is a schematic diagram of the airflow inside the outdoor unit of the air conditioner as described in Embodiment 2.

[0031] Reference numerals: 1. Air conditioner control box; 10. Control box body; 11. Base plate; 111. Heat dissipation vent; 12. Top cover; 13. Left side cover; 14. Right side cover; 15. Front cover; 16. Air inlet; 17. Air outlet; 18. First air guide plate; 20. Air inlet duct; 21. Air inlet duct opening; 22. Air outlet duct opening; 23. Mounting port; 24. First air inlet duct; 25. Second air inlet duct; 30. Baffle; 3 1. First baffle; 32. Second baffle; 33. Third baffle; 34. Fourth baffle; 40. Mesh baffle; 41. Through hole; 50. Air guide cover; 51. Heat dissipation channel; 52. Second air guide plate; 53. Third air guide plate; 60. Heat sink; 70. Air outlet cover; 71. Air outlet duct; 72. Connecting port; 73. Air outlet guide plate; 2. Housing; 3. Heat dissipation air duct; 4. Ventilation outlet; 5. Cooling fan; 6. Compressor. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] Example 1

[0034] like Figures 1 to 12 As shown, this embodiment provides an air conditioner control box, including a control box body 10 with a built-in control board, an air inlet duct 20, and a baffle 30. The control box body 10 is provided with an air inlet 16 and an air outlet 17. The air inlet duct 20 is connected to the air inlet 16. The air inlet duct 20 is provided with a baffle 30 for blocking water droplets from entering. The baffle 30 divides the air inlet duct 20 into a first air inlet duct 24 and a second air inlet duct 25 that are connected to each other. The first air inlet duct 24 is connected to the air inlet 16. The cross-sectional area of ​​the first air inlet duct 24 is smaller than the cross-sectional area of ​​the second air inlet duct 25.

[0035] By providing an air inlet 16 and an air outlet 17 on the main body 10 of the air control box, external airflow can flow into the main body 10 of the air control box through the air inlet 16 for heat exchange, and then carry away the heat through the air outlet 17. An air inlet duct 20 connected to the air inlet 16 is provided, and a baffle 30 is installed inside the air inlet duct 20 to block water droplets in the airflow. The baffle 30 divides the air inlet duct 20 into a first air inlet duct 24 and a second air inlet duct 25 that are interconnected. By reducing the cross-sectional area of ​​the first air inlet duct 24, the airflow velocity is increased, causing water droplets to impact the baffle under the influence of the airflow. Conversely, by increasing the cross-sectional area of ​​the second air inlet duct 25, the airflow velocity is reduced, causing the water droplets to settle. This double physical barrier prevents moisture from entering the air conditioning control box. Through the above design, the heat dissipation effect of the air conditioning control box is improved while meeting the waterproof requirements of the air conditioning control box.

[0036] It should be noted that the air conditioner control box provided in this embodiment is mainly used in air conditioners. The air conditioner control box can serve as an electronic controller box inside the outdoor unit of an air conditioner, used to control the operation of air conditioning equipment such as the compressor and fan. More specifically, it is used in top-discharge air conditioner outdoor units as the electronic controller box for these units. Of course, this air conditioner control box can also be used in other electrical devices, and there are no limitations on this. In addition to the control board, the air conditioner control box typically includes a power supply and protection circuits electrically connected to the control board. The power supply and protection circuits electrically connected to the control board are all housed within the main body 10 of the control box.

[0037] The following is a detailed description of the specific structure of the electrical control box.

[0038] like Figure 2 and Figure 7As shown, the main body 10 of the electrical control box has a hollow structure. Specifically, the main body 10 of the electrical control box includes an electrical control board, an upper cover plate 12, a left cover plate 13, a right cover plate 14, and a front cover plate 15. The electrical control board includes a substrate 11 and several electronic components disposed on the substrate 11. The substrate 11 is vertically arranged. The upper cover plate 12 is disposed on the upper edge of the substrate 11. The left cover plate 13 and the right cover plate 14 are respectively disposed on the left and right sides of the substrate 11. The front cover plate 15 faces the substrate 11 and is connected to the upper cover plate 12, the left cover plate 13, and the right cover plate 14. The substrate 11, the upper cover plate 12, the left cover plate 13, the right cover plate 14, and the front cover plate 15 together define a hollow box structure with a bottom opening. In this embodiment, the opening is the air inlet 16 of the main body 10 of the electrical control box. Of course, in other alternative embodiments, the main body of the electrical control box may also include a lower cover plate, which covers the opening, and the lower cover plate is provided with an air inlet 16. In this embodiment, the substrate 11, the left cover plate 13, and the right cover plate 14 are integrated. Of course, in other alternative embodiments, the substrate 11, the left cover plate 13, and the right cover plate 14 may be separate designs, which can be detachably connected by screws, clips, or welding. In this embodiment, the upper cover plate 12 is connected to the substrate 11, the left cover plate 13, and the right cover plate 14 by screws. Of course, in other alternative embodiments, the upper cover plate 12 may be connected to the substrate 11, the left cover plate 13, and the right cover plate 14 by clips, welding, or bonding. Of course, the upper cover plate 12 may also be integrated with the substrate 11, the left cover plate 13, and the right cover plate 14. In this embodiment, the front cover plate 15 is detachably connected to the left cover plate 13, the right cover plate 14, and the upper cover plate 12 by screws. Of course, in other alternative embodiments, the front cover plate 15 can be detachably connected to the left cover plate 13, the right cover plate 14, and the upper cover plate 12 by snap-fit.

[0039] It should be noted that the electrical control box body 10 described in this embodiment is not limited to the above-described structural form. For example, the electrical control box body 10 may also include an electrical control board, a bottom plate, an upper cover plate 12, a lower cover plate, a left side cover plate 13, a right side cover plate 14, and a front cover plate 15. The electrical control board includes a base plate 11, and the base plate 11, the bottom plate, the upper cover plate 12, the lower cover plate, the left side cover plate 13, the right side cover plate 14, and the front cover plate 15 together define a closed hollow box structure. The electrical control board is installed inside the hollow box structure.

[0040] like Figures 4 to 5 ,as well as Figures 8 to 9As shown, the air inlet duct 20 is a hollow tube. It is located within the main body 10 of the electrical control box and is positioned along the length of the main body 10 at the air outlet. An air inlet duct opening 21 corresponding to the air inlet 16 is provided on the side of the air inlet duct 20 closest to the air inlet 16, and the air inlet duct opening 21 is connected to the air inlet 16. An air outlet duct opening 22 is provided on the side of the air inlet duct 20 furthest from the air inlet 16. In this embodiment, the cross-sectional shape of the air inlet duct 20 is rectangular. Of course, in other alternative embodiments, the cross-sectional shape of the air inlet duct 20 can be circular, elliptical, or a polygon other than rectangular. In this embodiment, the air inlet duct 20 is connected to the base plate 11 by screws. Of course, in other alternative embodiments, the air inlet duct 20 can be connected to the base plate 11 by clips or by welding.

[0041] The baffle 30 is positioned near the air inlet duct 21. In this embodiment, the baffle 30 includes a first baffle 31 and a second baffle 32, which are sequentially arranged along the airflow direction. The first baffle 31 and the second baffle 32 are respectively positioned on opposite sides of the air inlet duct 20, and their projected portions along the airflow direction overlap. The first baffle 31, the second baffle 32, and the inner wall of the air inlet duct 20 together define the first air inlet duct 24. The side of the second baffle 32 away from the first baffle 31, together with the inner wall of the air inlet duct 30, defines the second air inlet duct 25. By setting the first baffle 31 and the second baffle 32 inside the air inlet duct 20, water droplets are blocked, and the first air inlet duct 24 and the second air inlet duct 25 are defined together with the air inlet duct 20. Through the above arrangement, the first baffle 31 and the second baffle 32 together cover the cross-section of the air inlet duct 20, changing the airflow direction and blocking water droplets in the airflow. Preferably, both the first baffle 31 and the second baffle 32 are perpendicular to the inner wall of the airflow duct 20. Of course, in other alternative embodiments, the first baffle 31 and the second baffle 32 can both be arranged at a certain angle to the inner wall of the airflow duct 20, such as 45° to 90°. In this embodiment, the first baffle 31 is disposed at the air inlet 21 of the air inlet duct 20. Of course, in other alternative embodiments, the first baffle 31 can be disposed inside the air inlet duct 20 near the air inlet duct 21. In this embodiment, the first baffle 31 and the air inlet duct 20 are integrally formed. Of course, in other alternative embodiments, the first baffle 31 can be a separate design from the air inlet duct 20, and can be detached from the air inlet duct 20 by screws, clips, etc., or fixed to the air inlet duct 20 by welding. In this embodiment, the second baffle 32 can be connected to the air inlet duct 20 by clips, screws, etc.

[0042] Furthermore, the baffle 30 also includes a third baffle 33 and a fourth baffle 34. The third baffle 33 is disposed at the end of the first baffle 31 and extends towards the second baffle 32. The fourth baffle 34 is disposed at the end of the second baffle 32 and extends towards the first baffle 31. The first baffle 31, the second baffle 32, the third baffle 33, the fourth baffle 34, and the inner wall of the air inlet duct 20 together define the first air inlet duct 24. The side of the second baffle 32 away from the first baffle 31 and the inner wall of the air inlet duct 20 together define the second air inlet duct 25. The direction of airflow is changed again by the third baffle 33 and the fourth baffle 34, further blocking water droplets. Preferably, the third baffle 33 is perpendicular to the first baffle 31, and the fourth baffle 34 is perpendicular to the second baffle 31. Of course, in other alternative embodiments, the third baffle 33 can be set at a certain angle to the first baffle 31, such as 45° to 90°. Similarly, the fourth baffle 34 can be set at a certain angle to the second baffle 32, such as 45° to 90°. In this embodiment, the third baffle 33 and the first baffle 31 are integrally formed. Of course, in other alternative embodiments, the third baffle 33 and the first baffle 31 can be a separate design and can be connected by welding, screws, snaps, etc. In this embodiment, the fourth baffle 34 and the second baffle 32 are integrally formed. Of course, the fourth baffle 34 and the second baffle 32 can also be a separate design and can be connected by welding, screws, snaps, etc.

[0043] It should be noted that the baffle 30 is not limited to the above-described structural form. For example, the baffle 30 may include an integrally designed first baffle 31, a connecting plate, and a second baffle 32. The first baffle 31 and the second baffle 32 are staggered and parallel to each other. The connecting plate is vertically disposed between the first baffle 31 and the second baffle 32 and is connected to the first baffle 31 and the second baffle 32 respectively. The connecting plate is provided with several ventilation holes. The ends of the first baffle 31 and the second baffle 32 away from the connecting plate are respectively disposed on opposite sides of the air inlet duct 20. The first baffle 31, the connecting plate, the second baffle 32, and the inner wall of the air inlet duct 20 together define the first air inlet duct 24. The side of the second baffle 32 away from the first baffle 31 and the inner wall of the air inlet duct 20 together define the second air inlet duct 25. Thus, the baffle 30 can also cover the cross-section of the air inlet duct 20, change the airflow direction, and block water droplets in the airflow.

[0044] In this embodiment, the air inlet duct 20 has a mounting port 23 on the side facing the substrate 11, and the mounting port 23 is closed by the substrate 11. The mounting port 23 facilitates the placement and installation of the baffle 30 into the air inlet duct 20.

[0045] In this embodiment, the air outlet duct 22 is provided with a mesh baffle 40, which has a plurality of through holes 41 arranged in a matrix. The mesh baffle 40 and the through holes 41 further reduce the possibility of water droplets entering the electrical control box. In this embodiment, the mesh baffle 40 and the air inlet duct 20 are integrally formed. Of course, in other alternative embodiments, the mesh baffle 40 can be designed separately from the air inlet duct 20, and can be detached from the air inlet duct 20 by screws, clips, or fixed to the air inlet duct 20 by welding.

[0046] In this embodiment, the air conditioning control box further includes a first air guide plate 18, which is inclinedly disposed at the air inlet 16, and the projection of the first air guide plate 18 along the airflow direction covers at least a portion of the air inlet duct 21. The inclined first air guide plate 18 guides the airflow direction, and the fluid entering the air inlet duct 20 after being guided by the first air guide plate 18 has a certain angle with the horizontal direction, which can reduce eddies and improve heat dissipation efficiency. In this embodiment, the first air guide plate 18 and the substrate 11 are integrally designed. Of course, in other alternative embodiments, the first air guide plate 18 can be disposed on the substrate 11 by screws, clips, or welding.

[0047] like Figure 2 as well as Figure 12 As shown, in this embodiment, the air conditioning control box further includes an air guide cover 50, which covers the outer side of the base plate 11 and encloses the base plate 11 to define a heat dissipation pipe 51. The heat dissipation pipe 51 extends vertically. The air conditioning control box also includes a heat sink 60, which is located inside the heat dissipation pipe 51 and disposed on the base plate 11. The base plate 11 has a heat dissipation port 111 at the position corresponding to the heat sink 60, and the heat sink 60 exchanges heat with the interior of the control box body 10 through the heat dissipation port 111. The heat sink 60 can further improve the heat dissipation effect, and the design of the air guide cover 50 can gather the external airflow, making the external airflow flow more concentrated over the heat sink 60, resulting in more sufficient heat dissipation and further improving the heat dissipation effect of the air conditioning control box. It should be noted that the heat sink 60, also called a radiator, has a structure and principle that are existing technologies and will not be described in detail here. In this embodiment, the air guide cover 50 can be detached from the base plate 11 by means of screws, clips, etc.

[0048] Furthermore, the system also includes a second air guide plate 52 and a third air guide plate 53. The second air guide plate 52 is inclinedly disposed on the upper side of the air guide cover plate 50, and is configured to gradually move away from the substrate 11 in a direction away from the air guide cover plate 50. The third air guide plate 53 is inclinedly disposed on the lower side of the air guide cover plate 50, and is configured to gradually move away from the substrate 11 in a direction away from the air guide cover plate 50. The design of the second air guide plate 52 and the third air guide plate 53 guides airflow into and out of the heat dissipation duct 51, while reducing eddies at the inlet and outlet of the heat dissipation duct 51.

[0049] The air outlet 17 is located above the air outlet 16. With the air outlet 17 positioned above, cool air from the outside enters the electrical control box through the air inlet and exhausts hot air through the air outlet above, thus creating effective airflow and accelerating the dissipation of internal heat. In this embodiment, the air outlet 17 is a plurality of strip-shaped through holes formed in the left cover plate 13, arranged in a matrix. The strip-shaped through holes effectively prevent insects from entering the electrical control box through the air outlet and damaging electronic components. Of course, in other alternative embodiments, the air outlet 17 can be located on the upper cover plate 12 or the right cover plate 14, and is not limited to the left cover plate 13. The air outlet 17 is also not limited to the structure of a plurality of strip-shaped through holes; it can also be a rectangular, circular, or other shaped opening.

[0050] like Figure 2 and Figure 11 As shown, in this embodiment, the air conditioning control box further includes an air outlet duct 71 connected to the air outlet 17. The air outlet duct 71 is located on the outside of the left side cover plate 13 and extends towards the bottom of the control box body 10, and the air outlet duct 71 is connected to the heat dissipation duct 51 near the bottom of the control box body 10.

[0051] Specifically, the air conditioning control box includes an air outlet cover 70 extending along the direction near the bottom of the control box body 10. The air outlet cover 70 covers the outside of the left cover 13 and, together with the left cover 13, defines the air outlet duct 71. The air outlet 17 is connected to the air outlet duct 71. The air outlet cover 70 has a connecting opening 72 on the side near the base plate 11, and the air outlet duct 71 is connected to the heat dissipation duct 51 through the connecting opening 72. The design of the air outlet duct 71 creates a certain height difference between the air outlet 17 and the air outlet (i.e., the connecting opening) of the air outlet duct 71, preventing rainwater from directly splashing into the control box. On the other hand, driven by the cooling fan of the outdoor unit of the air conditioner, the gas velocity in the cooling pipe 51 is relatively high. The connection between the outlet pipe 71 and the cooling pipe 51 helps to quickly dissipate the heat of the airflow exiting the outlet pipe 71 into the external environment. Furthermore, the high gas velocity in the cooling pipe 51 creates a certain negative pressure when the airflow passes through the connection point (i.e., the connection port) between the outlet pipe 71 and the cooling pipe 51, which helps to extract the hot air from the outlet pipe 71 and improve heat dissipation efficiency. In this embodiment, the outlet cover 70 is connected to the left cover 13 by screws. Of course, in other alternative embodiments, the outlet cover 70 can be connected to the left cover 13 by snap-fit, welding, or other methods.

[0052] It should be noted that the structure of the air outlet duct 71 is not limited to this. In other alternative embodiments, the air outlet duct 71 can be a hollow tube body disposed on the outside of the left cover plate 13. The cross-sectional shape of the hollow tube body can be circular, rectangular, etc. The hollow tube body extends in the direction close to the bottom of the electrical control box body 10. The side of the hollow tube body close to the air outlet 17 is connected to the air outlet 17, and the side away from the air outlet 17 is provided with a connecting port 72 connected to the heat dissipation duct 51.

[0053] In this embodiment, an air outlet guide plate 73 is also included. The air outlet guide plate 73 is located at the connecting port 72 and disposed inside the air guide cover plate 50. The air outlet guide plate 73 and the inner wall of the air guide cover plate 50 together define a funnel-shaped opening, which is connected to the connecting port 72. The cross-sectional area of ​​the funnel-shaped opening is smaller than the cross-sectional area of ​​the heat dissipation pipe. By setting the air outlet guide plate, the flow rate at the connecting port 72 is increased.

[0054] In this embodiment, the end of the air outlet duct 71 furthest from the air outlet 17 is positioned corresponding to the heat sink 60, that is, the connecting port 72 of the air outlet duct 71 is positioned corresponding to the position of the heat sink 60. With this arrangement, the hot air that has undergone heat exchange inside the control box can quickly dissipate heat into the environment using the structure of the heat sink 60.

[0055] Compared to existing technologies, the air conditioning control box provided in this embodiment utilizes the principle of natural rising of hot air. An air inlet is located at the bottom of the control box body, and an air outlet is located above the inlet. This allows for effective convection circulation by introducing cool air from the outside through the inlet and expelling hot air through the outlet, thus accelerating heat dissipation. Furthermore, an air inlet duct is installed at the inlet, and a baffle is installed inside the duct to divide it into a first and a second interconnected air inlet duct. By reducing the cross-sectional area of ​​the first air inlet duct and increasing the cross-sectional area of ​​the second air inlet duct, moisture is prevented from entering the air conditioning control box from the inlet. Simultaneously, an air outlet duct is installed at the outlet, creating a height difference between the outlet and the outlet point (i.e., the connection point) of the duct, preventing rainwater from splashing into the air conditioning control box from the outlet. Additionally, heat sinks are installed on the outside of the control box body to further improve heat dissipation.

[0056] Example 2

[0057] like Figure 13 As shown, this embodiment provides an outdoor unit for an air conditioner. The outdoor unit includes an outdoor unit body and an air conditioner control box 1 as described in Embodiment 1. The outdoor unit body includes a housing 2, a cooling fan 5, and a compressor 6. The housing 2 has a ventilation outlet 4 at its top and a ventilation inlet (not shown) on the side of the housing 2 away from the ventilation outlet 4. The housing 2 has a heat dissipation duct 3, which is connected to both the ventilation outlet 4 and the ventilation inlet. The cooling fan 5, the air conditioner control box 1, and the compressor 6 are sequentially arranged within the heat dissipation duct 3 along the direction away from the ventilation outlet 4. The air inlet and outlet of the air conditioner control box are both connected to the heat dissipation duct.

[0058] Example 3

[0059] This embodiment provides an air conditioner, including an indoor unit and an outdoor unit as described in Embodiment 2. The indoor unit and the outdoor unit are connected together.

[0060] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments and claims of this application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that, unless otherwise stated, “a plurality” refers to two or more; the terms “first,” “second,” “third,” etc., are used only to distinguish and not to describe a particular order or sequence, nor should they be construed as indicating or implying relative importance. The term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items. When the above description relates to drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of this application, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An air conditioner electric control box, characterized by, The air conditioner electric control box comprises an electric control box body, an air inlet pipeline and a baffle, the electric control box body is provided with an air inlet and an air outlet, and the air inlet pipeline is communicated with the air inlet; The baffle is arranged in the air inlet pipeline to prevent water droplets from entering, and the baffle divides the air inlet pipeline into a first air inlet pipeline and a second air inlet pipeline which are communicated with each other, the first air inlet pipeline is communicated with the air inlet, and the cross-sectional area of the first air inlet pipeline is smaller than that of the second air inlet pipeline.

2. The electric control box of an air conditioner according to claim 1, wherein The baffle comprises a first baffle and a second baffle which are arranged in sequence along the airflow direction, the first baffle and the second baffle are arranged on opposite sides of the air inlet pipeline respectively, and the projection parts of the first baffle and the second baffle along the airflow direction are overlapped; the first baffle, the second baffle and the inner wall of the air inlet pipeline jointly define the first air inlet pipeline, and the side of the second baffle away from the first baffle and the inner wall of the air inlet pipeline jointly define the second air inlet pipeline.

3. The electric control box of an air conditioner according to claim 2, wherein The baffle further comprises a third baffle and a fourth baffle, the third baffle is arranged at the end of the first baffle and extends towards the second baffle, and the fourth baffle is arranged at the end of the second baffle and extends towards the first baffle; the first baffle, the second baffle, the third baffle, the fourth baffle and the inner wall of the air inlet pipeline jointly define the first air inlet pipeline; and the side of the second baffle away from the first baffle and the inner wall of the air inlet pipeline jointly define the second air inlet pipeline.

4. The electric control box of an air conditioner according to claim 1, wherein The air inlet is arranged at the bottom of the electric control box body; the air inlet pipeline is a hollow pipe body, one side of the air inlet pipeline close to the air inlet is provided with an air inlet pipeline opening corresponding to the air inlet, the air inlet pipeline opening is communicated with the air inlet, and the other side of the air inlet pipeline away from the air inlet pipeline opening is provided with an air outlet pipeline opening; and the baffle is arranged close to the air inlet pipeline opening.

5. The electric control box of an air conditioner according to claim 4, wherein The air outlet pipeline opening is provided with a mesh baffle, the mesh baffle is provided with a plurality of through holes, and the through holes are arranged in a matrix.

6. The air conditioner electric control box according to claim 1, wherein The air conditioner electric control box further comprises an air guide cover plate, the air guide cover plate is arranged outside the electric control box body and encloses the electric control box body to define a heat dissipation pipeline; the air conditioner electric control box further comprises a heat dissipation fin, the heat dissipation fin is arranged in the heat dissipation pipeline and the electric control box body, the electric control box body is provided with a heat dissipation opening at a position corresponding to the heat dissipation fin, and the heat dissipation fin exchanges heat with the inside of the electric control box body through the heat dissipation opening.

7. The air conditioner electric control box according to claim 6, wherein The air outlet is arranged above the air inlet; the air conditioner electric control box further comprises an air outlet pipeline communicated with the air outlet, the air outlet pipeline is arranged outside the electric control box body and extends towards the bottom of the electric control box body, and the air outlet pipeline is communicated with the heat dissipation pipeline at a position close to the bottom of the electric control box body.

8. The electric control box of an air conditioner according to claim 7, wherein The end of the air outlet pipeline away from the air outlet is arranged corresponding to the heat dissipation fin.

9. An air conditioner outdoor unit characterized by comprising: The air conditioner electric control box comprises an outdoor unit body and the air conditioner electric control box as claimed in any one of claims 1-8; the outdoor unit body has a heat dissipation air duct; the air conditioner electric control box is arranged in the heat dissipation air duct, and the air outlet and the air inlet are respectively communicated with the heat dissipation air duct.

10. An air conditioner characterized by comprising: The air conditioner electric control box comprises an outdoor unit body and the air conditioner electric control box as claimed in any one of claims 1-8; the outdoor unit body has a heat dissipation air duct; the air conditioner electric control box is arranged in the heat dissipation air duct, and the air outlet and the air inlet are respectively communicated with the heat dissipation air duct.

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