Air conditioner outdoor unit

Abstract

The utility model provides an air conditioner outdoor unit, relates to the technical field of air conditioners, and aims to solve the problem that a radiator of an electric control box cannot be effectively ventilated and radiated in the operation process of the conventional air conditioner outdoor unit without a wind separation vertical plate. The air conditioner outdoor unit comprises a machine shell, an electric control box and a draught fan assembly, wherein the electric control box and the draught fan assembly are both arranged in the machine shell and located in a through cavity. The electric control box comprises a box body and a radiator installed outside the box body, the box body is installed on a side plate of the machine shell, the box body is provided with an electronic device cavity and a heat dissipation cavity which are independent from each other, the side plate is provided with an air induction opening communicated with the heat dissipation cavity, and the box body is provided with a first air outlet communicated with the heat dissipation cavity; air flow of the heat dissipation cavity can flow to the radiator through the first air outlet. According to the utility model, the radiator of the electric control box can be effectively ventilated and radiated.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an outdoor unit of an air conditioner. Background Art

[0002] Typically, a split-type air conditioner consists of an indoor unit and an outdoor unit. The outdoor unit's electrical control box is typically mounted on a vertical windshield inside the outdoor unit. The vertical windshield divides the interior of the outdoor unit into two compartments, one for the air chamber and the other for the compressor.

[0003] The electrical control box houses a printed circuit board (PCB) with electronic components mounted on it. In existing air conditioner outdoor units, the front of the electrical control box, housing the electronic components, often faces the compressor cavity, while the back of the box, housing the radiator, faces the air cavity. The radiator, facing the air cavity, effectively dissipates heat as air flows through it driven by the rotation of the fan assembly, effectively dissipating heat from the PCB and electronic components inside the electrical control box.

[0004] However, in order to achieve a compact structure, some existing air conditioner outdoor units have the aforementioned wind-shielding vertical plates removed, resulting in a lack of an independent wind cavity for the air conditioner outdoor unit, which in turn results in the radiator of the electronic control box being unable to obtain effective ventilation and heat dissipation. Utility Model Content

[0005] The first purpose of the present utility model is to provide an air-conditioning outdoor unit to solve the technical problem that the radiator of the electric control box cannot obtain effective ventilation and heat dissipation during the operation of the existing air-conditioning outdoor unit which is not provided with a wind-shielding vertical plate.

[0006] The utility model provides an air-conditioning outdoor unit, including a casing and an electrical control box and a fan assembly both arranged inside the casing, wherein the electrical control box and the fan assembly are in the same through cavity; the electrical control box includes a box body and a radiator installed on the outside of the box body, the box body is installed on the side panel of the casing, and the box body has independent electronic device cavity and heat dissipation cavity, wherein the side panel is provided with an air inlet connected to the heat dissipation cavity, and the box body is provided with a first air outlet connected to the heat dissipation cavity, and the airflow of the heat dissipation cavity can flow to the radiator through the first air outlet.

[0007] By installing the electronic control box on the casing of the air-conditioning outdoor unit, the electronic control box and the fan assembly are placed in the same through cavity, and independent electronic device cavity and heat dissipation cavity are set in the box body. At the same time, an air inlet connected to the heat dissipation cavity is opened on the side panel, and a first air outlet connected to the heat dissipation cavity is opened on the box body. When the air-conditioning outdoor unit is running, under the action of the fan assembly, negative pressure is generated inside the casing, so that wind outside the casing can be introduced into the heat dissipation cavity through the air inlet, and further flows to the radiator through the first air outlet, so that the radiator is effectively ventilated and dissipated, thereby achieving the purpose of dissipating heat to the PCB and electronic components inside the electronic control box.

[0008] Through the above-mentioned arrangement, the air conditioner outdoor unit can still guide the wind outside the casing to the position of the radiator through a separate heat dissipation cavity after the wind-shielding vertical plate is removed to dissipate the heat of the radiator, thereby ensuring the ventilation and heat dissipation effect of the radiator and effectively solving the problems existing in the prior art.

[0009] Furthermore, the housing is further provided with an air outlet communicating with the electronic device cavity. The heat sink has an air inlet and an air outlet, wherein the air inlet faces the first air outlet, and the air outlet faces the air outlet. As the air flows from the heat sink's air inlet to its air outlet, the air entering the heat sink can be used to reduce moisture, thereby ensuring that the air entering the electronic device cavity through the air outlet is relatively dry. This arrangement effectively prevents external moisture from directly entering the electronic device cavity, potentially causing short circuits in the PCB and electronic components.

[0010] Furthermore, the box body includes a mounting wall opposite the side panel and a plurality of side walls disposed around the mounting wall, the box body docking with the side panel via the plurality of side walls; the mounting wall is fixedly connected to a partition extending to the side panel, the partition dividing the inner cavity of the box body into the electronic device cavity and the heat dissipation cavity. This arrangement places the electronic device cavity and the heat dissipation cavity in close proximity, so that when external air enters the heat dissipation cavity through the air inlet and flows through the heat dissipation cavity, it can exchange heat with the electronic device cavity through the partition, thereby removing a portion of the heat from the electronic device cavity. Since the air entering the heat dissipation cavity originates from the outside and has not yet participated in the heat exchange process, the air temperature at this time is relatively low, thereby enhancing the heat exchange effect on the electronic device cavity.

[0011] Furthermore, the partition is provided with a second air outlet, which connects the electronic device cavity with the heat dissipation cavity. This arrangement enables air flow from the electronic device cavity to the air inlet end of the radiator, allowing air carrying heat from the PCB and electronic components to return to the radiator for cooling and heat dissipation, thereby improving heat dissipation efficiency.

[0012] Furthermore, the multiple side walls include a top wall and a bottom wall that are opposite and spaced apart in the vertical direction, and a front wall and a rear wall that are opposite and spaced apart in the front-to-back direction, wherein the partition is located between the top wall and the bottom wall, and the heat dissipation cavity is located above the electronic device cavity; the air supply port is opened on the bottom wall; the mounting wall includes an upper section directly opposite the heat dissipation cavity and a lower section directly opposite the electronic device cavity, the first air outlet is opened on the upper section, and the lower section is used to install the PCB. By arranging the heat dissipation cavity and the electronic device cavity in the vertical direction, the lateral size of the box body can be reduced, thereby reducing the space occupied by the box body in the width direction of the internal casing. By opening the air supply port on the bottom wall, the airflow can flow through the air supply port into the electronic device cavity and cover the entire height area of ​​the electronic device cavity, thereby ensuring the heat dissipation effect on the PCB and electronic components.

[0013] Furthermore, the front wall, bottom wall, and rear wall are provided with device heat dissipation holes that communicate with the electronic device cavity, and the device heat dissipation holes are located near the mounting wall. By locating the device heat dissipation holes near the mounting wall, the device heat dissipation holes are closer to the PCB. This allows external air entering the electronic device cavity to flow out after sufficient heat exchange with the PCB, ensuring a cooling effect on the PCB.

[0014] Furthermore, the top wall extends away from the side panels to form a guide wall, the distal end of which is connected to a windshield wall spaced opposite and opposed to the upper section of the mounting wall. The upper section of the mounting wall, the guide wall, and the windshield wall together form a guide channel opposite the air inlet end of the radiator. This arrangement optimizes the flow path of air from the heat dissipation cavity to the radiator, allowing air flowing out of the heat dissipation cavity to be reliably guided to the air inlet end of the radiator, thereby ensuring efficient ventilation and heat dissipation of the radiator.

[0015] The air conditioner outdoor unit further includes an electrical appliance cover plate, which is connected to the exterior of the side panel and covers the air inlet. The electrical appliance cover plate defines an air inlet that communicates with the air inlet. The electrical appliance cover plate shields the air inlet, preventing impurities from entering through the air inlet and damaging the radiator, PCB, and electronic components, thereby providing a protective effect on the electrical control box.

[0016] Furthermore, the electrical appliance cover includes a cover portion, wherein the cover portion is spaced apart from the side panel to form a first air inlet channel connected to the air inlet, and the first air inlet channel and the electronic device cavity are respectively arranged on two opposite sides of the side panel; the bottom end of the cover portion is bent toward the side panel to form a bottom panel connected to the side panel, and the air inlet includes a first air inlet opened on the bottom panel. The provision of the first air inlet channel, on the one hand, can guide the external air so that the external air can smoothly enter the heat dissipation cavity through the air inlet; on the other hand, the first air inlet channel can be used to increase the contact time between the external air entering the heat dissipation cavity and the side panel, so that the external air can achieve a certain degree of cooling of the electronic device cavity through contact heat exchange during the flow of the first air inlet channel, thereby ensuring the cooling effect on the electronic device cavity.

[0017] Furthermore, the electrical appliance cover also includes a handle and a top plate, wherein the handle is connected to the cover at an angle, the top plate connects the handle and the side panels, and a second air inlet channel connected to the first air inlet channel is formed between the top plate and the handle; the air inlet also includes a second air inlet opened in the handle. By providing the handle and the top plate connecting the handle and the side panels in the electrical appliance cover, on the one hand, a force application point is provided for the operator, making it easier for the operator to carry the housing; on the other hand, more channels are provided for external air to enter the heat dissipation cavity, allowing as much external air as possible to enter the heat dissipation cavity to achieve ventilation and heat dissipation of the radiator, thereby increasing the flow of external air and improving the ventilation and heat dissipation effect.

[0018] Furthermore, the opening of the box body is arranged opposite to the side panel, and the side panel closes the opening; or, the electric control box further includes a box cover, which is arranged on the box body and closes the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 This is a front view of the installation of the electric control box of the air conditioner outdoor unit provided by the embodiment of the present utility model, in which the arrows indicate the direction of airflow;

[0021] Figure 2 for Figure 1 A magnified view of the local structure at point A;

[0022] Figure 3 A side view of the installation of the electric control box of the air conditioner outdoor unit provided by the embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the main structure of the electric control box of the air conditioner outdoor unit provided by an embodiment of the utility model;

[0024] Figure 5 A bottom view of the main structure of the electric control box of the air conditioner outdoor unit provided by an embodiment of the utility model;

[0025] Figure 6 A front view of the main structure of the electric control box of the air conditioner outdoor unit provided by an embodiment of the utility model;

[0026] Figure 7 A rear view of the main structure of the electric control box of the air conditioner outdoor unit provided by an embodiment of the utility model;

[0027] Figure 8 This is a schematic structural diagram of an electrical cover plate of an air conditioner outdoor unit provided by an embodiment of the present utility model.

[0028] Description of reference numerals:

[0029] 100- housing; 200- electric control box; 300- electrical cover;

[0030] 110-side panel; 111-air inlet;

[0031] 210 - box body; 211 - mounting wall; 2111 - upper section; 2112 - lower section; 212 - top wall; 213 - bottom wall; 214 - front wall; 215 - rear wall; 216 - air guide wall; 217 - wind shield; 220 - electronic device cavity; 221 - air supply port; 230 - heat dissipation cavity; 231 - first air outlet; 240 - radiator; 241 - air inlet; 242 - air outlet; 250 - partition; 251 - second air outlet; 260 - air guide channel; 270 - device heat dissipation holes; 280 - PCB; 290 - electronic components;

[0032] 310 - air inlet; 311 - first air inlet; 312 - second air inlet; 320 - cover plate; 330 - first air inlet channel; 340 - bottom plate; 350 - handle; 360 - top plate; 370 - second air inlet channel. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] This embodiment provides an air conditioner outdoor unit, including a casing 100 and an electric control box 200 and a fan assembly both disposed inside the casing 100 . The electric control box 200 and the fan assembly are located in a through cavity.

[0035] Figure 1 This is a front view of the installation of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment, where the arrows in the figure indicate the direction of airflow; Figure 2 for Figure 1 A magnified view of the local structure at point A; Figure 3 This is a side view of the installation of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment. Figures 1 to 3 As shown, the electrical control box 200 includes a box body 210 and a radiator 240 installed on the outside of the box body 210. The box body 210 is installed on the side panel 110 of the casing 100. The box body 210 has an independent electronic device cavity 220 and a heat dissipation cavity 230, wherein the side panel 110 is provided with an air inlet 111 connected to the heat dissipation cavity 230, and the box body 210 is provided with a first air outlet 231 connected to the heat dissipation cavity 230. The airflow of the heat dissipation cavity 230 can flow to the radiator 240 through the first air outlet 231.

[0036] By installing the electronic control box 200 on the casing 100 of the air-conditioning outdoor unit, the electronic control box 200 and the fan assembly are in the same through cavity, and independent electronic device cavity 220 and heat dissipation cavity 230 are set in the box body 210. At the same time, an air inlet 111 connected to the heat dissipation cavity 230 is opened on the side panel 110, and a first air outlet 231 connected to the heat dissipation cavity 230 is opened on the box body 210. When the air-conditioning outdoor unit is running, under the action of the fan assembly, negative pressure is generated inside the casing 100, so that the wind outside the casing 100 can be introduced into the heat dissipation cavity 230 through the air inlet 111, and further flows to the radiator 240 from the first air outlet 231, so that the radiator 240 is effectively ventilated and dissipated, thereby achieving the purpose of dissipating heat to the PCB 280 and electronic components 290 inside the electronic control box 200.

[0037] Through the above-mentioned arrangement, the air conditioner outdoor unit can still guide the wind outside the casing 100 to the position of the radiator 240 through the separate heat dissipation cavity 230 after the wind-shielding vertical plate is removed, so as to dissipate the heat of the radiator 240, thereby ensuring the ventilation and heat dissipation effect of the radiator 240 and solving the problems existing in the prior art.

[0038] Figure 4 A schematic diagram of the main structure of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment; Figure 5 This is a bottom view of the main structure of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment. Figure 1 , and combined with Figure 4 and Figure 5In this embodiment, the box body 210 is further provided with an air supply port 221 communicating with the electronic device cavity 220 , and the radiator 240 has an air inlet end 241 and an air outlet end 242 , wherein the air inlet end 241 faces the first air outlet 231 , and the air outlet end 242 faces the air supply port 221 .

[0039] During the operation of the air conditioner outdoor unit, under the action of the fan assembly, the air outside the casing 100 enters the heat dissipation cavity 230 through the air inlet 111 opened on the side panel 110, and further flows to the air inlet end 241 of the radiator 240 through the first air outlet 231, so as to ventilate and dissipate heat for the radiator 240; thereafter, the air that has completed the ventilation and heat dissipation of the radiator 240 will further enter the electronic device cavity 220 through the air supply port 221 opened in the box body 210, so as to cool the PCB 280 and electronic components 290 inside the electronic device cavity 220.

[0040] In the process of the above-mentioned air flowing through the air inlet end 241 of the radiator 240 to the air outlet end 242 thereof, the moisture content can be reduced by utilizing the air inlet of the radiator 240, so that the air entering the electronic device cavity 220 through the air supply port 221 is relatively dry air. This setting can effectively prevent the short circuit problem of PCB280 and electronic components 290 caused by external humid gas directly entering the electronic device cavity 220.

[0041] Please continue to refer to Figure 1 and Figure 4 In this embodiment, the box body 210 may include a mounting wall 211 opposite to the side panel 110 and multiple side walls arranged around the mounting wall 211, wherein the box body 210 is docked with the side panel 110 through the multiple side walls; the mounting wall 211 is fixedly connected to a partition 250 extending to the side panel 110, and the partition 250 separates the inner cavity of the box body 210 into an electronic device cavity 220 and a heat dissipation cavity 230.

[0042] This form of arranging a partition 250 inside the box body 210 to separate the inner cavity of the box body 210 into an electronic device cavity 220 and a heat dissipation cavity 230, on the one hand, makes the electronic device cavity 220 and the heat dissipation cavity 230 close to each other, so that when the external air enters the heat dissipation cavity 230 through the air inlet 111 and flows in the heat dissipation cavity 230, it can exchange heat with the electronic device cavity 220 through the partition 250 to take away part of the heat of the electronic device cavity 220. Since the air entering the heat dissipation cavity 230 comes from the outside and has not yet participated in the heat exchange process, the air temperature at this time is relatively low, which can enhance the heat exchange effect on the electronic device cavity 220; on the other hand, it can also simplify the structure of the box body 210 and reduce the manufacturing cost of the box body 210.

[0043] In this embodiment, the casing 100 has a left side panel close to the fan assembly and a right side panel opposite to the left side panel, wherein the above-mentioned side panel 110 is the right side panel, that is, the electrical control box 200 is installed on the right side panel, and the box body 210 of the electrical control box 200 is docked with the right side panel to form an independent electronic device cavity 220 and a heat dissipation cavity 230.

[0044] By installing the electric control box 200 on the right side panel, the electric control box 200 is kept at a certain distance from the fan assembly inside the housing 100, which can reduce the interference of the fan assembly on the electric control box 200 during operation, thereby ensuring the working reliability of the electric control box 200.

[0045] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the partition plate 250 is provided with a second air outlet 251 , wherein the second air outlet 251 communicates with the electronic device cavity 220 and the heat dissipation cavity 230 .

[0046] By opening a second air outlet 251 on the partition 250 to connect the electronic device cavity 220 and the heat dissipation cavity 230, the air entering the electronic device cavity 220 from the air supply port 221 can flow to the heat dissipation cavity 230 through the second air outlet 251 opened on the partition 250 after completing the heat exchange with the PCB 280 and the electronic components 290, and further flow to the air inlet end 241 of the radiator 240 through the first air outlet 231.

[0047] This arrangement enables air flow from the electronic device cavity 220 to the air inlet end 241 of the radiator 240, so that air carrying heat from the PCB 280 and electronic components 290 can return to the radiator 240 for cooling and heat dissipation, thereby improving heat dissipation efficiency.

[0048] Figure 6 A front view of the main structure of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment; Figure 7 This is a rear view of the main structure of the electric control box 200 of the air conditioner outdoor unit provided in this embodiment. Figure 1 、 Figure 4 and Figure 5 , and combined with Figure 6 and Figure 7In this embodiment, the multiple side walls may include a top wall 212 and a bottom wall 213 that are opposed and spaced apart in the vertical direction, and a front wall 214 and a rear wall 215 that are opposed and spaced apart in the front-to-back direction. A partition 250 is located between the top wall 212 and the bottom wall 213, and the heat dissipation cavity 230 is located above the electronic device cavity 220. The air outlet 221 is provided in the bottom wall 213. The mounting wall 211 includes an upper section 2111 that faces the heat dissipation cavity 230 and a lower section 2112 that faces the electronic device cavity 220. The first air outlet 231 is provided in the upper section 2111, and the lower section 2112 is used to mount the PCB 280. In other words, the partition 250 is generally parallel to the top wall 212 and the bottom wall 213, thereby dividing the interior of the box body 210 into the heat dissipation cavity 230 and the electronic device cavity 220, which are arranged in the vertical direction.

[0049] It should be noted that, in this embodiment, the “left and right directions” can be Figure 1 and Figure 4 The arrows ab in the figure indicate that the left side plate and the right side plate are relative to each other along the direction indicated by the arrows ab; the “front and back direction” can be represented by Figure 3 and Figure 4 The arrow cd in the figure indicates that the “up and down directions” can be represented by Figure 3 and Figure 4 It is represented by the arrow ef in the figure.

[0050] By arranging the heat dissipation cavity 230 and the electronic device cavity 220 in a vertical direction, the lateral dimensions of the housing 210 can be reduced, thereby reducing the width of the internal space of the housing 100 occupied by the housing 210. By providing the air outlet 221 on the bottom wall 213, airflow entering the electronic device cavity 220 through the air outlet 221 can flow over the entire height of the electronic device cavity 220, ensuring effective heat dissipation for the PCB 280 and electronic components 290.

[0051] In this embodiment, there are multiple air outlets 221, which are dispersedly arranged on the bottom wall 213. This arrangement not only increases the distribution area of ​​the air outlets 221 on the bottom wall 213, allowing external air to enter different locations of the electronic device cavity 220 through multiple locations on the bottom wall 213 to improve ventilation and heat dissipation, but also increases the air intake volume of the electronic device cavity 220, further improving ventilation and heat dissipation.

[0052] Please continue to refer to Figures 4 to 7 In this embodiment, the front wall 214 , the bottom wall 213 and the rear wall 215 are provided with device heat dissipation holes 270 communicating with the electronic device cavity 220 , wherein the device heat dissipation holes 270 are arranged close to the mounting wall 211 .

[0053] During the operation of the air conditioner outdoor unit, after the air enters the electronic device cavity 220 through the air supply port 221 to complete the ventilation and heat dissipation of the PCB 280 and the electronic components 290 , it will flow out through the device heat dissipation holes 270 .

[0054] By setting the device heat dissipation hole 270 close to the installation wall 211, the device heat dissipation hole 270 is closer to the PCB280, so that the external wind entering the electronic device cavity 220 can flow out after sufficient heat exchange with the PCB280, ensuring the cooling effect on the PCB280.

[0055] In addition, by providing device heat dissipation holes 270 on the front wall 214, the bottom wall 213 and the rear wall 215, negative pressure can be generated at the three positions of the front wall 214, the bottom wall 213 and the rear wall 215, so that the air in the electronic device cavity 220 can flow out from the three positions of the front wall 214, the bottom wall 213 and the rear wall 215, that is, the air flow path surrounds the PCB 280 on three sides, thereby increasing the contact area between the air and the PCB 280, and further enhancing the ventilation and heat dissipation effect of the PCB 280 and the electronic components 290.

[0056] Please continue to refer to Figures 4 to 7 In this embodiment, there are multiple device heat dissipation holes 270 set on the front wall 214, multiple device heat dissipation holes 270 set on the bottom wall 213, and multiple device heat dissipation holes 270 set on the rear wall 215. Among them, the multiple device heat dissipation holes 270 set on the front wall 214 are dispersed along the edge of the front wall 214, the multiple device heat dissipation holes 270 set on the bottom wall 213 are dispersed along the edge of the bottom wall 213, and the multiple device heat dissipation holes 270 set on the rear wall 215 are dispersed along the edge of the rear wall 215.

[0057] Please continue to refer to Figure 1 In this embodiment, the top wall 212 extends in a direction away from the side panel 110 to form a guide wall 216, and the end of the guide wall 216 is connected to a windshield wall 217 opposite to and spaced from the upper section 2111 of the mounting wall 211, wherein the upper section 2111 of the mounting wall 211, the guide wall 216 and the windshield wall 217 form a guide channel 260 opposite to the air inlet end 241 of the radiator 240.

[0058] After the air in the heat dissipation cavity 230 flows out through the first air outlet 231, it will continue to flow forward under the guidance of the guide wall 216. When this part of the air flows to the end of the guide wall 216 ( Figure 1 When the left end of the guide wall 216 is viewed from a lower angle, it will be blocked by the wind shield wall 217 to change the direction of the airflow, so that the airflow flows downward along the guide channel 260 to the air inlet end 241 of the radiator 240 to ventilate and dissipate heat for the radiator 240.

[0059] This structural form of the box body 210 optimizes the flow path of the airflow from the heat dissipation cavity 230 to the radiator 240, so that the air flowing out of the heat dissipation cavity 230 can be reliably guided to the air inlet end 241 of the radiator 240, ensuring the ventilation and heat dissipation efficiency of the radiator 240.

[0060] Figure 8 This is a structural diagram of the electrical cover 300 of the air conditioner outdoor unit provided in this embodiment. Figure 1 , and combined with Figure 8 In this embodiment, the air conditioner outdoor unit may further include an electrical cover 300 . Specifically, the electrical cover 300 is connected to the outside of the side panel 110 and covers the air vent 111 . The electrical cover 300 is provided with an air inlet 310 connected to the air vent 111 .

[0061] During the operation of the air conditioner outdoor unit, under the action of the fan assembly, negative pressure is generated inside the casing 100. This negative pressure allows air from the external environment to enter from the air inlet 310 opened on the electrical cover 300, and further flow toward the air inlet 111 to enter the heat dissipation cavity 230 and participate in the heat dissipation of the radiator 240, PCB280 and electronic components 290 in the subsequent path.

[0062] The setting of the above-mentioned electrical cover 300 can shield the air vent 111, preventing impurities from the external environment from entering through the air vent 111 and causing damage to the radiator 240, PCB280 and electronic components 290, thereby playing a certain protective role for the electrical control box 200.

[0063] In this embodiment, the air inlet 111 provided on the side panel 110 is formed by a wiring window of the air conditioner outdoor unit.

[0064] Please continue to refer to Figure 1 In this embodiment, the electrical cover 300 may include a cover portion 320, wherein the cover portion 320 is spaced apart from the side panel 110 to form a first air inlet channel 330 connected to the air inlet 111, and the first air inlet channel 330 and the electronic device cavity 220 are respectively arranged on two opposite sides of the side panel 110; the bottom end of the cover portion 320 is bent toward the side panel 110 to form a bottom plate portion 340 connected to the side panel 110, and the air inlet 310 includes a first air inlet 311 opened on the bottom plate portion 340.

[0065] This arrangement allows external air to enter through the first air inlet 311 provided on the bottom plate 340 of the electrical appliance cover 300, and flow along the first air inlet channel 330 toward the air inlet 111, and then enter the heat dissipation cavity 230 through the air inlet 111. The arrangement of the first air inlet channel 330, on the one hand, can guide the external air so that the external air can smoothly enter the heat dissipation cavity 230 through the air inlet 111. On the other hand, the first air inlet channel 330 can also be used to increase the contact time between the external air and the side panel 110 before entering the heat dissipation cavity 230. This allows the external air to cool the electronic device cavity 220 to a certain extent through contact heat exchange during its flow through the first air inlet channel 330, thereby ensuring a cooling effect on the electronic device cavity 220.

[0066] Please continue to refer to Figure 1 、 Figure 2 and Figure 8 In this embodiment, the electrical appliance cover 300 may further include a handle portion 350 and a top plate portion 360. Specifically, the handle portion 350 is connected to the cover portion 320 at an angle, the top plate portion 360 connects the handle portion 350 and the side panel 110, and a second air inlet channel 370 connected to the first air inlet channel 330 is formed between the top plate portion 360 and the handle portion 350; the air inlet 310 may further include a second air inlet 312 opened on the handle portion 350.

[0067] During the operation of the air conditioner outdoor unit, part of the external air enters the first air inlet channel 330 from the first air inlet 311 opened on the bottom plate portion 340, and the other part enters the second air inlet channel 370 from the second air inlet 312 opened on the handle portion 350, and further enters the heat dissipation cavity 230 through the air inlet 111 to exchange heat and cool the radiator 240, PCB 280 and electronic components 290 in the subsequent path. The flow process of the external air in the first air inlet channel 330 and the second air inlet channel 370 and the subsequent flow path can be referred to. Figure 1 Indicated by the arrow.

[0068] By providing a handle portion 350 and a top plate portion 360 connecting the handle portion 350 and the side panel 110 in the electrical cover 300, on the one hand, a force application point is provided for the operator, making it easier for the operator to carry the casing 100. On the other hand, a channel for external air to enter the heat dissipation cavity 230 is increased, so that external air can enter the heat dissipation cavity 230 as much as possible to achieve ventilation and heat dissipation of the radiator 240, thereby increasing the flow rate of external air and improving the ventilation and heat dissipation effect.

[0069] In this embodiment, the second air inlet channel 370 is opposite to the air inlet 111. This arrangement allows external air flowing through the second air inlet channel 370 to enter the heat dissipation cavity 230 directly through the air inlet 111, thereby optimizing the air flow path from the second air inlet channel 370 to the heat dissipation cavity 230, reducing the airflow resistance from the second air inlet channel 370 to the heat dissipation cavity 230, and ensuring smooth air flow from the second air inlet channel 370 to the heat dissipation cavity 230.

[0070] Please continue to refer to Figure 1 In this embodiment, the handle portion 350 is substantially at a 90° angle to the cover portion 320. This arrangement facilitates the operator to apply a pulling force to the handle portion 350, thereby improving the convenience of carrying the air conditioner outdoor unit.

[0071] During operation of the air conditioner outdoor unit, the fan assembly drives external air into the first air inlet 311 provided on the bottom plate 340 of the electrical appliance cover 300, enters the first air inlet duct 330, and enters the second air inlet duct 370 through the second air inlet 312 provided on the handle 350 of the electrical appliance cover 300. The air in the first air inlet duct 330 and the second air inlet duct 370 further enters the heat dissipation cavity 230 through the air inlet 111 provided on the side plate 110; after flowing through the heat dissipation cavity 230, the air enters the guide channel 260 through the first air outlet 231, and under the guidance of the guide channel 260, flows to the air inlet end 241 of the radiator 240, thereby ventilating and cooling the radiator 240; After flowing through the radiator 240 to reduce moisture, the air flows out from the air outlet 242 of the radiator 240 and can enter the electronic device cavity 220 through the air supply port 221 opened on the bottom wall 213 of the box body 210 to dissipate heat for the PCB 280 and the electronic components 290; after completing the heat dissipation of the PCB 280 and the electronic components 290, a part of the air flows out through the device heat dissipation holes 270 opened on the bottom wall 213, the front wall 214 and the rear wall 215 of the box body 210, and the other part of the air enters the heat dissipation cavity 230 through the second air outlet 251 opened on the partition 250, and further flows to the air inlet end 241 of the radiator 240 through the first air outlet 231, completing the heat dissipation process.

[0072] In addition, please refer to Figure 1 and Figure 2 In this embodiment, the opening of the box body 210 is arranged opposite to the side panel, and the side panel closes the opening. However, in other embodiments of the present application, the electric control box 200 may further include a box cover, which is arranged on the box body 210 and closes the opening.

[0073] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

[0074] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0075] In the above embodiments, the descriptions of directions such as “up”, “down”, “left”, “right”, “front”, “back”, “inside”, “outside”, and “side” are all based on the drawings.

[0076] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner outdoor unit, characterized in that: The invention comprises a housing (100) and an electric control box (200) and a fan assembly both arranged inside the housing (100), wherein the electric control box (200) and the fan assembly are both in a through cavity; the electric control box (200) comprises a box body (210) and a radiator (240) installed outside the box body (210), wherein the box body (210) is installed on a side plate (110) of the housing (100), and the box body (210) has an independent electronic device cavity (220) and a heat dissipation cavity (230), wherein the side plate (110) is provided with an air inlet (111) communicating with the heat dissipation cavity (230), and the box body (210) is provided with a first air outlet (231) communicating with the heat dissipation cavity (230), and the airflow of the heat dissipation cavity (230) can flow to the radiator (240) through the first air outlet (231).

2. The air conditioner outdoor unit according to claim 1, characterized in that: The box body (210) is further provided with an air supply port (221) in communication with the electronic device cavity (220); the radiator (240) has an air inlet end (241) and an air outlet end (242); wherein the air inlet end (241) faces the first air outlet (231), and the air outlet end (242) faces the air supply port (221).

3. The air conditioner outdoor unit according to claim 2, characterized in that: The box body (210) comprises a mounting wall (211) opposite to the side panel (110) and a plurality of side walls arranged around the mounting wall (211), and the box body (210) is docked with the side panel (110) via the plurality of side walls; the mounting wall (211) is fixedly connected to a partition (250) extending to the side panel (110), and the partition (250) separates the inner cavity of the box body (210) into the electronic device cavity (220) and the heat dissipation cavity (230).

4. The air conditioner outdoor unit according to claim 3, characterized in that: The partition (250) is provided with a second air outlet (251), and the second air outlet (251) is connected to the electronic device cavity (220) and the heat dissipation cavity (230).

5. The air conditioner outdoor unit according to claim 3, characterized in that: The multiple side walls include a top wall (212) and a bottom wall (213) that are opposite and spaced apart in the up-down direction, and a front wall (214) and a rear wall (215) that are opposite and spaced apart in the front-back direction, wherein the partition (250) is located between the top wall (212) and the bottom wall (213), and the heat dissipation cavity (230) is located above the electronic device cavity (220); the air supply port (221) is opened on the bottom wall (213); the installation wall (211) includes an upper section (2111) facing the heat dissipation cavity (230) and a lower section (2112) facing the electronic device cavity (220); the first air outlet (231) is opened on the upper section (2111), and the lower section (2112) is used for installing a PCB (280).

6. The air conditioner outdoor unit according to claim 5, characterized in that: The front wall (214), the bottom wall (213) and the rear wall (215) are provided with a device heat dissipation hole (270) in communication with the electronic device cavity (220), and the device heat dissipation hole (270) is arranged close to the mounting wall (211); and / or, the top wall (212) extends in a direction away from the side plate (110) to form a guide wall (216), and the end of the guide wall (216) is connected to a windshield wall (217) opposite to and spaced from the upper section (2111) of the mounting wall (211), wherein the upper section (2111) of the mounting wall (211), the guide wall (216) and the windshield wall (217) form a guide channel (260) opposite to the air inlet end (241) of the radiator (240).

7. The air conditioner outdoor unit according to any one of claims 1 to 6, characterized in that: The air conditioner outdoor unit further comprises an electrical appliance cover plate (300), the electrical appliance cover plate (300) being connected to the outside of the side plate (110) and covering the air inlet (111), and the electrical appliance cover plate (300) being provided with an air inlet (310) communicating with the air inlet (111).

8. The air conditioner outdoor unit according to claim 7, characterized in that: The electrical appliance cover (300) includes a cover portion (320), wherein the cover portion (320) is spaced apart from the side panel (110) to form a first air inlet channel (330) connected to the air inlet (111), and the first air inlet channel (330) and the electronic device cavity (220) are respectively arranged on two opposite sides of the side panel (110); the bottom end of the cover portion (320) is bent toward the side panel (110) to form a bottom plate portion (340) connected to the side panel (110), and the air inlet (310) includes a first air inlet (311) opened on the bottom plate portion (340).

9. The air conditioner outdoor unit according to claim 8, characterized in that: The electrical appliance cover (300) further includes a handle portion (350) and a top plate portion (360), wherein the handle portion (350) is connected to the cover portion (320) at an angle, the top plate portion (360) connects the handle portion (350) and the side panel (110), and a second air inlet channel (370) connected to the first air inlet channel (330) is formed between the top plate portion (360) and the handle portion (350); the air inlet (310) further includes a second air inlet (312) opened in the handle portion (350).

10. The air conditioner outdoor unit according to claim 1, characterized in that: The opening of the box body (210) is arranged opposite to the side panel, and the side panel closes the opening; or, the electric control box (200) further comprises a box cover, which is arranged on the box body (210) and closes the opening.

Images