Outdoor unit of air conditioner

Abstract

The utility model discloses an outdoor unit of an air conditioner, which comprises a casing, an air inlet pipe and an air outlet pipe. The partition plate is arranged in the shell and divides the mounting cavity into a press cavity and a fan cavity; a compressor; a heat exchange assembly; an outdoor fan; an electric control box; the electric control box comprises an electric control box body, and the electric control box body stretches across the partition plate; the circuit board is arranged in the electric control box body; the electric control box body comprises a main box body, the main box body is provided with a first side wall located in the fan cavity, and the first side wall is provided with heat dissipation air outlet holes; and the first baffle is connected to the main box body and located in the fan cavity, the first baffle at least partially shields the heat dissipation air outlet hole in the vertical direction of the machine shell, and the first baffle and the first side wall are arranged in the left-right direction of the machine shell at intervals so as to form an air guide channel communicating with the heat dissipation air outlet hole. Therefore, by arranging the air conditioner outdoor unit, the heat dissipation effect and the rainproof effect of the circuit board can be considered at the same time, and therefore the working stability of the circuit board is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field especially is related to a kind of outdoor unit of air conditioner. BACKGROUND

[0002] The electrolytic capacitor on the PCB inside the electrical box in air conditioner needs effective air cooling heat dissipation.If heat dissipation is poor, the life of the entire air conditioning system is affected.

[0003] In the related art, the electrical box air cooling design scheme published in the industry cannot meet the increasingly stringent experimental standards and harsh use environment (heat generation experiment and rain experiment cannot complete effective compatibility), if the heat dissipation of the circuit board is poor, the service life of the air conditioner is shortened; if the rain experiment cannot be met, the machine is easily short-circuited, and the machine is scrapped. Therefore, it is very necessary to design an electrical box design that can meet both heat dissipation and rain experiment. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide an outdoor unit of air conditioner, which can simultaneously consider the heat dissipation effect and rainproof effect of the circuit board.

[0005] According to the outdoor unit of air conditioner of the utility model first aspect, including: shell, the shell inside defines installation cavity, the shell is formed with air inlet and air outlet; partition, the partition is set in the shell and separates the installation cavity into compressor cavity and fan cavity; compressor, the compressor is set in the compressor cavity; heat exchange assembly, the heat exchange assembly is set in the fan cavity; outdoor fan, the outdoor fan is set in the fan cavity, the outdoor fan is used for introducing the airflow outside the shell into the fan cavity from the air inlet, and outputting outward from the air outlet after heat exchange through the heat exchange assembly; electrical control box, the electrical control box is set in the installation cavity; the electrical control box includes: electrical control box body, the electrical control box body spans above the partition; circuit board, the circuit board is set in the electrical control box body; wherein, the electrical control box body includes: main box body, the main box body has first side wall in the fan cavity, the first side wall is provided with heat dissipation air outlet hole; first baffle, the first baffle is connected to the main box body and located in the fan cavity, the first baffle at least partially shields the heat dissipation air outlet hole along the up-down direction of the shell, the first baffle and the first side wall are spaced apart along the left-right direction of the shell to form a wind guide channel communicated with the heat dissipation air outlet hole.

[0006] The first baffle is located on one side of the first side wall close to the outdoor fan, and the first baffle shields the heat dissipation air outlet hole in the up-down direction of the casing, so that the risk of the circuit board being short-circuited and damaged due to the water droplets (such as rain and snow) in the casing being splashed into the electric control box body by the outdoor fan through the heat dissipation air outlet hole under the stirring of the outdoor fan can be reduced, the rainproof effect of the circuit board is improved, and the service life of the circuit board is prolonged; after heat exchange of external airflow in the electric control box body, the heat-exchanged airflow flows towards the heat dissipation air outlet hole under the negative pressure of the outdoor fan, and after the heat-exchanged airflow flows out of the heat dissipation air outlet hole, the heat-exchanged airflow continues to flow towards the first baffle, and after being blocked by the first baffle, the heat-exchanged airflow flows along the opening of the first baffle in other directions to the outside of the electric control box body, so that the continuous guiding and heat exchange effect of the heat-exchanged airflow in the electric control box body can be achieved, and the heat dissipation efficiency of the circuit board is improved, and the normal operation of the circuit board is ensured.

[0007] Therefore, by arranging the outdoor unit of the air conditioner, the heat dissipation effect and the rainproof effect of the circuit board can be simultaneously considered, and the working stability of the circuit board is improved.

[0008] In some examples of the utility model, along the thickness direction of the first baffle, the distance between the first baffle and the first side wall is L1, and L1 satisfies the relationship: 30mm >= L1 >= 5mm.

[0009] In some examples of the utility model, the first baffle extends in the up-down direction, and the lower edge of the first side wall is not lower than the lower edge of the first baffle.

[0010] In some examples of the utility model, the upper end of the first baffle is bently connected with the main box body, and the lower end of the first baffle is provided with a turned edge extending towards the first side wall.

[0011] In some examples of the utility model, along the thickness direction of the first baffle, the distance between the first baffle and the first side wall is L1, and the width of the turned edge is L2, and L1 and L2 satisfy the relationship: L1 <= L2.

[0012] In some examples of the utility model, the electric control box body further comprises a second baffle, the second baffle is arranged in the main box body, in the left-right direction of the casing, the second baffle is located between the circuit board and the first side wall, and a ventilation gap is left between the second baffle and the main box body.

[0013] In some examples of the utility model, the second baffle extends in the up-down direction, the upper end of the second baffle is connected with the top wall of the main box body, and the lower end of the second baffle is arranged in a spaced mode with the bottom of the main box body to form the ventilation gap.

[0014] In some examples of the present application, the plurality of heat dissipation air outlets are arranged along the length direction of the first side wall, and the heat dissipation air outlet is configured in a strip shape, and the width of the heat dissipation air outlet is W, which satisfies the relationship W≤4mm.

[0015] In some examples of the present application, one side of the main box body in the press cavity is arranged in an open manner to form a heat dissipation air inlet.

[0016] In some examples of the present application, the bottom wall of the main box body is provided with a first ventilation hole, and the first ventilation hole is located below the circuit board; and / or the bottom wall of the main box body is downwardly protruding to form a protruding portion, and the protruding portion is provided with a second ventilation hole, and the second ventilation hole is located below the circuit board.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0019] Figure 1 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0020] Figure 2 is a partial structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0021] Figure 3 is a structural schematic diagram of an electric control box according to an embodiment of the present application;

[0022] Figure 4 is an exploded view of an electric control box according to an embodiment of the present application;

[0023] Figure 5 is another exploded view of an electric control box according to an embodiment of the present application;

[0024] Figure 6 is a front view of an electric control box according to an embodiment of the present application;

[0025] Figure 7 is Figure 6 an enlarged view of area A in FIG.

[0026] Figure 8 is a sectional view of an electric control box according to an embodiment of the present application;

[0027] Figure 9 is a cross-sectional view of the main box body, the first baffle and the second baffle according to the embodiment of the utility model;

[0028] Figure 10 is a partial structure schematic view of the electric control box body according to the embodiment of the utility model;

[0029] Figure 11 is another partial structure schematic view of the electric control box body according to the embodiment of the utility model;

[0030] Figure 12 is another partial structure side view of the electric control box body according to the embodiment of the utility model;

[0031] Figure 13 is another angle structure schematic view of another partial structure of the electric control box body according to the embodiment of the utility model.

[0032] Reference signs:

[0033] 100, air conditioner outdoor unit;

[0034] 1, casing; 11, mounting cavity; 111, compressor cavity; 112, fan cavity; 12, air inlet; 13, air outlet;

[0035] 2, partition; 3, compressor; 4, heat exchange assembly; 5, outdoor fan;

[0036] 6, electric control box; 61, electric control box body; 611, main box body; 6111, first side wall; 6112, heat dissipation air outlet hole; 6113, heat dissipation air inlet hole; 6114, first ventilation hole; 6115, protruding part; 6116, second ventilation hole; 612, first baffle; 6121, flange; 613, second baffle; 62, circuit board;

[0037] 7, ventilation gap. DETAILED DESCRIPTION

[0038] The embodiments of the utility model are described in detail below, and the embodiments described with reference to the drawings are exemplary.

[0039] The following refers to Figures 1-13 The air conditioner outdoor unit 100 according to the embodiment of the utility model is described below, which can simultaneously consider the heat dissipation effect and the rainproof effect of the circuit board 62.

[0040] Combined Figures 1-13 As shown in the drawings, the air conditioner outdoor unit 100 according to the first aspect embodiment of the utility model comprises a casing 1, a partition 2, a compressor 3, a heat exchange assembly 4, an outdoor fan 5 and an electric control box 6. Among them, the casing 1 is mainly used as the external contour structural member of the air conditioner outdoor unit 100.

[0041] The air conditioner indoor unit and the air conditioner outdoor unit 100 are connected by pipes to transfer refrigerant. The air conditioner indoor unit comprises an indoor heat exchanger and an indoor fan. The air conditioner outdoor unit 100 comprises a compressor 3, a four-way valve, a heat exchange assembly 4 (outdoor heat exchanger), an outdoor fan 5 and a throttling device. The compressor 3, the outdoor heat exchanger, the throttling device and the indoor heat exchanger connected in sequence form a refrigerant circuit, and the refrigerant circulates in the refrigerant circuit, exchanges heat with air through the outdoor heat exchanger and the indoor heat exchanger respectively to realize the cooling mode or the heating mode of the air conditioner.

[0042] The compressor 3 is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form high-pressure refrigerant.

[0043] The outdoor heat exchanger is configured to exchange heat between outdoor air and refrigerant transferred in the outdoor heat exchanger. For example, the outdoor heat exchanger works as a condenser in the cooling mode of the air conditioner, so that the refrigerant compressed by the compressor 3 is condensed by emitting heat to the outdoor air through the outdoor heat exchanger. The outdoor heat exchanger works as an evaporator in the heating mode of the air conditioner, so that the refrigerant after decompression is evaporated by absorbing heat of the outdoor air through the outdoor heat exchanger.

[0044] The outdoor fan 5 is configured to suck the outdoor air into the air conditioner outdoor unit 100 through the air inlet 12 of the air conditioner outdoor unit 100, and send the outdoor air after heat exchange with the outdoor heat exchanger out of the air conditioner outdoor unit 100 through the air outlet 13 of the air conditioner outdoor unit 100. The outdoor fan 5 provides power for the flow of outdoor air.

[0045] The throttling device is connected between the outdoor heat exchanger and the indoor heat exchanger, and the refrigerant pressure flowing through the outdoor heat exchanger and the indoor heat exchanger is adjusted by the opening degree of the throttling device, so as to adjust the refrigerant flow between the outdoor heat exchanger and the indoor heat exchanger. The flow and pressure of the refrigerant flowing between the outdoor heat exchanger and the indoor heat exchanger will affect the heat exchange performance of the outdoor heat exchanger and the indoor heat exchanger. The throttling device can be an electronic valve. The opening degree of the electronic expansion valve is adjustable to control the flow and pressure of the refrigerant flowing through the electronic expansion valve.

[0046] The four-way valve is connected in the refrigerant circuit, and the four-way valve is configured to switch the flow direction of the refrigerant in the refrigerant circuit to make the air conditioner execute the cooling mode or the heating mode.

[0047] The indoor heat exchanger is configured to exchange heat between indoor air and refrigerant transferred in the indoor heat exchanger. For example, the indoor heat exchanger works as an evaporator in the cooling mode of the air conditioner, so that the refrigerant after heat dissipation through the outdoor heat exchanger is evaporated by absorbing heat of the indoor air through the indoor heat exchanger. The indoor heat exchanger works as a condenser in the heating mode of the air conditioner, so that the refrigerant after heat absorption through the outdoor heat exchanger is condensed by emitting heat to the indoor air through the indoor heat exchanger.

[0048] The air conditioner further comprises a control device. The control device is configured to control the working frequency of the compressor 3, the opening degree of the throttling device, the rotating speed of the outdoor fan 5 and the rotating speed of the indoor fan. The control device is connected with the compressor 3, the throttling device, the outdoor fan 5 and the indoor fan through data lines to transmit communication information.

[0049] The casing 1 defines an installation cavity 11 inside, and the casing 1 is formed with an air inlet 12 and an air outlet 13.

[0050] Specifically, the air flow passes through the air inlet 12 and the air outlet 13 on the casing 1, so as to realize the air circulation between the outdoor air flow and the air conditioner outdoor unit 100. The outdoor fan 5 can drive the external air flow to enter the air conditioner outdoor unit 100 from the air inlet 12. The heat exchange assembly 4 exchanges heat with the external air flow entering from the air inlet 12. The heat exchange air flow formed is blown to the outside from the air outlet 13 under the driving of the outdoor fan 5, so as to exchange the heat inside the air conditioner outdoor unit 100 with the outside, and meet the user's demand for the environmental temperature.

[0051] The partition plate 2 is arranged in the casing 1, and the partition plate 2 divides the installation cavity 11 into a compressor cavity 111 and a fan cavity 112. The compressor 3 is arranged in the compressor cavity 111, and the outdoor fan 5 is arranged in the fan cavity 112.

[0052] Specifically, the partition plate 2 can divide the installation cavity 11 inside the casing 1, so as to on the one hand effectively distinguish the installation and arrangement positions of the compressor 3 and the outdoor fan 5 in the casing 1, and improve the arrangement regularity, and on the other hand can block the water droplets on the outdoor fan 5 from being splashed to the compressor 3 and the circuit elements in the compressor cavity 111 when the outdoor fan 5 is running, so as to reduce the safety risk of the electrical appliance.

[0053] Further, the heat exchange assembly 4 is arranged in the fan cavity 112, so that after the air flow outside the casing 1 enters the fan cavity 112 under the negative pressure action of the outdoor fan 5, the air flow is directly blown out to the outside of the casing 1 after heat exchange by the heat exchange assembly 4, so as to facilitate the air conditioner outdoor unit 100 to smoothly realize the heat exchange effect of the air flow.

[0054] The outdoor fan 5 is used for introducing the air flow outside the casing 1 into the fan cavity 112 from the air inlet 12, and outputting the air flow to the outside from the air outlet 13 after heat exchange by the heat exchange assembly 4.

[0055] Specifically, the rotation of the outdoor fan 5 can generate negative pressure on the outside of the casing 1 through the air inlet 12, so that the air outside the casing 1 is driven into the fan cavity 112 under the action of air pressure, the airflow entering the fan cavity 112 exchanges heat with the heat exchange assembly 4 in the fan cavity 112, and the heat-exchanged airflow is output to the outside of the casing 1 through the air outlet 13, so that the effect of heat exchange between the refrigerant in the heat exchange assembly 4 and the outdoor air can be achieved.

[0056] The electric control box 6 is arranged in the mounting cavity 11, and the electric control box 6 includes an electric control box body 61 and a circuit board 62. The electric control box body 61 spans above the partition plate 2, and the circuit board 62 is arranged in the electric control box body 61.

[0057] Specifically, the circuit board 62 is electrically connected together by electronic components (such as resistors, capacitors, transistors, integrated circuits, etc.) according to a pre-designed circuit layout to form a complete circuit system. For example, the circuit board 62 can be electrically connected with the outdoor fan 5 and the compressor 3 respectively.

[0058] Further, the electric control box body 61 can protect the internal structure, and the circuit board 62 can send different control instructions to the outdoor fan 5 and the compressor 3 in the form of electrical signals, thereby improving the sensitivity and accuracy of the outdoor fan 5 and the compressor 3 in executing the work instructions.

[0059] The electric control box body 61 includes a main box body 611, and the main box body 611 has a first side wall 6111 located in the fan cavity 112. The first side wall 6111 is provided with a heat dissipation air outlet hole 6112.

[0060] Specifically, the main box body 611 serves as the main external profile of the electric control box 61, and the heat dissipation air outlet hole 6112 on the first side wall 6111 can facilitate the airflow to carry away the heat inside the electric control box 61 (such as the circuit board 62 and the power module inside the electric control box 61 generating a large amount of heat during operation) to the outside of the electric control box 61 through the heat dissipation air outlet hole 6112, thereby improving the heat dissipation effect.

[0061] The electric control box body 61 further includes a first baffle 612 connected to the main box body 611, and the first baffle 612 is located in the fan cavity 112. The first baffle 612 at least partially blocks the heat dissipation air outlet hole 6112 in the air outlet direction of the heat dissipation air outlet hole 6112, and the first baffle 612 is arranged in a spaced manner with the first side wall 6111 to form an air guide channel in communication with the heat dissipation air outlet hole 6112.

[0062] Specifically, the first baffle 612 is located at the side of the first side wall 6111 close to the outdoor fan 5, and since the first baffle 612 blocks the heat dissipation air outlet hole 6112 in the up-down direction of the casing 1, the risk that the water droplets (such as rain and snow) in the casing 1 are splashed into the electric control box 61 by the outdoor fan 5 through its agitation and then cause the circuit board 62 to short circuit and be damaged can be reduced, thereby improving the rainproof effect of the circuit board 62 and prolonging the service life of the circuit board 62.

[0063] Further, the first baffle 612 and the first side wall 6111 are arranged at intervals in the left-right direction of the casing 1, which is beneficial to form the air guide channel that is in communication with the heat dissipation air outlet hole 6112. For example, after the external airflow exchanges heat in the electric control box 61, the heat-exchanged airflow flows toward the heat dissipation air outlet hole 6112 under the negative pressure of the outdoor fan 5, and after the heat-exchanged airflow flows out of the heat dissipation air outlet hole 6112, the heat-exchanged airflow continues to flow toward the first baffle 612, and after being blocked by the first baffle 612, the heat-exchanged airflow flows along the opening of the first side wall 6111 and the first baffle 612 in other directions to the outside of the electric control box 61, which is beneficial to realize the continuous guiding and heat exchanging effect of the heat-exchanged airflow in the electric control box 61, thereby improving the heat dissipation efficiency of the circuit board 62 and ensuring the normal operation of the circuit board 62.

[0064] In summary, by additionally arranging the first baffle 612 at the side of the heat dissipation air outlet hole 6112 close to the outdoor fan 5, the heat dissipation effect and the rainproof effect of the circuit board 62 can be considered at the same time, thereby improving the working stability of the circuit board 62.

[0065] Therefore, by arranging the air conditioner outdoor unit 100, the heat dissipation effect and the rainproof effect of the circuit board 62 can be considered at the same time, thereby improving the working stability of the circuit board 62.

[0066] According to some optional embodiments of the present application, as shown in Figures 3-12 The distance between the first baffle 612 and the first side wall 6111 in the thickness direction of the first baffle 612 is L1, and L1 satisfies the relationship: 30mm≥L1≥5mm. For example, L1 can be 5mm, 6mm, 10mm, 15mm and 30mm, but is not limited thereto.

[0067] Understandably, along the thickness direction of the first baffle 612, when the distance between the first baffle 612 and the first side wall 6111 is less than 5mm, the distance between the first baffle 612 and the first side wall 6111 is too small. This results in the gap area between the first baffle 612 and the first side wall 6111 being too small, which prevents the heat exchanged airflow from being dissipated to the outside of the electrical control box 61 in a timely manner, thereby hindering the smoothness of the heat exchanged airflow and reducing the heat dissipation effect. On the other hand, when the distance between the first baffle 612 and the first side wall 6111 is greater than 30mm, the distance between the first baffle 612 and the first side wall 6111 is too long, which will cause the electrical control box 61 to occupy too much space, thereby reducing the space utilization rate in the mounting cavity 11.

[0068] In summary, the distance between the first baffle 612 and the first sidewall 6111 is limited to between 5mm and 30mm. This can effectively shorten the overall size of the electrical control box 61 and provide sufficient dispersion area for the heat exchanged airflow to flow out of the heat dissipation vent 6112, effectively improving the smoothness of the airflow after heat exchange and thus improving the rationality of the spatial arrangement.

[0069] In addition, the distance between the first baffle 612 and the first sidewall 6111 is relatively large, which makes it easier to manufacture using conventional processing tools, avoids processing difficulties caused by the small gap between the two, thereby simplifying the processing technology, increasing production speed, and thus improving manufacturability.

[0070] According to some optional embodiments of the present invention, combined with Figures 3-12 As shown, the first baffle 612 extends in the vertical direction, and the lower edge of the first sidewall 6111 is not lower than the lower edge of the first baffle 612. For example, the lower edge of the first sidewall 6111 may be shorter than the lower edge of the first baffle 612, or the lower edge of the first sidewall 6111 may be flush with the lower edge of the first baffle 612.

[0071] Understandably, when the lower edge of the first sidewall 6111 protrudes beyond the lower edge of the first baffle 612, the heat dissipation vent 6112 on the first sidewall 6111 is at risk of being exposed beyond the shielding effect of the first baffle 612 in the length direction. This would increase the risk of the outdoor fan 5 splashing water droplets onto the circuit board 62 through the heat dissipation vent 6112. Therefore, the lower edge of the first sidewall 6111 is designed to be no lower than the lower edge of the first baffle 612. This allows the first sidewall 6111 to provide better shielding for the heat dissipation vent 6112 on the first baffle 612 in the vertical direction, thereby effectively reducing the risk of the circuit board 62 getting wet.

[0072] Specifically, in combination Figures 3-13As shown, the upper end of the first baffle 612 is bently connected with the main box body 611, and the lower end of the first baffle 612 is provided with a flange 6121 extending towards the first side wall 6111.

[0073] It can be understood that the upper end of the first baffle 612 changes the extension direction thereof and is connected with the main box body 611, so as to facilitate the connection between the first baffle 612 and the main box body 611; the flange 6121 at the lower end of the first baffle 612 can increase the spatial mode of the first baffle 612, thereby enhancing the structural strength and bending-torsional stiffness of the first baffle 612, and the flange 6121 extends towards the first side wall 6111, so as to increase the shielding effect of the first baffle 612 on the other direction of the heat dissipation air outlet hole 6112, thereby further reducing the effect of water droplets being stirred by the outdoor fan 5 to the circuit board 62, and further ensuring the working reliability of the circuit board 62 in a rainy and snowy environment.

[0074] Further, in combination with Figures 3-12 As shown, along the thickness direction of the first baffle 612, the distance between the first baffle 612 and the first side wall 6111 is L1, and the width of the flange 6121 is L2, and L1 and L2 satisfy the relationship L1≤L2. For example, the distance between the first baffle 612 and the first side wall 6111 can be less than the width of the flange 6121, and the distance between the first baffle 612 and the first side wall 6111 can also be equal to the width of the flange 6121.

[0075] It can be understood that when the distance between the first baffle 612 and the first side wall 6111 is less than the width of the flange 6121, at this time, a gap is still formed between the first side wall 6111 and the flange 6121 in the left-right direction (that is, the thickness direction of the first baffle 612), so that there is still a risk that water droplets will splash into the heat dissipation air outlet hole 6112 from the gap between the first side wall 6111 and the flange 6121, causing the circuit board 62 to short circuit and be damaged, thereby reducing the waterproof safety of the circuit board 62.

[0076] In summary, when the distance between the first baffle 612 and the first side wall 6111 is designed to be not greater than the width of the flange 6121, the gap between the first baffle 612 and the first side wall 6111 in the left-right direction can be shielded by the flange 6121, thereby further reducing the risk of water droplets entering the electric control box 61 from the gap between the first baffle 612 and the first side wall 6111 in the up-down direction, thereby improving the working stability of the circuit board 62 in a rainy and snowy weather environment, and prolonging the service life of the circuit board 62.

[0077] According to some optional embodiments of the present application, in combination with Figures 3-5 , Figures 8-13As shown, the electric control box body 61 further comprises a second baffle 613, which is arranged in the main box body 611 and is located between the circuit board 62 and the first side wall 6111 in the left-right direction of the cabinet 1, and a ventilation gap 7 is left between the second baffle 613 and the main box body 611.

[0078] Specifically, the main box body 611 further comprises a second baffle 613, which is arranged in the main box body 611 and is located between the circuit board 62 and the first side wall 6111 in the left-right direction of the cabinet 1, and a ventilation gap 7 is left between the second baffle 613 and the main box body 611.

[0079] For example, the water droplets in the cabinet 1 are splashed to the electric control box 61 under the agitation of the outdoor fan 5, at this time the first baffle 612 shields most of the water droplets, and a small part of the water droplets has the probability of splashing into the main box body 611 through the heat dissipation air outlet hole 6112, at this time the second baffle 613 continues to shield the small part of the water droplets splashing into the main box body 611, thereby achieving a double water shielding protection effect on the circuit board 62, and further avoiding the risk of water short circuit of the circuit board 62.

[0080] Further, in combination with Figure 8 As shown, the second baffle 613 and the main box body 611 form a ventilation gap 7 allowing air flow, so that the air flow entering the main box body 611 can continue to flow to the heat dissipation air outlet hole 6112 through the ventilation gap 7 after heat exchange with the heating components on the circuit board 62, and the heat exchanged air flow can flow out of the main box body 611 through the heat dissipation air outlet hole 6112, thereby smoothly realizing the continuous circulation and heat exchange work of the air flow in the outside and the inside of the electric control box 6, and further ensuring the heat dissipation effect of the circuit board 62.

[0081] Specifically, in combination with Figure 4 , Figure 5 , Figure 8 and Figure 10 As shown, the second baffle 613 extends in the up-down direction, the upper end of the second baffle 613 is connected with the top wall of the main box body 611, and the lower end of the second baffle 613 is arranged in the main box body 611 and is located between the circuit board 62 and the first side wall 6111 in the left-right direction of the cabinet 1, and a ventilation gap 7 is left between the second baffle 613 and the main box body 611.

[0082] It can be understood that the second baffle 613 extends in the vertical direction (that is, the up-down direction), so that the water droplets can be effectively shielded in the left-right direction, thereby improving the rationality of the arrangement of the second baffle 613; the upper end of the second baffle 613 is connected with the top wall of the main box body 611 as a whole, and the lower end of the second baffle 613 is spaced apart from the bottom of the main box body 611, and the lower end of the second baffle 613 and the bottom of the main box body 611 can form a ventilation gap 7 allowing airflow to pass through, thereby facilitating the formation of a smooth airflow channel inside and outside the main box body 611, and thereby improving the heat dissipation effect of the circuit board 62.

[0083] In addition, the circuit board 62 is usually arranged at the upper end inside the main box body 611, at this time the upper end of the second baffle 613 is connected with the top wall of the main box body 611, and the lower end of the second baffle 613 is spaced apart from the bottom of the main box body 611, so that the arrangement can facilitate the second baffle 613 to form a corresponding relationship with the circuit board 62 and the components (such as electrolytic capacitors) on the circuit board 62 in the left-right direction, prevent the water droplets from being directly splashed to the circuit board 62 without the shielding of the second baffle 613, thereby ensuring the rationality and practicability of the arrangement of the second baffle 613; and the second baffle 613 will not interfere with the normal flow of the heat-exchanged airflow, thereby ensuring good heat dissipation effect in the electric control box body 61.

[0084] According to some optional embodiments of the present application, as shown in Figure 11 and Figure 12 , the plurality of heat dissipation air outlets 6112 are spaced apart along the length direction of the first side wall 6111, the heat dissipation air outlet 6112 is configured as a long strip, and the width of the heat dissipation air outlet 6112 is W, which satisfies the relationship W≤5mm. For example, the width of the heat dissipation air outlet 6112 can be 2mm, 3mm, 4mm and 5mm, but is not limited thereto.

[0085] The plurality of heat dissipation air outlets 6112 are spaced apart along the length direction of the first side wall 6111 (that is, the front-rear direction), so that the arrangement of the heat dissipation air outlets 6112 is more regular and orderly, thereby simplifying the production process and improving the production speed; the heat dissipation air outlet 6112 is configured as a long strip, so that a larger air outlet cross-sectional area can be formed, thereby improving the ventilation flow of the heat-exchanged airflow at the heat dissipation air outlet 6112, and thereby effectively improving the heat dissipation efficiency.

[0086] In addition, the width of the heat dissipation air outlet hole 6112 is not greater than 5mm, and the width of the heat dissipation air outlet hole 6112 is small, so that the dust, debris or other larger foreign matters can be effectively blocked from entering the inside of the equipment, preventing the sensitive components (such as the circuit board 62, electronic components, etc.) from being damaged, and the heat dissipation effect can be improved by increasing the air flow speed through itself, ensuring that the heat can be quickly discharged to the outside of the main box body 611, and the smaller width of the heat dissipation air outlet hole 6112 has little effect on the overall structural strength of the main box body 611, avoiding the problem of stress concentration caused by the large opening, thereby ensuring the structural reliability of the main box body 611.

[0087] According to some optional embodiments of the present application, as shown in Figure 4 The side of the main box body 611 located in the press cavity 111 is open to form a heat dissipation air inlet hole 6113.

[0088] Specifically, along the left-right direction, the side of the main box body 611 located in the press cavity 111 is open, which can widely increase the communication area of the main box body 611 with the outside, which is beneficial to the smooth and comprehensive flow of external air flow into the main box body 611, thereby increasing the air inlet amount and improving the heat dissipation efficiency of the circuit board 62, thereby improving the heat dissipation effect and ensuring the working stability of the circuit board 62.

[0089] Optionally, as shown in Figure 11 and Figure 13 The bottom wall of the main box body 611 is provided with a first ventilation hole 6114, and the first ventilation hole 6114 is located below the circuit board 62.

[0090] For example, since the electronic components (such as electrolytic capacitors) on the circuit board 62 extend towards the bottom wall, the first ventilation hole 6114 is arranged at the bottom wall near the lower end of the electronic components, so that the external air flow enters the rear focus through the first ventilation hole 6114 to preheat and cool the electronic components with large heat dissipation, thereby effectively improving the heat dissipation efficiency of the electronic components (such as electrolytic capacitors) with large heat dissipation.

[0091] Optionally, as shown in Figure 11 and Figure 13As shown, the bottom wall of the main box body 611 is downwardly protruding to form a protruding portion 6115, the protruding portion 6115 is provided with a second ventilation hole 6116, the second ventilation hole 6116 is located below the circuit board 62, in this way, the protruding portion 6115 can increase the spatial modal of the bottom wall of the main box body 611, thereby emphatically strengthening the structural strength of the position where the second ventilation hole 6116 is arranged on the bottom wall, avoiding the risk of fatigue fracture caused by the too low structural strength of the position where the second ventilation hole 6116 is arranged on the bottom wall; and in this way, the air inlet amount on the main box body 611 can be further increased under the premise of meeting the structural strength of the second ventilation hole 6116, and the heat dissipation effect can be effectively improved.

[0092] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0093] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", 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 application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.

[0095] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0096] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

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

Claims

1. An outdoor unit of an air conditioner, comprising: a casing, an installation cavity being defined inside the casing, an air inlet and an air outlet being formed on the casing; a partition plate, the partition plate being arranged in the casing and separating the installation cavity into a compressor cavity and a fan cavity; a compressor, the compressor being arranged in the compressor cavity; a heat exchange assembly, the heat exchange assembly being arranged in the fan cavity; an outdoor fan, the outdoor fan being arranged in the fan cavity, the outdoor fan being configured to introduce an airflow outside the casing into the fan cavity through the air inlet, and output the airflow outside through the air outlet after heat exchange by the heat exchange assembly; an electric control box, the electric control box being arranged in the installation cavity; characterized in that the electric control box comprises: an electric control box body, the electric control box body being arranged above the partition plate; a circuit board, the circuit board being arranged in the electric control box body; wherein: the electric control box body comprises: a main box body, the main box body having a first side wall located in the fan cavity, the first side wall being provided with a heat dissipation air outlet hole; a first baffle, the first baffle being connected to the main box body and located in the fan cavity, the first baffle at least partially shielding the heat dissipation air outlet hole in the up-down direction of the casing, the first baffle and the first side wall being spaced apart in the left-right direction of the casing to form an air guide channel in communication with the heat dissipation air outlet hole.

2. The outdoor unit of claim 1, wherein In the thickness direction of the first baffle, the distance between the first baffle and the first side wall is L1, L1 satisfies the relationship: 30mm≥L1≥5mm.

3. The outdoor unit of claim 1, wherein The first baffle extends in the up-down direction, the lower edge of the first side wall is not lower than the lower edge of the first baffle.

4. The outdoor unit of claim 3, wherein The upper end of the first baffle is bently connected to the main box body, the lower end of the first baffle is provided with a flange, the flange extends towards the first side wall.

5. The outdoor unit of claim 4, wherein In the thickness direction of the first baffle, the distance between the first baffle and the first side wall is L1, the width of the flange is L2, L1 and L2 satisfy the relationship: L1≤L2.

6. The air conditioner outdoor unit as claimed in claim 1, wherein The electric control box body further comprises: a second baffle, the second baffle being arranged in the main box body, in the left-right direction of the casing, the second baffle being located between the circuit board and the first side wall, a ventilation gap being left between the second baffle and the main box body.

7. The air conditioner outdoor unit according to claim 6, wherein The second baffle extends in the up-down direction, the upper end of the second baffle is connected to the top wall of the main box body, the lower end of the second baffle is spaced apart from the bottom of the main box body to form the ventilation gap.

8. The air conditioner outdoor unit as claimed in claim 1, wherein The heat dissipation air outlet hole is a plurality of heat dissipation air outlet holes, the plurality of heat dissipation air outlet holes are spaced apart in the length direction of the first side wall, the heat dissipation air outlet hole is configured as a strip, the width of the heat dissipation air outlet hole is W, W satisfies the relationship: W≤4mm.

9. The air conditioner outdoor unit as claimed in claim 1, wherein One side of the main box body located in the compressor cavity is open to form a heat dissipation air inlet hole.

10. The air conditioner outdoor unit as set forth in claim 1, characterized by The bottom wall of the main box body is provided with a first ventilation hole, the first ventilation hole is located below the circuit board; and / or The bottom wall of the main box body is protruded downward to form a protruding portion, the protruding portion is provided with a second ventilation hole, the second ventilation hole is located below the circuit board.

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