Air conditioner outdoor unit and air conditioner

Abstract

The invention provides an air conditioner outdoor unit and an air conditioner, and the air conditioner outdoor unit comprises a machine box provided with an air outlet; at least part of the electric control box is arranged in the case; the wind wheel is arranged in the case and is positioned at the air outlet; the heat dissipation device is arranged in the case and used for dissipating heat of the electric control box, the heat dissipation device is located on one side of the wind wheel in the axis direction of the wind wheel, and at least part of the projection of the heat dissipation device towards the wind wheel is located in the circumferential edge of the wind wheel in the axis direction of the wind wheel. According to the air conditioner outdoor unit provided by the invention, when the air flow generated during rotation of the wind wheel at least passes through partial area of the heat dissipation device, the heat dissipation device is at least partially located on the flowing path of the air flow generated by the wind wheel, and therefore, under the action of the air flow generated during rotation of the wind wheel, the heat dissipation device can achieve a good heat dissipation effect on the electric control box; and the working temperature of the electric control box is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning outdoor unit and an air conditioner. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] In the air-conditioning outdoor unit, the electric control box is usually set in the chassis of the air-conditioning outdoor unit. After the air-conditioning outdoor unit has been running for a long time, a large amount of heat will accumulate on the electric control box. Therefore, it is necessary to dissipate the heat accumulated on the electric control box. Especially when the air-conditioning outdoor unit is running, if the electric control box is in a high temperature state for a long time, it will affect the operation of the power components on the electric control box. Summary of the invention

[0004] The purpose of the present invention is to at least solve the technical problem of how to dissipate heat from the electric control box of the air conditioner outdoor unit. This purpose is achieved through the following technical solutions:

[0005] The present invention provides an air conditioner outdoor unit, characterized in that the air conditioner outdoor unit comprises:

[0006] A chassis, wherein the chassis is provided with an air outlet;

[0007] An electric control box, at least part of which is disposed in the chassis;

[0008] A wind wheel, the wind wheel is arranged in the chassis and located at the air outlet;

[0009] A heat dissipation device is arranged in the chassis and is used to dissipate heat from the electric control box. Along the axial direction of the wind wheel, the heat dissipation device is located on one side of the wind wheel, and along the axial direction of the wind wheel, a projection of the heat dissipation device onto the wind wheel is at least partially located within the circumferential edge of the wind wheel.

[0010] The air conditioner outdoor unit provided by the present invention is provided with a wind wheel and a heat sink in a case. The heat sink is used to dissipate heat for an electric control box. The airflow generated when the wind wheel rotates passes through at least a partial area of ​​the heat sink. The heat sink is arranged on the flow path of the airflow to take away the heat on the heat sink. Specifically, the projection of the heat sink onto the wind wheel is at least partially located within the circumferential edge of the wind wheel, so that the heat sink is at least partially located on the flow path of the airflow generated by the wind wheel. Therefore, under the action of the airflow generated by the rotation of the wind wheel, the heat sink can achieve good heat dissipation effect on the electric control box, thereby reducing the operating temperature of the electric control box.

[0011] In addition, the air conditioner outdoor unit according to the present invention may also have the following additional technical features:

[0012] In some embodiments of the present invention, on a projection plane perpendicular to the axial direction, the heat dissipation device has a first projection on the projection plane, the rotating plane of the impeller has a second projection on the projection plane, the first projection and the second projection are arranged to intersect, and along the radial direction of the impeller, the longest distance of the first projection within the circumferential edge of the second projection is L, the diameter of the wind wheel is D, and L is 5% to 40% of D.

[0013] In some embodiments of the present invention, on a plane perpendicular to the axial direction, the shortest distance between the first projection and the axis of the wind wheel is L1, the longest distance between the first projection and the axis of the wind wheel is L2, a first circular area is formed with a point on the axis of the wind wheel as the center and L1 as the radius, and a second circular area is formed with L2 as the radius, the area difference between the first circular area and the second circular area is S2, and the wind wheel rotates around its axis to form a third circular area S1, wherein 0.005<S2 / S1<0.5.

[0014] In some embodiments of the present invention, along the axis direction of the wind wheel, the shortest distance between the top of the heat dissipation device and the wind wheel is L3, and L3>D*5%.

[0015] In some embodiments of the present invention, the wind wheel comprises an axial flow wind wheel, the air outlet side of the axial flow wind wheel faces the air outlet, and the air inlet side of the axial flow wind wheel faces the heat dissipation device.

[0016] In some embodiments of the present invention, the air conditioner outdoor unit further includes a heat exchanger, which is disposed in the chassis and located on a side of the wind wheel away from the air outlet.

[0017] In some embodiments of the present invention, the heat exchanger extends along the circumference of the side wall of the chassis and encloses to form a heat exchange channel, and the heat exchange channel is connected to the air outlet.

[0018] In some embodiments of the present invention, the air outlet is arranged at the top of the chassis, and the air conditioner outdoor unit also has an air inlet, which is arranged on the side wall of the chassis. An air flow channel is formed between the air outlet and the air inlet, and the air flow channel is connected to the heat exchange channel.

[0019] In some embodiments of the present invention, the heat dissipation device is located on a side of the wind wheel away from the air outlet and close to a portion of the electric control box located in the chassis.

[0020] In some embodiments of the present invention, the electric control box is connected to the heat dissipation device.

[0021] In some embodiments of the present invention, the air-conditioning outdoor unit further includes a compressor assembly, the compressor assembly is connected to the heat exchanger, and the compressor assembly is disposed in the heat exchange channel.

[0022] A second aspect of the present invention provides an air conditioner, comprising an air conditioner outdoor unit as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0024] Figure 1 A schematic structural diagram of an air-conditioning outdoor unit according to an embodiment of the present invention;

[0025] Figure 2 A top view of an air conditioner outdoor unit on the air outlet side of an embodiment of the present invention, wherein the projection of the heat dissipation device on the wind wheel is shown;

[0026] Figure 3 A schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present invention, wherein the height relationship between the heat dissipation device and the wind wheel is shown;

[0027] Figure 4 A schematic structural diagram of an air-conditioning outdoor unit according to an embodiment of the present invention, wherein a heat exchanger and a heat exchange air duct are shown;

[0028] Figure 5 A schematic diagram of the structure of an air-conditioning outdoor unit according to an embodiment of the present invention, wherein an electric control box connected to an electric control distribution device is shown;

[0029] Figure 6 The figure is a schematic structural diagram of an air-conditioning outdoor unit according to an embodiment of the present invention.

[0030] The reference numerals are as follows:

[0031] 100. Air conditioner outdoor unit;

[0032] 110, chassis; 111, air outlet; 112, air inlet; 113, air flow channel;

[0033] 120, axial flow wind wheel; 121, axis line;

[0034] 130. heat dissipation device; 131. projection;

[0035] 140. heat exchanger; 141. heat exchange channel;

[0036] 150. Electric control box;

[0037] 160. Compressor assembly;

[0038] C1, first circular area; C2, second circular area. DETAILED DESCRIPTION

[0039] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0040] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0041] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0042] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0043] Combination Figures 1 to 6 The air conditioner outdoor unit 100 of this embodiment includes a chassis 110, and the chassis 110 has an air outlet 111 and an air inlet 112. A wind wheel is arranged in the chassis 110, and the wind wheel is arranged at the air outlet 111. Under the action of the wind wheel, an air flow channel is formed between the air inlet 112 and the air outlet 111 of the chassis 110. The formed air flow can take away the air in the chassis 110, and at the same time, the air outside the chassis 110 is sucked into the chassis 110, so that the air inside and outside the chassis 110 can circulate.

[0044] The air-conditioning outdoor unit 100 of the present embodiment also includes a heat dissipation device 130, which is arranged in the chassis 110. The heat dissipation device 130 is used to dissipate heat from the electric control box 150. The heat dissipation device 130 is connected to the electric control box 150. The electric control components for controlling the operation of the air-conditioning outdoor unit 100 are arranged in the electric control box 150. The heat generated during the operation of the electric control components is conducted to the electric control box 150 and the heat dissipation device 130. When the airflow in the chassis 110 passes through the heat dissipation device, the heat conducted to the heat dissipation device by the electric control components is carried to the outside of the chassis 110 through the airflow formed in the chassis 110, so that the heat conducted to the heat dissipation device by the electric control components in the electric control box will not accumulate in the chassis. Therefore, the air-conditioning outdoor unit of the present embodiment can promptly take away the heat conducted to the heat dissipation device, so that the electric control box and the electric control components in the electric control box are maintained within a normal operating temperature range, and the heat on the heat dissipation device can be promptly discharged to the outside of the chassis, thereby avoiding heat accumulation in the chassis.

[0045] In the air conditioner outdoor unit of this embodiment, the heat dissipation device is connected to the electric control box, so that the heat generated by the electric control components in the electric control box can be conducted to the heat dissipation device, and the heat on the heat dissipation device can be taken away by the airflow generated by the rotation of the wind wheel, wherein the heat dissipation device can be configured as a device having multiple heat dissipation fins.

[0046] The heat dissipation device can also be set as an air guide plate structure. The heat dissipation device is located on one side of the wind wheel along the axial direction of the wind wheel, and the projection of the heat dissipation device onto the wind wheel is at least partially located within the circumferential edge of the wind wheel. That is, the airflow generated by the rotation of the wind wheel passes through a partial area of ​​the heat dissipation device, so that the air guide plate structure can guide part of the airflow generated by the wind wheel to the electric control box, and the heat conducted to the electric control box by the electric control components is taken away by the airflow blowing on the electric control box.

[0047] The heat dissipation device can also be set as a rotatable fan structure, and the airflow generated by the rotation of the wind wheel drives the fan in the heat dissipation device to rotate, so that the airflow generated by the rotation of the fan can be blown toward the electronic control box to dissipate the heat of the electronic control box and the electronic control components in the electronic control box, wherein the projection of the rotatable fan structure onto the wind wheel is at least partially located within the circumferential edge of the wind wheel, so as to facilitate the airflow to pass through the rotatable fan structure to drive the fan in the heat dissipation device to rotate.

[0048] Therefore, the heat dissipation device provided by the present invention dissipates heat for the electric control box, can be mechanically connected to the electric control box, conduct the heat of the electric control box and the electric control components in the electric control box to the heat dissipation device, and can also form an airflow between the heat dissipation device and the electric control box, and dissipate heat by blowing air to the electric control box. The heat dissipation device of the air conditioner outdoor unit of the present invention is located on one side of the wind wheel along the axial direction of the wind wheel, so that the airflow generated by the rotation of the wind wheel can act on the heat dissipation device. When the projection of the heat dissipation device to the wind wheel along the axial direction of the wind wheel is at least partially located within the circumferential edge of the wind wheel, a partial area of ​​the heat dissipation device is located on the flow path of the airflow generated by the rotation of the wind wheel, and the airflow can directly act on the heat dissipation device. Therefore, the heat dissipation device in the air conditioner outdoor unit of the present invention can dissipate heat for the electric control box well, ensuring that the electric control components in the electric control box are always within the normal working temperature range.

[0049] In the air conditioner outdoor unit of the present invention, in order to make the airflow in the chassis 110 dissipate heat for the electronic control components more efficiently, the positions of the wind wheel and the heat dissipation device 130 are limited in the air conditioner outdoor unit 100 of the present invention.

[0050] In one embodiment of the present invention, the heat dissipation device 130 is arranged on the side of the wind wheel away from the air outlet 111 of the chassis 110. The heat dissipation device 130 has a projection 131 on the wind wheel along the direction of the axis 121 of the wind wheel. The electric control box and the heat dissipation device can also be arranged on the same side of the wind wheel. The heat dissipation device can dissipate heat to a partial area of ​​the electric control box arranged in the chassis. In the air-conditioning outdoor unit 100 of this embodiment, along the direction of the axis 121 of the wind wheel, a partial area of ​​the heat dissipation device 130 that generates the projection 131 is located in the air flow channel. The airflow formed in the chassis can directly dissipate the heat dissipation device 130, and can take away most of the heat of the heat dissipation device 130, and promptly take away the heat accumulated in the electric control components in the electric control box 150 connected to the heat dissipation device 130, so as to prevent the electric control components from being in a high temperature environment for a long time and affecting the normal operation of the air-conditioning outdoor unit 100.

[0051] In the air-conditioning outdoor unit 100 provided by the present invention, after the wind wheel is started, during the operation of the air-conditioning outdoor unit 100, the wind wheel can always dissipate heat for the heat dissipation device 130 connected to the electric control box 150, thereby improving the heat dissipation efficiency of the electric control components in the electric control box 150 of the air-conditioning outdoor unit 100. In the air-conditioning outdoor unit 100 of this embodiment, at least a part of the heat dissipation device 130 is located in the air flow path generated by the rotation of the wind wheel, so that the heat conducted to the heat dissipation device 130 can be taken away in time.

[0052] The air-conditioning outdoor unit 100 of the present invention can be provided with an air inlet 112 on the side wall of the chassis 110, and an air outlet 111 on the top of the chassis 110. In particular, when the air inlets 112 are provided on multiple side walls of the chassis 110, air can be introduced into the chassis 110 from multiple areas of the circumferential side wall of the chassis 110. The air flow channel in the chassis 110 has a large ventilation area. A partial area of ​​the heat dissipation device 130 connected to the electric control box 150 is provided in the air flow channel, which can efficiently dissipate the heat of the electric control components in the electric control box 150. The air-conditioning outdoor unit of this embodiment adopts a top-outlet structure. When the wind wheel is provided at the air outlet position, it is conducive to forming a larger airflow in the chassis.

[0053] Among them, the heat dissipation efficiency of the heat dissipation device for the electric control box can be adjusted by adjusting the relative position of the heat dissipation device 130 connected to the electric control box 150 and the wind wheel. For example, the heat dissipation device can be set at positions with different distances from the axis of the wind wheel, that is, the heat dissipation device is arranged along the radial direction of the wind wheel, and the projection of the heat dissipation device along the axial direction of the wind wheel to the wind wheel is at least partially located within the circumferential edge of the wind wheel. The heat dissipation efficiency for the electric control box is determined according to the flow velocity of the airflow around the heat dissipation device. In this embodiment, after the wind wheel rotates, the flow velocity of the airflow in the radial direction of the wind wheel is different.

[0054] Among them, by setting the size of the radial diameter of the wind wheel, or the external structure of the heat dissipation device, in the axial direction of rotation of the wind wheel, the projection of the heat dissipation device 130 onto the wind wheel has different projection areas, so that the heat dissipation efficiency of the heat dissipation device for the electric control box can be adjusted according to the different projection areas. The projection area can extend along the radial direction of the wind wheel and can also extend along the circumferential direction of the wind wheel. The size of the projection area directly affects the heat dissipation efficiency of the heat dissipation device, and also affects the heat dissipation effect of the electric control box 150 and the electric control components in the electric control box.

[0055] During the specific arrangement of the outdoor unit, technicians can adjust the positional relationship between the heat dissipation device 130 and the wind wheel according to the power of the air-conditioning outdoor unit 100 and the volume of the chassis 110, thereby forming an air-conditioning outdoor unit with different heat dissipation efficiencies for the electrical control box and the electrical control components in the electrical control box.

[0056] In one embodiment of the present invention, Figure 2 As shown, on a projection plane perpendicular to the axis 121 of the wind wheel, the heat dissipation device has a first projection on the above projection plane, and the rotating plane of the wind wheel has a second projection on the above projection plane, and the first projection and the second projection overlap at least partially, and in the radial direction of the wind wheel, the longest distance of the first projection within the circumferential edge of the second projection is L, and the radial diameter of the wind wheel is D, wherein the longest distance L can be set to any value between 5% and 40% of the radial diameter D of the wind wheel. In this embodiment, the overlapping area of ​​the first projection and the second projection is located near the circumferential edge of the second projection, and the effective heat dissipation area of ​​the heat dissipation device caused by the airflow formed by the rotation of the wind wheel is determined by setting the projection relationship between the heat dissipation device and the wind wheel. The above-mentioned proportional range given in this embodiment is determined in combination with the heat exchanger assembly and the compressor assembly in the chassis of the air conditioner outdoor unit and the limited volume of the chassis. Within the above-mentioned proportional range, while ensuring effective heat dissipation of the electric control box, the heat exchange efficiency of the air conditioner outdoor unit is greatly improved.

[0057] like Figure 1 As shown, the heat sink 130 can be arranged in the chassis 110 along the height direction. In the chassis, the height direction of the heat sink is roughly the same as the flow direction of the airflow, so that the heat sink occupies a longer heat dissipation path on the airflow flow path formed between the air inlet and the air outlet of the chassis 110, effectively improving the heat dissipation efficiency.

[0058] It should be noted that, in the air-conditioning outdoor unit 100 of the present invention, when the heat dissipation device is connected to the electric control box, the heat dissipation device 130 and the electric control box 150 can be set as an integrated structure, the heat dissipation device 130 is set in the chassis 110, and a partial area of ​​the electric control box 150 is set outside the chassis 110 for connecting the power cord or setting the control elements, and a partial area of ​​the electric control box 150 is set in the chassis 110 for heat dissipation in the air flow channel.

[0059] Among them, the heat dissipation device 130 connected to the electrical control box 150 can also be completely located on the air flow path or in the air flow channel within the chassis 110. This arrangement can be arranged according to the structural characteristics of the heat dissipation device 130, such as the structure of the heat dissipation channel of the heat dissipation device 130, or the effective heat dissipation area of ​​the heat dissipation device for conducting heat. The heat dissipation effect can also be improved by increasing the length occupied by the heat dissipation device on the air flow path within the chassis 110.

[0060] In the above-mentioned embodiments of the present invention, the heat dissipation efficiency of the air-conditioning outdoor unit 100 to the electric control box 150 is arranged according to the projection area of ​​the heat dissipation device 130 on the wind wheel. In particular, when the heat dissipation device 130 is arranged along the side wall of the chassis 110 in the height direction, the accommodating space in the chassis 110 can be increased, so that the air-conditioning outdoor unit 100 can arrange more components in the chassis 110, such as the heat exchanger 140 assembly or the compressor, the liquid storage tank, and the electronic expansion valve, pipelines, fixing devices, etc.

[0061] In one embodiment of the present invention, on a projection plane perpendicular to the axis direction of the wind wheel, the heat sink has a first projection on the projection plane, the shortest distance between the first projection and the axis of the wind wheel is L1, the longest distance between the first projection and the axis of the wind wheel is L2, a point on the axis of the wind wheel is taken as the center, L1 is taken as the radius to form a first circular area, L2 is taken as the radius to form a second circular area, the area difference between the first circular area and the second circular area is S2, the wind wheel rotates around its axis to form a third circular area S1, wherein 0.005<S2 / S1<0.5, in this embodiment, according to the area formed by the rotation of the wind wheel around the axis 121, and the area ratio of the projection 131 of the heat sink 130 on the area, the heat sink area of ​​the airflow formed by the rotation of the wind wheel to the heat sink 130 is set, such as Figure 2 As shown, the area formed by the wind wheel around its axis 121 is S1, that is, the third circular area S1, and the area formed by the projection 131 of the heat sink 130 on the wind wheel rotating around the axis 121 of the wind wheel is S2. The area S2 is explained as follows: in a plane perpendicular to the axis 121 of the wind wheel, the shortest distance between the projection 131 of the heat sink 130 on the wind wheel along the axis 121 and the axis 121 is L1, and the longest distance between the projection 131 and the axis 121 of the wind wheel is L2. With a point on the axis 121 as the center and L1 as the radius, a first circular area C1 is formed, and with L2 as the radius, a second circular area C2 is formed, and the area difference between the first circular area C1 and the second circular area C2 is S2.

[0062] In the present embodiment, considering that the airflow acting on the heat dissipation device is formed by the circumferential rotation of the wind wheel, the airflow generated by the circumferential annular area is an important indicator that affects the heat dissipation of the electric control box by the heat dissipation device. Therefore, the projection of the heat dissipation device onto the wind wheel along the axial direction of the wind wheel, the annular area formed by the rotation of the projection along the axis of the wind wheel, and the airflow formed by the wind wheel in the above annular area directly act on the heat dissipation device. Therefore, the above-mentioned proportional area given in the present embodiment can also form a good heat dissipation environment for the electric control box under the condition that the air-conditioning outdoor unit has a high heat exchange efficiency.

[0063] In order to improve the heat dissipation efficiency of the electrical control box 150, part of the heat sink 130 can be extended along the rotation direction of the wind wheel, so as to appropriately increase the heat dissipation area and increase the projection 131 area of ​​the heat sink 130 on the wind wheel. The advantage of this arrangement is that the heat sink 130 can be arranged along the side wall of the chassis 110 without occupying the effective accommodation space in the chassis 110, that is, the heat dissipation area of ​​the heat sink 130 is not increased in the direction perpendicular to the axis 121 of the wind wheel, and the heat dissipation area of ​​the heat sink 130 is appropriately increased along the rotation direction of the wind wheel.

[0064] In one embodiment of the present invention, Figure 3 As shown, the heat sink 130 is arranged in the chassis 110, and the shortest distance between the top of the heat sink 130 and the wind wheel is L3. By appropriately increasing the shortest distance L3, the airflow formed by the rotation of the wind wheel around the axis 121 can take away the heat conducted to the heat sink 130, thereby preventing the heat sink 130 from being too close to the wind wheel, so that the airflow between the wind wheel and the heat sink 130 cannot circulate. Specifically, the shortest distance L3 is greater than 5% of the radial diameter D of the wind wheel.

[0065] In the air-conditioning outdoor unit 100 of this embodiment, the heat dissipation device 130 can be arranged opposite to a part of the air inlet 112 of the chassis 110. When the external air enters the chassis 110 through the air inlet 112, it is first blown toward the heat dissipation device 130, and then under the action of the wind wheel, the airflow flows toward the air outlet 111 of the chassis 110.

[0066] In the air-conditioning outdoor unit 100 of the present invention, the wind wheel in the chassis 110 can be set to an axial flow wind wheel 120, the air outlet side of the axial flow wind wheel 120 faces the air outlet 111 of the chassis 110, and the air inlet side of the axial flow wind wheel 120 is spaced apart from the heat sink 130, wherein the axial flow wind wheel 120 is provided with at least one fan blade, and the fan blade rotates around the axis 121 of the axial flow wind wheel 120, so that the air at the air inlet 112 of the chassis 110 flows to the air outlet 111 of the chassis 110, and the size and rotation speed of the axial flow wind wheel 120 can be set according to the ventilation requirements of the chassis 110. In the air-conditioning outdoor unit 100 of the present invention, the projection 131 of the axial flow wind wheel 120 and the heat sink 130 in the direction of the axis 121 of the wind wheel is set to interfere with each other, so that the airflow generated by the rotation of the wind wheel passes through a partial area of ​​the heat sink 130, and the electric control components in the electric control box 150 connected to the heat sink 130 are cooled.

[0067] In the air conditioning outdoor unit 100 of the present invention, the heat dissipation device 130 and the axial flow fan wheel 120 are sequentially arranged between the air inlet 112 and the air outlet 111 of the chassis 110. Under the action of the axial flow fan wheel 120, the airflow formed between the air inlet 112 and the air outlet 111 of the chassis 110 can pass through a partial area of ​​the heat dissipation device 130.

[0068] In one embodiment of the present invention, the air-conditioning outdoor unit 100 also includes a heat exchanger 140, which is disposed in the chassis 110. The heat exchanger 140 is located near the air inlet 112 of the chassis 110 and is arranged on the side of the wind wheel away from the air outlet 111 of the chassis 110, so that the air outside the chassis 110 can pass through the air inlet 112 and then exchange heat with the heat exchanger 140. The refrigerant medium in the heat exchanger 140 exchanges heat with the airflow, and under the action of the wind wheel, the air after heat exchange with the heat exchanger 140 flows to the air outlet 111 of the chassis 110.

[0069] The heat exchanger 140 includes a plurality of refrigerant pipes for circulating the refrigerant medium. The wall surface of the heat exchanger 140 formed by the plurality of refrigerant pipes can be arranged along the side wall of the chassis 110 , and can also be arranged opposite to the air inlet 112 of the side wall of the chassis 110 .

[0070] At least a compressor assembly 160 and an expansion valve are arranged in the chassis 110 of the air-conditioning outdoor unit 100. A circulation circuit of a refrigerant medium is formed between the heat exchanger 140, the heat exchanger 140 and the expansion valve. The airflow formed between the air inlet 112 and the air outlet 111 of the chassis 110 exchanges heat with the heat exchanger 140, so that the air-conditioning outdoor unit 100 achieves the purpose of cooling or heating.

[0071] It should be noted that when the air-conditioning outdoor unit 100 of the present invention is applied to an air conditioner or an air-conditioning system, it is connected to the indoor unit of the air conditioner or the air-conditioning system, and the refrigerant forms a loop in the heat exchanger 140 in the air-conditioning outdoor unit 100 and the indoor unit. Specifically, a condenser can be provided in the air-conditioning outdoor unit 100, and an evaporator can be provided in the air-conditioning indoor unit. The refrigerant forms a circulation loop in the condenser and the evaporator. An expansion valve, a switching valve, and a gas-liquid separator can also be provided in the circulation loop. In the air-conditioning outdoor unit 100, the refrigerant in the heat exchanger 140 completes heat exchange in the air flow path between the air inlet 112 and the air outlet 111 of the chassis 110.

[0072] Combination Figure 4 and Figure 5 In order to increase the heat exchange area, heat exchangers 140 may be arranged on multiple side walls of the chassis 110, multiple heat exchangers 140 are interconnected, and air inlets 112 are arranged on multiple side walls of the chassis 110 where the heat exchangers 140 are arranged, thereby increasing the contact area between the heat exchanger 140 and the airflow. A heat exchanger 140 may also be set as a G-type and set along the side wall inside the chassis 110.

[0073] In one embodiment of the present invention, the heat exchanger 140 of the air-conditioning outdoor unit 100 is circumferentially extended along the side wall of the chassis 110, and encloses a heat exchange channel 141, which is connected to the air inlet 112 arranged on the side wall of the chassis 110. The heat exchange channel 141 formed by the heat exchanger 140 is arranged with components such as a compressor and a liquid storage tank, wherein the electric control box 150 and the heat dissipation device 130 connected to the electric control box 150 can be arranged in the heat exchange channel 141, or the heat dissipation device 130 can be arranged in the heat exchange channel 141, and a partial area of ​​the electric control box 150 is arranged outside the heat exchange channel 141, which is used to provide a panel for setting electric control operating elements, wherein the heat exchange channel 141 is connected to the air flow channel 113 formed between the air inlet 112 and the air outlet 111 of the chassis 110.

[0074] In one embodiment of the present invention, the heat exchanger 140 of the air-conditioning outdoor unit 100 is circumferentially extended along the side wall of the chassis 110, and together with the electrical control box 150, a heat exchange channel 141 is formed, and a compressor assembly 160, an expansion valve, a control valve and other components are arranged in the heat exchange channel 141, wherein the heat exchange channel 141 is connected to the air flow channel 113 formed between the air inlet 112 and the air outlet 111 of the chassis 110.

[0075] In one embodiment of the present invention, the air-conditioning outdoor unit also includes an electronic control box, at least part of which is arranged in the chassis and connected to the heat dissipation device; the air-conditioning outdoor unit is also provided with a compressor assembly, which is connected to the heat exchanger to form a refrigerant circulation channel, and the compressor assembly is arranged in the heat exchange channel.

[0076] The present invention also provides an air conditioner, Figure 6 The air conditioner includes the air conditioning outdoor unit 100 of any of the above embodiments, and the air conditioner also includes a compressor and a liquid storage tank connected to the compressor. The compressor and the liquid storage tank can be arranged in the chassis 110 of the air conditioning outdoor unit 100. The compressor is used to compress the refrigerant medium. The compressed refrigerant medium flows in the heat exchanger 140. Under the action of the wind wheel in the air conditioning outdoor unit 100, the heat generated in the heat exchanger 140 is cooled by the airflow in the airflow channel 113, and the heat is carried to the outside of the air conditioning outdoor unit 100 by the airflow.

[0077] The air conditioner of the present invention further includes an air conditioner indoor unit, in which a heat exchanger 140 or an evaporator is arranged, and is connected to the heat exchanger 140 in the air conditioner outdoor unit 100, so that the refrigerant in the heat exchanger 140 of the air conditioner outdoor unit 100 can flow to the heat exchanger 140 or the evaporator of the air conditioner indoor unit, and perform heat exchange with the indoor air, so as to keep the indoor temperature within a reasonable range. In the cooling mode, the heat exchanger 140 in the air conditioner outdoor unit 100 is a heat exchanger for discharging heat, and the heat exchanger in the air conditioner indoor unit is a heat exchanger for absorbing heat; in the heating mode, the heat exchanger 140 in the air conditioner indoor unit is a heat exchanger for discharging heat, and the heat exchanger 140 in the air conditioner outdoor unit 100 is a heat exchanger for absorbing heat.

[0078] The air conditioner provided by the present invention, and the air conditioner outdoor unit 100 therein, can, during the cooling or heating process, dissipate heat to the heat dissipation device 130 connected to the electric control box 150 during rotation of the wind wheel, thereby ensuring that the electric control components in the electric control box 150 are within a reasonable temperature range, and the normal operation of the air conditioner will not be affected by excessive temperature.

[0079] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An air conditioner outdoor unit, characterized in that: The air conditioner outdoor unit comprises: A chassis, wherein the chassis is provided with an air outlet; An electric control box, at least part of which is disposed in the chassis; A wind wheel, the wind wheel is arranged in the chassis and located at the air outlet; A heat dissipation device is arranged in the chassis and is used to dissipate heat from the electric control box. Along the axial direction of the wind wheel, the heat dissipation device is located on one side of the wind wheel, and along the axial direction of the wind wheel, a projection of the heat dissipation device onto the wind wheel is at least partially located within the circumferential edge of the wind wheel.

2. The air conditioner outdoor unit according to claim 1, characterized in that: On a projection plane perpendicular to the axial direction, the heat dissipation device has a first projection on the projection plane, and the rotating plane of the impeller has a second projection on the projection plane. The first projection and the second projection are arranged to intersect, and along the radial direction of the impeller, the longest distance of the first projection within the circumferential edge of the second projection is L, the diameter of the wind wheel is D, and L is 5% to 40% of D.

3. The air conditioner outdoor unit according to claim 1, characterized in that: On a plane perpendicular to the axial direction, the shortest distance between the first projection and the axis of the wind wheel is L1, the longest distance between the first projection and the axis of the wind wheel is L2, a first circular area is formed with a point on the axis of the wind wheel as the center and L1 as the radius, a second circular area is formed with L2 as the radius, the area difference between the first circular area and the second circular area is S2, and the wind wheel rotates around its axis to form a third circular area S1, wherein 0.005<S2 / S1<0.

5.

4. The air conditioner outdoor unit according to claim 2, characterized in that: Along the axial direction of the wind wheel, the shortest distance between the top of the heat dissipation device and the wind wheel is L3, and L3>D*5%.

5. The air conditioner outdoor unit according to claim 1, characterized in that: The wind wheel comprises an axial flow wind wheel, the air outlet side of the axial flow wind wheel faces the air outlet, and the air inlet side of the axial flow wind wheel faces the heat dissipation device.

6. The air conditioner outdoor unit according to any one of claims 1 to 5, characterized in that: The air conditioner outdoor unit further comprises a heat exchanger, which is arranged in the chassis and located on a side of the wind wheel away from the air outlet.

7. The air conditioner outdoor unit according to claim 6, characterized in that: The heat exchanger extends along the circumference of the side wall of the chassis and encloses to form a heat exchange channel, and the heat exchange channel is connected to the air outlet.

8. The air conditioner outdoor unit according to claim 7, characterized in that: The air outlet is arranged at the top of the chassis, and the air conditioner outdoor unit also has an air inlet, which is arranged on the side wall of the chassis. An air flow channel is formed between the air outlet and the air inlet, and the air flow channel is connected to the heat exchange channel.

9. The air conditioner outdoor unit according to claim 6, characterized in that: The heat dissipation device is located on a side of the wind wheel away from the air outlet and close to a portion of the electric control box located inside the chassis.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The electric control box is connected to the heat dissipation device.

11. The air conditioner outdoor unit according to claim 6, characterized in that: The air conditioner outdoor unit further comprises a compressor assembly, which is connected to the heat exchanger and is arranged in the heat exchange channel.

12. An air conditioner, characterized in that: The air conditioner comprises the air conditioner outdoor unit according to any one of claims 1-11.

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