Heat dissipation structure, shell and air conditioning equipment

Abstract

The invention relates to a heat dissipation structure, a shell and air conditioning equipment, the heat dissipation structure comprises an air return channel and an electric control module, and the electric control module is arranged in the air return channel; the electric control module comprises a first electric control assembly and a second electric control assembly which are movably connected so that at least partial projection coincidence of the first electric control assembly and the second electric control assembly on the channel section of the air return channel can be achieved. According to the heat dissipation structure, the electric control module is arranged in the air return channel, so that the electric control module is located on the air return side of the air conditioning equipment, when the inlet air flow passes through the air return channel, heat generated by the electric control module can be taken away together, and the condensation phenomenon of the electric control module cannot be caused. The first electric control assembly and the second electric control assembly are movably connected, the first electric control assembly and the second electric control assembly can move relatively to the state that at least partial projections coincide, the air blocking area of the whole electric control module in the air return channel can be reduced, and the air inlet effect of the air return channel is guaranteed while the cooling effect of the electric control module is achieved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioning equipment, and particularly to a heat dissipation structure, a housing, and an air conditioning equipment. Background Art

[0002] The electrical box is a core component of electrical equipment such as air conditioning equipment, and undertakes key functions such as electrical control, safety protection, and signal processing.

[0003] During the operation of the electrical box, its internal components will continuously generate heat, thereby causing the temperature of the electrical box to rise due to heat accumulation. If heat dissipation is not carried out in time, it will affect the service life of the internal components of the electrical box and increase the risk of circuit damage inside the electrical box.

[0004] In the existing air conditioning equipment, the electrical box is often arranged on the air outlet side of the air conditioning equipment, and the air flow blown out from the air outlet side is used to cool the electrical box. When the air conditioning equipment is in the refrigeration mode, due to the large temperature difference between the refrigeration air flow and the electrical box, when the refrigeration air flow contacts the relatively high-temperature air around the electrical box, the water vapor in the air will condense into water droplets and adhere to the internal and external surfaces of the electrical box, which is extremely likely to cause the risk of condensation of the electrical box, and further increase the risk of circuit damage inside the electrical box. Summary of the Invention

[0005] This application provides a heat dissipation structure, a housing, and an air conditioning equipment to solve the technical problem that when cooling the electrical box in the prior art, it is easy to cause the risk of condensation of the electrical box, and further increase the risk of circuit damage inside the electrical box.

[0006] In a first aspect, this application provides a heat dissipation structure, including:

[0007] A return air channel;

[0008] An electric control module, the electric control module is arranged inside the return air channel; the electric control module includes a first electric control component and a second electric control component that are movably connected, so as to realize that at least part of the projections of the first electric control component and the second electric control component on the cross-section of the return air channel coincide.

[0009] Optionally, the first electric control component is rotatably connected or slidably connected to the second electric control component, and the second electric control component is connected to the channel wall of the return air channel.

[0010] Optionally, the first electric control component is rotatably connected to the second electric control component. When the first electric control component rotates to a direction parallel to the air inlet direction in its length direction, the projections of the first electric control component and the second electric control component on the cross-section of the return air channel coincide.

[0011] Optionally, the electric control module further includes a heat dissipation component, and the heat dissipation component is arranged on the first electric control component and / or the second electric control component.

[0012] Optionally, the electronic control module further includes a detachable connection component for fixing the relative positions between the first and second electronic control components.

[0013] Optionally, heat dissipation windows corresponding to the electronic control module are provided on the channel wall of the return air duct.

[0014] Optionally, the number of heat dissipation windows is multiple, and the multiple heat dissipation windows are arranged opposite to and / or adjacent to the electronic control module.

[0015] In a second aspect, the present application provides a housing including the heat dissipation structure provided in the first aspect of the present application. The return air duct is arranged inside the housing, and a first return air inlet and a second return air inlet are provided on the surface of the housing, and both the first return air inlet and the second return air inlet are communicated with the return air duct.

[0016] Optionally, the housing has a first side and a second side arranged opposite to each other. The first return air inlet is provided on the first side of the housing, and the second return air inlet is provided on the second side of the housing.

[0017] Optionally, the first return air inlet is provided at the rear side of the housing, and the electronic control module is arranged opposite to the first return air inlet.

[0018] In a third aspect, the present application provides an air conditioning device including the housing provided in the second aspect of the present application, and further including a fan assembly arranged inside the housing for driving air flow to move in the return air duct.

[0019] Optionally, the air conditioning device further includes a heat exchanger and a water receiving tray. The heat exchanger is arranged above the water receiving tray, the electronic control module is arranged below the water receiving tray, and at least part of the water receiving tray is configured as the channel wall of the return air duct.

[0020] Optionally, the electronic control module is provided with a waterproof structure.

[0021] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0022] The heat dissipation structure provided by the embodiments of the present application arranges the electronic control module inside the return air duct, making the electronic control module located on the return air side of the air conditioning device. During the operation of the air conditioning device, when the incoming air flow passes through the return air duct, it can take away the heat generated by the electronic control module together. Since the incoming air flow has not yet exchanged heat with the heat exchanger at this time, the temperature difference between it and the electronic control module is small. When the electronic control module is cooled by air by the incoming air flow, it will not cause the electronic control module to condense. While achieving efficient heat dissipation of the electronic control module, it can prevent the risk of circuit damage to the electronic control module due to condensation.

[0023] The first electronic control component and the second electronic control component are movably connected, and the first electronic control component and the second electronic control component can be relatively moved to a state where at least part of their projections overlap, which can reduce the wind-blocking area of the overall electronic control module inside the return air duct, and ensure the air intake effect of the return air duct while achieving the cooling effect of the electronic control module.

[0024] The housing and the air conditioner provided by the embodiments of the present application include the above-mentioned heat dissipation structure, which can avoid affecting the air intake effect of the return air duct while realizing the cooling of the electronic control module on the return air side. Therefore, it naturally has the technical effects possessed by the above-mentioned heat dissipation structure. Description of the Drawings

[0025] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with the present application, and are used together with the specification to explain the principles of the present application.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.

[0028] Figure 1 Top view of the heat dissipation structure provided by the embodiments of the present application Figure 1 ;

[0029] Figure 2 Top view of the heat dissipation structure provided by the embodiments of the present application Figure 2 ;

[0030] Figure 3 Top view of the heat dissipation structure provided by the embodiments of the present application Figure 3 ;

[0031] Figure 4 Front view of the electronic control module provided by the embodiments of the present application;

[0032] Figure 5 Structural schematic of the electronic control module provided by the embodiments of the present application Figure 1 ;

[0033] Figure 6 Structural schematic of the electronic control module provided by the embodiments of the present application Figure 2 ;

[0034] Figure 7 Top view provided by the embodiment of the present application Figure 6 ;

[0035] Figure 8 Schematic structural diagram of the air conditioning equipment provided by the embodiment of the present application

[0036] Figure 9 Cross-section provided by the embodiment of the present application of the air conditioning equipment Figure 1 ;

[0037] Figure 10 Cross-section provided by the embodiment of the present application of the air conditioning equipment Figure 2 ;

[0038] Figure 11 Schematic structure of the air conditioning equipment provided by the embodiment of the present application after removing the back panel Figure 1 ;

[0039] Figure 12 Schematic structure of the air conditioning equipment provided by the embodiment of the present application after removing the back panel Figure 2 ;

[0040] Figure 13 Schematic diagram of the partial structure of the air conditioning equipment provided by the embodiment of the present application

[0041] Explanation of reference numerals:

[0042] 1, return air duct; 11, first heat dissipation window; 12, second heat dissipation window; 13, third heat dissipation window;

[0043] 2, electric control module; 21, first electric control component; 211, box body; 212, controller; 213, first connection hole; 22, second electric control component; 221, mounting rack; 222, wiring component; 223, second connection hole; 224, third connection hole; 23, heat dissipation component; 24, connection component; 25, waterproof structure; 26, hinge component;

[0044] 3, housing; 31, first air return opening; 32, second air return opening; 33, front panel; 34, back panel; 35, first side panel; 36, second side panel; 37, top panel; 38, bottom panel; 39, air outlet;

[0045] 4, fan assembly;

[0046] 5, heat exchanger;

[0047] 6, water receiving tray. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0049] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure of this application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit this application. In addition, this application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0050] For ease of description, spatially relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. This spatially relative relationship term is intended to include different orientations of the device in use or operation other than the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will also change accordingly. For example, an element described as "below" or "beneath" other elements or features will subsequently be oriented as "above" or "over" other elements or features. Therefore, the example term "below" can include the orientations of above and below. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.

[0051] To solve the technical problem in the prior art that when cooling an electrical box, it is likely to cause a risk of condensation in the electrical box, thereby increasing the risk of circuit damage inside the electrical box, this application provides a heat dissipation structure, a housing 3, and an air conditioning device. The heat dissipation structure arranges the electronic control module 2 inside the return air duct 1, so that the electronic control module 2 is located on the return air side of the air conditioning device. During the operation of the air conditioning device, when the incoming air flow passes through the return air duct 1, it can take away the heat generated by the electronic control module 2 at the same time, realizing the cooling of the electronic control module 2 while avoiding the risk of condensation in the electronic control module 2.

[0052] Please refer to Figures 1 to 13, in the first aspect of the embodiment of the present application, a heat dissipation structure is provided, including a return air duct 1 and an electronic control module 2. The electronic control module 2 is disposed inside the return air duct 1 and can be in full contact with the incoming air flow inside the return air duct 1, such as Figure 1 as shown in Figure 1 (the arrow in

[0053] indicates the incoming direction of the incoming air flow).

[0054] When the air conditioning equipment is in an operating state, the incoming air flow passes through the return air duct 1, and the heat generated by the electronic control module 2 is taken away through air flow heat exchange, realizing air cooling of the electronic control module 2. Since the incoming air flow has not yet exchanged heat with the heat exchanger 5 at this time, the temperature of the incoming air flow is the same as the room temperature. When the electronic control module 2 is air-cooled by the incoming air flow, it will not cause the hot air around the electronic control module 2 to condense when encountering cold, preventing the risk of circuit damage to the electronic control module 2 due to condensation while realizing efficient heat dissipation of the electronic control module 2.

[0055] For Figure 1 example, the channel cross-section of the return air duct 1 is a cross-section perpendicular to the incoming direction of the incoming air flow (i.e., Figure 1 the direction indicated by the arrow in Figures 1 to 3 ). When the air conditioning equipment is operating, the first electronic control component 21 and the second electronic control component 22 are relatively moved to a state where at least part of their projections overlap, which can reduce the wind blocking area of the overall electronic control module 2 inside the return air duct 1, ensuring the incoming air effect of the return air duct 1 while achieving the cooling effect of the electronic control module 2, as

[0056] shown. Figure 3 It should be noted that splitting the electronic control module 2 into the first electronic control component 21 and the second electronic control component 22 which are movably connected can form various position states through the relative movement between the first electronic control component 21 and the second electronic control component 22. When the first electronic control component 21 and the second electronic control component 22 are relatively moved to a side-by-side arrangement state, it is convenient to realize the component assembly and maintenance inside the first electronic control component 21 and the second electronic control component 22, as Figure 1 shown; when the first electronic control component 21 and the second electronic control component 22 are relatively moved to a state where their projections overlap, it can reduce the blockage of the incoming air flow by the electronic control module 2, which is applicable to the operation process of the electronic control module 2 and the air conditioning equipment, as

[0057] In some embodiments of the present application, please refer to Figures 4 to 7, The first electronic control component 21 is rotationally or slidably connected to the second electronic control component 22. By rotating or sliding the first electronic control component 21 relative to the second electronic control component 22, the projections of the first electronic control component 21 and the second electronic control component 22 on the channel cross-section of the return air channel 1 can be made to coincide.

[0058] The second electronic control component 22 is connected to the channel wall of the return air channel 1, which can realize the fixed installation of the second electronic control component 22 inside the return air channel 1.

[0059] Specifically, the second electronic control component 22 can be used to install immovable electronic control elements, such as the wiring component 222 for engineering wiring, etc. And electronic control elements that are not affected by the movement of the first electronic control component 21, such as the controller 212, etc., can be installed in the first electronic control component 21.

[0060] As a specific embodiment of the present application, the second electronic control component 22 includes a mounting bracket 221 for setting the wiring component 222. The bottom of the mounting bracket 221 is provided with a third connection hole 224 for realizing fixed connection with the bottom channel wall of the return air channel 1, such as Figure 5 and Figure 6 shown.

[0061] In the above embodiment, when the first electronic control component 21 and the second electronic control component 22 are slidably connected, even if the projections of the first electronic control component 21 and the second electronic control component 22 on the channel cross-section of the return air channel 1 completely coincide (i.e., the sizes of the two electronic control components are exactly the same), the maximum reduction in the windward area of the overall electronic control module 2 can only be 50%, and it is impossible to achieve further numerical improvement. When the electronic control module 2 is set to a larger size to meet the installation requirements of electronic control elements, it is still necessary to consider how to further reduce the windward area of the electronic control module 2.

[0062] In some preferred embodiments of the present application, the first electronic control component 21 is rotationally connected to the second electronic control component 22. When the first electronic control component 21 rotates to a position where its length direction is parallel to the air inlet direction, the projections of the first electronic control component 21 and the second electronic control component 22 on the channel cross-section of the return air channel 1 coincide. At this time, the length of the first electronic control component 21 can be set long enough to meet the installation requirements of electronic control elements, so that the length ratio of the first electronic control component 21 in the electronic control module 2 is greater than the length ratio of the second electronic control component 22 in the electronic control module 2, such as Figure 3 shown ( Figure 3The left - right direction (in the length direction of the electronic control module 2), when the first electronic control module 2 rotates to make its length direction parallel to the air inlet direction, the projections of the first electronic control component 21 and the second electronic control component 22 on the cross - section of the return air channel 1 coincide, so that the first electronic control component 21 will not block the incoming air flow. Since the length ratio of the first electronic control component 21 on the electronic control module 2 is greater than 50%, the wind - blocking area formed by the electronic control module 2 in the return air channel 1 can be greatly reduced.

[0063] In some embodiments of the present application, please refer to Figures 1 to 7 , the first electronic control component 21 is hinged to one side of the second electronic control component 22 through a hinge component 26. The length of the first electronic control component 21 is greater than the length of the second electronic control component 22, and the width of the first electronic control component 21 is less than or equal to the length of the second electronic control component 22. The length direction of the second electronic control component 22 is perpendicular to the air inlet direction.

[0064] When the first electronic control component 21 rotates to coincide with the projection of the second electronic control component 22 on the cross - section of the return air channel 1, the first electronic control component 21 is in a non - wind - blocking position. The wind - blocking area of the electronic control module 2 in the return air channel 1 only depends on the projection area of the second electronic control component 22 on the cross - section of the return air channel 1, and the overall wind - blocking area of the electronic control module 2 can be reduced to more than 50%.

[0065] In some embodiments of the present application, please refer to Figures 1 to 7 , the electronic control module 2 further includes a heat - dissipation component 23. The heat - dissipation component 23 is arranged on the first electronic control component 21 and / or the second electronic control component 22, so that the heat generated by the first electronic control component 21 and / or the second electronic control component 22 can be quickly dissipated into the return air channel 1 through the heat - dissipation component 23.

[0066] In some embodiments of the present application, please refer to Figures 4 to 7 , since the controller 212 is provided in the first electronic control component 21 and the controller 212 contains multiple power devices, the heat generation is relatively large. Connect the heat - dissipation component 23 with multiple heat - dissipation fins to the first electronic control component 21, and greatly increase the heat - dissipation area of the first electronic control component 21 through the heat - dissipation component 23 to achieve efficient heat dissipation of the power components in the controller 212.

[0067] The heat - dissipation component 23 can conduct the heat generated inside the box body 211 of the first electronic control component 21 to the surface, and then dissipate the heat into the return air channel 1 through natural convection or forced convection (such as driving the incoming air flow in the return air channel 1 to flow through the fan component 4, etc.).

[0068] In some embodiments of the present application, please refer to Figure 7, the heat dissipation component 23 includes an IPM heat sink, which is used for targeted heat dissipation of the IPM module (i.e., intelligent power module) to ensure that power devices (such as IGBT, MOSFET, etc.), drive circuits, protection circuits, and interface circuits in the IPM module can operate stably and reliably.

[0069] It should be noted that when the heat dissipation component 23 is provided on the first electronic control component 21, it is preferably arranged on the back of the box body 211 along the length direction of the first electronic control component 21 to avoid affecting the assembly and maintenance of the electronic control elements inside the first electronic control component 21.

[0070] When the first electronic control component 21 rotates to the non-wind-blocking position, the projection of the heat dissipation component 23 on the cross-section of the return air channel 1 coincides with the projection of the second electronic control component 22, as Figure 1 and Figure 7 shown, to avoid the heat dissipation component 23 increasing the wind-blocking area of the entire electronic control module 2 in the return air channel 1.

[0071] In the above embodiment, when the electronic control module 2 is in the Figure 1 and Figure 7 shown state, in order to prevent the first electronic control component 21 from changing its position due to air flow disturbance when the incoming air flow passes through, the position of the first electronic control component 21 needs to be fixed. Specifically, the first electronic control component 21 can be connected to the channel wall of the return air channel 1, or the first electronic control component 21 and the second electronic control component 22 can be connected, both of which can achieve the purpose of this application.

[0072] In some embodiments of the present application, please refer to Figure 5 and Figure 6 , the electronic control module 2 further includes a detachable connection component 24. The connection component 24 is used to fix the relative positions between the first electronic control component 21 and the second electronic control component 22, which can prevent the first electronic control component 21 from changing its position under the impact of the incoming air flow, thereby affecting the wind-blocking area of the entire electronic control module 2 inside the return air channel 1, and avoiding damage to the first electronic control component 21 during the swinging process.

[0073] In some embodiments of the present application, please refer to Figure 5 and Figure 6 , the first electronic control component 21 is provided with a first connection hole 213, and the second electronic control component 22 is provided with a second connection hole 223. The connection component 24 is respectively connected to the first connection hole 213 and the second connection hole 223, thereby realizing the detachable connection between the first electronic control component 21 and the second electronic control component 22. The connection method can be threaded connection, snap connection, etc., that is, the connection component 24 can include components such as screws or snap pins.

[0074] In some embodiments of the present application, please refer toFigure 1 , Figure 2 , Figure 3 and Figure 13 , when the inlet air flow moves in the return air channel 1, a return air negative pressure will be generated at the heat dissipation window, so as to suck the air outside the heat dissipation window, and then form a heat dissipation air field around the electronic control module 2, realizing efficient heat dissipation of the electronic control module 2.

[0075] In some embodiments of the present application, in order to prevent external dust and other impurities from entering the interior of the return air channel 1 through the heat dissipation window, a dust-proof filter screen is provided on the heat dissipation window to prevent dust from entering the interior of the return air channel 1 and adsorbing on the electronic control module 2, affecting the use performance of the electronic control module 2.

[0076] It should be noted that the number of heat dissipation windows can be set to one or more, and its number and setting position can be specifically determined according to the installation position of the electronic control module 2 inside the return air channel 1. As long as a heat dissipation air field can be formed around the electronic control module 2, the purpose of the present application can be achieved.

[0077] In some embodiments of the present application, please refer to Figure 13 , the number of heat dissipation windows is multiple, and the multiple heat dissipation windows are arranged opposite to and / or adjacent to the electronic control module 2, forming air flows at multiple angles and in multiple directions around the electronic control module 2. A multi-directional heat dissipation air field can be formed through multi-directional air inlet, thereby realizing multi-directional cooling of the electronic control module 2, avoiding local overheating of the electronic control module 2, ensuring that the heat generated by the electronic control module 2 can be quickly and evenly dissipated, and improving the stability and service life of the operation of the electronic control module 2.

[0078] In some embodiments of the present application, please refer to Figure 13 , multiple heat dissipation windows are respectively opened on different channel walls of the return air channel 1 and have different orientations relative to the electronic control module 2.

[0079] Specifically, the multiple heat dissipation windows include a first heat dissipation window 11, a second heat dissipation window 12 and a third heat dissipation window 13. The first heat dissipation window 11 is adjacent to the electronic control module 2 and is opened at the bottom of the return air channel 1 for forming a heat dissipation air duct in the up and down direction; the second heat dissipation window 12 is arranged opposite to the electronic control module 2 and is located on the right side of the electronic control module for forming a heat dissipation air duct in the left and right direction; the third heat dissipation window 13 is arranged opposite to the electronic control module 2 for forming a heat dissipation air duct in the front and back direction. Through the cooperation of the first heat dissipation window 11, the second heat dissipation window 12 and the third heat dissipation window 13, a multi-directional heat dissipation air field can be formed around the electronic control module 2.

[0080] Please refer to Figures 1 to 13, in the second aspect of the embodiments of the present application, a housing 3 is provided, which includes the heat dissipation structure described in the above embodiments. The return air passage 1 is arranged inside the housing 3. The housing 3 is enclosed by a front plate 33, a back plate 34, a first side plate 35, a second side plate 36, a top plate 37 and a bottom plate 38. Part of the plate body of the housing 3 is configured as the passage wall of the return air passage 1 for realizing the flow of the incoming air current inside the housing 3, such as Figure 8 , Figure 9 and Figure 10 shown.

[0081] The surface of the housing 3 is provided with a first return air opening 31 and a second return air opening 32. Both the first return air opening 31 and the second return air opening 32 are communicated with the return air passage 1. Different return air openings can be selected according to needs for returning air, and both can drive the air current inside the return air passage 1 to flow, so as to realize reliable heat dissipation of the electronic control module 2 through the heat exchange between the incoming air current and the electronic control module 2.

[0082] In some embodiments of the present application, please refer to Figure 9 and Figure 10 , the housing 3 has a first side and a second side which are oppositely arranged. The first return air opening 31 is arranged on the first side of the housing 3, and the second return air opening 32 is arranged on the second side of the housing 3, which can be used to realize air intake on both sides of the housing 3. The air conditioner equipment can select one or both of them as the return air opening according to the installation orientation of the housing 3 or the operating working mode, which can realize more efficient and more comfortable air conditioning, especially having significant advantages in a complex space environment.

[0083] Specifically, the first return air opening 31 and the second return air opening 32 can be respectively arranged on the front and back sides, left and right sides or up and down sides of the housing 3, and the orientation of the return air opening can be determined according to the layout requirements of the housing 3.

[0084] In some embodiments of the present application, please refer to Figures 8 to 12 , the first return air opening 31 is arranged on the rear side of the housing 3 as the rear side return air opening of the housing 3. Correspondingly, the second return air opening 32 is arranged on the front side of the housing 3 as the front side return air opening of the housing 3, which can meet the two requirements of front return air and rear return air.

[0085] The electronic control module 2 is arranged opposite to the first return air opening 31 to facilitate the assembly and maintenance of the electronic control module 2 from the first return air opening 31.

[0086] Specifically, rotate the first electronic control component 21 to the Figure 11 shown state, so that both the first electronic control component 21 and the second electronic control component 22 face the outside of the first return air opening 31, which is convenient for the operator to maintain or install and debug the electronic control module 2.

[0087] In some embodiments of the present application, detachable air inlet grilles are provided at both the first air return opening 31 and the second air return opening 32 for filtering the incoming air flow.

[0088] In some embodiments of the present application, both the first air return opening 31 and the second air return opening 32 have cover plates that are movably arranged, and the opening and closing of the first air return opening 31 and the second air return opening 32 can be controlled according to the air return mode.

[0089] In some embodiments of the present application, please refer to Figure 9 , the electronic control module 2 is located on the air return channel 1 between the first air return opening 31 and the second air return opening 32. When the air conditioner adopts the rear air return mode, the second air return opening 32 on the front side of the housing 3 is closed, and the first air return opening 31 on the rear side of the housing 3 is opened. The incoming air flow moves along the Figure 9 arrow direction shown in the figure. When the incoming air flow passes through the air return channel 1, it will take away the heat generated by the electronic control module 2 at the same time.

[0090] When the air conditioner adopts the front air return mode, the first air return opening 31 on the rear side of the housing 3 is closed, and the second air return opening 32 on the front side of the housing 3 is opened. Most of the incoming air flow enters the interior of the housing 3 along the Figure 10 solid arrow shown in the figure. At the same time, a negative air return pressure is generated on the air flow around the electronic control module 2, so that a part of the incoming air flow enters the interior of the housing 3 through the heat dissipation window around the electronic control module 2, forming a heat dissipation air field around the electronic control module 2, and merging into the incoming air flow entering from the second air return opening 32 along the Figure 10 dashed arrow shown in the figure.

[0091] It should be noted that by connecting the air return channel 1 to both the first air return opening 31 and the second air return opening 32 at the same time in the present application, the electronic control module 2 can achieve good heat dissipation effects whether the air enters through the first air return opening 31 or the second air return opening 32.

[0092] In some embodiments of the present application, please refer to Figure 13 , the electronic control module 2 is arranged in the edge area of the air return channel 1, specifically, it can be arranged close to the first side plate 35 or the second side plate 36 of the housing 3. This is because the air intake volume in the central area of the air return channel 1 is larger than that in the edge area. By arranging the electronic control module 2 in the edge area of the air return channel 1, the influence of the electronic control module 2 on the air intake volume of the air return channel can be reduced, and the increase in energy consumption during the operation of the air conditioner can be avoided.

[0093] As a specific embodiment of the present application, please refer to Figure 11 and Figure 13, the electronic control module 2 is disposed close to the first side plate 35. The first heat dissipation window 11, the second heat dissipation window 12, and the third heat dissipation window 13 are respectively formed on the bottom plate 38, the first side plate 35, and the front plate 33 of the housing 3, so as to form a multi-directional heat dissipation air field around the electronic control module 2 for dissipating heat from the electronic control module 2.

[0094] Please refer to Figures 1 to 13 , a third aspect of the embodiment of the present application provides an air conditioning device, including the housing 3 described in the above embodiment, and further including a fan assembly 4. The fan assembly 4 is disposed inside the housing 3 and is used to drive the air flow to move in the return air passage 1, so as to form a heat dissipation air field around the electronic control module 2 through the return air negative pressure, and solve the heat dissipation problem of the electronic control module 2 while realizing the internal air flow driving of the air conditioning device.

[0095] In some embodiments of the present application, please refer to Figures 8 to 13 , the air conditioning device further includes a heat exchanger 5 and a water receiving tray 6. The heat exchanger 5 is disposed above the water receiving tray 6. The water receiving tray 6 is used to receive the condensed water generated by the heat exchanger 5 during the heat exchange process, and ensure that the condensed water can be discharged orderly, so as to avoid water accumulation or leakage inside the housing 3.

[0096] The electronic control module 2 is disposed below the water receiving tray 6, which can prevent the water droplets condensed on the surface of the heat exchanger 5 from directly dropping onto the electronic control module 2, and prevent the electronic control module 2 from short-circuiting and being damaged due to water ingress.

[0097] At least a part of the water receiving tray 6 is configured as the channel wall of the return air passage 1. When the air enters through the first return air inlet 31, the incoming air flow can flow in the return air passage 1 formed by the water receiving tray 6 and the plate bodies of the housing 3 (i.e., the bottom plate 38, the first side plate 35, the second side plate 36, etc.), as Figure 9 shown.

[0098] In some embodiments of the present application, please refer to Figure 9 and Figure 10 , the rear side of the water receiving tray 6 is attached to the back plate 34, and the front side of the water receiving tray 6 has a preset distance from the front plate 33, so as to form an L-shaped return air passage 1 inside the housing 3, thereby realizing the connection between the return air passage 1 and the first return air inlet 31 and the second return air inlet 32. When the air conditioning device adopts the front return air mode, the first return air inlet 31 is in a closed state. Since the second return air inlet 32 is connected to the return air passage 1, when the incoming air flow enters from the second return air inlet, a heat dissipation air field can be formed at the heat dissipation window through the return air negative pressure inside the return air passage 1, effectively dissipating heat from the electronic control module 2.

[0099] In some embodiments of the present application, please refer to Figure 5 and Figure 6, in order to further improve the waterproof performance of the electronic control module 2, the electronic control module 2 is provided with a waterproof structure 25, which can effectively prevent the water in the water receiving tray 6 from splashing onto the electronic control module 2 and damaging the internal electronic control components when cleaning the heat exchanger 5 during after-sales maintenance.

[0100] In some embodiments of the present application, please refer to Figure 5 and Figure 6 , the waterproof structure 25 can be components such as a waterproof cover and a waterproof hood, which are used to achieve waterproof protection for the internal electronic control components (such as the controller 212, etc.) of the electronic control module 2.

[0101] As a specific embodiment of the present application, the waterproof structure 25 includes a protective cover that is hermetically connected to the box body 211 of the first electronic control assembly 21, which can prevent water droplets from entering the inside of the box body 211 and achieve waterproof protection for the internal electronic control components such as the controller 212 in the box body 211.

[0102] In some embodiments of the present application, please refer to Figure 8 , Figure 9 and Figure 10 , in some embodiments of the present application, the air-conditioning equipment is a large-cooling-capacity air-cooled cabinet (i.e., a high-power air-cooled refrigeration equipment), which can be set in large places such as factory workshops, gymnasiums, shopping malls, agricultural planting greenhouses, and grain depots, and is used to adjust the temperature inside the above-mentioned places.

[0103] The housing 3 is the housing 3 of the indoor unit of the air-cooled cabinet air conditioner. An air outlet 39 is provided on the top plate 37 of the housing 3, which is used to output the heat-exchanged air flow, so as to achieve the adjustment of the indoor air temperature.

[0104] Taking the production workshop as an example, for the case where the internal space of the workshop is large, the indoor unit of the air-cooled cabinet air conditioner can be directly placed inside the workshop and operated in the front air return mode or the rear air return mode. For the case where the internal space of the workshop is limited, the indoor unit of the air-cooled cabinet air conditioner needs to be placed in the aisle outside the workshop, and then the first air return port 31 and the air outlet 39 are connected to the inside of the workshop, and the rear air return mode is adopted for operation.

[0105] In the above two cases, while adjusting the indoor temperature, the heat of the electronic control module 2 can be taken away by the movement of the incoming air flow inside the air return channel 1, so as to achieve efficient and reliable heat dissipation of the electronic control module 2.

[0106] Please refer to Figures 1 to 13 , in some embodiments of the present application, the heat dissipation process of the electronic control module 2 inside the air-conditioning equipment is as follows:

[0107] Step 1: Before the air-conditioning equipment operates, rotate the first electronic control assembly 21 to the position where its projection on the cross-section of the air return channel 1 coincides with that of the second electronic control assembly 22, so as to minimize the wind-blocking area of the electronic control module 2 in the air return channel 1, such asFigure 9 , Figure 10 and Figure 12 as shown.

[0108] Step 2: When the air conditioner adopts the rear return air mode, the incoming air flow enters the return air channel 1 from the first return air inlet 31, passes through the gap between the water receiving tray 6 and the front panel 33, exchanges heat with the heat exchanger 5 driven by the fan assembly 4, and finally is output through the air outlet 39. During the operation of the air conditioner, the incoming air flow under the water receiving tray 6 can be used to cool the electronic control module 2 by air cooling.

[0109] When the air conditioner adopts the front return air mode, driven by the fan assembly 4, the incoming air flow enters the housing 3 from the second return air inlet 32 for heat exchange and output. At the same time, a return air negative pressure is generated inside the return air channel 1, so that a small part of the air flow enters from the heat dissipation window to form a heat dissipation air field, realizing the heat dissipation of the electronic control module 2.

[0110] Step 3: When it is necessary to repair the electronic control module 2, open the air inlet grille at the first return air inlet 31, remove the connection component 24, and rotate the first electronic control component 21 to face the outside of the first return air inlet 31. At this time, both the first electronic control component 21 and the second electronic control component 22 face the outside, as Figure 11 shown, which is convenient for maintenance and debugging.

[0111] After the debugging is completed, return the first electronic control component 21 to the Figure 12 state shown, and fix it through the connection component 24 to reduce the wind blocking area of the electronic control module 2 inside the return air channel 1.

[0112] It should be understood that the terms used in this document are only for the purpose of describing specific exemplary embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used in this document may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described in this document are not to be construed 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.

[0113] Although the terms first, second, third, etc. may be used herein 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 may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used in the text. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0114] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A heat dissipation structure, characterized in that: include: Return air duct (1); An electric control module (2), the electric control module (2) being arranged inside the return air duct (1); The electric control module (2) comprises a first electric control component (21) and a second electric control component (22) which are movably connected, so as to achieve at least partial overlap of the projections of the first electric control component (21) and the second electric control component (22) on the channel cross section of the return air channel (1).

2. The heat dissipation structure according to claim 1, characterized in that: The first electric control component (21) is rotationally connected or slidably connected to the second electric control component (22), and the second electric control component (22) is connected to the channel wall of the return air channel (1).

3. The heat dissipation structure according to claim 1, characterized in that: The first electric control component (21) is rotatably connected to the second electric control component (22). When the first electric control component (21) is rotated until its length direction is parallel to the air inlet direction, the projections of the first electric control component (21) and the second electric control component (22) on the channel cross section of the return air channel (1) overlap.

4. The heat dissipation structure according to claim 1, characterized in that: The electric control module (2) further comprises a heat dissipation component (23), wherein the heat dissipation component (23) is arranged on the first electric control component (21) and / or the second electric control component (22).

5. The heat dissipation structure according to claim 1, characterized in that: The electric control module (2) further comprises a detachable connection component (24), wherein the connection component (24) is used to fix the relative position between the first electric control component (21) and the second electric control component (22).

6. The heat dissipation structure according to any one of claims 1 to 5, characterized in that: A heat dissipation window corresponding to the electric control module (2) is provided on the channel wall of the return air channel (1).

7. The heat dissipation structure according to claim 6, characterized in that: The number of the heat dissipation windows is multiple, and the multiple heat dissipation windows are arranged relative to and / or adjacent to the electric control module (2).

8. A housing (3), characterized in that: The heat dissipation structure comprises the heat dissipation structure as claimed in any one of claims 1 to 7, wherein the return air channel (1) is arranged inside the shell (3), and the surface of the shell (3) is provided with a first return air port (31) and a second return air port (32), and the first return air port (31) and the second return air port (32) are both connected to the return air channel (1).

9. The housing (3) according to claim 8, characterized in that The shell (3) has a first side and a second side that are arranged opposite to each other, the first return air outlet (31) is arranged on the first side of the shell (3), and the second return air outlet (32) is arranged on the second side of the shell (3).

10. The heat dissipation structure according to claim 8, characterized in that: The first air return port (31) is arranged at the rear side of the housing (3), and the electric control module (2) is arranged opposite to the first air return port (31).

11. An air conditioning device, characterized in that: It comprises a housing (3) as claimed in any one of claims 8 to 10, and further comprises a fan assembly (4), wherein the fan assembly (4) is arranged inside the housing (3) and is used to drive the air flow to move in the return air channel (1).

12. The air conditioning device according to claim 11, characterized in that: It also includes a heat exchanger (5) and a water receiving tray (6), wherein the heat exchanger (5) is arranged above the water receiving tray (6), and the electric control module (2) is arranged below the water receiving tray (6), and at least a portion of the water receiving tray (6) is configured as a channel wall of the return air channel (1).

13. The air conditioning device according to claim 12, characterized in that: The electric control module (2) is provided with a waterproof structure (25).

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