A cooling device, an outdoor unit of an air conditioner, and an air conditioning system

Abstract

The present invention relates to the technical field of air conditioners, and particularly relates to a cooling device, an outdoor unit of an air conditioner, and an air conditioning system. The cooling device provided by an embodiment of the present invention includes a valve body box, a control valve, a water inlet pipe, and a spray head assembly; a connection assembly is provided on the valve body box. When the outdoor unit of the air conditioner has a communication function, the control valve can be controlled through the control system of the outdoor unit of the air conditioner, thereby controlling the on-off of the water circuit; when the outdoor unit of the air conditioner does not have a communication function, the main control board can be very conveniently connected to the valve body box through the connection assembly, and the control valve is controlled through the main control board. By reasonably selecting a cooling device according to the actual application scenario, the cooling requirements of two types of outdoor units of air conditioners with and without communication functions can be satisfied simultaneously, without the need to set two schemes, so that a large amount of design time and cost can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a cooling device, an outdoor unit of an air conditioner, and an air conditioning system. Background Art

[0002] Generally, a device capable of spraying water above an outdoor heat exchanger is adopted to cool the condenser of the outdoor unit of the air conditioner. The cooling water evaporates on the surface of the condenser to improve the heat exchange effect of the condenser. The evaporative cooling device usually includes an electronic control module, a detection module, a valve body module, a pipeline module, and a nozzle module. When it is detected that the ambient temperature is too high and the outdoor unit of the air conditioner is turned on, the electronic control module controls the on-off of the control valve inside the valve body module, thereby realizing the start and stop of the device.

[0003] The control systems of some outdoor units of air conditioners themselves have communication functions and can realize the functions of detecting the ambient temperature and controlling the start and stop of the control valve. However, the control systems of some other outdoor units of air conditioners do not have communication functions, so they cannot communicate with the outdoor units of air conditioners. It is necessary to set up independent detection modules and control modules to detect and determine the start and stop of the evaporative cooling device, and then realize the automatic control of the evaporative cooling device. However, the solutions for communication and non-communication evaporative cooling devices cannot be compatible, and it is necessary to set up two sets of evaporative cooling device solutions, which is time-consuming and laborious. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing cooling device cannot be compatible with the outdoor unit of the air conditioner with communication function and without communication function. For different outdoor units of air conditioners, it is necessary to separately design corresponding evaporative cooling device solutions, which is time-consuming and laborious.

[0005] To solve the above technical problem, an embodiment of one aspect of the present invention provides a cooling device for an outdoor unit of an air conditioner. The cooling device includes: a valve body box, a control valve, a water inlet pipe, and a nozzle assembly. The control valve is arranged inside the valve body box. The water inlet pipe is communicated with the nozzle assembly to form a cooling passage. The control valve is arranged on the cooling passage to connect or disconnect the cooling passage. A connection component for connecting to the main control board is arranged on the valve body box.

[0006] According to an embodiment of the present invention, the cooling device further includes an electric control box. The valve body box is detachably connected to the electric control box through the connection component, and the main control board is installed inside the electric control box.

[0007] According to an embodiment of the present invention, the connection component includes a connection plate, and the electric control box and the valve body box are connected through the connection plate.

[0008] According to an embodiment of the present invention, the connecting plate includes a first connecting portion and a second connecting portion. The first connecting portion is detachably connected to the valve body box, and the second connecting portion is fixedly connected to the electric control box.

[0009] According to an embodiment of the present invention, the electric control box is installed on the upper side of the valve body box; the first connecting portion is provided with a first through hole, and the valve body box is provided with a second through hole;

[0010] The valve body box and the first connecting portion are connected by screws, and the second connecting portion is welded to the electric control box.

[0011] According to an embodiment of the present invention, the valve body box and the electric control box are arranged side by side left and right. The first connecting portion is provided with a first through hole, and the valve body box is provided with a second through hole;

[0012] The valve body box and the first connecting portion are connected by screws, and the second connecting portion is welded to the electric control box.

[0013] According to an embodiment of the present invention, the electric control box and the valve body box are arranged side by side front and back; the connecting plate includes a first plate body and a second plate body. The first plate body is fixedly connected to the valve body box, and the second plate body is detachably connected to the electric control box;

[0014] Mounting through holes are correspondingly provided on the first plate body and the second plate body, and the first plate body and the second plate body are connected by screws.

[0015] According to an embodiment of the present invention, the valve body box is provided with a knockout hole, and a first cable joint is connected to the electric control box. The first cable joint passes through the knockout hole and extends into the valve body box.

[0016] According to an embodiment of the present invention, a sealing gasket is further provided between the valve body box and the electric control box; a through hole corresponding to the knockout hole is provided on the sealing gasket; the first cable joint passes through the through hole and extends into the valve body box.

[0017] According to an embodiment of the present invention, the cooling device further includes a filter, and the water inlet pipe is communicated with the spray head assembly through the filter.

[0018] According to an embodiment of the present invention, the cooling device further includes a flange joint and a connecting pipe;

[0019] The water inlet pipe is communicated with the water inlet end of the filter through the flange joint. The water outlet end of the filter is communicated with the water inlet end of the control valve through the connecting pipe, and the water outlet end of the control valve is communicated with the water inlet end of the spray head assembly.

[0020] According to an embodiment of the present invention, a connection joint is further provided on the valve body box, and the control valve is communicated with the nozzle assembly through the connection joint.

[0021] According to an embodiment of the present invention, the cooling device further includes a first fixing plate, the first fixing plate is connected to the inner wall of the valve body box, and the control valve is fixedly installed in the valve body box through the first fixing plate.

[0022] According to an embodiment of the present invention, the cooling device further includes a second fixing plate, the second fixing plate is connected to the inner wall of the electric control box, and the main control board is connected to the second fixing plate.

[0023] According to an embodiment of the present invention, the cooling device further includes an isolation column, and the main control board is connected to the second fixing plate through the isolation column.

[0024] According to an embodiment of the present invention, a mounting bracket is provided on the electric control box and / or the valve body box, and the electric control box and the valve body box are connected to the housing of the outdoor unit of the air conditioner or connected to the mounting surface outside the outdoor unit of the air conditioner through the mounting bracket.

[0025] Advantages of the present invention: The cooling device provided by the embodiment of the present invention includes a valve body box, a control valve, a water inlet pipe and a nozzle assembly. The control valve is arranged in the valve body box and is located on the cooling passage to connect or disconnect the cooling passage; and a connection component is provided on the valve body box. When the control system of the outdoor unit of the air conditioner has a communication function, the control valve can be controlled through the control system of the outdoor unit of the air conditioner, and then the on-off of the water circuit can be controlled; when the control system of the outdoor unit of the air conditioner does not have a communication function, the main control board can be very conveniently connected to the valve body box through the connection component, and the control valve can be controlled through the main control board. Using one cooling device can meet the cooling requirements of two types of outdoor units of air conditioners with and without communication functions at the same time, and there is no need to set two schemes, so a large amount of design time and cost can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 It is a three-dimensional view of an outdoor unit of an air conditioner provided by an embodiment of the present invention;

[0028] Figure 2Partial perspective view of the outdoor unit of the air conditioner provided by an embodiment of the present invention;

[0029] Figure 3 Schematic structural diagram of the valve body box provided by an embodiment of the present invention;

[0030] Figure 4 Side view of the valve body box provided by an embodiment of the present invention;

[0031] Figure 5 Schematic internal structure diagram of the valve body box provided by an embodiment of the present invention;

[0032] Figure 6 Schematic structural diagram of the cooperation between the valve body box and the electric control box provided by another embodiment of the present invention;

[0033] Figure 7 Side view of the cooperation between the valve body box and the electric control box provided by another embodiment of the present invention;

[0034] Figure 8 Schematic internal structure diagram of the cooperation between the valve body box and the electric control box provided by another embodiment of the present invention;

[0035] Figure 9 Exploded structural diagram of the cooperation between the valve body box and the electric control box provided by another embodiment of the present invention;

[0036] Figure 10 Schematic diagram of the cooperation between the valve body box and the electric control box provided by yet another embodiment of the present invention;

[0037] Figure 11 Schematic diagram of the cooperation between the valve body box and the electric control box provided by still another embodiment of the present invention;

[0038] Figure 12 Schematic structural diagram of the spray head assembly.

[0039] Icons: 1 - Outdoor unit of the air conditioner; 11 - Exhaust temperature sensor;

[0040] 2 - Valve body box; 21 - Control valve; 211 - Valve body fixing bracket; 22 - Flange joint; 23 - Quick connector; 24 - Filter; 25 - Connecting pipe; 26 - Knock-out hole; 27 - Second cable joint; 28 - First fixing plate; 29 - Second through hole;

[0041] 3 - Electric control box; 31 - Main control board; 32 - Second fixing plate; 33 - Isolation column; 34 - Wiring bracket; 35 - Maintenance cover plate; 36 - Installation bracket; 37 - First cable joint;

[0042] 4 - Gasket; 41 - Through hole;

[0043] 5 - Water inlet pipe;

[0044] 6 - connecting hose;

[0045] 7 - nozzle assembly; 71 - mounting plate; 711 - mounting hole; 72 - nozzle; 73 - connecting joint; 731 - connecting interface; 732 - spraying interface;

[0046] 8 - connecting plate; 81 - first connecting portion; 811 - first through - hole; 82 - second connecting portion. Detailed implementation manners

[0047] In order to more clearly understand the above - mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] As Figures 1 to 12 shown, an embodiment of one aspect of the present invention provides a cooling device for an outdoor unit 1 of an air conditioner. The cooling device includes: a valve body box 2, a control valve 21, a water inlet pipe 5, and a nozzle assembly 7. The control valve 21 is disposed inside the valve body box 2. The water inlet pipe 5 is communicated with the nozzle assembly 7 to form a cooling passage. The control valve 21 is disposed on the cooling passage to connect or disconnect the cooling passage; a connection assembly for connecting with the main control board 31 is provided on the valve body box 2.

[0049] The cooling device provided by the embodiment of the present invention includes a valve body box 2, a control valve 21, a water inlet pipe 5, and a nozzle assembly 7. The control valve 21 is disposed inside the valve body box 2. The control valve 21 is located on the cooling passage to connect or disconnect the cooling passage; and a connection assembly is provided on the valve body box 2. When the control system of the outdoor unit 1 of the air conditioner has a communication function, the control valve 21 can be controlled through the control system of the outdoor unit 1 of the air conditioner, and then the on - off of the water circuit can be controlled; when the control system of the outdoor unit 1 of the air conditioner does not have a communication function, the main control board 31 can be very conveniently connected to the valve body box 2 through the connection assembly, and the control valve 21 can be controlled through the main control board 31. Using one cooling device can meet the cooling requirements of two types of outdoor units 1 of air conditioners with and without communication functions at the same time, without the need to set two solutions, so a large amount of design time and cost can be saved. Among them, in this embodiment, the main control board 31 is used to control the cooling device. The main control board 31 is electrically connected to the control valve 21, and the control valve 21 is controlled by the main control board 31 to be opened or closed, thereby controlling the corresponding cooling passage to be connected or disconnected.

[0050] Optionally, in this embodiment, the control valve 21 is a solenoid valve, and the opening or closing of the solenoid valve is controlled by a control program on the main control board 31 to achieve automatic control of the nozzle assembly 7. In this embodiment, heat dissipation holes are further provided on the valve body box 2, and air flow is introduced into the valve body box 2 through the heat dissipation holes, thereby dissipating heat from the coil of the solenoid valve.

[0051] As Figure 3 , Figure 7 , Figure 8 and Figure 9 shown, the cooling device further includes an electric control box 3, and the valve body box 2 is detachably connected to the electric control box 3 through the connection component, and the electric control box 3 is used to install the main control board 31. In this embodiment, placing the main control board 31 in the electric control box 3 can prevent the main control from being knocked when exposed on the outside, and can also prevent the main control board 31 from being exposed to rain and short-circuited.

[0052] In this embodiment, a set of cooling device is used, which can be reasonably selected according to the actual application scenario. The electric control box 3 can be an optional configuration. When not needed, only the valve body box 2 needs to be installed. When needed, the combination can be simply achieved by integrating the electric control box 3 and the valve body box 2, which can also make the overall structure more compact.

[0053] It can be understood that in this application, the main control board 31 may not be placed in another independent box. For example, the main control board 31 is placed in the valve body box 2 through the connection component (as long as waterproofing is done), or the main control board 31 is directly connected to the outside of the valve body box 2 through the connection component, which can also achieve the design concept of the present invention and should fall within the protection scope of the present invention.

[0054] As Figure 9 shown, a maintenance cover plate 35 is provided at the front end of the valve body box 2 and the electric control box 3, and the components in the valve body box 2 and the electric control box 3 can be repaired and replaced by opening the maintenance cover plate 35.

[0055] As Figures 7 to 9 shown, the connection component includes a connecting plate 8, the connecting plate 8 is connected to the electric control box 3 or the valve body box 2, and the electric control box 3 and the valve body box 2 are connected through the connecting plate 8; preferably, as Figures 7 to 9 shown, the connecting plate 8 includes a first connecting portion 81 and a second connecting portion 82, the first connecting portion 81 is detachably connected to the valve body box 2, and the second connecting portion 82 is fixedly connected to the electric control box 3. Optionally, as Figure 5 and Figure 7As shown, in this embodiment, a first through hole 811 is provided on the first connecting portion 81, a second through hole 29 is provided on the valve body box 2, the first connecting portion 81 is connected to the valve body box 2 by screws, and the second connecting portion 82 is fixedly connected to the electric control box 3 by welding. The second connecting portion 82 is connected by welding, so the waterproof effect of the electric control box 3 is better.

[0056] It should be noted that, in this embodiment, the first connecting portion 81 can also be detachably connected to the valve body box 2 by clamping or plugging, and the second connecting portion 82 can be fixedly connected to the electric control box 3 by integrally molding.

[0057] According to an embodiment of the present invention, as Figure 5 and Figure 8 shown, according to an embodiment of the present invention, a filter 24 is further provided in the valve body box 2, and the water inlet pipe 5 is communicated with the spray head assembly 7 through the filter 24. As Figure 5 and Figure 8 shown, the filter 24 is provided at the front end of the solenoid valve. By providing the filter 24, sundries can be prevented from entering the solenoid valve or the nozzle 72, causing the solenoid valve or the nozzle 72 to be blocked and fail. Optionally, in this embodiment, the filter 24 adopts a filter mesh structure.

[0058] According to an embodiment of the present invention, as Figure 1 and Figure 2 shown, the cooling device further includes a connecting hose 6, and the water inlet pipe 5 is communicated with the water inlet end of the valve body box 2 through the connecting hose 6. In this embodiment, the water inlet pipe 5 is made of a PVC pipe (abbreviation of Polyvinylchlorid, mainly composed of polyvinyl chloride), and the pipe material is relatively hard, resulting in a relatively fixed position between the valve body box 2 and the water inlet pipe 5, which limits the installation position of the valve body box 2. In this embodiment, a connecting hose 6 is provided between the water inlet pipe 5 and the valve body box 2. The connecting hose 6 can deform, so the installation position of the valve body box 2 can be adjusted flexibly. For example, when the actual installation space is limited, the user can arrange it flexibly. The valve body box 2 can be installed on other panels of the outdoor unit 1 of the air conditioner, or the valve body box 2 can be installed on other mounting brackets 36 or walls. Optionally, in this embodiment, the connecting hose 6 is a stainless steel corrugated pipe, a PA pipe (Polyamid, polyamide) or a PP pipe (Polypropylene, polypropylene). The PA pipe is also a nylon pipe. The nylon pipe and the stainless steel corrugated pipe have good corrosion resistance and oxidation resistance and are not easily corroded and damaged outdoors.

[0059] According to an embodiment of the present invention, as Figure 5 and Figure 8As shown, the cooling device further includes a flange joint 22 and a connecting pipe 25; the water inlet pipe 5 is communicated with the water inlet end of the filter 24 through the flange joint 22, the water outlet end of the filter 24 is communicated with the water inlet end of the control valve 21 through the connecting pipe 25, and the water outlet end of the control valve 21 is communicated with the water inlet end of the spray head assembly 7. Among them, the flange joint 22 is an elbow structure. In this embodiment, the connecting hose 6 is arranged at the lower end of the valve body box 2, the lower end of the flange joint 22 passes through the lower side of the valve body box 2 and is communicated with the external connecting hose 6, and then the part of the flange joint 22 located inside the valve body box 2 turns from the vertical direction to the horizontal direction and is communicated with the filter 24. The filter 24 is communicated with the solenoid valve through the connecting pipe 25, so that the longitudinal height of the valve body box 2 can be reduced.

[0060] As Figure 5 and Figure 8 shown, a connecting joint is further arranged on the valve body box 2; optionally, in this embodiment, the connecting joint is a quick-connect joint 23, and the control valve 21 is communicated with the spray head assembly 7 through the quick-connect joint 23. Among them, the control valve 21 is connected with the quick-connect joint 23. During assembly, only by connecting one end of the connecting pipe 25 with the quick-connect joint 23 and the other end with the spray head assembly 7, the water circuit of the cooling device can be connected, and the use is very convenient. Among them, the number of the quick-connect joints 23 can be set to one or multiple. For example, if the area to be cooled in the outdoor unit 1 of the air conditioner is relatively large, multiple groups of independent water circuits can be set. At this time, the number of the quick-connect joints 23 is the same as the number of the water circuits, which is convenient for the valve body box 2 to be connected with all the water circuits. In this embodiment, the flange joint 22, the control valve 21, the quick-connect joint 23 and the filter 24 are integrated in a box body, so that the overall structure of the valve body box 2 is more compact, occupies less space and is convenient for assembly. Of course, in this embodiment, the connecting joint can also be an ordinary joint structure.

[0061] According to an embodiment of the present invention, as Figure 5 and Figure 8 shown, the cooling device further includes a first fixing plate 28, the first fixing plate 28 is connected to the inner wall of the valve body box 2, and the control valve 21 is fixedly installed in the valve body box 2 through the first fixing plate 28; among them, the solenoid valve is self-equipped with a valve body fixing bracket 211. In this embodiment, by arranging a first fixing plate 28 in the valve body box 2, the first fixing plate 28 is fixedly connected to the inner side wall of the valve body box 2, and then the first fixing plate 28 is fixedly connected to the valve body fixing bracket 211 (screw connection can be adopted), so as to fix the solenoid valve, avoiding the problem that the solenoid valve moves around and causes the pipeline interface to loosen.

[0062] As Figure 8As shown, the electric control box 3 is used to install the main control board 31. Since the electric control box 3 and the valve body box 2 can be detachably connected through the connecting plate 8, when the control system of the outdoor unit 1 of the air conditioner does not have a communication function, the main control board 31 is placed in the electric control box 3, and then the electric control box 3 is connected to the valve body box 2 through the connecting plate 8. Through a set of cooling devices, the cooling requirements of both the communication and non-communication models of the outdoor unit 1 of the air conditioner can be taken into account, with a simple structure and convenient assembly.

[0063] As Figure 8 shown, the cooling device further includes a second fixing plate 32, the second fixing plate 32 is connected to the inner wall of the electric control box 3, and the main control board 31 is connected to the second fixing plate 32. As Figure 8 shown, the cooling device further includes spacer posts 33, the main control board 31 is connected to the second fixing plate 32 through the spacer posts 33. The main control board 31 is connected to the second fixing plate 32 through the spacer posts 33. Since there are electrical components on the main control board 31, if the main control board 31 directly contacts the second fixing plate 32, it may cause damage to the electrical components on the main control board 31. Therefore, in this embodiment, spacer posts 33 are provided to form a gap between the main control board 31 and the second fixing plate 32, and the electrical components on the main control board 31 are located in the gap, which can avoid damage to the main control board 31; in this embodiment, there are multiple spacer posts 33 between the main control board 31 and the second fixing plate 32, and the spacer posts 33 are arranged at positions where there are no electrical components on the main control board 31.

[0064] According to an embodiment of the present invention, as Figure 9 shown, at least one first cable connector 37 is provided on the electric control box 3, and at least one second cable connector 27 is provided on the valve body box 2. The wire extends into the electric control box 3 through the first cable connector 37 to supply power to the main control board 31, and the wire enters the valve body box 2 through the second cable connector 27 to supply power to the solenoid valve; wherein, a wire routing bracket 34 is further provided in the electric control box 3. By providing the wire routing bracket 34, the wires entering the electric control box 3 can be constrained to avoid wire entanglement problems. Among them, there are two first cable connectors 37 and second cable connectors 27 respectively, one for passing weak electricity and the other for passing strong electricity, and both the first cable connector 37 and the second cable connector 27 are waterproof connectors, which can prevent the water in the valve body box 2 from entering the electric control box 3 and causing a short circuit of the main control board 31 in the electric control box 3.

[0065] According to an embodiment of the present invention, as Figure 5 and Figure 9As shown, knock-out holes 26 are provided on the valve body box 2 (on plastic parts or metal stamping parts, the objects in the holes seem to be about to fall but not fall. Just gently tap the objects in the holes with a screwdriver or other tools, and the through holes will appear). When the outdoor unit 1 of the air conditioner does not have a communication function and a main control board 31 needs to be set, the knock-out holes 26 are drilled through with a hammer or a wrench, and then the first cable connector 37 on the electric control box 3 is inserted into the knock-out holes 26. Then, the electric control box 3 and the valve body box 2 are connected into an integral body through the connecting plate 8. Due to the setting of the knock-out holes 26, the assembly of the electric control box 3 and the valve body box 2 is very convenient.

[0066] Preferably, as Figure 9 shown, in this embodiment, a sealing gasket 4 is further provided between the valve body box 2 and the electric control box 3; a through hole 41 corresponding to the knock-out hole 26 is provided on the sealing gasket 4; the first cable connector 37 passes through the through hole 41 and extends into the valve body box 2. By providing the sealing gasket 4, the electric control box 3 can be better sealed to prevent water from entering the electric control box 3 from the valve body box 2, reducing the risk of the main control board 31 in the electric control box 3 being short-circuited due to contact with water. Optionally, in this embodiment, the sealing gasket 4 is a rubber gasket.

[0067] In this embodiment, as Figure 12 shown, the spray head assembly 7 includes a connecting joint 73, a nozzle 72, and a mounting plate 71. The connecting joint 73 is installed on the mounting plate 71. The connecting joint 73 includes a connecting interface 731 and a spraying interface 732. The connecting interface 731 is communicated with the quick-connect joint 23 through a connecting pipe 25, and the nozzle 72 is communicated with the spraying interface 732. In this embodiment, the nozzle 72, the connecting joint 73, and the mounting plate 71 are integrated to form the spray head assembly 7. Therefore, the installation of the spray head assembly 7 is more convenient, and the installation position can be adjusted flexibly; for example, the spray head assembly 7 can be directly fixed on the box body sheet metal of the outdoor unit 1 of the air conditioner through the mounting plate 71. Optionally, as Figure 12 shown, mounting holes 711 are provided on the mounting plate 71, and the mounting plate 71 is connected to the box body of the outdoor unit 1 of the air conditioner by screws. The screw connection method is more reliable and is convenient for operators to assemble and disassemble. Of course, in this embodiment, the mounting plate 71 can also be connected to the box body of the outdoor unit 1 of the air conditioner by other means, such as being connected and fixed to the chassis of the outdoor unit 1 of the air conditioner by plugging or clamping.

[0068] According to an embodiment of the present invention, as Figure 2As shown, the cooling device further includes a detection component. The main control board 31 is electrically connected to the control valve 21 and the detection component respectively. The detection component is used to detect the outdoor environmental information and the startup information of the outdoor unit 1 of the air conditioner, and transmit them to the main control board 31. The main control board 31 generates a control instruction according to the detected outdoor environmental information and the startup information of the outdoor unit 1 of the air conditioner to control the opening or closing of the control valve 21. In this embodiment, whether to cool the condenser of the outdoor unit 1 of the air conditioner is judged by detecting the outdoor environmental temperature information and whether the outdoor unit 1 of the air conditioner is started. When the outdoor temperature is greater than the preset temperature threshold and the outdoor unit 1 of the air conditioner is running, the controller generates a control instruction to control the solenoid valve to open. At this time, the corresponding water circuit is connected, and the cooling water flowing in through the water inlet pipe 5 enters the nozzle 72 of the nozzle assembly 7 through the water circuit, and sprays water on the condenser through the nozzle 72 to reduce the temperature of the condenser.

[0069] Optionally, the detection component includes an ambient temperature sensor and an exhaust temperature sensor 11. The ambient temperature sensor is used to detect the outdoor ambient temperature T1 where the outdoor unit 1 of the air conditioner is located. Optionally, in this embodiment, the ambient temperature sensor is installed inside the valve body box 2, and the exhaust temperature sensor 11 is installed on the pipe wall of the four-way valve inlet pipe of the outdoor unit 1 of the air conditioner. The exhaust temperature sensor 11 is used to detect the temperature of the inlet pipe of the four-way valve to judge whether the corresponding outdoor unit 1 of the air conditioner is started. The main control board 31 compares the detected outdoor ambient temperature T1 with the preset temperature threshold T2. When T1 is greater than T2 and the corresponding outdoor unit 1 of the air conditioner is in the startup state, the outdoor unit 1 of the air conditioner is in the running state and the condenser of the outdoor unit 1 of the air conditioner needs to be cooled. At this time, the main control board 31 controls the control valve 21 to open, and the corresponding water circuit is connected. The cooling water entering through the water inlet pipe 5 enters the nozzle 72 of the nozzle assembly 7 through the flange joint 22, the filter 24, the control valve 21, the quick connector 23 and the connecting pipe 25, and sprays water on the condenser through the nozzle 72 to cool down the condenser.

[0070] According to an embodiment of the present invention, as Figures 3 to 11 shown, an installation bracket 36 is provided on the electric control box 3 and / or the valve body box 2. The electric control box 3 and the valve body box 2 are connected to the housing of the outdoor unit 1 of the air conditioner through the installation bracket 36. If the installation space of the outdoor unit 1 of the air conditioner is limited, the installation bracket 36 can be fixed on the installation surface outside the outdoor unit 1 of the air conditioner. The installation surface can be a bracket for installing the outdoor unit 1 of the air conditioner or a wall for fixing the outdoor unit 1 of the air conditioner, etc. The installation brackets 36 are provided at both the lower end and the upper end of the valve body box 2. The installation bracket 36 is a flanging structure, and two long strip holes are provided on the installation bracket 36. The installation bracket 36 is connected to the housing or the wall of the outdoor unit 1 of the air conditioner through screws.

[0071] According to an embodiment of the present invention, as Figures 6 to 9 shown, the electric control box 3 is installed on the upper side of the valve body box 2; the first connecting portion 81 of the connecting plate 8 is connected to the outer side wall of the upper end of the valve body box 2 by screws, and the second connecting portion 82 of the connecting plate 8 is welded to the lower end of the electric control box 3. Wherein, a set of connecting plates 8 are provided on both the left and right sides of the electric control box 3 and the valve body box 2, and the valve body box 2 and the electric control box 3 are more reliably connected through the two sets of connecting plates 8. As Figure 5 and Figure 9 shown, a knock-out hole 26 is provided on the upper surface of the valve body box 2. Just knock off the knock-out hole 26 at the top of the valve body box 2, insert the first cable connector 37 of the electric control box 3 into the valve body box 2, and fix it on both sides through the connecting plate 8 to complete the assembly. The combined installation can make the device structure more compact and reduce the installation space.

[0072] According to another embodiment of the present invention, as Figure 11 shown, the valve body box 2 and the electric control box 3 are arranged side by side left and right. The first connecting portion 81 of the connecting plate 8 is connected to the top cover of the valve body box 2 by screws, and the second connecting portion 82 of the connecting plate 8 is welded to the top cover of the electric control box 3; wherein, a set of connecting plates 8 are provided on both the upper and lower sides of the electric control box 3 and the valve body box 2, and the valve body box 2 and the electric control box 3 are more reliably connected through the two sets of connecting plates 8.

[0073] According to still another embodiment of the present invention, as Figure 10 shown, the electric control box 3 and the valve body box 2 are arranged side by side front and back and are detachably connected through the connecting plate 8; in this embodiment, the connecting plate 8 includes a first plate body and a second plate body. The first plate body is fixedly connected to the valve body box 2, the second plate body is detachably connected to the electric control box 3, mounting through holes are correspondingly provided on the first plate body and the second plate body, the first plate body and the second plate body are mutually attached, and are connected by screws.

[0074] Another embodiment of the present invention also provides an outdoor unit 1 of an air conditioner. As Figure 1 and Figure 2 shown, this embodiment provides an outdoor unit 1 of an air conditioner, which includes a compressor, a low-pressure tank, an oil separator, a four-way valve, a condenser and a throttling element, and further includes the cooling device described in any of the above embodiments. Wherein, the control system of the outdoor unit 1 of the air conditioner has a communication function, so the cooling device only includes the valve body box 2.

[0075] Another embodiment of the present invention also provides an outdoor unit 1 of an air conditioner. The control system of the outdoor unit 1 of the air conditioner does not have a communication function, so the cooling device includes a valve body box 2 and an electric control box 3 that are integrated through a connection assembly.

[0076] Since the outdoor unit 1 of the air conditioner provided in this embodiment has a valve body box 2 with a connection component in its cooling device, the cooling solution of the outdoor unit 1 of the air conditioner that can simultaneously meet the communication and non-communication solutions can be achieved by one cooling device, and the installation is more flexible and convenient.

[0077] Another embodiment of the present invention also provides an air conditioning system, which includes an indoor unit of the air conditioner and the outdoor unit 1 of the air conditioner provided in the above embodiment. The indoor unit of the air conditioner includes structures such as an evaporator and a blower.

[0078] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0079] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0080] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling device for an outdoor unit of an air conditioner, characterized in that, it includes: a valve body box (2), a control valve (21), a water inlet pipe (5) and a spray head assembly (7); a connection assembly for connecting to a main control board (31) is provided on the valve body box (2); the control valve (21) is arranged inside the valve body box (2), the water inlet pipe (5) is communicated with the spray head assembly (7) to form a cooling passage, the main control board (31) is communicatively connected to the control valve (21) for controlling the opening or closing of the control valve (21), and the control valve (21) is arranged on the cooling passage for connecting or disconnecting the cooling passage; the cooling device further includes an electric control box (3), the valve body box (2) is detachably connected to the electric control box (3) through the connection assembly, and the main control board (31) is installed inside the electric control box (3).

2. The cooling device according to claim 1, characterized in that, the connection assembly includes a connecting plate (8), and the electric control box (3) and the valve body box (2) are connected through the connecting plate (8).

3. The cooling device according to claim 2, characterized in that, the connecting plate (8) includes a first connecting portion (81) and a second connecting portion (82), the first connecting portion (81) is detachably connected to the valve body box (2), and the second connecting portion (82) is fixedly connected to the electric control box (3).

4. The cooling device according to claim 3, characterized in that, the electric control box (3) is installed on the upper side of the valve body box (2); a first through hole (811) is provided on the first connecting portion (81), and a second through hole (29) is provided on the valve body box (2); the valve body box (2) and the first connecting portion (81) are connected by screws, and the second connecting portion (82) is welded to the electric control box (3).

5. The cooling device according to claim 4, characterized in that, the valve body box (2) and the electric control box (3) are arranged side by side left and right; a first through hole (811) is provided on the first connecting portion (81), and a second through hole (29) is provided on the valve body box (2); the valve body box (2) and the first connecting portion (81) are connected by screws, and the second connecting portion (82) is welded to the electric control box (3).

6. The cooling device according to claim 3, characterized in that, the electric control box (3) and the valve body box (2) are arranged side by side front and back; the connecting plate (8) includes a first plate body and a second plate body, the first plate body is fixedly connected to the valve body box (2), and the second plate body is detachably connected to the electric control box (3); mounting through holes are correspondingly provided on the first plate body and the second plate body, and the first plate body and the second plate body are connected by screws.

7. The cooling device according to any one of claims 1 to 6, characterized in that, a knockout hole (26) is provided on the valve body box (2), a first cable connector (37) is connected to the electric control box (3), and the first cable connector (37) passes through the knockout hole (26) and extends into the valve body box (2).

8. The cooling device according to claim 7, It is characterized in that a gasket (4) is further provided between the valve body box (2) and the electric control box (3); a through hole (41) corresponding to the knockout hole (26) is provided on the gasket (4); the first cable connector (37) passes through the through hole (41) and extends into the valve body box (2).

9. The cooling device according to any one of claims 1 to 6, It is characterized in that the cooling device further includes a filter (24), and the water inlet pipe (5) is communicated with the spray head assembly (7) through the filter (24).

10. The cooling device according to claim 9, It is characterized in that the cooling device further includes a flange joint (22) and a connecting pipe (25); the water inlet pipe (5) is communicated with the water inlet end of the filter (24) through the flange joint (22), the water outlet end of the filter (24) is communicated with the water inlet end of the control valve (21) through the connecting pipe (25), and the water outlet end of the control valve (21) is communicated with the water inlet end of the spray head assembly (7).

11. The cooling device according to claim 1, It is characterized in that a connecting joint is further provided on the valve body box (2), and the control valve (21) is communicated with the spray head assembly (7) through the connecting joint.

12. The cooling device according to claim 2, It is characterized in that the cooling device further includes a first fixing plate (28), the first fixing plate (28) is connected to the inner wall of the valve body box (2), and the control valve (21) is fixedly installed in the valve body box (2) through the first fixing plate (28).

13. The cooling device according to claim 2, It is characterized in that the cooling device further includes a second fixing plate (32), the second fixing plate (32) is connected to the inner wall of the electric control box (3), and the main control board (31) is connected to the second fixing plate (32).

14. The cooling device according to claim 13, It is characterized in that the cooling device further includes a spacer post (33), and the main control board (31) is connected to the second fixing plate (32) through the spacer post (33).

15. The cooling device according to claim 2, It is characterized in that mounting brackets (36) are provided on the electric control box (3) and / or the valve body box (2), and the electric control box (3) and the valve body box (2) are connected to the housing of the outdoor unit (1) of the air conditioner through the mounting brackets (36), or are connected to the mounting surface outside the outdoor unit (1) of the air conditioner.

16. An outdoor unit of an air conditioner, including a condenser, It is characterized in that it further includes the cooling device according to any one of claims 1 to 15, and the spray head assembly (7) of the cooling device faces the condenser.

17. An air conditioning system, including an indoor unit of an air conditioner, It is characterized in that it further includes the outdoor unit of the air conditioner according to claim 16.

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