Energy-saving water-cooled heat dissipating device for air conditioner outdoor unit

Abstract

The application relates to the technical field of energy-saving air conditioners, and particularly discloses an energy-saving water cooling heat dissipation device for an air conditioner outdoor unit, which comprises a rack, an outdoor unit body arranged on the rack, a drain pipe and a heat exchanger, a water storage tank communicated with the drain pipe is arranged below the outdoor unit body, a water pump is arranged in the water storage tank, a cooling pipe is communicated with a water outlet of the water pump, a plurality of water-permeable holes opposite to the heat exchanger are formed in the cooling pipe, and the rack is further provided with a control assembly for controlling the pumping state of the water pump and a steam recovery assembly for recovering water vapor evaporated from the heat exchanger. The steam recovery assembly comprises a condensation box arranged above the outdoor unit body of the rack, a phase change layer placed in the condensation box and a return pipe arranged at the lowest position of the condensation box, and the return pipe is communicated with the water storage tank. The application has the effects of improving the heat dissipation efficiency of the heat exchanger when the ambient temperature is relatively high and reducing the power consumption.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of energy-saving air conditioners, in particular to an energy-saving water cooling heat dissipation device for an air conditioner outdoor unit. BACKGROUND

[0002] The air conditioner outdoor unit, namely the outdoor unit, is an important component of an air conditioning system, and mainly functions to dissipate heat and circulate refrigerants. The air conditioner outdoor unit comprises key components such as a compressor, a fan, a heat exchanger, a four-way valve and a drain pipe, and these components work cooperatively to ensure the normal operation of the air conditioning system.

[0003] In air conditioning refrigeration, the air conditioner outdoor unit is a core heat dissipation component of the air conditioning system, and mainly functions to discharge indoor heat to the outdoor through the circulation of compressed refrigerants, so as to ensure the refrigeration / heating efficiency. In this process, the air conditioner indoor unit generates condensate water, which is transported to the drain system of the air conditioner outdoor unit and discharged by the drain pipe.

[0004] According to the related technology in the above, the inventors believe that the following defects exist: when the ambient temperature is high, especially when the ambient temperature exceeds 35 DEG C, the heat dissipation efficiency decreases, the heat exchanger only relies on the fan to dissipate heat to the high-temperature air, the heat dissipation effect is poor, the temperature of the heat exchanger is significantly increased, and in this process, in order to obtain a better indoor cooling effect, the operating power of the compressor, the fan and the like is usually increased, but if the high-power operation lasts for a long time and the ambient temperature is also high, the air conditioner is also prone to overheating and the like, and the power consumption is also high. SUMMARY

[0005] In order to improve the problem that the heat dissipation effect of the heat exchanger is poor when the ambient temperature is high, the application provides an energy-saving water cooling heat dissipation device for an air conditioner outdoor unit.

[0006] The energy-saving water cooling heat dissipation device for an air conditioner outdoor unit provided by the application adopts the following technical scheme:

[0007] An energy-saving water cooling heat dissipation device for an air conditioner outdoor unit comprises a rack, an outdoor unit body arranged on the rack, and the outdoor unit body comprises a drain pipe and a heat exchanger, characterized in that: a water storage tank in communication with the drain pipe is arranged below the rack and the outdoor unit body, a water pump is arranged in the water storage tank, a cooling pipe is in communication with the water outlet of the water pump, a plurality of water-permeable holes facing the heat exchanger are formed in the cooling pipe, and the rack is further provided with:

[0008] A control assembly for controlling the water pumping state of the water pump;

[0009] A steam recovery assembly is arranged above the outer machine body for recovering water vapor evaporated from the heat exchanger, the steam recovery assembly comprises a condensing box arranged above the machine frame, a phase change layer arranged in the condensing box and a backflow pipe arranged at the lowest part of the condensing box, the backflow pipe is connected with the water storage tank.

[0010] By using the above technical scheme, the condensed water discharged from the drain pipe flows into the water storage tank for storage. When the temperature of the heat exchanger is high, the control assembly controls the water pump to operate to pump the water in the water storage tank into the cooling pipe. At this time, the water in the cooling pipe is sprayed out from the water permeable hole. The heat exchanger is in heat exchange with the cooling pipe and is cooled by the water sprayed from the cooling pipe, thereby improving the heat dissipation capacity of the heat exchanger. Since the heat exchanger is water-cooled for auxiliary heat dissipation, the temperature of the heat exchanger is usually 50-60℃. Since the diameter of the water permeable hole is small, the cooling water sprayed on the surface of the heat exchanger is partially returned to the water storage tank below the outer machine body, and a part of the cooling water is recovered in the form of water vapor through the steam recovery assembly. That is, the water vapor is heat-exchanged after meeting the condensing box, the water vapor is condensed into water droplets, the phase change layer in the condensing box is phase-changed and stores the absorbed heat, and the water droplets are collected into the water storage tank through the backflow pipe to reduce the waste of water resources and the frequency of water maintenance by the staff.

[0011] Optionally, the water storage tank comprises a condensed water tank and a backwater tank, the inner wall of the condensed water tank is made of heat preservation material, and the water pump is connected with a condensed water pump and a backwater pump. When the water level in the condensed water tank is high, the control assembly controls the water pump to pump the water in the condensed water tank.

[0012] By using the above technical scheme, since the temperature of the condensed water discharged from the drain pipe is lower than that of the environmental surface water, the temperature in the condensed water tank with heat preservation effect is relatively low, and the backwater tank is heat-exchanged with air to have normal environmental water temperature. When the water level in the condensed water tank is high, the control assembly controls the water pump to preferentially pump the water in the condensed water tank for heat exchange with the heat exchanger. When the water level in the condensed water tank is low, the water pump pumps the water in the backwater tank, thereby utilizing the residual heat of the condensed water.

[0013] Optionally, the control assembly comprises a floating ball valve, a controller connected with a power supply, a passive valve plate arranged on the backwater pump and a control rope connected with the passive valve plate. The controller is electrically connected with the water pump and a temperature module of the outer machine body. The condensed water pump and the backwater pump are both provided with the floating ball valve. The control rope is also connected with the floating ball valve in the condensed water tank. When the water level in the condensed water tank is high, the control rope pulls the passive valve plate to close.

[0014] and when the heat exchanger temperature is higher and the water quantity in the water storage tank is more, the water pump operates; when the heat exchanger temperature is lower or the water quantity in the water storage tank is less, the water pump stops operating; when the heat exchanger temperature is moderate but the water quantity in the water storage tank is more, the water pump operates.

[0015] By adopting the above technical scheme, the float ball valve is opened with the rising of the water level, when the water level in the condensate tank is higher, the float ball valve in the condensate tank is opened, and the passive valve plate in the return tank is closed by the control rope, when the temperature in the outdoor unit is higher, the controller controls the water pump to operate, at this time, the water pump extracts the water in the condensate tank, until the water level in the condensate tank is lower, the float ball valve in the condensate tank is closed, the passive valve plate is opened, and the float ball valve in the return tank is opened, the water pump extracts the water in the return tank.

[0016] Optionally, the float ball valve comprises a valve body, a connecting rod for controlling the opening and closing of the valve body, and a first float ball arranged on the connecting rod.

[0017] The control assembly further comprises a fixed magnet, a movable magnet, a second float ball and a connecting rope, the fixed magnet is fixedly connected to the inner bottom wall of the condensate tank, the movable magnet is fixedly connected to the bottom of the first float ball in the condensate tank, the second float ball is placed in the condensate tank and connected to the first float ball in the condensate tank through the connecting rope, and when the fixed magnet and the movable magnet are attached to each other, the attraction between the fixed magnet and the movable magnet is greater than the buoyancy of the first float ball and less than the buoyancy of the first float ball plus the second float ball.

[0018] By adopting the above technical scheme, when the water level in the condensate tank is lower, the first float ball and the second float ball in the condensate tank are at a lower position, at this time, the fixed magnet and the movable magnet are attached to each other, and the condensate water pump is closed, when the water level continues to rise, the second float ball also rises, but the first float ball is static due to the action of the fixed magnet and the movable magnet, that is, at this time, the condensate water pump is still closed, until the second float ball rises to a distance between the first float ball greater than the maximum length of the connecting rope, the combined buoyancy of the second float ball and the first float ball causes the movable magnet to be separated from the attraction of the fixed magnet, at this time, the first float ball continues to rise to the horizontal position, that is, the valve body at the condensate water pump is opened; when the water level in the condensate tank continues to drop, the first float ball and the second float ball also continue to drop, until the movable magnet is attached to the fixed magnet, thereby avoiding the difficulty of storing water in the condensate tank, and also ensuring the continuity of the water pump suction, and if the water pump frequently mixes and extracts the water in the condensate tank and the return tank, it is also easy to affect the temperature of the water extracted from the condensate tank.

[0019] Optionally, the valve body is provided with a piezoelectric ceramic electrically connected with the controller, the connecting rod is fixedly connected with a pressing rod, and when the floating ball touches the bottom, the pressing rod abuts against the piezoelectric ceramic, and the piezoelectric ceramic is electrically connected with the water pump.

[0020] By adopting the above technical scheme, the piezoelectric ceramic generates a positive voltage when being pressed and generates a negative voltage when being released, the pressing rod presses the piezoelectric ceramic when the first floating ball is low, at this time, the piezoelectric ceramic sends an electric signal to the controller, when the piezoelectric ceramics in the condensate tank and the return tank both generate a positive voltage, that is, the water in the water storage tank is less, and the water pump stops working, when one of the piezoelectric ceramics generates a positive voltage and then generates a negative voltage, it indicates that the water in the container corresponding to the piezoelectric ceramic increases, and the piezoelectric ceramic is cheap, and this signal feedback mode does not need external power supply and is more energy-saving.

[0021] Optionally, the condensing box is inclined, the bottom wall of the condensing box is inwardly bent with a plurality of flow guide grooves, the groove direction of the flow guide grooves is the same as the inclination direction of the condensing box, the lowest part of the condensing box extends downward with a sag part, and the condensing box is further provided with a heat-conducting net.

[0022] By adopting the above technical scheme, the flow guide grooves increase the contact area with water vapor, thereby improving the heat exchange efficiency of the water vapor, and the flow guide grooves are also more convenient for collecting small water droplets into small water droplets and conveying them to the sag part of the condensing box and into the return pipe; the heat-conducting net in the condensing box is also convenient for heat exchange of the phase change layer.

[0023] Optionally, the condensing box is provided, on the side away from the outer machine body, with a thermoelectric power generation sheet electrically connected with the controller.

[0024] By adopting the above technical scheme, during the day, especially at noon, the environmental temperature is high, at this time, the condensing box receives a large amount of high-temperature steam for heat exchange, the phase change layer absorbs heat by phase change, the temperature of the side of the condensing box in contact with the water vapor is higher than that of the opposite side, and the thermoelectric power generation sheet generates electricity; at night, the environmental temperature is low, at this time, the phase change layer exchanges heat with the low temperature environment, the temperature of the side of the thermoelectric power generation sheet in contact with the condensing box is higher than that of the opposite side, and the thermoelectric power generation sheet continues to generate electricity, so as to fully utilize the heat generated by the heat exchanger, and the thermoelectric power generation sheet is low in cost.

[0025] Optionally, the top of the water storage tank is provided with a filter plate, and the filter plate is sequentially provided with a sound insulation layer, a filter layer and a flow guide layer from top to bottom.

[0026] By adopting the above technical scheme, the sound insulation layer avoids reducing the noise of water drops when the outer body and various pipelines appear to drip water, the filter layer filters the water entering the water storage tank, the flow guide layer makes the filtered water flow down along the inner wall of the water storage tank to reduce the noise of water entering the water tank, and the filter plate also reduces the area of direct contact between the water surface and the air, thereby reducing the natural evaporation amount of the water and further reducing the waste of water.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. After the water in the water storage tank is pumped into the cooling pipe, the water in the cooling pipe is sprayed out from the water-permeable hole, the heat exchanger not only exchanges heat with the cooling pipe, but also is cooled by the water sprayed from the cooling pipe, thereby improving the heat dissipation capacity of the heat exchanger; and since the diameter of the water-permeable hole is small, the cooling water sprayed on the surface of the heat exchanger not only flows back to the water storage tank below the outer body, but also is recovered in the form of water vapor through the vapor recovery assembly, i.e., the water vapor exchanges heat after encountering the condensing box, the water vapor forms water droplets when it is cooled, the phase change layer in the condensing box is phase-changed when heated and stores the absorbed heat, and when the temperature is lower at night, the phase change layer releases the stored heat and further phase-changes to the initial state, and the water droplets flow back into the water storage tank through the backflow pipe, thereby reducing the waste of water resources and the frequency of water maintenance by the staff;

[0029] 2. Since the temperature of the condensed water discharged from the drain pipe is lower than that of the surface water in the environment, the temperature of the condensed water stored in the condensed water tank with heat preservation effect is relatively low, and the temperature of the water in the backwater tank is normal after heat exchange with the air; when the water level in the condensed water tank is high, the control assembly controls the water pump to preferentially pump the water in the condensed water tank to exchange heat with the heat exchanger; when the water level in the condensed water tank is low, the water pump pumps the water in the backwater tank, thereby utilizing the residual heat of the condensed water. And since the phase change layer absorbs heat during the day and releases heat at night, the temperature difference power generation sheet can utilize the temperature difference between the condensing box and the environment to generate electricity during the day and at night, i.e., the device fully utilizes the residual heat of the condensed water and the heat generated by the outer body.

[0030] 3. When the piezoelectric ceramic is squeezed, it generates a positive voltage, and when the squeezing is released, it generates a negative voltage; when the first floating ball is low, the pressure rod presses the piezoelectric ceramic, and at this time the piezoelectric ceramic sends an electrical signal to the controller; when the piezoelectric ceramics in the condensed water tank and the backwater tank both generate a positive voltage, it means that the water in the water storage tank is less, and the water pump stops working; when one of the piezoelectric ceramics generates a positive voltage and then a negative voltage, it means that the water in the container corresponding to the piezoelectric ceramic increases, and the piezoelectric ceramic is cheap, this signal feedback method does not need external power supply and is more energy-saving. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1is a whole structure schematic diagram of the embodiment of the application;

[0032] Figure 2 is a structure schematic diagram along Figure 1 the A-A line in the embodiment of the application;

[0033] Figure 3 is a structure schematic diagram mainly used for showing the inside of the water return tank in the embodiment of the application;

[0034] Figure 4 is a structure schematic diagram mainly used for showing the steam recovery assembly in the embodiment of the application.

[0035] Reference signs: 1, rack; 11, outer machine body; 111, drain pipe; 112, heat exchanger; 21, water storage tank; 211, condensate tank; 212, water return tank; 213, water outlet pipe; 214, overflow pipe; 22, water pump; 221, condensate suction pipe; 222, water return suction pipe; 23, cooling pipe; 31, float ball valve; 311, valve body; 312, connecting rod; 313, first float ball; 32, controller; 33, passive valve plate; 34, control rope; 35, fixed magnet; 36, movable magnet; 37, second float ball; 38, connecting rope; 4, steam recovery assembly; 41, condensation box; 411, flow guide groove; 412, heat conduction net; 42, phase change layer; 43, return pipe; 51, piezoelectric ceramic; 52, pressing rod; 6, thermoelectric power sheet; 7, filter plate; 71, soundproof layer; 72, filter layer; 73, flow guide layer. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying Figures 1-4 The application is further explained.

[0037] The embodiment of the application discloses an energy-saving water cooling heat dissipation device for an air conditioner outer machine. Figures 1-4 The energy-saving water cooling heat dissipation device for the air conditioner outer machine comprises a rack 1, an outer machine body 11 arranged on the rack 1, the outer machine body 11 comprising a drain pipe 111 and a heat exchanger 112, a water storage tank 21 arranged below the outer machine body 11 and communicated with the drain pipe 111, a water pump 22 arranged in the water storage tank 21, a cooling pipe 23 communicated with a water outlet of the water pump 22, a plurality of water-permeable holes opposite to the heat exchanger 112 are formed in the cooling pipe 23, the water-permeable holes are 0.5mm atomizing holes, and the rack 1 is further provided with a control assembly for controlling the water pumping state of the water pump 22.

[0038] The steam recovery assembly 4 is used for recovering the water vapor evaporated from the heat exchanger 112, and the steam recovery assembly 4 includes a condensing box 41 arranged above the outer machine body 11 of the rack 1, a phase change layer 42 placed in the condensing box 41, and a backflow pipe 43 arranged at the lowest part of the condensing box 41 and connected with the water storage tank 21. The phase change layer 42 can be a paraffin mixture layer, a fatty acid layer, etc. In this application, the phase change layer 42 is a paraffin mixture layer, and the phase change point is adjusted to 40-60℃ by mixing alkanes with different carbon chain lengths. The specific temperature is adjusted according to the local environment. In addition, a heat insulation and noise reduction plate can be additionally arranged on the side close to the wall to reduce the noise and heat emitted by the outer machine body 11 into the room.

[0039] The condensed water discharged from the drain pipe 111 flows into the water storage tank 21 for storage. When the temperature of the heat exchanger 112 is relatively high, the control assembly controls the water pump 22 to operate to pump the water in the water storage tank 21 into the cooling pipe 23. At this time, the water in the cooling pipe 23 is sprayed out from the water permeable hole. The heat exchanger 112 is subjected to heat exchange with the cooling pipe 23 and is cooled by the water sprayed out of the cooling pipe 23, thereby improving the heat dissipation capacity of the heat exchanger 112. Since the heat exchanger 112 is subjected to water cooling auxiliary heat dissipation, the temperature of the heat exchanger 112 is usually 50-60℃. Since the diameter of the water permeable hole is small, the cooling water sprayed on the surface of the heat exchanger 112 is partially returned to the water storage tank 21 below the outer machine body 11, and the other part is recovered in the form of water vapor through the steam recovery assembly 4. That is, the water vapor is subjected to heat exchange after meeting the condensing box 41, the water vapor is formed into water droplets by cooling, the phase change layer 42 in the condensing box 41 is subjected to phase change by heat and stores the absorbed heat, and the water droplets are returned to the water storage tank 21 through the backflow pipe 43 when the temperature is relatively low at night, thereby reducing the waste of water resources and the frequency of water maintenance by workers.

[0040] Referring to Figure 1 and Figure 2 The water storage tank 21 includes a condensed water tank 211 and a backwater tank 212. The inner wall of the condensed water tank 211 can be a cheap and heat-insulating foam board heat preservation material. The water pump 22 is connected with a condensed water pumping pipe 221 and a backwater pumping pipe 222 at the water pumping port. When the water level in the condensed water tank 211 is relatively high, the control assembly controls the water pump 22 to pump the water in the condensed water tank 211.

[0041] Since the temperature of the condensed water discharged from the drain pipe 111 is lower than the temperature of the ambient surface water, the temperature in the condensed water tank 211 with heat preservation effect is relatively low, and the return water tank 212 exchanges heat with air to be normal ambient water temperature. When the water level in the condensed water tank 211 is high, the control assembly controls the water pump 22 to preferentially extract water in the condensed water tank 211 for heat exchange of the heat exchanger 112; when the water level in the condensed water tank 211 is low, the water pump 22 extracts water in the return water tank 212, and then utilizes the residual heat of the condensed water.

[0042] With reference to Figure 2 and Figure 3 , the control assembly includes a float ball valve 31, a controller 32 connected with a power supply, a passive valve plate 33 plugged on the return water suction pipe 222, and a control rope 34 connected with the passive valve plate 33. The controller 32 is electrically connected with the water pump 22 and a temperature module of the outdoor unit 11, and can be electrically connected with an ambient temperature sensor of the outdoor unit 11 or a temperature sensor at the outlet of the compressor. The condensed water suction pipe 221 and the return water suction pipe 222 are both provided with the float ball valve 31, and the control rope 34 is further connected with the float ball valve 31 in the condensed water tank 211. When the water level in the condensed water tank 211 is high, the control rope 34 pulls the passive valve plate 33 to close. When the heat exchanger 112 has a high temperature and the water storage tank 21 has a large amount of water, the water pump 22 operates. When the heat exchanger 112 has a low temperature or the water storage tank 21 has a small amount of water, the water pump 22 stops operating. When the heat exchanger 112 has a moderate temperature but the water storage tank 21 has a large amount of water, the water pump 22 operates.

[0043] The float ball valve 31 opens with the rising of the water level. When the water level in the condensed water tank 211 is high, the float ball valve 31 in the condensed water tank 211 opens, and the passive valve plate 33 in the return water tank 212 is closed by the control rope 34. When the temperature in the outdoor unit 11 is high, the controller 32 controls the water pump 22 to operate. At this time, the water pump 22 extracts water in the condensed water tank 211, until the water level in the condensed water tank 211 is low, the float ball valve 31 in the condensed water tank 211 closes, the passive valve plate 33 opens, and the float ball valve 31 in the return water tank 212 opens. The water pump 22 extracts water in the return water tank 212. In the present application, the return water tank 212 is further connected with a water outlet pipe 213 with a valve and an overflow pipe 214 with a float ball valve 31. The water outlet pipe 213 facilitates the drainage operation during later maintenance, and the overflow pipe 214 avoids the water in the return water tank 212 from entering the condensed water tank 211 when the water is too much.

[0044] With reference to Figure 2The float ball valve 31 comprises a valve body 311, a connecting rod 312 for controlling the opening and closing of the valve body 311, and a first float ball 313 arranged on the connecting rod 312. The control assembly further comprises a fixed magnet 35, a movable magnet 36, a second float ball 37, and a connecting rope 38. The fixed magnet 35 is fixedly connected to the inner bottom wall of the condensate water tank 211. The movable magnet 36 is fixedly connected to the bottom of the first float ball 313 in the condensate water tank 211. The second float ball 37 is arranged in the condensate water tank 211 and is connected to the first float ball 313 in the condensate water tank 211 through the connecting rope 38. When the water level in the condensate water tank 211 is high, the connecting rope 38 is not taut. When the water level in the condensate water tank 211 is low, the connecting rope 38 is taut. When the fixed magnet 35 and the movable magnet 36 adhere to each other, the attractive force between the fixed magnet 35 and the movable magnet 36 is greater than the buoyancy of the first float ball 313 and less than the buoyancy of the first float ball 313 plus the second float ball 37, that is, the fixed magnet 35 and the movable magnet 36 need to be separated by the combined buoyancy of the first float ball 313 and the second float ball 37.

[0045] When the water level in the condensate water tank 211 is low, the first float ball 313 and the second float ball 37 in the condensate water tank 211 are both at a low position. At this time, the fixed magnet 35 and the movable magnet 36 adhere to each other, and the condensate water pump 221 is closed. When the water level continues to rise, the second float ball 37 also rises, but the first float ball 313 is stationary due to the action of the fixed magnet 35 and the movable magnet 36, that is, the condensate water pump 221 is still closed. When the second float ball 37 rises to a distance from the first float ball 313 greater than the maximum length of the connecting rope 38, the combined buoyancy of the second float ball 37 and the first float ball 313 causes the movable magnet 36 to be separated from the attraction of the fixed magnet 35. At this time, the first float ball 313 continues to rise to the horizontal position, that is, the valve body 311 at the condensate water pump 221 is opened. When the water level in the condensate water tank 211 continues to decrease, the first float ball 313 and the second float ball 37 also continue to decrease, until the movable magnet 36 adheres to the fixed magnet 35, thereby preventing the condensate water tank 211 from being difficult to store water, and also ensuring the continuity of the water pump 22. If the water pump 22 frequently mixes and extracts water from the condensate water tank 211 and the return water tank 212, it will also affect the temperature of the water extracted from the condensate water tank 211.

[0046] Referring to Figure 3 The valve body 311 is provided with a piezoelectric ceramic 51 electrically connected to the controller 32. The connecting rod 312 is fixedly connected with a pressure rod 52. When the float ball touches the bottom, the pressure rod 52 abuts against the piezoelectric ceramic 51. The piezoelectric ceramic 51 is electrically connected to the water pump 22.

[0047] When the piezoelectric ceramic 51 is pressed, it generates a positive voltage, and when the piezoelectric ceramic 51 is released, it generates a negative voltage. When the first floating ball 313 is at a low height, the pressure rod 52 presses the piezoelectric ceramic 51, and at this time, the piezoelectric ceramic 51 sends an electrical signal to the controller 32. When the piezoelectric ceramic 51 in the condensate tank 211 and the return water tank 212 generates a positive voltage, it means that the water level in the water storage tank 21 is low, and the water pump 22 stops working. When one of the piezoelectric ceramics 51 generates a positive voltage and then a negative voltage, it means that the water level in the corresponding container increases. The piezoelectric ceramic 51 is inexpensive, and this signal feedback method does not require an external power supply and is more energy-efficient.

[0048] In other possible implementations, the control assembly can also be a plurality of liquid level gauges arranged on the inner wall of the water storage tank 21. The liquid level gauges are electrically connected to the controller 32. Compared with the floating ball valve 31 and other structures of the present application, the liquid level gauges are more compact, but have higher costs, lower adaptability to harsh working conditions, and require additional power consumption. The specific selection can be made according to the actual budget and environment.

[0049] Referring to Figure 2 and Figure 4 , the condensing box 41 is inclined, and the bottom wall of the condensing box 41 is bent inward with a plurality of flow guide grooves 411. The groove direction of the flow guide grooves 411 is the same as the inclination direction of the condensing box 41. The lowest part of the condensing box 41 extends downward with a sagging part. The condensing box 41 is also provided with a heat-conducting mesh 412. In the present application, the air outlet of the outdoor unit 11 is additionally provided with a louver, and the louver is inclined upward. The low quality of high-temperature steam and the orientation of the louver both make the steam move obliquely upward, so as to facilitate the contact between the steam and the higher part of the condensing box 41. The flow guide grooves 411 increase the contact area with the water vapor, thereby improving the heat exchange efficiency of the water vapor. The flow guide grooves 411 also facilitate the collection of fine water droplets into small droplets and the transportation of the small droplets to the sagging part of the condensing box 41 and then to the return pipe 43. The heat-conducting mesh 412 in the condensing box 41 also facilitates the heat exchange of the phase change layer 42.

[0050] Referring to Figure 2 and Figure 4 , the condensing box 41 is provided with a thermoelectric power generation sheet 6 on the side away from the outdoor unit 11, which is electrically connected to the controller 32. During the day, especially at noon, the environmental temperature is high. At this time, the condensing box 41 receives a large amount of high-temperature steam for heat exchange, and the phase change layer 42 absorbs heat by phase change. The temperature of the side of the condensing box 41 in contact with the water vapor is higher than that of the opposite side, and the thermoelectric power generation sheet 6 generates electricity. At night, the environmental temperature is low. At this time, the phase change layer 42 exchanges heat with the low temperature environment, and the temperature of the side of the thermoelectric power generation sheet 6 in contact with the condensing box 41 is higher than that of the opposite side. The thermoelectric power generation sheet 6 continues to generate electricity to fully utilize the heat generated by the heat exchanger 112. The thermoelectric power generation sheet 6 has a low cost.

[0051] Referring to Figure 2The top of the water storage tank 21 is obliquely provided with a filter plate 7, which is sequentially provided with a soundproof layer 71, a filter layer 72 and a flow guide layer 73 from top to bottom. The filter plate 7 can be obliquely inclined to one side, and a gap for water seepage is left between the lowest part of the filter plate 7 and the inner wall of the water storage tank 21, so as to facilitate the water on the filter plate 7 to flow down along the tank body of the water storage tank 21 and reduce the water drop sound when the water enters the water storage tank 21. The filter plate 7 can also be obliquely inclined to the middle part and is communicated with a flow guide pipe at the lowest part, so that the water on the filter plate flows into the water storage tank from the flow guide pipe, which also effectively reduces the water drop sound. The soundproof layer 71 can be soundproof cotton, cotton cloth or the like, the filter layer 72 can be activated carbon particles or a filter screen, and the flow guide layer 73 can be a plastic plate, a metal plate or the like. In the present application, the filter plate 7 is recessed to the middle part, the soundproof layer 71 is soundproof cotton, the filter layer 72 is activated carbon particles, and the flow guide layer is a plastic plate. The soundproof layer 71 reduces the water drop noise when the outer body 11 and various pipelines appear water dripping and the like, the filter layer 72 filters the water entering the water storage tank 21, the flow guide layer 73 makes the filtered water flow down from the flow guide pipe and reduces the noise when the water enters the water tank, and the filter plate 7 also reduces the area of the water surface directly contacting with air, thereby reducing the natural evaporation amount of the water, further reducing the waste of water, and meanwhile, preventing foreign matters such as dust from the outside from entering the water storage tank 21.

[0052] The implementation principle of the energy-saving water cooling heat dissipation device for the air conditioner outdoor unit in the embodiment of the present application is as follows: the condensed water discharged from the drain pipe 111 flows into the water storage tank 21 for storage. When the temperature of the heat exchanger 112 is relatively high, the controller 32 controls the water pump 22 to operate. If the water level in the condensed water tank 211 is relatively high, the float ball valve 31 located in the condensed water tank 211 is in an open state, and the passive valve plate 33 in the return water tank 212 is closed by the control rope 34. At this time, the water pump 22 extracts the water in the condensed water tank 211. If the water level in the condensed water tank 211 is relatively low and the water level in the return water tank 212 is relatively high, the float ball valve 31 in the condensed water tank 211 is in a closed state, the valve plate is opened by the control rope 34, and the float ball valve 31 in the return water tank 212 is in an open state. At this time, the water pump 22 extracts the water in the return water tank 212.

[0053] After the water in the water storage tank 21 is pumped into the cooling pipe 23, the water in the cooling pipe 23 is sprayed out through the water-permeable holes, the heat exchanger 112 is subjected to heat exchange with the cooling pipe 23 and cooling by the water sprayed out of the cooling pipe 23, thereby improving the heat dissipation capacity of the heat exchanger 112; since the diameter of the water-permeable holes is small, the cooling water sprayed on the surface of the heat exchanger 112 is partly returned to the water storage tank 21 below the outer body 11 and partly recovered in the form of water vapor through the vapor recovery assembly 4, i.e. the water vapor is subjected to heat exchange after entering the condensing box 41, the water vapor is condensed into water droplets, the phase-change layer 42 in the condensing box 41 is subjected to phase change and stores the absorbed heat, and when the temperature is low at night, the phase-change layer 42 releases the stored heat and is further changed into the initial state, and the water droplets are returned to the water storage tank 21 through the return pipe 43, so as to reduce the waste of water resources and the frequency of water maintenance by the staff.

[0054] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit, comprising a frame (1) and an outdoor unit body (11) mounted on the frame (1), wherein the outdoor unit body (11) includes a drain pipe (111) and a heat exchanger (112), characterized in that: The frame (1) has a water storage tank (21) connected to the drain pipe (111) below the outer body (11). A water pump (22) is installed in the water storage tank (21). A cooling pipe (23) is connected to the outlet of the water pump (22). The cooling pipe (23) has multiple water permeable holes facing the heat exchanger (112). The frame (1) is also equipped with: A control component for controlling the pumping state of the water pump (22); A steam recovery assembly (4) is used to recover water vapor evaporated from the heat exchanger (112). The steam recovery assembly (4) includes a condenser box (41) disposed on the frame (1) above the outer body (11), a phase change layer (42) placed in the condenser box (41), and a return pipe (43) disposed at the lowest point of the condenser box (41). The return pipe (43) is connected to the water storage tank (21).

2. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 1, characterized in that: The water storage tank (21) includes a condensate tank (211) and a return water tank (212). The inner wall of the condensate tank (211) is made of heat-insulating material. The pump (22) has a condensate pump pipe (221) and a return water pump pipe (222) connected to its inlet. When the water level in the condensate tank (211) is high, the control component controls the pump (22) to draw water from the condensate tank (211).

3. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 2, characterized in that: The control components include a float valve (31), a controller (32) with an external power supply, a passive valve plate (33) installed on the return water pumping pipe (222), and a control rope (34) connected to the passive valve plate (33). The controller (32) is electrically connected to the temperature module of the water pump (22) and the external unit (11). The float valve (31) is installed on both the condensate pumping pipe (221) and the return water pumping pipe (222). The control rope (34) is also connected to the float valve (31) located in the condensate tank (211). When the water level in the condensate tank (211) is high, the control rope (34) pulls the passive valve plate (33) to close. When the temperature of the heat exchanger (112) is high and the water volume in the water tank (21) is large, the water pump (22) runs; when the temperature of the heat exchanger (112) is low or the water volume in the water tank (21) is small, the water pump (22) stops running; when the temperature of the heat exchanger (112) is moderate but the water volume in the water tank (21) is large, the water pump (22) runs.

4. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 3, characterized in that: The float valve (31) includes a valve body (311), a connecting rod (312) for controlling the opening and closing of the valve body (311), and a first float (313) disposed on the connecting rod (312). The control assembly further includes a fixed magnet (35), a movable magnet (36), a second float (37), and a connecting rope (38). The fixed magnet (35) is fixed to the inner bottom wall of the condensate tank (211). The movable magnet (36) is fixed to the bottom of the first float (313) located in the condensate tank (211). The second float (37) is placed in the condensate tank (211) and connected to the first float (313) located in the condensate tank (211) through the connecting rope (38). When the fixed magnet (35) and the movable magnet (36) are in contact with each other, the attraction between the fixed magnet (35) and the movable magnet (36) is greater than the buoyancy of the first float (313) and less than the buoyancy of the first float (313) plus the second float (37).

5. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 4, characterized in that: The valve body (311) is provided with a piezoelectric ceramic (51) electrically connected to the controller (32), and a pressure rod (52) is fixedly connected to the connecting rod (312). When the first float (313) touches the bottom, the pressure rod (52) abuts against the piezoelectric ceramic (51), and the piezoelectric ceramic (51) is electrically connected to the water pump (22).

6. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 1, characterized in that: The condenser box (41) is inclined, and the bottom wall of the condenser box (41) is bent inward with multiple guide grooves (411). The groove direction of the guide grooves (411) is the same as the inclination direction of the condenser box (41). The lowest point of the condenser box (41) has a downward drooping part. A heat-conducting mesh (412) is also provided inside the condenser box (41).

7. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 3, characterized in that: The condenser box (41) is provided with a thermoelectric generator (6) that is electrically connected to the controller (32) on the side away from the external body (11).

8. The energy-saving water-cooled heat dissipation device for an air conditioner outdoor unit according to claim 1, characterized in that: The top of the water storage tank (21) is provided with a filter plate (7), which consists of a sound-absorbing layer (71), a filter layer (72) and a flow guiding layer (73) from top to bottom.

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