Outdoor unit and heating and ventilation apparatus

Abstract

Provided are an outdoor unit and a heating and ventilation apparatus. The outdoor unit includes an outdoor unit casing, an outdoor heat exchanger, an outdoor fan, a compressor assembly, a second electrical control box component, and a water-circuit heat-exchange assembly. The water-circuit heat-exchange assembly includes a water-circuit heat exchanger and a water pump. The water-circuit heat exchanger has a water flow passage and a refrigerant flow passage that exchange heat with each other. The water pump is configured to drive water in the water flow passage to flow. The second electrical control box component is configured to control the water-circuit heat-exchange assembly and is located above the water pump and/or the water-circuit heat exchanger.

What is claimed is: 
     
         1 . An outdoor unit, comprising:
 an outdoor unit casing;   an outdoor heat exchanger, an outdoor fan, a compressor assembly, and a second electrical control box component that are disposed in the outdoor unit casing; and   a water-circuit heat-exchange assembly at least partially disposed in the outdoor unit casing, the water-circuit heat-exchange assembly comprising a water-circuit heat exchanger and a water pump that are disposed in the outdoor unit casing, wherein:   the water-circuit heat exchanger has a water flow passage and a refrigerant flow passage that exchange heat with each other;   the water pump is configured to drive water in the water flow passage to flow;   the compressor assembly is configured to drive refrigerant in the refrigerant flow passage to flow; and   the second electrical control box component is configured to control the water-circuit heat-exchange assembly and is located above the water pump and/or the water-circuit heat exchanger.   
     
     
         2 . The outdoor unit according to  claim 1 , wherein:
 a thickness direction of the second electrical control box component extends in a left-right direction; and/or   a length direction of the second electrical control box component extends in an up-down direction.   
     
     
         3 . The outdoor unit according to  claim 1 , wherein:
 the water pump is directly or indirectly disposed at a base of the outdoor unit casing; and/or   the outdoor unit comprises a second partition plate disposed in the outdoor unit casing, wherein the water pump is directly or indirectly disposed at the second partition plate.   
     
     
         4 . The outdoor unit according to  claim 3 , wherein the water-circuit heat exchanger has a first water inlet located at a lower end of the water-circuit heat exchanger, the first water inlet being connected to a water inlet pipe, and the water pump being connected in series to the water inlet pipe. 
     
     
         5 . The outdoor unit according to  claim 1 , wherein the water-circuit heat-exchange assembly comprises a drain pipe configured to discharge water from the water-circuit heat-exchange assembly, and the water-circuit heat exchanger has a first water inlet connected to a water inlet pipe, wherein:
 the water pump is connected in series to the water inlet pipe;   the drain pipe is connected to the water inlet pipe and in communication with the water inlet pipe; and   a connection between the drain pipe and the water inlet pipe is located at a side of the water pump away from the first water inlet.   
     
     
         6 . The outdoor unit according to  claim 1 , wherein the water-circuit heat-exchange assembly comprises a water inlet pipe and a water outlet pipe, the water flow passage of the water-circuit heat exchanger being adapted to bring the water inlet pipe into communication with the water outlet pipe, and each of the water inlet pipe and the water outlet pipe passing through a rear plate of the outdoor unit casing. 
     
     
         7 . The outdoor unit according to  claim 6 , wherein the outdoor unit casing is provided with a second partition plate, wherein:
 the water-circuit heat exchanger is connected to the second partition plate; and   the second partition plate comprises a side plate portion adjacent to the rear plate, each of the water inlet pipe and the water outlet pipe extending through the side plate portion.   
     
     
         8 . The outdoor unit according to  claim 1 , wherein:
 the water-circuit heat exchanger has a first water inlet and a first water outlet; and   the water-circuit heat-exchange assembly further comprises an electric heater having a second water inlet and a second water outlet, the second water inlet being connected to the first water outlet.   
     
     
         9 . The outdoor unit according to  claim 8 , wherein
 the electric heater is located above the water-circuit heat exchanger;   the first water outlet is formed at an upper end of the water-circuit heat exchanger; and   the second water inlet is formed at a lower end of the electric heater.   
     
     
         10 . The outdoor unit according to  claim 9 , wherein:
 the first water outlet and the second water inlet are located at one side; and   the first water outlet is connected to the second water inlet by a connection pipe of a U-shape or an arc shape.   
     
     
         11 . The outdoor unit according to  claim 8 , wherein:
 the first water inlet and the first water outlet are located at one side of the water-circuit heat exchanger; and/or   the second water inlet and the second water outlet are located at one side of the electric heater.   
     
     
         12 . The outdoor unit according to  claim 8 , wherein:
 the first water outlet is connected to the second water inlet by a connection pipe;   the first water inlet is connected to a water inlet pipe;   the second water outlet is connected to a water outlet pipe; and   the connection pipe, the water inlet pipe, and the water outlet pipe are located at the same sides of the water-circuit heat exchanger and the electric heater.   
     
     
         13 . The outdoor unit according to  claim 8 , comprising a second partition plate disposed in the outdoor unit casing, the electric heater being mounted at the second partition plate. 
     
     
         14 . The outdoor unit according to  claim 8 , wherein the second electrical control box component comprises:
 a main electrical control box body;   a sub-electrical control box body located outside the main electrical control box body, the sub-electrical control box body and the main electrical control box body each being independently formed;   a main control board disposed in the main electrical control box body;   an electric heater control assembly at least partially disposed in the sub-electrical control box body and configured to control the electric heater.   
     
     
         15 . The outdoor unit according to  claim 14 , wherein:
 the sub-electrical control box body is connected to an upper part of the main electrical control box body; and/or   the sub-electrical control box body is located at a side of the main electrical control box body adjacent to the electric heater.   
     
     
         16 . The outdoor unit according to  claim 1 , wherein the second electrical control box component comprises a main control board,
 wherein the main control board comprises a first main control board and a second main control board that are arranged in an up-down direction, the first main control board being configured to at least control the refrigerant flow passage, and the second main control board being configured to at least control the water pump.   
     
     
         17 . The outdoor unit according to  claim 1 , wherein the water-circuit heat exchanger has a first water inlet and a first water outlet, the first water inlet being connected to a water inlet pipe, and the water inlet pipe being connected to the first water inlet by a quick plug structure. 
     
     
         18 . The outdoor unit according to  claim 17 , wherein:
 the water pump is connected in series to the water inlet pipe;   the water inlet pipe comprises a first water inlet pipe section and a second water inlet pipe section connected to the first water inlet; and   the water pump is connected between the first water inlet pipe section and the second water inlet pipe section, the water pump being connected to at least one of the first water inlet pipe section and the second water inlet pipe section by the quick plug structure.   
     
     
         19 . The outdoor unit according to  claim 17 , wherein:
 the water-circuit heat exchanger has the first water inlet and the first water outlet;   the water-circuit heat-exchange assembly further comprises an electric heater having a second water inlet and a second water outlet;   the first water outlet is connected to the second water inlet by a connection pipe;   the first water inlet is connected to the water inlet pipe;   the second water outlet is connected to a water outlet pipe; and   at least one of a connection between the water outlet pipe and the second water outlet, a connection between the connection pipe and the first water outlet, and a connection between the connection pipe and the second water inlet is made by the quick plug structure.   
     
     
         20 . The outdoor unit according to  claim 1 , wherein the water-circuit heat-exchange assembly comprises a water inlet pipe and a water outlet pipe, the water flow passage of the water-circuit heat exchanger being adapted to bring the water inlet pipe into communication with the water outlet pipe, and at least one of the water inlet pipe and the water outlet pipe being a plastic pipe. 
     
     
         21 . The outdoor unit according to  claim 1 , wherein:
 the outdoor unit casing has a fan chamber and a compressor chamber, wherein a first partition plate is disposed between the fan chamber and the compressor chamber, and wherein the first partition plate has a mounting opening formed at a lower part of the first partition plate; and   the water-circuit heat-exchange assembly further comprises an expansion tank mounted at the mounting opening, wherein a part of the expansion tank is located in the fan chamber, and the other part of the expansion tank is located in the compressor chamber.   
     
     
         22 . A heating and ventilation apparatus, comprising the outdoor unit according to  claim 1 .