A water receiving tray assembly and its anti-overflow control method

Abstract

The present invention discloses a water receiving tray assembly and an anti-overflow control method thereof, including a water receiving tray, and further including: an exhaust evaporation pipe for heating and evaporating the melted water in the water receiving tray; a fixing clip for fixing the exhaust evaporation pipe in the water receiving tray; a first water outlet pipe communicated with the water receiving tray for discharging the melted water in the water receiving tray, and a first normally closed solenoid valve is installed on the first water outlet pipe; a first anti-overflow structure, the first anti-overflow structure includes a sleeve, the sleeve is fixedly connected to the water receiving tray, and an overflow box is fixedly sleeved on the top of the sleeve. In the present invention, by detecting the water level of the melted water in the water receiving tray, controlling the melted water through the cooperation of corresponding single or multiple water outlet pipes, accelerating the discharge of the melted water, effectively avoiding the risk that the melted water may overflow the water receiving tray and effectively preventing the melted water from overflowing.

Description

Technical Field

[0001] The present invention relates to the technical field of water receiving trays, and particularly to a water receiving tray assembly and an anti-overflow control method therefor. Background Art

[0002] In refrigeration equipment, the evaporated water in the freezing evaporator water receiving tray is usually frozen and cannot be directly discharged outside the box, so a heating device is added to the water receiving tray. The heating of the water receiving tray is generally carried out by means of a compressor high-pressure pipe or an electric heating pipe.

[0003] The melted water stored in the water receiving tray is mainly heated and evaporated through the exhaust evaporation pipe to prevent the water in the water receiving tray from overflowing. However, this method cannot sense the water storage amount in the water receiving tray. When there is more melted water, the heating of the exhaust evaporation pipe usually cannot ensure that the water in the water receiving tray is evaporated, resulting in the situation that the melted water overflows the water receiving tray, affecting the normal use of users. Summary of the Invention

[0004] In order to solve the technical problems mentioned in the above background art, a water receiving tray assembly and an anti-overflow control method therefor are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water receiving tray assembly includes a water receiving tray, and further includes:

[0007] An exhaust evaporation pipe for heating and evaporating the melted water in the water receiving tray;

[0008] A fixing clip for fixing the exhaust evaporation pipe in the water receiving tray;

[0009] A first water outlet pipe communicating with the water receiving tray for discharging the melted water in the water receiving tray, and a first normally closed solenoid valve is installed on the first water outlet pipe;

[0010] A first anti-overflow structure, the first anti-overflow structure includes a sleeve, the sleeve is fixedly connected to the water receiving tray, an overflow box is sleeved and fixed at the top of the sleeve, through grooves are formed around the bottom of the sleeve, the top of the sleeve extends upward into the interior of the overflow box, and the horizontal plane of the top of the sleeve is set as liquid level a, the top of the overflow box is flush with the top of the water receiving tray, and the horizontal plane of the top of the overflow box is set as liquid level b, a second water outlet pipe is communicated with the bottom of the overflow box, and the free end of the second water outlet pipe extends to the outside of the water receiving tray and is arranged on the same side of the water receiving tray as the first water outlet pipe;

[0011] A second anti-overflow structure for receiving the melted water in the water receiving tray that overflows liquid level b;

[0012] The water pumping assembly starts when the liquid level of the melted water in the water receiving tray reaches level b, and pumps out the melted water in the water receiving tray;

[0013] The detection element includes a first liquid level sensor and a second liquid level sensor. The first liquid level sensor detects whether the melted water in the water receiving tray reaches level a, and the second liquid level sensor detects whether the melted water in the water receiving tray reaches level b, and generates corresponding detection signals;

[0014] The controller is connected to the first normally closed solenoid valve, the exhaust evaporation pipe, the water pumping assembly and the detection element. The controller is used to receive the detection signals, control the exhaust evaporation pipe to stop heating, control the water pumping assembly to start, and open the first normally closed solenoid valve and the second normally closed solenoid valve.

[0015] As a further description of the above technical solution:

[0016] The second anti-overflow structure includes an overflow tank and a third water outlet pipe. The bottom of the overflow tank is higher than the first water outlet pipe and the second water outlet pipe. The overflow tank is a groove formed between the inner and outer walls of the water receiving tray. The third water outlet pipe is communicated with the overflow tank and is arranged on the same side of the water receiving tray as the first water outlet pipe and the second water outlet pipe.

[0017] As a further description of the above technical solution:

[0018] The water pumping assembly includes a micro water pump. The input end of the micro water pump is communicated with the first water outlet pipe through a connecting pipe. A second normally closed solenoid valve is installed on the connecting pipe. The output end of the micro water pump is communicated with a fourth water outlet pipe.

[0019] As a further description of the above technical solution:

[0020] The controller is connected to the micro water pump and the second normally closed solenoid valve. When the controller receives the detection signal that the water level reaches level a, it controls the exhaust evaporation pipe to close and the first normally closed solenoid valve to open;

[0021] When the controller receives the detection signal that the water level reaches level b, it controls the first normally closed solenoid valve and the exhaust evaporation pipe to close. At the same time, it controls the micro water pump and the second normally closed solenoid valve to open.

[0022] As a further description of the above technical solution:

[0023] The fixing clip includes an L-shaped plate. One side of the top of the horizontal end of the L-shaped plate is fixedly connected with a vertical plate. A clamping groove is formed at the bottom of the vertical plate. A pipe-passing groove communicated with the clamping groove is formed on the horizontal end of the L-shaped plate. A waist-shaped groove is formed on the vertical end of the L-shaped plate, and a bolt is arranged in the waist-shaped groove.

[0024] As a further description of the above technical solution:

[0025] The pipeline of the exhaust evaporation pipe passes through the pipe slot and the clamping slot. The horizontal end of the L-shaped plate contacts the bottom of the water receiving tray, and the vertical end of the L-shaped plate contacts the side wall of the water receiving tray, and the fixing clip and the water receiving tray are connected and fixed by bolts.

[0026] As a further description of the above technical solution:

[0027] A method for preventing overflow control of a water receiving tray assembly includes: a control method for the water level of the melted water in the water receiving tray being lower than liquid level a, an overflow pre-control method for the water level reaching liquid level a, and an overflow control method for the water level reaching liquid level b.

[0028] As a further description of the above technical solution:

[0029] The control method for the water level of the melted water in the water receiving tray being lower than liquid level a is: the melted water is heated and evaporated through the exhaust evaporation pipe.

[0030] As a further description of the above technical solution:

[0031] The overflow pre-control method for the water level of the melted water in the water receiving tray reaching liquid level a is: the exhaust evaporation pipe is closed, the first normally closed solenoid valve is opened, and the melted water is discharged out of the water receiving tray through the first water outlet pipe and the second water outlet pipe.

[0032] As a further description of the above technical solution:

[0033] The overflow control method for the water level of the melted water in the water receiving tray reaching liquid level b is: the exhaust evaporation pipe is closed, the second normally closed solenoid valve and the micro water pump are opened, and the melted water is discharged out of the water receiving tray through the second water outlet pipe, the third water outlet pipe and the fourth water outlet pipe.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] 1. In the present invention, when the water level reaches liquid level a, it indicates that the water level continues to rise, and there is a risk of overflow. At the same time, the first liquid level sensor detects that the water level reaches liquid level a, transmits the first detection signal to the controller, and the controller controls the exhaust evaporation pipe to be closed and the first normally closed solenoid valve to be opened. After the water level crosses liquid level a, under the action of water pressure, it enters the sleeve through the through groove, enters the inside of the overflow box through the sleeve, and the melted water is discharged from the water receiving tray through the first water outlet pipe and the second water outlet pipe at the same time, effectively avoiding the risk that the melted water may overflow from the water receiving tray.

[0036] 2. In the present invention, when the water level reaches the liquid level b, it indicates that the water has overflowed. The second liquid level sensor detects the detection signal that the water level exceeds the liquid level b and transmits the second detection signal to the controller. The controller controls the first normally closed solenoid valve and the exhaust evaporation pipe to close, and the second normally closed solenoid valve and the micro water pump to open. The micro water pump operates to discharge the melted water in the water receiving tray through the first water outlet pipe, the connecting pipe, the micro water pump, and the fourth water outlet pipe. At the same time, if there is melted water overflowing in the overflow tank, at this time, the second water outlet pipe, the third water outlet pipe, and the fourth water outlet pipe discharge the melted water simultaneously. With the help of an external load, the melted water is discharged at a relatively fast speed, effectively avoiding the overflow of the melted water. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 FIG. shows a schematic structural diagram of a water receiving tray assembly provided according to an embodiment of the present invention;

[0038] Figure 2 FIG. shows a cross-sectional structural diagram of a water receiving tray of a water receiving tray assembly provided according to an embodiment of the present invention;

[0039] Figure 3 FIG. shows a schematic connection structure diagram of a fixing clip and an exhaust evaporation pipe of a water receiving tray assembly provided according to an embodiment of the present invention;

[0040] Figure 4 FIG. shows a schematic structural diagram of a fixing clip of a water receiving tray assembly provided according to an embodiment of the present invention;

[0041] Figure 5 FIG. shows an enlarged schematic diagram of part B of a water receiving tray assembly provided according to an embodiment of the present invention;

[0042] Figure 6 FIG. shows an enlarged schematic diagram of part A of a water receiving tray assembly provided according to an embodiment of the present invention;

[0043] Figure 7 FIG. shows an enlarged schematic diagram of part C of a water receiving tray assembly provided according to an embodiment of the present invention.

[0044] Legend:

[0045] 1. Water receiving tray; 11. First water outlet pipe; 12. First normally closed solenoid valve; 21. Overflow tank; 22. Third water outlet pipe; 3. First anti-overflow structure; 31. Overflow box; 32. Sleeve; 321. Through groove; 33. Second water outlet pipe; 4. Fixing clip; 41. L-shaped plate; 411. Pipe-passing groove; 412. Waist-shaped groove; 42. Vertical plate; 421. Card slot; 43. Bolt; 5. Water pumping assembly; 51. Connecting pipe; 52. Second normally closed solenoid valve; 53. Micro water pump; 54. Fourth water outlet pipe; 6. Exhaust evaporation pipe; 7. Detection element; 8. Controller. DETAILED DESCRIPTION OF THE INVENTION

[0046] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0047] Embodiment 1

[0048] Please refer to Figure 1-7 , the present invention provides a technical solution: a water receiving tray assembly. The whole water receiving tray assembly is fixed in the equipment box body by bolts 43 and is arranged below the evaporator. It includes a water receiving tray 1, a first water outlet pipe 11, a second water outlet pipe 33, a third water outlet pipe 22, and a fourth water outlet pipe 54 that are connected to the water receiving tray 1 and extend to the outside of the box body. The device or box for collecting and discharging the melted water is externally connected, or a long hose is connected to discharge it, so as to avoid the melted water directly draining to the ground. It also includes:

[0049] As Figure 1 and Figure 3 shown, an exhaust evaporation pipe 6, which is connected to the evaporator and is used to heat and evaporate the melted water in the water receiving tray 1;

[0050] As Figure 1 , Figure 3 and Figure 4 shown, a fixing clip 4, which is used to fix the exhaust evaporation pipe 6 in the water receiving tray 1. The fixing clip 4 includes an L-shaped plate 41. One side of the top of the horizontal end of the L-shaped plate 41 is fixedly connected with a vertical plate 42. A clamping groove 421 is opened at the bottom of the vertical plate 42. A pipe-passing groove 411 communicating with the clamping groove 421 is opened on the horizontal end of the L-shaped plate 41. A waist-shaped groove 412 is opened on the vertical end of the L-shaped plate 41. A bolt 43 is arranged in the waist-shaped groove 412. The pipeline of the exhaust evaporation pipe 6 passes through the pipe-passing groove 411 and the clamping groove 421. The horizontal end of the L-shaped plate 41 contacts the bottom of the water receiving tray 1, and the vertical end of the L-shaped plate 41 contacts the side wall of the water receiving tray 1. The fixing clip 4 and the water receiving tray 1 are connected and fixed by bolts 43. The structure is simple, which is convenient for the disassembly and assembly of the exhaust evaporation pipe 6 on the water receiving tray 1 and is convenient for the maintenance or replacement of the exhaust evaporation pipe 6;

[0051] As Figure 2 and Figure 5 shown, a first water outlet pipe 11, which extends to the outside of the equipment box body and is connected to the water receiving tray 1, is used to discharge the melted water in the water receiving tray 1. A first normally closed solenoid valve 12 is installed on the first water outlet pipe 11;

[0052] As Figure 1 , Figure 2 and Figure 6As shown, the first anti-overflow structure 3, the first anti-overflow structure 3 includes a sleeve 32, the sleeve 32 is fixedly connected to the water receiving tray 1, an overflow box 31 is fixedly sleeved on the top of the sleeve 32, through grooves 321 are formed around the bottom of the sleeve 32, the top end of the sleeve 32 extends upward into the interior of the overflow box 31, and the horizontal plane at the top of the sleeve 32 is set as liquid level a, the top of the overflow box 31 is flush with the top of the water receiving tray 1, and the horizontal plane at the top of the overflow box 31 is set as liquid level b, a second water outlet pipe 33 is communicated with the bottom of the overflow box 31, the second water outlet pipe 33 extends to the outside of the box body, and the free end of the second water outlet pipe 33 extends to the outside of the water receiving tray 1 and is arranged on the same side as the first water outlet pipe 11 on the water receiving tray 1;

[0053] Specifically, when the melting water level in the water receiving tray 1 is higher than the liquid level a, under the action of water pressure, it enters the sleeve 32 through the through grooves 321, enters the interior of the overflow box 31 through the sleeve 32, and then is discharged from the water receiving tray 1 through the second water outlet pipe 33. At the same time, the first normally closed solenoid valve 12 is opened, then the first water outlet pipe 11 and the second water outlet pipe 33 discharge the melting water at the same time, accelerating the drainage speed and avoiding the risk that the melting water may overflow from the water receiving tray 1;

[0054] As Figure 1 、 Figure 2 and Figure 5 shown, the second anti-overflow structure is used to receive the melting water in the water receiving tray 1 that overflows the liquid level b. The second anti-overflow structure includes an overflow tank 21 and a third water outlet pipe 22. The bottom of the overflow tank 21 is higher than the first water outlet pipe 11 and the second water outlet pipe 33. The overflow tank 21 is a groove formed between the inner and outer surfaces of the water receiving tray 1. The third water outlet pipe 22 is communicated with the overflow tank 21 and is arranged on the same side as the first water outlet pipe 11 and the second water outlet pipe 33 on the water receiving tray 1;

[0055] Specifically, when the melting water level in the water receiving tray 1 reaches the liquid level b and the water level continues to rise, it will inevitably overflow from the water receiving tray 1. Therefore, an overflow tank 21 is provided, and the overflowing water enters the overflow tank 21 and is discharged from the water receiving tray 1 through the third water outlet pipe 22. At the same time, the second normally closed solenoid valve 52 and the micro water pump 53 are opened, and the second water outlet pipe 33, the third water outlet pipe 22 and the fourth water outlet pipe 54 discharge the melting water at the same time, further accelerating the drainage speed and effectively preventing the water from overflowing from the water receiving tray 1;

[0056] As Figure 1 and Figure 7 shown, the pumping assembly 5 is installed on the outside of the equipment box body and is started when the liquid level of the melting water in the water receiving tray 1 reaches the liquid level b to pump out the melting water in the water receiving tray 1. The pumping assembly 5 includes a micro water pump 53. The input end of the micro water pump 53 is communicated with the first water outlet pipe 11 through a connecting pipe 51. A second normally closed solenoid valve 52 is installed on the connecting pipe 51. The output end of the micro water pump 53 is communicated with a fourth water outlet pipe 54;

[0057] Specifically, the second normally closed solenoid valve 52 is opened, the connecting pipe 51 connects the first water outlet pipe 11 and the micro water pump 53, and the micro water pump 53 operates to discharge the melted water in the water receiving tray 1 through the first water outlet pipe 11, the connecting pipe 51, the micro water pump 53 and the fourth water outlet pipe 54. By applying an external load, the water in the water receiving tray 1 is discharged to prevent the melted water from overflowing the water receiving tray 1;

[0058] As Figure 1 and Figure 2 shown, the detection element 7, including a first liquid level sensor and a second liquid level sensor, is arranged at a position on the side wall of the water receiving tray 1 adapted to the liquid levels a and b. The first liquid level sensor detects whether the melted water in the water receiving tray 1 reaches the liquid level a and generates a first detection signal, and the second liquid level sensor detects whether the melted water in the water receiving tray 1 reaches the liquid level b and generates a second detection signal;

[0059] As Figure 2 and Figure 6 shown, the controller 8 is connected to the first normally closed solenoid valve 12, the second normally closed solenoid valve 52, the exhaust evaporation pipe 6, the micro water pump 53 and the detection element 7. When the water level reaches the liquid level a, the controller 8 receives the first detection signal, controls the exhaust evaporation pipe 6 to close and the first normally closed solenoid valve 12 to open;

[0060] When the water level reaches the liquid level b, the controller 8 receives the second detection signal, controls the first normally closed solenoid valve 12 and the exhaust evaporation pipe 6 to close, and at the same time, controls the micro water pump 53 and the second normally closed solenoid valve 52 to open.

[0061] Please refer to Figure 1-7 , a method for preventing overflow control of a water receiving tray assembly, including: a control method for the melted water level in the water receiving tray 1 being lower than the liquid level a: when the water level is lower than the liquid level a, it indicates that the melted water in the water receiving tray 1 is appropriate and there is no risk of overflow. At the same time, within the rated operating range of the exhaust evaporation pipe 6, dry burning will not occur, and the melted water is heated and evaporated through the exhaust evaporation pipe 6;

[0062] An overflow pre-control method for the melted water level in the water receiving tray 1 reaching the liquid level a is as follows: when the water level reaches the liquid level a, it indicates that the water level continues to rise, and there is a risk of overflow. At the same time, the first liquid level sensor detects that the water level reaches the liquid level a and transmits the first detection signal to the controller 8. The controller 8 controls the exhaust evaporation pipe 6 to close and the first normally closed solenoid valve 12 to open. After the water level crosses the liquid level a, under the action of water pressure, it enters the sleeve 32 through the through groove 321, enters the inside of the overflow box 31 through the sleeve 32, and the melted water is discharged from the water receiving tray 1 through the first water outlet pipe 11 and the second water outlet pipe 33 simultaneously:

[0063] The overflow control method when the water level of the melted water in the water receiving tray 1 reaches the liquid level b is as follows: when the water level reaches the liquid level b, it indicates that the water has overflowed. The second liquid level sensor detects the detection signal that the water level exceeds the liquid level b, and transmits the second detection signal to the controller 8. The controller 8 controls the first normally closed solenoid valve 12 and the exhaust evaporation pipe 6 to close, and the second normally closed solenoid valve 52 and the micro water pump 53 to open. The micro water pump 53 operates to discharge the melted water in the water receiving tray 1 through the first water outlet pipe 11, the connecting pipe 51, the micro water pump 53, and the fourth water outlet pipe 54. At the same time, if the overflow tank 21 overflows with melted water, then at this time, the second water outlet pipe 33, the third water outlet pipe 22, and the fourth water outlet pipe 54 discharge the melted water simultaneously, and with the help of an external load, the melted water is discharged at a faster speed.

[0064] Working principle: When in use, first, when the water level is lower than the liquid level a, it indicates that the melted water in the water receiving tray 1 is appropriate and there is no risk of overflow. At the same time, within the rated working range of the exhaust evaporation pipe 6, dry burning will not occur. At this time, the first normally closed solenoid valve 12 and the second normally closed solenoid valve 52 are closed, and the exhaust evaporation pipe 6 is opened to heat and evaporate the melted water in the water receiving tray 1.

[0065] Secondly, when the water level reaches the liquid level a, it indicates that the water level continues to rise, and there is a risk of overflow. At the same time, the first liquid level sensor detects that the water level reaches the liquid level a, and transmits the first detection signal to the controller 8. The controller 8 controls the exhaust evaporation pipe 6 to close and the first normally closed solenoid valve 12 to open. After the water level crosses the liquid level a, under the action of water pressure, it enters the sleeve 32 through the through groove 321, enters the inside of the water overflow box 31 through the sleeve 32, and the melted water is discharged from the water receiving tray 1 through the first water outlet pipe 11 and the second water outlet pipe 33 simultaneously, effectively avoiding the risk that the melted water may overflow from the water receiving tray 1.

[0066] Finally, when the water level reaches the liquid level b, it indicates that the water has overflowed. The second liquid level sensor detects the detection signal that the water level exceeds the liquid level b, and transmits the second detection signal to the controller 8. The controller 8 controls the first normally closed solenoid valve 12 and the exhaust evaporation pipe 6 to close, and the second normally closed solenoid valve 52 and the micro water pump 53 to open. The micro water pump 53 operates to discharge the melted water in the water receiving tray 1 through the first water outlet pipe 11, the connecting pipe 51, the micro water pump 53, and the fourth water outlet pipe 54. At the same time, if the overflow tank 21 overflows with melted water, then at this time, the second water outlet pipe 33, the third water outlet pipe 22, and the fourth water outlet pipe 54 discharge the melted water simultaneously, and with the help of an external load, the melted water is discharged at a faster speed, effectively avoiding the overflow of the melted water.

[0067] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A water receiving tray assembly, comprising a water receiving tray (1), characterized in that, It further includes: An exhaust evaporation pipe (6) for heating and evaporating the melted water in the water receiving tray (1); A fixing clip (4) for fixing the exhaust evaporation pipe (6) in the water receiving tray (1); A first water outlet pipe (11) communicating with the water receiving tray (1) for discharging the melted water in the water receiving tray (1), and a first normally closed solenoid valve (12) is installed on the first water outlet pipe (11); A first anti-overflow structure (3), the first anti-overflow structure (3) includes a sleeve (32), the sleeve (32) is fixedly connected to the water receiving tray (1), an overflow box (31) is sleeved and fixed at the top of the sleeve (32), through grooves (321) are formed around the bottom of the sleeve (32), the top of the sleeve (32) extends upward into the interior of the overflow box (31), and the horizontal plane of the top of the sleeve (32) is set as liquid level a, the top of the overflow box (31) is flush with the top of the water receiving tray (1), and the horizontal plane of the top of the overflow box (31) is set as liquid level b, the bottom of the overflow box (31) is communicated with a second water outlet pipe (33), and the free end of the second water outlet pipe (33) extends to the outside of the water receiving tray (1) and is arranged on the same side of the water receiving tray (1) as the first water outlet pipe (11); A second anti-overflow structure for receiving the melted water in the water receiving tray (1) that overflows liquid level b; A pumping assembly (5) that starts when the liquid level of the melted water in the water receiving tray (1) reaches liquid level b and pumps out the melted water in the water receiving tray (1); A detection element (7) including a first liquid level sensor and a second liquid level sensor, the first liquid level sensor detects whether the melted water in the water receiving tray (1) reaches liquid level a, the second liquid level sensor detects whether the melted water in the water receiving tray (1) reaches liquid level b, and generates corresponding detection signals; The pumping assembly (5) includes a micro water pump (53), the input end of the micro water pump (53) is communicated with the first water outlet pipe (11) through a connecting pipe (51), a second normally closed solenoid valve (52) is installed on the connecting pipe (51), and the output end of the micro water pump (53) is communicated with a fourth water outlet pipe (54); A controller (8) is connected to the first normally closed solenoid valve (12), the exhaust evaporation pipe (6), the pumping assembly (5), and the detection element (7). The controller (8) is used to receive the detection signals, control the exhaust evaporation pipe (6) to stop heating, control the pumping assembly (5) to start, and open the first normally closed solenoid valve (12) and the second normally closed solenoid valve (52).

2. The water receiving tray assembly according to claim 1, characterized in that The second anti-overflow structure includes an overflow trough (21) and a third water outlet pipe (22). The bottom of the overflow trough (21) is higher than the first water outlet pipe (11) and the second water outlet pipe (33). The overflow trough (21) is a groove formed between the inner and outer walls of the water receiving tray (1), and the third water outlet pipe (22) is communicated with the overflow trough (21) and is arranged on the same side of the water receiving tray (1) as the first water outlet pipe (11) and the second water outlet pipe (33).

3. The water receiving tray assembly according to claim 2, characterized in that, The controller (8) is connected to the micro water pump (53) and the second normally closed solenoid valve (52). When the controller (8) receives the detection signal that the water level reaches the liquid level a, it controls the exhaust evaporation pipe (6) to close and the first normally closed solenoid valve (12) to open; When the controller (8) receives the detection signal that the water level reaches the liquid level b, it controls the first normally closed solenoid valve (12) and the exhaust evaporation pipe (6) to close. At the same time, it controls the micro water pump (53) and the second normally closed solenoid valve (52) to open.

4. The water receiving tray assembly according to claim 3, wherein, The fixing clip (4) includes an L-shaped plate (41). One side of the top of the horizontal end of the L-shaped plate (41) is fixedly connected with a vertical plate (42). A clamping groove (421) is formed at the bottom of the vertical plate (42). A pipe-passing groove (411) communicating with the clamping groove (421) is formed on the horizontal end of the L-shaped plate (41). A waist-shaped groove (412) is formed on the vertical end of the L-shaped plate (41), and a bolt (43) is arranged in the waist-shaped groove (412).

5. The water receiving tray assembly according to claim 4, characterized in that, The pipeline of the exhaust evaporation pipe (6) passes through the pipe-passing groove (411) and the clamping groove (421). The horizontal end of the L-shaped plate (41) is in contact with the bottom of the water receiving tray (1), and the vertical end of the L-shaped plate (41) is in contact with the side wall of the water receiving tray (1). The fixing clip (4) and the water receiving tray (1) are connected and fixed by the bolt (43).

6. A method for preventing overflow of a water receiving tray assembly according to claim 5, characterized in that, Comprising: A control method for the melting water level in the water receiving tray (1) being lower than the liquid level a, an overflow pre-control method for the water level reaching the liquid level a, and an overflow control method for the water level reaching the liquid level b.

7. The anti-overflow control method of a water receiving tray assembly according to claim 6, characterized in that, The control method for the melting water level in the water receiving tray (1) being lower than the liquid level a is: the melting water is heated and evaporated through the exhaust evaporation pipe (6).

8. The anti-overflow control method of a water receiving tray assembly according to claim 6, characterized in that, The overflow pre-control method for the melting water level in the water receiving tray (1) reaching the liquid level a is: the exhaust evaporation pipe (6) is closed, the first normally closed solenoid valve (12) is opened, and the melting water is discharged out of the water receiving tray (1) through the first water outlet pipe (11) and the second water outlet pipe (33).

9. The anti-overflow control method of a water receiving tray assembly according to claim 6, characterized in that, The overflow control method for the melting water level in the water receiving tray (1) reaching the liquid level b is: the exhaust evaporation pipe (6) is closed, the second normally closed solenoid valve (52) and the micro water pump (53) are opened, and the melting water is discharged out of the water receiving tray (1) through the second water outlet pipe (33), the third water outlet pipe (22), and the fourth water outlet pipe (54).

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