An intelligent electric drainage pump

Abstract

The present invention relates to the field of air conditioner condensate drainage, and particularly relates to an intelligent electric drainage pump. The power supply box is fixedly arranged on one side of the indoor unit. It further includes a housing, an external connection mechanism, a water pumping mechanism, and an induction mechanism. The external connection mechanism is fixedly arranged at one end of the housing. The water pumping mechanism is fixedly arranged on one side inside the housing, and the water pumping mechanism passes through the housing and extends into the external connection mechanism. The induction mechanism includes a circuit board and a detection component. The circuit board is fixedly arranged on the other side inside the housing. The detection component is fixedly arranged at one end of the circuit board, and the detection component extends into the external connection mechanism. Through the detection by the highly sensitive liquid level probe provided in the lift pump with an integrated structure of the present invention, and in cooperation with the signal regulation of the water tank and the control board, the condensate in the air conditioner can be discharged. The installation is convenient and efficient, greatly improving the drainage efficiency of the air conditioner condensate.

Description

Technical Field

[0001] The present invention relates to the field of air-conditioning condensate drainage, and particularly to an intelligent electric drainage pump. Background Art

[0002] Air-conditioning condensate is the liquid water formed by the condensation process of water vapor. The air-conditioning condensate flows out from the water collecting tray under the evaporator of the indoor unit of the air conditioner. Since the vast majority of room air conditioners basically adopt large temperature differences and machine dew point air supply, when the supply air temperature is lower than the dew point temperature corresponding to the mixing point of fresh air and return air, condensate will be generated. This part of the condensate falls into the evaporator water receiving tray under the action of gravity and is discharged outdoors through a drain pipe.

[0003] Purchase PVC pipes according to the length to drain the condensate outdoors, but the height of the drain pipe must be lower than the height of the water receiving box of the indoor unit of the air conditioner, and it should be lower towards the outside, which is beneficial for smooth drainage. However, currently, in most central air conditioners, a certain amount of condensate in the pipes will accumulate, and if the condensate cannot be drained completely, there is a risk of flowing out from the air outlet of the indoor unit. During this period, it will also flow to various parts of the air conditioner, causing the components inside the air conditioner to be corroded, greatly affecting the performance of the air conditioner. Due to the deficiencies of the existing technology, it is necessary to design an intelligent electric drainage pump. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent electric drainage pump.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Provide an intelligent electric drainage pump, including an indoor unit and a power supply box. The power supply box is fixedly arranged on one side of the indoor unit. It also includes an outer shell, an external connection mechanism, a water pumping mechanism, and an induction mechanism. The external connection mechanism is fixedly arranged at one end of the outer shell. The water pumping mechanism is fixedly arranged on one side inside the outer shell, and the water pumping mechanism passes through the outer shell and extends into the external connection mechanism. The induction mechanism includes a circuit board and a detection component. The circuit board is fixedly arranged on the other side inside the outer shell, and the detection component is fixedly arranged at one end of the circuit board and extends into the external connection mechanism.

[0007] Furthermore, the external connection mechanism includes a heat preservation water tank, a PVC adapter, and a stainless steel filter screen. The heat preservation water tank is fixedly arranged at one end of the outer shell, and an inlet channel is provided inside the heat preservation water tank. The PVC adapter is fixedly arranged inside the inlet channel, and the stainless steel filter screen is snap-connected inside the PVC adapter.

[0008] Further, the pumping mechanism includes an extension pipe, a water inlet pipe, a water pump, a water outlet pipe and a water outlet hose. The water pump is fixedly arranged on one side inside the housing body. The water inlet pipe is fixedly inserted into the water inlet end of the water pump. One end of the extension pipe is fixedly inserted into one end of the water inlet pipe, and the other end of the extension pipe is fixedly inserted into the heat preservation water tank and extends into the PVC adapter.

[0009] Further, one end of the water outlet pipe is fixedly inserted into the water outlet end of the water pump. One end of the water outlet hose is fixedly inserted into the other end of the water outlet pipe, and the water outlet hose extends to the outside of the housing body. A heat preservation layer is attached to the top of the water outlet pipe.

[0010] Further, the circuit board is fixedly arranged on the other side inside the housing body, and a power interface is fixedly arranged on the top of the circuit board. One end of the power interface is fixedly provided with a cable. The other end of the cable is fixedly arranged on the outer edge of the indoor unit through a plurality of fixing brackets, and the other end of the cable is fixedly connected to the power supply box.

[0011] Further, the detection component includes a terminal block, a detection probe, a main probe, an auxiliary probe and two physical probes. The terminal block is fixedly arranged at one end of the circuit board. The detection probe, the main probe, the auxiliary probe and the two physical probes are evenly and fixedly arranged on one side of the terminal block.

[0012] Further, the main probe and the auxiliary probe are located on one side of the detection probe, and the two physical probes are located on the other side of the detection probe. The detection probe, the main probe, the auxiliary probe and the two physical probes all pass through the heat preservation water tank and extend into the PVC adapter.

[0013] Further, four fixing holes are symmetrically and fixedly arranged in pairs on one side of the housing body, and a damping back plate is fixedly arranged on one side of each fixing hole.

[0014] Further, an inner machine water outlet is fixedly arranged on one side outside the indoor unit, and the inner machine water outlet is meshed and sleeved in the PVC adapter.

[0015] Advantages of the present invention:

[0016] First, the lifting pump is fixedly arranged on one side of the indoor unit through the fixing holes until the PVC adapter is screwed onto the inner machine water outlet until the installation surface of the lifting pump housing body is closely attached to the sheet metal plane of the indoor unit, and the power interface of the lifting pump is vertically upward, which is convenient for the access of the wire. When the PVC adapter is screwed in, there is no need to apply PVC glue on the surface of the pipe of the inner machine water outlet. This interface has self-sealing performance and is also convenient for disassembly when cleaning the stainless steel filter screen.

[0017] When the condensate water of the indoor unit enters the PVC adapter through the outlet of the indoor unit and passes through the stainless steel filter screen, the stainless steel filter screen can effectively filter large particles of impurities, effectively resist the impact of water waves, and enhance the reliability of water level recognition;

[0018] This lift pump has a highly sensitive probe-type liquid level detection system. The multi-stage protection function can operate the water pump for drainage according to the signal detected by the probe, and adjust the drainage duration according to the probe signal detection situation. The lift pump has high sensitivity, can effectively detect water sources of various cleanliness levels, and has multiple water level detections arranged in a small volume and high density. The circuit board side uses detection probes, main probes, auxiliary probes and two physical probes, with up to 60 levels of error correction, which can correct the mis-triggered signals of the probes to ensure the reliable and stable operation of the system.

[0019] This lift pump has the characteristic of silent operation. Through system optimization design, the running power of the water pump can be adjusted, so that the positive system can maintain extremely low running noise while ensuring efficient operation, achieving silent operation. Relative to the ambient noise, it is very difficult for the human ear to capture it unconsciously.

[0020] This lift pump is easy to install. This product has an integrated structure, and innovatively combines the water tank and the control circuit board into one, greatly increasing the installation convenience. Only need to insert the outlet of the air-conditioning condensate water indoor unit of this product into the PVC adapter in the heat preservation water tank of this product, and connect the power cord to the power supply terminal of the air-conditioning indoor unit to complete the functions of most products.

[0021] Through the high-sensitivity liquid level probe detection set in the lift pump with an integrated structure of the present invention, combined with the signal regulation of the water tank and the control board, the condensate water in the air conditioner can be discharged. It is easy to install and highly efficient, greatly improving the discharge efficiency of the air-conditioning condensate water. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention will be briefly introduced below.

[0023] Figure 1 It is the overall assembly schematic diagram of the present invention;

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the present invention;

[0025] Figure 3 It is the partial disassembly schematic of the present invention Figure 1 ;

[0026] Figure 4 It is the partial disassembly schematic of the present invention Figure 2 ;

[0027] Figure 5 It is the disassembly schematic diagram of the lift pump of the present invention;

[0028] Figure 6 Schematic diagram of the internal disassembly of the lifting pump of the present invention;

[0029] Figure 7 is Figure 6 Enlarged schematic diagram at position A in

[0030] Figure 8 Partial disassembly schematic diagram of the water pumping mechanism of the present invention;

[0031] Figure 9 Schematic three-dimensional structure diagram of the intelligent lifting pump of the present invention;

[0032] Figure 10 Schematic three-dimensional installation structure diagram of the intelligent lifting pump of the present invention;

[0033] Figure 11 Schematic three-dimensional structure diagram of the cable layout of the intelligent lifting pump of the present invention;

[0034] In the figure:

[0035] Indoor unit 1, outlet of the indoor unit 10;

[0036] Power supply box 2;

[0037] Outer housing 3, fixing holes 30, shock-absorbing back plate 31;

[0038] External connection mechanism 4, heat preservation water tank 40, water inlet channel 400, PVC adapter 41, stainless steel filter screen 42;

[0039] Water pumping mechanism 5, extension pipe 50, water inlet pipe 51, water pump 52, water outlet pipe 53, heat preservation layer 530, water outlet hose 54;

[0040] Induction mechanism 6, circuit board 60, power supply interface 600, cable 601, detection component 61, terminal block 610, detection probe 611, main probe 612, auxiliary probe 613, physical probe 614. Detailed implementation manners

[0041] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific implementation manners.

[0042] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings are omitted, enlarged or reduced, and do not represent the dimensions of the actual product.

[0043] The present invention provides a technical solution, referring to Figures 1 to 4An intelligent electric drainage pump shown in the figure includes an indoor unit 1 and a power supply box 2. The power supply box 2 is fixedly arranged on one side of the indoor unit 1. It further includes a housing 3, an external connection mechanism 4, a water pumping mechanism 5 and a sensing mechanism 6. The external connection mechanism 4 is fixedly arranged at one end of the housing 3. The water pumping mechanism 5 is fixedly arranged on one side inside the housing 3, and the water pumping mechanism 5 passes through the housing 3 and extends into the external connection mechanism 4. The sensing mechanism 6 includes a circuit board 60 and a detection component 61. The circuit board 60 is fixedly arranged on the other side inside the housing 3. The detection component 61 is fixedly arranged at one end of the circuit board 60, and the detection component 61 extends into the external connection mechanism 4.

[0044] Refer to Figure 5 The external connection mechanism 4 shown in the figure includes a heat preservation water tank 40, a PVC adapter 41 and a stainless steel filter screen 42. The heat preservation water tank 40 adopts low-temperature-resistant PVC technology and anti-aging XLPE heat preservation materials. The heat preservation water tank 40 is fixedly arranged at one end of the housing 3, and a water inlet channel 400 is arranged inside the heat preservation water tank 40. The PVC adapter 41 is fixedly arranged in the water inlet channel 400. The stainless steel filter screen 42 is clamped in the PVC adapter 41. The PVC adapter 41 adopts a soft connection self-sealing technology, without the need to use clamps or glue, and is convenient for disassembly when cleaning the stainless steel filter screen 42. The stainless steel filter screen 42 can effectively filter large-particle impurities, effectively resist water wave impact, and enhance the reliability of water level recognition.

[0045] Refer to Figures 6 to 7The detection component 61 shown includes a terminal block 610, a detection probe 611, a main probe 612, an auxiliary probe 613, and two physical probes 614. The terminal block 610 is fixedly arranged at one end of the circuit board 60. The terminal block 610 is a signal transmission area. The detection probe 611, the main probe 612, the auxiliary probe 613, and the two physical probes 614 are evenly and fixedly arranged on one side of the terminal block 610. The main probe 612 and the auxiliary probe 613 are located on one side of the detection probe 611, and the two physical probes 614 are located on the other side of the detection probe 611. The detection probe 611, the main probe 612, the auxiliary probe 613, and the two physical probes 614 all pass through the heat preservation water tank 40 and extend into the PVC adapter 41. When the condensed water contacts the detection probe 611, the detection probe 611 transmits the received information to the main probe 612. The main probe 612 converts this signal into an electrical signal and sends it to the control circuit board 60. The circuit board 60 turns on the switch of the water pump 52 for drainage operation. When the main probe 612 detects the liquid level signal and still can detect the liquid level signal after two drainages, the system circuit board 60 will turn off the signal of the main probe 612 and turn on the auxiliary probe 613 to continue receiving signal detection. When the auxiliary probe 613 detects the liquid level signal and still can detect the liquid level signal after completing the drainage process, the buzzer will be turned on to emit an alarm sound, indicating that there is a fault with the drainage pump. At the same time, when the main control chip in the main control board fails, as long as the switching power supply can still work normally, when the liquid level height reaches the physical alarm probe, the alarm can still be turned on to indicate the drainage pump failure.

[0046] Refer to Figure 7 and Figure 8 The water pumping mechanism 5 shown includes an extension pipe 50, a water inlet pipe 51, a water pump 52, a water outlet pipe 53, and a water outlet hose 54. The extension pipe 50 is for connecting the water inlet of the water pump and the heat preservation water tank 40. The water pump 52 is fixedly arranged on one side inside the outer housing 3. The water inlet pipe 51 is fixedly inserted into the water inlet end of the water pump 52. One end of the extension pipe 50 is fixedly inserted into one end of the water inlet pipe 51, and the other end of the extension pipe 50 is fixedly inserted into the heat preservation water tank 40 and extends into the PVC adapter 41. One end of the water outlet pipe 53 is fixedly inserted into the water outlet end of the water pump 52. One end of the water outlet hose 54 is fixedly inserted into the other end of the water outlet pipe 53, and the water outlet hose 54 extends outside the outer housing 3. A heat preservation layer 530 is attached to the top of the water outlet pipe 53. Under the suction of the water pump 52, the condensed water in the PVC adapter 41 enters the water pump 52 through the extension pipe 50 and the water inlet pipe 51, and flows into the water outlet hose 54 through the water outlet pipe 53 for discharge. The heat preservation layer 530 is for isolating the water outlet pipe 53 and the terminal block 610 to avoid liquefaction.

[0047] Refer to Figures 9 to 11The shown circuit board 60 is fixedly arranged on the other side inside the outer casing 3, and a power interface 600 is fixedly arranged on the top of the circuit board 60. One end of the power interface 600 is fixedly provided with a cable 601. The other end of the cable 601 is fixedly arranged on the outer edge of the indoor unit 1 through a plurality of fixing brackets, and the other end of the cable 601 is fixedly connected to the power supply box 2. The cable 601 is used to electrically connect the circuit board 60 with the external control power supply box 2, and the fixing brackets play a role in fixing and installing the cable 601.

[0048] On one side of the outer casing 3, four fixing holes 30 are symmetrically and fixedly arranged in pairs. The fixing holes 30 are used to fixedly arrange the outer casing 3 on the side of the indoor unit 1. A damping back plate 31 is fixedly arranged on one side of each fixing hole 30. The damping back plate 31 is made of IXPE damping material to buffer and eliminate the vibration interference of the indoor unit 1. An inner machine water outlet 10 is fixedly arranged on the outer side of the indoor unit 1. The inner machine water outlet 10 is meshed and sleeved in the PVC adapter 41. When the PVC adapter 41 is screwed onto the inner machine water outlet 10, there is no need to apply PVC glue on the surface of the pipe of the inner machine water outlet 10. This interface has self-sealing performance and is convenient for disassembly when cleaning the stainless steel filter screen 42.

[0049] Working principle:

[0050] Fix the lift pump on one side of the indoor unit 1 through the fixing holes 30 until the PVC adapter 41 is screwed onto the inner machine water outlet 10 until the installation surface of the outer casing 3 of the lift pump closely adheres to the sheet metal plane of the indoor unit 1, and the power interface 600 of the lift pump is vertically upward. When the condensed water of the indoor unit 1 enters the PVC adapter 41 through the inner machine water outlet 10 and passes through the stainless steel filter screen 42, after the detection probe 611 contacts the condensed water, the detection probe 611 transmits the received information to the main probe 612. The main probe 612 converts this signal into an electrical signal and sends it to the control circuit board 60. The circuit board 60 turns on the switch of the water pump 52. Under the suction force of the water pump 52, the condensed water in the PVC adapter 41 enters the water pump 52 through the extension pipe 50 and the water inlet pipe 51, and is discharged through the water outlet pipe 53 and into the water outlet hose 54. When the main probe 612 detects the liquid level signal and still detects the liquid level signal after two drainages, the system circuit board 60 will close the signal of the main probe 612 and turn on the auxiliary probe 613 to continue receiving signals for detection. When the auxiliary probe 613 detects the liquid level signal and still detects the liquid level signal after completing the drainage process, the buzzer will be turned on to emit an alarm sound, indicating that there is a fault with the drain pump. At the same time, when the main control chip in the main control board fails, as long as the switching power supply can still work normally and the liquid level reaches the physical alarm probe, the alarm can still be ensured to be turned on to indicate a fault with the water pump 52.

Claims

1. An intelligent electric drainage pump, comprising an indoor unit (1) and a power supply box (2), the power supply box (2) being fixedly arranged on one side of the indoor unit (1), characterized in that, It also includes a housing (3), an external connection mechanism (4), a water pumping mechanism (5) and a sensing mechanism (6). The external connection mechanism (4) is fixedly arranged at one end of the housing (3). The water pumping mechanism (5) is fixedly arranged on one side inside the housing (3), and the water pumping mechanism (5) passes through the housing (3) and extends into the external connection mechanism (4). The sensing mechanism (6) includes a circuit board (60) and a detection component (61). The circuit board (60) is fixedly arranged on the other side inside the housing (3). The detection component (61) is fixedly arranged at one end of the circuit board (60), and the detection component (61) extends into the external connection mechanism (4). The external connection mechanism (4) includes a heat preservation water tank (40), a PVC adapter (41) and a stainless steel filter screen (42). The heat preservation water tank (40) is fixedly arranged at one end of the housing (3), and a water inlet channel (400) is arranged inside the heat preservation water tank (40). The PVC adapter (41) is fixedly arranged inside the water inlet channel (400). The stainless steel filter screen (42) is clamped inside the PVC adapter (41). The water pumping mechanism (5) includes an extension pipe (50), a water inlet pipe (51), a water pump (52), a water outlet pipe (53) and a water outlet hose (54). The water pump (52) is fixedly arranged on one side inside the housing (3). The water inlet pipe (51) is fixedly inserted at the water inlet end of the water pump (52). One end of the extension pipe (50) is fixedly inserted at one end of the water inlet pipe (51), and the other end of the extension pipe (50) is fixedly inserted on the heat preservation water tank (40) and extends into the PVC adapter (41). An inner machine water outlet (10) is fixedly arranged on the outside of one side of the indoor unit (1), and the inner machine water outlet (10) is meshed and sleeved inside the PVC adapter (41).

2. The intelligent electric drainage pump according to claim 1, characterized in that, One end of the water outlet pipe (53) is fixedly inserted at the water outlet end of the water pump (52). One end of the water outlet hose (54) is fixedly inserted at the other end of the water outlet pipe (53), and the water outlet hose (54) extends outside the housing (3). A heat preservation layer (530) is attached to the top of the water outlet pipe (53).

3. An intelligent electric drainage pump according to claim 2, wherein, The circuit board (60) is fixedly arranged on the other side inside the housing (3), and a power interface (600) is fixedly arranged on the top of the circuit board (60). One end of the power interface (600) is fixedly provided with a cable (601). The other end of the cable (601) is fixedly arranged on the outer edge of the indoor unit (1) through a plurality of fixing brackets, and the other end of the cable (601) is fixedly connected to the power supply box (2).

4. An intelligent electric drainage pump according to claim 3, characterized in that, The detection component (61) includes a terminal block (610), a detection probe (611), a main probe (612), an auxiliary probe (613) and two physical probes (614). The terminal block (610) is fixedly arranged at one end of the circuit board (60). The detection probe (611), the main probe (612), the auxiliary probe (613) and the two physical probes (614) are uniformly fixedly arranged on one side of the terminal block (610).

5. An intelligent electric drainage pump according to claim 4, characterized in that, The main probe (612) and the auxiliary probe (613) are located on one side of the detection probe (611), and the two physical probes (614) are located on the other side of the detection probe (611). The detection probe (611), the main probe (612), the auxiliary probe (613) and the two physical probes (614) all pass through the insulation water tank (40) and extend into the PVC adapter (41).

6. The intelligent electric drainage pump according to claim 5, characterized in that, On one side of the outer housing (3), four fixing holes (30) are symmetrically and fixedly arranged in pairs, and a damping back plate (31) is fixedly arranged on one side of each fixing hole (30).

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