Ductless mobile air conditioner
By designing an alternating pump operation and a water storage tank overflow structure, the problem of easy pump damage was solved, the service life was extended and efficiency was improved, and noise was reduced, thus achieving efficient and quiet operation of the tubeless portable air conditioner.
Patent Information
- Application Number
- PCT/CN2025/087785
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-11
- Filing Date
- 2025-04-08
- Publication Date
- 2025-10-16
AI Technical Summary
The water pumps in existing tubeless portable air conditioners are prone to damage due to prolonged continuous operation, which affects their service life.
The water pump is designed to operate alternately with start-up and stop, and an overflow port and return pipe are installed in the water storage tank to adapt to the water drop speed and volume of the spray nozzles. Combined with the silent operation of the water pump motor, the working mode of the water pump is optimized.
It extends the service life of the water pump, improves working efficiency, saves energy, and reduces noise interference in silent mode.
Smart Images

Figure CN2025087785_16102025_PF_FP_ABST
Abstract
Description
Pipeless mobile air conditioner TECHNICAL FIELD
[0001] The present application relates to a pipeless mobile air conditioner. BACKGROUND
[0002] Chinese patent application publication CN 115468235 A discloses a pipeless mobile air conditioner, which utilizes the water heat absorption and evaporation principle, adopts a water spraying mode to the condenser, transfers the heat of the condenser to the water, and the water absorbs heat and evaporates to take away the heat, so as to reduce the temperature of the air discharged from the condenser, and even make the temperature of the air discharged from the condenser reach room temperature, thereby eliminating the need to set up an additional exhaust pipe to guide the air discharged from the condenser to the outdoor, and achieving the purpose of pipeless and easy to move.
[0003] In the above-mentioned prior art, a water spraying assembly is provided to spray water to the condenser, wherein the water spraying assembly comprises a water tank, a water pump and a spraying piece, the water pump is used to deliver water in the water tank to the spraying piece, the spraying piece is provided with a plurality of water outlets, and the spraying piece is arranged above the condenser so that the water discharged from the water outlets falls on the condenser.
[0004] However, the water pump is easy to be damaged if it continuously works for a long time. SUMMARY
[0005] The present application aims to provide a pipeless mobile air conditioner, which comprises a condenser and a water spraying assembly, the water spraying assembly comprises a water tank, a water pump and a spraying piece, the water pump is used to deliver water in the water tank to the spraying piece, the spraying piece is provided with a plurality of water outlets, and the spraying piece is arranged above the condenser so that the water discharged from the water outlets falls on the condenser; the pipeless mobile air conditioner comprises a normal working state; and the water pump is set to work alternately between starting and stopping in the normal working state.
[0006] The water pump is designed to work alternately between starting and stopping in the present application, which can guarantee the service life of the water pump. BRIEF DESCRIPTION OF DRAWINGS
[0007] Fig. 1 and Fig. 2 respectively show two different angle perspective views of the present application;
[0008] Fig. 3 shows a schematic view of partially disassembled machine shell;
[0009] Fig. 4 and Fig. 5 respectively show two different angle perspective views of partially hidden machine shell based on Fig. 3;
[0010] Fig. 6 shows a schematic view of disassembled components based on Fig. 5;
[0011] Fig. 7 shows a schematic view of the spraying piece, water receiving groove and water hitting assembly of the water spraying assembly based on Fig. 6;
[0012] Fig. 8 shows a front view with part of the casing hidden on the basis of Fig. 3;
[0013] Fig. 9 shows a right view with part of the casing hidden on the basis of Fig. 3;
[0014] Figs. 10 and 11 show perspective views of the condenser, the evaporator and the air supply mechanism therebetween from two different angles, respectively;
[0015] Fig. 12 shows a schematic view with the components exploded on the basis of Fig. 11;
[0016] Fig. 13 shows a top view on the basis of Fig. 10;
[0017] Fig. 14 shows an exploded view of the cross-flow fan.
[0018] Fig. 14 shows an exploded view of the cross-flow fan. DETAILED DESCRIPTION
[0019] The present application will be further described in conjunction with the accompanying drawings.
[0020] As shown in Figs. 1-9
[0021] A pipeless mobile air conditioner comprises a condenser 10 and a water sprinkling assembly, which comprises a water tank 90, a water pump 901 for delivering water in the water tank 90 to a water sprinkling member 70, and the water sprinkling member 70 provided with a plurality of water outlet holes 701 and arranged above the condenser 10 so that water droplets discharged from the water outlet holes 701 fall on the condenser 10.
[0022] The pipeless mobile air conditioner comprises a normal working state.
[0023] The water pump 901 is arranged to work alternately between starting and stopping (i.e. not starting) in the normal working state.
[0024] The technical solution of alternately starting and stopping the water pump can guarantee the service life of the water pump.
[0025] The sprinkling piece 70 comprises a water storage tank, and the water outlet hole 701 is arranged at the bottom of the water storage tank. The technical scheme can collect water pumped from the water pump, so that the starting and stopping of the water pump can adapt to the falling speed of the sprinkling piece and the amount of collected water to work, thereby ensuring the working efficiency and saving electric energy. In the embodiment, an overflow port (not shown in the figure) is arranged in the water storage tank, and the overflow port of the water storage tank is communicated with the water tank 90 through a backflow pipeline, so that when the water in the water storage tank is too high, the water can flow back to the water tank 90 from the overflow port through the backflow pipeline.
[0026] The pipeless mobile air conditioner further comprises a water hitting assembly and a water receiving tank 20 arranged below the condenser 10 to receive water falling through the condenser 10, and the water hitting assembly is arranged to hit water in the water receiving tank 20 out of the condenser 10, and the water hitting assembly comprises a water hitting motor 30 and a water hitting flywheel 40 driven by the water hitting motor 30.
[0027] The pipeless mobile air conditioner further comprises a silent working state.
[0028] The water hitting motor is arranged to be always stopped (i.e. not started) in the silent working state. The technical scheme can improve the flexibility of use, especially at night, by selecting the silent working state to avoid affecting the sleep of the user.
[0029] The casing 50 of the pipeless mobile air conditioner is provided with an upper layer 501, a middle layer 502 and a lower layer 503 spaced from each other, wherein the upper layer 501, the middle layer 502 and the lower layer 503 are distributed from top to bottom.
[0030] The condenser 10, the air blowing mechanism, the evaporator 60, the sprinkling piece 70 of the water sprinkling assembly, the water receiving tank 20 and the water hitting assembly are arranged in the upper layer 501.
[0031] The compressor 80 is arranged in the middle layer 502.
[0032] The water tank 90 is arranged in the lower layer 503.
[0033] The technical scheme has a reasonable structure space layout. In the embodiment, the water pump of the water sprinkling assembly can deliver water in the water tank 90 to the sprinkling piece 70 arranged in the upper layer 501. The water receiving tank 20 is also provided with an overflow port (not shown in the figure), and the overflow port of the water receiving tank is also communicated with the water tank 90 through a backflow pipeline, so that when the water in the water receiving tank 20 is too high, the water can flow back to the water tank 90 from the overflow port through the backflow pipeline.
[0034] The water receiving tank 20 is provided with a water level detector (not shown in the figure) for detecting whether the water level in the water receiving tank 20 reaches a preset minimum working water level, and the water pumping motor 30 stops (i.e. does not start) when the water level in the water receiving tank is lower than the minimum working water level. In this way, the situation of the motor being in an empty load can be avoided, the risk of the motor being damaged can be reduced, the service life of the motor can be ensured, and the effect of reducing noise can be achieved. The water level detector can be of the prior art, and thus will not be described here.
[0035] The water pump 901 starts at time t1 and stops at time t2, i.e. the water pump 901 stops t2 after starting for t1, and then works periodically and alternately. Wherein t1 is 5 to 30 seconds, and t2 is 10 to 60 seconds. The technical solution is reasonable, so that the water pump 901 can adapt to the speed of the falling water of the spraying member and the amount of collected water to work.
[0036] As shown in Figures 10 to 14, the condenser 10 is arranged opposite to the evaporator 60, and the air blowing mechanism is arranged between the evaporator 30 and the condenser 10;
[0037] The air blowing mechanism includes two groups of cross-flow fans 100 inserted and standing between the evaporator 60 and the condenser 10, so that the cross-flow fans 100 form a standing arrangement;
[0038] Each cross-flow fan 100 includes a fan housing 101, a fan wheel 102 and a motor 103, the fan wheel 102 and the motor 103 are both mounted on the fan housing 101, the fan wheel 102 is connected with the output shaft of the motor 103, the fan housing 101 has an air inlet 104 and an air outlet 105, the air inlet 104 and the air outlet 105 are both in the shape of a long strip, and the fan wheel 102 is in the shape of a long cylinder;
[0039] The air inlets 104 of one group of cross-flow fans 100 face the evaporator 60, and the air inlets 104 of the other group of cross-flow fans 100 face the condenser 10.
[0040] The technical solution adopts cross-flow fans for exhausting air from the condenser and the evaporator, which not only can reduce the occupied space but also can reduce the working noise, and the standing arrangement of the cross-flow fans can improve the exhaust efficiency.
[0041] The air duct shells 101 of the two groups of cross-flow fans are connected into one body to separate the evaporator 60 and the condenser 10, thereby reducing the mutual influence of heat exchange between the evaporator and the condenser, and especially reducing the high-temperature air flow on the side of the condenser from entering the side of the evaporator. In the embodiment, the air duct shells 101 of the two groups of cross-flow fans are connected into one body by means of an intermediate connecting plate 106, wherein the intermediate connecting plate 106 is located between the air duct shells 101 of the two groups of cross-flow fans, and the two sides of the intermediate connecting plate 106 are connected with the air duct shells 101 of one group of cross-flow fans respectively. The technical scheme is reasonable in design and convenient to implement.
[0042] The front surface of the casing 50 of the ductless mobile air conditioner is provided with an evaporator air outlet 504, and the back surface of the casing 50 is provided with a condenser air outlet 505;
[0043] The air inlet 104 is directed towards the air outlet 105 of the cross-flow fan of the evaporator 60, and especially the air inlet 104 is directed towards the evaporator air outlet 504 of the casing 50 of the ductless mobile air conditioner.
[0044] The air inlet 104 is directed towards the air outlet 105 of the cross-flow fan of the condenser 10, and especially the air inlet 104 is directed towards the condenser air outlet 505 of the back surface of the casing 50 of the ductless mobile air conditioner.
Claims
1. A ductless portable air conditioner comprising a condenser and a water shower assembly, the water shower assembly comprising a water tank, a water pump, and a shower element. The water pump is used to transport water in the water tank to the shower element. The shower element is provided with a plurality of water outlets. The shower element is located above the condenser so that water discharged from the water outlets falls on the condenser. The invention is characterized in that: The ductless mobile air conditioner includes a normal working state; The water pump is configured to operate alternately between starting and stopping under normal working conditions.
2. The ductless mobile air conditioner according to claim 1, characterized in that: The shower component comprises a water storage tank, and a water outlet is arranged at the bottom of the water storage tank.
3. The ductless mobile air conditioner according to claim 1, characterized in that: The ductless portable air conditioner further includes a water pumping assembly and a water receiving trough. The water receiving trough is provided below the condenser to receive water that has passed through the condenser. The water pumping assembly is configured to eject the water in the water receiving trough to the condenser. The water pumping assembly includes a water pumping motor and a water pumping flywheel driven by the water pumping motor. The ductless mobile air conditioner also includes a silent working state; The water pumping motor is set to always stop in the silent working state.
4. The ductless mobile air conditioner according to claim 3, characterized in that: The casing of the ductless mobile air conditioner is provided with an upper layer, a middle layer and a lower layer spaced apart from each other, wherein the upper layer, the middle layer and the lower layer are distributed from top to bottom; The condenser, air supply mechanism, evaporator, sprinkler components, water receiving trough and water supply components are arranged on the upper layer; The compressor is located in the middle layer; The water tank is located on the lower level.
5. The ductless mobile air conditioner according to claim 3, characterized in that: A water level detector is provided in the water receiving tank, which is used to detect whether the water level in the water receiving tank has reached a preset minimum working water level. The pumping motor stops when the water level in the water receiving tank is lower than the minimum working water level.
6. The ductless mobile air conditioner according to claim 1, characterized in that: The water pump starts at t1 and stops at t2, wherein t1 is 5 seconds to 30 seconds and t2 is 10 seconds to 60 seconds.
7. The ductless mobile air conditioner according to any one of claims 1 to 6, characterized in that: The condenser and the evaporator are arranged opposite to each other, and an air supply mechanism is provided between the evaporator and the condenser; The air supply mechanism includes two sets of cross-flow fans inserted and standing between the evaporator and the condenser; Each crossflow fan includes an air duct housing, a wind wheel and a motor. The wind wheel and the motor are both mounted on the air duct housing. The wind wheel is connected to the output shaft of the motor. The air duct housing has an air inlet and an air outlet. The air inlet and the air outlet are both long strips. The wind wheel is long cylindrical. The air inlet of one group of cross-flow fans faces the evaporator, and the air inlet of the other group of cross-flow fans faces the condenser.
8. The ductless mobile air conditioner according to claim 7, characterized in that: The air duct shells of the two groups of cross-flow fans are connected to each other as a whole to separate the evaporator and the condenser.
9. The ductless mobile air conditioner according to claim 8, characterized in that: The air duct casings of the two groups of cross-flow fans are connected into one by means of an intermediate connecting plate, wherein the intermediate connecting plate is located between the air duct casings of the two groups of cross-flow fans, and both sides of the intermediate connecting plate are respectively connected to the air duct casing of one group of cross-flow fans.
10. The ductless mobile air conditioner according to claim 7, characterized in that: The air inlet of the cross-flow fan is directed toward the evaporator, and the air outlet of the cross-flow fan is directed toward the front of the casing of the ductless mobile air conditioner; The air inlet of the cross-flow fan faces the condenser, and the air outlet of the cross-flow fan faces the back of the casing of the ductless mobile air conditioner.
Citation Information
Patent Citations
Window air conditioner and control method thereof
CN114294724A
Non-pipe type mobile air conditioner
CN115468235A
Water pump control method and device, household appliance and storage medium
CN116105357A
Non-pipe type mobile air conditioner
CN118258064A
Mobile air-conditioner
CN200943914Y
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