Mobile air conditioner and control method thereof

Abstract

The invention discloses a movable air conditioner and a control method thereof. The movable air conditioner comprises a machine body, a refrigerant circulation loop, a water tank, a water fetching motor, a low water level switch, an upper fan, a lower fan, a first distance measuring assembly, a second distance measuring assembly and a controller. The controller is configured to determine the inclination angle of the mobile air conditioner according to the first distance and the second distance when the mobile air conditioner is in a refrigeration or dehumidification mode; the operation frequency of the compressor, the rotating speed of the water fetching motor and the rotating speeds of the upper fan and the lower fan are controlled according to the inclination angle and the closing state of the low-water-level switch, condensate water in the water tank is prevented from overflowing, the compressor is prevented from being damaged, and therefore the safety risk of the movable air conditioner is reduced, and user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile air conditioners, and in particular to a mobile air conditioner and a control method thereof. Background Art

[0002] Mobile air conditioners, as a kind of electrical product that can be moved at will, are widely used in people's daily life. They can be used in the living room, bedroom, bathroom, kitchen or basement. They play an important role in regulating indoor temperature and can provide users with a healthy and comfortable indoor environment to meet normal work, life and study needs.

[0003] At present, when the mobile air conditioner operates in cooling or dehumidification mode for a period of time, condensed water will be generated in the water tank located on the lower side of the mobile air conditioner body, and then the condensed water will be dispersed into the condenser for evaporation through the water pumping motor, so as to avoid the condensed water from accumulating too much and overflowing from the body.

[0004] However, in actual use, most environmental water tanks will accumulate a lot of condensed water. Even with a water pumping motor, the evaporation rate of condensed water is slower than the condensation rate of the evaporator. If the user tries to move the air conditioner to another location for cooling or dehumidification without turning off the power, and the position during the movement or the position where it is placed forms a certain angle with the horizontal plane, the body will be tilted, and the condensed water in the water tank will randomly deviate to one side, which can easily cause the condensed water to overflow to the outside of the body and flow to the ground, and easily damage the compressor. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the present invention is to provide a mobile air conditioner and a control method thereof.

[0006] A mobile air conditioner proposed by the present invention includes: a body; a refrigerant circulation circuit disposed in the body, the refrigerant circulation circuit enabling the refrigerant to circulate in a circuit composed of a compressor, a condenser, an expansion valve, an evaporator, a four-way valve, and a pressure reducer; the compressor is used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; a water tank disposed in the body, the water tank is used to collect the condensed water generated by the operation of the evaporator; a water spraying motor disposed in the body, the water spraying motor is used to spray the condensed water in the water tank onto the condenser; a low water level switch disposed in the water tank, the low water level switch is used to close when the water level of the condensed water reaches a water level threshold for characterizing the low water level, or to disconnect when the water level of the condensed water does not reach the water level threshold; an upper blower disposed in the body, the upper blower is used to adjust the temperature of the evaporator; a lower blower disposed in the body, the lower blower is used to adjust the temperature of the condenser; a first distance measuring component disposed at the first end of the upper surface of the body, the first distance measuring component is perpendicular to the upper surface of the body and is disposed upwardly facing the body, the first distance measuring component is used to detect a first distance between the upper surface of the body and the top of the room; a second distance measuring component disposed at the second end of the upper surface of the body, the second distance measuring component is perpendicular to the upper surface of the body and is disposed upwardly facing the body, the second distance measuring component is used to detect a second distance between the upper surface of the body and the top of the room; a controller, the controller is configured to: when the mobile air conditioner is in a cooling or dehumidifying mode, determine the tilt angle of the mobile air conditioner according to the first distance and the second distance; control the operating frequency of the compressor, the rotation speed of the water spraying motor, the rotation speeds of the upper blower and the lower blower according to the tilt angle and the closed state of the low water level switch.

[0007] In addition, the mobile air conditioner according to an embodiment of the present invention may further have the following additional technical features:

[0008] Further, when determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the controller is specifically configured to execute the following formula:

[0009]

[0010] Wherein, α is the tilt angle of the mobile air conditioner, d1 is the first distance, d2 is the second distance, and d is a preset distance.

[0011] Further, when determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the controller is specifically configured to: acquire the first distance and the second distance multiple times at intervals of a first preset time; determine multiple first tilt angles corresponding to the multiple first distances and the multiple second distances; and use the average value of the multiple first tilt angles as the tilt angle of the mobile air conditioner.

[0012] Further, when controlling the operating frequency of the compressor, the rotational speed of the water pumping motor, the rotational speeds of the upper blower and the lower blower according to the tilt angle and the closed state of the low water level switch, the controller is specifically configured to: when the tilt angle is greater than a first preset angle and not greater than a second preset angle, and the low water level switch is in a closed state, execute a first control strategy, where the first control strategy includes: controlling the compressor to operate at a first preset frequency, controlling the upper blower and the lower blower to rotate at a first preset rotational speed, and controlling the water pumping motor to operate at a second preset rotational speed, and after a second preset time elapses, return to execute the step of determining the tilt angle of the mobile air conditioner according to the first distance and the second distance; where the first preset angle is less than the second preset angle; when the tilt angle is greater than the second preset angle and not greater than a third preset angle, and the low water level switch is in an open state, execute the first control strategy; where the second preset angle is less than the third preset angle; when the tilt angle is greater than the second preset angle and not greater than the third preset angle, and the low water level switch is in a closed state, execute a second control strategy, where the second control strategy includes: controlling the compressor to stop, controlling the upper blower to stop, controlling the lower blower to rotate at a third preset rotational speed, and controlling the water pumping motor to operate at a fourth preset rotational speed, and after a third preset time elapses, control the lower blower and the water pumping motor to stop operating; where the third preset rotational speed is greater than the first preset rotational speed, and the fourth preset rotational speed is greater than the second preset rotational speed; when the tilt angle is greater than the third preset angle, execute a third control strategy, where the third control strategy includes: controlling the compressor to stop, controlling the upper blower, the lower blower, and the water pumping motor to stop operating, and controlling the power supply of the mobile air conditioner to be disconnected.

[0013] Further, after executing the first control strategy, the controller is further configured to: issue a first prompt message for indicating that the mobile air conditioner enters a first tilt state.

[0014] Further, after executing the second control strategy, the controller is further configured to: issue a second prompt message for indicating that the mobile air conditioner enters a second tilt state.

[0015] Further, after executing the third control strategy, the controller is further configured to: issue third prompt information for instructing the mobile air conditioner to enter a third tilted state.

[0016] Further, before determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the controller is further configured to: determine whether the first distance and the second distance are valid; when it is determined that the first distance and the second distance are valid, use the first distance and the second distance to determine the tilt angle of the mobile air conditioner; when it is determined that the first distance and the second distance are invalid, issue fourth prompt information for indicating that the upper surface of the body is blocked.

[0017] Further, the controller is specifically configured to: when it is determined that the first distance and the second distance are valid, the controller is specifically configured to: when both the first distance and the second distance are not less than a preset distance, determine that the first distance and the second distance are valid; when the first distance and / or the second distance is less than the preset distance, determine that the first distance and the second distance are invalid.

[0018] According to the mobile air conditioner of the embodiment of the present invention, when the mobile air conditioner is in a refrigeration or dehumidification mode and changes its position, the distance value can be obtained through the ranging component, and the tilt angle of the current mobile air conditioner can be obtained according to the preset algorithm. Furthermore, according to the tilt angle of the current mobile air conditioner and the closed state of the low water level switch, the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper fan and the lower fan are controlled, so as to avoid the overflow of condensed water in the water tank and damage to the compressor, thereby reducing the safety risk of the mobile air conditioner and improving the user experience.

[0019] In view of the above problems, the present invention further provides a control method for a mobile air conditioner, which is used for the mobile air conditioner as described in any of the above embodiments. The method includes the following steps: when the mobile air conditioner is in a refrigeration or dehumidification mode, determine the tilt angle of the mobile air conditioner according to the first distance and the second distance; control the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper fan and the lower fan according to the tilt angle and the closed state of the low water level switch.

[0020] According to the control method of the mobile air conditioner of the embodiment of the present invention, when the mobile air conditioner is in a refrigeration or dehumidification mode and changes its position, the distance value can be obtained through the ranging component, and the tilt angle of the current mobile air conditioner can be obtained according to the preset algorithm. Furthermore, according to the tilt angle of the current mobile air conditioner and the closed state of the low water level switch, the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper fan and the lower fan are controlled, so as to avoid the overflow of condensed water in the water tank and damage to the compressor, thereby reducing the safety risk of the mobile air conditioner and improving the user experience.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic structural diagram of a mobile air conditioner according to an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of a mobile air conditioner according to another embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the principle for determining the tilt angle of a mobile air conditioner according to an embodiment of the present invention;

[0026] Figure 4 is a flowchart for determining the tilt angle of a mobile air conditioner according to an embodiment of the present invention;

[0027] Figure 5 is a control flowchart of a mobile air conditioner according to an embodiment of the present invention;

[0028] Figure 6 is a control flowchart of a mobile air conditioner according to another embodiment of the present invention;

[0029] Figure 7 is a control flowchart of a mobile air conditioner according to another embodiment of the present invention;

[0030] Figure 8 is a flowchart of a control method of a mobile air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plural" is two or more.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, the mobile air conditioner 1 performs the refrigeration cycle of the mobile air conditioner 1 by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0036] The compressor compresses the refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0037] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by using the latent heat of evaporation of the refrigerant to perform heat exchange with the material to be cooled. Throughout the cycle, the mobile air conditioner 1 can adjust the temperature of the indoor space.

[0038] In the embodiment shown in the present application, the mobile air conditioner 1 includes a controller 71, which refers to a device that can generate operation control signals according to instruction operation codes and timing signals to instruct the mobile air conditioner 1 to execute control instructions. For example, in response to the power-on or power-off instruction issued by the user received, the controller 71 can perform operations related to the object selected by the power-on or power-off instruction.

[0039] The embodiment of the present application further provides a schematic diagram of the hardware structure of the controller 71, as Figure 1 shown. The controller 71 includes a processor 83. Optionally, it further includes a memory 82 and a communication interface 84 connected to the processor 83. The processor 83, the memory 82, and the communication interface 84 are connected through a bus 81.

[0040] The processor 83 can be a central processing unit 83 (CPU), a general-purpose processor 83, a network processor 83 (NP), a digital signal processor 83 (DSP), a microprocessor 83, a microcontroller 83, a programmable logic device (PLD), or any combination thereof. The processor 83 can also be any other device with processing functions, such as a circuit, a device, or a software module. The processor 83 can also include multiple CPUs, and the processor 83 can be a single-core (SINGLE CPU) processor 83 or a multi-core (MULTI CPU) processor 83. Here, the processor 83 can refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0041] The memory 82 can be a read-only memory 82 (ROM), or other types of static storage devices that can store static information and instructions, a random access memory 82 (RAM), or other types of dynamic storage devices that can store information and instructions. It can also be an electrically erasable programmable read-only memory 82 (EEPROM), a compact disc read-only memory (CDROM), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer. The embodiments of the present application do not impose any restrictions on this. The memory 82 can exist independently or be integrated with the processor 83. Among them, the memory 82 can contain computer program code. The processor 83 is used to execute the computer program code stored in the memory 82, so as to implement the control method of the mobile air conditioner 1 provided by the embodiments of the present application.

[0042] The communication interface 84 can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.). The communication interface 84 can be a module, a circuit, a transceiver, or any device capable of implementing communication.

[0043] The bus 81 can be a peripheral component interconnect (PCI) bus 81 or an extended industry standard architecture (EISA) bus 81, etc. The bus 81 can be divided into an address bus 81, a data bus 81, a control bus 81, etc.

[0044] Next, refer to Figures 2 - 8 Describe the mobile air conditioner 1 and its control method according to the embodiments of the present invention.

[0045] Figure 2 is a schematic structural diagram of the mobile air conditioner 1 according to an embodiment of the present invention. As Figure 2As shown, a mobile air conditioner 1 includes: a body 11, a refrigerant circulation circuit 12, a water tank 13, a water spraying motor 14, a low water level switch 15, an upper blower 16, a lower blower 17, a first distance measuring component 18, a second distance measuring component 19, and a controller 71. Among them, the refrigerant circulation circuit 12 is arranged inside the body 11, and the refrigerant circulation circuit 12 circulates the refrigerant in a circuit composed of a compressor, a condenser, an expansion valve, an evaporator, a four-way valve, and a pressure reducer; the compressor is used to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge it to the condenser; the water tank 13 is arranged inside the body 11, and the water tank 13 is used to collect the condensed water generated by the operation of the evaporator; the water spraying motor 14 is arranged inside the body 11, and the water spraying motor 14 is used to spray the condensed water in the water tank 13 onto the condenser; the low water level switch 15 is arranged in the water tank 13, and the low water level switch 15 is used to close when the water level of the condensed water reaches the water level threshold for representing the low water level, or to disconnect when the water level of the condensed water does not reach the water level threshold; the upper blower 16 is arranged inside the body 11, and the upper blower 16 is used to adjust the temperature of the evaporator; the lower blower 17 is arranged inside the body 11, and the lower blower 17 is used to adjust the temperature of the condenser; the first distance measuring component 18 is arranged at the first end of the upper surface of the body 11, the first distance measuring component 18 is perpendicular to the upper surface of the body 11 and is arranged facing upward of the body 11, and the first distance measuring component 18 is used to detect the first distance between the upper surface of the body 11 and the top of the room; the second distance measuring component 19 is arranged at the second end of the upper surface of the body 11, the second distance measuring component 19 is perpendicular to the upper surface of the body 11 and is arranged facing upward of the body 11, and the second distance measuring component 19 is used to detect the second distance between the upper surface of the body 11 and the top of the room; the controller 71 is configured to: when the mobile air conditioner 1 is in the cooling or dehumidifying mode, determine the tilt angle of the mobile air conditioner 1 according to the first distance and the second distance; control the operating frequency of the compressor, the rotation speed of the water spraying motor 14, and the rotation speeds of the upper blower 16 and the lower blower 17 according to the tilt angle and the closed state of the low water level switch 15.

[0046] Specifically, in combination with Figure 2 and Figure 3As shown, the operating states of the mobile air conditioner 1 include refrigeration or heating operation, etc. When operating in the refrigeration or dehumidification mode, the controller 71 can detect the first distance d1 between the upper surface of the body 11 and the top of the room and the second distance d2 between the upper surface of the body 11 and the top of the room according to the first ranging component 18 and the second ranging component 19 provided at the first end and the second end of the upper surface of the body 11, and then determine the tilt angle α of the mobile air conditioner 1 according to the first distance and the second distance. Specifically, if the first distance and the second distance are equal, it means that the body 11 is horizontal and not tilted; if the two distances are not equal, the tilt angle of the current body 11 can be calculated through a preset algorithm. Further, the operating frequency of the compressor, the rotation speed of the water pumping motor 14, and the rotation speeds of the upper blower 16 and the lower blower 17 can be controlled according to the tilt angle and the closed state of the low water level switch 15. For example, if the tilt angle of the body 11 is too large and the amount of water in the water tank 13 is too much, it means that there may be a safety hazard. At this time, the operating frequency of the compressor can be reduced or the compressor can be stopped to prevent the condensed water in the water tank 13 from flowing to the ground due to the tilt of the body 11, and even the internal components of the compressor may be damaged after a large tilt angle, causing losses to the user; at the same time, the rotation speed of the water pumping motor 14 can be increased to increase the consumption of water, and the rotation speed of the lower blower 17 can be increased to accelerate the evaporation of the condensed water, so as to avoid the overflow of the condensed water in the water tank 13 and the damage of the compressor, reduce the safety risk of the mobile air conditioner 1, and improve the user experience.

[0047] In a specific embodiment, the first ranging component 18 and the second ranging component 19 can be infrared ranging sensors. It can be understood that the infrared ranging sensor has a pair of infrared signal transmitting devices and receiving diodes. When measuring the distance, the infrared signal transmitting device emits a beam of infrared light, which can form a reflection process after irradiating an object. The reflected infrared light is received by the diode, and then the data of the time difference between the emission and reception is processed by using CCD image processing, and then the first distance and the second distance are calculated after being processed by the signal processor. It should be noted that an infrared ranging sensor (i.e., the first ranging component 18 and the second ranging component 19) can be placed at each of the left and right ends of the display panel on the upper part of the body 11 of the mobile air conditioner 1, and the infrared signal transmitting device of the infrared ranging sensor is perpendicular to the display panel and faces upward of the body 11, so that the infrared light emitted by it shoots towards the top of the house.

[0048] In an embodiment of the present invention, when determining the tilt angle of the mobile air conditioner 1 according to the first distance and the second distance, the controller 71 is specifically configured to execute the following formula:

[0049]

[0050] Wherein, α is the tilt angle of the mobile air conditioner 1, d 1is the first distance, d 2 is the second distance, and d is a preset distance.

[0051] Specifically, in combination with Figure 3 as shown, the current tilt angle of the mobile air conditioner 1 can be determined according to the above specific formula, |d 1 - d 2 | is the absolute value of the difference between the first distance and the second distance. When the mobile air conditioner 1 tilts due to encountering a slope, the first distance and the second distance change, which can be denoted as d3 and d4. The absolute value of the difference between the two is denoted as Y for example, and is used to represent the offset between the distances from the first distance measuring component 18 and the second distance measuring component 19 to the top of the room in the direction perpendicular to the slope; d is a preset distance, and this preset distance can be adjusted according to the length of the connection line between the first distance measuring component 18 and the second distance measuring component 19. It can be understood that the connection line between the first distance measuring component 18 and the second distance measuring component 19 is arranged parallel to the boundary of the upper surface of the machine body 11, and tanα is the tangent value of the tilt angle α. By dividing the absolute value Y of the difference between the first distance and the second distance by the preset distance d, the tangent value of the tilt angle α can be obtained. Through the above formula, the tilt angle of the mobile air conditioner 1 can be calculated, so as to better understand the current tilt state of the mobile air conditioner 1 and perform corresponding control.

[0052] In an embodiment of the present invention, when determining the tilt angle of the mobile air conditioner 1 according to the first distance and the second distance, the controller 71 is specifically configured to: obtain the first distance and the second distance multiple times at intervals of a first preset time; determine multiple first tilt angles corresponding to the multiple first distances and the multiple second distances; and use the average value of the multiple first tilt angles as the tilt angle of the mobile air conditioner 1.

[0053] Specifically, when the mobile air conditioner shakes (tilts) and then returns to the horizontal position in a short time due to a collision, at this time, there is no need to control the operating frequency of the compressor, the rotation speed of the water pumping motor 14, and the rotation speeds of the upper blower 16 and the lower blower 17 according to the tilt angle and the closed state of the low water level switch 15, so as to avoid frequently adjusting the operating state of the mobile air conditioner 1 in a short time and reduce the operating stability of the mobile air conditioner 1. Therefore, in the embodiment of the present invention, when determining the tilt angle of the mobile air conditioner 1 according to the first distance and the second distance, the first distance and the second distance are obtained multiple times at intervals of a first preset time, multiple first tilt angles are determined corresponding to the multiple first distances and the multiple second distances, and the average value of the multiple first tilt angles is used as the tilt angle of the mobile air conditioner 1 to improve the operating stability of the mobile air conditioner 1.

[0054] In a specific embodiment, in combination with Figure 4As shown, when the mobile air conditioner 1 operates in the cooling mode or the dehumidifying mode and determines the current tilt angle, every first preset time, the controller 71 can issue an instruction to cause the first ranging component 18 and the second ranging component 19 to measure a plurality of first distances and second distances between the upper surface of the body 11 and the top of the room respectively, and send the measured plurality of first distance values and second distance values back to the controller 71. The controller 71 can calculate a plurality of corresponding first tilt angles of the mobile air conditioner 1 according to a preset function algorithm, then sum and average the obtained plurality of first tilt angles, and use the average value as the tilt angle of the mobile air conditioner 1. Furthermore, the operating state of the mobile air conditioner 1 can be controlled according to the tilt angle of the mobile air conditioner 1, such as adjusting the operating frequency of the compressor, the rotation speed of the water injection motor 14, the rotation speeds of the upper blower 16 and the lower blower 17, etc., to avoid the overflow of condensed water in the water tank 13 and the damage of the compressor, reduce the safety risk of the mobile air conditioner 1, and improve the user experience.

[0055] It should be noted that the first preset time is a value preset according to the actual situation and experimental data, including but not limited to 5 seconds. The plurality of first distances and second distances can be d1, d2, d3, d4. It can be understood that by presetting the first preset time, the stability of the operation of the mobile air conditioner 1 can be improved when the mobile air conditioner 1 is tilted due to vibration in a short time.

[0056] In an embodiment of the present invention, when controlling the operating frequency of the compressor, the rotational speed of the water pump motor 14, and the rotational speeds of the upper blower 16 and the lower blower 17 according to the tilt angle and the closed state of the low water level switch 15, the controller 71 is specifically configured as follows: When the tilt angle is greater than a first preset angle and not greater than a second preset angle, and the low water level switch 15 is in the closed state, execute a first control strategy, the first control strategy including: controlling the compressor to operate at a first preset frequency, controlling the upper blower 16 and the lower blower 17 to rotate at a first preset rotational speed, and controlling the water pump motor 14 to operate at a second preset rotational speed, and after a second preset time, return to execute the step of determining the tilt angle of the mobile air conditioner 1 according to the first distance and the second distance; wherein, the first preset angle is less than the second preset angle; When the tilt angle is greater than the second preset angle and not greater than a third preset angle, and the low water level switch 15 is in the open state, execute the first control strategy; wherein, the second preset angle is less than the third preset angle; When the tilt angle is greater than the second preset angle and not greater than a third preset angle, and the low water level switch 15 is in the closed state, execute a second control strategy, the second control strategy including: controlling the compressor to stop, controlling the upper blower 16 to stop, controlling the lower blower 17 to rotate at a third preset rotational speed, and controlling the water pump motor 14 to operate at a fourth preset rotational speed, and after a third preset time, controlling the lower blower 17 and the water pump motor 14 to stop operating; wherein, the third preset rotational speed is greater than the first preset rotational speed, and the fourth preset rotational speed is greater than the second preset rotational speed; When the tilt angle is greater than the third preset angle, execute a third control strategy, the third control strategy including: controlling the compressor to stop, controlling the upper blower 16, the lower blower 17, and the water pump motor 14 to stop operating, and controlling the power supply of the mobile air conditioner 1 to be disconnected.

[0057] Specifically, in combination with Figure 5As shown, after determining the current tilt angle of the mobile air conditioner 1, the operating frequency of the compressor, the rotational speed of the water pumping motor 14, and the rotational speeds of the upper fan 16 and the lower fan 17 can be adjusted according to the comparison result between the tilt angle of the mobile air conditioner 1 and the preset angle and the state of the low water level switch 15. Specifically, when the tilt angle is greater than the first preset angle, less than the second preset angle, and the low water level switch 15 is in the closed state, it is considered that the tilt angle of the mobile air conditioner 1 is small, the condensate water in the water tank 13 is less, and the risk of condensate water overflow is low. At this time, the mobile air conditioner 1 is controlled to execute the first control strategy, that is, the compressor operates at the first preset frequency to reduce the refrigeration capacity of the mobile air conditioner 1 and reduce the generation of condensate water. At the same time, the upper fan 16 and the lower fan 17 rotate at the first preset rotational speed, and the water pumping motor 14 operates at the second preset rotational speed to accelerate the evaporation of the condensate water. After the time for controlling the mobile air conditioner 1 to execute the above first control strategy reaches the second preset time, it is considered that the condensate water will not overflow. At this time, the step of determining the tilt angle according to the first distance and the second distance is returned to, and the mobile air conditioner 1 is controlled again according to the tilt angle of the mobile air conditioner 1 and the closed state of the low water level switch 15, so as to avoid the overflow of condensate water in the water tank 13 and the damage of the compressor, and reduce the safety risk of the mobile air conditioner 1.

[0058] In some other embodiments, when the tilt angle is greater than the second preset angle, not greater than the third preset angle, and the low water level switch 15 is in the open state, it is considered that although the tilt angle of the mobile air conditioner 1 is large, the condensate water in the water tank 13 is very little, and the risk of condensate water overflow is still low. At this time, the mobile air conditioner 1 is still controlled to execute the first control strategy, which will not be elaborated here.

[0059] In some other embodiments, when the tilt angle is greater than the second preset angle, not greater than the third preset angle, and the low water level switch 15 is in the closed state, it is considered that the tilt angle of the mobile air conditioner 1 is large, the condensate water in the water tank 13 is more, and the risk of condensate water overflow is high. At this time, the mobile air conditioner 1 is controlled to execute the second control strategy, that is, the compressor is controlled to stop to stop the generation of condensate water, the upper fan 16 is controlled to stop, the lower fan 17 is controlled to rotate at the third preset rotational speed, and the water pumping motor 14 is controlled to operate at the fourth preset rotational speed to accelerate the evaporation of the condensate water and avoid excessive condensate water. After the time for controlling the mobile air conditioner 1 to execute the above second control strategy reaches the third preset time, it is considered that the risk of condensate water overflow in the water tank 13 is low. However, due to the large tilt angle at this time, if the mobile air conditioner 1 continues to work, the safety risk is high. Therefore, the lower fan 17 and the water pumping motor 14 are controlled to stop running, that is, the whole machine of the mobile air conditioner 1 is controlled to stop for protection.

[0060] In some other embodiments, when the tilt angle is greater than a third preset angle, it is considered that the tilt angle of the mobile air conditioner 1 is too large and the safety risk is high. At this time, the mobile air conditioner 1 is controlled to execute a third control strategy, that is, to control the compressor to stop, the upper fan 16, the lower fan 17, and the water injection motor 14 to stop running, and to control the power supply of the mobile air conditioner 1 to be disconnected, so as to prevent the internal components of the compressor from easily falling off the spring or having a larger vibration due to the too large tilt angle, the copper pipeline from being deformed, and the subsequent inability to be used normally, and to prevent water from entering the circuit board and causing damage to the circuit board.

[0061] It can be understood that the first preset frequency is a low frequency to reduce the refrigeration capacity of the compressor and reduce the generation of condensed water. The first preset speed is a low speed to accelerate the evaporation speed of the condensed water in the water tank 13. The second preset speed is the preset speed of the water injection motor 14, that is, the low speed set at the factory, to reduce the noise generated when the mobile air conditioner 1 operates. The third preset speed and the fourth preset speed are both high speeds to accelerate the evaporation speed of the condensed water and further reduce the condensed water.

[0062] In a specific embodiment, both the second preset time and the third preset time are values preset in advance according to the actual situation and experimental data, including but not limited to 1 minute. The first preset angle can be 0 degrees, the second preset angle can be 30 degrees, and the third preset angle can be 60 degrees. It can be understood that by presetting the first preset time and the second preset time, the overflow of condensed water can be avoided and the overall protection of the machine can be provided.

[0063] In an embodiment of the present invention, after executing the first control strategy, the controller 71 is further configured to: send out a first prompt message for instructing the mobile air conditioner 1 to enter the first tilt state.

[0064] Specifically, after the controller 71 executes the first control strategy, it indicates that the mobile air conditioner 1 has entered the first tilt state, that is, the tilt angle is greater than the first preset angle and not greater than the second preset angle, and the low water level switch 15 is in the closed state; or, the tilt angle is greater than the second preset angle and not greater than the third preset angle, and the low water level switch 15 is in the open state. At this time, the controller 71 sends out the first prompt message, and the first prompt message includes but is not limited to sound, light, text message or other forms of feedback, so as to provide an immediate visual or auditory indication of the current tilt state of the mobile air conditioner 1 to the user or operator. In a specific embodiment, the form of the first prompt message can be that the digital tube on the display panel displays a prompt code, and / or voice prompt, for example, "Please note that your air conditioner is currently in a tilted state. It is recommended to adjust the position.", and / or the light flashes "Warning: Tilt state", and / or a prompt sound is emitted through the buzzer, etc.

[0065] In an embodiment of the present invention, after executing the second control strategy, the controller 71 is further configured to: issue a second prompt message for indicating that the mobile air conditioner 1 enters the second inclination state.

[0066] Specifically, after the controller 71 executes the second control strategy, it indicates that the mobile air conditioner 1 has entered the second inclination state, that is, the inclination angle is greater than the second preset angle and not greater than the third preset angle, and the low water level switch 15 is in a closed state. At this time, the controller 71 issues the second prompt message, and the second prompt message includes but is not limited to sound, light, text message or other forms of feedback, so as to provide an immediate visual or auditory indication of the current inclination state of the mobile air conditioner 1 to the user or operator. In a specific embodiment, the specific content of the second prompt message may be a voice prompt. For example, "Please note that your air conditioner is currently in a severely inclined state. Please immediately check and adjust the position of the air conditioner", while the light flashes "Warning: severely inclined state", and a prompt sound is emitted through the buzzer, etc., to warn the user in time.

[0067] In an embodiment of the present invention, after executing the third control strategy, the controller 71 is further configured to: issue a third prompt message for indicating that the mobile air conditioner 1 enters the third inclination state.

[0068] Specifically, after the controller 71 executes the third control strategy, it indicates that the mobile air conditioner 1 has entered the third inclination state, that is, the inclination angle is greater than the third preset angle. At this time, the controller 71 issues the third prompt message, and the third prompt message includes but is not limited to sound, light, text message or other forms of feedback, so as to provide an immediate visual or auditory indication of the current inclination state of the mobile air conditioner 1 to the user or operator. In a specific embodiment, the specific content of the third prompt message may be a voice prompt. For example, "Emergency warning: severely inclined state, the air conditioner has stopped running", while the light flashes "Danger: the air conditioner has stopped", and a prompt sound is emitted through the buzzer, etc., to warn the user in time.

[0069] In an embodiment of the present invention, before determining the inclination angle of the mobile air conditioner 1 according to the first distance and the second distance, the controller 71 is further configured to: judge whether the first distance and the second distance are valid; when it is judged that the first distance and the second distance are valid, use the first distance and the second distance to determine the inclination angle of the mobile air conditioner 1; when it is judged that the first distance and the second distance are invalid, issue a fourth prompt message for indicating that the upper surface of the body 11 is blocked.

[0070] Specifically, when the upper surface of the body 11 is blocked, the first distance detected by the first distance measuring component 18 and the second distance detected by the second distance measuring component 19 cannot be used to determine the tilt angle of the mobile air conditioner 1. Therefore, in order to improve the accuracy of tilt angle determination, in the embodiment of the present invention, before determining the tilt angle of the mobile air conditioner 1 based on the first distance and the second distance, it is determined whether the first distance and the second distance are valid. Specifically, in combination with Figure 6 As shown, when the mobile air conditioner 1 is powered on and operating in the cooling or dehumidifying mode, the first distance measuring component 18 detects the first distance d1 between the upper surface of the body 11 and the top of the room; after the second distance measuring component 19 detects the second distance d2 between the upper surface of the body 11 and the top of the room, the controller 71 can perform a validity determination on the detected first distance and second distance. If the determination result is valid, the controller 71 can use the first distance and the second distance to determine the tilt angle of the mobile air conditioner 1. If the determination result is invalid, the controller 71 can issue a fourth prompt message indicating that the upper surface of the body 11 is blocked. It can be understood that the fourth prompt message can be in the form of sound, light, text message or other forms of feedback, used to inform the user or operator that the upper surface of the air conditioner is blocked, resulting in inaccurate distance measurement and thus unable to determine the tilt angle.

[0071] In an embodiment of the present invention, when it is determined that the first distance and the second distance are valid, the controller 71 is specifically configured to: when both the first distance and the second distance are not less than a preset distance, determine that the first distance and the second distance are valid; when the first distance and / or the second distance is less than the preset distance, determine that the first distance and the second distance are invalid.

[0072] Specifically, in combination with Figure 6 As shown, during the process of determining the validity of the first distance and the second distance, when both the first distance and the second distance are not less than the preset distance, it indicates that the display panel of the mobile air conditioner 1 is not blocked, that is, it is determined that the first distance and the second distance are valid, and the first distance and the second distance can be used to determine the tilt angle of the mobile air conditioner 1; when both the first distance and the second distance are less than the preset distance, or when one of the first distance and the second distance is less than the preset distance, it indicates that there is an obstacle on the display panel blocking the distance measuring component, resulting in inaccurate measurement of the actual distance, that is, it is determined that the first distance and the second distance are invalid, and a fourth prompt message for indicating that the upper surface of the body 11 is blocked is issued.

[0073] In a specific embodiment, the preset distance is a value preset according to the actual situation and experimental data, including but not limited to 0.5 meters.

[0074] As a specific embodiment, the overall control process of the mobile air conditioner 1 in the embodiment of the present invention will be described by way of example below in combination with Figure 7 ​

[0075] In this embodiment, as Figure 7 shown, the controller 71 of the mobile air conditioner 1 mainly performs the following steps:

[0076] Step S11, power on the whole machine.

[0077] Step S12, read the parameters in the internal memory of the controller. This parameter is the connection length between the first ranging component and the second ranging component, that is, the preset distance d.

[0078] Step S13, start the mobile air conditioner to run.

[0079] Step S14, determine whether it is in the cooling or dehumidifying mode. If so, execute Step S15; if not, execute Step S16.

[0080] Step S15, turn on the water pump motor.

[0081] Step S16, turn off the water pump motor, turn off the first ranging component, and turn off the second ranging component.

[0082] Step S17, turn on the first ranging component to measure the first distance and turn on the second ranging component to measure the second distance.

[0083] Step S18, record the first distance detected by the first ranging component in real time as d1 and the second distance detected by the second ranging component in real time as d2.

[0084] Step S19, determine whether the first distance is less than the preset distance or the second distance is less than the preset distance (whether there is an obstacle blocking the display panel). If so, execute Step S14; if not, execute Step S20.

[0085] Step S20, obtain the first distance and the second distance multiple times.

[0086] Step S21, determine multiple first tilt angles corresponding to multiple first distances and multiple second distances; take the average value of the multiple first tilt angles as the tilt angle of the mobile air conditioner.

[0087] Step S22, compare the magnitude relationship between the tilt angle value and the preset angle.

[0088] Step S23, if the tilt angle is 0°, that is, in the horizontal state, then execute Step S24.

[0089] Step S24, run according to the preset logic.

[0090] Step S25, if the tilt angle is greater than 0° and less than or equal to 30°, then execute Step S26.

[0091] Step S26: Determine whether the low water level switch is closed. If it is, execute Step S27; if not, execute Step S24.

[0092] Step S27: The compressor operates at the first preset frequency, the upper fan and the lower fan rotate at the first preset speed, and the water pumping motor operates at the second preset speed.

[0093] Step S28: Send out the first prompt message for indicating that the mobile air conditioner enters the first tilted state.

[0094] Step S29: The timer accumulates the elapsed time.

[0095] Step S30: Determine whether the accumulated time of the timer is greater than the second preset time. If it is, execute Step S31; if not, execute Step S27.

[0096] Step S31: Clear the timer and return to execute Step S20.

[0097] Step S32: If the tilt angle is greater than 30° and less than or equal to 60°, then execute Step S33.

[0098] Step S33: Determine whether the low water level switch is closed. If it is, execute Step S34; if not, execute Step S27.

[0099] Step S34: Control the compressor to stop, control the upper fan to stop, control the lower fan to rotate at the third preset speed, and control the water pumping motor to operate at the fourth preset speed.

[0100] Step S35: Send out the second prompt message for indicating that the mobile air conditioner enters the second tilted state.

[0101] Step S36: The timer accumulates the elapsed time.

[0102] Step S37: Determine whether the accumulated time of the timer is greater than the third preset time. If it is, execute Step S38; if not, execute Step S34.

[0103] Step S38: Control the lower fan and the water pumping motor to stop running, clear the timer, and return to execute Step S13.

[0104] Step S39: If the tilt angle is greater than 60°, then execute Step S40.

[0105] Step S40: Control the compressor to stop, the upper fan, the lower fan, and the water pumping motor to stop running, and control the power supply of the mobile air conditioner to be disconnected, and send out the third prompt message for indicating that the mobile air conditioner enters the third tilted state.

[0106] According to the mobile air conditioner 1 of the embodiment of the present invention, when the mobile air conditioner 1 is in the refrigeration or dehumidification mode, the distance value can be obtained through the ranging component, the inclination angle of the current mobile air conditioner 1 can be obtained according to the preset algorithm, and then the operating frequency of the compressor, the rotation speed of the water pumping motor 14, and the rotation speeds of the upper blower 16 and the lower blower 17 can be controlled according to the inclination angle of the current mobile air conditioner 1 and the closed state of the low water level switch 15, so as to avoid the overflow of condensed water in the water tank 13 and the damage of the compressor, thereby reducing the safety risk of the mobile air conditioner 1 and improving the user experience.

[0107] A further embodiment of the present invention also discloses a control method for a mobile air conditioner. Figure 8 It is a flowchart of a control method for a mobile air conditioner according to an embodiment of the present invention. As Figure 8 shown, a control method for a mobile air conditioner, which is used for the mobile air conditioner in any of the above embodiments, the method includes the following steps:

[0108] Step S1: When the mobile air conditioner is in the refrigeration or dehumidification mode, determine the inclination angle of the mobile air conditioner according to the first distance and the second distance.

[0109] Step S2: Control the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper blower and the lower blower according to the inclination angle and the closed state of the low water level switch.

[0110] In an embodiment of the present invention, when the mobile air conditioner is in the refrigeration or dehumidification mode, determining the inclination angle of the mobile air conditioner according to the first distance and the second distance includes the following calculation formula:

[0111]

[0112] where α is the inclination angle of the mobile air conditioner, d1 is the first distance, d2 is the second distance, and d is the preset distance.

[0113] In an embodiment of the present invention, when the mobile air conditioner is in the refrigeration or dehumidification mode, determining the inclination angle of the mobile air conditioner according to the first distance and the second distance includes: obtaining the first distance and the second distance multiple times at intervals of the first preset time; correspondingly determining multiple first inclination angles according to the multiple first distances and the multiple second distances; and taking the average value of the multiple first inclination angles as the inclination angle of the mobile air conditioner.

[0114] In one embodiment of the present invention, the operating frequency of the compressor, the rotational speed of the water pump motor, and the rotational speeds of the upper and lower blowers are controlled according to the tilt angle and the closed state of the low water level switch, including: when the tilt angle is greater than a first preset angle and not greater than a second preset angle, and the low water level switch is in the closed state, a first control strategy is executed. The first control strategy includes: controlling the compressor to operate at a first preset frequency, controlling the upper and lower blowers to rotate at a first preset speed, and controlling the water pump motor to operate at a second preset speed, and after a second preset time has elapsed, returning to execute the step of determining the tilt angle of the mobile air conditioner according to the first distance and the second distance; wherein the first preset angle is less than the second preset angle; when the tilt angle is greater than the second preset angle and not greater than a third preset angle, and the low water level switch is in the open state, the first control strategy is executed; wherein the second preset angle is less than the third preset angle; when the tilt angle is greater than the second preset angle and not greater than a third preset angle, and the low water level switch is in the closed state, a second control strategy is executed. The second control strategy includes: controlling the compressor to stop, controlling the upper blower to stop, controlling the lower blower to rotate at a third preset speed, and controlling the water pump motor to operate at a fourth preset speed, and after a third preset time has elapsed, controlling the lower blower and the water pump motor to stop operating; wherein the third preset speed is greater than the first preset speed, and the fourth preset speed is greater than the second preset speed; when the tilt angle is greater than the third preset angle, a third control strategy is executed. The third control strategy includes: controlling the compressor to stop, controlling the upper blower, the lower blower, and the water pump motor to stop operating, and controlling the power supply of the mobile air conditioner to be disconnected.

[0115] In one embodiment of the present invention, the control of the operating frequency of the compressor, the rotational speed of the water pump motor, and the rotational speeds of the upper and lower blowers according to the tilt angle and the closed state of the low water level switch further includes: after executing the first control strategy, sending a first prompt message for indicating that the mobile air conditioner enters a first tilt state.

[0116] In one embodiment of the present invention, the control of the operating frequency of the compressor, the rotational speed of the water pump motor, and the rotational speeds of the upper and lower blowers according to the tilt angle and the closed state of the low water level switch further includes: after executing the second control strategy, sending a second prompt message for indicating that the mobile air conditioner enters a second tilt state.

[0117] In one embodiment of the present invention, the control of the operating frequency of the compressor, the rotational speed of the water pump motor, and the rotational speeds of the upper and lower blowers according to the tilt angle and the closed state of the low water level switch further includes: after executing the third control strategy, sending a third prompt message for indicating that the mobile air conditioner enters a third tilt state.

[0118] In one embodiment of the present invention, before determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the method further includes: determining whether the first distance and the second distance are valid; when it is determined that the first distance and the second distance are valid, using the first distance and the second distance to determine the tilt angle of the mobile air conditioner; when it is determined that the first distance and the second distance are invalid, sending a fourth prompt message for indicating that the upper surface of the machine body is blocked.

[0119] In one embodiment of the present invention, when determining that the first distance and the second distance are valid, it includes: when both the first distance and the second distance are not less than a preset distance, determining that the first distance and the second distance are valid; when the first distance and / or the second distance is less than the preset distance, determining that the first distance and the second distance are invalid.

[0120] It should be noted that when controlling the mobile air conditioner according to the control method of the mobile air conditioner in the embodiment of the present invention, the specific implementation manner is similar to the control method of the controller of the mobile air conditioner in the embodiment of the present invention. For details, please refer to the description in the method part. To reduce redundancy, it will not be elaborated here.

[0121] According to the control method of the mobile air conditioner in the embodiment of the present invention, when the mobile air conditioner is in the process of changing positions in the cooling or dehumidifying mode, the distance value can be obtained through the ranging component, and the current tilt angle of the mobile air conditioner can be obtained according to the preset algorithm. Furthermore, according to the current tilt angle of the mobile air conditioner and the closed state of the low water level switch, the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper fan and the lower fan are controlled, so as to avoid the overflow of condensed water in the water tank and damage to the compressor, thereby reducing the safety risk of the mobile air conditioner and improving the user experience.

[0122] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0123] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A mobile air conditioner, characterized in that, it includes: a body; a refrigerant circulation circuit arranged in the body, and the refrigerant circulation circuit circulates refrigerant in a circuit composed of a compressor, a condenser, an expansion valve, an evaporator, a four-way valve and a pressure reducer; the compressor is used to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharge it to the condenser; a water tank arranged in the body, and the water tank is used to collect the condensed water generated by the operation of the evaporator; a water spraying motor arranged in the body, and the water spraying motor is used to spray the condensed water in the water tank onto the condenser; a low water level switch arranged in the water tank, and the low water level switch is used to close when the water level of the condensed water reaches a water level threshold for characterizing a low water level, or to disconnect when the water level of the condensed water does not reach the water level threshold; an upper blower arranged in the body, and the upper blower is used to adjust the temperature of the evaporator; a lower blower arranged in the body, and the lower blower is used to adjust the temperature of the condenser; a first distance measuring component arranged at the first end of the upper surface of the body, the first distance measuring component is perpendicular to the upper surface of the body and is arranged facing the upper part of the body, and the first distance measuring component is used to detect a first distance between the upper surface of the body and the top of the room; a second distance measuring component arranged at the second end of the upper surface of the body, the second distance measuring component is perpendicular to the upper surface of the body and is arranged facing the upper part of the body, and the second distance measuring component is used to detect a second distance between the upper surface of the body and the top of the room; a controller, and the controller is configured to: when the mobile air conditioner is in a refrigeration or dehumidification mode, determine the tilt angle of the mobile air conditioner according to the first distance and the second distance; control the operating frequency of the compressor, the rotation speed of the water spraying motor, the rotation speeds of the upper blower and the lower blower according to the tilt angle and the closed state of the low water level switch.

2. The mobile air conditioner according to claim 1, characterized in that, when determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the controller is specifically configured to execute the following formula: where α is the tilt angle of the mobile air conditioner, d 1 is the first distance, d 2 is the second distance, and d is a preset distance.

3. The mobile air conditioner according to claim 1, characterized in that, when determining the tilt angle of the mobile air conditioner according to the first distance and the second distance, the controller is specifically configured to: acquire the first distance and the second distance multiple times at intervals of a first preset time; correspondingly determine multiple first tilt angles according to multiple first distances and multiple second distances; take the average value of multiple first tilt angles as the tilt angle of the mobile air conditioner.

4. The mobile air conditioner according to claim 1, characterized in that, when controlling the operating frequency of the compressor, the rotation speed of the water spraying motor, the rotation speeds of the upper blower and the lower blower according to the tilt angle and the closed state of the low water level switch, the controller is specifically configured to: When the inclination angle is greater than the first preset angle and not greater than the second preset angle, and the low water level switch is in the closed state, execute the first control strategy, where the first control strategy includes: controlling the compressor to operate at a first preset frequency, controlling the upper fan and the lower fan to rotate at a first preset speed, and controlling the water injection motor to operate at a second preset speed, and after a second preset time, return to execute the step of determining the inclination angle of the mobile air conditioner according to the first distance and the second distance; where the first preset angle is less than the second preset angle; When the inclination angle is greater than the second preset angle and not greater than the third preset angle, and the low water level switch is in the open state, execute the first control strategy; where the second preset angle is less than the third preset angle; When the inclination angle is greater than the second preset angle and not greater than the third preset angle, and the low water level switch is in the closed state, execute the second control strategy, where the second control strategy includes: controlling the compressor to stop, controlling the upper fan to stop, controlling the lower fan to rotate at a third preset speed, and controlling the water injection motor to operate at a fourth preset speed, and after a third preset time, control the lower fan and the water injection motor to stop operating; where the third preset speed is greater than the first preset speed, and the fourth preset speed is greater than the second preset speed; When the inclination angle is greater than the third preset angle, execute the third control strategy, where the third control strategy includes: controlling the compressor to stop, controlling the upper fan, the lower fan, and the water injection motor to stop operating, and controlling the power supply of the mobile air conditioner to be disconnected.

5. The mobile air conditioner according to claim 4, wherein, After executing the first control strategy, the controller is further configured to: Send a first prompt message for indicating that the mobile air conditioner enters the first inclination state.

6. The mobile air conditioner according to claim 4, wherein, After executing the second control strategy, the controller is further configured to: Send a second prompt message for indicating that the mobile air conditioner enters the second inclination state.

7. The mobile air conditioner according to claim 4, wherein, After executing the third control strategy, the controller is further configured to: Send a third prompt message for indicating that the mobile air conditioner enters the third inclination state.

8. The mobile air conditioner according to claim 1, wherein, Before determining the inclination angle of the mobile air conditioner according to the first distance and the second distance, the controller is further configured to: Judge whether the first distance and the second distance are valid; When it is judged that the first distance and the second distance are valid, use the first distance and the second distance to determine the inclination angle of the mobile air conditioner; When it is judged that the first distance and the second distance are invalid, send a fourth prompt message for indicating that the upper surface of the machine body is blocked.

9. The mobile air conditioner according to claim 8, wherein, When determining that the first distance and the second distance are valid, the controller is specifically configured to: When both the first distance and the second distance are not less than a preset distance, determine that the first distance and the second distance are valid; When the first distance and / or the second distance is less than the preset distance, determine that the first distance and the second distance are invalid.

10. A control method for a mobile air conditioner Characterized in that For the mobile air conditioner according to any one of claims 1-9, the method comprises the following steps: When the mobile air conditioner is in the cooling or dehumidifying mode, determine the tilt angle of the mobile air conditioner according to the first distance and the second distance; Control the operating frequency of the compressor, the rotation speed of the water pumping motor, and the rotation speeds of the upper blower and the lower blower according to the tilt angle and the closed state of the low water level switch.

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