Mobile air conditioner

Abstract

The invention discloses a mobile air conditioner which comprises a refrigerant loop and a heat exchanger. The outdoor unit part is located on the lower side and comprises an outdoor heat exchanger, and a water collecting tank is formed in the bottom of the outdoor unit part; the indoor unit part is positioned on the upper side and comprises an indoor heat exchanger; the water fetching assembly comprises a water pump, and the water pump is arranged in the water collecting tank; one end of the spray pipe is communicated with a water outlet of the water pump, and a plurality of spray holes which are formed in the height direction at intervals are formed in the spray pipe; wherein the flow velocity v of the condensed water at the spray holes meets the relational expression: # imgabs0 #, Q is the flow of the water pump, N is the number of the spray holes, and d is the diameter of the spray holes. Condensate water is pressurized through the water pump to enter the spraying pipe and is sprayed out from the spraying hole to form the jet flow liquid column, the jet flow liquid column collides with the outdoor heat exchanger, the jet flow liquid column is broken into tiny fog drops, the purpose that the mobile air conditioner is free of water drainage in the high-humidity environment can be achieved, the user experience feeling is improved, and frequent water drainage of a user is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a mobile air conditioner. Background Art

[0002] A mobile air conditioner is a convenient, small-sized and freely movable integrated air conditioner. Different from traditional air conditioners, the evaporator and condenser of a mobile air conditioner are installed in the same space. During refrigeration operation, the condensed water generated by the evaporator drips onto the water receiving tray at the lower part of the condenser, and the water spraying motor drives the water spraying wheel to atomize and sprinkle the condensed water onto the high-temperature fins on the side of the condenser, so that the condensed water is heated and evaporated, and is carried away by the cooling air on the side of the condenser.

[0003] Limited by the structure, layout form of the water spraying wheel and the design of the condenser flow path, some of the atomized condensed water cannot contact the high-temperature fins. At the same time, affected by gravity, the residence time in the air is limited, and it falls into the water collecting tray at the bottom of the condenser before absorbing heat and evaporating. At the same time, through the visualization experiment of the atomization effect of the water spraying wheel, it is found that the particle size distribution of the atomized condensed water mist is uneven and the dispersion degree is poor, which directly affects the evaporation effect of the atomized condensed water.

[0004] In related technologies, when the mobile air conditioner is in a high-humidity working condition (ambient relative humidity is greater than 90%), the condensed water atomization method cannot atomize and evaporate the condensed water in time and discharge it outdoors. At this time, the mobile air conditioner will trigger water full protection and cause shutdown, and it is impossible to achieve drain-free and non-stop operation under high-humidity working conditions. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a mobile air conditioner, which pressurizes condensed water by a water pump to make it enter a nozzle and eject from a spray hole to form a jet liquid column. The jet liquid column collides with an outdoor heat exchanger, and the jet liquid column breaks into extremely small droplets, increasing the contact area and contact rate between the condensed water mist and the outdoor heat exchanger, capable of achieving the purpose of drain-free operation of the mobile air conditioner in a high-humidity environment, improving the user experience, and avoiding frequent drainage by the user.

[0006] The mobile air conditioner according to an embodiment of the present invention includes: a refrigerant circuit in which the refrigerant circulates successively through a compressor, a condenser, a pressure reducer, and an evaporator, and one of the condenser and the evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger; an outdoor unit portion located on the lower side, the outdoor unit portion includes a first housing, an outdoor fan, the compressor, and the outdoor heat exchanger provided in the first housing, and a water collecting tank is formed at the bottom of the outdoor unit portion; an indoor unit portion located on the upper side, the indoor unit portion includes a second housing, an indoor air duct member, an indoor fan, and the indoor heat exchanger provided in the second housing, and the indoor fan is provided in the indoor air duct member; and further includes: a water spraying assembly provided in the outdoor unit portion, the water spraying assembly includes: a water pump provided in the water collecting tank; a spray pipe disposed opposite to the outdoor heat exchanger, one end of the spray pipe is communicated with the water outlet of the water pump, and a plurality of spray holes are provided on the spray pipe at intervals in the height direction, and the spray holes are arranged facing the outdoor heat exchanger;

[0007] Wherein, the flow velocity v of the condensed water at the spray hole satisfies the relational expression:

[0008]

[0009] Wherein, Q is the flow rate of the water pump, N is the number of the spray holes, and d is the diameter of the spray holes.

[0010] For the mobile air conditioner according to an embodiment of the present invention, the water pump pressurizes the condensed water to make it enter the spray pipe and eject from the spray holes to form a jet liquid column. The jet liquid column collides with the outdoor heat exchanger, and the jet liquid column breaks into extremely small droplets, which can improve the atomization effect and dispersion uniformity of the condensed water, increase the contact area and contact rate between the condensed water mist and the outdoor heat exchanger, accelerate the evaporation of the condensed water, and can achieve the purpose of drainage-free for the mobile air conditioner in a high-humidity environment, improve the user experience, and avoid frequent drainage by the user.

[0011] According to some embodiments of the present invention, the direction of the condensed water ejected from the spray hole and the outdoor heat exchanger are arranged at an acute angle so that the condensed water is sprayed on the outdoor heat exchanger.

[0012] According to some embodiments of the present invention, the included angle between the direction of the condensed water ejected from the spray hole and the outdoor heat exchanger is θ, and θ satisfies the relational expression: 78° ≤ θ ≤ 82°.

[0013] According to some embodiments of the present invention, the outdoor heat exchanger includes: a first heat exchanger and a second heat exchanger, the first heat exchanger and the second heat exchanger are arranged at intervals in the air inlet direction of the outdoor wind, the spray pipe is clamped between the first heat exchanger and the second heat exchanger, and the spray holes are arranged facing the first heat exchanger or the second heat exchanger.

[0014] According to some embodiments of the present invention, there are two nozzles, and the two nozzles are spaced apart in the width direction. One of the nozzles is arranged towards one of the first heat exchanger and the second heat exchanger, and the other nozzle is arranged towards the other one of the first heat exchanger and the second heat exchanger.

[0015] According to some embodiments of the present invention, the water injection assembly further includes: a main water inlet pipe and two branch water inlet pipes. One end of the main water inlet pipe is communicated with the water outlet of the water pump, and the other end of the main water inlet pipe is communicated with one ends of the two branch water inlet pipes. The other ends of the two branch water inlet pipes are respectively communicated with the two nozzles.

[0016] According to some embodiments of the present invention, the nozzle includes: a nozzle body and two fixed baffles. The two fixed baffles are arranged on both sides of the nozzle body in the radial direction, and the fixed baffles are fixedly connected with the outdoor heat exchanger.

[0017] According to some embodiments of the present invention, the outdoor heat exchanger includes: a refrigerant pipe and fins. The refrigerant pipe penetrates through the fins, the spray holes are arranged towards the fins, and the fixed baffles are fixedly connected with the fins.

[0018] According to some embodiments of the present invention, a first insertion portion is arranged on the fixed baffle, a second insertion portion is arranged on the fin, and the first insertion portion and the second insertion portion are in insertion fit.

[0019] According to some embodiments of the present invention, the mobile air conditioner further includes: a first base and a second base. The second base is arranged below the first base. The indoor heat exchanger is fixed on the first base, the outdoor heat exchanger is fixed on the second base. A water spraying hole communicating with the second base is arranged at the lowest point of the first base, and the water collecting tank is arranged on the second base.

[0020] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of a mobile air conditioner according to an embodiment of the present invention;

[0023] Figure 2 is a side view of a mobile air conditioner according to an embodiment of the present invention;

[0024] Figure 3 Schematic connection diagram of a water injection component and an outdoor heat exchanger according to an embodiment of the present invention;

[0025] Figure 4 is Figure 3 partial schematic diagram of;

[0026] Figure 5 Schematic connection diagram of a main water pipe and two branch water pipes according to an embodiment of the present invention;

[0027] Figure 6 Schematic connection diagram of a nozzle and a heat exchanger according to an embodiment of the present invention;

[0028] Figure 7 is Figure 6 partial schematic diagram of;

[0029] Figure 8 Schematic structural diagram of a nozzle according to an embodiment of the present invention;

[0030] Figure 9 is Figure 8 partial schematic diagram of;

[0031] Figure 10 Cross-sectional schematic diagram of a nozzle according to an embodiment of the present invention;

[0032] Figure 11 Schematic structural diagram of a water injection component and an outdoor heat exchanger according to an embodiment of the present invention;

[0033] Figure 12 Schematic diagram of a nozzle facing the first heat exchanger according to an embodiment of the present invention;

[0034] Figure 13 Schematic diagram of a nozzle facing the second heat exchanger according to an embodiment of the present invention;

[0035] Figure 14 Schematic diagram of two nozzles respectively facing the first heat exchanger and the second heat exchanger according to Embodiment 1 of the present invention;

[0036] Figure 15 Schematic diagram of two nozzles respectively facing the first heat exchanger and the second heat exchanger according to Embodiment 2 of the present invention.

[0037] Reference numerals:

[0038] 100, mobile air conditioner;

[0039] 11, indoor heat exchanger; 12, outdoor heat exchanger; 121, first heat exchanger; 122, second heat exchanger; 123, refrigerant pipe; 124, fin; 13, first base; 131, water spraying hole; 14, second base; 141, water collecting tank;

[0040] 20. Water pumping assembly; 21. Water pump; 22. Spray pipe; 221. Spray pipe main body; 222. Fixed baffle; 223. Spray hole; 23. Main water inlet pipe; 24. Branch water inlet pipe. Detailed implementation manners

[0041] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0042] Reference will be made below Figures 1 - 15 to describe the mobile air conditioner 100 according to an embodiment of the present invention.

[0043] In combination with Figure 1 as shown, the mobile air conditioner 100 includes: a refrigerant circuit, an outdoor unit part, and an indoor unit part. In the refrigerant circuit, the refrigerant circulates successively through a compressor, a condenser, a decompressor, and an evaporator. One of the condenser and the evaporator is an outdoor heat exchanger 12, and the other is an indoor heat exchanger 11.

[0044] The outdoor unit part is located at the lower side. The outdoor unit part includes a first housing and an outdoor fan, a compressor, and an outdoor heat exchanger 12 disposed in the first housing. A water collecting tank 141 is formed at the bottom of the outdoor unit part. When the outdoor heat exchanger 12 serves as an evaporator, condensed water is generated at the evaporator, and the condensed water accumulates in the water collecting tank 141 to prevent the condensed water from corroding the components.

[0045] An outdoor air inlet and an outdoor air outlet are provided on the first housing. Outdoor air enters the first housing from the outdoor air inlet and then exits the outdoor from the outdoor air outlet. The compressor, the outdoor heat exchanger 12, and the outdoor fan are all disposed in the first housing. Outdoor air enters the first housing from the outdoor air inlet and exchanges heat in the first housing and then exits the outdoor from the outdoor air outlet.

[0046] The compressor is disposed in the first housing. The compressor is provided with an exhaust port and a suction port. The compressor compresses the refrigerant, making the low-pressure refrigerant become a high-pressure gaseous refrigerant. The low-pressure refrigerant enters the compressor from the suction port. After the compressor compresses the low-pressure refrigerant into a high-pressure refrigerant, the high-pressure refrigerant exits from the exhaust port. The refrigerant releases heat at the condenser, absorbs heat at the evaporator after decompression, and finally enters the compressor from the suction port.

[0047] The outdoor heat exchanger 12 is disposed within the first housing, and exchanges heat between the outdoor air and the refrigerant flowing through the outdoor heat exchanger 12. The outdoor air entering the interior of the first housing from the outdoor air inlet flows to the outdoor heat exchanger 12 to exchange heat with the refrigerant. The outdoor air enters the first housing from the outdoor air inlet and flows to the outdoor heat exchanger 12; also, the refrigerant flows through the outdoor heat exchanger 12. When the outdoor air passes through the outdoor heat exchanger 12, it exchanges heat with the refrigerant; the heated outdoor air then flows to the outdoor air outlet and is discharged outdoors from the outdoor air outlet.

[0048] For example, the outdoor heat exchanger 12 operates as a condenser in the cooling mode of the mobile air conditioner 100, such that the refrigerant compressed by the compressor dissipates heat to the outdoor air through the outdoor heat exchanger 12 and condenses. The outdoor heat exchanger 12 operates as an evaporator in the heating mode of the mobile air conditioner 100, such that the depressurized refrigerant absorbs heat from the outdoor air through the outdoor heat exchanger 12 and evaporates.

[0049] The outdoor fan is located within the first housing. Driven by the outdoor fan, the outdoor air enters the first housing from the outdoor air inlet and flows to the outdoor heat exchanger 12. After the outdoor air exchanges heat with the refrigerant at the outdoor heat exchanger 12, the refrigerant is discharged outdoors from the outdoor air outlet driven by the outdoor fan.

[0050] The indoor unit portion is located above the outdoor unit portion. The indoor unit portion includes a second housing, and an indoor air duct member, an indoor fan, and an indoor heat exchanger 11 disposed within the second housing. The indoor fan is disposed within the indoor air duct member.

[0051] The second housing is located above the first housing, and the first housing and the second housing are connected. That is, the second housing is provided with an indoor air inlet and an indoor air outlet. The indoor air enters the second housing from the indoor air inlet and then enters the room from the indoor air outlet. The indoor heat exchanger 11, the indoor fan, and the indoor air duct member are located within the second housing. The indoor air enters the second housing, exchanges heat at the indoor heat exchanger 11, and then enters the room from the indoor air outlet.

[0052] The indoor heat exchanger 11 is disposed within the second housing, and exchanges heat between the indoor air and the refrigerant flowing through the indoor heat exchanger 11. The indoor air entering the interior of the second housing from the indoor air inlet flows to the indoor heat exchanger 11 to exchange heat with the refrigerant. The indoor air enters the second housing from the indoor air inlet and flows to the indoor heat exchanger 11; also, the refrigerant flows through the indoor heat exchanger 11. When the indoor air passes through the indoor heat exchanger 11, it exchanges heat with the refrigerant; the heated indoor air then flows to the indoor air outlet and is discharged into the room from the indoor air outlet.

[0053] For example, the indoor heat exchanger 11 operates as an evaporator in the cooling mode of the mobile air conditioner 100, such that the depressurized refrigerant absorbs the heat of the indoor air through the indoor heat exchanger 11 and evaporates. The indoor heat exchanger 11 operates as a condenser in the heating mode of the mobile air conditioner 100, such that the refrigerant compressed by the compressor dissipates heat to the indoor air through the indoor heat exchanger 11 and condenses.

[0054] The indoor fan is disposed within the indoor air duct member. The indoor fan rotates to drive the air flow to enter the second housing from the indoor air inlet, exchange heat with the indoor heat exchanger 11, and then flow out of the indoor air outlet to the interior of the room. Driven by the indoor fan, the indoor air enters the second housing from the indoor air inlet, flows to the indoor heat exchanger 11. After the indoor air exchanges heat with the refrigerant at the indoor heat exchanger 11, the refrigerant is discharged into the room from the indoor air outlet under the drive of the indoor fan.

[0055] According to Figure 1 As shown, the mobile air conditioner 100 further includes: a water spraying assembly 20, which is disposed within the outdoor unit portion. The water spraying assembly 20 includes: a water pump 21 and a spray pipe 22. The water pump 21 is disposed within the water collecting tank 141; the spray pipe 22 and the outdoor heat exchanger 12 are disposed opposite to each other. One end of the spray pipe 22 is communicated with the water outlet of the water pump 21, and a plurality of spray holes 223 are disposed on the spray pipe 22 at intervals in the height direction, and the spray holes 223 are oriented towards the outdoor heat exchanger 12.

[0056] As Figure 1 shown, the water pump 21 is located in the water collecting tank 141 at the bottom of the mobile air conditioner 100, and the spray pipe 22 is vertically installed and disposed opposite to the outdoor heat exchanger 12. After the condensed water is pumped in by the water pump 21 and its energy is increased, it flows out of the water outlet, then flows into the spray pipe 22, and finally is ejected at a high speed from the spray holes 223 on the spray pipe 22, impacts on the outdoor heat exchanger 12, breaks up and atomizes into fine droplets, and adheres to the outdoor heat exchanger 12, and is evaporated by heat and carried away by the cooling air, thereby achieving the purpose of the mobile air conditioner 100 being free of drainage in a high humidity environment.

[0057] The water pump 21 pressurizes the water in the water collecting tank 141. After the water is pressurized, it enters the spray pipe 22 from the water outlet. A plurality of spray holes 223 are disposed on the spray pipe 22 at intervals in the height direction. The plurality of spray holes 223 communicate the interior of the spray pipe 22 with the outside. The water flowing in the spray pipe 22 can be ejected from the plurality of spray holes 223 to form jet liquid columns. The spray holes 223 are oriented towards the outdoor heat exchanger 12. Then the liquid columns ejected from the spray holes 223 impact on the outdoor heat exchanger 12, and the jet liquid columns break into extremely small droplets, generating a fine water mist, thereby increasing the evaporation rate of the condensed water, and the air on the side of the outdoor heat exchanger 12 takes away more condensed water.

[0058] After being pressurized by the water pump 21, the condensed water has a high speed through the spray holes 223. After hitting the outdoor heat exchanger 12, it can quickly generate a large number of fine water mists, and the spraying direction is directly towards the outdoor heat exchanger 12. In this way, the contact area between the outdoor heat exchanger 12 and the condensed water can be increased, and the atomization effect of the condensed water and the uniformity of the water mist distribution can be improved.

[0059] Working principle of the water pump 21: When the liquid is pressurized by the water pump 21 and ejected from the relatively narrow spray holes 223, it has a high kinetic energy. During the movement, due to instability, part of the liquid will fall off from the jet liquid column, generating smaller water droplets. At the same time, in the relatively short movement path, when the high-speed flowing fine stream hits the stationary solid wall surface (i.e., the outer wall of the outdoor heat exchanger 12), it will break, and after breaking, atomized particles with a diameter of 15μm - 60μm are formed. The atomized particles adhere to the high-temperature fins 124 on the side of the indoor heat exchanger 11, are heated and evaporated, and are carried away by the cooling air, so as to achieve the purpose of removing condensed water.

[0060] Among them, the flow velocity v of the condensed water at the spray holes 223 satisfies the relationship:

[0061] Among them, Q is the flow rate of the water pump 21, N is the number of spray holes 223, and d is the diameter of the spray holes 223.

[0062] In an embodiment of the present invention, the diameter of the spray pipe 22 is 5 mm.

[0063] On this basis, the range of the flow velocity V of the condensed water at the spray holes 223 is between 20 m / s - 30 m / s, ensuring a good spraying effect at the spray holes 223 and ensuring the evaporation efficiency of the condensed water.

[0064] Furthermore, the range of the flow rate Q of the water pump 21 is between 3.5 L / min - 4.5 L / min, so that a good spraying effect is generated at the spray holes 223, thereby ensuring the evaporation efficiency of the condensed water.

[0065] In some embodiments, the number range of the spray holes 223 is between 7 - 9. The number and position of the spray holes 223 are set according to the height dimension of the outdoor heat exchanger 12, so that the jet liquid column ejected from the spray holes 223 fully contacts the outdoor heat exchanger 12, and the evaporation effect of the condensed water is improved.

[0066] Preferably, the number of the spray holes 223 is 9. The 9 spray holes 223 are evenly spaced along the height direction on the spray pipe 22, ensuring that the jet liquid column ejected from the spray ports fully contacts the outdoor heat exchanger 12 and improving the evaporation efficiency of the condensed water.

[0067] The diameter d of the spray hole 223 ranges from 0.3 mm to 0.5 mm, ensuring a good spray effect when the jet liquid column ejected from the spray hole 223 collides with the outdoor heat exchanger 12. If the diameter of the spray hole 223 is less than 0.3 mm, the jet liquid column ejected from the spray hole 223 is too thin, and the evaporation efficiency of the condensed water is too low, resulting in unsmooth drainage of the condensed water; if the diameter of the spray hole 223 is greater than 0.5 mm. Then the jet liquid column ejected from the spray hole 223 is thicker, and at this time, the kinetic energy of the jet liquid column is insufficient. During the movement, due to instability, most of the liquid will fall off from the jet liquid column, and only a small part of the liquid collides with the fins 124 of the outdoor heat exchanger 12 to produce spray, resulting in a lower evaporation efficiency of the condensed water.

[0068] By adjusting the distribution position of the spray holes 223, the uniformity of the water mist distribution can be improved to make the best use of the heat of the outdoor heat exchanger 12; by adjusting the diameter and quantity of the spray holes 223, jet liquid columns with different speeds can be obtained, and finally different atomization effects can be produced.

[0069] Therefore, the water pump 21 pressurizes the condensed water to make it enter the spray pipe 22 and eject from the spray holes 223 to form a jet liquid column. The jet liquid column collides with the outdoor heat exchanger 12, and the jet liquid column breaks into extremely small droplets, which can improve the atomization effect and dispersion uniformity of the condensed water, increase the contact area and contact rate between the condensed water mist and the outdoor heat exchanger 12, accelerate the evaporation of the condensed water, and achieve the purpose of drainage-free for the mobile air conditioner 100 in a high-humidity environment, improve the user experience, and avoid frequent drainage by the user.

[0070] Combined with Figures 3 - 10 As shown, the direction of the condensed water ejected from the spray hole 223 and the outdoor heat exchanger 12 are arranged at an acute angle so that the condensed water is sprayed on the outdoor heat exchanger 12. Specifically, the condensed water ejects from the spray hole 223 to form a jet liquid column. There is an angle between the jet liquid column and the outdoor heat exchanger 12, and the angle between the jet liquid column and the outdoor heat exchanger 12 is an acute angle. The jet liquid column shoots between two adjacent fins 124 of the outdoor heat exchanger 12. Then, the spray generated after the jet liquid column collides with the outdoor heat exchanger 12 is in full contact with the outdoor heat exchanger 12 to achieve the maximum atomization effect of the condensed water, increase the contact area between the water mist and the outdoor heat exchanger 12, and make the best use of the condensation heat.

[0071] Combined with Figure 10 、 Figure 12 and Figure 13As shown, the angle between the direction of the condensed water ejected from the spray hole 223 and the outdoor heat exchanger 12 is θ, and θ satisfies the relationship: 78° ≤ θ ≤ 82°. Specifically, the condensed water ejected from the spray hole 223 forms a jet liquid column, and the included angle range formed between the jet liquid column and the outdoor heat exchanger 12 is between 78° and 82°. Such a design can ensure that the ejected jet liquid column can produce a large atomization effect when hitting the fins 124 of the outdoor heat exchanger 12, increasing the contact area between the water mist and the outdoor heat exchanger 12, and maximizing the utilization of the condensation heat.

[0072] Referring to Figure 6 and Figure 7 As shown, the outdoor heat exchanger 12 includes: a first heat exchanger 121 and a second heat exchanger 122. The first heat exchanger 121 and the second heat exchanger 122 are arranged at intervals in the incoming air direction of the outdoor wind. The spray pipe 22 is clamped between the first heat exchanger 121 and the second heat exchanger 122, and the spray hole 223 is arranged facing the first heat exchanger 121 or the second heat exchanger 122.

[0073] That is to say, the first heat exchanger 121 and the second heat exchanger 122 are arranged at intervals from each other. The spray pipe 22 is arranged in the gap between the first heat exchanger 121 and the second heat exchanger 122, and the spray pipe 22 extends in the height direction. A plurality of spray holes 223 are uniformly arranged at intervals along the height direction on the spray pipe 22

[0074] As Figure 12 shown, the spray hole 223 can be arranged facing the first heat exchanger 121. The condensed water ejected from the spray hole 223 forms a jet liquid column, and the jet liquid column shoots towards the first heat exchanger 121 and collides with the first heat exchanger 121, causing the jet liquid column to break into extremely small droplets, generating a fine water mist, thereby increasing the evaporation rate of the condensed water, and taking away more condensed water through the air on the side of the outdoor heat exchanger 12.

[0075] In some other embodiments, as Figure 13 shown, the spray pipe 22 can be arranged facing the second heat exchanger 122. The condensed water ejected from the spray hole 223 forms a jet liquid column, and the jet liquid column shoots towards the second heat exchanger 122 and collides with the second heat exchanger 122, causing the jet liquid column to break into extremely small droplets, generating a fine water mist, thereby increasing the evaporation rate of the condensed water, and taking away more condensed water through the air on the side of the outdoor heat exchanger 12.

[0076] As Figure 3 、 Figure 14 and Figure 15As shown in the figure, there can be two nozzles 22. The two nozzles 22 are arranged at intervals in the width direction. One of the nozzles 22 is arranged towards one of the first heat exchanger 121 and the second heat exchanger 122, and the other nozzle 22 is arranged towards the other one of the first heat exchanger 121 and the second heat exchanger 122. Specifically, the two nozzles 22 are arranged at intervals in the width direction of the outdoor heat exchanger 12. The two nozzles 22 should be vertically installed in the gap between the first heat exchanger 121 and the second heat exchanger 122 and are located on both sides in the width direction of the gap.

[0077] The two nozzles 22 should be at the same horizontal height. At the same time, the installation angles of the two side nozzles 22 should be biased in different directions, that is, if one nozzle 22 shoots towards the first heat exchanger 121, then the other nozzle 22 shoots towards the second heat exchanger 122; or if one nozzle 22 shoots towards the second heat exchanger 122, then the other nozzle 22 shoots towards the first heat exchanger 121. The purpose of such an arrangement is to ensure the best atomization contact area and make the most of the heat of the condenser high-temperature fins 124 as much as possible.

[0078] As Figure 14 shown in the figure, if one nozzle 22 shoots towards the first heat exchanger 121, then the other nozzle 22 shoots towards the second heat exchanger 122. The included angle between one nozzle 22 and the first heat exchanger 121 is θ1, and θ1 satisfies the relationship: 78° ≤ θ1 ≤ 82°; the included angle between the other nozzle 22 and the second heat exchanger 122 is θ2, and θ2 satisfies the relationship: 78° ≤ θ2 ≤ 82°. This ensures that the jet liquid columns ejected by the two nozzles 22 can produce a large atomization effect when hitting the fins 124 of the outdoor heat exchanger 12, increasing the contact area between the water mist and the outdoor heat exchanger 12 and making the most of the condensation heat to the greatest extent.

[0079] Similarly, as Figure 15 shown in the figure, if one nozzle 22 shoots towards the second heat exchanger 122, then the other nozzle 22 shoots towards the first heat exchanger 121. The included angle between one nozzle 22 and the second heat exchanger 122 is θ3, and θ3 satisfies the relationship: 78° ≤ θ3 ≤ 82°; the included angle between the other nozzle 22 and the first heat exchanger 121 is θ4, and θ4 satisfies the relationship: 78° ≤ θ4 ≤ 82°. This ensures that the jet liquid columns ejected by the two nozzles 22 can produce a large atomization effect when hitting the fins 124 of the outdoor heat exchanger 12, increasing the contact area between the water mist and the outdoor heat exchanger 12 and making the most of the condensation heat to the greatest extent.

[0080] As Figures 3 - 5 shown in the figure, the water injection assembly 20 further includes: a main water inlet pipe 23 and two branch water inlet pipes 24. One end of the main water inlet pipe 23 is communicated with the water outlet of the water pump 21, and the other end of the main water inlet pipe 23 is communicated with one ends of the two branch water inlet pipes 24. The other ends of the two branch water inlet pipes 24 are respectively communicated with the two nozzles 22.

[0081] That is to say, the main condensate pipe 23 draws out the condensate water in the water pump 21 and divides this part of the condensate water into two parts. The two branch condensate pipes 24 are respectively communicated with the two spray pipes 22. One part of the condensate water flows into one of the branch condensate pipes 24 and enters one of the spray pipes 22 from this branch condensate pipe 24; the other part of the condensate water flows into the other branch condensate pipe 24 and enters the other spray pipe 22 from this branch condensate pipe 24. Thus, the water pumped out by the water pump 21 is respectively led to the two spray pipes 22 so that the condensate water is ejected and atomized.

[0082] Among them, the diameter of the branch condensate pipe 24 is larger than that of the spray pipe 22, which is convenient for the assembly of the branch condensate pipe 24 and the spray pipe 22.

[0083] In some embodiments, a tee pipe is provided between the main condensate pipe 23 and the two branch condensate pipes 24 to divide the flow path of the condensate water into two parts.

[0084] After the condensate water is pumped into the water pump 21 and its energy is increased, after flowing out of the water outlet, it first flows into the main condensate pipe 23, and then is divided into two parts and flows into the two branch condensate pipes 24, so as to flow into the two spray pipes 22. Finally, it is ejected at a high speed from the spray holes 223 on the two spray pipes 22, hits the outdoor heat exchanger 12 and breaks into fine droplets and adheres to the outdoor heat exchanger 12, and is evaporated by heat and taken away by the cooling air, so as to achieve the purpose of drainage-free for the mobile air conditioner 100 in a high-humidity environment.

[0085] Among them, both the main condensate pipe 23 and the branch condensate pipe 24 can be silicone hoses.

[0086] Refer to Figures 7 - 15 As shown, the spray pipe 22 includes: a spray pipe main body 221 and two fixed baffles 222. The two fixed baffles 222 are arranged on both sides of the spray pipe main body 221 in the radial direction, and the fixed baffles 222 are fixedly connected to the outdoor heat exchanger 12. That is to say, the spray pipe main body 221 and the fixed baffles 222 are fixedly connected. The spray pipe main body 221 is provided with spray holes 223. The fixed baffles 222 are located on both sides of the spray pipe main body 221 in the radial direction, and the fixed baffles 222 are fixedly connected to the outdoor heat exchanger 12. Then the spray pipe main body 221 is fixed on the outdoor heat exchanger 12 through the fixed baffles 222 to realize the fixed installation of the spray pipe 22, which is convenient for the subsequent condensate water to be ejected from the spray holes 223 towards the indoor heat exchanger 11 to realize the evaporation of the condensate water.

[0087] The outdoor heat exchanger 12 includes: a refrigerant pipe 123 and fins 124. The refrigerant pipe 123 passes through the fins 124. The spray holes 223 are arranged facing the fins 124, and the fixed baffle 222 is fixedly connected to the fins 124. Specifically, a first insertion portion is provided on the fixed baffle 222, and a second insertion portion is provided on the fins 124. The first insertion portion and the second insertion portion are in insertion fit. Specifically, the first insertion portion and the second insertion portion are in insertion fit to fix the spray pipe 22 between two adjacent fins 124. The insertion connection makes the installation of the spray pipe 22 simple and also facilitates the subsequent disassembly and cleaning of the spray pipe 22.

[0088] Among them, the first insertion portion can be one of a slot and a protrusion, and the second insertion portion can be the other of a slot and a protrusion. The slot and the protrusion are in insertion fit with each other, so that the spray pipe 22 and the outdoor heat exchanger 12 can be fixed together.

[0089] The mobile air conditioner 100 further includes: a first base 13 and a second base 14. The second base 14 is arranged below the first base 13. The indoor heat exchanger 11 is fixed on the first base 13, and the outdoor heat exchanger 12 is fixed on the second base 14. A water spraying hole 131 communicating with the second base 14 is provided at the lowest point of the first base 13, and a water collecting tank 141 is provided on the second base 14.

[0090] Specifically, the condensed water generated on the outdoor heat exchanger 12 side is first collected on the first base 13, and then flows into the indoor heat exchanger 11 side through the water spraying hole 131 on the first base 13 (the position where the water spraying hole 131 is located is the lowest point of the first base 13, so the generated condensed water will eventually flow here). Affected by gravity, it finally flows into the water collecting tank 141 of the second base 14 (the water collecting tank 141 is at the lowest point of the second base 14, so the condensed water will collect here). The water pump 21 is installed in the water collecting tank 141. After reaching a certain water level, the water pump 21 is turned on to pump water. After entering the spray pipe 22, a jet liquid column is ejected from the spray holes 223. The jet liquid column collides with the outdoor heat exchanger 12 and is atomized into extremely small water droplets, and then is discharged by the air on the outdoor heat exchanger 12 side after being heated and evaporated.

[0091] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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.

[0092] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean 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 expressions of the above terms do not necessarily refer to the same embodiment or example.

[0093] 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 purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A mobile air conditioner, characterized in that: include: A refrigerant circuit in which the refrigerant circulates sequentially through a compressor, a condenser, a pressure reducer, and an evaporator, one of the condenser and the evaporator being an outdoor heat exchanger and the other being an indoor heat exchanger; An outdoor unit part, which is located at the lower side, the outdoor unit part includes a first housing and an outdoor fan, the compressor and the outdoor heat exchanger arranged in the first housing, and a water collecting tank is formed at the bottom of the outdoor unit part; An indoor unit part, which is located at the upper side, includes a second housing, an indoor air duct member, an indoor fan and the indoor heat exchanger arranged in the second housing, and the indoor fan is arranged in the indoor air duct member; The invention is characterized in that it further comprises: a water pumping assembly, wherein the water pumping assembly is arranged in the outdoor unit, and the water pumping assembly comprises: A water pump, wherein the water pump is arranged in the water collecting tank; A spray pipe, wherein the spray pipe and the outdoor heat exchanger are arranged opposite to each other, one end of the spray pipe is connected to the water outlet of the water pump, and the spray pipe is provided with a plurality of spray holes arranged at intervals in the height direction, and the spray holes are arranged toward the outdoor heat exchanger; The flow rate v of the condensed water at the spray hole satisfies the relationship: Wherein, Q is the flow rate of the water pump, N is the number of the spray holes, and d is the diameter of the spray holes.

2. The mobile air conditioner according to claim 1, characterized in that: The direction of the condensed water sprayed from the spray hole forms an acute angle with the outdoor heat exchanger, so that the condensed water is sprayed on the outdoor heat exchanger.

3. The mobile air conditioner according to claim 2, characterized in that: The angle between the direction of the condensed water sprayed from the spray hole and the outdoor heat exchanger is θ, and θ satisfies the relationship: 78°≤θ≤82°.

4. The mobile air conditioner according to claim 1, characterized in that: The outdoor heat exchanger includes: a first heat exchanger and a second heat exchanger, the first heat exchanger and the second heat exchanger are arranged at intervals in the air inlet direction of the outdoor wind, the nozzle is clamped between the first heat exchanger and the second heat exchanger, and the nozzle is arranged toward the first heat exchanger or the second heat exchanger.

5. The mobile air conditioner according to claim 4, characterized in that: There are two nozzles, and the two nozzles are spaced apart in the width direction, wherein one of the nozzles is disposed toward one of the first heat exchanger and the second heat exchanger, and the other nozzle is disposed toward the other of the first heat exchanger and the second heat exchanger.

6. The mobile air conditioner according to claim 5, characterized in that: The water pumping assembly also includes: a main water pipe and two branch water pipes, one end of the main water pipe is connected to the water outlet of the water pump, and the other end of the main water pipe is connected to one end of the two branch water pipes, and the other ends of the two branch water pipes are respectively connected to the two nozzles.

7. The mobile air conditioner according to claim 1, characterized in that: The nozzle comprises: a nozzle body and two fixed baffles, wherein the two fixed baffles are arranged on both sides of the nozzle body in a radial direction, and the fixed baffles are fixedly connected to the outdoor heat exchanger.

8. The mobile air conditioner according to claim 7, characterized in that: The outdoor heat exchanger comprises: a refrigerant pipe and a fin, the refrigerant pipe passes through the fin, the spray hole is arranged toward the fin, and the fixed baffle is fixedly connected to the fin.

9. The mobile air conditioner according to claim 8, characterized in that: The fixed baffle is provided with a first plug-in portion, and the fin is provided with a second plug-in portion, and the first plug-in portion and the second plug-in portion are plug-fitted.

10. The mobile air conditioner according to claim 1, characterized in that: Also includes: A first base and a second base, the second base is arranged below the first base, the indoor heat exchanger is fixed on the first base, the outdoor heat exchanger is fixed on the second base, a water hole connected to the second base is arranged at the lowest point of the first base, and the water collecting tank is arranged on the second base.

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