WO2021046981A1 - Mobile air conditioner and control method therefor - Google Patents

Abstract

A mobile air conditioner, comprising a cold storage system, a refrigeration system, a heat exhaust air duct (26) and a cold supply air duct (34). The cold storage system comprises a cold storage condenser (21) and a cold storage evaporator (22) that communicate with each other; the refrigeration system comprises a cold acquisition heat exchanger (31) and a cold supply heat exchanger (32) that communicate with each other; the heat exhaust air duct (26) has a first air inlet (11) and a first air outlet (12) that communicate with the outside, and the cold storage condenser (21) is provided in the heat exhaust air duct (26); and the cold supply air duct (34) has a second air inlet (13) and a second air outlet (14) that communicate with the outside, and the cold supply heat exchanger (32) is provided in the cold supply air duct (34). Further proposed by the present application is a control method for the mobile air conditioner.

Description

Mobile air conditioner and its control method To

Related application

This application requires the application on September 10, 2019, the application number is 201910858040.2, the Chinese patent application named "Mobile air conditioner and its control method", and the application on September 10, 2019, the application number is 201921509057.9, the name is "Mobile Priority of Chinese patent application for air conditioner.

Technical field

This application relates to the field of air conditioning technology, and in particular to a mobile air conditioner and a control method thereof.

Background technique

Conventional mobile air conditioners have the advantages of small size, installation-free, movable, and the cooling effect in a local area is faster than ordinary air conditioners, etc. However, conventional mobile air conditioners are often connected with a thicker exhaust pipe for external heat dissipation. The setting limits the flexibility and convenience of mobile air conditioners to a certain extent.

In view of the above-mentioned mobile air conditioner’s limited mobility and convenience, the prior art proposes a mobile air conditioner that includes a cold storage system and a refrigeration system (responsible for taking and delivering cold). When the refrigeration system is running, there is no need to start compression. (The compressor only works during the cold storage process of the cold storage system). Therefore, the mobile air conditioner does not generate additional heat during the process of cooling the environment, so there is no need to install an exhaust duct. However, the prior art still has the following technical problems: when cold storage, the wind blows out hot air after passing through the cold storage condenser; when sending cold air, the wind blows out cold wind after passing through the cold-sending heat exchanger. Hot air and cold air are blown out from the same air duct, resulting in cold storage and cold delivery cannot be performed at the same time, that is to say, the cold storage system and the refrigeration system cannot work at the same time.

Application content

The main purpose of this application is to propose a mobile air conditioner, which aims to solve the technical problem that the hot air and cold air of the mobile air conditioner in the prior art are blown out of the same air duct, which causes the cold storage and cold delivery to not be performed at the same time.

In order to achieve the above objective, this application proposes a mobile air conditioner, the mobile air conditioner including:

A cold storage system, the cold storage system includes a cold storage condenser and a cold storage evaporator, and the cold storage condenser is in communication with the cold storage evaporator;

A refrigeration system, the refrigeration system includes a cold-extracting heat exchanger and a cold-sending heat exchanger, and the cold-accepting heat exchanger is in communication with the cold-sending heat exchanger;

A hot exhaust air duct, the hot exhaust air duct has a first air inlet and a first air outlet communicating with the outside of the mobile air conditioner, and the cold storage condenser is arranged in the heat exhaust air duct;

A cold air duct, the cold air duct having a second air inlet and a second air outlet communicating with the outside of the mobile air conditioner, and the cold heat exchanger is arranged in the cold air duct.

In one embodiment, the hot exhaust air duct is located below the cold supply air duct.

In an embodiment, the first air inlet is opposite to the first air outlet, the second air inlet is opposite to the second air outlet, and the first air outlet is opposite to the second air outlet. Different direction of the tuyere.

In one embodiment, the cold storage system further includes a first fan, the first fan is arranged in the heat exhaust duct; the refrigeration system further includes a second fan, the second fan is arranged in the cold air supply Tao.

In an embodiment, the first air inlet, the first fan, and the first air outlet are connected in sequence to form the heat exhaust air duct, and the cold storage condenser is arranged between the first fan and the first air outlet. Between the first air outlet; the second air inlet, the second fan, and the second air outlet are connected in sequence to form the cooling air duct, and the cooling condenser is arranged at the second fan and Between the second air outlets.

In an embodiment, the cold storage system further includes a cold storage tank, the cold storage evaporator and the cold heat exchanger are both arranged in the cold storage box, and the cold storage condenser is located in the cold heat exchanger. The cold storage box is located below the cold storage condenser.

In an embodiment, the mobile air conditioner further includes a battery and a mobile drive device, the mobile drive device is arranged at the bottom of the cold storage box, and the battery is arranged inside the mobile drive device.

In an embodiment, the second fan includes a moving wind wheel and a static wind wheel, the static wind wheel is located on the wind outlet side of the moving wind wheel, and the static wind wheel is an axial wind wheel.

In an embodiment, the minimum distance between the wind blades of the moving wind wheel and the wind blades of the static wind wheel is 0.1 to 1.5 times the diameter of the moving wind wheel.

In one embodiment, the length of the blades of the moving wind wheel along the axial direction of the moving wind wheel is 0.2 to 0.7 times the diameter of the moving wind wheel, and the length of the blades of the static wind wheel along the axial direction of the static wind wheel It is 0.1 to 0.6 times the diameter of the moving wind wheel.

In one embodiment, an air guide tube is provided in the housing, and the air guide tube surrounds and forms a part of the cold air duct, and the moving wind wheel and the static wind wheel are both arranged on the air guide. Inside the tube.

In an embodiment, the length of the air guide tube along the axial direction of the moving wind wheel is 0.4 to 1.4 times the diameter of the moving wind wheel.

In an embodiment, the air outlet of the air guide tube is provided with an air outlet grating, and the minimum distance between the wind blades of the static wind wheel and the air outlet grating is equal to the diameter of the moving wind wheel. 0.05 times to 0.3 times.

In an embodiment, the cold sending heat exchanger includes a plurality of heat exchange tubes, and each of the heat exchange tubes is respectively connected to the liquid pump and the cold heat exchanger.

In an embodiment, each of the heat exchange tubes includes a plurality of sub-tubes that are sequentially connected and arranged in a layered arrangement, and the sub-tubes are arranged to be bent back and forth.

In one embodiment, the cold-sending heat exchanger includes two heat exchange tubes arranged in an up and down direction, the liquid inlet ends of the two heat exchange tubes are arranged adjacently, and the liquid outlet of the two heat exchange tubes The ends are arranged adjacent to each other.

This application also proposes a control method of a mobile air conditioner, the control method including:

Make sure that the mobile air conditioner is connected to an external power source, control battery charging and control the cold storage system for cold storage;

Make sure that the mobile air conditioner is disconnected from the external power supply, and the refrigeration system is controlled to take and deliver cold.

In one embodiment, the steps of determining that the mobile air conditioner is connected to an external power source, controlling battery charging and controlling cold storage of the cold storage system include:

Obtain the time required for battery charging Tc and the time required for cold storage of the cold storage system Tr, and compare Tc and Tr;

Determine Tc<Tr, control to increase the working frequency of the compressor to shorten the cold storage time.

In an embodiment, after the step of comparing Tc and Tr, the method further includes:

Determine Tc>Tr, control to reduce the working frequency of the compressor to extend the cold storage time.

In an embodiment, before the step of obtaining the time required for battery charging Tc, the time required for cold storage of the cold storage system Tr, and comparing Tc and Tr, the method further includes:

The compressor is controlled to run _{at a preset frequency H 0.}

In an embodiment, the step of determining Tc<Tr and controlling to increase the working frequency of the compressor to shorten the cold storage duration further includes:

Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₁ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 1 , where the larger the ΔT 1, the} greater the operating frequency of the compressor.

In an embodiment, the step of determining Tc>Tr and controlling to reduce the working frequency of the compressor to extend the cold storage period further includes:

Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₂ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 2 , where the larger ΔT 2} is, the smaller the operating frequency of the compressor is.

In an embodiment, the step of determining that the mobile air conditioner is disconnected from the external power supply and controlling the operation of the refrigeration system to take and deliver cold includes:

Obtain the remaining time Ts and battery life time Tx of the cold storage system, and compare Ts and Tx;

Determine Ts<Tx, and control to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold.

In an embodiment, after the step of comparing Ts and Tx, the method further includes:

Determine Ts>Tx, and judge the current state of the cold storage system;

If the current status of the cold storage system is closed, control the cold storage system to remain closed;

If the current state of the cold storage system is on, the cold storage system is controlled to close.

In an embodiment, the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can send cold further includes:

Calculate the absolute value of the difference between Ts and Tx and record it as ΔT ₃ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 3 , where the smaller ΔT 3 is, the} smaller the operating frequency of the compressor is.

In one embodiment, after the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold, the method further includes:

Compare Tx and Ty, where 3min≤Ty≤10min;

When it is determined that Tx>Ty, control the cold storage system to keep on;

When it is determined that Tx<Ty, the cold storage system is controlled to shut down.

This application also proposes a mobile air conditioner. The mobile air conditioner includes a memory, a processor, and a processing program stored in the memory and running on the processor. When the processing program is executed by the processor, The control method of the above-mentioned mobile air conditioner is realized.

This application discloses a mobile air conditioner, which separates the heat exhaust air duct in the cold storage system from the cold supply air duct in the refrigeration system, so that the two air ducts operate independently, and the air flow does not interfere with each other, so that the cold storage and cold delivery can be performed at the same time , And enables the cold storage system to perform cold storage at the same time to supplement the cold capacity when the refrigeration system is about to run out of cold capacity, and ultimately enable the mobile air conditioner to continuously deliver cold for a long time. In addition, this application also proposes a control method for a mobile air conditioner, which controls the charging of the battery and the cold storage of the cold storage system by determining the connection between the mobile air conditioner and the external power source, and controls the operation of the refrigeration system by determining that the mobile air conditioner is disconnected from the external power source By taking cold and sending cold, the automation degree of mobile air conditioner is improved to facilitate the user's use, thereby enhancing the user experience.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

Figure 1 is a schematic structural diagram of an embodiment of a mobile air conditioner according to this application;

Fig. 2 is another schematic diagram of the structure of the mobile air conditioner shown in Fig. 1;

Fig. 3 is a schematic structural diagram of another embodiment of a mobile air conditioner according to this application;

4 is a schematic diagram of the structure of the moving wind wheel, the static wind wheel and the air guide tube in the mobile air conditioner shown in FIG. 3.

Fig. 5 is a schematic cross-sectional structure diagram of the moving wind wheel, the static wind wheel and the air duct shown in Fig. 4;

Fig. 6 is a schematic diagram of the flow path of the cold-sending heat exchanger in the mobile air conditioner shown in Fig. 3.

FIG. 7 is a schematic flowchart of an embodiment of a control method for a mobile air conditioner according to this application;

FIG. 8 is a schematic flowchart of another embodiment of a control method for a mobile air conditioner according to this application;

FIG. 9 is a schematic flowchart of another embodiment of a control method for a mobile air conditioner according to this application.

Attached icon number description:

Label	name	Label	name
1	Mobile Air Conditioning	10	shell
11	The first air inlet	12	The first air outlet
13	Second air inlet	14	Second air outlet
twenty one	Cold storage condenser	twenty two	Cold storage evaporator
twenty three	Cold storage box	twenty four	compressor
25	Throttling device	26	Heat exhaust duct
27	First fan	31	Take cold heat exchanger
32	Send cold heat exchanger	33	Liquid pump
34	Cold air duct	35	Second fan
40	The first drip tray	41	Cloth water hole
50	Second drip tray	60	Water pump
70	Accumulator	80	Mobile drive
321	The first heat exchange tube	3211	The first liquid inlet
3212	The first liquid end	322	The second heat exchange tube
3221	Second inlet	3222	Second outlet
351	Moving wind wheel	352	Static wind wheel
36	Air duct	37	Out of style grid

The realization, functional characteristics, and advantages of the purpose of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of this application, the directional indications are only used to explain in a specific posture (as shown in the drawings). Show) the relative positional relationship, movement, etc. between the components below. If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as instructions or implications Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text means including three parallel schemes, taking "A and/or B" as an example, including scheme A, scheme B, or schemes in which both A and B meet. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Is not within the scope of protection required by this application.

The embodiment of the present application proposes a mobile air conditioner. The mobile air conditioner of the embodiment of the present application will be described in detail below with reference to FIG. 1 and FIG. 2.

In an embodiment of the present application, as shown in FIG. 1, the mobile air conditioner 1 includes:

A cold storage system, the cold storage system includes a cold storage condenser 21 and a cold storage evaporator 22, the cold storage condenser 21 and the cold storage evaporator 22 are in communication;

A refrigeration system, the refrigeration loop includes a cold heat exchanger 31 and a cold heat exchanger 32, and the cold heat exchanger 31 and the cold heat exchanger 32 are in communication;

The heat exhaust air duct 26 has a first air inlet 11 and a first air outlet 12 communicating with the outside of the mobile air conditioner 1, and the cold storage condenser 21 is provided in the heat exhaust air duct 26;

A cold air duct 34, the cold air duct 34 has a second air inlet 13 and a second air outlet 14 communicating with the outside of the mobile air conditioner 1, and the cold heat exchanger 32 is provided in the cold air duct 34 .

Specifically, as shown in Figures 1 and 2, the cold storage system includes a cold storage condenser 21, a cold storage evaporator 22, a cold storage tank 23, a compressor 24, and a throttling device 25. The refrigerant outlet of the compressor 24, the cold storage The condenser 21, the throttling device 25, the cold storage evaporator 22, and the refrigerant inlet of the compressor 24 are connected in sequence to form a cold storage loop. The cold storage tank 23 contains a phase change cold storage material, the cold storage evaporator 22 is arranged in the cold storage tank 23 and is at least partially immersed in the phase change cold storage material, and the cold storage loop is filled with refrigerant. Wherein, the phase change cold storage material includes but is not limited to water, and the following takes the phase change cold storage material as water as an example. After the compressor 24 works, it compresses the refrigerant. The high-temperature and high-pressure refrigerant enters the cold storage condenser 21, exchanges heat with the outside air through the operation of the heat exhaust duct 26, enters the throttling device 25, and is throttled into a low-temperature and low-pressure refrigerant. Then it enters the cold storage evaporator 22, exchanges heat with the water in the cold storage tank 23, and cools the water to ice cubes or ice-water mixture below 0°C.

The refrigeration system includes a cold heat exchanger 31, a cold heat exchanger 32 and a liquid pump 33, the outlet of the liquid pump 33, the cold heat exchanger 32, the cold heat exchanger 31 and the liquid pump 33. The inlets are connected sequentially and form a cooling loop. The cold heat exchanger 31 is arranged in the cold storage box 23 and is at least partially immersed in ice cubes or a mixture of ice and water. A refrigerant (for example, glycol solution) is filled in the cooling loop. The liquid pump 33 operates, so that the refrigerant in the cold heat exchanger 31 starts to flow. The refrigerant first exchanges heat with the ice or ice-water mixture in the cold storage tank 23 to become a low-temperature state, and then flows into the cold delivery heat exchanger 32, and exchanges heat with the indoor air through the operation of the cold delivery duct 34. And send out the cold air to cool down the indoor environment.

It is worth noting that the prior art has the following technical problems: when cold storage, the wind blows out hot air after passing through the cold storage condenser; when sending cold air, the wind blows out cold air after passing through the cold-sending heat exchanger. Hot air and cold air are blown out from the same air duct, resulting in cold storage and cold delivery cannot be performed at the same time, that is to say, the cold storage system and the refrigeration system cannot work at the same time.

The present application discloses a mobile air conditioner, which separates the heat exhaust air duct in the cold storage system from the cold air supply duct in the refrigeration system, so that the two air ducts operate independently, and the airflow does not interfere with each other, so that the cold storage and cold delivery can be simultaneously The cold storage system can simultaneously perform cold storage to supplement the cold capacity when the refrigeration system is about to run out of cold capacity, and finally enable the mobile air conditioner 1 to continuously deliver cold for a long time without interruption.

Specifically, as shown in FIG. 1, the heat exhaust air duct 26 has a first air inlet 11 and a first air outlet 12 communicating with the outside of the mobile air conditioner 1. It can be understood that the first air inlet 11 and the first air outlet 12 are both opened on the housing 10 of the mobile air conditioner 1, and the heat exhaust air duct 26 refers to the air between the first air inlet 11 and the first air outlet 12 Flowing space. After indoor air enters the heat exhaust duct 26 through the first air inlet 11, and exchanges heat with the cold storage condenser 21, the heat-carrying air is blown out through the first air outlet 12 to dissipate heat from the cold storage condenser 21.

The cooling air duct 34 has a second air inlet 13 and a second air outlet 14 communicating with the outside of the mobile air conditioner 1. It can be understood that the second air inlet 13 and the second air outlet 14 are both opened on the casing 10 of the mobile air conditioner 1, and the cooling air duct 34 refers to the air flow space between the second air inlet 13 and the second air outlet 14. After the indoor air enters the cold air duct 34 through the second air inlet 13 and exchanges heat with the cold heat exchanger 32, the cooled air is blown out through the second air outlet 14 to cool the indoor environment.

In one embodiment, as shown in FIG. 1, the heat exhaust air duct 26 is located below the cold air duct 34. It can be understood that the two air ducts are separated, and the cold storage condenser 21 and the cold delivery heat exchanger 32 respectively correspond to different air ducts, so that the cold storage and the cold delivery can operate independently or simultaneously. The cold air duct 34 is arranged closer to the top of the mobile air conditioner 1 than the hot exhaust air duct 26, so that the mobile air conditioner 1 can blow cold air toward the upper body of the user.

In one embodiment, the first air inlet 11 and the first air outlet 12 are in opposite directions, the second air inlet 13 and the second air outlet 14 are in opposite directions, and the first air outlet 12 and the second air outlet 14 are in opposite directions. Specifically, the outer shell 10 of the mobile air conditioner 1 includes a front shell, a rear shell, and two side panels extending from both ends of the front shell in the longitudinal direction to the rear shell, wherein the second air outlet 14 may be provided at On the front shell, the first air outlet 12 can be provided on the rear shell or the side plate, as long as the first air outlet 12 and the second air outlet 14 are in different directions. It can be understood that the direction of the first air outlet 12 and the direction of the second air outlet 14 are different, so that the air flows from the two air outlets can be separated from each other and discharged to the outside of the mobile air conditioner 1 independently.

Further, as shown in FIG. 1, the direction of the first air outlet 12 is opposite to the direction of the second air outlet 14. For example, the cooling air outlet is provided on the front shell (front) of the mobile air conditioner 1, and the heat exhaust air outlet is provided on the rear shell (back) of the mobile air conditioner 1, so as to avoid the cold storage process and the cooling process at the same time. The hot air blows on the user.

In one embodiment, as shown in Figures 1 and 2, the cold storage system further includes a first fan 27, which is arranged in the heat exhaust duct 26; the refrigeration system further includes a second fan 35, The fan 35 is provided in the cold air duct 34. Both the first fan 27 and the second fan 35 may be a cross flow fan, an axial flow fan, a centrifugal fan, or the like. It can be understood that the operation of the first fan 27 can speed up the flow of air in the heat exhaust air duct 26, thereby speeding up the heat exchange efficiency of the cold storage condenser 21. The operation of the cooling fan can accelerate the flow of air in the cooling air duct 34, thereby speeding up the heat exchange efficiency of the cooling heat exchanger 32.

Further, the first air inlet 11, the first fan 27, and the first air outlet 12 are sequentially connected to form the heat exhaust air duct 26, and the cold storage condenser 21 is arranged between the first fan 27 and the first air outlet 12; The two air inlets 13, the second fan 35 and the second air outlet 14 are sequentially connected to form a cooling air duct 34, and the cooling condenser is arranged between the second fan 35 and the second air outlet 14.

In one embodiment, as shown in FIG. 2, the mobile air conditioner 1 further includes a first water receiving tray 40 and a second water receiving tray 50. The first water receiving tray 40 is provided in the cold sending heat exchanger 32 and the first water receiving tray. Below the fan 27, the second drain pan 50 is provided below the cold storage condenser 21. Among them, the first water receiving tray 40 is used to receive and transport the condensed water generated by the cold heat exchanger 32 to avoid water leakage and electricity leakage of the mobile air conditioner 1 due to the condensation water dripping. Specifically, the bottom of the first water receiving pan 40 is also provided with a water distribution hole 41, and the condensed water collected by the first water receiving pan 40 can be poured into the cold storage condenser 21 through the water distribution hole 41 to help the cold storage condenser 21 cool down. Heat dissipation, thereby improving the utilization rate of condensed water and the heat exchange efficiency of the cold storage condenser 21. It can be understood that after the condensed water of the cold-sending heat exchanger 32 flows to the cold storage condenser 21 through the first water receiving tray 40, a small part of the condensed water may be heated and vaporized, but most of it still falls along the surface of the cold storage condenser 21. Therefore, By disposing the second drain pan 50 below the cold storage condenser 21, the condensed water can be collected again, and the condensed water can be prevented from dripping.

Furthermore, as shown in FIG. 2, the mobile air conditioner 1 further includes a water pump 60, the water inlet end of the water pump 60 is in communication with the second water receiving tray 50, and the water outlet end of the water pump 60 is in communication with the first water receiving tray 40. It can be understood that the condensed water falls from the first drain pan 40 to the second drain pan 50, the condensed water in the first drain pan will gradually be consumed, and the condensed water in the second drain pan 50 will gradually increase, which can be achieved by the water pump 60. The water in the second water receiving pan 50 is pumped back to the first water receiving pan 40 to recycle the condensed water and repeatedly shower it to the cold storage condenser 21 to further improve the heat exchange efficiency of the cold storage condenser 21.

In one embodiment, as shown in Figures 1 and 2, the cold storage evaporator 22 and the cold heat exchanger 31 are both arranged in the cold storage box 23, and the cold storage condenser 21 is located below the cold sending heat exchanger 32, and the cold storage box 23 is located below the cold storage condenser 21. It can be understood that since the cold storage tank 23 contains the cold storage evaporator 22, the cold heat exchanger 31, and the phase change cold storage material, the cold storage tank 23 is heavy and is placed at a lower position in the mobile air conditioner 1. In order to make the center of gravity of the mobile air conditioner 1 lower, it is beneficial to the overall stability of the mobile air conditioner 1. In addition, the compressor 24 and the throttling device 25 are both arranged between the cold-sending heat exchanger 32 and the cold storage tank 23 to shorten the length of the refrigerant pipe of the cold storage loop and make the cold storage system relatively concentrated in the middle of the mobile air conditioner 1. In order to make the structure of the entire cold storage system more compact, the volume of the entire mobile air conditioner 1 is reduced.

In one embodiment, as shown in FIG. 2, the mobile air conditioner 1 further includes a battery 70 and a mobile driving device 80, the mobile driving device 80 is provided at the bottom of the cold storage tank 23, and the battery 70 is provided inside the mobile driving device 80. It can be understood that by providing a mobile driving device 80 at the bottom of the mobile air conditioner 1, the flexibility and convenience of the movement of the mobile air conditioner 1 can be increased. In this embodiment, the mobile driving device 80 includes a roller provided at the bottom of the mobile air conditioner 1. . In addition, the battery 70 can supply power to the compressor 24, the first fan 27, the second fan 35, and the liquid pump 33, so that the mobile air conditioner 1 can operate the refrigeration system without connecting to an external power source. It is not affected. In addition, the cold storage system mainly performs cold storage when the external power supply is connected, but in the process of disconnecting the external power supply, the cold storage system can also perform cold storage due to the power supply of the battery 70.

In another embodiment of the present application, as shown in FIGS. 3 and 4, the second fan 35 includes a moving wind wheel 351 and a static wind wheel 352, and the static wind wheel 352 is located at the end of the moving wind wheel 351. On the air outlet side, the static wind wheel 352 is an axial flow wind wheel.

It is worth noting that the existing mobile air conditioners have the following technical problems: the fan in the cooling air duct adopts a cross-flow fan, and the cooling capacity of the output air is not gathered together, and it is easy to be lost around, which is not conducive to local cooling of the human body, and the cooling capacity is serious. The effective cooling capacity utilization rate is low, and the effective use time is short.

In the technical solution of this embodiment, a moving wind wheel 351 and a static wind wheel 352 are arranged in the cooling air duct 34, and the static wind wheel 352 is arranged on the air outlet side of the moving wind wheel 351, and the static wind wheel 352 adopts an axial flow type. wind mill. During the operation of the moving wind wheel 351, the blades of the moving wind wheel 351 cooperate to push the air flow in the cooling air duct, which will produce airflow in the axial direction and the airflow in the radial direction, while the blades of the static wind wheel 352 are stationary and do not rotate. , Can change the radial airflow generated by the moving wind wheel 351 into axial airflow, so as to gather the cold air out of the mobile air conditioner, improve the cooling effect on the human body, reduce the cooling loss, increase the effective cooling utilization rate, and extend the effective use time.

Further, as shown in FIG. 5, the minimum distance d1 between the blades of the moving wind wheel 351 and the wind blades of the static wind wheel 352 is 0.1 to 1.5 times the diameter of the moving wind wheel 351. It should be noted that, in the embodiment of the present application, the diameter of the moving wind wheel 351 refers to the diameter of the circle swept by the blades of the moving wind wheel 351 during the rotation. The diameter of the moving wind wheel has a great correlation with the power of the wind turbine. Generally speaking, the greater the generating power of the wind turbine, the larger the diameter of its impeller. Therefore, the corresponding moving wind wheel diameter can be set according to the required wind turbine power. It can be understood that if the distance between the blades of the moving wind wheel 351 and the blades of the static wind wheel 352 is too long or too short, it is not conducive for the blades of the static wind wheel 352 to correct the radial airflow generated by the rotation of the moving wind wheel 351. Therefore, the appropriate distance between the blades of the moving wind wheel 351 and the blades of the static wind wheel 352 can further improve the gathering effect of the wind.

Further, as shown in FIG. 5, the length d2 of the blades of the moving wind wheel 351 along the axial direction of the moving wind wheel 351 is 0.2 to 0.7 times the diameter of the moving wind wheel 351, and the blades of the static wind wheel 352 run along the static wind wheel 351. The length d3 in the axial direction of the 352 is 0.1 to 0.6 times the diameter of the movable wind wheel 351. It should be noted that the length of the blades of the moving wind wheel 351 along the axial direction of the moving wind wheel 351 is equivalent to the distance between the air inlet end surface and the air outlet end surface formed when the moving wind wheel 351 rotates.

In this embodiment, the casing 10 is provided with an air guide tube 36, the air guide tube 36 surrounds and forms a part of the cold air duct 34, and the moving wind wheel 351 and the static wind wheel 352 are both arranged in the air guide tube 36.

In this embodiment, as shown in FIG. 5, the length d4 of the air guide tube 36 along the axial direction of the moving wind wheel 351 is 0.4 to 1.4 times the diameter of the moving wind wheel 351. It can be understood that the length of the air guide tube 36 along the axial direction of the moving wind wheel 351 should not be too short or too long. Too short is not conducive to the air guide function of the air guide tube 36, that is, it is not conducive to gathering the wind, and too long will affect Beautiful.

Further, an outlet grill 37 is provided at the air outlet of the air guide tube 36, and the minimum distance d5 between the blades of the static wind wheel 352 and the outlet grill 37 is 0.05 to 0.3 times the diameter of the moving wind wheel 351 . The outlet grill 37 can protect the static wind wheel 352 and the moving wind wheel 351, and can also play a role in guiding wind to a certain extent.

Further, as shown in FIG. 6, the cold sending heat exchanger 32 includes a plurality of heat exchange tubes, and each heat exchange tube is connected to the liquid pump 33 and the cold heat exchanger 31 respectively. Specifically, the liquid inlet end of each heat exchange tube is respectively communicated with the liquid outlet end of the liquid pump 33, and the liquid outlet end of each heat exchange tube is respectively communicated with the liquid inlet end of the cold heat exchanger 31. Generally speaking, the cold-sending heat exchanger 32 is arranged on the air inlet side of the moving wind wheel 351. When the moving wind wheel 351 rotates, it drives the airflow from the first air inlet 11 into the cooling air duct, and then flows through the cooling and heat exchange first. The device 32 takes away the cold energy of the cold-sending heat exchanger 32, and then passes through the moving wind wheel 351 and the static wind wheel 352 in sequence, and finally sends out the first air outlet 12 to cool the indoor environment or the human body. However, in the prior art, only one refrigerant carrier flow path is formed in the cold sending heat exchanger 32. Because the refrigerant carrier flow path is too long, the cold capacity of the carrier refrigerant will gradually be lost. The area near the liquid outlet of the heat exchanger 32 and the area near the liquid inlet of the cold-sending heat exchanger 32 are relatively cold, so that the cold output of the cold-sending air duct is uneven. In this embodiment, the cold sending heat exchanger 32 includes a plurality of heat exchange tubes, and the plurality of heat exchange tubes respectively form independent circulating refrigerant flow paths. In this way, after the refrigerant enters the cold sending heat exchanger 32, it can be By flowing through multiple refrigerant flow paths, the entire pipe of the cold-sending heat exchanger 32 is quickly covered, shortening the flow time of the carrier, reducing the loss of cooling capacity, and making the pipe temperatures of the cold-sending heat exchanger 32 equivalent. , So that the cooling capacity of the cooling air duct 34 is uniformly output.

Further, as shown in FIG. 6, each heat exchange tube includes a plurality of branch pipes that are sequentially connected and arranged in a layered arrangement, and the branch pipes are arranged to be bent back and forth. It can be understood that, in this way, it is beneficial to extend the refrigerant flow path of the cold-sending heat exchanger 32 and reduce the occupied space of the cold-sending heat exchanger 32. In this embodiment, each heat exchange tube is composed of two stacked sub-tubes, and each sub-tube is composed of a plurality of long U tubes connected in sequence.

In this embodiment, as shown in FIG. 6, the cold-sending heat exchanger 32 includes two heat exchange tubes arranged in an up-and-down direction. The two heat exchange tubes are a first heat exchange tube 321 and a second heat exchange tube. Heat exchange tube 322. The first heat exchange tube 321 has a first liquid inlet end 3211 and a first liquid outlet end 3212, and the second heat exchange tube 322 has a second liquid inlet end 3221 and a second liquid outlet end 3222. The first liquid inlet 3211 and the second liquid inlet 3221 are adjacently arranged, and the first liquid outlet 3212 and the second liquid outlet 3222 are arranged adjacently. It can be understood that in this embodiment, the liquid inlet ends of the two heat exchange tubes are arranged adjacent to each other, which is beneficial to shorten the length of the liquid inlet branch pipes respectively connecting the two liquid inlet ends (the two liquid inlet branch pipes are connected to the main liquid inlet pipe); The liquid outlet ends of the two heat exchange tubes are arranged adjacent to each other, which is beneficial to shorten the length of the liquid outlet branch pipes respectively connecting the two liquid outlet ends (the two liquid outlet branch pipes are connected to the main liquid outlet pipe). In addition, the first heat exchange tube 321 and the second heat exchange tube 322 are arranged in the up and down direction, and the tube length of the first heat exchange tube 321 is equivalent to the tube length of the second heat exchange tube 322, which is equivalent to two independent refrigerants. The flow paths are respectively distributed in the upper half area and the lower half area of the cold-sending heat exchanger 32, so that the upper and lower temperatures of the cold-sending heat exchanger 32 are uniform, so that the cold output of the cold-sending air duct 34 is uniform.

Please refer to FIG. 7 to FIG. 9, an embodiment of the present application also discloses a control method of a mobile air conditioner.

In an embodiment of the present application, as shown in FIG. 7, the control method of the mobile air conditioner includes:

Make sure that the mobile air conditioner is connected to an external power source, control battery charging and control the cold storage system for cold storage;

Make sure that the mobile air conditioner is disconnected from the external power supply, and the refrigeration system is controlled to take and deliver cold.

In this embodiment, the mobile air conditioner includes a cold storage system, a refrigeration system and a battery. Among them, the cold storage system includes a cold storage condenser, a cold storage evaporator, a cold storage tank, a compressor, a throttling device and a first fan. After the compressor works, the refrigerant is compressed. After the high temperature and high pressure refrigerant enters the cold storage condenser, it passes through the first fan. Operation, after heat exchange with the outside air, it enters the throttling device and is throttled into a low-temperature and low-pressure refrigerant, then enters the cold storage evaporator, and exchanges heat with the phase change cold storage material in the cold storage tank (water is taken as an example in this embodiment) , Cool the water to ice cubes or ice-water mixture below 0°C. The refrigeration system includes a cold heat exchanger, a cold heat exchanger, a liquid pump and a second fan. The liquid pump runs to make the refrigerant in the cold heat exchanger start to flow. The refrigerant first exchanges heat with the ice or ice-water mixture in the cold storage tank to become a low-temperature state, and then flows into the cold heat exchanger. Through the operation of the second fan, it exchanges heat with the indoor air and transfers the cold air. Send out to cool the indoor environment.

The cold storage system and the refrigeration system are all electrically connected to the battery. Specifically, the compressor, the first fan, the second fan, and the liquid pump are all electrically connected to the battery. After the mobile air conditioner is turned on, when it is determined that the mobile air conditioner is connected to the external power supply, it controls the battery charging and controls the cold storage system; and when it is determined that the mobile air conditioner is disconnected from the external power supply, the refrigeration system is controlled to take and deliver cold. It should be noted that the cold storage system mainly performs cold storage when the external power supply is connected, but in the process of disconnecting the external power supply, the cold storage system can also perform cold storage due to the power supply of the battery.

In the technical solution of the present application, by determining the connection between the mobile air conditioner and the external power supply, the battery charging is controlled and the cold storage system is controlled for cold storage, and the mobile air conditioner is disconnected from the external power supply to control the operation of the refrigeration system to take and deliver cold. The degree of automation of the mobile air conditioner is improved to facilitate the user's use, thereby enhancing the user experience.

Further, as shown in Fig. 8, the steps of determining that the mobile air conditioner is connected to an external power source, controlling battery charging and controlling the cold storage system include:

Obtain the time required for battery charging Tc and the time required for cold storage of the cold storage system Tr, and compare Tc and Tr;

Determine Tc<Tr, control to increase the working frequency of the compressor to shorten the cold storage time.

In this embodiment, the operating frequency of the compressor is adjusted by comparing the time required for battery charging and the time required for cold storage of the cold storage system. Among them, in the case of Tc<Tr, it means that after the battery is fully charged, the user still needs to wait for the cold storage system to perform cold storage. By increasing the operating frequency of the compressor, the cold storage system's cold storage speed can be increased, thereby reducing the user's waiting for cold storage. duration.

Further, as shown in FIG. 8, after the step of comparing Tc and Tr, the method further includes:

Determine Tc>Tr, control to reduce the working frequency of the compressor to extend the cold storage time.

In the case of Tc<Tr, it means that the user does not need to wait for additional cold storage after the battery is charged, but the time required for cold storage of the cold storage system is shorter, the cold storage speed of the cold storage system is faster, and the operating frequency of the compressor is also higher. The more noise it brings, therefore, it is necessary to reduce the operating frequency of the compressor.

In one embodiment, as shown in FIG. 9, before the step of obtaining the time required for battery charging Tc, the time required for cold storage of the cold storage system Tr, and comparing Tc and Tr, the method further includes:

The compressor is controlled to run _{at a preset frequency H 0.}

Specifically, the time from zero to full charge of the battery is Tc ₁₀₀ , and the cold storage system sets the time for full cold storage of the cold storage tank as Tr ₁₀₀ , when Tc ₁₀₀ =Tr ₁₀₀ , the operating frequency of the compressor is recorded as the preset frequency H ₀ . It can be understood that at the beginning, the compressor is controlled to operate at the preset frequency H ₀ , and then Tc and Tr are compared, and after determining Tc<Tr, the compressor is controlled to increase the operating frequency and run at a working frequency _{greater than the preset frequency H 0} ; After determining Tc>Tr, control the compressor to reduce the working frequency and run at a working frequency lower _{than the preset frequency H 0.}

Further, the step of determining Tc<Tr and controlling to increase the working frequency of the compressor to shorten the cold storage duration further includes:

Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₁ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 1 , where the larger the ΔT 1, the} greater the operating frequency of the compressor.

It can be understood that the _{larger the ΔT 1} , the longer the user needs to wait for the cold storage system to perform cold storage after the battery is _{fully charged. Therefore, the larger the ΔT 1} is, the greater the operating frequency of the compressor is controlled, so as to reduce the user's waiting for cold storage as soon as possible. The length of time.

Further, the step of determining Tc>Tr and controlling to reduce the working frequency of the compressor to extend the cold storage period further includes:

Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₂ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 2 , where the larger ΔT 2} is, the smaller the operating frequency of the compressor is.

It can be understood that the _{larger the ΔT 2} , the shorter the time required for the user's cold storage system for cold storage, the faster the cold storage speed of the cold storage system, and the higher the operating frequency of the compressor. Therefore, the _{larger the ΔT 1} is, the operating frequency of the compressor is controlled. The smaller it is to keep the compressor running at a low frequency as much as possible to reduce the noise of compressor operation.

In one embodiment, as shown in FIG. 8, the step of determining that the mobile air conditioner is disconnected from the external power source and controlling the operation of the refrigeration system to take and deliver cold includes:

Obtain the remaining time Ts and battery life time Tx of the cold storage system, and compare Ts and Tx;

Determine Ts<Tx, and control to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold.

Specifically, when Ts<Tx, it means that the cold storage system consumes faster (due to faster cooling and delivery), and the battery has sufficient battery life. Therefore, the cold storage can be controlled to be turned on under the power of the battery The system performs cold storage to supplement the cold capacity of the cold storage tank, thereby extending the remaining time that the cold storage system can deliver cold.

In an embodiment, as shown in FIG. 8, after the step of comparing Ts and Tx, the method further includes:

Determine Ts>Tx, and judge the current state of the cold storage system;

If the current status of the cold storage system is closed, control the cold storage system to remain closed;

If the current state of the cold storage system is on, the cold storage system is controlled to close.

It can be understood that when Ts>Tx, it means that the cold storage system has a slower cold energy consumption rate (the cold storage tank has sufficient cold energy), and the battery power consumption rate is faster. In this case, cold storage is not required, and the battery power is also Not enough to support cold storage. Therefore, it is necessary to control the cold storage system to remain closed.

Further, the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can send cold further includes:

Calculate the absolute value of the difference between Ts and Tx and record it as ΔT ₃ ;

The operating frequency of the control compressor changes according to the change of _{ΔT 3 , where the smaller ΔT 3 is, the} smaller the operating frequency of the compressor is.

It can be understood that during the operation of the cold storage system, the _{smaller the ΔT 3} , the slower the cold energy consumption rate of the cold storage system. Therefore, the _{smaller the ΔT 3, the} lower the operating frequency of the control compressor to keep the compressor as low as possible. Frequency operation to reduce the noise of compressor operation.

In one embodiment, as shown in FIG. 9, after the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold, the method further includes:

Compare Tx and Ty, where 3min≤Ty≤10min;

When it is determined that Tx>Ty, control the cold storage system to keep on;

When it is determined that Tx<Ty, the cold storage system is controlled to shut down.

Specifically, after determining Ts<Tx and controlling the step of turning on the cold storage system, since the battery needs to supply power to the cold storage system and the refrigeration system at the same time, the battery power consumption rate is very fast. Since the battery must have a certain amount of power remaining to perform the charging step, when the battery life is insufficient, the cold storage system needs to be controlled to shut down.

The embodiment of the application also discloses a mobile air conditioner. In an embodiment of the present application, the mobile air conditioner includes: a memory, a processor, and a processing program stored in the memory and capable of running on the processor, and the processing program is implemented when the processor is executed A control method of a mobile air conditioner disclosed in any embodiment of the present application. In addition, the mobile air conditioner also includes a cold storage system, a refrigeration system, a hot exhaust duct, a cold air duct, and a battery. Please refer to the above-mentioned embodiments for specific structures of the cold storage system, refrigeration system, hot exhaust duct, cold air duct, and battery. Since the mobile air conditioner adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be repeated here.

The above are only the preferred embodiments of this application, and do not limit the scope of this application. Under the application concept of this application, equivalent structural transformations made by using the content of the specification and drawings of this application, or direct/indirect use Other related technical fields are included in the scope of patent protection of this application.

Claims (27)

1. A mobile air conditioner, wherein the mobile air conditioner includes:

   A cold storage system, the cold storage system includes a cold storage condenser and a cold storage evaporator, and the cold storage condenser is in communication with the cold storage evaporator;

   A refrigeration system, the refrigeration system includes a cold-extracting heat exchanger and a cold-sending heat exchanger, and the cold-accepting heat exchanger is in communication with the cold-sending heat exchanger;

   A hot exhaust air duct, the hot exhaust air duct has a first air inlet and a first air outlet communicating with the outside of the mobile air conditioner, and the cold storage condenser is arranged in the heat exhaust air duct;

   A cold air duct, the cold air duct having a second air inlet and a second air outlet communicating with the outside of the mobile air conditioner, and the cold heat exchanger is arranged in the cold air duct.
2. The mobile air conditioner according to claim 1, wherein the hot exhaust air duct is located below the cold supply air duct.
3. The mobile air conditioner according to claim 1, wherein the first air inlet is opposite to the first air outlet, the second air inlet is opposite to the second air outlet, and the first air outlet It is opposite to the second air outlet.
4. The mobile air conditioner according to claim 1, wherein the cold storage system further comprises a first fan, and the first fan is arranged in the heat exhaust duct; the refrigeration system further comprises a second fan, the second fan Set in the cold air duct.
5. The mobile air conditioner according to claim 4, wherein the first air inlet, the first fan, and the first air outlet are sequentially connected to form the heat exhaust air duct, and the cold storage condenser is provided in the Between the first fan and the first air outlet; the second air inlet, the second fan, and the second air outlet are sequentially connected to form the cooling air duct, and the cooling condenser is arranged at Between the second fan and the second air outlet.
6. The mobile air conditioner according to any one of claims 1 to 5, wherein the cold storage system further comprises a cold storage tank, and the cold storage evaporator and the cold heat exchanger are both installed in the cold storage tank, so The cold storage condenser is located below the cold-sending heat exchanger, and the cold storage tank is located below the cold storage condenser.
7. The mobile air conditioner according to claim 6, wherein the mobile air conditioner further comprises a battery and a mobile driving device, the mobile driving device is arranged at the bottom of the cold storage tank, and the battery is arranged inside the mobile driving device .
8. The mobile air conditioner according to claim 1, wherein the second fan includes a moving wind wheel and a static wind wheel, the static wind wheel is located on the air outlet side of the moving wind wheel, and the static wind wheel is axial flow. wind mill.
9. 8. The mobile air conditioner according to claim 8, wherein the minimum distance between the blades of the moving wind wheel and the blades of the static wind wheel is 0.1 to 1.5 times the diameter of the moving wind wheel.
10. The mobile air conditioner according to claim 8, wherein the length of the blades of the moving wind wheel along the axial direction of the moving wind wheel is 0.2 to 0.7 times the diameter of the moving wind wheel, and the wind blades of the static wind wheel are The axial length of the static wind wheel is 0.1 to 0.6 times the diameter of the moving wind wheel.
11. The mobile air conditioner according to claim 8, wherein the casing of the mobile air conditioner is provided with an air duct, and the air duct is surrounded to form a part of the cold air duct, and the moving wind wheel and the static The wind wheels are all arranged in the air guide tube.
12. The mobile air conditioner according to claim 11, wherein the length of the air guide tube along the axial direction of the moving wind wheel is 0.4 to 1.4 times the diameter of the moving wind wheel.
13. The mobile air conditioner of claim 11, wherein the air outlet of the air guide tube is provided with an outlet grille, and the minimum distance between the wind blades of the static wind wheel and the outlet grille is determined by The diameter of the moving wind wheel is 0.05 to 0.3 times.
14. The mobile air conditioner according to claim 8, wherein the cold sending heat exchanger includes a plurality of heat exchange tubes, and each of the heat exchange tubes is respectively connected to the liquid pump and the cold heat exchanger.
15. The mobile air conditioner according to claim 14, wherein each of the heat exchange tubes includes a plurality of branch pipes that are sequentially connected and arranged in a layered arrangement, and the branch pipes are arranged to be bent back and forth.
16. The mobile air conditioner according to claim 15, wherein the cold-sending heat exchanger includes two heat exchange tubes arranged in an up and down direction, and the liquid inlet ends of the two heat exchange tubes are arranged adjacently, and the two heat exchange tubes The liquid outlet ends of the heat exchange tubes are arranged adjacently.
17. A control method of a mobile air conditioner, wherein the control method includes:

    Make sure that the mobile air conditioner is connected to an external power source, control battery charging and control the cold storage system for cold storage;

    Make sure that the mobile air conditioner is disconnected from the external power supply, and the refrigeration system is controlled to take and deliver cold.
18. The control method of a mobile air conditioner according to claim 17, wherein the step of determining that the mobile air conditioner is connected to an external power source, controlling battery charging and controlling the cold storage system for cold storage comprises:

    Obtain the time required for battery charging Tc and the time required for cold storage of the cold storage system Tr, and compare Tc and Tr;

    Determine Tc<Tr, control to increase the working frequency of the compressor to shorten the cold storage time.
19. The control method of a mobile air conditioner according to claim 18, wherein after the step of comparing Tc and Tr, the method further comprises:

    Determine Tc>Tr, control to reduce the working frequency of the compressor to extend the cold storage time.
20. The control method of a mobile air conditioner according to claim 18, wherein, before the step of obtaining the time required for battery charging Tc, the time required for cold storage of the cold storage system Tr, and comparing Tc and Tr, the method further comprises:

    The compressor is controlled to run _{at a preset frequency H 0.}
21. The control method of a mobile air conditioner according to claim 18, wherein the step of determining Tc<Tr and controlling to increase the working frequency of the compressor to shorten the cold storage duration further comprises:

    Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₁ ;

    The operating frequency of the control compressor changes according to the change of _{ΔT 1 , where the larger the ΔT 1, the} greater the operating frequency of the compressor.
22. The control method of a mobile air conditioner according to claim 19, wherein the step of determining Tc>Tr and controlling to reduce the working frequency of the compressor to extend the cold storage period further comprises:

    Calculate the absolute value of the difference between Tc and Tr and record it as ΔT ₂ ;

    The operating frequency of the control compressor changes according to the change of _{ΔT 2 , where the larger ΔT 2} is, the smaller the operating frequency of the compressor is.
23. The control method of a mobile air conditioner according to claim 17, wherein the step of determining that the mobile air conditioner is disconnected from the external power source and controlling the operation of the refrigeration system to take and deliver cold comprises:

    Obtain the remaining time Ts and battery life time Tx of the cold storage system, and compare Ts and Tx;

    Determine Ts<Tx, and control to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold.
24. The control method of a mobile air conditioner according to claim 23, wherein after the step of comparing Ts and Tx, the method further comprises:

    Determine Ts>Tx, and judge the current state of the cold storage system;

    Determine that the current state of the cold storage system is closed, and control the cold storage system to remain closed;

    Make sure that the current state of the cold storage system is on, and control the cold storage system to turn off.
25. The control method of a mobile air conditioner according to claim 23, wherein the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold further comprises:

    Calculate the absolute value of the difference between Ts and Tx and record it as ΔT ₃ ;

    The operating frequency of the control compressor changes according to the change of _{ΔT 3 , where the smaller ΔT 3 is, the} smaller the operating frequency of the compressor is.
26. The control method of a mobile air conditioner according to claim 23, wherein after the step of determining Ts<Tx and controlling to turn on the cold storage system to extend the remaining time that the cold storage system can deliver cold, the method further comprises:

    Compare Tx and Ty, where 3min≤Ty≤10min;

    When it is determined that Tx>Ty, control the cold storage system to keep on;

    When it is determined that Tx<Ty, the cold storage system is controlled to shut down.
27. A mobile air conditioner, wherein the mobile air conditioner includes: a memory, a processor, and a processing program stored in the memory and capable of running on the processor, and the processing program is executed by the processor as follows: The control method of a mobile air conditioner according to any one of claims 17 to 27. To