CN216976983U - Mobile air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning, and discloses a mobile air conditioner which comprises an air outlet box body, an air outlet fan, an air return box body, an air return fan, a compressor, a four-way valve, a first heat exchanger, a second heat exchanger and a throttling device, wherein the air outlet box body is constructed with an air outlet duct, an air inlet and an air outlet, and the air inlet and the air outlet are arranged oppositely; the air outlet fan is arranged in the air outlet duct and used for driving air to move from the air inlet to the air outlet, and the air outlet fan is an axial flow fan; the air return box body is fixedly connected with the air outlet box body, and is provided with an air return duct, an air return inlet and an air outlet; and the air return fan is arranged in the air return air channel and used for driving air to move from the air return inlet to the air outlet. The compressor, the four-way valve, the first heat exchanger, the throttling device and the second heat exchanger are sequentially connected to form a refrigerant circulation loop, the first heat exchanger is located in the return air duct, and the second heat exchanger is located in the outlet air duct.

Description

Mobile air conditioner

Technical Field

The present application relates to the field of air conditioning technology, for example, to a mobile air conditioner.

Background

At present, an air conditioner generally includes an indoor unit and an outdoor unit which are fixedly installed, and when a space needs to be cooled or heated temporarily, it takes time and labor to install the fixed air conditioner, and therefore, the use of the movable air conditioner in some specific fields is more and more common.

In the prior art, a mobile air conditioner is disclosed, comprising: the heat exchange device comprises a heat exchange loop, a heat exchanger and a heat exchanger, wherein the heat exchange loop comprises a compressor, a second heat exchanger and a first heat exchanger which are sequentially connected to form a closed loop, and the second heat exchanger is arranged at the upper end of the first heat exchanger; the air exhaust assembly is used for enabling indoor air to reenter the room after flowing through the second heat exchanger, and the air exhaust assembly is arranged opposite to the second heat exchanger; and the air exchange assembly is used for sending indoor air out of the room after passing through the first heat exchanger and is arranged opposite to the first heat exchanger.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in a smaller space, the movable air conditioner can perform normal refrigeration and heating, but for a larger space or an open space such as a factory building, the refrigeration and heating capacity of the movable air conditioner is limited, and the requirement of a user cannot be met.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a movable air conditioner to solve the problem of how to improve the cooling and heating capacity of the movable air conditioner.

In some embodiments, the mobile air conditioner comprises an air outlet box body, an air outlet fan, a return air box body, a return air fan, a compressor, a four-way valve, a first heat exchanger, a second heat exchanger and a throttling device, wherein the air outlet box body is configured with an air outlet duct and an air inlet and an air outlet which are communicated with the air outlet duct, and the air inlet and the air outlet are arranged oppositely; the air outlet fan is arranged in the air outlet duct and used for driving air to move from the air inlet to the air outlet, and the air outlet fan is an axial flow fan; the return air box body is fixedly connected with the air outlet box body, and is provided with a return air duct, a return air inlet and an air outlet which are communicated with the return air duct; the air return fan is arranged in the air return duct and used for driving air to move from the air return inlet to the air outlet; the compressor is fixed on the return air duct; the first interface of the four-way valve is connected with the air inlet of the compressor, and the second interface of the four-way valve is connected with the air outlet of the compressor; the first heat exchanger is arranged in the return air duct, the first end of the first heat exchanger is connected to a third interface of the four-way valve, and air flows through the first heat exchanger and exchanges heat with the first heat exchanger when moving from the return air inlet to the air outlet; the second heat exchanger is arranged in the air outlet duct, the first end of the second heat exchanger is connected to a fourth interface of the four-way valve, and air flows through the second heat exchanger and exchanges heat with the second heat exchanger when moving from the air inlet to the air outlet; two ends of the throttling device are respectively connected to the second end of the first heat exchanger and the second end of the second heat exchanger, wherein the four-way valve can be switched between a first state and a second state to realize the switching of the flow direction of a refrigerant; the first state is that the first interface is communicated with the third interface, and the second interface is communicated with the fourth interface; in the second state, the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface.

In the embodiment of the disclosure, the mobile air conditioner includes a refrigerant circulation system and an air circulation system. The refrigerant circulating system comprises a compressor, a first heat exchanger, a throttling device and a second heat exchanger which are sequentially connected through a refrigerant pipeline. The air circulation system comprises an air outlet system and an air return system. The air outlet system comprises an air outlet box body, an air outlet fan and a second heat exchanger. The air outlet box body is provided with an air outlet duct, the air inlet and the air outlet are arranged oppositely, and the air outlet duct is a straight air duct. Therefore, the air output of the air outlet system of the mobile air conditioner can be increased under the condition of certain fan power. The air outlet fan is an axial flow fan, and the moving direction of air in the air outlet duct is consistent with the direction of a motor shaft of the air outlet fan. The direction of the air entering the air outlet duct and leaving the air outlet duct is not changed, so that the air quantity of the air outlet fan is large and the air supply distance is long. In a larger space or an open space, the movable setting position is far away from a user, so that the influence of fan noise on the user can be reduced, and the wind blown out by the mobile air conditioner can be dispersed by utilizing the characteristic of far air outlet distance, thereby obtaining more uniform refrigerating and heating effects. The air return system comprises an air return box body, a first heat exchanger and an air return fan. The air return box body is provided with an air return opening and an air outlet, and air enters the air return box body from the air return opening, exchanges heat with the first heat exchanger and then is discharged out of the air return box body from the air outlet.

In some embodiments, the mobile air conditioner further comprises a fixing bracket, one end of the fixing bracket is connected to the air return box body, and the other end of the fixing bracket is connected to the air outlet box body; the air return box body is fixedly connected to the air outlet box body through the fixing support, and a certain distance is reserved between the air return box body and the air outlet box body.

In some embodiments, the fixing bracket is vertically arranged, and the air outlet box body is located above the air return box body.

In some embodiments, the mobile air conditioner further comprises a plurality of casters disposed at the bottom of the return air cabinet.

In some embodiments, the air return fan is an axial flow fan, and the air return opening is opposite to the air outlet.

In some embodiments, the return air inlet of the return air box body of the mobile air conditioner is larger than the air outlet of the return air box body.

In some embodiments, the air outlet direction of the air outlet box body air outlet is different from the air outlet direction of the air return box body air outlet.

In some embodiments, the mobile air conditioner further comprises a first filter screen and/or a second filter screen, wherein the first filter screen is arranged at the air return opening; and the second filter screen is arranged at the air inlet.

In some embodiments, the throttling device is a capillary tube, and a first port of the capillary tube is connected to the first heat exchanger and a second port of the capillary tube is connected to the second heat exchanger.

In some embodiments, the mobile air conditioner further includes an air exhaust duct connected to the air outlet, and configured to guide the air exhausted from the air return box to a set area.

The mobile air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

1. the air outlet and the air return inlet of the air outlet box body are oppositely arranged, and the air outlet fan is a centrifugal fan, so that the air output of the air outlet box body can be greatly improved, on one hand, the environment is cooled or heated through air formed by heat exchange with the second heat exchanger, on the other hand, the air flow speed of the environment where the air is located can be improved through larger air output, and therefore the ventilation function is realized;

2. the compressor is arranged in the return air duct, which is beneficial to the heat dissipation of the compressor;

3. the four-way valve is arranged, so that the mobile air conditioner can realize the functions of refrigeration and heating.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a mobile air conditioner provided in an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another mobile air conditioner provided in the embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another mobile air conditioner provided by the embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a mobile air conditioner with a portion of a housing removed according to an embodiment of the present disclosure;

fig. 5 is a schematic structural view of another mobile air conditioner provided by the embodiment of the present disclosure with a part of a housing removed;

fig. 6 is a schematic diagram of a refrigerant cycle of the mobile air conditioner according to the embodiment of the disclosure.

Reference numerals:

100: an air outlet box body; 110: an air outlet duct; 120: an air inlet; 130: an air outlet; 140: an air outlet fan;

200: a return air box body; 210: an air return duct; 220: an air return opening; 230: an air outlet; 240: a return air fan;

310: a compressor; 320: a first heat exchanger; 330: a throttling device; 340: a second heat exchanger; 350: a four-way valve; 351: a first interface; 352: a second interface; 353: a third interface; 354: a fourth interface;

400: fixing a bracket;

500: a caster wheel;

600: a second filter screen;

700: a second mesh enclosure.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1 to 6, an embodiment of the present disclosure provides a mobile air conditioner, including an air outlet box 100, an air outlet fan 140, an air return box 200, an air return fan 240, a compressor 310, a four-way valve 350, a first heat exchanger 320, a second heat exchanger 340, and a throttling device 330, where the air outlet box 100 is configured with an air outlet duct 110, and an air inlet 120 and an air outlet 130 communicated with the air outlet duct 110, and the air inlet 120 and the air outlet 130 are disposed opposite to each other; the air outlet fan 140 is arranged in the air outlet duct 110 and used for driving air to move from the air inlet 120 to the air outlet 130, and the air outlet fan 140 is an axial flow fan; the air return box body 200 is fixedly connected with the air outlet box body 100, and the air return box body 200 is provided with an air return duct 210, an air return inlet 220 communicated with the air return duct 210 and an air outlet 230; a return air fan 240 disposed in the return air duct 210 for driving air to move from the return air inlet 220 to the exhaust outlet 230; a compressor 310 fixed to the return air duct 210; a four-way valve 350, a first interface 351 connected to the air inlet of the compressor 310, and a second interface 352 connected to the air outlet of the compressor 310; the first heat exchanger 320 is arranged in the return air duct 210, the first end of the first heat exchanger is connected to the third interface 353 of the four-way valve 350, and air flows through the first heat exchanger 320 and exchanges heat with the first heat exchanger 320 when moving from the return air inlet 220 to the exhaust outlet 230; the second heat exchanger 340 is arranged in the air outlet duct 110, and a first end of the second heat exchanger 340 is connected to the fourth port 354 of the four-way valve 350, so that air flows through the second heat exchanger 340 and exchanges heat with the second heat exchanger 340 when moving from the air inlet 120 to the air outlet 130; and a throttling device 330 having two ends respectively connected to the second end of the first heat exchanger 320 and the second end of the second heat exchanger 340, wherein the four-way valve 350 is switchable between a first state and a second state, when the four-way valve 350 is in the first state, the first port 351 is communicated with the third port 353, and the second port 352 is communicated with the fourth port 354. When the four-way valve 350 is in the second state, the first port 351 is communicated with the fourth port 354, and the second port 352 is communicated with the third port 353.

In the embodiment of the disclosure, the mobile air conditioner includes a refrigerant circulation system and an air circulation system. The refrigerant circulation system includes a compressor 310, a first heat exchanger 320, a throttling device 330, and a second heat exchanger 340, which are sequentially connected by a refrigerant pipe. The air circulation system comprises an air outlet system and an air return system.

When the four-way valve 350 is in the first state, the first interface 351 is communicated with the third interface 353, the second interface 352 is communicated with the fourth interface 354, the high-temperature gaseous refrigerant discharged by the compressor 310 enters the first heat exchanger 320, the temperature of the high-temperature gaseous refrigerant is reduced through the first heat exchanger 320, the high-temperature gaseous refrigerant is throttled by the throttling device 330 to become a liquid refrigerant, the liquid refrigerant enters the second heat exchanger 340, and a large amount of heat is evaporated and absorbed in the second heat exchanger 340 to enter the air inlet end of the compressor 310. When the four-way valve 350 is in the first state, the mobile air conditioner operates in a cooling mode. The following description will be made by taking the cooling mode of the mobile air conditioner as an example.

The air outlet system comprises an air outlet box 100, an air outlet fan 140 and a second heat exchanger 340. The air outlet box 100 is configured with an air outlet duct 110, the air inlet 120 and the air outlet 130 are disposed oppositely, and the air outlet duct 110 is a straight duct. Therefore, the air output of the air outlet system of the mobile air conditioner can be improved under the condition of certain fan power.

The air outlet fan 140 is an axial flow fan, and the moving direction of the air in the air outlet duct 110 is the same as the direction of the motor shaft of the air outlet fan 140. The direction of the air entering the air outlet duct 110 and leaving the air outlet duct 110 is not changed, so that the air quantity of the air outlet fan 140 is large and the air supply distance is long. In a larger space or an open space, the movable setting position is far away from a user, so that the influence of fan noise on the user can be reduced, and the wind blown out by the mobile air conditioner can be dispersed by utilizing the characteristic of far air outlet distance, thereby obtaining more uniform refrigeration effect.

The air outlet fan 140 is in the form of an axial flow fan, and is simple to install and low in cost.

The return air system includes a return air tank 200, a first heat exchanger 320, and a return air blower 240. The return air case 200 is configured with a return air opening 220 and a discharge air opening 230, and air enters the return air case 200 from the return air opening 220, passes through the first heat exchanger 320 to radiate heat to the first heat exchanger 320 and increase in temperature, and is then discharged out of the return air case 200 from the discharge air opening 230.

The return air system is provided to dissipate heat of the first heat exchanger 320 so that the air conditioner can be continuously cooled, and the return air inlet 220 of the exhaust system is under negative pressure to suck air in the environment where the mobile air conditioner is located into the exhaust air duct and exhaust the air through the exhaust outlet 230, so that air flow in the space where the air conditioner is located can be promoted. The hot air discharged from the discharge port 230 may be discharged in a form determined according to a usage scenario. For example, when cooling a high temperature outdoor worker, the air supply opening faces the outdoor worker or the position where the outdoor worker is located, and the hot air discharged from the air discharge opening 230 may not face the outdoor worker. In the case where the overall temperature of the environment in which the mobile air conditioner is located is not likely to decrease, for example, in the case of cooling in the furnace front operation of an iron works, the air supply opening may be directed to the furnace front operation position, and the hot air blown from the air discharge opening 230 may not be directed to the furnace front operation position. In the case where there is a possibility that the temperature of the environment in which the mobile air conditioner is located is lowered, for example, in a closed or semi-closed factory building for non-high temperature operation, the hot air discharged from the outlet 130 can be discharged to the outside to lower the overall temperature of the environment.

Optionally, the mobile air conditioner further includes an exhaust duct connected to the exhaust outlet 230 for guiding the air exhausted from the return air box 200 to a set area, where the set area may be an outdoor area or other areas without affecting the air-out effect or the indoor temperature. The air outlet 130 of the mobile air conditioner blows out cold air, and the position towards which the air outlet 130 faces is a preset cooling position. The hot air is discharged from the air outlet 230, and the air outlet 230 is connected to an air discharging pipe, so that the hot air discharged from the air outlet box 100 can be discharged to a preset position as required. For example, hot air is discharged to the other side of the preset cool-down position or hot air is discharged to the outside of the environment where the air conditioner is located. The air exhaust pipeline is arranged, so that the air exhaust mode of the mobile air conditioner is more flexible.

Optionally, the exhaust duct is a flexible hose. Can decide the mode of airing exhaust through the trend that sets up flexible hose, mobile air conditioner's use mode is more nimble. For example, one end of the exhaust duct is connected to the exhaust port 230, and the other end extends out of the window or the door, or is connected to a predetermined exhaust port.

Optionally, the mobile air conditioner further includes an electric heating device disposed in the air outlet duct 110. Under the condition of higher heating capacity requirement of the mobile air conditioner, the electric heating device can be opened to improve the temperature of the outlet air.

Optionally, the mobile air conditioner further includes a fixing bracket 400, one end of the fixing bracket 400 is connected to the return air box 200, and the other end is connected to the outlet air box 100; wherein, the return air box 200 is fixedly connected to the outlet air box 100 through the fixing bracket 400, and a certain distance is provided between the return air box 200 and the outlet air box 100.

Although the outlet box 100 and the return box 200 are independent of each other in the air circulation system, the refrigerant circulation system is located in both the outlet box 100 and the return box 200. Since the refrigerant pipe for connecting the refrigerant circulation system is a copper pipe, the relative position between the outlet box 100 and the return box 200 needs to be kept constant. The temperatures in the air outlet box 100 and the air return box 200 are different, and the close arrangement of the air outlet box 100 and the air return box 200 can cause the heat in the air return box 200 to be transferred to the air outlet box 100, which affects the refrigeration efficiency of the air conditioner. The fixed support 400 is arranged, so that the air outlet box body 100 and the air return box body 200 can be separated, and the refrigeration effect of the mobile air conditioner is improved.

Optionally, the fixing bracket 400 is vertically disposed, and the outlet box 100 is located above the return box 200.

The air outlet box 100 is located above the air return box 200, and the air outlet box 100 blows cold air from above. The cold wind blows to predetermineeing the cooling position, and the density of cold air is less than the density of hot-air, and the cold air falls down, can make predetermineeing the cooling position and covered by the cold air cage to obtain better cooling effect. In this case, the fixing bracket 400 serves to structurally connect the outlet case 100 and the return case 200, on the one hand, and also serves to increase the height of the outlet case 100, on the other hand. The air outlet box 100 is higher, which is beneficial to better refrigerating the mobile air conditioner. Moreover, the compressor 310 is arranged in the return air box body 200, the whole weight of the return air box body 200 is large, the air outlet box body 100 is arranged above the return air box body 200, and the mobile air conditioner can be more stable when standing on the ground.

Optionally, the mobile air conditioner further includes a plurality of casters 500 disposed at the bottom of the return air cabinet 200.

The caster 500 is provided at the bottom of the return air cabinet 200, which is convenient for a user to move the mobile air conditioner in a space.

Optionally, the caster 500 of the mobile air conditioner is a caster 500 with lock, and when the mobile air conditioner performs cooling, the caster 500 with lock is locked to prevent the air conditioner mover from moving in the cooling process.

Optionally, the return air fan 240 is an axial flow fan, and the return air inlet 220 is disposed opposite to the exhaust outlet 230.

The return air fan 240 is an axial flow fan, and the moving direction of air in the return air duct 210 is the same as the direction of the motor shaft of the return air fan 240. The direction of the air as it enters the return air duct 210 and leaves the return air duct 210 does not change, so the volume of the return air fan 240 is large and the distance for which it is supplied is long. The air quantity is large, cooling of the refrigerant in the first heat exchanger 320 is facilitated, the air supply distance is long, hot air can be sent to an area far away from a preset cooling position, and the refrigeration effect of the mobile air conditioner can be improved. In addition, air outlet fan 140 is an axial flow fan, and is simple to install and low in cost.

Optionally, the mobile air conditioner return air inlet 220 is larger than the air outlet 230. When air enters the return air duct 210 from the return air inlet 220, the smaller the return air inlet 220 is, the larger the negative pressure at the return air inlet 220 is caused by the return air fan 240, and the faster the air speed at the return air inlet 220 is. The negative pressure tends to draw dust or debris near the return air inlet 220 into the return air duct 210, and the wind speed tends to cause loud noise. Therefore, the large return air inlet 220 can prevent foreign materials from being sucked into the return air duct 210, and can reduce noise generated when the mobile air conditioner is operated. In addition, the larger air inlet 120 can also increase the amount of air in the air return process, and further, the heat dissipation effect of the first heat exchanger 320 is improved. The air outlet 230 is used for discharging hot air passing through the first heat exchanger 320, and when the air outlet 230 is connected with an air outlet duct, the diameter of the air outlet duct is larger than or equal to that of the air outlet 230. Therefore, the exhaust air should not be too large. The return air inlet 220 of the mobile air conditioner is larger than the air outlet 230, so that the air circulation capacity of the mobile air conditioner can be improved, and the running noise of the mobile air conditioner can be reduced.

Optionally, the outlet direction of the outlet 130 of the outlet box of the mobile air conditioner is different from the outlet direction of the outlet 230 of the return box.

The direction of air outlet 130 is different from the direction of air exit 230, and air outlet 130 blows cold air to predetermineeing the cooling position, and the hot air of air exit 230 is discharged to other positions. The air outlet 130 and the air outlet 230 have different air exhaust directions, and in some scenarios, the air outlet 230 can directly exhaust air without an air exhaust duct. The arrangement mode facilitates the use of the mobile air conditioner.

Optionally, the mobile air conditioner further includes a first filter screen disposed at the air return opening 220.

The air return opening 220 is provided with a first filter screen for filtering the air flowing through the air return duct 210, so as to prevent the dust entering the air return duct 210 from attaching to the first heat exchanger 320 to affect the heat dissipation effect of the first heat exchanger 320. And large particles of foreign matters entering the return air duct 210 along with the air can be prevented from knocking the heat exchanger and the second heat exchanger 340 to cause faults.

Optionally, the mobile air conditioner further includes a second filter screen 600 disposed at the air inlet 120.

The second filter screen 600 disposed at the air inlet 120 can filter the air flowing through the air outlet duct 110, so as to prevent dust entering the air outlet duct 110 from attaching to the second heat exchanger 340 and affecting the cooling capability of the second heat exchanger 340.

Optionally, the movable air conditioner further includes a first mesh cover, and the first mesh cover is disposed at the air return opening 220. The return air inlet 220 is located in the return air box 200, the position of the return air inlet 220 is relatively low, and the return air inlet 220 is provided with a first mesh enclosure which can prevent foreign matters from entering the return air duct 210 in the use process of the mobile air conditioner.

Optionally, the movable air conditioner further includes a second mesh cover 700, and the second mesh cover 700 covers the air inlet 120. The air inlet 120 is provided with a second mesh enclosure 700, so that foreign matters can be prevented from entering the return air duct 210 during the use of the mobile air conditioner, and occupational injuries of the mobile air conditioner during refrigeration can also be avoided.

Alternatively, the throttling device 330 is a capillary tube, and a first port of the capillary tube is connected to the first heat exchanger 320 and a second port is connected to the second heat exchanger 340.

The capillary tube is low in cost and high in working stability, and the throttling device 330 is the capillary tube, so that the cost of the movable air conditioner can be reduced, and the working stability of the movable air conditioner is improved.

Optionally, the second heat exchanger 340 is at least partially disposed in the air outlet duct 110 in an inclined manner.

Under the condition that the size of the air outlet duct 110 is fixed, at least part of the second heat exchanger 340 is obliquely arranged, so that the heat exchange area of the second heat exchanger 340 can be increased, and the refrigerating capacity of the mobile air conditioner is improved.

Optionally, the first heat exchanger 320 is at least partially disposed at an incline within the return duct.

Under the condition that the size of the return air duct 210 is fixed, the first heat exchanger 320 is at least partially arranged in an inclined manner, so that the heat exchange area of the first heat exchanger 320 can be increased, and the refrigerating capacity of the mobile air conditioner can be improved.

When the four-way valve 350 is in the second state, the first port 351 is communicated with the fourth port 354, the second port 352 is communicated with the third port 353, the high-temperature gaseous refrigerant discharged by the compressor 310 enters the second heat exchanger 340, the temperature of the high-temperature gaseous refrigerant is reduced through the second heat exchanger 340, the high-temperature gaseous refrigerant is throttled by the throttling device 330 into liquid refrigerant, the liquid refrigerant enters the first heat exchanger 320, and a large amount of heat is evaporated and absorbed in the first heat exchanger 320 and enters the air inlet end of the compressor 310. When the four-way valve 350 is in the second state, the mobile air conditioner operates in the heating mode.

When the mobile air conditioner operates in a heating mode, air in the environment where the mobile air conditioner is located enters the air inlet duct through the air inlet, is raised in temperature through the second heat exchanger 340, and is blown to the preset cooling position through the air outlet 130. Air of the environment in which the mobile air conditioner is located enters the return air duct 210 through the return air inlet 220. Even in the heating mode, the air temperature of the environment where the mobile air conditioner is located is higher than that of the first heat exchanger 320, so the first heat exchanger 320 can collect low-grade heat in the air by means of refrigerant evaporation. The air is temperature-lowered by the first heat exchanger 320 and discharged from the discharge outlet 230. And the heat generated by the operation of the compressor 310 is also removed. The mobile air conditioner is provided with the four-way valve 350, so that the refrigeration and heating states can be switched, and the functions of the mobile air conditioner are enriched.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A mobile air conditioner, comprising:

the air outlet box body is provided with an air outlet duct, an air inlet and an air outlet which are communicated with the air outlet duct, and the air inlet and the air outlet are arranged oppositely;

the air outlet fan is arranged in the air outlet duct and used for driving air to move from the air inlet to the air outlet, and the air outlet fan is an axial flow fan;

the air return box body is fixedly connected with the air outlet box body, and is provided with an air return duct, and an air return inlet and an air outlet which are communicated with the air return duct;

the air return fan is arranged in the air return duct and used for driving air to move from the air return inlet to the air outlet;

the compressor is fixed on the return air duct;

the first interface of the four-way valve is connected with the air inlet of the compressor, and the second interface of the four-way valve is connected with the air outlet of the compressor;

the first heat exchanger is arranged in the return air duct, the first end of the first heat exchanger is connected to a third interface of the four-way valve, and air flows through the first heat exchanger and exchanges heat with the first heat exchanger when moving from the return air inlet to the air outlet;

the second heat exchanger is arranged in the air outlet duct, the first end of the second heat exchanger is connected to a fourth interface of the four-way valve, and air flows through the second heat exchanger and exchanges heat with the second heat exchanger when moving from the air inlet to the air outlet;

the two ends of the throttling device are respectively connected to the second end of the first heat exchanger and the second end of the second heat exchanger;

the four-way valve can be switched between a first state and a second state, so that the flow direction of a refrigerant is switched; the first state is that the first interface is communicated with the third interface, and the second interface is communicated with the fourth interface; in the second state, the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface.

2. The mobile air conditioner of claim 1, further comprising:

one end of the fixed support is connected with the air return box body, and the other end of the fixed support is connected with the air outlet box body; the air return box body is fixedly connected with the air outlet box body through the fixed support, and a certain distance is reserved between the air return box body and the air outlet box body.

3. The mobile air conditioner according to claim 2,

the fixed support is vertically arranged, and the air outlet box body is located above the air return box body.

4. The mobile air conditioner of claim 3, further comprising:

and the casters are arranged at the bottom of the air return box body.

5. The mobile air conditioner according to claim 1,

the air return fan is an axial flow fan, and the air return opening is opposite to the air outlet.

6. The mobile air conditioner according to claim 1,

and the air return opening of the air return box body is larger than the air exhaust opening of the air return box body.

7. The mobile air conditioner according to claim 1,

the air outlet direction of the air outlet box body air outlet is different from the air outlet direction of the air return box body air outlet.

8. The mobile air conditioner of claim 1, further comprising:

the first filter screen is arranged at the air return opening of the air return box body; and/or the presence of a gas in the atmosphere,

and the second filter screen is arranged at the air inlet of the air outlet box body.

9. The mobile air conditioner according to claim 1,

the throttling device is a capillary tube, a first port of the capillary tube is connected to the first heat exchanger, and a second port of the capillary tube is connected to the second heat exchanger.

10. The mobile air conditioner according to any one of claims 1 to 9, further comprising:

and the air exhaust pipeline is connected with the air outlet and used for guiding the air exhausted by the air return box body to a set area.

Images