KR20070028633A - Movable type air-conditioner - Google Patents

Abstract

A movable air conditioner is provided to offer cooling in stages of 3 steps by combining the operations of first and second compressors according to the status of the indoor space. A movable air conditioner is installed with a first compressor(200), a second compressor(220), a condenser(300), an evaporator(500) and an expansion unit. The first compressor is mounted at one side of the internal body to compress the refrigerant. The second compressor is also mounted at one side of the internal body to compress the refrigerant having a greater compress capacity than the first compressor. The individual movement of the first and the second compressors are controllable according to users' selection. An accumulator(240) is installed on one side of the body to only separate the gas refrigerant, and communicated to a first refrigerant piping(260) respectively installed at the first and the second compressors.

Description

Movable type air-conditioner

1 is a perspective view showing the appearance of a mobile air conditioner according to the prior art.

Figure 2 is a plan view schematically showing the internal configuration of a mobile air conditioner body according to the prior art.

Figure 3 is a plan view schematically showing the internal configuration of the main component of the preferred embodiment of a mobile air conditioner according to the present invention.

Figure 4 is a cycle diagram schematically showing the flow of the refrigerant when using only the first compressor which is a main component of a preferred embodiment of a mobile air conditioner according to the present invention.

Figure 5 is a cycle diagram schematically showing the flow of the refrigerant when using only the second compressor which is a main component of a preferred embodiment of a mobile air conditioner according to the present invention.

6 is a cycle diagram schematically showing the flow of the refrigerant when the first compressor and the second compressor, which are main components of the preferred embodiment of the mobile air conditioner according to the present invention, are used simultaneously.

Explanation of symbols on the main parts of the drawings

100. Body 120. Barrier

140. Outdoor 160. Indoor

200. First Compressor 220. Second Compressor

240. Accumulator 260. First refrigerant piping

300. Condenser 320. Second refrigerant piping

400. Outdoor fan 420. Outdoor motor

500. Evaporator 520. Expansion device

600. Blower 620. Blower motor

S100. 1st stage cooling S200. 2 stage cooling

S300. 3 stage cooling

The present invention relates to a mobile air conditioner, and more particularly, to a mobile air conditioner having a first compressor and a second compressor having different compression capacities in a main body to adjust a cooling capacity according to a user's operation. .

In general, an air conditioner is a cooling system that cools a room by a repetitive action of inhaling hot air in a room, exchanging heat with a low-temperature refrigerant, and then discharging it into the room. The air conditioner includes a compressor-condenser-expansion valve-evaporator. It is a device to form.

Such an air conditioner generally includes an indoor unit (or an indoor side) that exchanges heat with indoor air and an outdoor unit (or outdoor side) that exchanges heat with outdoor air, and an integrated air conditioner in which the indoor unit and the outdoor unit are integrally formed, and the indoor unit and the outdoor unit It is divided into a separate type air conditioner formed separately.

In addition, the air conditioner as described above is generally fixed to the space for cooling, it is possible to perform the cooling in a limited space. Therefore, in order to cool various spaces, air conditioners may be installed in each space, or a multi-type indoor unit may be installed in a large outdoor unit, and this may cause unnecessary installation cost.

In order to solve this problem, a portable air conditioner has been devised. Such a mobile air conditioner is published in the Republic of Korea Patent Application Publication No. 1998-048280, which is already filed, it looks at with reference to the drawings.

1 is a perspective view showing the appearance of a mobile air conditioner according to the prior art, Figure 2 is a plan view schematically showing the internal configuration of the mobile air conditioner body according to the prior art.

As shown in these figures, the mobile air conditioner according to the prior art is provided with a refrigeration cycle forcing the outdoor unit 10 and the cold air generated in the outdoor unit 10 to generate a cold air by the circulation of the refrigerant to the space for cooling It is composed of an indoor aid 70 to assist the blowing.

The interior of the outdoor unit 10 is divided into a space on the left and right by the barrier 12, one side is provided with an outdoor fan 20 and an outdoor motor 22 for forcibly suctioning and discharging the outside air, In the blowing direction by the outdoor fan 20, a condenser 24 for exchanging heat with external air is provided, and on one side of the condenser 24, a compressor 26 for compressing a low pressure refrigerant supplied from the condenser 24 is provided. ) Is provided.

In addition, the inner side of the outdoor unit 10 partitioned by the barrier 12 flows the external air to the evaporator 30 and the evaporator 30 in which the refrigerant compressed from the compressor 26 is filled. A forced blower 32 and a motor 34 are provided.

The compressor 26, the condenser 24, and the evaporator 30 in the outdoor unit 10 are all communicated by a pipe, and a cycle is formed by the flow of the refrigerant through the pipe 40. Although not shown, an expansion device (not shown) is provided at one side of the evaporator 30.

On the other hand, the air blown out through the condenser 24 is discharged to the outside through the outdoor Java (50) formed on the upper surface of the outdoor unit (10). The outdoor jabara 50 has a bellows shape that can be easily extended to allow exhaust to a position some distance away.

In addition, an outdoor grill 14 is formed at a side of the outdoor unit 10 so that air sucked from the outside may be introduced into the outdoor unit 10, and the outdoor unit 10 may be disposed on a bottom surface of the outdoor unit 10. Fixed wheel 16 and the rotation wheel 16 'for the movement of the) is formed respectively.

In addition, the air passing through the evaporator 30 is introduced into the indoor aid 70 through the indoor Java 60 formed in a bellows shape, such as the outdoor Java (50), the introduced air is the indoor aid 70 A blower fan (not shown) provided therein is forcibly discharged to the take-out grill 72 to cool the indoor space.

However, the prior art as described above has the following problems.

In the conventional configuration as described above, only one compressor 26 having a predetermined capacity is provided inside the indoor unit, thereby exhibiting only a predetermined cooling capacity.

In addition, when the mobile air conditioner is installed according to the original use intention of the air conditioner, it operates in a space having various sizes such as a bedroom and a living room study room. In this case, when the space for cooling becomes larger than the capacity of the compressor 26, the cooling is performed. Problems arise that are not effective.

In addition, when the space for cooling becomes smaller than the capacity of the compressor 26, there is a problem that the loss of power occurs by the operation of the compressor 26 larger than the required capacity.

That is, a problem arises that a limitation occurs in the mobility of the intended use of the mobile air conditioner.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, the first and second compressors having different compression capacities are provided inside the main body to adjust the cooling capacity according to the user's operation. To provide a portable air conditioner.

Mobile air conditioner according to the present invention for achieving the object as described above, the compressor and the condenser, the evaporator and the expansion device is provided in the body to communicate with each other by the refrigerant pipe, the refrigerant cycle through the refrigerant circulation through the refrigerant pipe A mobile air conditioner comprising: a first compressor provided at one side of the main body for compressing a refrigerant; A second compressor provided on one inner side of the main body to compress the refrigerant and having a larger compression capacity than the first compressor; The first compressor and the second compressor is characterized in that it is configured to enable the adjustment of the individual operation according to the user's selection.

One of the first compressor and the second compressor is selectively used depending on the cooling type, or used simultaneously.

One side of the condenser is further provided with a second refrigerant pipe provided to communicate with the first compressor and the second compressor separately.

One side of the main body is further provided with an accumulator for separating only the gaseous refrigerant to the first compressor and / or the second compressor, the accumulator is a first refrigerant provided separately from the first compressor and the second compressor, respectively In communication with the pipe.

According to the mobile air conditioner according to the present invention having such a configuration, it is possible to implement a variety of compression capacity has the effect of improving the cooling efficiency.

Hereinafter, a configuration of a preferred embodiment of a mobile air conditioner according to the present invention as described above will be described in detail with reference to the accompanying drawings.

Figure 3 is a plan view schematically showing the internal structure of the main body of the preferred embodiment of the mobile air conditioner according to the present invention, the mobile air conditioner is formed by the main body 100, the inside of the main body 100 is refrigerated Compressors 200 and 220 constituting the cycle, the condenser 300, the expansion device 520 and the evaporator 500 is provided.

The inside of the main body is partitioned into the outdoor side 140 and the indoor side 160 by the barrier 120, the outdoor side 140, the compressor (200, 220), the condenser (300) accumulator 240 and the outdoor fan 400 and an outdoor motor 420 are provided.

The compressors 200 and 220 are provided at one inner side of the main body 100, that is, the outdoor side 140 to compress the low-temperature low-pressure refrigerant at high temperature and high pressure, and the first compressor 200 and the second compressor 220. It is composed of

The first compressor 200 is mounted on the inner rear side (as shown in FIG. 3) of the outdoor side 140 to compress the low-temperature low-pressure gas refrigerant introduced from the accumulator 240 to a high-temperature high-pressure state. do.

A second compressor 220 is provided at one inner side of the outdoor side 140, that is, a side adjacent to the first compressor 200. Like the first compressor 200, the second compressor 220 is for compressing the refrigerant, and is formed to have a somewhat larger compression capacity than the first compressor 200.

That is, each of the compressors 200 and 220 mounted inside the outdoor side 140 is configured to have different compression capacities.

In addition, if necessary, the second compressor 220 may be an inverter-type compressor capable of adjusting the compression capacity by varying the rotation speed of the electric motor according to the frequency of the input power.

An accumulator 240 is provided inside the outdoor side 140 adjacent to the compressors 200 and 220. The accumulator 240 is a place where the refrigerant in the gas-liquid mixed state introduced from the evaporator 500 to be described below is temporarily stored, and the gas in the gas-liquid mixed state is separated into a gas state and a liquid state and the gas is supplied to the compressors 200 and 220. Only refrigerant can be supplied.

The accumulator 240, the first compressor 200 and the second compressor 220 are communicated with each other by the first refrigerant pipe 260 formed separately, the accumulator 240 and the first compressor 200 And a second flow path between the second compressor 220.

Meanwhile, a condenser 300 is formed at the front end of the outdoor side 140. The condenser 300 is a heat exchanger between the outdoor air and the refrigerant inside, so that the refrigerant is condensed by the heat exchange with the outdoor air to become a liquid state, a heat exchanger that is generally used is used.

The first compressor 200 and the second compressor 220 are each equipped with a second refrigerant pipe 320 configured separately. The second refrigerant pipe 320 is to allow the first compressor 200 and the second compressor 220 to communicate with the condenser 300, the first compressor 200 and / or the second compressor. The high temperature and high pressure refrigerant compressed at 220 is transferred to the condenser 300.

In addition, an outdoor fan 400 and an outdoor motor 420 are provided at the rear of the condenser 300, that is, substantially in the center of the outdoor side 140.

The outdoor fan 400 forcibly sucks and blows outside air so that heat exchange in the condenser 300 occurs more smoothly, and allows the sucked air to pass through the condenser 300.

The outdoor motor 420 transmits a driving force for the rotation of the outdoor fan 400, and a rotation shaft of the outdoor motor 420 is connected to the rotation center of the outdoor fan 400.

The front end of the indoor side 160 is provided with an evaporator 500, a blower 600, and a blower motor 620. The evaporator 500 is such that the refrigerant is evaporated to a gaseous state by heat exchange with the air in which the refrigerant inside is forcibly sucked. At this time, the air passing through the evaporator 500 is changed to cold air by heat exchange. do.

In addition, a blower 600 and a blower motor 620 are provided at an approximately center portion of the indoor side 160. The blower 600 is forcibly sucked outside air and blown toward the evaporator 500, the cooled air through the evaporator 500 by the blowing of the blower 600 can be discharged to the indoor space. .

Meanwhile, the compressors 200 and 220 and the condenser 300, the expansion device 520, the evaporator 500, and the accumulator 240, which are provided inside the main body 100, communicate with each other by a refrigerant pipe, and the refrigerant pipe Through the refrigerant flows to circulate the cycle.

On the other hand, although not shown, the passage of the air sucked and the air discharged by heat exchange with the condenser 300 and the evaporator 500 is formed on the outside of the main body 100, if necessary separate guidance such as bellows The passage may be guided to the indoor or outdoor space.

Hereinafter, the operation of the mobile air conditioner according to the present invention having the configuration as described above will be described with reference to the drawings.

Figure 4 is a cycle diagram schematically showing the flow of the refrigerant when using only the first compressor which is a main component of a preferred embodiment of a mobile air conditioner according to the present invention, Figure 5 is a second configuration of the main part of a preferred embodiment of a mobile air conditioner according to the present invention The cycle diagram schematically shows the flow of refrigerant when only the compressor is used. 6 is a cycle diagram schematically showing the flow of the refrigerant when the first compressor and the second compressor, which are main components of the mobile air conditioner according to the present invention, are used simultaneously.

As shown in these figures, the mobile air conditioner is located in a specific place for cooling the user's desired space and then operates a refrigeration cycle to cool the indoor space.

On the other hand, the cooling of the indoor space will vary depending on various places or environmental conditions, it will be described in detail with reference to the drawings.

4 shows a one-stage cooling (S100) for cooling a relatively small indoor space or a space that does not require strong cooling, and includes a first compressor 200 and a second compressor 220 inside the main body 100. Among them, only the first compressor 200 having a relatively small capacity is operated to constitute a refrigeration cycle.

In more detail, for the first stage cooling (S100), only the first compressor 200 is operated according to the user's selection to compress the refrigerant to a high temperature and high pressure to condense the condenser 300 through the second refrigerant pipe 320. ) To supply the refrigerant.

In this case, the first compressor 200 has a smaller compression capacity than the second compressor 220 and may be operated when the size of the indoor space requiring cooling is relatively small.

The refrigerant supplied to the condenser 300 is condensed by heat exchange with air forcedly blown by the outdoor fan 400 and the outdoor motor 420, and the condensed refrigerant passes through the expansion device 520 to easily vaporize. To expand into the evaporator 500.

The refrigerant inside the evaporator 500 exchanges heat with external air forcedly blown by the blower 600 and the blower motor 620, and thus the refrigerant inside the evaporator 500 is phase-changed to a gas state. It causes cold air.

The cold air generated at this time is introduced into the indoor space through a guide passage or an outlet formed separately, thereby cooling the indoor space.

In addition, the refrigerant in the gas-liquid mixed state, which has undergone heat exchange with external air via the evaporator 500, flows into the accumulator 240 and is separated into a refrigerant in a gaseous state and a liquid state, and only the refrigerant in the separated gaseous state is used. It is supplied to the compressors 200 and 220 through the first refrigerant pipe 260. And, by circulating such a refrigeration cycle, continuous cooling is achieved.

FIG. 5 illustrates two-stage cooling performed in a relatively large space such as a bedroom, such as a bedroom, which is difficult to cool by one-stage cooling. In the two-stage cooling (S200), a second compression capacity larger than that of the first compressor 200 is shown. The refrigeration cycle is configured by the operation of the compressor 220 only.

In more detail, for the two-stage cooling (S200) according to the user's selection, only the second compressor 220 is operated to compress the refrigerant at high temperature and high pressure to the condenser 300 through the second refrigerant pipe 320. To supply the compressed refrigerant.

At this time, the second compressor 220 has a larger compression capacity than the first compressor 200, and is preferably operated when the size of the indoor space requiring cooling is wider than the area during the first stage of cooling (S100). something to do.

The refrigerant supplied to the condenser 300 performs heat exchange, and then flows into the evaporator 500 through the expansion device 520. In the expansion device 520, the refrigerant is expanded to facilitate vaporization, and the refrigerant inside the evaporator 500 exchanges heat with the air vaporized and blown.

In the evaporator 500, cool air is generated by heat exchange, and the cool air is introduced into a space requiring cooling through a guide passage or an outlet formed separately, and is cooled.

In addition, the refrigerant having undergone heat exchange with external air via the evaporator 500 is introduced into the accumulator 240, and the gaseous refrigerant separated from the accumulator 240 is supplied to the compressors 200 and 220 to complete the cycle. Done.

Meanwhile, FIG. 6 shows three stages of cooling in a space that is difficult to cool by one stage of cooling or two stages of cooling, that is, a living room or a very large indoor space. In the three stages of cooling (S300), the first compressor 200 and the second stage are cooled. Compressor 220 is operated at the same time to form a refrigeration cycle.

In more detail, for the three-stage cooling (S300), the first compressor 200 and the second compressor 220 simultaneously operate according to the user's selection to compress the refrigerant to high temperature and high pressure.

Simultaneous operation of the first compressor 200 and the second compressor 220 enables the mobile air conditioner to operate at the maximum compression capacity. That is, the overall compression capacity is achieved by adding the compression capacities of the first compressor 200 and the second compressor 220 by the simultaneous operation of the first compressor 200 and the second compressor 220 to maximize the compression. Capacity.

Therefore, in the first stage cooling (S100) and the second stage cooling (S200), it is possible to cool in a large space or a space requiring strong cooling, which is difficult to perform sufficient cooling.

The refrigerant compressed by the first compressor 200 and the second compressor 220 is supplied to the condenser 300 through the second refrigerant pipe 320 to exchange heat, and the heat exchanged refrigerant is the expansion device ( Passed through the evaporator 500 through 520.

In addition, the refrigerant introduced into the evaporator 500 performs heat exchange with external air, and the refrigerant passing through the evaporator 500 separates only the refrigerant in the gas state from the accumulator 240, and the separated gas state. Refrigerant of the refrigerant flows back into the compressors 200 and 220 to complete the cycle.

Meanwhile, the external air forcedly blown into the evaporator 500 is cooled by heat exchange with the refrigerant inside the evaporator, and then discharged to the outside to cool the indoor space.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In the mobile air conditioner according to the present invention as described in detail above, a first compressor and a second compressor having different capacities are provided inside the main body, and the first compressor and the second compressor are operated according to a user's operation. This is regulated.

That is, according to the conditions of various spaces or indoor spaces for cooling, stepwise cooling is possible in one step cooling, two step cooling and three step cooling by combining the operations of the first compressor and the second compressor.

Therefore, cooling can be performed by operating a compressor having a compression capacity suitable for various spaces, thereby improving the cooling efficiency.

In addition, since effective cooling is possible in various spaces or environmental conditions, it is possible to apply in various spaces, thereby improving mobility, which is the original purpose of the mobile air conditioner.

Claims (4)

The compressor 200, 220, the condenser 300, the evaporator 500, and the expansion device 520 are provided in the main body 100 so as to communicate with each other by a refrigerant pipe, and constitute a refrigeration cycle through circulation of the refrigerant through the refrigerant pipe. In the portable air conditioner, A first compressor (200) provided at one side of the main body (100) for compressing a refrigerant; A second compressor (220) provided on one side of the main body (100) to compress the refrigerant, and having a compression capacity larger than that of the first compressor (200); The first compressor (200) and the second compressor (220) is a mobile air conditioner, characterized in that configured to be able to adjust the individual operation according to the user's selection. The method of claim 1, wherein the first compressor 200 and the second compressor 220, Mobile air conditioner, characterized in that either one is selectively used depending on the type of cooling or at the same time. According to claim 2, One side of the condenser 300, Mobile air conditioner, characterized in that further provided with a second refrigerant pipe (320) provided to communicate with the first compressor (200) and the second compressor (220) separately. According to claim 3, One side of the main body 100, An accumulator 240 is further provided to separate only a refrigerant in a gas state and supply the gas to the first compressor 200 and / or the second compressor 220, and the accumulator 240 includes the first compressor 200 and the first compressor. Mobile compressor, characterized in that the communication with the second compressor 220 and the first refrigerant pipe 260 provided separately.

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