ES2298600T3 - PORTABLE AIR CONDITIONING DEVICE. - Google Patents

Abstract

The present invention discloses a portable air conditioner which can individually provide a cool air current to each user and which can be easily moved due to a small size. The portable air conditioner generates cool air by performing heat absorption in the heat absorption unit (60) of a thermoelectric module (50), and improves cooling efficiency by performing radiation in the radiation unit (70) of it by evaporation and cooling. A weight and size of the air conditioner are so reduced that the user can use the air conditioner when he/or she moves. In addition, a compressor is not used to prevent noises and vibrations, so that the user can pleasantly use the portable air conditioner. Cooling is controlled for each user, to improve users' satisfaction.

Description

Portable air conditioner.

Technical field

The present invention relates to an apparatus of portable air conditioner and, more particularly, to a portable air conditioner that can provide individually a stream of cold air to each user and that can be moved easily due to its small size.

Prior art

In general, an air conditioner pleasantly cools an interior space such as an area residential, restaurant or office using a cycle of refrigeration. The operation of an air device conventional conditioning that uses the refrigeration cycle will will describe below with reference to figure 1.

The conventional air conditioner which uses the refrigeration cycle comprises a compressor 2 for compress refrigerant agents in gaseous refrigerants at high temperature and high pressure, a condenser 4 to condense the refrigerants from compressor 2 in liquid refrigerants at high temperature and high pressure, expansion means 6 for decompress refrigerants from condenser 4 in low temperature and low pressure refrigerants, such as a tube capillary or an electronic expansion valve, and an evaporator 8 to evaporate the refrigerants from the media 6 expansion in low temperature and low gas refrigerants Pressure. These elements are connected to each other through conduits of refrigeration.

Also, said apparatus comprises means air injection exteriors (not shown) that have a radiation fan 12 and a motor (not shown) for forcefully inject the outside air into the condenser 4 and, arranged on the other side of the condenser 4, means of indoor air injection (not shown) presenting a cooling fan 14 and a motor (not shown) for forcefully inject the indoor air into the evaporator 8 and that They are arranged on one side of the evaporator 8.

In that place, the refrigerants that pass to through condenser 4 they are heat exchanged with the outside air and condense, and the refrigerants that pass through the evaporator 8 they heat up with the indoor air and evaporate, to cool indoor air

The operation of the motors to drive the compressor 2, the radiation fan 12 and the fan of cooling 14 is controlled by a control unit (no represented). Depending on the size of the interior space a cooling, each capacity of the compressor 2, of the fan is determined radiation 12 and cooling fan 14 and the Their operation is controlled by the unit control.

In the air conditioner, the compressor 2, condenser 4, expansion means 6, the evaporator 8, the means of outside air injection and the means Indoor air injection are incorporated into a unit and fixed to a wall or a window, or the compressor 2, the condenser 4, the expansion means 6 and the outside air injection means are they incorporate an outdoor unit and are fixed to the outer space and the evaporator 8 and the indoor air injection means are incorporated into an indoor unit and fixed to the space inside.

In the air conditioner, the compressor 2 is operated to circulate the refrigerants through the refrigeration cycle, and the radiation fan 12 and the cooling fan 14 are operated to forcely inject the outside air and the indoor air to condenser 4 and evaporator 8, respectively
mind.

More accurately, when the compressor 2, the refrigerants are compressed in refrigerants soda at high temperature and high pressure. The refrigerants that pass through the compressor 2 are heat exchanged with air outside and condense into high temperature liquid refrigerants and high pressure through the condenser 4. The refrigerants that pass through condenser 4 expand and decompress in low temperature and low pressure refrigerants by means expansion 6. Refrigerants that pass through the media expansion 6 are heat exchanged with the indoor air and evaporate in low temperature and low pressure gaseous refrigerants by evaporator 8, thereby cooling the air inside.

In addition, when the fan is operated of radiation 12, the outside air is forcefully injected into the condenser 4 and thus heat exchanges with the refrigerants that pass through capacitor 4, and when the cooling fan 14, the air is forcefully injected inside towards evaporator 8 and thus heat exchanged with the refrigerants that pass through the evaporator 8.

However, in air devices conventional conditioning, because the refrigerants are compressed at a high pressure, the compressor and the ducts of refrigeration through which high pressure refrigerants circulate They need to be resistant to high pressures. Therefore, the weight and size of the compressor and ducts are increased of refrigeration. In addition, the elements connect to each other through cooling ducts and, therefore, are not installed or they move easily. When the user moves to a different space, cooling effects result useless

In air conditioners conventional, the compressor connects to the other elements through the cooling ducts and, therefore, the vibrations and compressor noises are transmitted to the interior space, which can be annoying for users. The refrigerants of air conditioners based on the Freon cause environmental pollution.

Air conditioners conventional cool the entire interior space and therefore They fail to satisfy all space users. Further, air conditioners cool the space part interior in which none of the users remain, which reduces cooling efficiency

British patent application GB 2 267 338 unveils a thermoelectric air conditioning device using a semiconductor thermoelectric cooler based on the Peltier effect and therefore eliminates the problem of Noisy operation since no compressor is used.

U.S. Patent No. 6,058,712 gives know all the features of the preamble of the claim 1, describing, therefore, an air conditioning system, which It includes thermoelectric devices. Among other elements, said system comprises a thermoelectric module that has a heat absorption unit to absorb peripheral heat and a radiation unit to radiate heat to the periphery and carry out absorption and radiation while receiving electric current. In addition, injection means of air next to the heat absorbing unit to inject air to exchange heat between the heat absorption unit and the air and radiation means are installed next to the unit of radiation to cool the radiation unit. The system includes also a control unit to control the module thermoelectric, air injection means and means of radiation.

Exhibition of the invention

An objective of the present invention is provide a portable air conditioner, which despite if it is small and light for the user who has to use it when it displaces it, it has better cooling efficiency.

Another objective of the present invention is provide a portable air conditioner that can ensure a pleasant environment avoiding noise and vibration and removing refrigerants.

Another additional objective of the present invention is to provide a portable air conditioner that can increase the level of user satisfaction by controlling the cooling for each user.

To achieve the objectives of this invention described above, an air apparatus is provided portable conditioning comprising: a thermoelectric module that features a heat absorbing unit to absorb heat peripheral and a radiation unit to radiate heat towards the periphery in the opposite parts, and to carry out the absorption of heat and radiation while receiving current electric; installed air injection means close to the air absorption unit, to inject air and thus exchange heat between the air heat absorbing unit, installed radiation means close to the unit of radiation, to cool the radiation unit; and a unit of control to control the thermoelectric module, the means of air injection and radiation means. The means of radiation comprise a spray nozzle to spray water towards the radiation unit so that the water sprayed from the spray nozzle to the radiation unit can evaporate to cool the radiation unit.

According to one aspect of the present invention, the thermoelectric module comprises semiconductors of type P and Type N semiconductors in pairs, and the absorption unit of heat and the radiation unit are arranged at both ends of the P type semiconductors and N type semiconductors.

Preferably, the plurality of modules Thermoelectric is connected in series.

More preferably, a plurality is installed of heat absorption fins in the heat absorption unit, and a plurality of radiation fins in the radiation unit, to expand the heat transfer area.

According to another aspect of the present invention, the air injection means comprise a passage guide of heat absorption that has a suction hole and a discharge hole to aspirate and discharge air, presenting the heat absorption unit or heat absorption fins arranged between the suction hole and the discharge, and the air guide, and the cooling fan and a motor installed inside the absorption passage guide of heat, to inject air along the absorption passage guide of heat

Preferably, in the absorption passage guide of heat, the suction hole is made at the bottom, the discharge hole is made at the top, and the cooling fan is installed inside the hole Download

More preferably, the fan of cooling is a cross current fan.

According to another additional aspect of the present invention, the radiation means comprise a fan of radiation and an engine to inject air into the radiation unit, such that the water sprayed from the spray nozzle until the radiation unit can be evaporated to cool the radiation unit

Preferably, the radiation means they also comprise a radiation passage guide with an orifice of suction and a discharge orifice to aspirate and discharge air, presenting the radiation unit arranged between the orifice of suction and discharge hole, and air guide.

Preferably, in the step guide of radiation, the suction hole is made in the part upper, the discharge hole is made in the lower part, and The radiation fan is installed inside the hole of aspiration.

Preferably, the radiation means they also comprise a water storage container installed at the bottom of the radiation path guide, for collect the sprayed water from the spray nozzle and store the water, and a pump to pump the water stored in the water storage container towards the nozzle sprayer

Preferably, the spray nozzle is installed inside the suction hole of the passage guide of radiation, to spray the water from the top of the radiation unit

Brief description of the drawings

The present invention can be better understood. referring to the attached drawings that are provided for illustrative purposes only and, therefore, are not limiting of the present invention, in which:

Figure 1 is a view in functional state that illustrates a general air conditioner that uses a refrigeration cycle;

Figure 2 is a view of the structure that illustrates a portable air conditioner according to the present invention;

Figure 3 is a side sectional view that illustrates the main elements of the air conditioner portable according to the present invention;

Figure 4 is a graph that represents a cooling value and a performance factor depending on the input voltage applied to a thermoelectric module, when operates the air conditioner in the optimum state portable according to the present invention;

Figure 5 is a graph that represents a cooling value and a performance factor depending on the input voltage applied to a pump, when operated in the optimal state the portable air conditioner according to the present invention;

Figure 6 is a graph that represents a cooling value and a performance factor depending on the input voltage applied to a cooling fan, when the air apparatus is operated in the optimum state portable conditioning according to the present invention;

Figure 7 is a graph that represents a cooling value and a performance factor depending on the input voltage applied to a radiation fan, when operates the air conditioner in the optimum state portable according to the present invention;

Figure 8 is a graph that represents a cooling value and a performance factor depending on the air humidity, when operated in the optimum state the portable air conditioner according to the present invention; Y

Figure 9 is a graph that represents a cooling value and a performance factor depending on the air temperature, when operated in the optimal state the portable air conditioner according to the present invention.

Best way to practice the invention

Preferred embodiments of the The present invention will be described in detail below by making  Reference to the attached drawings.

Figure 2 is a view of the structure that illustrates a portable air conditioner according to the present invention, and Figure 3 is a side sectional view illustrating the main elements of the air conditioner portable according to the present invention.

Referring to figures 2 and 3, the portable air conditioner comprises a module thermoelectric 50 presenting a heat absorption unit 52 and a radiation unit 54 in the opposite parts and that performs heat absorption to absorb peripheral heat in the heat absorption unit 52 and the radiation to radiate the heat to the periphery in the radiation unit 54 thereto time that receives the electric current, some means of injection 60 installed next to the heat absorption unit 52, to inject air into the heat absorbing unit 52 in order to exchange heat between heat absorption unit 52 and the air, radiation means 70 installed next to the unit of radiation 54, to spray water to the radiation unit 54 for evaporating and cooling, and a control unit 80 for control the thermoelectric module 50, the injection means of air 60 and radiation means 70.

More accurately, the thermoelectric module 50 It is a chip-type electronic refrigerant material that uses a thermoelectric semiconductor comprising a conversion material Energy as a basic material. The thermoelectric module 50 presents P type semiconductors, which have a deficit of electrons, and N type N semiconductors, which have a surplus of electrons, in pairs. The plurality of semiconductors P of type P and the plurality of semiconductors N of type N are installed to present the ends of one of its sides alternatively electrically connected in series by means of a metal electrode When they receive a DC voltage, the electrons they move the heat in the same direction in the different semiconductors The heat absorption unit 52 to perform heat absorption is performed at the ends of a face of the P-type semiconductors and N-type N semiconductors, and the radiation unit 54 to carry out the radiation is performed at the ends of the other side of them.

In this place, the transfer plates of heat 52a and 54a to directly transfer heat to both ends of P type semiconductors and N semiconductors Type N, such as ceramic, connect to the module thermoelectric 50. A plurality of heat absorption fins 52b to expand the area of heat absorption are performed in the heat transfer plate (heat absorption plate 52a) of the heat absorption unit 52, and a plurality of fins of 54b radiation to expand the area of radiation are performed in the heat transfer plate (radiation plate 54a) of the radiation unit 54. The electrodes for connecting the P type semiconductors and N type semiconductors are fixed to heat transfer plates 52a and 54a by welding, etc.

In the thermoelectric module 50, it is introduced partially an insulating partition 56 between the absorption unit of heat 52 and the radiation unit 54, and the semiconductors P of Type P and type N semiconductors are made in the partition of separation 57. The insulating partition 56 delays the transfer of heat from the radiation unit 54 to the absorption unit of heat 52 by conduction, and the separation partition 57 divides the spaces of the heat absorption unit 52 and the unit of radiation 54 and prevents heat transfer from the air flowing to through each space by convection, thereby improving the heat exchange efficiency.

A power supply is connected from DC 58 to the metal electrode to supply a voltage determined. In this case, the voltage can be set determined to increase the cooling performance. Is that is, when the given voltage is supplied to the module thermoelectric 50, the determined voltage must decrease the temperature of the heat absorption unit 52 below a default value and prevent the unit temperature from radiation 54 increases above a predetermined value.

The thermoelectric module 50 uses the effect Peltier discovered by the French physicist Athahase Peltier (1785-1845). According to the Peltier effect, when performs a circuit using two types of metals, if the current electric is applied in the middle of the circuit, a lead generates heat and the other bypass absorbs heat.

The air injection means 60 comprise a heat absorption passage guide 62 fixedly installed in a face of the partition wall 57 to present the built-in 52a heat absorption plate and heat absorption fins 52b of the heat absorbing unit 52, to form a conduit for air to flow between a suction hole 62a and a discharge hole 62b, and a cooling fan 64 and a motor (not shown) installed inside the passage guide of heat absorption 62, to inject air along the guide of heat absorption passage 62.

In the heat absorption passage guide 62, the suction hole 62a is made at the bottom of such so that relatively light hot air can be sucked from the bottom, transfer upwards and actively heat exchanger with heat absorbing plate 52a and the heat absorbing fins 52b, and the discharge hole 62b it is performed on top so that the air cooled thermopermuted and therefore relatively heavy can be download from the top and easily transfer in descending direction The conduit between the suction hole 62a and the discharge hole 62b is performed vertically to minimize the loss of air flow.

Preferably, the cooling fan 64 and the motor are installed inside the discharge hole 62b and are controlled by the control unit 80, to increase the volume of refrigerated air discharged towards the user. Plus preferably, fan 64 is a current fan transverse to increase air volume and decrease noises

In addition, a flow meter 66 and a psychrometer 68 near the discharge hole 62b of the guide heat absorption step 62, to determine the volume, the temperature and humidity of the refrigerated air discharged into the Username. The control unit 80 controls all the elements in data function

The air radiation means 70 comprise a radiation passage guide 72 fixedly installed on the other side of partition wall 57 to present the built-in plate radiation 54a and radiation fins 54b of the unit heat absorption 54, to form a conduit for the flow of air between a suction hole 72a and a discharge hole (not shown), a spray nozzle 74 for spraying water to radiation plate 54a and radiation fins 54b, and a radiation fan 76 and an engine (not shown) for inject air into the radiation plate 54a and the fins of radiation 54b, such that water sprayed from the spray nozzle 74 towards radiation plate 54a and the radiation fins 54b can be evaporated to cool the plate of radiation 54a and radiation fins 54b.

In the radiation path guide 72, the hole suction 72a is made at the top, the hole of discharge is done at the bottom, the radiation fan 76 and the motor are installed inside the suction hole 72a and spray nozzle 74 is installed at the bottom of the radiation fan 76 and the motor so that it can be spray the water from the top of the radiation plate 54a and radiation fins 54b. Preferably, a hole 74h to spray the water towards the top of the radiation plate 54a and radiation fins 54b.

In this case, fan operation of radiation 76 and the engine is controlled by the unit of control 80. Preferably, the radiation fan 76 is a cross current fan to increase the volume of air and reduce noise.

The radiation means 70 also comprise a water storage container 77 arranged in the part bottom of the radiation path guide 72, to collect and store the water sprayed from the spray nozzle 74, and a pump 78 to pump the water stored in the container of water storage 77 towards the spray nozzle 74. The operation of the pump 78 is also controlled by the control unit 80.

The control unit 80 is divided into a unit data input 82 to capture volume, temperature data  and refrigerated air moisture discharged into the orifice of discharge 62b of the heat absorption passage guide 62, and a operation control unit 84 connected to the unit data entry 82, to compare data with values determined by the user or stored reference values previously to control the operation of elements.

The control unit 80 controls the voltage of DC input to the motors to drive the fan cooling 64 and radiation fan 76, or DC voltage input to pump 78. In this case, control unit 80 controls the input DC voltages to each element considering a cooling value Q_ {c} and a performance factor COP.

The thermoelectric module 50 can be connected directly to the DC 58 power supply, for Receive the determined voltage. It is also possible to control the voltage value of the DC power supply 58 using control unit 80 and then enter the voltage controlled in thermoelectric module 50.

The cooling value Q_ {c} is the quantity of heat absorbed by the heat absorption unit 52 of the thermoelectric module 50 and is represented by the following Formula 1, and the COP performance factor is the relationship between the cooling value Q_ {c} and the electrical energy introduced in the thermoelectric module 50, the cooling fan 64, the radiation fan 76 and pump 78, and is represented by The following Formula 2:

Formula one

Q_ {c} = m \ C_ {p} \ \ Delta T

In this case Q_ {c} indicates the value of cooling, m indicates the discharge of refrigerated air, C_ {p} indicates the specific heat of the air and ΔT indicates the difference of temperature between the air before / after passing through the unit of heat absorption 52 of the thermoelectric module 50.

Formula 2

COP = \ frac {Q_ {c}} {W_ {t} + W_ {p} + W_ {f1} + W_ {f2}}

In this case COP indicates the factor of performance, Q_ {c} indicates the cooling value of the previous Formula 1, and W_ {t}, W_ {p}, W_ {f1} and W_ {f2} indicate the electric power supplied to thermoelectric module 50, to the pump 78, to cooling fan 64 and to the fan of radiation 76, respectively.

As described above, with with respect to the cooling value Q_ {c}, the control unit 80 raises the DC voltages supplied to the fan cooling 64, radiation fan 76 and pump 78 a in order to increase heat exchange by increasing the volume of air and water spray, and with respect to both the value of cooling Q_ {c} and the COP performance factor, the unit of control 80 introduces the optimal DC voltages to each element at In order to obtain the appropriate cooling value Q_ {c}, reduce the electrical energy introduced to each element and get a value of cooling Q_ {c} greater than a predetermined value.

Figure 4 is a graph that represents a cooling value and a performance factor depending on the input voltage applied to the thermoelectric module, when done operate the air conditioner in the optimum state Portable according to the present invention, Figure 5 is a graph that represents a cooling value and a performance factor in function of the input voltage applied to the pump, when done operate the air conditioner in the optimum state Portable according to the present invention, Figure 6 is a graph that represents a cooling value and a performance factor in function of the input voltage applied to the fan of cooling, when operated in the optimum state the portable air conditioner according to the present invention, Figure 7 is a graph representing a refrigeration value and a performance factor depending on the input voltage applied to the radiation fan, when operated in the optimal condition the portable air conditioner according to the present invention

When the optimal state of the device is detected portable air conditioner based on test data considering the cooling value Q_ {c} and the factor of COP performance, the voltages introduced to the thermoelectric module 50, pump 78, cooling fan 64 and fan of radiation 76 are V_ {t} = 18 V, V_ {p} = 6 V, V_ {f1} = 24 V and V_ {f2} = 24 V, the relative humidity of the air is RH = 60%, and the Air temperature is Ta = 30 ° C.

In detail, in the event that the air apparatus portable conditioning run in the optimal state by changing the voltage V_ {t} introduced to thermoelectric module 50, as represented in figure 4, when the voltage V_ {t} introduced to the 50 thermoelectric module is between 15 and 20 V, the cooling value Q_ {c} and the COP performance factor They are high and have optimal values at 18 V.

When the voltage V_ {t} introduced to the module thermoelectric 50 is too low, the absorption unit of heat 52 is rarely maintained below a temperature determined and, therefore, the cooling value Q_ {c} and the COP performance factor have low values. When he voltage V_ {t} introduced to thermoelectric module 50 is too high, the radiation unit 54 overheats the transfer heat to heat absorption unit 52 by conduction and, therefore, the cooling value Q_ {c} and the COP performance factor have low values. By consequently, it is preferable to control the voltage V_ {t} introduced to thermoelectric module 50 within a range appropriate voltage values.

That is, the voltage V_ {t} introduced at thermoelectric module 50 is controlled to present the value maximum within the range of voltage values to avoid heat transfer from radiation unit 54 to the heat absorption unit 52 by conduction during operation of the thermoelectric module 50.

In the event that the air apparatus portable conditioning run in the optimal state by changing the voltage V_ {p} introduced to pump 78, as depicted in Figure 5, when the voltage V_ {p} introduced to the pump 78 is is between 6 and 9 V, the cooling value Q_ {c} and the COP performance factor are high and present the optimal values at 6 V.

When the voltage V_ {p} introduced to the pump 78 is 9 V, the cooling value Q_ {c} has the value maximum. However, by decreasing the voltage V_ {p} introduced to pump 78, the COP performance factor increases. Therefore, it he also prefers to control the voltage V_ {p} introduced to the pump 78 within an appropriate range of voltage values.

The voltage V_ {p} introduced to pump 78 is controls within the appropriate range of voltage values determined according to the size of the thermoelectric module 50 and the number of spray nozzles 74.

In the event that the air apparatus portable conditioning run in the optimal state by changing the voltage V_ {f1} introduced to cooling fan 64, such as depicted in figure 6, when the voltage V_ {f1} introduced to cooling fan 64 is located between 23 and 24 V, the cooling value Q_ {c} and the COP performance factor are high and present values optimal at 24 V.

When the voltage V_ {f1} introduced to cooling fan 64 is too low, the air volume of the cooling fan 64 is small, the air is not sufficiently heat exchanged with the heat absorption unit 52 and, therefore, the cooling value Q_ {c} and the factor of COP performance are low. When the voltage V_ {f1} introduced to cooling fan 64 is too high, increases the electrical energy V_ {f1} introduced to the fan of 64 refrigeration and therefore the COP performance factor is low. It is therefore preferred to control the voltage V f1 introduced to the cooling fan 64 within a appropriate range of voltage values.

In the event that the air apparatus portable conditioning run in the optimal state by changing the voltage V_2 introduced to the radiation fan 76, such as is represented in figure 7, when the voltage V_ {f2} introduced to the radiation fan 76 is comprised between 23 and 24 V, the cooling value Q_ {c} and the factor of COP performance are high and have the optimal values at   24 V.

When the voltage V_ {f2} introduced to cooling fan 76 is too low, the air volume of the radiation fan 76 is small, the air does not evaporate and cools the radiation unit 54 sufficiently and therefore the cooling value Q_ {c} and the COP performance factor They are low. When the voltage V_ {f2} introduced to the fan of radiation 76 is too high, electric power increases V_ {f2} introduced to the radiation fan 76 and, therefore, The COP performance factor is low. It is therefore preferred check the voltage V_ {f2} introduced to the radiation fan  76 within an appropriate range of voltage values.

The control unit 80 controls the voltages introduced to thermoelectric module 50, pump 78, fan of cooling 64 and the radiation fan 76 within the appropriate ranges of voltage values. When the meter flow 66 and psychrometer 68 determine volume, temperature and the humidity of the refrigerated air discharged through the hole of discharge 62b of the heat absorption passage guide 62, the unit data input 82 captures the data and the control unit of the operation 84 compares and uses the data to control input voltages to each element.

Figure 8 is a graph that represents a cooling value and a performance factor depending on the air humidity, when operated in the optimum state the portable air conditioner according to the present invention, and Figure 9 is a graph representing a refrigeration value and a performance factor depending on the air temperature, when the air apparatus is operated in the optimum state portable conditioning according to the present invention.

In the event that the air apparatus portable conditioning run in the optimal state by changing the relative humidity RH of the air, as shown in Figure 8, when the relative humidity RH of the air is less than 60%, the value of cooling Q_ {c} and the COP performance factor result high.

When the portable air conditioner it is used in an area with a relative humidity RH of the air very high, evaporation and cooling are not efficient in the radiation unit 54 of the thermoelectric module 50. So both the cooling value Q_ {c} and the performance factor COP have low values. Preferably, the apparatus of portable air conditioner is used in an area that presents a relative humidity RH of the air below a predetermined value (for example, RH = 60%).

In the event that the air apparatus portable conditioning run in the optimal state by changing the air temperature Ta, as shown in Figure 9, when the temperature of the air Ta is below 30 ° C, the value of cooling Q_ {c} and the COP performance factor result high.

When the portable air conditioner it is used in an area with a very low Ta air temperature, the temperature difference between the heat absorption unit 52 of the thermoelectric module 50 and the air is small, which prevents An active heat transfer. In addition, evaporation and cooling are not efficient in the radiation unit 54 of the thermoelectric module 50 and, therefore, decrease the value of cooling Q_ {c} and the COP performance factor. Preferably, the portable air conditioner is used in an area that has an air temperature Ta greater than a predetermined value (for example, Ta = 30 ° C).

The operation of the air apparatus conditioning according to the present invention will be described to continuation.

When the DC voltage is supplied determined to the thermoelectric module 50, the electrons move in the same direction on the P semiconductors of type P and the N-type semiconductors of the 50 thermoelectric module. consequently, the heat absorption unit 52 arranged in the one-sided ends of the P semiconductors of type P and the Type N semiconductors maintain a low temperature for perform heat absorption and radiation unit 54 arranged at the ends of the other side of the P semiconductors of type P and the N semiconductors of type N maintain a high temperature to carry out the radiation.

On the face of the heat absorption unit 52, when the cooling fan 64 is operated, the air sucked through the suction hole 62a of the passage guide of heat absorption 62 moves upwards to length of the heat absorption passage guide 62, passes through the heat absorption plate 52a and the absorption fins of heat 52b, and is discharged into the discharge hole 62b of the heat absorption passage guide 62. Because the air is heat exchanger with heat absorbing plate 52a and fins 52b heat absorption, refrigerated air is discharged.

In this area, the heat absorption plate 52a and the heat absorption fins 52b have a large area of contact with the air, to carry out the exchange sufficiently of heat in the heat absorbing unit 52. In addition, the hole discharge 62b of the heat absorption passage guide 62 se disposed at the top and, therefore, the refrigerated air is discharge from the top and is transferred uniformly to the lower zone.

On the face of the radiation unit 54, when the radiation fan 76 is operated, the air sucked through of the suction hole 72a of the radiation path guide 72 is travels downward along the step guide of radiation 72, passes through radiation plate 54a and the radiation fins 54b, and is discharged into the discharge hole of the radiation path guide 72. The air is heat exchanged with the radiation plate 54a and radiation fins 54.

At the same time, when pump 78 is operated, the water deposited in the water storage container 77 is pumped and sprayed towards radiation plate 54a and fins of radiation 54b through the spray nozzle 74, and the air injected by the radiation fan 76 evaporates the water sprayed towards the surfaces of the radiation plate 54a and radiation fins 54b. Water sprayed towards Radiation plate surfaces 54a and radiation fins 54b absorbs heat of vaporization during evaporation and, of In this way, evaporation and cooling are carried out in the radiation unit 54.

In this area, water sprayed towards the plate of radiation 54a and the radiation fins 54b evaporates or is collects in the water storage container 77.

In the thermoelectric module 50, the partition insulator 56 disposed between heat absorption unit 52 and the radiation unit 54, radiation is actively carried out due to evaporation and cooling of the unit radiation 54 and thus increases the temperature difference between the heat absorption unit 52 and the radiation unit 54, thus avoiding heat transfer by driving. As a result, efficiency is further improved of refrigeration.

The flow meter 66 and the psychrometer 68 determine the volume, temperature and humidity of the air refrigerated discharged through the discharge hole 62b of the heat absorption passage guide 62. In control unit 80, the data input unit 82 captures the volume data, the temperature and humidity determined by the flow meter 66 and psychrometer 68, and the operation control unit 84 compares the data with the values determined by the user or reference values stored previously, to control the DC voltages supplied to the thermoelectric module 50, the pump 78, cooling fan 64 and fan radiation 76, respectively.

The portable air conditioner according to The present invention has the following advantages.

First, the air apparatus portable conditioning produces air cooled by the heat exchange of air in the heat absorption unit to perform heat absorption using the module thermoelectric The weight and size of the air device conditioning are so small that the user can use the air conditioner when traveling.

Second, the air apparatus portable conditioning performs the process cooling cycle thermoelectric using the thermoelectric module. For that reason, not the compressor is used to avoid noise and vibration, in such a way so that the user can pleasantly use the air apparatus portable conditioning In addition, no refrigerants are used. special to reduce environmental pollution.

Third, the air apparatus portable conditioning individually refrigerates the part of the interior space in which the user is located. By consequently, cooling can be controlled for each user, in order to improve the degree of user satisfaction. In addition, the radiation unit of the thermoelectric module evaporates and it cools and, therefore, dissipates heat quickly. He portable air conditioner interrupts the transfer of heat by conduction between the absorption unit of heat and radiation unit, thereby improving efficiency of refrigeration.

Although the forms of Preferred embodiments of the present invention, it will be understood that The present invention should not be limited to the embodiment preferred but those skilled in the art will be able to perform various changes and modifications without departing from the scope of the present invention as claimed by continuation.

Claims (13)

1. Portable air conditioner, which understands: a thermoelectric module (50) presenting a heat absorption unit (52) to absorb peripheral heat and a radiation unit (54) to radiate heat to the periphery in the opposite parts, and carry out the absorption and heat radiation while receiving current electric; air injection means (60) installed in the vicinity of the heat absorption unit, to inject air to exchange heat between the heat absorption unit and the air; radiation means (70) installed in the proximity of the radiation unit, to cool the unit of radiation; Y a control unit (80) to control the thermoelectric module, air injection media and media of radiation characterized in that the radiation means (70) comprise a spray nozzle (74) for spraying water to the radiation unit such that the water sprayed from the spray nozzle to the radiation unit can be evaporated to cool the radiation unit. 2. Portable air conditioner according to claim 1, wherein the thermoelectric module comprises semiconductors (P) of type P and semiconductors (N) of type N in pairs, and the heat absorption unit and the unit of radiation are formed at both ends of the semiconductors of Type P and type N semiconductors. 3. Portable air conditioner according to claim 2, wherein the plurality of modules Thermoelectric is connected in series. 4. Portable air conditioner according to any one of claims 1 to 3, wherein a plurality of heat absorption fins (52b) are installed in the unit heat absorption, to expand a transfer area of hot. 5. Portable air conditioner according to any one of claims 1 to 3, wherein a plurality of radiation fins (54b) are installed in the radiation unit, to expand a heat transfer area. 6. Portable air conditioner according to any one of claims 1 to 5, wherein the means of air injection comprise a heat absorption passage guide (62) which has a suction hole (62a) and an orifice discharge (62b) to aspirate and discharge air, the unit being heat absorption or integrated heat absorption fins between the suction hole and the discharge hole, and guiding the air, and a cooling fan (64) and an engine installed inside the heat absorption passage guide, to inject air along the absorption passage guide of hot. 7. Portable air conditioner according to claim 6, wherein, in the absorption passage guide of heat (62), the suction hole (62a) is formed in the part bottom, the discharge hole (62b) is formed in the part top, and the cooling fan (64) is installed in the inside the discharge hole. 8. Portable air conditioner according to claim 7, wherein the cooling fan (64) It is a cross current fan. 9. Portable air conditioner according to any one of claims 1 to 5, wherein the means of radiation (70) comprise a radiation fan (76) and an engine to inject air into the radiation unit. 10. Portable air conditioner according to claim 9, wherein the radiation means comprise also a radiation passage guide (72) having a hole suction (72a) and a discharge hole (72b) to aspirate and discharge air, the radiation unit being integrated between the suction hole and discharge hole, and guiding the air. 11. Portable air conditioner according to claim 10, wherein, in the radiation passage guide of heat (72), the suction hole (72a) is formed in the part upper, the discharge hole (72b) is formed in the part bottom, and the radiation fan (76) is formed in the inside the suction hole. 12. Portable air conditioner according to claim 10, wherein the radiation means comprise also a water storage container (77) installed in the bottom of the radiation passage guide (72), to collect the water sprayed from the spray nozzle (74) and store water, and a pump (78) to pump the water stored in the water storage container towards the nozzle sprayer 13. Portable air conditioner according to claim 12, wherein the spray nozzle (74) is installed inside the suction hole (72a) of the guide radiation path, to spray water from the top of the radiation unit.