KR101862767B1 - Air conditioner without starting the engine for vehicle - Google Patents

Abstract

The present invention relates to an air conditioner for a vehicle, and more particularly, to a non-ignition air conditioner for an electrical engine, which is a vehicular air conditioner including devices such as a compressor, a condenser, an expansion valve and an evaporator, and which operates by receiving battery power of the vehicle to increase an efficiency of installation on a vehicle and regulate operations of the air conditioner according to the battery power supply, thereby implementing a highly efficient and stable air conditioning driving technology. The non-ignition air conditioner installed in an electric forklift includes: a compressor (21) driven by receiving power supplied from a forklift battery (11) to compress a refrigerant; a condenser (22) for condensing the refrigerant compressed in the compressor (21); an expansion valve for throttling the refrigerant condensed in the condenser (22); and an evaporator (23) for evaporating the refrigerant introduced from the expansion valve, wherein the non-ignition air conditioner is installed on a rear upper surface (12) of the forklift on which the driving unit at a rear of the forklift (10) is located.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-

The present invention relates to an automotive air conditioner, and more particularly, to a malfunctioning air conditioner which is operated by receiving battery power of a vehicle from an air conditioner of a vehicle, which comprises a compressor, a condenser, an expansion valve and an evaporator (evaporator) And more particularly, to a non-operating air conditioner for an electric motor having a high efficiency and stable air conditioner driving technique by adjusting the operation of the air conditioner according to the battery power supply.

Generally, the air conditioning system lowers the room temperature by discharging the hot air of the vehicle room outdoors while the refrigerant is flowing through the indoor and the outdoor of the vehicle.

A condenser, an expansion valve, an evaporator, and the like, and these devices are connected to each other by a pipe, so that the refrigerant flows continuously.

In a typical vehicle, the engine driving force for burning fuel, such as gasoline or diesel, drives the air conditioner and various fans. On the other hand, in the case of a negligible air conditioner, the compressors and fans are driven only by the battery power of the engine or by the battery power which is purely charged without the combustion engine.

In this case, the battery power may be consumed quickly. Particularly, in the case of an electric vehicle which is driven only by the battery power, since the air conditioner does not use the battery power but works according to the purpose of the original vehicle such as forklift, electric car, etc., when the battery power is consumed, .

In the case of an electric vehicle powered by a battery, the amount of current consumed during operation of the air conditioner for ignorant automobiles is large, which means that the energy required for driving and operating the engine is insufficient.

When the conventional air conditioner is operated, the actual operation time of the battery may be shortened or the battery may be completely discharged.

Especially, it is difficult to construct an air-conditioning system with energy efficiency for heavy equipment, electric cars and forklifts driven by pure battery power. Therefore, it is urgently required to provide a technical configuration in which ignorant air conditioner is mounted on a vehicle and technical proposal of efficient power consumption.

Open Patent No. 10-2012-0002224 (published on Jan. 05, 2012) Registered Patent No. 10-1251206 (issued on April 08, 2013) Open Patent No. 10-2017-0000930 (published Jan. 04, 2017)

In order to solve the above-mentioned problems, the present invention is to provide an air conditioner, which is composed of a compressor, a condenser, an expansion valve, and an evaporator (evaporator) So as to form an installation structure.

Another object of the present invention is to make efficient use of the vehicle battery power by applying power control technology so that the vehicle operation and the air conditioner are efficiently operated even when the vehicle battery power is decreased due to the operation of the vehicle and the operation of the air conditioner .

It is a further object of the present invention to provide an air conditioner for a vehicle, such as a forklift or a railroad car, with a narrow space for installing a cold air flow space efficiently and improving the efficiency of cold air flow.

According to another aspect of the present invention, there is provided an ignition type air conditioner installed in an electric forklift, the ignition type air conditioner comprising: a compressor for compressing a refrigerant by receiving power from a forklift battery; 21); A condenser 22 for condensing the refrigerant compressed in the compressor 21; An expansion valve for throttling the refrigerant condensed in the condenser 22; And an evaporator 23 for evaporating the refrigerant flowing in from the expansion valve, wherein the ignition air conditioner is installed on the rear upper surface 12 of the forklift truck at which the driving unit behind the forklift 10 is located And an ignition air conditioner for an electric engine.

In the preferred embodiment of the present invention, the ignorable air conditioner includes an air conditioner controller 30 for controlling the operation of members of the ignorable air conditioner, and the air conditioner controller 30 includes a controller 31 for controlling the members; A memory (32) for storing drive setting data of the members; And a power supply unit 33 which is supplied with power from the forklift battery 11 and supplies power to the members including the compressor 21, the condenser 22 fan and the evaporator 23 fan, The controller 30 senses the intensity of the power supplied from the forklift battery 11 and detects a power supply output level for adjusting the power of the power supplied to the fan of the condenser 22 and the fan of the evaporator 23, A regulating portion 34; A condenser fan power supply unit 35 for supplying power from the power supply unit 33 to the fan side of the condenser 22; And an eva-fan power supply unit (36) for supplying power from the power source unit (33) to the fan side of the evaporator (23).

The power supply output level control unit 34 is coupled between the forklift battery 11 and the power supply unit 33 and detects the strength of power supplied from the forklift battery 11 The power sensing unit 341 and the power sensing unit 341 may include a voltage sensing member for sensing a voltage of a power source supplied from the forklift battery 11 and a current sensing unit for sensing a current And a sensing member disposed on the outer circumference of the ignition coil.

The output level value for the condenser fan corresponding to the power supply value read from the memory 32 may be set to a value corresponding to the power supply value of the forklift battery 11 sensed by the power sensing unit 341 A condenser fan output step determiner 342 for analyzing the power value of the forklift battery 11 and transmitting a numerical value of the output level value to the condenser fan power supply 35 side, An eva-fan output step determiner 343 for analyzing an output level value for the evaporator fan corresponding to the power source value read from the memory 32 and transmitting the numerical value of the output level value to the eva-fan power supply 36 side, And an ignition air conditioner for an electric motor.

In the preferred embodiment of the present invention, the ignition air conditioner is characterized in that the condenser 22 is positioned rearward from the rear upper surface 12 of the forklift, the evaporator 23 is positioned forward of the forklift 10 A duct for air flow connected to the evaporator 23 and including a cool air discharge duct 27 for discharging cool air from the evaporator 23 and an indoor air inlet 26 for sucking room air, The air conditioner control panel 25 is located at one side of the evaporator 23 and a lateral induction discharge swash plate 28 for guiding cool air to flow laterally is provided in the cold air discharge duct 27, A rectangular discharge coupling part 271 connected laterally in the discharge duct 27 and connected to a longitudinal long-side duct 41 having a longer length than the short-side duct 42; And a single discharge coupling part (272) to which the short side duct (42) is connected.

In the preferred embodiment of the present invention, the cold air flow duct (40) is connected to the cold air discharge duct (27) and supplies the cold air of the evaporator (23) to the cold air outlets (60) And a cool air discharge port 60 for discharging the cool air supplied through the cool air flow duct 40 to the room of the forklift. The cool air flow duct 40 has a cool air discharge port 60 A long side duct (41) provided at a portion farther from the room side wall from the cool air discharge duct (27) to flow cool air; A front side duct (42) provided at both sides of the forklift with a cool air upper discharge port (60) and installed at a portion between the cool air discharge duct (27) and the room side wall to flow cool air; And an upper flow duct (50) having a lower portion connected to an end portion of the long side duct (41) and a short side duct (42), and an upper portion connected to a cool air upper discharge port (60) It provides the air-conditioner air conditioner for.

In the preferred embodiment of the present invention, the long-side duct 41 includes a long-side lateral extending flow portion 411 connected to the long-side discharge coupling portion 271 and having a pipe shape and in which cool air flows, And a long side lateral front cover 412 coupled to cover the front surface of the extension flow unit 411. The short side duct 42 is connected to the one-side discharge coupling unit 272 and has a pipe shape, And a short side lateral front cover (422) coupled to cover the front surface of the short side lateral flow portion (412).

In the preferred embodiment of the present invention, at least one of the long-side duct 41 and the short-side duct 42 is provided with the long side lateral flow portion 411 and the short side lateral flow portion 421, A rear inclined induction flow portion 43 for guiding the cool air that has flowed laterally from the cold air discharge duct 27 to flow in the rear direction, a flow direction of the cool air after the rear inclined induction flow portion 43, A side flow portion 45 for accumulating cold air so that cold air flowing through the rear flow portion 44 flows in a lateral direction, and a side flow portion 45 for guiding the cool air flowing through the rear flow portion 44 to the rear flow portion 44, And a side guide sloped surface 46 for guiding the flow of cool air laterally in the rear flow portion 44. The lower flow portion 45 and the lower portion of the upward flow duct 50 are connected to flow cool air And an upper side connecting portion (47) Provides a fuzzy air conditioner for an electric engine.

In the preferred embodiment of the present invention, the upward flow duct 50 is located below the upward flow duct 50 and at least one of the long-side duct 41 and the short-side duct 42, An upper duct connecting portion 51 connected to the lower duct connecting portion 51 and an upper duct connecting portion 51 connected to the upper duct connecting portion 51 and connected to the upper duct connecting portion 47, An upper discharge connecting portion 53 connected to the upper discharge connecting portion 53 and an upper discharge accumulating space portion 54 which is located above the upwardly extending flow portion 52 and forms a space for collecting the flowing cold air, And a control unit for controlling the operation of the engine.
In the preferred embodiment of the present invention, the long-side duct 41 includes a long-side extending flow portion 411 connected to the long-side discharge coupling portion 271 and having a pipe shape and through which cool air flows; And a long side lateral front cover 412 coupled to cover the front side of the longitudinally extending flow part 411. The short side lateral duct 42 is connected to the one side discharge coupling part 272, A short side extending flow portion 421 through which cold air flows; And a short side lateral front cover 422 coupled to cover the front side of the short side lateral flow unit 412. The cold air flow duct 40 is connected to the longitudinal long side duct 41 and the short side lateral duct 42, Is formed to be inclined with one of the long side lateral extending flow portion (411) and the short side lateral extending flow portion (421) so that the cold air that has flowed laterally from the cold air discharge duct (27) A backward gradient inducing flow portion 43 for guiding the flow of the fluid; At least one of the long-side duct (41) and the short-side duct (42) includes a rear flow portion (44) for guiding the flow direction of the cold air to flow rearwardly after the rear inclined induction flow portion (43); At least one of the long-side duct (41) and the short-side duct (42) includes a side flow portion (45) for accumulating cold air so that cold air flowing through the rear flow portion (44) flows in a lateral direction; And at least one of the long-side duct (41) and the short-side duct (42) forms an inclined surface with the rear flow portion (44) And at least one of the long side duct 41 and the short side duct 42 connects the side flow portion 45 and the lower portion of the upward flow duct 50 to generate cool air, And the upper flow duct 50 includes an upper duct connecting portion 51 connected to the side upper connecting portion 47 below the upper flow duct 50; An upwardly extending flow part (52) for allowing cool air to flow upward from the upper duct connection part (51); An upward discharge connecting portion 53 connected to the cold air discharge port 60 at the upper portion of the upwardly extending flow portion 52; And an upper frictional accumulation space part (54) which is located above the upwardly extending flow part (52) and forms a space for gathering the flowing cold air, the upper frictional accumulation space part (54) Provides air conditioning.

According to the present invention constructed as described above, since the ignorant air conditioner including the compressor, the condenser, the expansion valve, and the evaporator is installed at the rear of the vehicle, a stable installation structure can be achieved without affecting the operation of the vehicle Effect.

Another advantage of the present invention is that efficient use of the vehicle battery power is achieved by applying power control technology so that the operation of the vehicle and the air conditioner are efficiently operated even when the vehicle battery power is reduced due to the operation of the vehicle and the operation of the air conditioner .

Further, another effect of the present invention is to improve the efficiency of cold air flow by efficiently designing and applying a cold air flow space together with a narrow installation space due to characteristics of a vehicle such as a forklift or a train.

Another advantage of the present invention is that cool air is discharged from the upper portion of the vehicle cabin, thereby spreading the cold air throughout the room, thereby improving the cooling efficiency and achieving energy saving.

1 is a side view of a forklift equipped with an ignition air conditioner according to the present invention.
FIG. 2 is a rear view of a forklift equipped with an ignition air conditioner according to the present invention. FIG.
3 is a front view of the ignition air conditioner according to the present invention.
4 is a side view of the ignition air conditioner according to the present invention.
FIG. 5 is a diagram illustrating an example of the configuration of the ignorable air conditioner according to the present invention in an upward direction. FIG.
FIG. 6 is an exploded view of a cold air duct connected to an evaporator in the ignition air conditioner according to the present invention. FIG.
FIG. 7 is an enlarged view of a connection portion between a side duct and an upward flow duct in a cold air flow duct in the ignition air conditioner according to the present invention.
8 is an exemplary view of the upper portion of the upward flow duct in the ignition air conditioner according to the present invention.
FIG. 9 is an exemplary view showing a state in which components of the cold air flow duct are separated in the ignition air conditioner according to the present invention. FIG.
10 is a configuration diagram of an air conditioner controller for controlling the ignition air conditioner according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

That is, the ignorable air conditioner 20 for an electric motor according to the present invention is mounted on a vehicle such as an engine or an electric motor as a vehicle such as an automobile or a work vehicle, as shown in FIGS. 1 to 10, Air conditioning system.

The ignition air conditioner 20 is driven by supplying battery power, particularly mainly DC power, of the vehicle. The ignition air conditioner 20 is heat-exchanged with the surroundings through pressure and volume changes along the refrigerant flow path. And the heat exchange between the hot air of the room and the hot air of the room is made to lower the temperature of the vehicle.

A condenser 22 for condensing the refrigerant compressed in the compressor 21; a condenser 22 for condensing the refrigerant condensed in the condenser 22; An expansion valve, and an evaporator (evaporator) 23 for evaporating the refrigerant introduced from the expansion valve while being connected to the devices.

In this ignition air conditioner 20, the heat of the refrigerant is discharged to the outside through the core of the condenser 22 provided on the outdoor side, which is the rear upper surface 12 of the forklift, which is located behind the forklift 10, The hot air in the room is cooled through the evaporator 23 in the forklift 10.

That is, the ignition air conditioner 20 provided in the electric forklift 10 is driven by receiving power from the forklift battery 11. [

A compressor 21 for compressing a refrigerant, a condenser 22 for condensing the refrigerant compressed in the compressor 21, an expansion valve 22 for reducing the refrigerant condensed in the condenser 22, an evaporator 23 for evaporating the refrigerant introduced from the expansion valve, and the like.

Since the ignorable air conditioner 20 is installed on the rear upper surface 12 of the forklift truck on which the driving unit behind the forklift 10 is located, the ignition air conditioner 20 does not take up a separate space. Therefore, Installation and mounting are facilitated. Therefore, the ignition air conditioner 20 according to the present invention may be provided at the time of initial design and manufacture. Particularly, in the case of the forklift 10 which has been used without air conditioning, It is advantageous that the design of the forklift can be minimized at the time of installation by utilizing the rear upper surface 12 of the forklift which is the upper portion of the engine (engine).

Particularly, in general, in case of a working vehicle, the air conditioner is installed on the upper roof of the vehicle by converting it into a separate roof. However, the conventional air conditioner 20 according to the present invention can be applied It is.

In addition, the above-mentioned ignorable air conditioner 20 includes an air conditioner controller 30 for controlling the operation of members of the ignorable air conditioner.

The air conditioner controller 30 includes a control controller 31 for controlling the members and a memory 32 for storing driving setting data of the members to operate the ignition air conditioner 20.

And a power supply unit 33 that receives power from the forklift battery 11 and supplies power to the members including the compressor 21, the condenser 22 fan, and the evaporator 23 fan. The main power is supplied from the forklift battery 11 installed in the forklift 10 and the power supply unit 33 is provided to supply power to the members of the ignorable air conditioner 20.

In addition, the air conditioner controller 30 includes members for supplying power to the power supply unit 33 with components such as a compressor 21, a panel, and the like.

Particularly, the air conditioner controller 30 includes a condenser fan power supply unit 35 that supplies the power of the power supply unit 33 to the fan side of the condenser 22.

The air conditioner controller 30 also includes an eva-fan power supply unit 36 for supplying power to the fan unit 23 of the evaporator 23.

The air conditioner controller 30 senses the intensity of the power supplied from the forklift battery 11 and controls the power of the condenser 22 and the evaporator 23 And a response output level adjusting section (34). The power consumed by the ignorable air conditioner 20 is adjusted according to the intensity of the power supplied from the forklift battery 11 installed on the forklift 10 so that the operation of the forklift 10 and the ignorable air conditioner 20 is optimized .

The power sensing output level controller 34 may include a power sensing unit coupled between the forklift battery 11 and the power unit 33 to sense the strength of power supplied from the forklift battery 11, 341 are provided.

The power sensing unit 341 may include a voltage sensing member for sensing a voltage of a power source supplied from the forklift battery 11.

The power sensing unit 341 may include a current sensing member for sensing a current of a power source supplied from the forklift battery 11. [

It is preferable that the operation of the ignorable air conditioner 20 be performed stably by sensing the supply of voltage and current, preferably including both the voltage sensing member and the current sensing member.

In addition, the power supply output level controller 34 controls the power supply value of the forklift battery 11 sensed by the power supply sensing unit 341 to the capacitor fan corresponding to the power supply value read from the memory 32 And a capacitor fan output step determiner 342 for analyzing the output level value of the capacitor fan and transmitting the numerical value of the output level value to the capacitor fan power supply unit 35 side.

The power supply output level control unit 34 controls the power supply output level of the forklift battery 11 sensed by the power detection unit 341 to a value corresponding to the power value read from the memory 32 And an eva-fan output step determiner 343 for analyzing the output level value of the eva-fan power supply unit 36 and transmitting the numerical value of the output level value to the eva-fan power supply unit 36 side.

Therefore, the classification table data for the output level value and the power value corresponding to the condenser fan, the evaporator fan, etc. stored in the memory 32 may be stored and operated.

Thus, when the forklift battery 11 or the like due to the vehicle operation such as the forklift 10 is lowered depending on the case of the vehicle power supply, the power consumed by the ignorable air conditioner 20 is also controlled in response thereto, ), In addition to stable operation of the forklift 10 and the like.

That is, when the battery power of an engine-driven vehicle such as gasoline or diesel is used.

Particularly, in the case of an electric vehicle running on a battery-powered vehicle, the vehicle is operated using the battery power charged without a separate energy source, and the ignorable air conditioner is also operated. Therefore, It will be able to operate the battery power efficiently.

Next, the ignition air conditioner 20 according to the present invention, the condenser 22 is positioned rearward from the rear upper surface 12 of the forklift, and the evaporator 23 is positioned forward of the forklift 10 .

A duct for air flow connected to the evaporator 23 includes a cool air discharge duct 27 through which cool air is discharged from the evaporator 23 and an indoor air inlet 26 through which indoor air is sucked will be.

In addition, the air conditioner control panel 25 is located at one side of the evaporator 23 so that the user can set a desired temperature, adjust the intensity of the cold wind, and other necessary operations.

In addition, a lateral induction discharge swash plate 28 for guiding cold air to flow in the lateral direction is provided in the cold air discharge duct 27. The air introduced from the indoor air inlet 26 to the evaporator 23 is heat- And is discharged to the cold air discharge duct (27). Therefore, the flow direction of the cold air is changed in the lateral direction by the side induction discharge swash plate 28 formed in the inclined plane inside the cold air discharge duct 27.

A rectangular discharge coupling portion 271 connected laterally in the cool air discharge duct 27 and connected to a longitudinal long-side duct 41 having a longer length than the short-side duct 42, A single discharge coupling portion 272 to which the discharge side coupling portion 272 is connected, and the like.

And a cool air flow duct (40) connected to the cool air discharge duct (27) to supply cool air of the evaporator (23) to a cool air upper discharge port (60) for discharging the cool air to the room.

That is, the cold air flow duct 40 is coupled to the side discharge joint portion of the cold air discharge duct 27 such as the long discharge joint portion 271 and the short discharge joint portion 272, Is discharged.

And a cool air discharge port 60 for discharging the cool air supplied through the cool air flow duct 40 to the room of the forklift.

In addition, the cold air flow duct (40) is a lateral exhaust duct, and has a cool air upper discharge port (60) on both sides in the forklift room. The cool air discharge duct And a long-side duct (41).

In order to allow the cool air to flow in the opposite direction, a cooler upper discharge port (60) is provided on both sides in the forklift room, and a short side duct (42 .

As a result, the cold air that has flowed forward through the evaporator 23 flows in the lateral direction by the long-side duct 41 and the short-side duct 42, which are the side discharge ducts on both sides. For this purpose, the cold air directed in the forward direction flows in the lateral direction by changing the flow direction by the side induction discharge swash plate 28 formed in the cold air discharge duct 27.

And an upper flow duct 50 connected to an end portion of the long-side duct 41 and the short-side duct 42 and having an upper portion connected to the cool air upper discharge port 60.

That is, the cool air is discharged to the cool air upper discharge port 60 provided on the upper side by the upward flow duct 50.

The cool air discharged to the inside of the forklift 10 through the cool air upper discharge port 60 is discharged from both sides of the user's rear side in all directions.

Accordingly, the cold air, which is generally cold air, flows downward from the upper portion. Accordingly, the cold air discharged from the upper air outlet 60 installed on the upper side of the forklift 10 is discharged from the upper portion of the user's rear side, Therefore, it is possible to provide a coolness to a user located in front of the user.

In addition, the long-side duct 41 is connected to the long-side discharge coupling portion 271 and is formed into a pipe shape and provided with a long-side lateral extending flow portion 411 through which cold air flows, and the long- 411 and a long side lateral front cover 412 coupled to cover the front side of the main body 411. Therefore, by opening the long-side front cover 412 and confirming the state inside the long-side direction extending flow portion 411, it is possible to work effectively for removing foreign matter and the like.

The short side duct 42 includes a short side extending flow portion 421 connected to the short side discharge coupling portion 272 and formed in a pipe shape and through which cold air flows, and the short side extending flow portion 412 Side front cover 422 that is coupled to cover the front of the vehicle. Therefore, by opening the short-side front cover 422 and checking the state inside the short-side-side extending flow portion 421, it is possible to work effectively for removing foreign matter and the like.

In addition, at least one of the long-side duct 41 and the short-side duct 42 forms an inclined surface with the long-side lateral flow section 411 and the short-side lateral flow section 421, 27 for guiding the cool air flowing in the rear direction to flow in the rear direction. Thus, the cold air flowing in the lateral direction along the long-side direction extending flow portion 411 and the short side lateral flow portion 421 is changed in the flow direction backward by the inclined surfaces of the rear inclined induction flow portion 43.

At least one of the long-side duct 41 and the short-side duct 42 has a rear flow portion 44 for guiding the flow direction of the cool air to flow rearwardly after the rear inclined induction flow portion 43 do.

At least one of the long-side duct 41 and the short-side duct 42 has a side flow portion 45 for accumulating cold air so that cold air flowing through the rear flow portion 44 flows in a lateral direction So that cold air flows in both outward directions.

At least one of the long-side duct 41 and the short-side duct 42 forms an inclined surface with respect to the rear flow portion 44 so as to guide the flow of cold air laterally in the rear flow portion 44. [ And an induction slope (46). That is, between the side flow portion 45 and the rear flow portion 44, cold air flows outwardly sideways by the side guide slopes 46, which are inclined slopes at different angles from these.

At least one of the long-side duct 41 and the short-side duct 42 is connected to a side upper connecting portion 47 for connecting the lower portion of the side flow portion 45 and the lower portion of the upper flow duct 50, ).

Next, the upward flow duct 50 for allowing the cool air to flow upward in the lower portion of the evaporator 23, the cold air discharge duct 27, the long side duct 41, the short side duct 42, The upper flow duct 50 is connected to at least one of the longitudinal long-side duct 41 and the short-side duct 42 under the upward flow duct 50 and connected to the upper- An upper duct connecting portion 51 is provided. The cool air is supplied to the inside of the upward flow duct 50 by connecting the cool air discharge duct 27, the long side duct 41 and the short side duct 42 connected to the evaporator 23.

And an upwardly extending flow part (52) for allowing cool air to flow upward from the upper duct connection part (51). Through this upwardly extending flow portion 52, cool air flows from below into the upper portion of the forklift 10.

And an upper discharge connection part 53 connected to the cold air discharge port 60 at the upper part of the upwardly extending flow part 52.

And an upper cooling air accumulating space part 54 which is connected to the upper discharge connecting part 53 and is located above the upwardly extending flow part 52 and forms a space for gathering the flowing cold air, 54) collects cold air, which is a considerable amount of cold air, and serves as a kind of cool air tank. So that the discharge of the cool air discharged to the cold air discharge port 60 can be kept constant. Therefore, the user will be able to constantly supply the desired cool air.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The technical idea of the present invention should not be construed as being limited.

10: Forklift 11: Forklift battery
20: Ignition air conditioner 21: Compressor
22: Capacitor 23: Evaporator
25: air conditioner control panel 27: cold air discharge duct
30: air conditioner controller 40: cold air flow duct
50: Upflow duct 60: Cold air outlet

Claims (4)

Power is supplied from the forklift battery 11,
A compressor 21 for compressing the refrigerant;
A condenser 22 for condensing the refrigerant compressed in the compressor 21;
An expansion valve for throttling the refrigerant condensed in the condenser 22; And
And an evaporator (23) for evaporating the refrigerant flowing from the expansion valve,
An ignorable air conditioner provided on an electric forklift and provided on a rear upper surface (12) of a forklift truck on which a driving unit behind a forklift (10) is located,
The ignition air conditioner
The condenser 22 is positioned rearward from the rear upper surface 12 of the forklift truck and the evaporator 23 is positioned forward of the forklift 10,
A duct for air flow connected to the evaporator 23 includes a cool air discharge duct 27 through which cool air is discharged from the evaporator 23 and an indoor air inlet 26 for sucking room air,
An air conditioner control panel 25 is positioned at one side of the evaporator 23,
The cool air discharge duct 27 is provided with a lateral induction discharge swash plate 28 for guiding cool air to flow laterally,
A rectangular discharge coupling portion 271 connected laterally in the cold discharge duct 27 and connected to a longitudinal long-side duct 41 having a longer length than the short-side duct 42; And
And a single discharge coupling part (272) to which the short side duct (42) is connected.
The method according to claim 1,
Said ignorable air conditioner comprising an air conditioner controller (30) for controlling the operation of members of the neglected air conditioner,
The air conditioner controller (30)
A controller 31 for controlling the members;
A memory (32) for storing drive setting data of the members; And
And a power supply unit 33 that receives power from the forklift battery 11 and supplies power to the members including the compressor 21, the condenser 22 fan, and the evaporator 23 fan,
The air conditioner controller (30)
A power supply output level controller 34 for controlling the intensity of the power supplied from the forklift battery 11 to the condenser fan 22 and the fan of the evaporator 23 according to the power intensity, ;
A condenser fan power supply unit 35 for supplying power from the power supply unit 33 to the fan side of the condenser 22; And
And an eva-fan power supply unit (36) for supplying power of the power source unit (33) to the fan side of the evaporator (23).
delete The method according to claim 1,
A cool air flow duct (40) connected to the cool air discharge duct (27) and supplying the cool air to the cool air upper discharge port (60) for discharging cool air of the evaporator (23) to the room. And
And a cool air discharge port (60) for discharging cool air supplied through the cool air flow duct (40) to a forklift room,
The cold air flow duct (40)
A long-side duct (41) having a cool air upper discharge port (60) on both sides of the forklift and provided at a portion farther from the cool air discharge duct (27)
A front side duct (42) provided at both sides of the forklift with a cool air upper discharge port (60) and installed at a portion between the cool air discharge duct (27) and the room side wall to flow cool air; And
And an upper flow duct (50) having a lower portion connected to an end portion of the long side duct (41) and a short side duct (42), and an upper portion connected to a cool air upper discharge port (60)
The long-side duct 41 is connected to the long-side discharge coupling portion 271 and is formed into a pipe shape, and has a long-side lateral extending flow portion 411 through which cool air flows. And a long side lateral front cover 412 coupled to cover the front side of the long side lateral extending flow portion 411,
The short side duct (42) includes a short side extending flow portion (421) connected to the short side discharge coupling portion (272) and having a pipe shape and through which cool air flows; And a short side lateral front cover (422) coupled to cover the front surface of the short side extending flow portion (421)
The cold air flow duct (40)
One or more of the long-side ducts 41 and the short-side ducts 42 form an inclined surface with any one of the long-side lateral flow portion 411 and the short-side lateral flow portion 421, A rear inclined inducing flow portion 43 for guiding the cool air flowing in the lateral direction to flow in the rear direction;
At least one of the long-side duct (41) and the short-side duct (42) includes a rear flow portion (44) for guiding the flow direction of the cold air to flow rearwardly after the rear inclined induction flow portion (43);
At least one of the long-side duct (41) and the short-side duct (42) includes a side flow portion (45) for accumulating cold air so that cold air flowing through the rear flow portion (44) flows in a lateral direction; And
At least one of the long-side duct 41 and the short-side duct 42 forms an inclined surface with the rear flow portion 44, and a side induction inducing flow of the cool air laterally in the rear flow portion 44 Includes an inclined surface (46)
One or more of the long-side ducts 41 and the short-side ducts 42 may be connected to the upper side flow connecting portion 47 through which the cool air flows by connecting the side flow portion 45 and the lower portion of the upward flow duct 50 ≪ / RTI &
The upward flow duct (50)
An upper duct connecting portion 51 connected to the side upper connecting portion 47 below the upper flow duct 50;
An upwardly extending flow part (52) for allowing cool air to flow upward from the upper duct connection part (51);
An upward discharge connecting portion 53 connected to the cold air discharge port 60 at the upper portion of the upwardly extending flow portion 52; And
And an upper air cooler accumulating space part (54) which is connected to the upper discharge connecting part (53) and is located above the upwardly extending flow part (52) and forms a space for gathering the flowing cold air, .

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