KR20220132861A - Device For Controlling The Indoor Temperature Of Vehicle Using Air Convection - Google Patents

Abstract

The present invention relates to an indoor temperature control device of an electric vehicle using a convection phenomenon of air. More specifically, the present invention generates convection of air through an installation position of a condenser positioned in a lower end of a vehicle and an evaporator positioned in an upper end of the vehicle to control indoor temperature of the electric vehicle. Specifically, warm air near the condenser installed in the lower end of the vehicle flows from a lower side to an upper side due to a convection phenomenon during heating of the vehicle, and cold air near the evaporator installed in the upper end of the vehicle flows from the upper side to the lower side and is convected to control temperature during cooling of the vehicle.

Description

Device For Controlling The Indoor Temperature Of Vehicle Using Air Convection

The present invention relates to an apparatus for controlling the indoor temperature of a vehicle using convection of air, and more particularly, to an apparatus for controlling the indoor temperature of an electric vehicle using convection of air by evaporators and condensers located at the top and bottom of the vehicle, respectively. it's about

The present invention relates to a device for controlling the indoor temperature of an electric vehicle using a convection phenomenon of air, and more particularly, to an electric vehicle by generating convection of air through an installation position of an evaporator located at the top of the vehicle and a condenser located at the bottom of the vehicle. It relates to a device for controlling the indoor temperature of

In recent years, as air pollution becomes serious due to exhaust gas emitted from internal combustion engine vehicles, eco-friendly electric vehicles are in the spotlight. Existing internal combustion engine vehicles use engine waste heat to heat the interior of the vehicle and use a refrigerant cycle to cool the interior, whereas eco-friendly vehicles do not have an engine and thus achieve both cooling and heating of the interior of the vehicle through a refrigerant cycle. . In addition, the current vehicle interior temperature control method of the air conditioner system for electric vehicles uses a structure to control the vehicle interior temperature by exchanging heat with the interior of the vehicle by using a fan for cold or hot air around the evaporator and condenser, respectively. . However, this method has a problem in that cold or hot air may be in direct contact with the driver, causing discomfort to the driver due to a sudden temperature change.

The present invention has been devised to solve the problems of the prior art as described above, and by locating an evaporator at the upper end of the vehicle and a condenser at the lower end of the vehicle, the indoor temperature of the electric vehicle is controlled through the convection phenomenon of air due to the temperature difference. Its purpose is to control.

The problem to be solved by the present invention is not limited to the above problem, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

According to an aspect of the present invention for achieving the above object, an apparatus for controlling an indoor temperature of a vehicle using a convection phenomenon of air includes a compressor for compressing a gaseous refrigerant to produce a high-temperature and high-pressure gaseous refrigerant and supplying it to a condenser; a condenser installed to be located at the bottom of the vehicle, condensing the high-temperature and high-pressure gaseous refrigerant compressed by the compressor into medium-temperature and high-pressure liquid refrigerant and sending it to an expansion valve; an expansion valve that rapidly expands the liquid refrigerant discharged from the condenser to form a fog state of low temperature and low pressure and delivers it to the evaporator; an evaporator installed to be located at the top of the vehicle, evaporating the refrigerant in the mist state delivered from the expansion valve, making it vaporized again, and transferring it to the compressor; and a pipe that is built into the vehicle and connects the compressor, the condenser, the evaporator and the expansion valve. When the vehicle is heated, the warm air around the condenser installed at the bottom of the vehicle moves downward due to convection. It is characterized in that the temperature is controlled by moving from the upper side to the upper side, and convecting the cold air on the side of the evaporator installed at the upper side during cooling while moving from the upper side to the lower side.

At this time, an outdoor evaporator door and an indoor evaporator door are installed outside the evaporator, and an outdoor condenser door and an indoor condenser door are installed outside the condenser, and the evaporator door and the condenser door are connected to the outdoor or indoor side. It is characterized in that selective opening and closing is possible.

Also, in the cooling mode, the indoor evaporator door and the outdoor condenser door are opened to discharge warm air around the condenser to the outside of the vehicle. It is characterized in that the cool air of the vehicle is discharged to the outside of the vehicle.

In addition, it is characterized in that it may be configured to include a blower that helps the air to circulate rapidly in the vicinity of the evaporator and the condenser.

In addition, the evaporator and the condenser are configured in plurality, characterized in that selective temperature control is possible.

The device for controlling the indoor temperature of a vehicle using the convection phenomenon of air according to the present invention naturally cools and cools the room using the convection phenomenon of cold air going down and hot air rising, thereby providing a comfortable temperature without artificially generated wind or cold air rejection. can keep

In addition, the indoor temperature of the vehicle is controlled by using the convection phenomenon of the air due to the temperature difference instead of temperature control by the air volume. Therefore, the inside of the vehicle can be heated and cooled uniformly regardless of the distance of the air conditioner.

In addition, since the indoor temperature is controlled through the installation positions of the evaporator and the condenser, a complicated configuration is not required to control the indoor temperature.

In addition, the evaporator door and the condenser door can be selectively opened and closed to the outdoor side or the indoor side, so that unnecessary warm or cold air can be discharged to the outside.

In addition, there is a blower adjacent to the evaporator and the condenser so that the air can be circulated more quickly.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view illustrating installation positions of a compressor, a condenser, an evaporator, and an expansion valve in a conventional indoor temperature control device for an internal combustion engine vehicle.
FIG. 2 is a view showing a location in which an indoor temperature control device component of an electric vehicle is installed according to an embodiment of the present invention. Referring to FIG.
3 is a view illustrating an open/closed state of a door and an air flow when cooling a vehicle according to an embodiment of the present invention.
4 is a diagram illustrating an open/closed state of a door and an air flow during vehicle heating according to an embodiment of the present invention.
5 is a view showing an indoor temperature control device in which a plurality of evaporators and condensers are installed according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some components irrelevant to the gist of the present invention will be omitted or compressed, but the omitted configuration is not necessarily a configuration that is not necessary in the present invention, and it will be used in combination by those of ordinary skill in the art to which the present invention belongs. can

1 is a view showing installation positions of a compressor 10, a condenser 20, an evaporator 30, and an expansion valve 40 in an indoor temperature control device 1 of a conventional internal combustion engine vehicle, and FIG. 2 is a view showing the present invention. It is a view showing the location where the parts of the indoor temperature control device 1 of the electric vehicle are installed according to the embodiment of 4 is a view showing an open/closed state of a door and a flow of air during heating of a vehicle according to an embodiment of the present invention, and FIG. 5 is a plurality of evaporators 30 and a condenser ( 20) is a diagram showing an electric vehicle installed.

1 to 5 , the indoor temperature control device 1 of the vehicle includes a compressor 10 , a condenser 20 , an outdoor condensing door 23 , an indoor condensing door 24 , and an evaporator 30 . ), an outdoor evaporator door 33 , an indoor evaporator door 34 , an expansion valve 40 , a pipe 50 and a blower 60 .

1 shows the positions of the compressor 10, the condenser 20, the evaporator 30 and the expansion valve 40 in the indoor temperature control device 1 of a conventional internal combustion engine vehicle. In the air conditioner, a compressor (10), a condenser (20), an evaporator (30) and an expansion valve (40) are located in the front part of the vehicle.

According to this configuration, when the compressor 10 is driven, the discharged heat exchange medium is circulated back to the compressor 10 through the condenser 20 and the evaporator 30. In a heat exchange method by the fan 70, cold air around the evaporator 30 is introduced into the vehicle interior to cool the vehicle, and when the interior temperature is low, the engine waste heat is used to increase the vehicle interior temperature. Regulates the temperature inside the vehicle. In this way, the cold air around the evaporator 30 or the air warmed by engine waste heat is in direct contact with the driver, and may cause discomfort to the occupants of the vehicle due to a sudden temperature change. In addition, this method is suitable for a conventional internal combustion engine vehicle using engine waste heat, and since the electric vehicle does not have engine waste heat, it is inefficient for heating and cooling of the electric vehicle.

FIG. 2 is a view showing a location where parts of the indoor temperature control device 1 of an electric vehicle are installed according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described in detail.

However, some components irrelevant to the gist of the present invention will be omitted or compressed, but the omitted configuration is not necessarily a configuration that is not necessary in the present invention, and it will be used in combination by those of ordinary skill in the art to which the present invention belongs. can

The indoor temperature control device (1) of the electric vehicle of the present invention includes a compressor (10), a condenser (20), an outdoor condensing door (23), an indoor condensing door (24), an evaporator (30), an outdoor evaporator door ( 33), an indoor evaporator door 34, an expansion valve 40, a pipe 50, and a blower 60.

The compressor 10 compresses the refrigerant in a gaseous state to make it into a gaseous state of high temperature and high pressure and supplies it to the condenser 20 . Here, the compressor 10 is installed in the front of the vehicle and the expansion valve 40 is installed in the rear of the vehicle. It does not matter even if it installs in arbitrary places.

The condenser 20 is installed to be located at the lower end of the vehicle, and condenses the high-temperature and high-pressure gaseous refrigerant compressed in the compressor 10 into medium-temperature and high-pressure liquid refrigerant and sends it to the expansion valve. Since the condenser 20 heats the outside air while condensing it by taking heat from the refrigerant, the outside air is heated in the condenser 20 to generate warm air for heating.

The expansion valve 40 rapidly expands the liquid refrigerant discharged from the condenser 20 to form a low-temperature, low-pressure fog state and delivers it to the evaporator 30 .

The evaporator 30 is installed to be located at the top of the vehicle, evaporates the refrigerant in the mist state delivered from the expansion valve 40, makes it vaporized again, and discharges it to the compressor 10, and in this process, heat from the surrounding air and cools the surrounding air.

At this time, the condenser 20 is installed at the bottom of the vehicle and the evaporator 30 is installed at the top of the vehicle. It moves from the lower side to the upper side by the open indoor condensing door 24, and when cooling, the cold air from the evaporator 30 installed at the top moves from the upper side to the lower side by the open indoor evaporator door 34. cycled

In other words, the cold air around the evaporator 30 goes down to the lower side of the vehicle and the warm air around the condenser 20 goes up to the upper side of the vehicle. By using convection phenomenon to naturally cool and cool the room, it maintains a comfortable temperature without artificially generated wind or cold air rejection.

The compressor 10 , the condenser 20 , the evaporator 30 , and the expansion valve 40 are connected through a pipe 50 built into the vehicle itself, and a refrigerant flows through the pipe 50 .

An outdoor evaporator door 33 and an indoor evaporator door 34 are installed outside the evaporator 30, and an outdoor condenser door 23 and an indoor condenser door 24 are installed outside the condenser 20. installed, and the evaporator doors 33 and 34 and the condensing doors 23 and 24 can be selectively opened and closed to an outdoor side or an indoor side. In the cooling mode, the high-temperature air generated around the condenser 20 must be discharged to the outside of the vehicle, not to the inside of the vehicle, so the high-temperature air is discharged to the outside of the vehicle through the open condenser door 23 on the outside, and heating In the mode, the cooled low-temperature air around the evaporator 30 is discharged to the outside of the vehicle through the open outdoor evaporator door 33 . The evaporator doors 33 and 34 and the condensing doors 23 and 24 are heat-blocking materials, and when the evaporator doors 33 and 34 and the condensing doors 23 and 24 are closed, external warm and cold air may be blocked from moving indoors and outdoors.

A blower 60 for allowing air to circulate quickly is installed at a position adjacent to the evaporator 10 and the condenser 20 to help circulate air inside the vehicle.

In addition, a plurality of the evaporator 30 and the condenser 20 are installed to enable selective temperature control, which is illustrated in detail in FIG. 5 .

3 is a view illustrating an open/closed state of a door and an air flow when cooling a vehicle according to an embodiment of the present invention.

Hereinafter, a method of controlling the room temperature in the cooling mode will be described with reference to the drawings.

When the cooling mode of the vehicle is operated, the indoor evaporator door 34 is opened and the outdoor condenser door 23 is opened at the same time. Accordingly, the high-temperature air around the condenser 20 is discharged to the outside through the open condenser door 23 on the outdoor side, and at the same time, the cold air around the evaporator 30 moves from the top to the bottom, and the warm air that stays at the bottom is circulated by moving upwards. At this time, a blower 60 is installed at a position adjacent to the evaporator 10 and the condenser 20 to help the air circulate quickly.

In other words, the cold air around the evaporator 30 goes down to the lower side of the vehicle and the warm air around the condenser 20 goes up to the upper side of the vehicle. By using convection phenomenon to naturally cool and cool the room, it maintains a comfortable temperature without the feeling of resistance to artificially generated wind.

4 is a view illustrating an open/closed state of a door and a flow of air during heating of a vehicle according to an embodiment of the present invention.

Hereinafter, a method of controlling the room temperature in the heating mode will be described with reference to the drawings.

When the heating mode of the vehicle is operated, the indoor condenser door 24 is opened and the outdoor evaporator door 33 is opened at the same time. Accordingly, the cold air around the evaporator 30 is discharged to the outside through the open outdoor evaporator door 33, and at the same time, the warm air around the condenser 20 rises to the top of the vehicle by convection phenomenon, and at the top The cold air that stays moves to the lower part to circulate the air. At this time, a blower 60 is installed at a position adjacent to the evaporator 10 and the condenser 20 to help the air circulate quickly.

In other words, the warm air around the condenser 20 rises to the upper side of the vehicle and the cold air around the evaporator 30 naturally cools and cools the room using the convection phenomenon of the air that goes down to the lower side of the vehicle. By using the convection phenomenon of air by the

5 is a view showing an indoor temperature control device 1 in which a plurality of evaporators 30 and condensers 20 are installed according to an embodiment of the present invention.

The evaporator 30 and the condenser 20 may be configured in plurality as shown in FIG. 5 . Through this, by operating only the evaporator 30 and the condenser 20 installed in the front, or only the evaporator 30 and the condenser 20 installed in the rear, it is possible to selectively control the temperature in the front seat or the rear seat. In this way, it is also possible to install each of the front and rear, but it is also possible to install each on the left and right, so it is also possible to selectively control the temperature in the passenger seat and the driver's seat. In addition, the evaporator 30 and the condenser 20 can be installed by appropriately adjusting the quantity according to the capacity.

As described in detail above, in the device for controlling the indoor temperature of a vehicle using the convection phenomenon of air according to the present invention, the wind artificially generated by naturally cooling and heating the room using the convection phenomenon of air in which cold air goes down and hot air goes up. It is possible to maintain a comfortable temperature without feeling the cold or the cold.

In addition, the indoor temperature of the vehicle is controlled by using the convection phenomenon of the air due to the temperature difference instead of temperature control by the air volume. Therefore, the inside of the vehicle can be heated and cooled uniformly regardless of the distance of the air conditioner.

In addition, since the indoor temperature is controlled through the installation positions of the evaporator and the condenser, a complicated configuration is not required to control the indoor temperature.

In addition, the evaporator door and the condenser door can be selectively opened and closed to the outdoor side or the indoor side, so that unnecessary warm or cold air can be discharged to the outside.

In addition, a blower may be located adjacent to the evaporator and the condenser to allow the air to circulate more quickly.

The above-described preferred embodiments of the present invention have been disclosed for the purpose of illustration, and those skilled in the art with common knowledge about the present invention will be able to make various modifications, changes and additions within the spirit and scope of the present invention, such modifications, changes and additions are to be considered as falling within the scope of the claims of the present invention.

1: Room temperature control device
10: Compressor
20: condenser
23: outdoor condensing door
24: indoor condensing door
30: evaporator
33: outdoor evaporator door
34: indoor evaporator door
40: expansion valve
50: piping
60: blower
70: fan

Claims (5)

a compressor for compressing a gaseous refrigerant to make a high-temperature and high-pressure gaseous refrigerant and supplying it to a condenser;
a condenser installed to be located at the bottom of the vehicle, condensing the high-temperature and high-pressure gaseous refrigerant compressed by the compressor into medium-temperature and high-pressure liquid refrigerant and sending it to an expansion valve;
an expansion valve that rapidly expands the liquid refrigerant discharged from the condenser to form a fog state of low temperature and low pressure and delivers it to the evaporator;
an evaporator installed to be located at the top of the vehicle, evaporating the refrigerant in the mist state delivered from the expansion valve, making it vaporized again, and transferring it to the compressor; and
A pipe that is built into the vehicle itself and connects the compressor, the condenser, the evaporator, and the expansion valve;
When the vehicle is heated, the warm air around the condenser installed at the bottom of the vehicle moves from the bottom to the top due to the convection phenomenon, and when cooling the vehicle, the cold air from the evaporator installed at the top moves from the top to the bottom. A device for controlling the indoor temperature of a vehicle using the convection phenomenon of the controlled air.
According to claim 1,
An outdoor side evaporator door and an indoor side evaporator door are installed outside the evaporator, and an outdoor side condenser door and an indoor side condenser door are installed outside the condenser. An apparatus for controlling the indoor temperature of a vehicle using a convection phenomenon of air, characterized in that it is possible.
3. The method of claim 2,
In the cooling mode, the indoor evaporator door and the outdoor condenser door are opened so that warm air around the condenser is discharged to the outside of the vehicle. In the heating mode, the indoor condenser door and the outdoor evaporator door are opened and the An apparatus for controlling the indoor temperature of a vehicle using a convection phenomenon of air, characterized in that cold air is discharged to the outside of the vehicle.
According to claim 1,
An apparatus for controlling the indoor temperature of a vehicle using a convection phenomenon of air, characterized in that the evaporator and the condenser are adjacent to each other and include a blower that helps the air circulate rapidly.
According to claim 1,
The evaporator and the condenser are configured in plurality to allow selective temperature control.

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