KR100439887B1 - HVAC for vehicles - Google Patents

Abstract

The present invention relates to an air conditioning unit of a vehicle, and in particular, by improving the air conditioning unit to generate cold air and warmth to perform the heating and cooling in the cabin to smoothly control the flow of air without shrinking the interior space for maximizing the cooling and heating efficiency Apparatus, comprising an evaporator (110) and a heater core (120), and located between the evaporator (110) and the heater core (120) to the heater core (120) for air passing through the evaporator (110). In the air conditioning unit 100 consisting of a temperature control door 130 for controlling the flow, the evaporator 110, the heater core 120, the body portion 140 of the duct form surrounding the temperature control door 130, The temperature control door 130 is in the form of a panel hinged to each other to be slidable by the folding hinge 131 is divided into two stops one side by the drive hinge 132 to be rotated at an angle by an actuator (not shown) Is hinged to the body portion 140, the other side is configured to be guided to be inserted into the guide 141 formed on both sides of the inner surface of the body portion 140 to be flowable, improving the air conditioning unit of the vehicle compartment It is possible to smoothly control the flow of air without shrinking the internal space, so that the heat exchange is carried out in the entire area of the evaporator and the heater core to maximize the cooling and heating efficiency to improve the merchandise and economics of the vehicle.

Description

HVAC unit for vehicles

The present invention relates to an air conditioning unit of a vehicle, and in particular, an apparatus for maximizing cooling and heating efficiency by smoothly controlling the flow of air without reducing the interior space by improving an air conditioning unit that generates cold and warm air to perform cooling and heating in a vehicle interior. As a result, the present invention relates to a device capable of maximizing cooling and heating efficiency by performing heat exchange on an entire area of an evaporator and a heater core, thereby improving the merchandise and economy of a vehicle.

In general, the air conditioning unit of the vehicle is located in the dash panel from the passenger seat to the center of the vehicle, and the evaporator for cooling and the heater core for heating are located in the longitudinal direction, and are in communication with the air duct and the indoor discharge port. Therefore, after the air supplied to the air duct is heat-exchanged in the air conditioning unit, the air is blown to the indoor discharge port, thereby cooling and heating the inside of the vehicle compartment.

The air conditioning unit is provided with a temperature control door to control the flow of air supplied to the evaporator and the heater core according to the rotation angle to selectively cool or heat.

In addition, the evaporator of the air conditioning unit as a part of the air conditioner refrigerant flows inside to absorb the evaporation heat to lower the ambient air temperature, the heater core to allow the high temperature coolant flows therein to increase the ambient air temperature Raise it.

1 is a side cross-sectional view showing an air conditioning unit of a conventional vehicle, and FIG. 2 is a side cross-sectional view showing an operation example of an air conditioning unit of a conventional vehicle.

1 and 2, the air conditioner unit 10 of the conventional vehicle is located between the evaporator 11 and the heater core 12, the evaporator 11 and the heater core 12, the evaporator Temperature control door 13 for controlling the flow to the heater core 12 for the air passing through the (11), and a duct form surrounding the evaporator 11, the heater core 12, the temperature control door 13 The body portion 14 is composed of.

At this time, one side of the air conditioning unit 10, that is, the left side in the drawing, the air duct (not shown) provided with a blower (not shown) is connected in communication with each other to suck the outside air or bet to supply the air conditioning unit 10 The other side of the air conditioning unit 10, that is, the upper side of the drawing, is communicatively coupled with an indoor discharge port (not shown) so that air cooled by air passing through the air conditioning unit 10 can be blown into the vehicle compartment.

In addition, an auxiliary heater 15 may be additionally located at one side of the heater core 12 located in the air conditioning unit 10.

As shown in FIG. 1, when the air conditioner unit 10 of the conventional vehicle configured as described above is introduced into the air conditioner unit 10 by an air blower or an air blower through an air duct connected to the left side, The introduced outside air or inside air moves to the right side in the drawing in the duct-shaped body 14, first, passes through the evaporator 11, and then, the air passing through the evaporator 11 is a temperature control door. After selectively passing through the heater core 12 in accordance with the position of (13), it is blown into the cabin through the indoor discharge port provided in the dash panel or the floor panel in the cabin.

At this time, if the heating is to be made in the cabin, as shown in Figure 1, by rotating the temperature control door 13 in the clockwise direction, the air supplied to the air conditioning unit 10 does not circulate the refrigerant Passing through the evaporator 11 in a state, and all the air passing through the evaporator 11 passes through the heater core 12, the hot air generated while passing through the heater core 12 into the cabin Heating in the compartment is ensured by supplying.

On the contrary, if cooling is to be performed in the vehicle compartment, the temperature control door 13 is rotated counterclockwise, that is, to position A shown in FIG. 1, whereby the refrigerant supplied to the air conditioning unit 10 circulates. Passing through the evaporator 11 in a state of being in a state, and cooling all the air passing through the evaporator 11 is supplied directly into the cabin without passing through the heater core 12 to achieve cooling in the cabin.

Similarly, if no special temperature control is required in the vehicle compartment, as shown in FIG. 2, the temperature control door 13 is positioned in the middle so that the air supplied to the air conditioning unit 10 is supplied to the evaporator 11. In some cases, some of the air passing through the evaporator 11 passes through the heater core 12, and some of the air passes through the heater core 12 and is directly supplied into the cabin without passing through the heater core 12.

However, in the conventional air conditioning unit, since an evaporator, a temperature control door, and a heater core are located in a straight line in the longitudinal direction, an auxiliary heater is added to the inside of the air conditioning unit, or heat exchange is performed in the evaporator and the heater core. When the length of the temperature control door is elongated to achieve this effect effectively, the overall length of the air conditioning unit is increased so that the interior space of the vehicle is narrowed by the length increase of the air conditioning unit, and the length of the temperature control door is shortened. The heat exchange area of the evaporator and the heater core is reduced to reduce the cooling and heating efficiency, and as shown in FIG. 2, when the temperature control door is located in the middle, the temperature control door is severely flown due to the air volume, or The vortex is generated at the back of the temperature control door, that is, at position B of FIG. There was a technical problem that the noise is generated to enter the interior of the vehicle to reduce the ride comfort.

The present invention is to solve the above problems, by improving the air conditioning unit of the vehicle can smoothly control the flow of air without shrinking the interior space of the vehicle, heat exchange is carried out in the entire area of the evaporator and heater core It is to provide an air conditioning unit of a vehicle that can maximize the efficiency to improve the commerciality and economics of the vehicle.

The present invention is an evaporator and heater core, a temperature control door positioned between the evaporator and the heater core to control the flow of air passing through the evaporator to the heater core, and the evaporator, heater core, temperature control door In the air conditioning unit consisting of a duct-shaped body portion surrounding the, the temperature control door is divided into two panel hinges to be slidable by a folding hinge, one side is driven by a drive hinge to be rotated at a predetermined angle by an actuator. The hinge is fastened to the body portion, and the other side is achieved by being configured to be guided to be inserted into the guide to be formed at both sides of the inner surface of the body portion.

1 is a side cross-sectional view showing an air conditioning unit of a conventional vehicle;

Figure 2 is a side cross-sectional view showing an operation example for the air conditioning unit of a conventional vehicle;

Figure 3 shows an example of the operation during heating for the air conditioning unit of the vehicle of the present invention

Cross Section,

Figure 4 shows an example of the operation during cooling of the air conditioning unit of the vehicle of the present invention

Cross Section,

Figure 5 shows another operation example for the air conditioning unit of the vehicle of the present invention

Cross Section,

Figure 6 is a temperature control door and guide for the air conditioning unit of the vehicle of the present invention

Side sectional view showing.

<Explanation of symbols for the main parts of the drawings>

100: air conditioning unit 110: evaporator

120: heater core 130: temperature control door

131: folded hinge 131a: hook end

132: driving hinge 133: guide projection

140: body 150: auxiliary heater

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a side cross-sectional view showing an operation example when heating the air conditioning unit of the vehicle of the present invention, Figure 4 is a side cross-sectional view showing an operation example when cooling the air conditioning unit of the vehicle of the present invention, Figure 5 A side sectional view showing another example of operation of the air conditioning unit of the vehicle of the invention.

6 is a side sectional view showing a temperature control door and a guide for an air conditioning unit of a vehicle of the present invention.

As shown in FIGS. 3 to 6, the air conditioning unit of the vehicle of the present invention is located between the evaporator 110 and the heater core 120, the evaporator 110 and the heater core 120, and the evaporator 110. Temperature control door 130 for controlling the flow to the heater core 120 for the air passing through the) and the duct-shaped body surrounding the evaporator 110, heater core 120, temperature control door 130 In the air conditioning unit 100 consisting of a portion 140, the temperature control door 130 is one side of the actuator in the form of a panel hinged to each other to be slidable by a folding hinge 131 is divided into two (2) Is hinged to the body portion 140 by a drive hinge 132 to be rotated by a predetermined angle by the other side is inserted into the guide 141 formed on both sides of the inner surface of the body portion 140 so as to be able to flow a certain section. Configured to be guided by the technical basic characteristics The.

In this case, when the temperature control door 130 is unfolded, the folding hinge 131 may protrude from the locking end 131a so as to be limited to a maximum of 180 degrees, and the body on the other side of the temperature control door 130. The guide protrusion 133 may protrude from both sides to be inserted into the guide 141 of the part 140 and guided.

At this time, one side of the air conditioning unit 100, that is, the left side in the drawing is connected to the air duct (not shown) having a blower (not shown) to be supplied to the air conditioning unit 100 to suck the outside air or bet The other side of the air conditioning unit 100, ie, the upper side of the drawing, is communicatively coupled with an indoor discharge port (not shown) so that air cooled by air passing through the air conditioning unit 100 may be blown into the vehicle compartment.

In addition, the auxiliary heater 150 may be further positioned on one side of the heater core 120 located inside the air conditioning unit 100.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 3 to 6.

As shown in FIG. 3 to FIG. 6, the air conditioner unit 100 of the vehicle of the present invention configured as described above has an outside air or a bet inside the air conditioner unit 100 through an air duct connected to the left side by a blower. When introduced into, the introduced outside air or bet is moved to the right in the drawing inside the duct-shaped body portion 140, first, to pass through the evaporator 110, and then, the air passed through the evaporator 110 After selectively passing through the heater core 120 in accordance with the position of the temperature control door 130, it is blown into the cabin through the interior discharge port provided in the dash panel or the floor panel in the compartment.

At this time, as shown in Figure 6, the temperature control door 130 is made of a panel form hinged to each other so as to be slidable by the folding hinge 131 is divided into two, the door of the temperature control door 130 One side is hinged to the body portion 140 by a drive hinge 132 to be rotated at an angle by an actuator (not shown), while the other side guides 141 formed on both inner surfaces of the body portion 140 Since it is inserted and guided so as to flow in a vertical section in a predetermined section), the temperature control door 130 is folded or unfolded while being rotated by the actuator in accordance with the driver's air-conditioning selection to control the flow of air.

Referring to the operation according to the heating and cooling for the air conditioning unit 100 of the vehicle of the present invention as described above are as follows.

First, if the driver wants to be heated in the cabin, as shown in Figures 3 and 6 by the actuator, the temperature control door 130 is rotated clockwise around the drive hinge 132, At this time, the guide protrusion 133 formed on the other side of the temperature control door 130 is guided upward in the state inserted into the guide 141 of the body portion 140, the temperature control door 130 is stopped. The folding hinge 131 is to be folded around the center.

Therefore, the air supplied to the air conditioning unit 100 passes through the evaporator 110 in a state where the refrigerant is not circulated, and all the air passing through the evaporator 110 passes through the heater core 120. Thus, the hot air generated while passing through the heater core 120 is supplied into the vehicle compartment, thereby heating the vehicle compartment.

On the contrary, if the driver wants to cool the vehicle, the actuator adjusts the temperature control door 130 to rotate counterclockwise about the driving hinge 132 as shown in FIGS. 4 and 6. Accordingly, the guide projection 133 formed on the other side of the temperature control door 130 is guided downward in the state inserted into the guide 141 of the body portion 140, the temperature control door 130 ) Is unfolded around the folding hinge 131 of the suspension.

At this time, the folding hinge 131, as shown in Figure 4 and 6, when the temperature control door 130 is fully deployed, the locking end (131a) is formed to protrude to be limited to a maximum of 180 degrees, the When the temperature control door 130 is fully extended, it is stopped by the locking end 131a to prevent the temperature control door 130 from being folded back in the opposite direction.

Therefore, the air supplied to the air conditioning unit 100 passes through the evaporator 110 in a state where the refrigerant is circulated, and all air cooled while passing through the evaporator 110 passes through the heater core 120. Cooling in the cabin is achieved by supplying directly into the cabin without passing.

Similarly, if no special temperature control is required in the cabin, as shown in FIGS. 5 and 6 by the actuator, the temperature control door 130 is rotated around the driving hinge 132, the temperature control The door is opened about halfway, and at this time, in the temperature control door 130, no vortex occurs due to the structural shape.

Therefore, some of the air supplied to the air conditioning unit 100 and passed through the evaporator 110 passes through the heater core 120, and some of the air passes directly into the cabin without passing through the heater core 120. It can also be supplied.

The air conditioning unit 100 of the vehicle of the present invention as described above effectively controls the air flow path using the slidable temperature control door 130, there is no noise caused by the vortex, the length of the temperature control door 130 Since it is not necessary to expand, heat exchange can be performed in the entire areas of the evaporator 110 and the heater core 120 without reducing the interior space of the vehicle, thereby efficiently increasing the heating and cooling efficiency.

The present invention as described above can improve the air conditioning unit of the vehicle to smoothly control the flow of air without reducing the interior space of the vehicle, it is possible to maximize the heating and cooling efficiency by heat exchange is made in the entire area of the evaporator and heater core It is an invention that can improve the merchandise and economics of the vehicle.

Claims (3)

An evaporator and a heater core, a temperature control door positioned between the evaporator and the heater core to control the flow of air passing through the evaporator to the heater core, and a duct type surrounding the evaporator, the heater core and the temperature control door. In the air conditioning unit consisting of the body portion, The temperature control door is hinged to the body part by a drive hinge to be rotated at a predetermined angle by the actuator in the form of a panel hinged to each other to be foldable by a folding hinge is divided into two, the other side of the body portion The air conditioning unit of the vehicle, characterized in that the guide is inserted to be guided in a certain section to be formed on the inner surface on both sides. The air conditioning unit of claim 1, wherein the folding hinge has a locking end protruding to be limited to a maximum of 180 degrees when the temperature control door is unfolded. The air conditioning unit of claim 1, wherein the other side of the temperature control door has guide protrusions protruding from both sides thereof so as to be inserted into and guided in the guide of the body portion.