KR20240063345A - Rear air conditioning unit for vehicle and rear air conditioning apparatus for vehicle including the same - Google Patents

Abstract

A rear air conditioning unit for a vehicle according to an embodiment of the present invention is installed on the side panel of the rear seat of a vehicle and discharges air to the left and right floors, wherein a first floor outlet and a second floor outlet are formed. a case, a blower unit that sucks air into the case and blows it, and a heat exchanger that exchanges heat with the air sucked into the case, and a bypass partition is formed between the left and right floors and the heat exchanger to separate the flow path, , An auxiliary temperature control door may be installed on the bypass partition wall to allow air that has passed through the heat exchanger to flow directly into the left floor or the right floor.

Description

Rear air conditioning unit for a vehicle and a rear air conditioning device for a vehicle including the same {REAR AIR CONDITIONING UNIT FOR VEHICLE AND REAR AIR CONDITIONING APPARATUS FOR VEHICLE INCLUDING THE SAME}

The present invention relates to a rear air conditioning unit for a vehicle, and more specifically, to a rear air conditioning unit for a vehicle for cooling or heating the rear seat of a vehicle and a rear air conditioning device for a vehicle including the same.

A vehicle air conditioning system is a device for cooling or heating the vehicle interior by introducing air from outside the vehicle into the vehicle interior or heating or cooling the air inside the vehicle during circulation. The inside of the air conditioning case is equipped with an evaporator and heater for cooling. A heater core for operation is provided. The vehicle air conditioning system is configured to selectively blow air cooled or heated by an evaporator or heater core to each part of the vehicle interior using a door for switching the blowing mode.

Automotive air conditioning systems are configured to discharge air for cooling or heating from a vent duct installed in the instrument panel at the front of the vehicle interior, so they can be used in vehicles with a large interior space, such as luxury cars or large vehicles such as vans or 4-wheel drive vehicles commonly known as RVs. In this case, the cooling or heating effect does not reach the rear seats sufficiently.

To solve this problem, in vehicles with large interior spaces, a separate rear air conditioning device is installed on the side panel to assist with cooling and heating performance for the rear seats.

This rear air conditioner is installed only on either the left or right side of the rear seat side panel, and the air discharged from the rear air conditioner is branched and discharged into the floor ducts installed on the left and right sides of the floor, respectively. For example, when the rear air conditioning system is installed on the right side panel, the path of the left follower duct is longer than the path of the right follower duct, so the temperature of the air at the time of final discharge is lower, resulting in a left and right temperature difference.

The present invention provides a rear air conditioning unit for a vehicle having a structure that can minimize the temperature difference between air discharged from the left and right sides of the rear seat floor of a vehicle, and a rear air conditioning device for a vehicle including the same.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the description below.

A rear air conditioning unit for a vehicle according to an embodiment of the present invention is installed on the side panel of the rear seat of a vehicle and discharges air to the left and right floors, wherein a first floor outlet and a second floor outlet are formed. case; a blower unit that sucks air into the case and blows it; and a heat exchanger that exchanges heat with air sucked into the case, wherein a bypass partition wall is formed to separate a flow path between the left and right floors and the heat exchanger, and the bypass partition wall allows air that has passed through the heat exchanger to flow to the left floor. Alternatively, an auxiliary temperature control door may be installed to allow direct inflow to the right floor side.

The case may be placed relatively close to one of the floor ducts that discharge air to the left floor and the right floor.

The auxiliary temperature control door may be disposed on a flow path connected to the floor duct located relatively far from the case.

The bypass partition wall may be installed on the downstream side of the heater core.

The bypass partition extends upward from the front of the heater core, and its upper portion may be bent backward to extend.

A bypass passage for air to bypass may be formed in the case on the downstream side of the heater core.

A separating partition wall may be installed between the flow path discharged to the first floor discharge port and the second floor discharge port.

The separation partition may be formed only in the open section of the auxiliary temperature control door.

The auxiliary temperature control door may be installed on the bypass partition to be openable and closed.

A main temperature control door may be installed in the case to control the temperature of the air between the evaporator and the heater core.

The auxiliary temperature control door may be opened when the temperature difference between the air discharged to the left and right floors is 5 degrees or more.

The heat exchanger may be a heat exchanger for cooling, heating, or cooling and heating.

A rear air conditioning system for a vehicle according to another embodiment of the present invention includes a case installed on the side panel of the rear seat of a vehicle and having a first floor outlet and a second floor outlet; a blower unit that sucks air into the case and blows it; a heat exchanger that exchanges heat with air sucked into the case; a first floor duct connected to the first floor discharge port to discharge air to the left floor; and a second floor duct connected to the second floor outlet to discharge air to the right floor, wherein a bypass partition wall is formed to separate a flow path between the left and right floors and the heat exchanger, and the bypass partition wall includes the second floor duct to discharge air to the right floor. An auxiliary temperature control door may be installed so that air that has passed through the heat exchanger can be directly introduced into the left floor or right floor.

Extension lengths of the first floor duct and the second floor duct may be different from each other.

The case may be placed relatively close to any one of the first floor duct and the second floor duct.

The auxiliary temperature control door may be disposed on a flow path connected to the first floor duct or the second floor duct located relatively far from the case.

According to one embodiment of the present invention, the temperature difference between the air discharged from the left and right sides of the rear seat floor of the vehicle can be minimized, thereby increasing the passenger's satisfaction with using the air conditioning device.

Figure 1 is a diagram showing a rear air conditioning unit for a vehicle according to an embodiment of the present invention.
Figure 2 is a diagram showing air being discharged to the floor from a rear air conditioning unit for a vehicle according to an embodiment of the present invention.
Figure 3 is a diagram showing a rear air conditioning system for a vehicle installed inside a vehicle according to an embodiment of the present invention.
Figure 4 is a diagram showing the flow of air in a rear air conditioning unit for a vehicle according to an embodiment of the present invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that it does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

In addition, throughout the specification, when "connected" is used, this does not mean that two or more components are directly connected, but rather that two or more components are indirectly connected through other components, or physically connected. It can mean not only being connected but also being electrically connected, or being integrated although referred to by different names depending on location or function.

Hereinafter, an embodiment of the manifold refrigerant module according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components are assigned the same drawing numbers and Redundant explanations will be omitted.

Figure 1 is a diagram showing a rear air conditioning unit for a vehicle according to an embodiment of the present invention, and Figure 2 is a diagram showing air being discharged to the floor from the rear air conditioning unit for a vehicle according to an embodiment of the present invention. 3 is a diagram showing a rear air conditioning system for a vehicle installed inside a vehicle according to an embodiment of the present invention.

As shown, the rear air conditioning unit for a vehicle according to an embodiment of the present invention includes a case 10 in which the first floor outlet 14 and the second floor outlet 16 are formed, and air is supplied to the case 10. It may include a blower unit 20 that sucks and blows air, and a heat exchanger that exchanges heat with the air sucked into the case 10. In addition, a bypass partition 42 is formed to separate the flow path between the left and right floors and the heat exchanger, and the bypass partition 42 allows air that has passed through the heat exchanger to flow directly into the left floor or the right floor. An auxiliary temperature control door 70 may be installed to allow this.

The vehicle air conditioning unit may be installed on the side panel 100 disposed on the side of the rear seat of the vehicle. The vehicle air conditioning unit is installed on either side of the side panels 100 on both sides and is responsible for rear seat air conditioning.

Case 10 has an air inlet (not shown) formed on the inlet side. Additionally, a blower unit 20 is installed on the air inlet side, and the blower unit 20 sucks air from the air inlet and forcibly blows the air into the case 10.

A vent outlet 12 is formed on one side of the case 10. The vent outlet 12 is a part where air introduced through the air inlet is discharged, and the discharged air may be discharged through the roof of the rear seat of the vehicle, etc.

Additionally, a first floor outlet 14 and a second floor outlet 16 are formed on one side of the case 10, respectively. The first floor outlet 14 and the second floor outlet 16 are parts where air introduced through the air inlet is discharged, and the discharged air may be discharged through the floor of the rear seat of the vehicle. The first floor discharge port 14 and the second floor discharge port 16 may discharge to the left floor or the right floor, respectively. In this embodiment, for convenience, the first floor discharge port 14 is discharged to the left floor, and the second floor discharge port 16 ) will be explained as being discharged to the right floor.

As a heat exchanger in a vehicle air conditioning unit, an evaporator 30 is placed on the air passage to cool the air and convert it into cold air. At this time, the evaporator 30 may be installed to face the direction of air movement. In addition, both ends of the evaporator 30 may be supported by the inner wall of the case 10. In the above, the evaporator 30 is presented as an example of a heat exchanger, but it is not limited thereto, and various heat exchangers for cooling, heating, and cooling can be disposed.

The heater core 40 is disposed on the downstream side of the air flow path of the evaporator 30 to heat the air and convert it into warm air. The heater core 40, like the evaporator 30, may be installed to face the direction of movement of air inside the case 10. In addition, both ends of the heater core 40 may be supported by the inner wall of the case 10. The heater core 40 may be arranged at an angle with respect to the direction of movement of air.

Meanwhile, a bypass partition 42 may be installed in front of the air passing through the heater core 40. The bypass partition 42 serves to bypass the air that has passed through the heater core 40 rather than being discharged directly to the first floor outlet 14 and the second floor outlet 16. The bypass partition 42 separates the flow path between the left and right floors and the evaporator 30.

The bypass partition 42 extends upward from the front of the heater core 40, and its upper portion may be bent backward to extend. Due to the upper part of the bypass partition 42 formed in this way, air can be discharged toward the first floor outlet 14 and the second floor outlet 16 by bypassing upward through the bypass passage 44.

The main temperature control door 50 is installed between the evaporator 30 and the heater core 40 and serves to control the temperature of the discharged air. The main temperature control door 50 rotates around the rotating shaft 52 to selectively open and close the flow path between the evaporator 30 and the heater core 40. Accordingly, as the air passes through or bypasses the heater core 40 by the main temperature control door 50, the temperature of the discharged air is controlled.

To be more specific, when the main temperature control door 50 is rotated to the position shown in a solid line as in Figure 1 and opens to allow air to pass through the heater core 40, it is in heating mode, and the main temperature control door When (50) is rotated to the position shown in a dotted line to block the air flow toward the heater core (40), it is in cooling mode. When the main temperature control door 50 is located between the solid line position and the dotted line position, it can be operated in mixing mode.

The mode door 60 is installed between the vent outlet 12 and the floor outlets 14 and 16 and serves to implement the blowing mode operation. The mode door 60 rotates around the rotation axis 62 to selectively open and close the flow path between the vent outlet 12 and the floor outlets 14 and 16. Here, the flow path to the floor discharge ports 14 and 16 corresponds to the bypass flow path 44.

More specifically, the mode door 60 is rotated to the position shown in a solid line as in FIG. 1 to close the vent outlet 12, or is rotated to the position shown in a dotted line to close the floor outlets 14 and 16. ) can be closed or positioned between the solid line position and the dotted line position to allow air to flow to the vent outlet 12 and the floor outlets 14 and 16.

The auxiliary temperature control door 70 is adjusted to minimize the temperature difference of the air discharged from each vent outlet 14 and 16. The auxiliary temperature control door 70 rotates around the rotation axis 72 and is installed in front of the heater core 40, that is, directly downstream of the heater core 40, and is connected to the first floor discharge port 14 or the second floor. The flow path toward the discharge port (16) is selectively opened and closed.

Referring to FIG. 3, a first floor duct 120 through which air discharged to the left floor flows and a second floor duct 130 through which air discharged to the right floor flows is installed on the rear seat floor 110 of the vehicle. do. In this drawing, since the case 10 is installed on the side panel 100 disposed on the right, the length of the first floor duct 120 extending to the left floor is the length of the second floor duct 130 extending to the right floor. It can be formed longer. That is, the case 10 may be placed relatively close to either the first floor duct 120 or the second floor duct 130, and the auxiliary temperature control door 70 may be placed relatively far away from the floor duct ( 120,130) and can be placed on a flow path connected to the channel.

In this way, since the extension lengths of the first floor duct 120 and the second floor duct 130 are different from each other, a temperature difference between the two sides may increase during the air flow process. That is, the temperature of the air may drop further while flowing through the relatively long first floor duct 120. In this case, when air is actually discharged, a problem may arise where the occupants' satisfaction with the air conditioning decreases. Therefore, in this embodiment, the auxiliary temperature control door 70 is installed to control the direct air flow to the floor outlets 14 and 16 to minimize the temperature difference on both sides.

Referring again to FIGS. 1 and 2, the auxiliary temperature control door 70 may be installed to open and close an open portion of the bypass partition 42 disposed in front of the heater core 40. The auxiliary temperature control door 70 may be rotated by driving the actuator 74 disposed on one side of the case 10. When the actuator 74 is driven, the rotation shaft 72 rotates in one direction and the auxiliary temperature control door 70 may rotate in conjunction with this. That is, the rotation angle of the auxiliary temperature control door 70 can be adjusted according to the temperature difference between the air discharged to the left floor and the right floor.

In this embodiment, the auxiliary temperature control door 70 is installed on the side of the first floor outlet 14 connected to the relatively long first floor duct 120 to provide a direct flow path of air to the first floor outlet 14. Opens and closes selectively.

To be more specific, in a general air conditioning mode, the auxiliary temperature control door 70 remains closed. At this time, under certain conditions, for example, when the maximum heating mode is set, the temperature difference between the air finally discharged to the left floor and the right floor may increase by more than 5 degrees. Then, the auxiliary temperature control door 70 is opened and the air passing through the heater core 40 passes directly forward and is discharged to the first floor outlet 14, so the temperature is relatively higher than that of the second floor outlet 16. It can be discharged as As a result, the temperature difference between the air finally discharged to the left floor and the right floor can be maintained to be approximately the same or less than 5 degrees.

Meanwhile, a separating partition wall 80 may be installed between the first floor outlet 14 and the second floor outlet 16, and the auxiliary temperature control door 70 can be opened and closed on one side of the separating partition wall 80. can be installed. The separation partition 80 may be installed between the outer surface of the bypass partition 42 and the inner wall of the case 10, and the separation partition 80 may be formed only in the open section of the auxiliary temperature control door 70.

The separation partition wall 80 allows the air that has passed through the heater core 40 to flow directly only toward the first floor outlet 14, and to flow through the bypass passage 44 toward the second floor outlet 16. That is, the air passing through the heater core 40 generally flows through the bypass passage 44, and under certain conditions, the auxiliary temperature control door 70 is opened and the bypass passage 44 flows only toward the first floor discharge port 14. ), and air can be discharged directly from the second floor discharge port (16) through the bypass passage (44).

Figure 4 is a diagram showing the flow of air in a rear air conditioning unit for a vehicle according to an embodiment of the present invention.

Referring to this, in a general air conditioning mode, the auxiliary temperature control door 70 remains closed. At this time, in the heating mode, the main temperature control door 50 is rotated to the solid line position to close the flow path between the evaporator 30 and the heater core 40, and in the cooling mode, the main temperature control door 50 is rotated to the solid line position. In the cooling mode, the main temperature control door 50 is rotated to the solid line position. It is rotated to the current position to close the passage to the heater core 40. Additionally, the mode door 60 can be rotated by the occupant's manipulation and operated in various blowing modes.

With the auxiliary temperature control door (70) closed, the air that has passed through the evaporator (30) and heater core (40) bypasses upward along the bypass passage (44) and then flows through the first floor outlet (14) and the second floor. It can be discharged through the discharge port (16).

However, under certain conditions, for example, when operating in the maximum heating mode, the temperature difference between the air discharged to the left floor and the right floor may increase by more than 5 degrees. At this time, the auxiliary temperature control door 70 is opened, and some of the air that has passed through the heater core 40 may pass through the auxiliary temperature control door 70 and be discharged directly to the first floor outlet 14 (solid line). . The air discharged through the first floor discharge port 14 flows through the first floor duct 120 and is discharged to the left floor side.

Then, since the temperature of the air (solid line) that passed directly through the auxiliary temperature control door 70 is relatively higher than the temperature of the air (dotted line) that passed through the bypass passage 44, the temperature difference between the air finally discharged to the left floor and the right floor can be minimized. Here, the auxiliary temperature control door 70 may be driven under specific conditions in which a large temperature difference occurs, or may be driven when the temperature difference discharged to the left floor and the right floor increases beyond a certain temperature.

Ultimately, if the temperature difference discharged to the left and right floors is minimized, passengers will not feel any deviation in air conditioning and their satisfaction can be increased.

Although the present invention has been described above with reference to specific embodiments, those skilled in the art will understand the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be modified and changed.

10: Case 12: Vent outlet
14: first floor outlet 16: second floor outlet
20: blower unit 30: evaporator
40: heater core 42: bypass bulkhead
44: Bypass passage 50: Main temperature control door
52: rotation axis 60: mode door
62: Rotating axis 70: Auxiliary temperature control door
72: rotation axis 74: actuator
80: Separating bulkhead

Claims (16)

In the rear air conditioning unit for a vehicle, which is installed on the side panel of the rear seat of the vehicle and discharges air to the left and right floors,
A case in which a first floor discharge port and a second floor discharge port are formed;
a blower unit that sucks air into the case and blows it; and
It includes a heat exchanger that exchanges heat with air sucked into the case,
A bypass partition is formed between the left and right floors and the heat exchanger to separate the flow path,
A rear air conditioning unit for a vehicle in which an auxiliary temperature control door is installed on the bypass bulkhead to allow air that has passed through the heat exchanger to flow directly into the left floor or the right floor. According to paragraph 1,
The case is a rear air conditioning unit for a vehicle arranged relatively close to one of the floor ducts that discharge air to the left floor and the right floor. According to paragraph 2,
The auxiliary temperature control door is a rear air conditioning unit for a vehicle, wherein the auxiliary temperature control door is disposed on a flow path connected to the floor duct located relatively far from the case. According to paragraph 1,
The bypass bulkhead is a rear air conditioning unit for a vehicle installed on the downstream side of the heater core. According to paragraph 4,
The bypass partition wall extends upward from the front of the heater core, and the upper part is bent and extended rearward. According to paragraph 4,
A rear air conditioning unit for a vehicle in which a bypass passage for air to bypass is formed on the downstream side of the heater core in the case. According to paragraph 1,
A rear air conditioning unit for a vehicle, wherein a separating partition is installed between the flow path discharged to the first floor outlet and the second floor outlet. In clause 7,
A rear air conditioning unit for a vehicle in which the separating partition is formed only in an open section of the auxiliary temperature control door. In clause 7,
The auxiliary temperature control door is a rear air conditioning unit for a vehicle that is installed to be openable and closed on the bypass bulkhead. According to paragraph 1,
A rear air conditioning unit for a vehicle in which a main temperature control door for controlling the temperature of air is installed in the case between the heat exchanger and the heater core. According to paragraph 1,
The auxiliary temperature control door is a rear air conditioning unit for a vehicle that opens when the temperature difference between the air discharged to the left and right floors is more than 5 degrees. According to paragraph 1,
The heat exchanger is a rear air conditioning unit for a vehicle that is a heat exchanger for cooling, heating, or cooling and heating. A case installed on the side panel of the rear seat of the vehicle and forming a first floor discharge port and a second floor discharge port;
a blower unit that sucks air into the case and blows it;
a heat exchanger that exchanges heat with air sucked into the case;
a first floor duct connected to the first floor discharge port to discharge air to the left floor; and
It includes a second floor duct connected to the second floor discharge port to discharge air to the right floor,
A bypass partition wall is formed between the left and right floors and the heat exchanger to separate the flow path,
A rear air conditioning device for a vehicle in which an auxiliary temperature control door is installed on the bypass partition wall to allow air that has passed through the heat exchanger to flow directly into the left floor or the right floor. According to clause 13,
A rear air conditioning device for a vehicle wherein the first floor duct and the second floor duct have different extension lengths. According to clause 13,
The case is a rear air conditioning device for a vehicle arranged relatively close to one of the first floor duct and the second floor duct. According to clause 15,
The auxiliary temperature control door is a rear air conditioning device for a vehicle, wherein the auxiliary temperature control door is disposed on a flow path connected to the first floor duct or the second floor duct located relatively far from the case.

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