KR102238277B1 - Air conditioner for vehicle - Google Patents

Abstract

Disclosed is an air conditioning apparatus for a vehicle having an improved assembly structure capable of improving the assembling property of the door by adding a separate hook to the door and preventing separation in the axial direction during assembly. The vehicle air conditioner includes an air-conditioning case with an air passage formed therein and an air outlet for discharging air, at least one heat exchanger provided in the air-conditioning case for exchanging heat with air, and an air passage and an air outlet of the air-conditioning case. And a door for adjusting at least one opening degree, the door comprising: a first door plate and a second door plate provided to be slidably movable; A drive gear coupled to the first door plate so as to be rotatably installed in the air conditioning case; A link connecting the second door plate and the driving gear; And a hook provided to prevent separation of the link and the drive gear.

Description

Vehicle air conditioning system {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner for a vehicle with improved assembly properties of a door.

A vehicle air conditioner is an interior of a vehicle that is installed for the purpose of ensuring the driver's front and rear view by cooling and heating the interior of the vehicle in summer or winter, or removing frost that may be caught in the windshield during rain or winter. The air conditioner is usually equipped with a heating device and a cooling device at the same time, and after selectively introducing outside or inside air, the air is heated or cooled to blow it into the interior of the vehicle to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit, and the heater core unit, the vehicle air conditioner is a three-piece type in which the three units are independently provided, and the evaporator unit and the heater core unit are built into the air conditioning case, and the blower unit is It can be roughly divided into a semi-center type provided as a separate unit and a center mounting type in which all the three units are built into the air conditioning case.

In this way, the vehicle air conditioner is provided in the form of an air conditioner case. In the air conditioning case, an air inlet and an air outlet are provided on the outside, and at least one air passage is provided on the inside. Air introduced into the air conditioning case through the air inlet passes through the evaporator and the heater core along the air passage, and is discharged to the outside of the air conditioning case through the air outlet.

Doors are provided in the air passage and the air outlet to adjust the opening degree. Through the door, the air flow inside the air conditioning case can be controlled and harmonized air can be provided in a desired position and direction.

In general, the air conditioning case is composed of a left case and a right case assembled with each other. Accordingly, an air conditioner for a vehicle is assembled by mounting an internal component such as a door in one of the left case and the right case, and then combining the other of the left case and the right case.

In this case, the left case (or the right case) is laid on the assembly table, one side of the door is seated on the case, and then the right case (or the left case) is coupled. However, due to the characteristic of the door provided with various components, separation between components occurred, and accordingly, there was inconvenience in the assembly process. In particular, in the case of a door composed of two door plates, since a link connecting them is additionally required, greater inconvenience occurs when assembling the door.

In order to solve such a conventional problem, in the present invention, in the present invention, a separate hook is added to the door to improve the assembling property of the door, and the vehicle air conditioner having an improved assembly structure capable of preventing axial separation during assembly. Provides.

The air conditioning apparatus for a vehicle according to the present invention includes an air conditioning case having an air passage formed therein and an air outlet for discharging air, at least one heat exchanger provided in the air conditioning case for exchanging heat with air, and an air passage of the air conditioning case. And a door for adjusting an opening degree of at least one of the air outlet and the door, the door comprising: a first door plate and a second door plate provided to be slidably movable; A drive gear coupled to the first door plate so as to be rotatably installed in the air conditioning case; A link connecting the second door plate and the driving gear; And a hook provided to prevent separation of the link and the drive gear.

In the vehicle air conditioner according to the present invention, a hook is provided on the door to stably couple the door gear and the link to improve the assembling property of the door. In addition, by preventing the separation between the components of the door, it is possible to prevent malfunction of the door and damage to the driving unit. In addition, by adding a stopper, it is possible to effectively prevent deviation in the axial direction between the link and the door gear.

1 shows a maximum heating mode of an air conditioning apparatus for a vehicle according to a first embodiment of the present invention,
2 shows the maximum cooling mode of the vehicle air conditioner according to the first embodiment of the present invention,
3 is a perspective view showing a door of an air conditioning apparatus for a vehicle according to a first embodiment of the present invention,
4 to 7 show an assembly process of the vehicle air conditioner according to the first embodiment of the present invention,
8 is a perspective view showing a door of an air conditioning apparatus for a vehicle according to a second embodiment of the present invention,
9 is a partially enlarged view of FIG. 8.

Hereinafter, the technical configuration of the vehicle air conditioner will be described in detail according to the accompanying drawings.

1 is a diagram illustrating a maximum heating mode of a vehicle air conditioning apparatus according to a first embodiment of the present invention, and FIG. 2 is a diagram illustrating a maximum cooling mode of a vehicle air conditioning apparatus according to a first embodiment of the present invention.

1 and 2, an air conditioning apparatus for a vehicle includes an air conditioning case 10 in which an air inlet and an air outlet 30 are formed. That is, the air conditioning case 10 is provided in a form in which an air inlet is formed on one side and an air outlet 30 through which the introduced air is discharged is formed on the other side.

The air conditioning case 10 may be provided in a form formed by assembling the left case 12 and the right case 11 divided from each other. At least one air inlet and air outlet 30 may be provided. A blowing device 20 is installed at the air inlet.

The blower 20 may include an internal air inlet and an external air inlet that are opened and closed by an internal/external air conversion door so that internal or external air can be selectively introduced. In addition, the blowing device 20 includes a blowing fan provided to blow air introduced through the air inlet and the outside air inlet to the air conditioning case 10 side.

In general, a plurality of air discharge ports 30 are provided and connected to a duct communicating with a specific part of the vehicle interior. Accordingly, the air cooled and heated can be discharged to a specific part of the vehicle interior. For example, it may be discharged to a windshield of a vehicle, a face side, a foot side of a front occupant, a face side, and a foot side of a rear occupant.

1 and 2, the air discharge port 30 is provided with a first discharge port 31 and a second discharge port 32.

In the air conditioning case 10, two heat exchangers, that is, a cooling heat exchanger and a heating heat exchanger are disposed. The cooling heat exchanger may be provided with an evaporator 40 installed on the refrigerant circulation line. According to the circulation of the refrigerant, the evaporator 40 cools the air by exchanging heat with the passing air. The heating heat exchanger may be provided with a heater core 50.

The evaporator 40 and the heater core 50 are disposed to be spaced apart in the air conditioning case 10. As shown in FIGS. 1 and 2, the evaporator 40 is disposed adjacent to the blower 20 so that the air introduced through the blower 20 provided at the air inlet passes through the evaporator 40. In order to heat the air that has passed through the evaporator 40, the heater core 50 is disposed above and below the flow of the air in the evaporator 40.

In addition, an air passage provided to control the flow of air is formed inside the air conditioning case 10. By controlling the flow of air flowing inside the air conditioning case 10 through the air passage, it is possible to obtain required conditioned air by selectively passing through the heater core 50.

The air passage includes a first passage P1 and a third passage P3 provided to bypass the heater core 50 and a second passage P2 provided to pass through the heater core 50.

In addition, the vehicle air conditioner includes doors 60 and 70 installed to adjust the opening degree of at least one of the air passage and the air discharge port 30.

Hereinafter, a door provided to adjust the opening degree of the air discharge port 30 is referred to as a first door 60, and a door provided to adjust the opening degree of the air conditioning passage is referred to as a second door 70.

The first door 60 is installed to be movable in the air outlet 30. The first door 60 is provided to be slidably movable including the driving gear 62 and the door plate 64.

1 and 2, the drive gear 62 is disposed between the first discharge port 31 and the second discharge port 32, so that the door plate 64 is provided with the first discharge port 31 and the second discharge port. Operate to open and close at least a part of (32).

As described above, the first discharge port 31 and the second discharge port 32 are connected to different parts of the vehicle interior. Accordingly, conditioned air can be supplied to a desired location according to the movement of the door plate 64.

The second door 70 is installed inside the air conditioning case and controls the air temperature by controlling a flow path passing through or bypassing the heater core 50. Accordingly, the second door 70 is also referred to as a temperature control door, and the amount of air that has passed through the evaporator 40 through the heater core 50 or bypassed according to its arrangement can be determined.

1 and 2, the second door 70 is disposed between the evaporator 40 and the heater core 50. The structure of the second door 70 will be described in detail below.

In FIG. 1, the second door 70 blocks the first flow path P1 and the third flow path P3 bypassing the heater core 50 so that all air passes through the heater core 50. It is arranged to flow to P2). In addition, in FIG. 2, the second door P2 blocks the second flow path P2 passing through the heater core 50 so that all of the air bypasses the first flow path P1 and the third flow path P1. It is arranged to flow in the flow path P3.

In addition, the second door 70 may be disposed to open and close a part of the first flow path P1 to the third flow path P3 to discharge air of a desired temperature.

The vehicle air conditioning apparatus shown in FIGS. 1 and 2 is only an example, and the number and arrangement of internal components thereof may be provided differently.

3 is a perspective view showing a door of an air conditioning apparatus for a vehicle according to the first embodiment of the present invention. Hereinafter, the second door is referred to as a door.

The door 70 includes at least one door plate 71 and 72 and a driving gear 73. A plurality of door plates 71 and 72 may be provided as needed, and FIG. 3 illustrates a door 70 having two door plates 71 and 72. These are referred to as a first door plate 71 and a second door plate 72, respectively.

The first door plate 71 and the second door plate 72 are provided to be slidable. In detail, the first door plate 71 slides through the second flow path P2 and the third flow path P3, and the second door plate 72 includes the first flow path P1 and the second flow path P2. To go sliding. That is, the first door plate 71 opens and closes a part of the second flow path P2 and the third flow path P3, and the second door plate 72 opens and closes the first flow path P1 and the second flow path P2. To open and close part of it.

The driving gear 73 is coupled to a driving source such as a motor and is rotatably installed in the air conditioning case 10. The driving gear 73 is gear-coupled with the first door plate 71 to move the first door plate 71.

In addition, the driving gear 73 is coupled through the second door plate 72 and the link 74 to move the second door plate 72. One side of the link 74 is fixed to the second door plate 72 and the other side is in contact with the driving gear 73 so as to be movable. Accordingly, the link 74 moves together with the second door plate 72 as the drive gear 73 rotates.

The drive gear 73 includes a contact portion 75 in contact with the first door plate 71 and the link 74, and a seating portion 76 that extends from the contact portion 75 and is rotatably coupled to the air conditioning case 10. It is composed. In general, the contact portion 75 and the seating portion 76 are provided as a pair of spaced apart, respectively, and they are connected by a connection portion 77.

The connection part 77 may be provided in the form of a shaft in which the contact part 75 and the seating part 76 are provided at both ends. The contact portion 75 is provided in the form of at least one toothed gear so that the first door plate 71 and the link 74 may be gear-coupled to different toothed gears. The seating portion 76 is provided in the form of a protruding protrusion so as to be rotatably coupled to the air conditioning case 10.

The drive gear 73 is driven by the first door plate 71 and the link 74 geared to different toothed gears to drive the first door plate 71 and the second door plate 72 in different directions. I can. Accordingly, the door is movable as shown in FIGS. 1 and 2.

In addition, the door 70 includes a hook 78 provided to prevent the link 74 and the drive gear 73 from being separated.

The hook 78 is coupled to one side of the link 74 and is provided so that one side of the driving gear 73 is seated. In detail, the hook 78 may be provided so that at least a part of the seating portion 76 is seated.

One side of the hook 78 is open and is provided in a shape surrounding the seating portion 76. As shown in FIG. 3, the hook 78 may be provided in a'U' shape so that the seating portion 76 is seated. The hook 78 may be provided in various shapes with one side open.

The link 74 and the hook 78 may be integrally injection molded. In addition, each can be manufactured and bonded.

Based on the description of the configuration of the door 70, the movement of the door 70 shown in FIGS. 1 and 2 will be described.

2, when the first door plate 71 and the second door plate 72 are in contact, the air that has passed through the evaporator 40 bypasses the heater core 50 and is discharged to the air outlet 30. I can. This is because the first door plate 71 and the second door plate 72 contact each other to completely block the second flow path P2.

When one side of the driving gear 73 is in contact with the hook 78, the air that has passed through the evaporator 40 may pass through the heater core 50 and be discharged to the air outlet 30. The hook 78 is provided at one end of the link 74 as shown in FIG. 3 and is disposed to surround the seating portion 76 of the driving gear 73.

In this state, the first door plate 71 and the second door plate 72 are maximally separated, and the first door plate 71 and the second door plate 72 are separated from the first flow path P1 and the third door plate. Each of the flow paths P3 is blocked. Accordingly, as shown in FIG. 1, air does not flow through the first flow path P1 and the third flow path P3, but both flow to the second flow path.

4 to 7 are views showing an assembly process of the vehicle air conditioner according to an embodiment of the present invention. This is only an example of an assembly process, and the vehicle air conditioner according to the present invention can be assembled in various ways. In addition, in FIGS. 4 to 7, only the assembly of the door except for the assembly of other configurations will be described.

As described above, the air conditioning case 10 is provided in a form formed by assembling the left case 12 and the right case 11 divided from each other.

4, the right case 11 is laid on the assembly table. For stability of assembly, the outer surface of the right case 11 may be provided flat. A shape for installation of various components may be provided on the inner side of the right case 11.

As shown in FIG. 5, the first door 60 is mounted on the right case 11. As described above, the first door 60 is provided with a door plate 64 and a driving gear 62.

As shown in FIG. 6, the door (second door, 70) is mounted on the right case 11. In this case, the order of installation of the first door 60 and the second door 70 is irrelevant.

Finally, as shown in FIG. 7, the left case 12 is coupled to the right case 11. The inner surface of the left case 12 is provided in a shape that is coupled to correspond to the inner surface of the right case 11.

At this time, one side of the door 70 is coupled to the left case 11 and is mounted perpendicularly to the bottom surface. In particular, since the door 70 is provided with various components such as the first door plate 71, the second door plate 72, the driving gear 73, and the link 74, there is a possibility of separation.

In addition, since each of these components and the air conditioning case 10 must be rotatably coupled, it is difficult to fix each other.

In particular, there is a high possibility of separating the link 74 and the drive gear 73, but it is possible to prevent separation from each other by using the hook 78. This is because the hook 78 is fixed to the link 74 and is caught on the seat 76 of the drive gear 73 at the same time.

In addition, the hook 78 may be provided on only one side of the link 74 to provide directionality. Therefore, it is possible to prevent mis-assembly between parts during assembly and reduce assembly time.

Meanwhile, FIG. 8 is a perspective view showing a door of an air conditioning apparatus for a vehicle according to a second embodiment of the present invention, and FIG. 9 is a partially enlarged view of FIG. 8. Hereinafter, a detailed description of the same configuration as the above-described embodiment will be omitted.

8 and 9, the door 70 further includes a stopper 90 in the same configuration as in the first embodiment. The stopper 90 prevents axial separation between the drive gear 73 and the link 74. The stopper 90 restrains the link 74 from the drive gear 73 in the axial direction. That is, the stopper 90 restrains the link 74 from the drive gear 73 in the direction of gravity.

The stopper 90 is formed extending from the drive gear 73 toward the hook 78 in a radial direction, and disposed outside the hook 78 in the axial direction. In this case, that the stopper 90 is disposed outside the hook 78 in the axial direction means that the stopper 90 is mounted on the right case 11 while the door 70 is seated on the right case 11 when assembling the air conditioner. ) Means to be located above.

The stopper 90 is provided on the drive gear 73, and more particularly, is formed on the seating portion 76 of the drive gear 73. The stopper 90 is formed radially extending along the circumferential direction of the seating portion 76 toward a closing portion including a side opposite the opening of the hook 78. The stopper 90 may be injection-molded integrally with the seating portion 76, that is, the driving gear 73.

That is, the stopper 90 is composed of a first stopper 91 extending to the side opposite to the opening of the seating portion 76, and a second stopper 92 spaced apart from the first stopper 91 at 90° intervals in the circumferential direction. do. In this case, the second stopper 92 is formed to extend to the opposite side of the first door plate 71.

Through this configuration, the axial separation between the link 74 and the drive gear 73 is prevented, and the link 74 is separated from the drive gear 73 in the axial direction (gravity direction) when assembling the air conditioner. It can be effectively prevented through a minimum stopper configuration.

In addition, the first stopper 91 and the second stopper 92 are formed in a direction perpendicular to each other to perform stable support with a minimum number (two). The number of stoppers can achieve its purpose even with one stopper, but it is possible to perform a support function in the axial direction by distributing the load while the door is seated in the air conditioning case. In addition, through the configuration in which the second stopper 92 extends to the opposite side of the first door plate 71, it is possible to prevent interference between gear rotation between the driving gear 73 and the first door plate 71.

Until now, the vehicle air conditioning apparatus according to the present invention has been described with reference to the embodiment shown in the drawings, but this is only exemplary, and anyone of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection should be determined by the technical spirit of the appended claims.

10: air conditioning case 20: blower
30: air outlet 40: evaporator
50: heater core 60: first door
70: door (second door) 71: first door plate
72: second door plate 73: drive gear
74: link 76: seat
78: hook 90: stopper
91: first stopper 92: second stopper

Claims (16)

An air-conditioning case 10 with an air passage formed therein and an air outlet 30 for discharging air, at least one heat exchanger provided in the air-conditioning case 10 to exchange heat with air, and the air-conditioning case 10 ) Comprising a door for adjusting the opening degree of at least one of the air passage and the air outlet 30,
The door includes: a first door plate 71 and a second door plate 72 provided to be slidable; A drive gear 73 that is gear-coupled with the first door plate 71 to be rotatably installed in the air conditioning case 10; A link 74 connecting the second door plate 72 and the drive gear 73; And a hook 78 provided to prevent separation of the link 74 and the drive gear 73,
It includes a stopper 90 for preventing axial separation between the drive gear 73 and the link 74,
The stopper 90 is formed extending in a radial direction from the driving gear 73 toward the hook 78 and disposed outside the hook 78 in the axial direction. The method of claim 1,
The hook 78 is coupled to one side of the link 74 and provided so that one side of the driving gear 73 is seated. The method of claim 2,
The driving gear 73 is a contact portion 75 in contact with the first door plate 71 and the link 74, and a seat extending from the contact portion 75 and rotatably coupled to the air conditioning case 10 It consists of part 76,
The hook 78 is a vehicle air conditioner provided so that at least a part of the seating portion 76 is seated. The method of claim 3,
The hook 78 is an air conditioner for a vehicle in which one side is open and is provided to surround the seating portion 76. The method of claim 3,
The hook 78 is an air conditioner for a vehicle provided in a'C' shape so that the seating portion 76 is seated. The method of claim 1,
The link (74) and the hook (78) are integrally injection-molded vehicle air conditioner. The method of claim 1,
The heat exchanger includes an evaporator 40 and a heater core 50,
The door (70) is disposed between the evaporator (40) and the heater core (50) to adjust the opening degree of the air passage provided in the air conditioning case (10). The method of claim 7,
The driving gear 73 drives the first door plate 71 and the second door plate 72 in different directions. The method of claim 7,
When the first door plate 71 and the second door plate 72 are in contact, the air that has passed through the evaporator 40 bypasses the heater core 50 and is discharged to the air outlet 30. Vehicle air conditioning system. The method of claim 7,
When one side of the driving gear 73 contacts the hook 78, the air that has passed through the evaporator 40 passes through the heater core 50 and is discharged to the air outlet 30. . delete The method of claim 1,
The stopper (90) is a vehicle air conditioner for restraining the link (74) from the drive gear (73) in the axial direction. delete The method of claim 1,
The driving gear 73 is a contact portion 75 in contact with the first door plate 71 and the link 74, and a seat extending from the contact portion 75 and rotatably coupled to the air conditioning case 10 It consists of part 76,
The stopper 90 is a vehicle air conditioner formed on the seating portion 76. The method of claim 14,
The hook 78 has one side open and has a shape provided to surround the seating portion 76,
The stopper (90) is formed to extend radially along the circumferential direction of the seating portion (76) toward a closed portion including a side opposite the opening of the hook (78). The method of claim 15,
The stopper 90 is composed of a first stopper 91 extending to a side opposite to the opening of the seating portion 76, and a second stopper 92 spaced apart from the first stopper 91 at 90° intervals in the circumferential direction. And, the second stopper 92 is formed to extend to the opposite side of the first door plate 71 for a vehicle air conditioner.

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