KR102019675B1 - Air conditioner for vehicle - Google Patents

Abstract

The present invention provides an air-conditioning case having an air inlet and a plurality of air outlets, an evaporator provided inside the air-conditioning case, a heater core provided at the rear of the evaporator, and provided between the evaporator and the heater core to bypass the heater core. And a mix door portion for adjusting the opening degree of the heating flow passage passing through the cooling flow passage and the heater core, wherein the mix door portion slides between the evaporator and the heater core to adjust the opening degree of the cooling flow passage and the heating flow passage, and the sliding door. A vehicle air conditioner is provided on one side of the door and rotated by the drive unit, and the sliding door and the rotating shaft portion to be engaged with each other, the vehicle air conditioner comprising a moving means for sliding the sliding door in accordance with the rotation of the rotating shaft portion to provide.
Therefore, the size of the air conditioning case can be reduced and the compact structure can be realized by configuring the mix door as a sliding door type structure rather than a hinge structure requiring a certain radius of rotation.

Description

Air conditioner for vehicle {Air conditioner for vehicle}

The present invention relates to a vehicle air conditioner, and more particularly to a vehicle air conditioner that can reduce the size of the air conditioner.

In general, a vehicle air conditioner is a device for heating or cooling the air introduced from the outside and blowing it to the interior of the vehicle to heat or cool the interior of the vehicle. A blower for introducing outside air or bet is provided in the air conditioning case. And an evaporator for cooling the sucked air, and a heater core for heating the sucked air. Here, the air conditioning case has a face vent, a defrost vent, and a floor vent for supplying cold or warm air to each place of use, and each of the vents has a door for adjusting the opening degree by allowing a pivoting movement in the air conditioning case. It is provided.

On the other hand, an example of a door provided in the vehicle air conditioner has been disclosed a mix door of the vehicle air conditioner of the Republic of Korea Patent Publication No. 2010-0010380. Referring to Figure 1, the mixing door 40 of the vehicle air conditioner is mounted to the air conditioning case 10 to adjust the air sent to the cold air passage and the warm passage between the evaporator 20 and the heater core 30 , One end is rotatably coupled to the heater core 30 side as the rotation center, the other end is pivoting to adjust the opening degree.

However, the above-described conventional vehicle air conditioner 50 may interfere with or collide with each other when the mix door 40 and the evaporator 20 rotate when the mix door 40 is rotated. ) To be spaced apart from the evaporator 20 by a predetermined interval to ensure the space as much as the radius of the rotation of the mix door 40, there was a problem that the size of the air conditioner (50) also has to be large.

An object of the present invention is to provide a vehicle air conditioner that can reduce the size of the air conditioner.

The present invention provides an air-conditioning case having an air inlet and a plurality of air outlets, an evaporator provided inside the air-conditioning case, a heater core provided behind the evaporator, and provided between the evaporator and the heater core. And a mixing door unit configured to adjust an opening degree of a cooling passage bypassing the heater core and a heating passage passing through the heater core, wherein the mixing door unit slides between the evaporator and the heater core to move the cooling passage and the heating core. A sliding door for adjusting the opening degree of the flow path, and a rotating shaft portion provided on one side of the sliding door and rotated by a driving unit, respectively provided to the sliding door and the rotating shaft portion to be engaged with each other, the sliding according to the rotation of the rotating shaft portion For a vehicle comprising a moving means for sliding the door It provides the group conditioner.

In addition, the present invention may further include a support part provided to be in contact with the other side surface of the sliding door to prevent slip due to lifting during sliding movement of the sliding door.

Here, the sliding door may be bent in an arc shape.

In addition, the moving means, the sliding door and the rotating shaft portion formed in each of the moving projections and engaging with each other, it may be a moving groove, wherein the moving projection and the moving groove are each zigzag in the moving direction of the sliding door It is preferably formed to extend. On the other hand, the moving projection and the moving groove each preferably has a zigzag inclination angle of more than 0 ° and less than 65 °, each of the moving projection and the moving groove may be a semi-circular or polygonal shape of the longitudinal section.

The vehicle air conditioner according to the present invention provides the following effects.

First, it is possible to reduce the size of the air conditioner by configuring the mix door in a sliding door type structure rather than a hinge structure requiring a certain rotation radius, thereby realizing a compact structure.

Second, it is possible to reduce the overall size and to reduce the manufacturing cost to obtain an economic effect, as well as to improve the space efficiency.

1 is a cross-sectional view showing the internal structure of a conventional vehicle air conditioner.
2 is a cross-sectional view showing the internal structure of a vehicle air conditioner according to an embodiment of the present invention.
3 and 4 are cross-sectional views illustrating a cool mode and a hot mode according to the sliding movement of the mix door unit of FIG. 2.
FIG. 5 is a perspective view illustrating the mix door unit of FIG. 2. FIG.
6 is a cross-sectional view illustrating a longitudinal cross-sectional shape of the moving protrusion of FIG. 5.
7 is a cross-sectional view illustrating another embodiment of the moving protrusion of FIG. 5.

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

2 is a cross-sectional view showing the internal structure of a vehicle air conditioner according to an embodiment of the present invention, Figures 3 and 4 are cross-sectional views showing a cool mode and a hot mode according to the sliding movement of the mix door of FIG. 5 is a perspective view illustrating the mix door part of FIG. 2, FIG. 6 is a cross-sectional view illustrating a longitudinal cross-sectional shape of the moving protrusion of FIG. 5, and FIG. 7 is a cross-sectional view showing another embodiment of the moving protrusion of FIG. 5.

First, referring to FIG. 2, the vehicle air conditioner 600 according to the embodiment of the present invention includes an air conditioner case 100, an evaporator 200 provided inside the air conditioner case 100, and the evaporator ( The heater core 300 and the mix door unit 400 provided at the rear of the 200 are included. Here, a detailed description of the air conditioning case 100, the evaporator 200 and the heater core 300 is similar to the configuration of a known vehicle air conditioner, so the detailed description will be omitted, and the following will mainly focus on the configuration Let's look at it.

The mix door part 400 is provided between the evaporator 200 and the heater core 300 to provide a cooling passage A (see FIG. 3) and the heater core 300 that bypass the heater core 300. It serves to adjust the opening degree of the heating passage B (see Fig. 4) passing through, and has a sliding door structure.

Looking at the mix door unit 400 in detail, the mix door unit 400 includes a sliding door 410, a rotating shaft portion 420, and a moving means 430.

The sliding door 410 is disposed between the evaporator 200 and the heater core 300 and slides to adjust the opening degree of the cooling passage A and the heating passage B.

In this regard, the sliding door 410 may supply air of cold air, warm air and intermediate temperature to each required location of the vehicle according to the sliding movement. That is, the sliding door 410 is slid to the left as shown in FIG. 3 to close the heating passage B and open the cooling passage A so that only cold air is supplied. On the other hand, referring to FIG. 4, the sliding door 410 may slide to the right to close the cooling passage A and open the heating passage B so that only warmth is supplied.

The sliding door 410 has an arc shape that is gently concave in the direction in which air is introduced, that is, in the direction in which the rotation shaft portion 420 is located, so as to improve the ground area and controllability with the rotation shaft portion 420. Accordingly, the sliding door 410 has the effect of widening the mixing control range of cold and warm as the movement distance for sliding movement in both directions increases. However, this is in one embodiment the sliding door 410 is applicable to a variety of shapes as long as it can achieve the above object, such as the shape of the plate outside the arc shape.

As described above, since the mix door part 400 that controls the opening degree of the cooling flow path A and the heating flow path B is slidably moved through the sliding door 410, a hinge requiring a predetermined turning space is required. The overall size (length) can be significantly reduced as compared with the conventional structure having the mixed door of the structure, thereby reducing the cost and improving the space efficiency.

On the other hand, the air conditioning case 100, the guide portion 110 for guiding the movement of the sliding door 410 is formed on the inner surface. The guide unit 110 is formed to correspond to the movement trajectory of the sliding door 410 on the inner surface facing the side of the sliding door 410, the fitting protrusion 411 formed on the side of the sliding door 410 The side of the sliding door 410 is formed to be slidably made of a guide groove that is inserted into the guide groove. On the other hand, in the drawing, the guide part 110 is a guide groove into which the side of the sliding door 410 is fitted as an example, which is a guide protrusion inserted into the groove formed in the side of the sliding door 410 in a preferred embodiment. Various shapes and structures are possible as long as the above object can be achieved.

The rotation shaft 420 is rotatably mounted on the air conditioning case 100, and is positioned such that an outer circumferential surface thereof faces one side surface of the sliding door 410. Here, the rotary shaft unit 420 is connected to the drive unit to rotate in the forward and reverse directions, the drive unit may be applied to a known rotary motor, etc., and is controlled according to each air conditioning mode of the vehicle.

The moving means 430 is provided in the sliding door 410 and the rotating shaft part 420, respectively, to allow the sliding door 410 to slide according to the rotation of the rotating shaft part 420.

Referring to FIG. 5, the moving means 430 has a structure in which the moving means 430 is engaged with each other, so that the moving protrusion 431 formed in the sliding door 410 and the moving shaft 431 correspond to the moving protrusion 431. ) Is a moving groove 432 formed in ().

In detail, the moving protrusions 431 and the moving grooves 432 extend in a zigzag manner along the moving direction of the sliding door 410, respectively. As such, the moving means 430 has a zigzag shape in which the moving protrusion 431 and the moving groove 432 are zigzag-shaped, so that the moving direction of the sliding door 410 can be precisely controlled and the sliding door 410 can be moved. Movement in the lateral direction perpendicular to the movement direction can be prevented. This is because the movement means 430 is a structure consisting of a gear and a gear groove is easy to control in the moving direction, but the movement clearance occurs in the lateral direction, it is difficult to precise control, because the gear shape is not easy to process and the design range is It is roughly the limiting one.

The moving protrusions 431 and the moving grooves 432 can adjust the inclination angle according to the force engaged with the set number of the moving grooves 432. The moving protrusions 431 and the moving grooves 432 are each zero. It is preferable to have the zig-zag inclination angle (theta) within more than 65 degrees. This is because when the zigzag inclination angle θ exceeds 65 °, slip occurs in the sliding door 410, which makes it difficult to accurately position the sliding door 410.

6 and 7 illustrate various embodiments of the moving protrusions 431 and 431a. Referring to the drawings, as shown in FIG. 6, the moving protrusions 431 may be formed in a semicircle with a longitudinal cross-sectional shape. As shown in FIG. 7, the moving protrusion 431a may have a polygonal longitudinal shape.

As described above, the moving protrusions 431 and 431a may have various shapes depending on the contact area and the degree of the engaging force that are contacted when engaged. In the drawing, the longitudinal cross-sectional shape is shown as a semi-circle and a rectangular shape. Of course, various polygons including ellipses can be applied. In addition, although not shown, the shape of the moving groove 432 corresponds to the longitudinal cross-sectional shape of the moving protrusions 431 and 431a.

On the other hand, the moving means 430 in the drawing, the moving projections 431 and 431a are formed in the sliding door 410, and the moving groove 432 is formed in the rotary shaft portion 420, but the example On the contrary, of course, the movement grooves 432 may be formed in the sliding door 410 and the movement protrusions 431 and 431a may be formed in the rotation shaft 420.

The vehicle air conditioner 600 further includes a support part 500 for preventing slip due to lifting during sliding movement of the sliding door 410. The support part 500 prevents lifting of the sliding door 410 by contacting and supporting the other side surface of the sliding door 410 at a position opposite to the rotating shaft part 420 about the sliding door 410. In order to prevent the loss of friction, the sliding door can be uniformly moved in accordance with the rotation of the rotating shaft part. The support part may be provided over the entire area or the partial area in the width direction of the other side of the sliding door.

Although not shown, the support part 500 may further include an elastic means to elastically support the sliding door 410, and the elastic means may be applied to various configurations such as a known coil spring.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100 ... air-conditioning case 110 ... guide
200 ... evaporator 300 ... heater core
400 ... Mix door part 410 ... Sliding door
420 ... axis of rotation 430 ... means of transport
431,431a ... Moving protrusion 432 ... Moving groove
500 ... support 600 ... car air conditioner
A ... cooling passage B ... heating passage

Claims (9)

An air conditioner case, an evaporator provided inside the air conditioner case, a heater core provided at the rear of the evaporator, a cooling passage provided between the evaporator and the heater core and bypassing the heater core, and passing through the heater core. In the vehicle air conditioner comprising a mix door portion for adjusting the opening degree of the heating passage,
The mix door unit,
A sliding door slidingly moving between the evaporator and the heater core to adjust an opening degree of the cooling passage and the heating passage;
A rotating shaft unit provided on one side of the sliding door and rotating by a driving unit;
And a moving means provided in the sliding door part and the rotating shaft part so as to be engaged with each other, and sliding the sliding door according to the rotation of the rotating shaft part.
The means for moving,
The sliding door and the rotating shaft formed in each of the moving projection and engaging with each other, a moving groove,
And the moving protrusion and the moving groove extend in a zigzag along the moving direction of the sliding door, respectively. The method according to claim 1,
The sliding door is a vehicle air conditioner bent in an arc shape. The method according to claim 1,
The vehicle air conditioner is provided to be in contact with the other side of the sliding door, to further prevent a slip due to the lifting during the sliding movement of the sliding door. The method according to claim 1,
The air conditioning case, a vehicle air conditioner having a guide portion for guiding the movement of the sliding door on the inner side. The method according to claim 4,
The guide portion is a guide groove formed to correspond to the movement trajectory of the sliding door on the inner surface facing the sliding door,
The sliding door is a vehicle air conditioner having a fitting protrusion fitted to the guide groove on one side. delete delete The method according to claim 1,
And the moving protrusion and the moving groove each have a zigzag inclination angle of more than 0 ° and within 65 °. The method according to claim 1,
The moving protrusion and the moving groove is a vehicle air conditioner, each of which has a semicircular or polygonal shape in longitudinal section.

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