KR20100094719A - Door for air conditioner in vehicles - Google Patents

Abstract

PURPOSE: A door for a vehicle air-conditioner is provided to enhance the productivity by manufacturing a door in a double injection manner using the same mold. CONSTITUTION: A door for a vehicle air-conditioner comprises a rotary shaft(110), a door plate(120), a rubber member(130), and a sealing member(140). Both ends of the rotary shaft are rotatably installed on the wall of an air conditioning case. The door plate is formed integrally with the rotary shaft. The rubber member is formed along the edge of the door plate. The sealing member seals the gap between the wall of the air conditioning case and the rotary shaft. One side(141) of the sealing member is formed from the same material as the rotary shaft and the door plate and the other side(142) is formed from the same material as the rubber member.

Description

Door for air conditioner in vehicles

The present invention relates to a door for a vehicle air conditioner, and more particularly, by forming a sealing member formed at the end of the rotating shaft for sealing with the air conditioning case, one half is formed of a resin material and the other half is formed of a rubber material, The present invention relates to a door for a vehicle air conditioner capable of double injection molding in the same mold to improve productivity, reduce manufacturing cost, and prevent air leakage due to a sealing member.

The vehicle air conditioner is a vehicle interior that is installed for the purpose of securing the driver's front and rear view by removing the frost, which is caught in the windshield during the rainy season or the winter, or by cooling or heating the interior of the car during the summer or winter. The air conditioner is generally equipped with a heating device and an air conditioner at the same time to selectively introduce the outside air or bet and then heat or cool the air and blow it into the vehicle interior 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 air conditioner includes a three piece type in which the three units are independently provided, and an evaporator unit and the heater core unit in the air conditioning case. The semi-center type, which is built in and the blower unit is provided as a separate unit, and the center mounting type, in which all three units are built in the air conditioning case, can be roughly classified.

1 is a cross-sectional view showing a conventional vehicle air conditioner, Figure 2 is a perspective view showing a door of a conventional vehicle air conditioner, Figure 3 is a cross-sectional view showing a door of a conventional vehicle air conditioner, the air conditioner (1) On the inlet side, an air inlet 43 is formed, and on the outlet side, an air outlet consisting of a defrost vent 44a, a face vent 44b, and a floor vent 44c, 44d, each of which has an opening degree controlled by a mode door 45b. An air conditioning case 40 formed with 44; A blower (not shown) connected to the air inlet 43 of the air conditioning case 40 to blow the inside or outside air; An evaporator 41 and a heater core 42 embedded in the air conditioning case 40; Installed between the evaporator 41 and the heater core 42, and the opening degree of the cold air passage (P1) for bypassing the heater core 42 and the warm air passage (P2) passing through the heater core 42 It comprises a temperature control door (45a) to adjust.

In addition, the floor vents 44c and 44d are separated into a front seat vent 44c and a rear seat vent 44d.

On the other hand, the air discharge port 44 side is connected to the duct (not shown) is supplied to the air discharged from the air discharge port 44 to each part of the vehicle interior.

In addition, the doors 46 such as the temperature control door 45a and the mode door 45b may include a rotation shaft 46a rotatably installed on an inner wall surface of the air conditioning case 40 and the rotation shaft 46a. Is formed in the form of a flat plate on the side is made of a door plate 46b for adjusting the opening degree of the air passage.

At this time, the rotation shaft 46a is rotatably coupled to the shaft support hole (not shown) formed on the wall surface of the air conditioning case 40.

In addition, a rubber member 46c is formed at the edge of the door plate 46b to improve sealing property, and circular sealing members 46d made of the same rubber material as the rubber member 46c are formed at both ends of the rotation shaft 46a. Is formed.

That is, the circular sealing member 46d seals between the wall surface of the air conditioning case 40 and the rotation shaft 46a to prevent air leakage through the shaft support hole.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is operated, the temperature control door 45a opens the cold air flow passage P1 and closes the hot air flow passage P2. do. Accordingly, the air blown by the blower not shown is exchanged with the refrigerant flowing through the evaporator 41 while passing through the evaporator 41 to be changed to cold, and then the mixing chamber (Mixing) through the cold air flow path (P1). Chamber (MC), and then discharged to the vehicle interior through the vent (44a ~ 44d) that is opened according to a predetermined air conditioning mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode), Cooling of the vehicle interior is performed.

In addition, when the maximum heating mode is activated, the temperature control door 45a closes the cold air flow passage P1 and opens the hot air flow passage P2. Accordingly, the air blown by the blower not shown is heat-exchanged with the cooling water flowing through the heater core 42 through the hot air flow passage (P2) after passing through the evaporator 41 and passing through the heater core 42. After changing to warmth, the liquid flows toward the mixing chamber MC, and is then discharged into the vehicle interior through the vents 44a to 44d opened according to a predetermined air conditioning mode, thereby heating the vehicle interior.

On the other hand, when the cooling mode other than the maximum cooling mode, that is, 1/2 cooling mode is operated, the temperature control door 45a is rotated to the neutral position, the cold air flow passage (P1) with respect to the mixing chamber (MC) And open all the hot air flow path (P2). Therefore, after the cool air passing through the evaporator 41 and the warm air passing through the heater core 42 are mixed by flowing toward the mixing chamber MC, the vents 44a to 44d are opened to the vehicle interior through the air conditioning mode. Discharged.

However, since the rotary shaft 46a and the door plate 46b of the door 46 are formed of a resin material, and the rubber member 46c and the circular sealing member 46d are formed of a rubber material, the door 46 ), Two separate molds were needed to make.

That is, in the first mold, the rotation shaft 46a and the door plate 46b of the door 46 are injection molded with a resin material, and in the second mold, the rubber member 46c is made of rubber material with the resin injection product made of the first mold inserted. And injection molding the circular sealing member 46d.

In this case, the injection and cooling time is required when the injection from the first mold to the resin material, and the injection and cooling time is the same as the first mold when injection into the rubber material in the second mold, there is a problem that productivity is reduced.

In addition, since two separate molds are required to manufacture the door 46, there is a problem in that the manufacturing cost increases.

On the other hand, although the circular sealing member 46d may not be molded in order to injection molding the door 46 from the same mold, in this case, there is a problem of air leakage since the circular sealing member 46d is not formed.

An object of the present invention for solving the above-mentioned problems is to form a sealing member formed at the end of the rotating shaft for sealing with the air conditioning case, one half is formed of a resin material and the other half is formed of a rubber material, in the same mold It is possible to provide a door for a vehicle air conditioner that can double injection molding to improve productivity, reduce manufacturing costs and prevent air leakage due to a sealing member.

The present invention for achieving the above object is a rotary shaft rotatably installed at both ends on the wall surface in the air conditioning case, a door plate integrally formed on the rotary shaft, a rubber member formed along the circumference of the door plate, and In the door for the vehicle air conditioner comprising a sealing member formed to surround the rotary shaft at the end of the rotary shaft to seal between the wall surface and the rotary shaft of the air conditioning case, wherein the sealing member is one half of the rotating member relative to the door plate And formed of the same material as the door plate, and the other half is formed of the same material as the rubber member, it characterized in that the double injection molding in the same mold.

The present invention, the sealing member is formed at the end of the rotary shaft for sealing with the air conditioning case one side half is formed of a resin material and the other half is formed of a rubber material relative to the door plate, the same mold as a rotary double injection mold In addition, the door can be manufactured by double injection, which increases productivity and reduces manufacturing costs due to the use of the same mold.

In addition, the rotary lower mold can be used in common by the door structure described above, so that the lower mold can be injection molded with a rubber material while the secondary mold of the lower mold is injection molded with a resin material. This allows the two materials to be worked on at the same time, increasing productivity and reducing mold costs.

In addition, since the sealing member may be formed on the door manufactured by double injection in the same mold by the door structure, air leakage through the shaft support hole is prevented.

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

In addition, the same parts as in the prior art will be described with reference to the related drawings.

Figure 4 is a perspective view showing a door for a vehicle air conditioner according to the present invention, Figure 5 is a cross-sectional view showing a door for a vehicle air conditioner according to the present invention, Figure 6 is a door for a vehicle air conditioner according to the present invention of the air conditioning case Partial cross-sectional view showing a state coupled to the shaft support hole, Figure 7 is a view showing a rotary double injection mold for manufacturing a door for a vehicle air conditioner according to the present invention, Figures 8a and 8b is Figure 7 is a rotary double injection mold Is a view showing a process in which the door is manufactured.

First, the vehicle air conditioner to which the door according to the present invention is briefly described with reference to the conventional drawings, an air inlet 43 is formed at the inlet side and a plurality of air outlets 44 are formed at the outlet side and the inside of the air reservoir An air conditioner case 40 having a cold air passage P1 and a hot air passage P2 formed therein, an evaporator 41 and a heater core 42 installed on an air passage inside the air conditioning case 40, and the evaporator. It is installed between the 41 and the heater core 42 and adjusts the opening degree of the cold air passage (P1) bypassing the heater core 42 and the warm air passage (P2) passing through the heater core 42. It is comprised including the temperature control door 45a.

In addition, an air inlet 43 of the air conditioning case 40 is provided with a blower (not shown) for blowing inside or outside air.

The plurality of air discharge ports 44 formed at the exit side of the air conditioning case 40 may include a defrost vent 44a for discharging air toward the windshield of the vehicle, and discharge air toward the face of the front occupant. And face vents 44b and floor vents 44c and 44d for discharging air toward the occupants' feet.

The floor vents 44c and 44d are divided into a front seat vent 44c for discharging air toward the front occupant's foot and a rear seat vent 44d for discharging air toward the rear occupant's foot. It is.

In addition, the vents 44a to 44d are opened and closed by the mode door 45b to adjust the opening degree.

On the other hand, the temperature control door 45a and the mode door 45b are connected to a cam (not shown) or a lever (not shown) driven by an actuator (not shown) installed on the outer surface of the air conditioning case 40 and rotated. During operation, the openings of the cold and hot air passages P1 and P2 and the vents 44a to 44d are adjusted.

As such, the doors 100 installed in the air conditioning case 40, such as the temperature control door 45a and the mode door 45b, adjust the opening degree of a specific air passage. Hereinafter, the door is a feature of the present invention. 100 will be described in detail.

The door 100 includes a rotation shaft 110, a door plate 120, a rubber member 130, and a sealing member 140.

Both ends of the rotation shaft 110 are rotatably installed on the wall surface of the air conditioning case 40. At this time, both ends of the rotation shaft 110 are formed on both side walls of the air conditioning case 40. Rotatably coupled to.

The door plate 120 is integrally formed on the side of the rotating shaft 110, at this time may be formed only on one side of the rotating shaft 110, all formed on both sides of the rotating shaft 110 as a center May be

The rotation shaft 110 and the door plate 120 is integrally formed of a resin material.

The rubber member 130 is formed along an end circumference of the door plate 120 and is made of a rubber material. The rubber member 130 is to be elastically in close contact with the inner surface of the air conditioning case 40 during the rotation operation of the door 100 to improve the sealing property.

In addition, the sealing member 140 is formed in a circular shape to surround the rotating shaft 110 at the end of the rotary shaft 110, wherein the end of the sealing member 140 is elastic on the inner wall surface of the air conditioning case 40 In close contact with the inner wall surface of the air conditioning case 40 and the sealing between the shaft 110.

That is, the sealing member 140 formed at the end of the rotary shaft 110 is in close contact with the inner wall surface of the air conditioning case 40 to prevent the leakage of air through the shaft support hole (40a) for supporting the rotary shaft 110 will be.

On the other hand, the end of the sealing member 140 is formed to open from the outer circumferential surface of the rotating shaft 110 is in contact with the wrap around the protrusion (40b) formed around the shaft support hole (40a) of the air conditioning case 40 wall sealing Further improve.

The sealing member 140 has one half 141 formed of the same material as the rotation shaft 110 and the door plate 120 based on the door plate 120, and the other half 142 is formed of the rubber. It is formed of the same material as the member 130.

That is, the sealing member 140 is to be formed of two divided halves 141 and 142 made of different materials to form a single sealing member 140.

At this time, one side half 141 of the sealing member 140 is integrally molded when injection molding the rotary shaft 110 and the door plate 120 in a resin material, the other half 142 is the rubber member 130 It is molded integrally during injection molding with rubber material.

Here, the one half portion 141 made of the same resin material as the door plate 120 is preferably formed to be elastically deformed to have a thin plate shape to ensure the sealing performance.

In addition, a protrusion 121 is formed at an end of the door plate 120 to increase coupling force between the door plate 120 and the rubber member 130, and a rubber corresponding to the protrusion 121. The groove 130 is formed in the member 130.

In this case, the protrusion 121 is eccentrically formed at one end of the door plate 120 such that one side of the protrusion 121 is coplanar with one side of the door plate 120.

In addition, the present invention enables the door 100 to be manufactured by double injection molding in the same mold (single mold) through the door 100 structure as described above. Productivity can be improved by reducing the time required for repeated injection molding over a single cycle.

FIG. 7 is a view schematically illustrating a rotary double injection mold for manufacturing the door in double injection. As shown, the rotary double injection mold 200 includes a rotary lower mold 210 and a fixed upper mold 220. It consists of.

In this case, the rotary lower mold 210 is installed in the same shape and used in common, thereby improving productivity. That is, referring to FIGS. 8A and 8B, it can be seen that the primary mold 211 and the secondary mold 212 of the rotary lower mold 210 have the same shape, and thus, the primary mold ( In the second mold 212, the rubber member 130, in the second mold 212, while the rotary shaft 110, the door plate 120, the protrusion 121, and one half 141 of the sealing member 140 are injection molded in the resin material. Since the other half 142 of the sealing member 140 is injection molded with a rubber material, productivity is improved.

In addition, the fixed upper mold 220 has two sets of different shapes, that is, the rotary shaft 110, the door plate 120, the protrusion 121, the sealing member 140, one half half 141 of the resin material The primary mold 221 for injecting, and the secondary mold 222 for injecting the rubber member 130 and the other half 142 of the sealing member 140 into a rubber material have different shapes.

Hereinafter, referring to FIGS. 8A and 8B, the injection molding process will be described. Since the primary mold 211 and the secondary mold 212 of the rotary lower mold 210 are the same, the lower mold ( Upper and lower molds 210 and 220 when the primary mold 211 or the secondary mold 212 (the primary mold is illustrated as an example in the drawing) of the 210 contact the primary mold 221 of the upper mold 220. Resin is injected into the space between the rotation shaft 110, the door plate 120, the protrusion 121, the sealing member 140, one side half portion 141 is injection molded,

At this time, when the injection molding of the resin material is completed, the lower mold 210 is rotated 180 degrees, and the resin injection molding is positioned toward the secondary mold 222 of the upper mold 220.

Subsequently, as shown in FIG. 8B, the primary mold 211 or the secondary mold 212 (the secondary mold is illustrated as an example) of the lower mold 210 on which the resin injection molding is seated is the upper mold 220. When contacted with the secondary mold (222) of the rubber mold is injected into the space between the resin injection molding and the upper mold 220, the rubber member 130 and the other half 142 of the sealing member 140 is injection molding do.

In addition, since the rotary lower mold 210 is commonly used, a rubber material is formed on the secondary mold 212 side of the lower mold 210 while injection molding the resin from the primary mold 211 side of the lower mold 210. Injection molding allows the two materials to be worked on simultaneously, improving productivity and reducing mold costs.

As described above, the present invention uses a door 100 structure in which one half 141 of the sealing member 140 is formed of a resin material and the other half 142 is formed of a rubber material based on the door plate 120. By doing so, the door 100 may be manufactured by double injection in the same mold using the rotary double injection mold 200, and manufacturing cost may be reduced by using the same mold.

As described above, in the above, one half 141 of the sealing member 140 is formed of a resin material, and the other half 142 is formed of a rubber material. Applicable and the same effect can be obtained.

1 is a cross-sectional view showing a conventional vehicle air conditioner,

Figure 2 is a perspective view showing a door of a conventional vehicle air conditioner,

3 is a cross-sectional view showing a door of a conventional vehicle air conditioner;

4 is a perspective view showing a door for a vehicle air conditioner according to the present invention;

5 is a cross-sectional view showing a door for a vehicle air conditioner according to the present invention;

Figure 6 is a partial cross-sectional view showing a state in which the door for the vehicle air conditioner according to the present invention coupled to the shaft support hole of the air conditioning case,

7 is a view showing a rotary double injection mold for manufacturing a door for a vehicle air conditioner according to the present invention;

8A and 8B are views illustrating a process of manufacturing a door in a rotary double injection mold.

<Description of Signs of Major Parts of Drawings>

100: door 110: rotation axis

120: door plate 130: rubber member

140: sealing member 200: rotary double injection mold

210: lower mold 220: upper mold

Claims (5)

Rotating shaft 110 is rotatably installed at both ends on the wall surface of the air conditioning case 40, a door plate 120 formed integrally with the rotating shaft 110, and is formed along the circumference of the door plate 120 And a rubber member 130 and a sealing member 140 formed to surround the rotary shaft 110 at an end of the rotary shaft 110 to seal between the wall surface of the air conditioning case 40 and the rotary shaft 110. In the door for the vehicle air conditioner, The sealing member 140 has one side half 141 formed of the same material as the rotation shaft 110 and the door plate 120 based on the door plate 120, and the other half 142 is formed of the rubber member ( 130 is formed of the same material, the vehicle air conditioner door, characterized in that to enable double injection molding in the same mold. The method of claim 1, On the engaging surface of the door plate 120 and the rubber member 130, a protrusion 121 is formed at the end of the door plate 120 to increase the mutual coupling force, the rubber member 130 corresponding to the protrusion 121 The door for the vehicle air conditioner, characterized in that the groove 131 is formed. The method of claim 2, The protrusion 121 is a vehicle air conditioner, characterized in that the one side of the protrusion 121 is formed eccentrically to one side of the end of the door plate 120 to form the same plane as one side of the door plate 120. door. The method of claim 1, The sealing member 140 is a door for a vehicle air conditioner, characterized in that the two divided halves (141) (142) made of different materials to form a single sealing member (140). The method of claim 1, One side half portion (141) made of the same material as the door plate 120 of the sealing member 140 is made of a thin plate shape, characterized in that the elastically deformable door for the vehicle.

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