KR102422938B1 - Air conditioner for vehicle - Google Patents

Abstract

The present invention prevents an air leak from occurring to the end of the dividing wall 140 installed on the air inlet passage 221 through which air flows from the ventilation unit 30 of the vehicle air conditioner to the air conditioning case 110, The partition wall 140 can be quickly and accurately assembled in the inside of the air inlet passage 221, and more specifically, an air inlet 211 is formed on the inlet side and a plurality of air outlets 112 and 113 on the outlet side. , 114, 115 are formed, the air inlet 211 and the air outlet (112, 113, 114, 115) communicating the air passageway is formed therein, the air conditioning case 110, and; an evaporator 101 and a heater core 102 installed at regular intervals on the air passage of the air conditioning case 110; a blowing unit 30 installed on the side of the air inlet 211 to blow air into the air conditioning case 110; and a partition wall 140 that is fixedly installed on the air inlet passage 221 inside the air inlet 211 and distributes the air flowing into the evaporator 101 to the left and right; In the air conditioner for a vehicle having a vehicle, characterized in that at one end of the dividing wall (140), an assembly end (142) is formed so as to be assembled on the air inlet passage (221) by fitting. It's about air conditioning.

Description

Air conditioner for vehicle {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for a vehicle, which prevents air leakage from occurring to the end of a partition wall installed on an air inlet passage through which air flows from a blower unit to an air conditioning case, and inserts the partition wall inside the air inlet passage. It relates to an air conditioner for a vehicle having a feature that allows for quick and accurate assembly.

A vehicle's air conditioning system is an interior component of a vehicle installed for the purpose of cooling or heating the interior of the vehicle in summer or winter, or removing frost that gets stuck on the windshield in rain or winter, so that the driver's front and rear visibility can be secured. Such an air conditioner is usually equipped with a heating device and a cooling device at the same time, and after selectively introducing outside air or bet air, the air is heated or cooled and blown into the inside of the vehicle to cool, heat, or ventilate the inside of the vehicle.

Such an air conditioner includes a three-piece type in which the three units are independently provided according to the independent structure of the blowing unit, the evaporator unit, and the heater core unit, and the evaporator unit and the heater core unit are built in the air conditioning case and the blowing 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 three units are built into the air conditioning case.

Meanwhile, in recent years, so-called left and right independent air conditioners have been applied so that air of different temperatures is supplied to the driver's seat and the front passenger's seat in accordance with the needs of occupants to individually cool and cool the air.

1 shows an internal shape of an air conditioning case of a conventional vehicle air conditioner.

Referring to FIG. 1, in the vehicle air conditioner 1, the air inlet 11 is formed on one side and the opening degree is controlled by the mode doors 16a, 16b, and 16c on the other side, respectively, a defrost vent 12a, face The air conditioning case 10 in which the vent 12b and the floor vents 12c and 12d are installed, and the blower unit 30 connected to the air inlet 11 of the air conditioning case 10 to blow bets or outside air (see FIG. 2) and the evaporator 2 and the heater core 3 built in the air conditioning case 10, and a cold air passage installed between the evaporator 2 and the heater core 3 and bypassing the heater core 3 ( P1) and a temperature control door 15 for controlling the opening degree of the hot air passage P2 passing through the heater core (3) is made.

The floor vents 12c and 12d are branched into a floor vent 12c for a front seat and a floor vent 12d for a rear seat.

And, since the temperature difference between the front seat and the rear seat is severe, in order to solve this problem, the rear of the floor vents 12c and 12d induces air to be discharged to the console box (not shown), which is the central part of the vehicle interior, to supply the air conditioning air to the rear seat space. A console vent 12e is installed.

The air conditioning case 10 is made of a divided upper and lower case in order to facilitate the installation of internal components, and the upper case is divided into left and right cases centering on the center of the left and right sides and assembled with each other. configured to be

According to the vehicle air conditioner configured as described above, for example, when the cooling cycle is operated, the temperature control door 15 opens the cold air passage P1 and blocks the warm air passage P2.

In this state, the air introduced through the air inlet 11 of the air conditioning case 10 by the blower unit 30 exchanges heat with the refrigerant flowing inside the evaporator 2 while passing through the surface of the evaporator 2 to cool the air. , and then flows toward the cold air passage P2 and is discharged into the vehicle interior through the vents 12a, 12b, 12c, and 12d that are opened according to a predetermined air discharge mode, thereby cooling the vehicle interior.

However, in the vehicle air conditioner 1 as described above, since the air inlet 11 is formed on one side of the front end of the air conditioning case 10, the air introduced through the air inlet 11 by the blowing unit 30 is There was a problem in that the evaporator 2 did not flow evenly in the entire left and right directions, but was biased to one side to flow.

2 shows an external shape of an air conditioning case of a conventional air conditioner for a vehicle.

The vehicle air conditioner shown in FIG. 2 has a partition wall 40 that distributes the air flowing into the evaporator 2 from the blowing unit 30 in order to solve the problem of air being biased toward the front surface of the evaporator 2 described above. further includes

The separation wall 40 has a front end positioned at the center of the air inlet 11 to divide it into two parts, and the rear end extends to the central position in the left and right direction of the evaporator 2 and then faces the evaporator 2 . As the bending is made, the air flowing into one side of the front end is distributed to the front end of the evaporator 2, and the air flowing into the other side is distributed to the rear end of the evaporator 2, respectively, evenly in the left and right direction of the middle erector 2 configured to flow in.

At this time, the separation wall 40 is assembled by inserting and fixing the upper end to one side inside the upper case while the lower end is fixed to the lower case in a state in which the upper case and the lower case are separated.

However, since a gap is formed between the partition wall 40 installed in the conventional air conditioner for a vehicle and one side of the air conditioning case 10 to which one end is fixed, the interior of the partition wall 40 is formed through the gap. , there is a problem in that air leakage occurs to the outside, which adversely affects the distribution of air evenly to the left and right sides of the evaporator (2).

In addition, in the process of fixing the dividing wall 40 to the air conditioning case 10, one end of the dividing wall 40 collides with the curved shape inside the air conditioning case 10, so that the dividing wall 40 or the air conditioning case ( 10) There is a problem in that the above-mentioned air leak is further aggravated by damage to the inner wall surface.

In addition, there is a problem in that erroneous assembly of the partition wall 40 occurs due to a decrease in assembling property due to contact between the end of the partition wall 40 and the inner shape of the air conditioning case 10 , thereby reducing the productivity of the air conditioner.

Korean Patent Publication No. 2007-0039281 (published on: 2007.04.11) Korean Patent Application Laid-Open No. 2013-0043280 (published date: 2013.04.30)

The present invention has been devised to solve the problems described above in the prior art, and improves the sealing property of a partition wall installed on the air inlet side of the air conditioning case to more evenly distribute the air flowing into the evaporator and air conditioning. An object of the present invention is to provide an air conditioner for a vehicle that enables the partition wall to be easily and quickly assembled in a case to prevent a decrease in productivity of the air conditioner due to erroneous assembly of the partition wall.

According to the present invention for achieving the above object, an air inlet is formed on the inlet side, a plurality of air outlets are formed on the outlet side, and an air passage communicating the air inlet and the air outlet is formed therein. and an evaporator and a heater core installed at regular intervals on the air passage of the air conditioning case, a blowing unit installed on the air inlet side to blow air into the air conditioning case, and an air inlet passage inside the air inlet In the air conditioner for a vehicle having a partition wall that is fixedly installed on the evaporator and distributes the air flowing into the evaporator to the left and right, one end of the partition wall has an assembly end that can be assembled by fitting onto the air inlet There is provided an air conditioner for a vehicle, characterized in that the is formed.

According to the vehicle air conditioner of the present invention, in the process of inserting and installing the partition wall on the evaporator inlet side of the air conditioning case, the assembly end of the partition wall inserted into the air conditioning case is made of a rubber material, so that it collides with the inside of the air conditioning case and is damaged. In addition to preventing the occurrence of the air conditioning case, it is possible to more evenly distribute the air flowing in from the blowing unit in the front and rear directions of the evaporator by improving the sealing property on the inner surface of the air conditioning case.

In addition, according to the present invention, a step portion taperingly formed at the assembly end of the partition wall is formed so that it can be easily and quickly fixed and assembled on the inner surface of the air conditioning case having a shape corresponding to the step portion, so that the partition wall erroneous assembly can be prevented, thereby increasing the productivity of the air conditioner and reducing the manufacturing cost.

1 is a side cross-sectional view showing the internal structure of a conventional vehicle air conditioner;
2 is a perspective view showing an external structure of a conventional vehicle air conditioner;
3 is a side cross-sectional view showing an internal structure of an air conditioner for a vehicle according to an embodiment of the present invention;
4 is a front view showing a partition wall which is a main part of an air conditioner for a vehicle according to an embodiment of the present invention;
5 is a perspective view showing an example in which the dividing wall shown in FIG. 4 is installed in an air conditioner for a vehicle;
Figure 6 is a perspective view showing the opposite side of the dividing wall shown in Figure 5,
FIG. 7 is an enlarged perspective view illustrating a shape in which the partition wall shown in FIG. 4 is assembled to the air conditioning case.

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

3 is a cross-sectional view showing the internal structure of the air conditioner 100 for a vehicle according to an embodiment of the present invention, and FIG. 4 is a partition wall 140 which is a main part of the air conditioner 100 for a vehicle according to an embodiment of the present invention. is a perspective view showing an example in which the dividing wall shown in FIG. 4 is installed in the vehicle air conditioner 100, and FIG. 6 is a perspective view showing the opposite side of the dividing wall shown in FIG. 7 is an enlarged perspective view showing the shape in which the dividing wall shown in FIG. 4 is assembled to the air conditioning case.

As shown in FIG. 3, in the air conditioning apparatus 100 for a vehicle according to the present invention, an air inlet 211 is formed and a plurality of air outlets 112, 113, 114, and 115 are formed on the other side of the air conditioning case 110. And, the evaporator 101 and the heater core 102 installed in the air conditioning case 110, and the air installed in the air conditioning case 110 and heat-exchanged while passing through the evaporator 101 and the heater core 102 It includes a plurality of doors 120, 160, 170, 180 for switching the flow rate and direction of the.

At the air inlet 211 of the air conditioning case 110, a blowing unit 30 (see FIG. 2) for blowing bet or outside air is installed.

The blowing unit has a blower fan installed therein, so that the bet or outside air is forcibly sucked and blown through the air inlet 211 of the air conditioning case 110 .

The air outlets 112 , 113 , 114 , and 115 include a defrost vent 112 , a face vent 113 , and a floor vent 114 , 115 .

The defrost vent 112 is for discharging air toward the windshield of the vehicle, the face vent 113 is for discharging air toward the face of the front seat occupant, and the floor vents 114 and 115 are the legs of the occupant. (or feet) to discharge air.

The floor vents 114 and 115 include a floor vent 114 for a front seat for discharging air toward the legs (or feet) of the front seat occupant, and a rear seat for discharging air toward the legs (or feet) of the rear seat occupant. It branches to a floor vent 115 .

In addition, the air conditioning case 110 has an air passage formed therein, and a cold air passage P1 and a warm air passage P2 are formed on the air passage.

The plurality of doors 120 , 160 , 170 , and 180 are rotatably coupled to the inner wall surface of the air conditioning case 110 , respectively, and include a temperature control door 120 and a mode door 160 , 170 , 180 .

The temperature control door 120 controls the opening degree of the warm air passage P2 in which the heater core 102 is installed, thereby controlling the amount of air flowing into the warm air passage P2 and the air bypassing the warm air passage P2. By doing so, the temperature of the air mixed in the mixing zone MC can be adjusted, and the air mixed in the mixing zone MC is supplied to the inside of the vehicle through the respective air outlets 112 , 113 , 114 and 115 .

The mode doors 160 , 170 , and 180 are respectively installed on the inlet sides of the defrost vent 112 , the face vent 113 , and the floor vents 114 and 115 to control their opening.

That is, the mode doors 160 , 170 , 180 include a defrost door 160 that opens and closes the defrost vent 112 , a face door 170 that opens and closes the face vent 113 , and the floor vents 114 and 115 . ) may be configured as a floor door 180 that opens and closes.

On the other hand, the air inlet 211 of the air conditioning case 110 is extended to have a straight section of a certain length from the side of the air conditioning case 110 to the outlet side of the blowing unit 30 so as to be connected to the outlet of the blowing unit 30, An air inlet passage 221 is formed therein.

The air inlet passage 221 is formed to be perpendicular to the left and right air passages of the air conditioning case 110 , and is formed in parallel with the evaporator 101 .

A partition wall 140 for distributing the air flowing into the evaporator 101 from the blowing unit 30 to the left and right is provided on the air inlet passage 221 .

More specifically, the dividing wall 140 has a planar shape disposed vertically on the air inlet passage 221, and the front end is vertically arranged to divide the air inlet 211 of the air conditioning case 110 into two equal parts in front and back, and , the rear end extends from the front end to the central portion in the left and right direction of the evaporator 101 and then is bent in a direction perpendicular to the evaporator 101 to form a vertical end 242 positioned in front of the evaporator 101 .

Therefore, the air introduced into the air inlet 211 of the air conditioning case 110 by the blowing unit is divided into equal parts by the front end of the dividing wall 140, and the air introduced to one side is the air inlet 211 and close to the evaporator ( 101), the air introduced to the other side is introduced into the air inlet 211 and the rear of the distant evaporator 101, respectively.

On the other hand, the partition wall 140 is assembled by assembling the heater core 102, the plurality of doors 120, 160, 170, 180, and the evaporator 101 to the upper case of the air conditioning case 110, respectively, and the lower part of the upper case. After inserting and fixing the upper end of the separation wall 140 on the air inlet passage 221 formed in the upper case, the lower case is assembled to the upper case and the assembly is performed at the same time. At this time, the lower end of the dividing wall 140 may be installed by assembling the lower case to the upper case in a state in which it is previously fixed to the lower case.

According to an embodiment of the present invention, the upper end of the separation wall 140 in close contact with the air inlet passage 221 of the air conditioning case 110 is assembled with the inner surface on the air inlet passage 221 by fitting with each other. The assembly end 142 is formed to enable it.

The assembly end 142 may be integrally formed by insert-injecting a rubber material into the upper end of the partition wall 140 in the process of manufacturing the partition wall 140 by injection molding.

The assembly end 142 is formed at the upper end to form a sealing structure by making close contact with the inner surface of the air inlet passage 221 .

In order to fix the assembly end 142 of the partition wall 140 on the air inlet passage 221 of the air conditioning case 110 on one side of the air inlet passage 221 to which the upper end of the separation wall 140 is fixed, A fixing groove 410 for inserting and fixing at least a portion of the assembly end 142 of the dividing wall 140 may be formed.

In this case, the assembly end 142 formed on the dividing wall 140 is inserted into the fixing groove 410 as it is bent in a 'L' shape to form a close contact, thereby further improving sealing properties.

The end of the partition wall 140 on the opposite side where the assembly end 142 is not formed is separately sealed to the lower case, and the installation of the partition wall 140 is completed simultaneously with assembling the lower case to the upper case.

On the other hand, in order to more easily insert the separation wall 140 into the inner surface or the fixing groove 410 of the air inlet passage 221, the assembly end 142 has an insertion portion 142a and a stepped portion ( 142b).

The insertion portion 142a extends from the rear end positioned adjacent to the evaporator 101 at the rear end of the separation wall 140 to be adjacent to the front end positioned at the air inlet 211 side, and is positioned in front of the evaporator 101 . As a wide area, it is inserted into the fixing groove 410 formed on the air inlet passage 221 .

The step portion 142b is bent a plurality of times from the end of the insertion portion 142a adjacent to the air inlet 211 to form a step shape.

At this time, the inner surface of the air inlet passage 221 for fixing the assembly end 142 of the dividing wall 140 has a shape and length corresponding to the overall shape including the insertion portion 142a and the step portion 142b. It is formed to have a, and is fixed in the form of fitting the assembly end 142 of the dividing wall 140.

Therefore, when assembling the partition wall 140 on the air inlet passage 221 , the step 142b of the assembling end 142 is fixed in a state in close contact with the air inlet passage 221 , so that the partition wall 140 is ) so that the insertion portion 142a is accurately inserted into the fixing groove 410 and assembled at the correct position.

The step portion 142b constituting the partition wall 140 may be tapered forward toward the air inlet 211 .

In this case, even if the separation wall 140 is inserted into the air inlet passage 221 at regular intervals in the left and right directions, it is guided to the correct position by the tapered surface, so that contact can be made at the same time.

On the other hand, on the upper side of the dividing wall 140 , the air introduced into the air inlet passage 221 is evenly distributed in the front and rear directions of the evaporator 101 . of the distribution unit 144 may be formed.

In addition, FIG. 6 shows the opposite side of the partition wall 140 shown in FIG. 5 , wherein the partition wall 140 is bent toward the evaporator 101 and is vertically disposed on the vertical end 242 . It may be made by insert injection of the sealing member 242a.

At this time, the vertical end portion 242 is a receiving step portion 242b for coupling the sealing member 242a so as to surround the lower and side portions of the sealing member 242a so as to be firmly coupled to the separation wall 140 during insert injection. may be further formed.

In addition, the receiving step portion 242b is formed to further protrude outward in the longitudinal direction from the edge where the end of the sealing member 242a is located, and the separation wall 140 is formed in the air inlet passage 221 of the air conditioning case 110 . In the process of assembling the sealing member 242a may be configured to prevent damage by direct contact with the internal structure of the air inlet passage 221 .

Hereinafter, the operation of the vehicle air conditioner 100 according to the present invention will be described.

The vehicle air conditioner 100 of the present invention has a structure for fixing and installing the partition wall 140 on the air inlet passage 221 for introducing air from the blowing unit 30 to the evaporator 101 of the air conditioning case 110 . As described above, it is assembled by inserting the upper end of the separation wall 140 on which the assembly end 142 is formed into one side of the air inlet passage 221 of the air conditioning case 110 .

According to the present invention, since the assembled end 142 of the dividing wall 140 is made of a rubber material, the sealing property due to the close contact between the dividing wall 140 and one side of the air inlet passage 221 is improved. It is possible to suppress the occurrence of an air leak at the end of 140 .

Conventionally, since the partition wall 140 is made of only plastic material, when inserted into the air conditioning case 110, the end of the partition wall 140 collides with one side of the inside of the air inlet passage 221 to cause the air conditioning case 110 ) or the separation wall 140 is easily damaged.

However, according to the present invention, as the assembly end 142 is formed of a rubber material, damage to the air conditioning case 110 or the separation wall 140 can be prevented.

In addition, according to the present invention, the assembly end 142 of the dividing wall 140 is formed of the insertion portion 142a and the stepped portion 142b, and at the same time, the entirety formed by the insertion portion 142a and the stepped portion 142b. By forming the same shape corresponding to one side of the air inlet passage 221 , it is possible to assemble the dividing wall 140 in an accurate position using the step portion 142b.

That is, when the partition wall 140 is inserted, the step portion 142b of the partition wall 140 is fitted to the corresponding shape of the air inlet passage 221 while adjusting the position of the air conditioning case 110 in the left and right directions. Insertion should be made in the losing position.

In addition, the stepped portion 142b is formed to be tapered so that, when the partition wall 140 is inserted, the corresponding shapes of the air inlet passage 221 are engaged with each other and contacted at the same time, so that the left and right direction of the air conditioning case 110 is determined. To ensure that it can be accurately fixed and assembled in position.

In addition, a sealing member 242a is further provided at the vertical end 242 of the dividing wall 140 so that the sealing member 242a forms a coupling structure with the edge portion of one end of the assembling end 142 at the same time. The sealing function of the wall 140 may be further improved.

At this time, the receiving step portion 242b formed on the vertical end portion 242 firmly couples the sealing member 242a, and at the same time, the receiving step portion 242b has a structure that further protrudes outward from the end of the sealing member 242a. By achieving this, it is possible to prevent damage that may occur when the sealing member 242a comes into contact with the structure inside the air conditioning case 110 when assembling the partition wall 140 and a leak problem according to it in advance.

As described above, in the vehicle air conditioner 100 of the present invention, an assembly end 142 and a vertical end 242 formed by insert injection of a rubber material are formed at the upper end of the partition wall 140, and the assembly end ( By applying the stepped portion 142b and the tapered shape to the 142), the sealing property of the dividing wall 140 can be maximized, and damage caused by a collision when the dividing wall 140 is assembled can be prevented as well as the dividing wall ( 140) can present a fundamental solution that enables quick and easy assembly to the correct position to be fixed.

Up to now, the vehicle air conditioner according to the present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope should be determined by the technical spirit of the appended claims.

100: air conditioner 101: evaporator
102: heater core 110: air conditioning case
140: dividing wall 142: assembled end
142a: insertion portion 142b: stepped portion
211: air inlet 221: air inlet passage
242: vertical end 242a: sealing member
242b: receiving step 410: fixed groove

Claims (10)

An air inlet 211 is formed on the inlet side and a plurality of air outlets 112, 113, 114, 115 are formed on the outlet side, and the air inlet 211 and the air outlets 112, 113, 114, 115 are formed inside. ) and an air conditioning case 110 in which an air passage communicating with each other is formed; an evaporator 101 and a heater core 102 installed at regular intervals on the air passage of the air conditioning case 110; a blowing unit 30 installed on the side of the air inlet 211 to blow air into the air conditioning case 110; and a partition wall 140 that is fixedly installed on the air inlet passage 221 inside the air inlet 211 and distributes the air flowing into the evaporator 101 to the left and right; A vehicle air conditioning system comprising:
An assembling end 142 is formed at one end of the dividing wall 140 so that it can be assembled by fitting on the air inlet passage 221 ,
A fixing groove 410 for inserting and fixing the assembly end 142 is formed in the air inlet passage 221 ,
The assembly end 142 may include an insertion portion 142a horizontally inserted into the fixing groove 410; and a step portion 142b bent downward and forward a plurality of times from one end of the insertion portion 142a to form a step shape; An air conditioner for a vehicle, characterized in that it consists of. According to claim 1,
The assembly end 142 is,
The air conditioner for a vehicle, characterized in that it has a shape corresponding to a surface that is closely fixed on the air inlet passage (221). According to claim 1,
The assembly end (142) is an air conditioner for a vehicle, characterized in that formed by inserting and injecting a rubber material into the partition wall (140). The air conditioner for a vehicle according to claim 1, wherein the assembly end portion (142) is formed at an upper end portion of the partition wall (140). delete delete According to claim 1,
The step portion 142b is,
An air conditioner for a vehicle, characterized in that the downward facing surface is tapered forward. According to claim 1,
The dividing wall 140 is
The air conditioner for a vehicle, characterized in that it is formed by insert-injecting a sealing member (242a) on a vertical end (242) that is bent toward the evaporator (101) and arranged vertically. 9. The method of claim 8,
The vertical end 242 is,
The air conditioner for a vehicle, characterized in that the receiving step portion (242b) for coupling the sealing member (242a) so as to surround the lower and side portions of the sealing member (242a) when insert injection is formed. 10. The method of claim 9,
The receiving step portion 242b is,
The air conditioner for a vehicle, characterized in that the sealing member (242a) is formed to further protrude outward in the longitudinal direction from the edge where both ends are located.

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