KR20040070878A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioner for a vehicle is provided to minimize the occupation space of the air conditioner, to flow air actively in the internal passage of the air conditioner, and to use the internal passage partially as the chamber of the refrigerator by decreasing the volume of the air conditioner unit. CONSTITUTION: An air conditioner comprises a first chamber(10) placed upstream in the flow direction of air flowing into a blower unit; a second chamber(20) placed at the side of the first chamber; a third chamber(30) extended from the upper part of the first chamber to the lower part of the second chamber, and composed of a defrost vent(34) opened and closed by a defrost door(31), a face vent(35) opened and closed by a face door(32) and a floor vent(36) opened and closed by a floor door(33); a first separation wall(40) having a first discharge port(12) and a second discharge port(13) to separate the first chamber, the second chamber and the third chamber; a second separation wall(50) extended from the center of the first separation wall to the third chamber to form the second chamber; an evaporator(60) installed vertically to the air flow direction in the first chamber; a heater core(70) placed in the second chamber and inclined to the evaporator; and a temperature adjusting door(80) having support arms pivotally installed for the evaporator and regulating the opening degree of the first discharge port or the second discharge port. A blowing passage is formed at both sides of the second chamber to communicate the second chamber with the third chamber.

Description

Automotive Air Conditioning Unit {AIR CONDITIONER FOR VEHICLE}

The present invention relates to an air conditioner for an automobile, and more particularly, in an air conditioner of a semi-center mounting type and a center mounting type in which an evaporator unit and a heater unit are integrated. In order to minimize the space occupied by the vehicle by increasing the space utilization of the unit, and to allow the air conditioning system to perform the function of cold / warmer.

The air conditioner of an automobile air conditioner compresses a refrigerant by a compressor driven by an engine power and sends the refrigerant to a condenser, and condenses the refrigerant in the condenser. The condensed refrigerant passes through a receiver dryer and an expansion valve, and then the evaporator. Going through. The low-temperature refrigerant in the gas-liquid state passing through the evaporator exchanges heat with the inside / outside of the vehicle blown by the blower unit. At this time, the inside of the vehicle is cooled by the air that is cooled down and discharged into the cabin. .

In addition, the heating device allows the coolant to maintain a high temperature of 50 to 80 while cooling the engine through the heater core, and heats the air blown by the blower unit and the coolant passing through the heater core to discharge the warm air into the room. By doing so, the interior of the car is heated.

The air conditioner is composed of a blower unit, an evaporator unit, and a heater unit. The three-piece air conditioner, the evaporator unit, and the heater unit, each of which consists of a single element, is a semi-center mounting unit. Type air conditioner and center mounting type air conditioner in which each of the above three units are integrated together, and in recent years, in consideration of the reduction of installation space and the simplification of structure, the semi-center mounting type and center Mounting type air conditioners are mainly adopted.

7 shows a typical configuration of a conventional semi-center mounting type air conditioner.

The evaporator 110 of the internal flow path of the air conditioning unit 100 is installed on the upstream side in the air flow path direction, and the heater core 120 is located on the downstream side. At the inlet of the air conditioning unit 100, a blower unit including a motor not shown and a blower fan driven by the motor is installed. On the other hand, an indoor unit suction port and an outdoor unit suction port are positioned above the blower unit, and the suction port is opened and closed according to the turning of the switching door. Therefore, the air is introduced into the blower unit through the indoor unit suction port or the outdoor unit suction port by the suction force generated by the rotation of the blower fan according to the driving of the motor, and the air is blown into the internal flow path of the air conditioning unit 100 to thereby evaporator 110. The air is exchanged while passing through the heater core 120 to change to cold or warm air. In addition, the heater core 120 has a rear vent side to guide the air discharge toward the car window, so that the defrost vent 140 for removing the frost of the car window, and the face vent 150 for guiding the air discharge to the upper half of the vehicle interior. ) And floor vents 160 for guiding the air discharge to the lower half of the vehicle interior are sequentially installed. Each of the vents 140, 150 and 160 is opened and closed by the doors 170, 180 and 190 according to the cooling and heating mode.

On the other hand, the temperature control for switching the internal flow path of the air conditioning unit 100 so that the air blown from the blower unit passes through or bypasses the heater core via the evaporator 110 installed upstream of the internal flow path of the air conditioning unit 100 The door 130 is installed. Therefore, when the temperature control door 130 is blocking the air passage of the heater core 120 side, only the air in the cold state flows into the upper flow path while passing through the evaporator 110 so that the vent 140 (150) Cooling may be performed indoors by being discharged to the vehicle interior through the open vents. On the other hand, when heating is required in the room or when warm air such as defrosting is required, the temperature control door 130 moves in the direction of closing the inner flow path of the upper side of the heater core 120 to pass through the evaporator 110. All of the air passes through the heater core 120, and at this time, the warm air that is heat-exchanged with the heater core 120 is discharged to the vehicle interior through the open vents of the vents 140, 150 and 160. Heating can be performed indoors. Of course, since the compressor connected to the engine of the vehicle does not operate during the heating, the refrigerant does not naturally flow in the evaporator 110.

In the conventional semi-center mounting type air conditioner, the temperature control door 130 is positioned between the evaporator 110 and the heater core 120, and vents the air passing through the heater core 120 during heating. In order to blow toward the 140, 150, and 160, the air passages through the vents 140, 150, and 160 must be installed at the rear of the heater core 120. This increased the volume, resulting in a large occupancy of the interior space.

On the other hand, since the temperature control door 130 is formed of a plate type or a flap type, the air passing through the evaporator 110 passes through the heater core 120 when heated, or the heater core when cooled. When the air is blown toward the vents 140, 150, and 160 by bypassing the 120, the air hits the temperature control door 130 and is not smoothly blown toward the vents 140, 150, and 160. This caused severe noise and reduced airflow, adversely affecting heating and cooling performance.

In addition, the floor vent 160 connected to the floor duct 190 for guiding the air discharge toward the lower half of the vehicle is installed at the bottom of the driver or the passenger seat while being in contact with the interior dash panel, which simply moves warm and cold air. It was used only as a route.

The present invention is to solve the above conventional problems, it is possible to minimize the space occupied by the air conditioning unit, and to smoothly flow the air in the internal flow path of the air conditioning unit, as well as some of the internal flow path of the air conditioning unit An object of the present invention is to provide a vehicle air conditioner that can be used as a chamber of a cold / warmer.

1 is a cross-sectional view showing a cooling mode of a vehicle air conditioner according to the present invention.

2 is a cross-sectional view showing a heating mode of the air conditioner for automobiles according to the present invention.

3 is a cross-sectional view showing a bi-level mode of a vehicle air conditioner according to the present invention.

4 is a cross-sectional view taken along the line II of FIG. 1.

5 is a perspective view of a temperature control door according to the present invention.

6 is a perspective view showing an embodiment of the clamp means for storing the can of the present invention.

7 is a cross-sectional view showing an embodiment of a conventional vehicle air conditioner.

(Explanation of symbols for the main parts of the drawing)

1: air conditioning unit 2, 3: both side walls

10: first chamber 12: first outlet

13: 2nd exit 20: 2nd chamber

21, 22: bulkhead 23: ventilation passage

30: third chamber 31: defrost door

32: face door 33: floor door

34: Defrost vent 35: Face vent

36: floor vent 40: first partition wall

50: second separation wall 60: evaporator

70: heater core 80: temperature control door

81,82: support arm 83: door plate

90: cold / warm means 91: door

92: clamp means 93: guide member

94: elastic member 95: handle portion

96: guide home 97: groove

98: outer wall 99: can

In order to achieve the above object, the air conditioner for a vehicle of the present invention guides air into an interior space of an air conditioning unit in a first chamber located upstream of an air flow direction, a second chamber located at a side of the first chamber, and indoors. A third chamber having a vent installed therein, having a first outlet connected to the second chamber, and forming a first separation wall and a second chamber including a second outlet at an interface with the third chamber; Each of the second separation walls extending from the central portion of the first separation wall to the third chamber is provided, and the heater core is inclined with respect to the evaporator in the second chamber and the evaporator is in the vertical direction in the first chamber. And each support arm is formed in the inner direction of the evaporator and pivotally installed on both walls of the air conditioning unit, the temperature control to adjust the opening degree of the first outlet and the second outlet The installation, and the made of the air flow passage where the second chamber and the third chamber may first be formed by a second heater core being installed extending side wall and the first separation wall and the second separation wall provided in the chamber to preside over.

In addition, the door plate of the first partition wall and the temperature control door according to the present invention has an arc-shaped shape, respectively, the temperature control door is to be turned around both support arms so that the first outlet and the second outlet according to the turning angle It is characterized by selectively controlling the opening degree of the sphere.

On the other hand, the present invention is characterized in that the installation of the cold / cold storage means including a clamp means for accommodating the door and the can that can be opened from the outside in the floor vent flow path in the third chamber.

Further features and advantages of the present invention will become more apparent from the accompanying drawings and detailed description of the preferred embodiments.

1 to 3 are cross-sectional views of the air conditioner of the present invention according to the ejection mode of the interior of the vehicle.

The semi-center mounting type air conditioning unit 1 in which the evaporator 60 and the heater core 70 are integrally formed includes a first chamber 10 in which the evaporator 60 is installed and the first chamber. Adjacent to the side of the 10, the second chamber 20 having the heater core 70 embedded therein and the defrost door 31 at the upper portion extending from the upper direction of the lower portion of the second chamber 20 from the top of the first chamber. The third chamber 30 having a defrost vent 34 to be opened and closed by a), a face vent 35 to be opened and closed by a face door 32, and a floor vent 36 to be opened and closed by a floor 33. Can be divided into

In order to separate the first chamber 10, the second chamber and the third chamber 30, the first separation wall 40 and the second separation wall 50 are disposed in the air conditioning unit 1. Install. The first separating wall 40 has a first outlet 12 connected to the second chamber 20, and includes a second outlet 13 at an interface with the third chamber 30. . On the other hand, the second separation wall 50 is formed to extend from the central portion of the first separation wall 40 to the third chamber 30 to form the second chamber 20.

Therefore, the space of the first chamber 10 located on the upstream side of the internal flow path of the air conditioning unit 1 where the blower unit is installed includes the evaporator 60, the second chamber 20, the third chamber ( 50 and a first separation wall 40 which is provided to partition each other, and the first separation wall is preferably formed in an arc shape that swells toward the heater core 70.

On the other hand, in the space of the first chamber 10, the first outlet 12 and the both sides of the air conditioning unit (1) corresponding to both sides of the evaporator 60 toward the inner direction in which the evaporator 60 is installed A temperature control door 80 for adjusting the opening degree of the second outlet 13 is provided.

As shown in FIG. 5, the temperature control door 80 is integrally provided at both ends of the door plate 83 and the door plate 83 having an arc shape, as in the first separation wall 40. 81, 82, respectively.

The support arms 81 and 82 are pivotally supported on both side surfaces of the evaporator 60 and the corresponding wall surfaces of the air conditioning unit 1 so that the door between the evaporator 60 and the heater core 70 can be rotated. Since the rotation distance is shorter than that of the conventional temperature control door structure, the volume of the air conditioner 1 can be reduced almost by the length of the support arm.

Next, the structure of the second chamber 20 in which the heater core 70 of the present invention is installed will be described.

According to the present invention, the air flow passage 23 through which the heat-exchanged air passes through the heater core 70 and flows to the third chamber 30 corresponding to the mix chamber is not located behind the heater core 70 as in the prior art. To be installed on both side portions in which the heater core 70 is installed.

That is, in the air conditioner, since the heater core 70 is generally smaller in size in the width direction than the evaporator 60 by (H), both space portions H / 2 in the width direction are heat exchanged in the heater core. It is used as a ventilation passage 23 through which warmth passes.

4 is a cross-sectional view taken along the line I-I of FIG. 1 showing the structure of the ventilation passage 23 as described above.

The size of the evaporator 60 in the width direction corresponds to the size W between the partition walls 2 and 3 in the width direction of the air conditioning unit 1, and the size in the width direction of the heater core 70 ( W ') is smaller by 2 / H on each side than the size W of the evaporator. When the partition walls 21 and 22 are installed to extend from the first partition wall 40 toward the heater core 70, the partition walls 21 and 22, the first partition wall 40, and the second partition wall are provided. The air passage 23 through which the air in the warm state, which is heat-exchanged from the second chamber 20 to the third chamber, is formed by the side walls 2 and 3 of the air conditioning unit 1 and 50. .

That is, the ventilation passage 23 of the present invention is not located behind the heater core 70 as in the prior art, but is formed on both left and right sides of the heater core 70, so that the front and rear thicknesses of the air conditioning unit 1 are It can be reduced as much as the rear passage.

The third chamber 30 of the present invention is a space that functions as a mix chamber in which cold air and warm air that are heat-exchanged while passing through the first chamber 10 and the second chamber 20 are mixed with each other. Defrost vent 34 is formed so that the discharge can be controlled by the defrost door 31, and the face is formed so that the air can be discharged toward the upper half of the vehicle interior, the face opening 32 is controlled The vent 35 and the floor vent 36 which are formed so as to discharge air toward the floor of the vehicle interior and whose opening degree is adjusted by the floor door 33 are sequentially installed. Of the vents 34, 35 and 36, the defrost vent 34 and the face vent 35 are formed in front and rear at the upper end of the third chamber, and the floor vent 36 is provided with a heater core 70. Adjacent to the second chamber 20 is configured to discharge through the lower end of the rear end of the air conditioning unit (1).

On the other hand, in the floor vent 36 of the third chamber 30, the cold / warm storage means 90 is additionally installed, so that the cold / warm air flowing in the floor vent 36 can be utilized appropriately.

The cold / warmer means 90 includes a door 91 that can be opened from the outside and a clamp means 92 that can accommodate the can 99.

That is, since the cold / warmer means 90 is installed adjacent to the dash panel, the driver or passenger can open the door 91 from the outside as needed to open the can 99 stored in the cold / warmer means 90. It can be withdrawn to the outside.

The clamp means 92 is a configuration for maintaining a stable state irrespective of the movement of the vehicle, a specific configuration is represented in FIG.

That is, the outer wall 98 having the shape of a tetrahedron on the outside and the guide groove 96 formed in the longitudinal direction on the opposite side of the outer wall 98, respectively, the guide groove 96, the guide groove ( An inner guide member 93 which is movable in the longitudinal direction according to the size of the can 99 along the 96, and the groove of each of the guide members 93 so that the guide member 93 can be fixed at a predetermined position ( An elastic member 94 having one end coupled to 97 and a handle portion 95 fixed to the other end of the elastic member 94 to move the guide member 93 in the longitudinal direction manually.

Next, the ejection mode executed by the above configuration will be described in detail.

a. Cool-Vent Mode

1 shows a cooling mode, in which the air cooled in the evaporator 60 is supplied only to the face vent 35, and the defrost vent 34 and the floor vent 36 are closed to cool the vehicle interior. The temperature control door 80 closes the first outlet 12 located in front of the heater core 70 and connects the first chamber 10 and the third chamber 30 to the second outlet 13. Will open. On the other hand, in order to supply only to the face vent 35, the face door 32 is moved to the open position.

In the cooling mode state, the air introduced by the blower is exchanged with the evaporator 60 to be in a cold state, and the front of the heater core 70 is closed by the temperature control door 80 to pass through the first chamber 10. After the flow immediately to the third chamber (30). At this time, since the defrost door 31 and the floor door 33 are closed and only the face door 32 moves to the fully open position, the defrost door 31 and the floor door 33 are supplied to the interior of the vehicle through the face vent 35, thereby cooling the interior of the vehicle interior. Can be ventilated.

b. Warm-Floor Mode

2 is a mode set only at the time of heating, and the temperature control door 80 closes the second outlet 13, while the first outlet 12 located in front of the heater core 70 is in an open state. It becomes

Therefore, the air supplied from the blower unit does not heat exchange in the evaporator 60 of the first chamber 10 but passes through the second core 13 through heat exchange with the heater core 70 to change into warm air.

The air changed by the warm air flows from the second chamber 20 to the third chamber 30 through the air blow passages 23 positioned at both left and right sides of the heater core 70. At this time, the defrost door 31 is only partially open, the floor door 33 is moved to the fully open position, the face door 32 is placed in the closed position, the warm air is approximately 70 ~ 80 to the floor vent 36 % Is supplied, and 20-30% is supplied to the defrost vent 34.

In addition, the well-known Warm-Mix Mode and Warm-Defrost Mode have all the same conditions as the warm-floor mode described above, except that the door is located in the third chamber 30. Of course, this can be accomplished by changing the 31, 32, 33 according to the desired conditions.

That is, in the warm-mix mode, the warm air heat exchanged while passing through the heater core 70 by opening the defrost door 31 more than half is performed in the defrost vent 34 and the floor vent 36. As it supplies about 50% of each furnace, heating and defrosting can be performed at the same time.

In the warm-defrost mode, only the defrost door 31 is opened in the front-open state so that only the defrost door 34 is blown to the defrost vent 34. Therefore, the warm-defrost mode is set only when the windshield glass is defrosted. do.

c. Bi-Level Mode

3 is a bi-level mode that is set when the cooling and heating are mixed, the temperature control door 80 is located in the middle, the air cooled while passing through the evaporator 60 is the third through the second outlet (13) It is introduced into the chamber 30 or guided to the heater core 70 through the first outlet 12. At this time, the air that has been warmed by the heater core 70 is discharged from the second chamber 20 through the air passages 23 located at both left and right sides of the heater core 70 as in the worm-floor mode. It will flow to the three chamber (30). Therefore, the third chamber 30 is in a state where cold and warm are mixed. On the other hand, the mixed air is supplied to the face vent 35 and the floor vent 36 by about 50% by positioning the face door 32 and the floor door 33 so as to open in the middle, respectively.

In the above, the present invention has been described with a semi-center mounting type air conditioner, but the above structure can be applied to the center mounting type air conditioner in which the blower unit is integrally installed at the front side of the evaporator. There is no.

In the above, the present invention has been described and described so as to understand the principles of the present invention, but the present invention is not limited to the configuration and operation as shown and described. Those skilled in the art will be able to make numerous changes and modifications to the present invention without departing from the spirit and scope of the appended claims. All such changes, modifications, and equivalents thereof should be considered to be within the scope of the present invention.

As described above, according to the air conditioner according to the present invention, each support arm is formed in the inner direction of the evaporator and is pivotally installed on both wall surfaces of the air conditioning unit, thereby adjusting the temperature of the opening of the first outlet and the second outlet. By installing the door, the volume of the air conditioning unit 1 can be reduced by almost the length of the support arm, compared to the structure of the temperature control door which is spaced apart from the conventional evaporator by a predetermined distance and controls the opening degree.

In addition, the heater chamber is installed in the second chamber so that the second chamber and the third chamber can communicate with each other, so that the side wall and the first separation wall and the ventilation passage formed by the second separation wall are formed. As it is not located in the rear of the heater core, as formed on the left and right sides of the heater core it is possible to further reduce the thickness of the air conditioning unit before and after the conventional rear passage.

On the other hand, the door plate of the first separation wall and the temperature control door has an arc shape, respectively, it is possible to minimize the ventilation resistance by the air flow.

In addition, the present invention can make the most of the heat exchanged cold / warmer by installing the cold / warmer means in the floor vent flow path in the third chamber including a clamp means that can be opened from the outside and can accommodate the can.

Claims (7)

A first chamber (10) located upstream of the flow direction of air flowing from the blower unit in the internal passage of the air conditioning unit (1); A second chamber 20 located on the side of the first chamber 10; Face vents 35, which are opened and closed by a defrost vent 34 and a face door 32, which are extended from an upper portion of the first chamber to a lower direction of the second chamber 20 and opened and closed by a defrost door 31. A third chamber 30 having a floor vent 36 which is installed and opened and closed by a floor 33; In order to separate the first chamber 10, the second chamber 20 and the third chamber 30, respectively, the first chamber 12 has a first outlet 12 connected to the second chamber 20, A first dividing wall 40 including a second outlet 13 at an interface with the three chambers 30; A second separation wall (50) extending from the central portion of the first separation wall (40) to the third chamber (30) to form the second chamber (20); An evaporator 60 installed in the first chamber 10 in a direction perpendicular to the air flow direction; A heater core 70 positioned in the second chamber 20 and inclined with respect to the evaporator 60; Each of the support arms 81 and 82 is formed in the evaporator 60 in an inward direction and pivotally installed on both wall surfaces of the air conditioning unit 1, so that the first outlet 12 and the second outlet ( 13) a temperature control door (80) for adjusting the opening degree Air-conditioning apparatus for a vehicle, characterized in that the ventilation passages (23) are formed on both sides of the second chamber (20) so that the second chamber (20) and the third chamber (30) can communicate. The blower passage 23 is provided with partition walls 21 and 22 so as to extend from the first separation wall 40 toward the heater core 70, and the partition walls 21 and 22. The air conditioner of claim 1, wherein the first separation wall (40), the second separation wall (50), and both side walls (2) (3) of the air conditioning unit (1) are formed. The air conditioner of claim 1, wherein the first separation wall has an arc shape. The first plate according to claim 2, wherein the door plate (83) of the temperature control door (80) has an arc shape and is pivoted about both support arms (81) and (82). An air conditioner for automobiles, characterized in that the opening degree of the outlet (12) and the second outlet (13) is selectively adjusted. 2. An air conditioning apparatus for an automobile according to claim 1, further comprising cold / warm storage means (90) further installed in the floor vent (36) flow path in the third chamber (30). 5. The vehicle according to claim 4, wherein the cold / warmer means (90) comprises a door (91) which can be opened from the outside and a clamp means (92) which can accommodate the can (99). Air conditioning system. 6. The clamp means (92) according to claim 5, wherein the clamp means (92) has a shape of a tetrahedron on the outside and a longitudinal direction on the opposite side of the outer wall (98) and the outer wall (98) respectively receiving the can (99) therein Guide grooves 96 formed in the inner guide member 93, which is movable in the longitudinal direction according to the size of the can 99 along the guide grooves 96, the guide member 93 can be fixed at a constant position It is fixed to the other end of the elastic member 94 and the elastic member 94 having one end coupled to the groove 97 of each of the guide member 93 so that the guide member 93 can be moved manually in the longitudinal direction Automotive air conditioning apparatus comprising a handle portion 95 that is.