KR101703663B1 - Apparatus for air conditioning - Google Patents

Abstract

Disclosed is an air conditioner capable of maintaining the air volume of discharged air and improving the mixing property between cold air and warm air. The air conditioner includes an air conditioner case having an air inlet formed on an inlet side thereof, an air ventilation case formed with an air outlet port, a defrost vent, a face vent and a floor vent on the outlet side, a blower installed on the air inlet side, And a tempo door for regulating the opening of the cold air flow path and the warm air flow path in the air conditioning case. The air conditioning apparatus is disposed in the air flow path where the cold air flow path and the warm air flow path meet, And an air mixing guide portion for mixing cold air flowing through the air flow path and warm air flowing through the hot air flow path. Therefore, by sufficiently mixing the cold air and the warm air, the temperature difference between the air discharged toward the face vent and the air discharged toward the floor vent is reduced, thereby providing a pleasant air conditioning environment.

Description

{APPARATUS FOR AIR CONDITIONING}

The present invention relates to an air conditioner, and more particularly, to an air conditioner installed in a vehicle or the like to maintain conditions such as temperature, humidity, airflow, and cleanliness of a room in a state suitable for the purpose of use.

Background Art [0002] Generally, an air conditioner is installed in a vehicle or the like, and is an apparatus for heating or cooling indoor by introducing outside air into the room or circulating air in the room to heat or cool.

In the case of an air conditioner for a vehicle, an evaporator for cooling action and a heater core for heating action are formed in the air conditioner case, and the air cooled or heated by the evaporator or heater core is supplied to each part Ventilate selectively.

Such an air conditioner has three-piece type in which three units are independently configured according to the independent structure of the blower unit, the evaporator unit and the heater core unit, and the three-piece type in which the evaporator unit and the heater core unit are built in the air conditioning case A semi-center type in which the blower unit is configured as a separate unit, and a center mounting type in which all three units are incorporated in a single air conditioning case.

Hereinafter, an example of a conventional center mounting type automotive air conditioner will be described with reference to the drawings.

1 is a sectional view showing the interior of a conventional automotive air conditioner.

1, a vehicle air conditioner 1 includes an air conditioning case 10, an air blowing device 30, an evaporator 2 and a heater core 3, a tempo door 20, and a plurality of modes And a door (16).

An air inlet 11 is formed at the entrance side of the air conditioning case 10 and a deprost vent 12, a face vent 13 and a floor vent 14, which are air outlets through which the opening is controlled by the mode door 16, Is formed. The air blowing device 30 is provided on the side of the air inlet 11 and has a blowing pen 31.

The evaporator 2 and the heater core 3 are provided on the internal air passage of the air conditioning case 10 and the tempdoor 20 is provided in the air cooling case P1 and the air passage P2, And the mode door 16 adjusts the opening degree of the defrost vent 12, the face vent 13, and the floor vent 14 according to the air conditioning mode.

In this case, the defrost vent 12 discharges air to the windshield side of the vehicle, the face vent 13 discharges air to the face of the occupant, and the floor vent 14 discharges air to the lower body of the occupant.

When the maximum cooling system is operated, the tempdoor 20 opens the cold air passage P1 and closes the warm air passage P2. The air blown by the blowing device 30 is exchanged with the refrigerant flowing in the evaporator 2 through the evaporator 2 to be changed into a cool air and then the cool air is introduced into the mixing chamber MC . Thereafter, the air is discharged to the inside of the vehicle according to a predetermined air conditioning mode, and cooling of the inside of the vehicle is performed.

Further, when the maximum heating system is operated, the tempdoor 20 closes the cold air passage P1 and opens the warm air passage P2. The air blown by the air blowing device 30 passes through the evaporator 2 and then flows through the heater core 3 through the hot air flow path P2 and flows into the heater core 3 through the cooling water flowing in the heater core 3, And then flows to the mixing chamber MC side. Thereafter, the air is discharged to the inside of the vehicle according to a predetermined air conditioning mode, and heating of the inside of the vehicle is performed.

Further, when the air mixing system is operated, the temp door 20 rotates to the neutral position to open both the cold air flow path P1 and the warm air flow path P2 with respect to the mixing chamber MC. Accordingly, the air blown by the blower 30 flows into the mixing chamber MC after the cool air having passed through the evaporator 2 and the warmer having passed through the heater core 3 are mixed and mixed, And is discharged to the inside of the vehicle.

However, in the conventional automotive air conditioner 1, the cool air passing through the cold air passage P1 and the warm air passing through the hot air passage P2 are not smoothly mixed with each other in the air mixing system, And an increase in discomfort of the occupant.

Particularly, in the B / L mode, there is a problem that the temperature difference between the upper air discharged toward the face vent 13 and the lower air discharged toward the floor vent 14 increases.

In order to solve such a problem, the conventional automotive air conditioner 1 has a means for delaying the flow of the air discharged into the air conditioning case 10. However, such a method of delaying the flow of air has a problem in that the pressure loss of the discharged air is increased, and the air volume is decreased.

In order to solve such a conventional problem, the present invention provides an air conditioner capable of maintaining the air volume of the discharged air and improving the mixing property between the cold air and the warm air.

The air conditioner according to the present invention includes an air conditioner case having an air inlet formed on an inlet side thereof and an air outlet port formed on the outlet side thereof, a defrost vent, a face vent, and a floor vent, a blower installed on the air inlet side, And a tempo door for regulating the opening of the air flow path and the air flow path in the air conditioning case, the air conditioning apparatus comprising: And an air mixing guide portion for mixing cold air flowing in the cold air passage and warm air flowing in the hot air passage.

The air conditioning apparatus according to the present invention can provide a pleasant air conditioning environment by reducing the temperature difference between the air discharged to the face vent side and the air discharged to the floor venture side as the cool air and the warm air are sufficiently mixed.

At the same time, the air conditioner according to the present invention has a structure that does not block the flow of air, so that the air flow rate can be maintained.

In addition, the air conditioning apparatus according to the present invention can be effectively applied in accordance with various types of air conditioning apparatuses, because the air mixing guide unit can be easily installed and detached from the air conditioning case.

1 is a sectional view showing the interior of a conventional automotive air conditioner,
2 is a cross-sectional view showing the inside of an air conditioner according to an embodiment of the present invention,
3 is an enlarged cross-sectional view of "S" in Fig. 2,
4 is a perspective view of an air mixing guide according to an embodiment of the present invention,
5 is a perspective view of an air mixing guide according to another embodiment of the present invention,
6A and 6B are perspective views of an air mixing guide according to a modification of FIG. 4,
7 is a cross-sectional view illustrating a bi-level mode of the air conditioner according to an embodiment of the present invention.

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

2 is a cross-sectional view illustrating an inside of an air conditioner according to an embodiment of the present invention.

2, the air conditioner is installed in a vehicle and includes an air conditioning case 110, a blower 130, an evaporator 102, a heater core 103, a tempo door 120, and an air mixing And includes a guide portion (200).

In the air conditioning case 110, an air inlet 111 is formed at the inlet side and an air outlet is formed at the outlet side. The air outlet is composed of a defrost vent 112, a face vent 113, and a floor vent 114. The defrost vent 112 discharges air to the windshield side of the vehicle, the face vent 113 discharges air to the face of the occupant, and the floor vent 114 discharges air to the foot of the occupant.

A plurality of mode doors 116 are provided in the air conditioning case 110 to control the opening of the defrost vent 112, the face vent 113 and the floor vent 114. The mode doors 116 A plate-type door or a dome-type door. In addition, the air conditioning case 110 may further include a rear vent 114 'for discharging air to the rear side of the vehicle.

The blower 130 includes a blowing pen 131 and is installed in the air conditioning case 110 on the side of the air inlet 111. The evaporator 102 and the heater core 103 are installed downstream of the air inlet 111 in the air conditioning case 110. In this case, for the air blown by the blower 130, the evaporator 102 performs a cooling action and the heater core 103 performs a heating action. Further, the tempo door 120 regulates the opening of the cold air flow path P1 and the warm air flow path P2 in the air conditioning case 110.

The air mixing guide unit 200 is fixed to the mixing chamber MC in the air conditioning case 110 and is disposed on the air flow path where the cold air flow path P1 and the warm air flow path P2 meet. The air mixing guide unit 200 serves to mix cold air flowing in the cold air passage P1 and warm air flowing in the hot air passage P2.

Accordingly, the temperature difference between the air discharged toward the face vent 113 and the air discharged toward the floor vent 114 can be reduced as the cool air and the warm air are sufficiently mixed.

The cool air on the cool air passage P1 passing through the blower 130 and the evaporator 102 has a low temperature and a relatively small flow resistance as compared with the warm air in the air conditioner case 110, The warmth on the warm air passage P2 is lower in speed than the cold air for the opposite reason.

As a result, the cool air and the warm air are not sufficiently mixed in the mixing chamber MC. In the bi-level mode, the cool air having a high speed is discharged relatively more toward the face vent 113 than the warm air. A phenomenon occurs that a large amount of air is discharged toward the floor vent 114 side.

The air conditioning apparatus according to the present embodiment uses a separate air mixing guide unit 200 provided in the air conditioning case 110 for sufficient mixing of cold air and warm air. This configuration is distinguished from other structures for the mixing of cold air and warmth. That is, the structure of the present embodiment is distinguished from the structure for mixing cold air and warm air such as changing the shape of the air conditioning case, changing the arrangement of the evaporator and the heater core, changing the design of the tempo door,

The above-described other structures, which are distinguished from the present embodiment, are capable of achieving a certain degree of purpose for mixing the cold air and the warm air, but are faced with problems such as a decrease in the wind speed of the air to be discharged and a decrease in the air volume. In addition, it is not suitable for reducing the difference between the upper and lower temperatures in the bi-level mode.

The structure of the air mixing guide unit 200 according to the present embodiment will be described in detail. The air mixing guide unit 200 includes a first guide unit and a second guide unit. The first guide part guides the flow of the air toward the floor vent 114 to promote the mixing of cool air and warm air toward the floor vent 114. The second guide part guides the flow of the air toward the defrost vent 112 or the face vent 113 to promote the mixing of cool air and warm air toward the defrost vent 112 or the face vent 113.

Accordingly, by appropriately distributing the cool air and the warm air toward the floor vent 114 side and the face vent 113 side, it is possible to reduce the phenomenon that the cold air passing through the cold air channel P1 flows directly to the face vent 113 side, The temperature difference between the top and bottom of the air discharged to the floor vent 114 and the air discharged toward the face vent 113 can be reduced so that the air having a stable temperature can be supplied to the occupant.

FIG. 3 is an enlarged cross-sectional view of the "S" of FIG. 2, and FIG. 4 is a perspective view of an air mixing guide according to an embodiment of the present invention.

3 and 4, the air mixing guide unit 200 includes a plate member 230, a first rib 210, and a second rib 210. The air mixing guide unit 200 includes a plate member 230, And a second rib 220.

The plate member 230 is disposed at a portion where the cold air flow path P1 and the warm air flow path P2 meet. The plate member 230 is formed so as to extend in parallel with the hot air passage P2 and block the cold air passage P1.

That is, the plate member 230 is formed in a plate shape having a predetermined thickness and is formed in parallel with the flow direction of the warm air on the outlet side of the hot air passage P2 through which the warm air flows through the heater core 103 in the longitudinal direction. In addition, the plate member 230 is formed so as to block the flow of cold air passing through the cold air flow path P1.

The first rib 210 is disposed on one surface of the plate member 230, that is, on the upper surface thereof. The first rib 210 is formed to be bent from the upper surface of the plate member 230 toward the floor vent 114 side. The first rib 210 may be fastened to the plate member 230 or may be integrally formed.

The second rib 220 is disposed on one surface, that is, the upper surface of the plate member 230. The second rib 220 is formed to be bent from the upper surface of the plate member 230 toward the defrost vent 112 or the face vent 113 side. The second rib 220 may be fastened to the plate member 230 or integrally formed therewith.

The air mixing guide portion 200 having such a structure is formed such that the plate member 230 is formed in parallel with the air flow direction of the warm air flow path P2 to partially block the flow of cool air without interfering with the flow of warm air, Thereby blocking the flow on the face vent 113 side. Therefore, efficient mixing of cool air and warm air is possible.

At the same time, the first ribs 210 and the second ribs 220 induce mixing of cool air and warm air on the side of the floor vent 114 and the side of the face vent 113, respectively, Enabling partial dispersion mixing. Therefore, the air mixing guide unit 200 can mix the cool air and the warm air more effectively in the vertical direction, and the vertical temperature difference can be reduced.

At least one hole 240 is formed in the plate member 230. The holes 240 are preferably formed in a plurality of holes, and pass through the upper and lower surfaces of the plate member 230. In this case, the first rib 210 and the second rib 220 are bent from one end of the hole 240 so as to cover at least a part of the hole 240, respectively.

Accordingly, the cold air and the warm air are passed through the holes 240 of the plate member 230 to maintain the air volume. The cool air and warm air having passed through the holes 240 are guided along the first ribs 210 and the second ribs 220 which are bent at the upper portion thereof so that the floor vents 114 and the face vents It is possible to send cool air and warm air to the air conditioner 113 side.

Also, the plate member 230 is formed to be bent at least once toward the defrost vent 112 or the face vent 113 side. That is, the plate member 230 is provided with the bent portion 231 and is formed so as to be parallel to the air flow direction of the hot air passage P2 at the outlet side of the hot air passage P2. (113).

Accordingly, the cold air passing through the cold air passage P1 primarily hits against the plate member 230 to block the flow thereof, and a part of the air is guided through the holes 240 along the first rib 210 and the second rib 220 And the other portion is guided along the bent portion starting from the bent portion 231 and moves toward the face vent 113 side. As a result, while the flow of the cold air is partially delayed, the movement to the upper side is guided to prevent the decrease of the air volume.

In addition, the air mixing guide unit 200 is detachable from the air conditioning case 110. That is, a fitting groove 119 is formed on the inner wall of the air conditioning case 110, and a side surface of the plate member 230 of the air mixing guide unit 200 is inserted into the fitting groove 119. The fitting grooves 119 are preferably formed on the right and left side walls of the air conditioner case 110.

Therefore, it is possible to easily assemble and disassemble the air mixing guide unit 200 in the air conditioning case 110. [ Particularly, the air mixing guide unit 200 has a detachable structure and can be effectively applied to various types of air conditioners by changing the shape of the air mixing guide unit 200.

In addition, the air conditioning case 110 has a first partition 117 and a second partition 118. The first partition wall 117 defines the heater core 103 and the floor vent 114 side and the second partition wall 118 is formed to surround an upper portion of the evaporator 102.

In this case, the plate member 230 is formed from the end of the first partition wall 117 to the end of the second partition wall 118, the first rib 210 is disposed on the first partition wall 117 side, The second ribs 220 are spaced apart from the first ribs 210 toward the second ribs 118.

Part of the warm air passing through the warm air passage P2 travels along the first partition wall 117 and is guided to the floor vent 114 side by the first rib 210 immediately at the end of the first partition wall 117 The other part is guided to the face vent 113 side by the second rib 220 and another part is mixed with the cold air while continuing to flow in the advancing direction. A part of the cold air passing through the cold air passage P1 can not be moved toward the face vent 113 directly by the second partition wall 118 but bypasses the lower portion to hit the plate member 230, And the other part is guided by the first rib 210 to the floor vent 114 side.

5 is a perspective view of an air mixing guide according to another embodiment of the present invention.

Referring to FIG. 5, the first ribs 210a and the second ribs 220a and 220b are formed in a plurality of rows in the width direction of the air conditioning case 110, 210a and 210b and the second ribs 220a and 220b are configured to individually adjust the inclined angle bent from the plate member 230. [

That is, one first rib 210a is bent at a slightly gentle inclination angle with respect to the plate member 230, and the other first rib 210b is bent at a somewhat sharp inclination angle with respect to the plate member 230. [ One second rib 220a is bent at a slightly gentle inclination angle with respect to the plate member 230 and the other second rib 220b is bent at a somewhat sharp inclination angle with respect to the plate member 230. [

The inclination angles of the first ribs 210a and the second ribs 220a and 220b can be individually adjusted so that the air in the air conditioner case 110 can be substantially centered in the left- The mixing direction of the cold air and the warm air can be appropriately designed and changed in accordance with requirements such as air conditioning conditions and capacity. Such an operation effect can be achieved by simply changing the inclination angle of the first ribs 210a, 201b and the second ribs 220a, 220b. Effective function is exercised.

In addition, the individual inclination angle adjusting structures of the ribs are combined with the detachable coupling structure between the air conditioning case 110 and the air mixing guide part 200, A greater effect can be obtained by replacing and applying the guide portion 200 alone.

Referring back to the first embodiment, the first rib 210 and the second rib 220 each have an isosceles triangle shape extending from one end of the hole 240 and becoming narrower toward the upper side.

This shape minimizes the occurrence of joints between the first ribs 210 and the second ribs 220 and the plate member 230 and secures the flow of air passing through the holes 240, It is more effective in induction.

6A and 6B are perspective views of an air mixing guide according to a modification of FIG.

The first rib 210 and the second rib 220 may have a streamlined parabolic shape as shown in FIG. 6A, or may have a rectangular shape as shown in FIG. 6B. In addition, the first rib 210 and the second rib 220 may be formed in other shapes.

7 is a cross-sectional view illustrating a bi-level mode of the air conditioner according to an embodiment of the present invention.

7, air supplied through the blower 130 passes through the evaporator 102, part of which is moved toward the cool air passage P1 by the halfway opening of the tempo door 120, Passes through the core (103) and moves toward the warm air flow path (P2) side.

A part of the cool air passing through the cold air passage P1 is guided by the first rib 210 in the mixing chamber MC and is moved to the side of "A" while the other part is guided by the second rib 220, B "side. A part of the warm air passing through the hot air passage P2 is guided by the first rib 210 in the mixing chamber MC and moved to the side of the "A" while the other part is guided by the second rib 220 Quot; B "side.

The dome type mode door 116 opens both the floor vent 114 side and the face vent 113 side so that the cool air and the warm air moved to the "A" side are mixed and discharged to the floor vent 114 side. Quot; side are mixed and discharged to the face vent 113 side.

Although the air conditioning apparatus according to the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that various modifications and equivalents may be made by those skilled in the art without departing from the scope of the present invention. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

102: Evaporator 103: Heater core
110: air conditioning case 111: air inlet
112: De-Frost Vents 113: Face Vents
114: Floor Vents 120: Temp Door
130: blower 200: air mixing guide part
210: first rib 220: second rib
230: plate member 240: hole

Claims (9)

An air conditioning case 110 in which an air inlet 111 is formed at an inlet side and a defrost vent 112, a face vent 113 and a floor vent 114 are formed at an outlet side; A heater core 103 for performing a heating action and an opening degree of the cooling air passage P1 and the warm air passage P2 in the air conditioning case 110. The blower 130, And a tempo door (120) for adjusting the temperature of the air,
And is disposed in the air conditioning case 110 and is disposed on a flow path of the air where the cold air flow path P1 and the warm air flow path P2 meet and the cool air flowing through the cold air flow path P1 and the warm air flow path P2, And an air mixing guide part (200) for mixing warmth flowing through the air mixing guide part
The air mixing guide unit 200 includes: a first guide unit for guiding the flow of air to the floor vent 114 to promote mixing of cool air and warm air toward the floor vent 114; And a second guide unit for guiding the flow of air to the defrost vent 112 or the face vent 113 side to promote the mixing of cool air and warm air toward the defrost vent 112 or the face vent 113 side ≪ / RTI &
The air mixing guide unit 200 includes:
A plate member 230 extending in parallel to the hot air passage P2 at a position where the cold air passage P1 and the hot air passage P2 meet and blocking the air passage P1;
A first rib 210 disposed on one side of the plate member 230 and bent toward the floor vent 114; And
And a second rib (220) disposed on one side of the plate member (230) and bent toward the defrost vent (112) or the face vent (113) side. delete delete The method according to claim 1,
The plate member 230 is formed with at least one hole 240 so as to penetrate both surfaces thereof and the first rib 210 and the second rib 220 respectively cover at least a part of the hole 240 Is formed to be bent from one end of the hole (240). The method according to claim 1,
Wherein the plate member (230) is formed to be bent at least once toward the defrost vent (112) or the face vent (113) side. The method according to claim 1,
The first ribs 210 and the second ribs 220 are formed in parallel to one another in the width direction of the air conditioning case 110 and the plurality of first ribs 210 and the second ribs 220 220) are individually adjustable in inclination angle bent from the plate member (230). The method of claim 4,
Wherein the first rib (210) and the second rib (220) are each formed in an isosceles triangle shape extending from one end of the hole (240) and becoming narrower toward the upper side. The method according to claim 1,
Wherein the air mixing guide unit (200) is detachably coupled to a fitting groove (119) formed in an inner wall of the air conditioning case (110). The method according to claim 1,
The air conditioning case 110 includes a first partition 117 for partitioning the heater core 103 and the floor vent 114 and a second partition 118 formed to surround an upper portion of the evaporator 102 Respectively,
The plate member 230 is formed from the end of the first partition wall 117 to the end of the second partition wall 118. The first rib 210 is disposed on the first partition wall 117 side, And the second ribs (220) are spaced apart from the first ribs (210) toward the second partition (118) side.

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