KR20040015919A - Air conditioner for car - Google Patents

Abstract

PURPOSE: An air conditioner for an automobile is provided to keep indoor air cozy by rapidly removing condensed water generated in an evaporator, and efficiently removing condensed water remaining between the evaporator and a condensed water outlet to prevent odor and inhabitation of molds. CONSTITUTION: An air conditioner includes a bypass unit heating some of air having passed an evaporator(E) at cooling mode and guiding the air to a drain part to rapidly remove condensed water in the drain part. The bypass unit comprises a plurality of vent holes(41) formed on a partition(40). Cold air introduced to a heater core(H) through a gap on a temperature control door(20) is changed into hot air and discharged to a condensed water outlet(30) through the vent holes formed on the partition. Condensed water flows from the evaporator to the condensed water outlet to be purged by the hot air blown through the vent holes and vaporized so that moisture in the drain part is rapidly removed. Alternatively, the bypass unit is a vent gap formed between partition and a bottom of an air-conditioning case(100).

Description

Automotive air conditioning unit {AIR CONDITIONER FOR CAR}

The present invention relates to an automotive air conditioner, and more particularly, to an automotive air conditioner that allows condensate generated in an evaporator to be quickly removed or discharged to the outside in a cooling mode by using a blown air heated while passing through a heater core.

In general, a vehicle air conditioner is a vehicle that is installed for the purpose of securing the driver's front and rear visibility by removing the frost from the windshield during the summer or winter, or by removing the frost from the windshield during the rain or winter. As a built-in device of the air conditioner, the air conditioner is usually equipped with a heating system and a cooling system at the same time, and after the air or bet is selectively introduced, the air is heated or cooled to blow air into the interior of the car, Defrost or ventilate.

As shown in FIG. 1, a general air conditioner selectively introduces indoor or outdoor air of a vehicle by a blower B according to opening / closing of an internal / external air switching door D1, and introduces the air into an air conditioning case 1. Cooling by passing through the surface of the evaporator (E) or selectively passing through the heater core (H) by the operation of the temperature control door (2), and then cool air or warm air blower opening and closing door (D2, According to the selection of the opening and closing of the D3) is branched into each branch duct (not shown) and discharged to each part of the vehicle interior to remove the frost while cooling and heating the vehicle interior.

In the air conditioning apparatus as described above, the air introduced by the blower (B) and blown toward the air conditioning case (1) must pass through the evaporator (E), which is the cooling mode as a cooling heat exchanger. In general, since it is maintained at a low temperature in the evaporator (E), the saturated steam pressure around the evaporator (E) surface is often low to produce condensed water. Therefore, various bacteria or fungi inhabiting the surface of the evaporator (E), in particular, between the heat exchange fins or the tubes, grow at high humidity, and the bacteria or the fungus are blown through the evaporator (E) when the air conditioner is operated. Mixing causes odor, harming the interior environment of the car and harming the passenger's health.

In order to solve such a problem of the air conditioning apparatus, conventionally, a technique of a method of making air in the vehicle comfortable by installing a separate air freshener on the air passage of the air conditioning apparatus and allowing the fragrance of the air freshener to be discharged into the room together with the air blowing air. Although this has been used mainly, it is an extremely passive method that does not fundamentally solve the air pollution problem caused by bacteria or molds, which only makes passengers feel bad smell. In addition, there is a problem in that the fragrance should be replaced from time to time because there is a limit to the life of the fragrance.

Recently, the bottom surface of the portion of the air conditioning case 1 into which the evaporator E is inserted is inclined so as to quickly discharge the condensate causing the contamination, and the condensate discharge port 3 is formed at the center or one side of the inclined bottom surface. By forming a, the condensed water gathered at the bottom edge of the evaporator (E) has been developed to flow to the condensate discharge port (3) to be discharged to the outside. However, this structure is effective in collecting condensate generated by the evaporator (E), but a large amount of condensed water remains between the evaporator (E) and the condensate discharge port (3) during the discharge to the condensate discharge port (3). There is a limit to preventing the problem of indoor air pollution.

The present invention has been made to solve the above problems, by quickly removing the condensate generated in the evaporator, in particular by effectively removing the remaining condensate between the evaporator and the condensate discharge port by essentially preventing the formation of odor and mold Another object of the present invention is to provide a vehicle air conditioner that can comfortably maintain indoor air in a car.

1 is a schematic cross-sectional view showing a blowing path of a general automotive air conditioner.

Figure 2 is a schematic cross-sectional view showing an operating state of the automotive air conditioner according to the present invention.

Figure 3 is a schematic cross-sectional view showing another embodiment of the bypass means applied to the vehicle air conditioner according to the present invention.

Figure 4 is a schematic cross-sectional view showing another embodiment of the bypass means applied to the vehicle air conditioner according to the present invention.

Figure 5 is a schematic cross-sectional view showing another embodiment of the bypass means applied to the automotive air conditioner according to the present invention.

<Explanation of symbols for the main parts of the drawings>

20 ... Temperature control door 30 ... Condensate discharge

40.Compartment wall 41 ... Aerator

42, 71 ... Aeration gap 50 ... Bypass hole

70 ... Secondary Block 80

Air Conditioning Case 101 Euro Formation Bulkhead

103 ... Purge space B ... Blower

D1 ... in / out door switch D2, D3 ... open / close door

E ... Evaporator H ... Heater Core

In order to achieve the above object, the present invention, the evaporator for cooling the air blown from the blower, the heater core for heating the air passed through the evaporator, and is installed at the inlet of the blower path of the heater core to rotate in accordance with the operator's operation Thus, the temperature control door for selectively opening and closing the air inlet of the heater core and the blowing air changed to hot and cold by the temperature control door branch into each branch duct according to the opening and closing selection to discharge to each part of the interior of the vehicle. And an air conditioning case having an inner side of the air passage opening and closing doors and a partition wall partitioning the evaporator and the heater core, and discharging the condensed water generated from the evaporator through a drain formed on the bottom surface of the air conditioning case. In a vehicle air conditioner, a part of air passing through an evaporator in a cooling mode is transferred to a heater core. The by-pass means for removing the condensate drain portion by the communication part and the drain; characterized in that comprises a.

According to the present invention, the air conditioner further comprises a bypass hole formed by configuring the length of the temperature control door to be shorter than the length of the inlet of the heater core to facilitate the inflow of a part of the air passing through the evaporator into the heater core in the cooling mode. Can be.

In addition, the bypass means may be composed of a plurality of vents formed on the partition wall so that the air passing through the heater core can flow through the partition wall toward the drain portion, and the lower end of the partition wall is configured to have an air conditioning case. It may be made of a ventilation gap formed between the bottom of the.

In addition, the auxiliary partition wall is formed so as to partition the purge space from one side of the partition wall formed with the bypass means toward the drain portion, and the lower end of the auxiliary partition wall is made short between the bottom of the auxiliary compartment wall and the bottom surface of the air conditioning case. A vent gap formed to communicate the purge space and the drain portion may be further employed.

In addition, the bypass means may be formed of a conduit that passes through the partition wall and communicates with the heater core side and the drain portion.

According to the configuration as described above, in the cooling mode, a part of the blowing air is introduced into the heater core side through the bypass hole to convert the introduced cold air into warmer and then supply the warmer to the drain through the bypass means to condensate water. By purging the condensate, the drainage of the condensate is increased and the residual condensate is evaporated. Therefore, bacteria and molds in the air conditioner are prevented from being contaminated.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

Prior to the description of the present embodiment, a brief look at the configuration of the vehicle air conditioner according to the present invention.

As shown in Figure 2, the air conditioner according to the present invention, the blower (B) and the blower (B) to selectively introduce the inside / outside air through the inside / outside air switching door (D1) and to the blower An evaporator (E) for selectively cooling the air to be blown in accordance with a cooling mode selection, a temperature control door (20) for controlling the opening degree of the blowing path of the heater core (H) according to the turning angle, and the evaporator (E) Heater core (H) for heating the blowing air passed through the selection according to the opening and closing of the temperature control door 20, the partition wall 40 formed between the evaporator (E) and the heater core (H), and the temperature It is provided with blower opening and closing doors (D2, D3) which is operable to branch the blowing air changed into hot and cold by the control door 20 to each branch duct according to the opening and closing selection to discharge to each part of the interior of the vehicle It includes an air conditioning case 100, which is formed on the bottom surface of the air conditioning case 10 In view comprising parts of the drain such that condensed water generated from the evaporator outlet via a bearing a discharge port 30, it can be seen that, not unlike the conventional air conditioner.

<Example 1>

As shown in FIG. 2, in the present embodiment, a part of the air passing through the evaporator E in the cooling mode is heated by the heater core H to communicate with the drain part in a vehicle air conditioner having the structure as described above. And bypass means for quickly removing negative condensate.

The bypass means consists of a plurality of vent holes 41 formed on the partition wall 40. In this way, the cold air introduced into the heater core (H) through the gap of the temperature control door 20 is converted to warmth, and the condensate discharge port 30 in front of the plurality of vent holes 41 formed on the partition wall 40. Discharged to the side. Therefore, the condensate is purged and discharged by the warm air blown through the vent hole 41 in the process of flowing down from the evaporator E to the condensate outlet 30 of the drain part, and the moisture of the drain part is rapidly evaporated in contact with the warmer. Can be removed.

On the other hand, as shown in Figure 3, the bypass means may be made of a ventilation gap 42 formed between the bottom surface of the air conditioning case 100 by making the lower end of the partition wall 40 short. In the method of forming the ventilation gap 42, the lower end portion of the partition wall 40 is shortened to form a predetermined gap with a bottom surface of the air conditioning case 100, and the partition wall 40 is effective for condensate water. It is preferable to form the front (evaporator side) of the condensate discharge port 30 for removal.

When the bypass means is configured as described above, the condensed water formed from the evaporator (E) flows down the drain portion and flows through the heater core (H) in the process of flowing out to the condensate discharge port (30) and is discharged through the vent gap (42). The condensate is quickly discharged to the condensate discharge port 30 by the flow rate of the warmer and all remaining condensate is evaporated.

Meanwhile, in the present exemplary embodiment, a bypass hole is provided between the temperature control door 20 and the flow path forming inner wall 101 so that a part of the cold air passing through the evaporator E in the cooling mode can be easily introduced into the heater core H. 50 may be further provided. That is, the temperature control door 20 to block the inlet of the blower of the heater core (H) in the cooling mode, and at the same time the length of the temperature control door 20 is shorter than the length of the inlet of the blower of the heater core (H) side. The bypass hole 50 may be formed between the end portion of the temperature control door 20 and the flow path forming inner wall 101 of the air conditioning case 100.

When configured as described above, a part of the cold air passing through the evaporator (E) is introduced into the heater core (H) at a high speed through the bypass hole 50, the introduced cold air is converted to warmth and the bypass It is quickly discharged to the drain portion through the means. Therefore, the condensate flowing through the drain portion is pushed toward the condensate discharge port 30 by the warm air discharged quickly, so that drainage can be improved and the remaining condensate can be evaporated more quickly.

Referring to the operation of the vehicle air conditioner of the present invention made of the above configuration as follows.

When the internal / external air switching door D1 selectively introduces internal / external air, the blower B blows air into the blower path, and the evaporator E blows the air blown by the blower B according to the cooling mode selection. Optional cooling.

In this cooling process, condensate is generated on the surface of the evaporator (E), and the condensate is collected at the bottom of the inclined evaporator (E), and all drops and flows down to the air conditioning case (100) located at the bottom to discharge the condensate outlet (30). It is discharged to outside through).

On the other hand, the blower air passing through the evaporator (E) is swiveled to block the inlet so that the blower air does not flow into the heater core (H) in accordance with the cooling mode, the blower air is each opening and closing door (D2) , D3) is blown into the room. However, part of the blowing air is always introduced into the heater core H by the bypass hole 50 formed by the temperature control door 20. The introduced air is heated while passing through the heater core (H), is supplied to the condensate discharge port 30 through the bypass means formed by the partition wall 40 formed opposite the heater core (H) and purged to the outside Discharged.

The present invention allows the condensed water to be purged and discharged by the blowing air flowing out through the path and the bypass means as described above, so that the condensed water is brought into contact with the warmth so that the condensed water can be quickly removed.

That is, when the bypass means is a vent hole 41 formed in the partition wall 40, the condensate flowing out of the evaporator E is divided into the partition wall at the condensate discharge port 30 formed in front of the partition wall 40. 40 is brought into contact with the heated warmth exiting the vent 41. In addition, when the bypass means is a ventilation gap 42 formed in the partition wall 40, the condensed water flowing out through the ventilation gap 42 comes into contact with warmth in the drain portion formed on the heater core H side. .

As such, when condensate and warmth come into contact with each other, the flow rate of the warmth pushes the condensate discharge port 30 toward the purge, so that all of the condensate flowing in can be smoothly removed within a short time. Evaporates. Therefore, condensation water is prevented from accumulating on the bottom surface of the air conditioning case 100, condensation water formed in the evaporator is removed to prevent the growth of bacteria or mold can be maintained comfortably in the vehicle air.

<Example 2>

This embodiment is another embodiment of the bypass means for removing condensate applied to the air conditioner for automobiles, the bypass means applied to this embodiment is a bypass means in the first embodiment, as shown in FIG. By forming the lower end of the auxiliary partition wall 70 extending toward the drain portion so as to partition the purge space 103 between the evaporator E and the partition wall 40 from one side of the formed partition wall 40, the auxiliary partition wall ( It is further provided with a ventilation gap 71 formed between the lower end of the 70 and the bottom surface of the air conditioning case (100).

Therefore, in the present exemplary embodiment, a plurality of vent holes 41 formed on the partition wall 40 and a vent gap 71 formed between the lower end of the auxiliary compartment wall 70 and the bottom surface of the air conditioning case 100 are provided. It is employed as a bypass means.

According to the present embodiment, the condensed water formed from the evaporator (E) flows through the air gap (71) by the auxiliary compartment wall (70) and the warmth and purge exiting the air hole (41) formed in the partition wall (40) The contact is made in the space 103. Therefore, the condensate is pushed toward the condensate discharge port 30 by the flow rate of the warm air, so that all the condensed water can be smoothly removed within a short time, and the residual condensed water is increased due to the temperature increase in the purge space 103 due to the warm air. Condensate evaporates quickly.

Accordingly, the phenomenon that the condensed water accumulates on the bottom surface of the air conditioning case 100 is prevented more quickly and efficiently than in the first embodiment, and at the same time, part of the warmth supplied to the condensed water outlet 30 by the bypass means as in the first embodiment. Is introduced into the evaporator (E) to compensate for the disadvantage that the air-conditioning efficiency of the vehicle is lowered by increasing the temperature of the evaporator side.

<Example 3>

This embodiment, as shown in Figure 5, is another embodiment of the bypass means for removing condensate is applied to the air conditioner for automobiles, the bypass means applied to this embodiment is a heater core (H) It consists of a predetermined pipe line 80 which penetrates the partition wall 40 so that the warmth which passed through may be supplied to a drain part. Therefore, the condensed water around the condensate discharge port 30 can be effectively removed by using the conduit 80 so that the intensive heat supply to the condensate discharge port 30 is possible.

When configured as described above, the condensed water formed from the evaporator (E) and flows through the drain portion to the condensate discharge port 30 passes through the heater core (H) to be in intensive contact with the warmth supplied to the drain portion through the conduit 80. As a result, the condensate can be evaporated more quickly and purged to the outside of the vehicle.

According to the air conditioner for automobiles of the present invention configured as described above, in the cooling mode, a part of the cold air passing through the evaporator is introduced into the heater core to convert the cold air into warmth and then supply the air to the drain portion through the bypass means. By discharging the condensate, the drainage of the condensate can be improved and the remaining condensate can be evaporated quickly by the warmth, thus preventing the growth of bacteria or mold inside the air conditioner, preventing pollution of the air in the car Can be maintained.

While the invention has been shown and described with respect to specific embodiments thereof, it will be understood that the invention can be variously modified and varied without departing from the spirit or scope of the invention as set forth in the claims below. It should be included in the scope of the invention.

Claims (6)

Evaporator (E) for cooling the air blown from the blower (B), the heater core (H) for heating the air passing through the evaporator, and is installed at the inlet of the blower path of the heater core to rotate according to the operator's operation The temperature control door 20 for selectively opening and closing the air inlet of the heater core and the blowing air changed to hot and cold by the temperature control door are branched into the respective branch ducts according to the opening and closing selection to each part of the interior of the car. Air-conditioning case (100) including an air-opening opening and closing doors (D2, D3) and a partition wall (40) for partitioning between the evaporator and the heater core is provided to the inside, the air-conditioning case (10) In a vehicle air conditioner for discharging condensate generated from an evaporator through a drain formed at the bottom of And bypass means for removing the condensed water from the drain by heating a portion of the air that has passed through the evaporator (E) through the heater core (H) and communicating with the drain in the cooling mode. The method of claim 1, The bypass means is a vehicle air conditioner, characterized in that a plurality of vent holes (41) formed on the partition wall (40). The method of claim 1, The bypass means is a vehicle air conditioning apparatus characterized in that the short end of the partition wall (40) is formed between the ventilation gap 42 formed between the bottom surface of the air conditioning case (100). The method of claim 2 or 3, The auxiliary partition wall 70 extending from the one side of the partition wall 40 to the drain portion so as to partition the purge space between the evaporator and the partition wall, and by forming a lower end of the auxiliary partition wall 70 short Air-conditioning device for a vehicle, characterized in that the ventilation gap 71 is further provided between the bottom of the partition wall and the bottom of the air conditioning case. The method of claim 1, The bypass means is an automotive air conditioner, characterized in that the passage (80) formed to pass through the partition wall (40) to communicate with the heater core side and the drain portion side. The method of claim 1, The temperature control door 20 has a length shorter than the length of the heater core side blower inlet so that a part of the air passing through the evaporator E to the heater core H side in the cooling mode enters the heater core side blower inlet. Automotive air conditioning apparatus, characterized in that to form a bypass hole (50).