KR19980040727U - Evaporator used for automobile air conditioner with detachable cover - Google Patents

Abstract

The present invention relates to an evaporator of an automobile air conditioner having a structure that facilitates cleaning and repair of the core of the evaporator, in case of occurrence of odors and abnormalities due to the adsorption of contaminants on the evaporator core or the evaporator core. The evaporator according to the present invention is an evaporator case is accommodated inside the evaporator core for heat and heat exchange, the outer surface has a plurality of fastening brackets, one or more side surfaces are open to other components are not coupled, the evaporator is opened And a cover fastened by a fastener to the fastening bracket to close the side surface.

Description

Evaporator used for automobile air conditioner with detachable cover

The present invention relates to an evaporator used in an air conditioner of an automobile, and more particularly, to an evaporator having a structure that can be easily repaired and cleaned when a defect occurs in the evaporator core located in the evaporator. will be.

Typically, an air conditioner in a car is used to determine the temperature (heating and cooling), humidity (humidification or humidity), cleanliness (filtration) and dispersion (circulation) of air in an enclosed space, such as in a car, depending on the purpose of the space in the car. It is a device that performs at the same time, the air conditioner of the vehicle includes a cooling device and a heating device (if a heater). The air conditioner has a function of lowering the air temperature and humidity in the car by being used in summer when the air temperature and humidity are high, and the heating device has a function of increasing the temperature and humidity in the car by being used in winter when the temperature and humidity are relatively low. .

Automotive air conditioners typically consist of a refrigerant compressor, condenser, receiver, expansion valve, evaporator, condenser fan and evaporator fan. The air conditioner of an automobile operates on the same operating principle as a conventional steam compressed refrigerator.

Refrigerant compressors, which are mainly used in the summer, are operated by engines in the case of automobiles. When the switch is turned on, the electronic clutch connected to the switch, the condenser fan, the high pressure sensor and the low pressure sensor installed in the receiver, and the temperature sensor are operated. By the on operation of the switch, the electromagnetic clutch connects the compressor to the engine of the automobile, and the compressor receives the power of the engine to compress the refrigerant into a high-pressure gas state.

The refrigerant compressed to a high-pressure gas is sent to the condenser through piping connected to the compressor. The refrigerant condenses into a high pressure liquid in the condenser and is sent to the receiver. In the receiver, the refrigerant is dehumidified and the pressure is sensed by the high pressure sensor and the low pressure sensor. The high pressure sensor detects the high pressure refrigerant pressure coming from the condenser to the receiver, and the low pressure sensor senses the pressure of the refrigerant sent from the receiver to the expansion valve. The pressure signal sensed by the sensors is input to the ECU.

The refrigerant maintained at a constant pressure through the receiver is sent to the expansion valve, and the refrigerant passes through the expansion valve to a low temperature, low pressure liquid and is sent to an evaporator installed in the vehicle.

The refrigerant entering the evaporator is sensed by the temperature sensor and, while passing through the evaporator, is converted to a low pressure gas state, and the surrounding hot air blown by the condenser fan heat exchanges with the refrigerant in the evaporator while passing through the evaporator. At the same time as it is cooled, it is sent into the car by an evaporator fan. The refrigerant enters a low pressure gas state while passing through the evaporator and is sent to the compressor for continuous circulation in the air conditioner.

Meanwhile, the saturated water contained in the air is condensed and humidified in the evaporator, and the condensed water condensed at the evaporator surface is collected in a drip tray located under the evaporator and discharged to the outside of the vehicle through a hose connected to the drip tray.

1 is a perspective view illustrating a coupling relationship between a conventional evaporator used in an automobile air conditioner and a heater unit and a blower unit assembled to an evaporator. As shown in FIG. 1, the heater unit 2 and the blower unit 3 are respectively coupled to the evaporator 1 at both sides of the evaporator 1. The heater unit 2 is blown from the blower unit 3 in the winter, the air temperature is low, and heats the air passing through the evaporator 1, the air heated by the heater unit 2 by the blower unit (3) It is blown into car.

Inside this evaporator 1 an evaporator core 4 is provided for increasing the contact area with the air so as to increase the heat exchange efficiency with the air passing while the air passes through the evaporator 1. The evaporator core 4 may adsorb various components contained in the air while the air passes through the evaporator 1, and the adsorption of various components in the air on the evaporator core 4 may be carried out during heating or cooling in the vehicle. It can pollute the air in your car and cause bad smell.

However, since the conventional evaporator is combined with the heater unit and the blower unit before and after the evaporator as described above and shown in Fig. 1, when an abnormality of the evaporator occurs, separation of the heater unit and the blower unit assembled to the evaporator is followed. In addition, there was no clear way to eliminate the odors caused by the adsorption of contaminants on the inside of the evaporator or on the evaporator core.

Accordingly, an object of the present invention is to provide an evaporator of an automotive air conditioner having a structure that is easy to clean and repair the core of the evaporator, in case of occurrence of an odor due to the adsorption of contaminants in the evaporator or in the evaporator core. have.

1 is a perspective view showing a coupling relationship between a conventional evaporator used in an automobile air conditioner and a heater unit and a blower unit assembled to an evaporator.

2 is a perspective view showing a schematic structure of an evaporator having a detachable lid according to the present invention;

* Description of the symbols for the main parts of the drawings *

1: evaporator 4: evaporator core

5: fastening bracket 6: evaporator case

8 cover 9 switch

The above object is, in the evaporator used in the air conditioner of the vehicle, the evaporator core for heat exchange with the air is received therein, one or more side surfaces having a plurality of fastening brackets on the outer surface, other parts are not coupled An evaporator case being opened; It is achieved by the evaporator of the automotive air conditioner according to the present invention, characterized in that it comprises a cover fastened by a fastener to the fastening bracket to close the open side surface of the evaporator.

According to the evaporator of the automobile air conditioner according to the present invention having the structure as described above, at least one side surface of the transmission case is opened, the open side surface is closed by a cover when used normally, the abnormality inside the evaporator Alternatively, in the case of odor generated by adsorption of contaminants on the evaporator core, it may be separated from the evaporator for repair and cleaning of the evaporator.

EXAMPLE

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

2 is a perspective view showing a schematic structure of an evaporator having a detachable lid according to the present invention. As shown in FIG. 1, the evaporator 1 of the automotive air conditioner according to the present invention has an evaporator core 4 for receiving heat and heat exchange therein and has a plurality of fastening brackets 5 on an outer surface thereof. It also has an evaporator case 6 in which one or more side surfaces are opened to which other parts such as heater units or blower units are not coupled. The number of open side surfaces 7 provided in the evaporator case 6 can be determined depending on the situation in the design of the motor vehicle.

The open side surface 7 of this evaporator case 6 is closed by a cover 8 which is fastened to a fastening bracket 5 by a detachable fastener such as a bolt. The cover 8 is preferably made of the same material as the evaporator case 6.

According to the evaporator of the automotive air conditioner according to the present invention as described above, since the cover for closing the side opening surface in the transmission case in which one or more side surfaces to which other parts are not coupled can be separated from the evaporator, the evaporator When an odor is generated due to an abnormality in the interior or the adsorption of contaminants on the evaporator core, there is an advantage that the repair and cleaning can be easily performed without separating other parts for repair and cleaning of the evaporator.

Claims (1)

An evaporator used in an air conditioner of an automobile, comprising: an evaporator case having an evaporator core for heat exchange with air, having a plurality of fastening brackets on the outer surface, and opening at least one side surface to which other parts are not coupled; ; And a cover which is fastened by a fastener to the fastening bracket to close the open side surface of the evaporator.