KR20000003008A - Odor eliminating device in refrigerator - Google Patents

Abstract

PURPOSE: An odor eliminating device in a refrigerator is provided to solve the complicated problem to replace a deodorant with a new one and to sterilize the preserved food through the generation of ozone. CONSTITUTION: The refrigerator comprises:a circulating duct formed on the both sides and rear inside of a housing; a circulating fan for forcibly circulating the mist generated from a humidifier into each part of the refrigerating chamber; an ozone generating piece for generating the infrared rays of a particular wave length; and anion generating piece placed near the circulating fan, for generating the anion to convert the ozone circulated according to the control signal generated from a microcomputer, into the oxygen.

Description

Removal device of bad smell in refrigerator

The present invention relates to a cold air circulation structure of the refrigerator, and more particularly, to an apparatus for removing odors in a refrigerator to remove odors by adding ozone (O ₃ ) to the cold air circulation process in order to remove odors generated in a refrigerator compartment. .

In general, the refrigerator forms an internal cooling structure as shown in FIG. 1, which includes an evaporator 3 that cools the surrounding air by a circulation process of a refrigerant (not shown), and the evaporator ( The fan 2 which blows the air cooled by 3) and forcibly circulates to the freezer compartment 1 and the refrigerator compartment 6-8 side, and the cooling air forcibly blown by the said fan 2 to the refrigerator compartment 6-8 side. In order to distribute air between the cold air circulation cylinder 5A and the inside of the refrigerating chamber 6-8 and the cold air circulation cylinder 5A, which are connected to both sides of the housing and the rear surface of the refrigerator compartment 6-8, It consists of a cold air discharge port 5 for blowing the cooling air delivered through the cold air circulation cylinder (5A) into the refrigerating chamber (6-8).

Looking at the cold air circulation process by the internal cooling structure of the refrigerator configured as described above, the cold air generated in the evaporator (3) is circulated by the fan (2) to the freezer compartment (1) and the refrigerating chamber (6 to 8), the temperature in the refrigerator In the refrigerator compartment along the cold air circulation cylinder 5A in which cold air generated in the evaporator 3 and discharged by the fan 2 is installed in the refrigerator compartments 6-8. In the direction of the arrow.

That is, the cold air discharged through the cold air discharge ports 5 formed on the three surfaces of the refrigerating chambers 6 to 8 is returned to the evaporator 3 side by the cold air intake port (not given the reference number), recooled, and then described above. The cycling process as described above will be redone.

Therefore, according to the circulation structure of the cold air as described above, the freezer compartment 1 and the refrigerating compartments 6 to 8 maintain a specific temperature for each part, but the refrigerating compartment 1 maintains a state of about -19 ° C. In the refrigerating chamber, the flavor cold chamber (8: used for storing fish or meat) close to the freezing chamber 1 is maintained at approximately -1 ° C to 1 ° C. In addition, the vegetable chamber 6 maintains 2 ° C to 3 ° C, and the other part of the refrigerating chamber, that is, the food chamber 7, maintains about 1 ° C to 3 ° C.

At this time, in the refrigerator operating as described above, since the cold air having low absolute humidity is continuously circulated, the inside of the refrigerator compartment is kept very dry.

Therefore, the freshness of foods (especially vegetables, fruits, ...) is usually maintained for a long time only when a certain amount of moisture is maintained, but rather as the circulating air inside the refrigerating chamber is very dry as described above, the refrigerating chamber (6 to 8). The moisture stored in the food) is also deprived of moisture in the internal air during the circulation of dry cold air, so that the freshness of the stored food is not maintained for a long time, but rather, the freshness of the stored food is sharply dropped.

As shown in FIG. 2, which has been proposed in order to solve this problem, the evaporator 3 which cools the surrounding air by the circulation process of the refrigerant, and the evaporator 3 which is cooled in the The fan 2 which blows air and forcibly circulates to the freezer compartment 1 and the refrigerating chamber 6, 7 side, and the refrigerating compartment 6 for delivering cooling air forcibly blown by the fan 2 to the refrigerating chamber 6, 7 side. 7) the cold air circulation duct 10 formed inside the rear of the housing, the air circulation duct 10 is formed for the air circulation of the inside of the refrigerating chamber (6 to 8) and the cold air circulation duct (10) A cold air discharge port 5 for blowing cooling air delivered through the refrigerator compartments 6 and 7, humidifiers 12 and 13 provided at predetermined positions of the refrigerator compartments 6 and 7 and generating mist; The refrigerator compartment 6, 7 housing separately from the cold air circulation duct 10. Humidification ducts (11) connected to both sides and the rear side, and a humidification fan (9) formed in the humidification ducts (11) and for forcibly circulating mist generated in the humidifiers (12, 13) to each part of the refrigerating chamber (9). And a humidifier which is formed on one side of the refrigerating compartment 6 and 7 for air distribution of the refrigerating chamber 6 and 7 and the humidification duct 11, and is transmitted through the humidifying duct 11. A humidifying circulation discharge port 5B for blowing air into the refrigerating chambers 6 and 7 and a refrigerator compartment 6 formed in one side of a housing inside the refrigerating chambers 6 and 7 in which the humidifying circulation discharge port 5B is not formed. And 7) a humidifying circulation inlet 5C which performs air circulation from the inside to the humidifying duct 11.

At this time, the humidifier (12, 13) is composed of a water tank 13 for storing the water to be converted into mist, and an ultrasonic vibrator 12 for converting the water stored in the water tank 13 into a mist state do.

In addition, the humidification fan 9 is to use a cross flow (in-house) stirring fan.

Referring to the air circulation process of the refrigerator illustrated in FIG. 2, the cold air generated by the evaporator 3 and discharged by the fan 2 is along the cold air circulation duct 10 installed in the refrigerating chambers 6 and 7. It is transmitted to the refrigerating chambers 6 and 7 and discharged into the refrigerating chambers 6 and 7 in the direction of the arrow through the discharge holes 5 formed in the cold air circulation duct 10.

Therefore, the cold air discharged through the discharge hole 5 is circulated through the humidifying circulation discharge port 5B and the humidifying circulation suction port 5C along the humidifying duct 11 as the humidification fan 9 is driven. Plunging to lower the temperature of each part of the refrigerator compartment (6, 7).

In addition, regardless of the operation of the humidifiers 12 and 13, the humidification fan 9 is driven according to the control signal operation of the controller (not shown). When the humidifiers 12 and 13 do not operate, the humidifying air is operated. It is used as a function for circulation of cold air, rather than the circulation function of, and when the humidifiers 12 and 13 operate, in addition to the function for circulation of cold air, the mist generated in the humidifiers 12 and 13 is stored in the refrigerating chamber 6 and 7. ) It is supplied to each part to keep the humidity inside the fridge uniformly.

As described above, by providing the refrigerator illustrated in FIG. 2, the humidity in the refrigerator compartment can be kept constant, so that the freshness of the refrigerated food can be maintained for a long time. However, any of the conventional refrigerators described above is generated in the refrigerator compartment. There was no technical means to remove the odor.

Therefore, consumers put deodorant to remove odors in the refrigerating chamber.Deodorizing effect is deteriorated after a certain time due to the nature of the deodorant, and the user has to check frequently or replace the deodorant with a new one every time. The problem was presented.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a odor removing device in a refrigerator to remove odor by adding ozone (O ₃ ) to the cold air circulation process in order to remove odor generated in the refrigerating chamber. There is.

1 is a side cross-sectional view illustrating a cold air circulation process in a conventional refrigerator

Figure 2 is a schematic illustration for explaining a refrigerator having a conventional humidifier and the resulting duct structure

Figure 3 is a schematic illustration for explaining a refrigerator having an ozone generating and reducing device according to the present invention and a duct structure according to it

4 is an exemplary diagram of an electronic control configuration for controlling the ozone generating and reducing device in FIG.

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

1: freezer 2: fan

3: evaporator 4: precooler

5: cold air discharge port 5A: cold air circulation cylinder

5B: humidification circulation inlet 5C: humidification circulation inlet

6: vegetable room 7: food room

8: taste cold room 9: humidification fan

10: cold air circulation duct 11: humidification duct

12: ultrasonic vibrator 13: water tank

100A: ozone generator 100B: ozone reducer

INV1, 2: Inverter RLY1, 2: Relay element

200: micom

A feature of the present invention for achieving the above object is, in a refrigerator capable of forced circulation of the cold compartment cold air, provided with an ozone generating means and an ozone removing means on one side of the refrigerating compartment and driving the ozone generating means during the circulation of cold air forced circulation The first step of supplying ozone to each part of the refrigerating chamber by piggybacking the cold air, and stopping the operation of the ozone generating means after driving the first step for a predetermined time and driving the ozone removing means to remain in the refrigerating chamber. And a second process for removing ozone.

Another feature of the present invention for achieving the above object is a fan for cooling the air in the evaporator to cool the surrounding air by the circulation process of the refrigerant forcibly circulating to the freezer compartment and the refrigerating chamber side, and forced air blowing from the fan In a refrigerator having a cold air circulation duct formed inside the rear side of the refrigerating compartment housing to deliver cooling air to the refrigerating compartment and a cold air discharge port for blowing the delivered cooling air into the refrigerating compartment:

A circulation duct connected to both side surfaces and a rear surface of the refrigerating compartment housing separately from the cold air circulation duct, a circulation fan formed inside the humidification duct, for circulating mist generated in the humidifier to each part of the refrigerating compartment, and Ozone generating means for generating infrared rays of a specific wavelength for converting oxygen in the air into ozone by a driving voltage input, which is located in the vicinity of the circulation fan to a cold air discharge port side for discharging cold air from the circulation fan to the refrigerating chamber side, and a predetermined amount; It includes a microcomputer for driving the ozone generating means for a predetermined time period.

An additional feature of the present invention for achieving the above object is that the wavelength of the infrared radiation emitted from the ozone generating means to use 184.9nm.

Additional features of the present invention for achieving the above object is located in the vicinity of the circulation fan to the cold air inlet side for introducing the cold air from the refrigerating chamber to the circulation fan side is present in the cold air circulated in accordance with the control signal output from the microcomputer It further comprises an ozone reduction means for generating infrared rays of a specific wavelength for converting ozone into oxygen.

An additional feature of the present invention for achieving the above object is that the wavelength of the infrared radiation emitted from the ozone reduction means to use 253.7nm.

Additional features of the present invention for achieving the above object is located in the vicinity of the circulation fan to the cold air inlet side for introducing the cold air from the refrigerating chamber to the circulation fan side is present in the cold air circulated in accordance with the control signal output from the microcomputer It further comprises an anion generating means for generating an anion to convert ozone into oxygen.

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

The evaporator 3 cools the surrounding air by the circulation process of the refrigerant, and the fan 2 forcibly circulating the air cooled by the evaporator 3 to the freezer compartment 1 and the refrigerating compartment 6, 7. And a cold air circulation duct 10 formed inside the rear surface of the refrigerating chambers 6 and 7 to deliver cooling air forcedly blown from the fan 2 to the refrigerating chambers 6 and 7 and the refrigerating chambers 6 to 7. 8) The cold air discharge port 5 which is formed for air distribution of the inside and the cold air circulation duct 10 and blows the cooling air delivered through the cold air circulation duct 10 into the refrigerating chambers 6 and 7. And a humidifier (not shown) provided at a predetermined position of the refrigerating chambers 6 and 7 and generating both mist and inside the refrigerating chamber 6 and 7 housings separately from the cold air circulation duct 10. Humidity duct 11 is formed in connection with the inside of the humidification duct 11 And a humidification fan 9 for forcibly circulating mist generated in the humidifier to each part of the refrigerating chamber, and inside the refrigerating chamber 6 and 7 and the humidifying duct on one side of the refrigerating chamber 6 and 7 housing. A humidification circulation discharge port 5B which is formed for air distribution of 11) and blows humidified air delivered through the humidification duct 11 into the refrigerating chamber 6 and 7, and the humidification circulation discharge port 5B. And a humidification circulation inlet 5C which is formed at one side of the refrigerating chamber 6 and 7 in which the refrigerating chamber 6 and 7 is not formed, and performs air circulation from the inside of the refrigerating chamber 6 and 7 to the humidification duct 11, and the humidification. An ozone generator 100A positioned near the humidifying fan 9 toward the circulation discharge port 5B and generating infrared rays of a specific wavelength (184.9 nm) for converting oxygen in the air into ozone by an input driving voltage, and Humidification circulation inlet (5C) To consist of the humidification fan (9) ozone reduction group (100B) which generates infrared light of a specific wavelength (253.7nm) for location in the vicinity, and to convert the ozone by a driving voltage which is input to the oxygen.

In addition, although not shown, a microcomputer is provided for controlling the operation of the ozone generator 100A and the ozone reducer 100B and the overall operation of the refrigerator. The connection between the microcomputer and the ozone generator 100A and the ozone reducer 100B is provided. Referring to Figure 4 attached to the configuration as follows.

FIG. 4 is an exemplary view of an electronic control configuration for controlling the ozone generating and reducing device in FIG. 3, to convert oxygen existing in cold air circulated through the humidifying duct by the humidification fan 9 to ozone when a voltage is input. An ozone generator 100A for generating infrared rays with a wavelength of 184.9 nm, a first inverter INV1 for inverting and outputting an input square wave control signal, and an ON operation when the output signal of the first inverter INV1 is low And ozone present in the cold air circulated through the humidification duct by the humidification fan 9 when the voltage is input, and the first relay element RLY1 connecting a path through which commercial power is supplied to the ozone generator 100A. The ozone reducer 100B generating infrared rays having a wavelength of 253.7 nm for reduction, the second inverter INV2 for inverting and outputting the square wave control signal input, and the output signal of the second inverter INV2 are low. Work The second wave element RLY2 which connects a path for supplying commercial power to the ozone reducer 100B by being turned on, and a square wave inverted to each other at a specific cycle in the first inverter INV1 and the second inverter INV2 It is composed of a microcomputer 200 for input.

Referring to the operation of the odor removing device in the refrigerator according to the present invention configured as described above, the cold air generated in the evaporator (3) and discharged by the fan (2) is a cold air circulation duct installed in the refrigerating chamber (6, 7) ( 10 is delivered to the refrigerating chambers 6 and 7 and discharged into the refrigerating chambers 6 and 7 in the direction of the arrow through the discharge holes 5 formed in the cold air circulation duct 10.

Therefore, the cold air discharged through the discharge hole 5 is circulated through the humidifying circulation discharge port 5B and the humidifying circulation suction port 5C along the humidifying duct 11 as the humidification fan 9 is driven. Plunging to lower the temperature of each part of the refrigerator compartment (6, 7).

When the microcomputer 200 determines that the humidity of the refrigerating chamber has dropped below a predetermined level in the process of performing the above-described process, the humidifier 130 performs a humidification operation when it outputs a high state signal through the third port p3. do.

In addition, at any point in time to remove the odor of the refrigerating chamber (for example, a 5-hour cycle), a high signal is applied to the first inverter INV1 to generate ozone. Accordingly, the first relay RLY1 is turned on and the ozone generator 100A emits infrared rays of 184.9 nm wavelength.

Oxygen present in the cold air circulated through the humidification duct by the humidification fan 9 by infrared rays of 184.9 nm wavelength emitted from the ozone generator 100A is converted into ozone and discharged through the humidifying circulation discharge port 5B. It is supplied to each part of the refrigerating chambers 6 and 7 by piggybacking on the circulating air which flows in through the humidification circulation inlet 5C.

Therefore, to remove the odor present in the refrigerating chamber and perform functions such as food sterilization.

Thereafter, driving of the ozone generator 100A is stopped to prevent the concentration of ozone in the cold air in the refrigerator being excessively increased due to the operation of the ozone generator 100A for a predetermined time (for example, about 30 minutes). For example, the high state signal applied to the first inverter INV1 is switched to the low state so that the first relay RLY1 is turned off.

When the ozone generator 100A stops operating as the first relay RLY1 is turned off, the microcomputer 200 sends a high signal to the second inverter INV2 through the second port p2. Walked. Accordingly, the second relay RLY2 is turned on and the ozone reducer 100B emits infrared rays having a wavelength of 253.7 nm.

Ozone present in the cold air circulated through the humidification duct by the humidification fan 9 by the infrared ray of 253.7 nm wavelength emitted from the ozone reducer 100B is converted into oxygen and discharged through the humidifying circulation discharge port 5B. .

The operation of the ozone reducer 100B as described above also ends after a certain period of time (for example, about 30 minutes) like the ozone generator 100A.

In the above-described embodiment, an ozone reducer 100B that emits infrared rays having a wavelength of 253.7 nm is used for the reduction of ozone. However, as another embodiment, an anion generator may be used.

Deodorizing effect in the refrigerator according to the present invention operates as described above by deodorant in the conventional refrigerator compartment to remove the odor deodorant effect is deteriorated after a certain period of time deodorizing effect is the user frequently check or every fixed time Since the deodorant must be replaced with a new one, there is an effect of eliminating the troublesome problem.

Moreover, there is an effect that sterilization of the stored food can be performed through the generation of ozone.

Claims (1)

A fan that cools the air cooled in the evaporator that cools the surrounding air by the circulation process of the refrigerant and forcibly circulates it to the freezer compartment and the refrigerating compartment side, and inside the rear side of the refrigerating compartment housing to deliver the cooling air forced by the fan to the refrigerating compartment side. In a refrigerator having a cold air circulation duct formed and a cold air discharge port for blowing the delivered cooling air into the refrigerating compartment: A circulation duct connected to both side surfaces and a rear surface of the refrigerating compartment housing separately from the cold air circulation duct; A circulation fan which is formed inside the humidifying duct and forcibly circulates mist generated in the humidifier to each part of the refrigerating chamber; Ozone generating means located in the vicinity of the circulation fan toward the cold air discharge port for discharging cold air from the circulation fan to the refrigerating chamber and generating infrared rays having a specific wavelength for converting oxygen in the air into ozone by an input driving voltage; Anion which is located in the vicinity of the circulation fan at the cold air inlet side for introducing the cold air from the refrigerating chamber to the circulation fan side and generates anions to convert ozone present in the cold air circulated according to the control signal output from the microcomputer to oxygen. Generating means; And An apparatus for removing odors in a refrigerator, characterized in that it comprises a microcomputer for driving the ozone generating means and the anion generating means for a predetermined time period.