KR100591622B1 - Refrigerator - Google Patents

Abstract

An object of the present invention is to maintain the freshness by anion of food stored in a refrigerator, so that an effect can be obtained without continuously operating an anion generator.

The period during which the door opening / closing detection device 3 controls the negative ion generator 1 to be turned on when the control device 4 detects that the refrigerator door 2 is opened, so that various bacteria are easily introduced into the outside air. Only kill the bacteria by operating the negative ion generator. This saves on electric charges and extends the actual life of the anion generator rather than constantly operating the anion generator while maintaining the freshness maintaining effect of the food in the food.

Controller, door open / close detection device, refrigerator door, negative ion generator, air curtain

Description

Refrigerator {REFRIGERATOR}

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the state which opened the door of the refrigerator of 1st Embodiment of this invention.

Fig. 2 is a functional block diagram of the negative ion generator control device of the embodiment described above.

3 is a flowchart of negative ion generator control by the negative ion generator control device of the above-described embodiment.

Fig. 4 is a flowchart of another negative ion generator control by the negative ion generator control device of the above-described embodiment.

Fig. 5 is a front view of the door of the refrigerator of the second embodiment of the present invention in an open state.

6 is a functional block diagram of the anion generator control device of the above-described embodiment.

Fig. 7 is a side view of the refrigerator terminal of the third embodiment of the present invention.

8 is a functional block diagram of the anion generator control device of the above-described embodiment.

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

1: negative ion generator

2: cold storage door

3: door switch

4: control device

5: fan

7: air curtain

10: refrigerator

33: outer box

34: inner box

37: refrigerator

The present invention relates to a refrigerator having an anion generator.

Conventionally, in a refrigerator provided with an anion generator in a refrigerator, since the lifetime of the anion generator becomes too short when it is operated continuously for a certain time, the life of the anion generator is ensured by controlling on / off at regular time intervals.

[Patent Document 1]

Japanese Patent Laid-Open No. 2003-42645

[Patent Document 2]

Japanese Patent Laid-Open No. 2003-121050

By the way, in the conventional negative ion generator control technology for refrigerators, for example, the negative ion generator operates at a predetermined time interval even at night when a person is sleeping, but the refrigerator door is rarely opened at that time, and thus, invasion of germs into the high place. Although there is also a very small chance of operating the negative ion generator, there is a problem in that it consumes unnecessary power by the operation of the negative ion generator, and there is a problem that the lifetime of the negative ion generator is too short.

SUMMARY OF THE INVENTION The present invention has been made in view of these conventional technical problems, and in maintaining freshness due to negative ions of food stored in a refrigerator, it is possible to obtain an effect even if the anion generator is not operated continuously, thereby reducing electric charges compared to continuous operation. It is also an object of the present invention to provide a refrigerator which can also extend the life of the negative ion generator.

The refrigerator according to claim 1 includes an anion generator provided in a refrigerator, a door opening / closing detection device for the refrigerator, and a control device for controlling the negative ion generator on / off, and the control device detects the door opening and closing. When the device detects that the door of the refrigerator is opened, the negative ion generator is turned on.

In the refrigerator according to claim 1, when the door open / close detection device detects that the refrigerator door is opened, the negative ion generator is controlled to be turned on to operate the negative ion generator only during a period where the bacteria are easily introduced into the outside air. Kills. As a result, the electric charge is suppressed and the actual life of the anion generator is extended, rather than always operating the anion generator continuously while maintaining the freshness maintaining effect of the food in the food.

The refrigerator according to claim 2, wherein the refrigerator has an anion generator installed in the refrigerator and rotates the fan when the door of the refrigerator is opened so that cold air flows between the food in the refrigerator and the outside air so that the food in the refrigerator directly touches the outside air. And an air curtain device to block the negative ion generator, and a control device to control on / off of the negative ion generator, wherein the control device operates the negative ion generator in conjunction with the operation of the air curtain device.

In the refrigerator according to claim 2, while the refrigerator door is opened and the air curtain device is operating, the negative ion generator is operated in conjunction with the air curtain device so that the bacteria are attracted by the air curtain only during a period where the bacteria are easily introduced together with the outside air. It suppresses an increase in the temperature inside the refrigerator and at the same time operates an anion generator to kill various bacteria. Thereby, while raising the freshness maintaining effect of food in food, it is possible to restrain electric charges and to extend the real life of anion generator rather than always operating anion generator continuously.

The invention according to claim 3, wherein in the refrigerator according to claim 1, the control device continuously operates the negative ion generator for a predetermined time after detecting that the door of the refrigerator is closed by the door open / close detection device. By doing so, the negative ion generator is continuously operated for a certain time even after the refrigerator door is closed to kill as many germs as introduced into the refrigerator at the time of opening the door. Thereby, rather than always operating an anion generator continuously, electric charges are suppressed, the lifetime of an anion generator is extended, and the freshness maintenance effect of food in food is maintained.

According to the invention of claim 4, in the refrigerator of claim 1, the control device turns on the negative ion generator when it detects that the door of the refrigerator is opened by the door open / close detection device, and the open state of the door is constant. The negative ion generator is turned off when it continues for more than one hour. In normal use, the door opening time is short for several tens of seconds. This eliminates waste for long hours of continuous operation, reducing power consumption and extending the life of the negative ion generator.

According to the invention of claim 5, in the refrigerator of claim 1, when the control device detects that the door of the refrigerator is opened by the door opening / closing detection device, the negative ion generator is irrespective of the opening / closing state of the subsequent door. It is characterized by continuing to turn on for a certain period of time, which simplifies the control of the anion generator and suppresses electric charges rather than always operating the anion generator continuously, and also extends the actual life of the anion generator.

The invention according to claim 6 is characterized in that a plurality of negative ion generators are arranged, and it is possible to evenly distribute negative ions to every corner of the refrigerating space, thereby killing the germs of the entire refrigerating space, thereby improving the freshness of the food in the refrigerator. The retention effect can be greatly increased. In addition, it is characterized in that a plurality of negative ion generators are operated and controlled in different operation modes, so that negative ions required at a necessary place can be generated when necessary, thereby reducing electric charges and extending the actual life of the negative ion generator.

The invention of claim 7 is a period in which at least one anion generator is controlled to be turned on when the door open / close detection device detects that the refrigerator door is opened, so that various bacteria are easily introduced into the outside air. Only kill the bacteria by operating the negative ion generator. This suppresses electric charges and keeps the actual life of the negative ion generator more than keeping the negative ion generator constantly operating while maintaining the freshness maintaining effect of the food in the food.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing. 1 and 2 show a refrigerator 10 according to an embodiment of the present invention. The refrigerator compartment of this refrigerator 10 is equipped with the negative ion generator 1, the refrigerator compartment door 2, and the refrigerator compartment door switch 3. As shown in FIG. In place of the refrigerator 10, for example, a bottom part and a rear part, a refrigeration cycle control device for performing refrigeration and refrigeration cycle control is provided, and a control device 4 for controlling on / off of the negative ion generator 1 is provided. have.

The refrigerating compartment door switch 3 operates by the opening / closing operation of the refrigerating compartment door 2, and inputs an open / close signal to the control device 4. The control apparatus 4 controls the negative ion generator 1 on / off under the conditions shown in FIG.

That is, when the open signal of the door switch 3 is input (step S1), it is determined whether this open signal is continuing or is currently input (step S3). And if it is determined that it is open now, the timer A is started for a fixed time (for example, 10 minutes), and the negative ion generator 1 is turned on (step S5, step S7). Thereafter, the process branches to YES in step S9 until the time count of the timer A reaches 10 minutes, and the negative ion generator 1 is continued to operate (steps S1-S3-S9-S7).

And if the door open signal continues for 10 minutes in the state where the refrigerator compartment door 2 is opened, it will branch to NO in step S9, and the negative ion generator 1 will be stopped (steps S1-S3-S9-S17).

On the other hand, when the closing signal (the open signal disappears) of the door switch 3 is input, the control apparatus 4 branches to NO in step S1, and determines whether the closing signal is continuing or is closed now (step S11). If it is determined in this determination that it is now closed, the timer B is started for another constant time (for example, 10 minutes). Even after this, when the state in which the door 2 is closed continues, the negative ion generator 1 continues to operate only for 10 minutes (steps S1-S11-S15-S7). When the timer B elapses for 10 minutes after the door 2 is closed, the negative ion generator 1 is stopped (steps S1-S11-S15-S17).

Thus, according to the negative ion generator control device for refrigerators of the first embodiment, when the refrigerating compartment door 2 is opened, the negative ion generator 1 receives various bacteria, molds, and the like which invade into the air together with the outside air by operating the negative ion generator 1. The freshness of the food in the refrigerating compartment can be maintained, and the operation of the negative ion generator 1 can be limited to a certain period of time, thereby suppressing electric charges compared to continuous operation and extending its real life.

In addition, in this embodiment, when the refrigerating compartment door 2 continues to open for 10 minutes or more, it is regarded as abnormal use, and forcibly stops the negative ion generator 1, and the electric power by operating the negative ion generator 1 for a long time unnecessarily. The consumption of can be suppressed.

In addition, according to the refrigerator of the present embodiment, once the refrigerating compartment door 2 is closed, the negative ion generator 1 is continuously operated for 10 minutes by another timer B. Even if it remains in the refrigerator, it can be removed by the operation of the negative ion generator 1 and the freshness of the food can be maintained. In addition, since the operation time of the negative ion generator 1 is limited only when necessary, compared with continuous operation, an electric charge can be suppressed and a real life can be extended.

In addition, in order to simplify control in this embodiment, the control which operates the negative ion generator 1 only while the refrigerating compartment door 2 is opened, and stops the negative ion generator 1 when the door 2 is closed. You can do

In addition, as shown in the flowchart of FIG. 4, once the door 2 is opened, the timer A is operated to operate the negative ion generator 1 for a predetermined time (for example, 10) regardless of the subsequent opening / closing state of the door 2. It can also be set to control to operate only (minute) (step S21 to step S27). The opening time of the door 2 of the refrigerator 10 is tens of seconds even if it is long in normal use, and it can be considered that it is not normal use to continue to open for a long time longer, so the freshness of the food by the negative ion generator 1 By limiting its operating time with the maintenance of, it is possible to suppress unnecessary power consumption.

In addition, the time limit of the timer A and the timer B is not limited to 10 minutes, and can be changed in a short and long periods based on the characteristics of the refrigerator.

Next, the negative ion generator control device for refrigerators of 2nd Embodiment of this invention is demonstrated using FIG. The feature of the second embodiment is that the anion generator 1 installed in the refrigerator of the refrigerator 10 and the fan 5 are rotated when the door 2 of the refrigerator 10 is opened, and the cold air is extracted from the food and the outside of the refrigerator. And an air curtain function for making an air curtain 7 which blocks the food in the refrigerator from coming into direct contact with the outside air, and a control device 4 for controlling the negative ion generator 1 on / off. (4) operates the negative ion generator 1 in conjunction with the operation of the air curtain fan 5.

As a result, in the second embodiment, the air curtain function can suppress an increase in the internal temperature due to the inflow of outside air at the time of opening the door, and also prevent the invasion of various bacteria and molds by the operation of the negative ion generator 1. Therefore, the food freshness can be effectively maintained. In addition, the electric charge can be suppressed compared with the case where the negative ion generator 1 is operated continuously.

Next, the anion generator control device for refrigerators of 3rd Embodiment of this invention is demonstrated using FIG. As for the characteristic of 3rd Embodiment, the some negative ion generator 31 and 32 are provided in the inside of the refrigerator 30. As shown in FIG.

In Fig. 7 showing a longitudinal side view of the refrigerator, the refrigerator main body 30 is formed in a rectangular box shape in which the front face is opened, and a heat insulating material such as urethane foam is formed between the outer box 33 and the inner box 34. 35) is formed on the basis of filling. In addition, a partition plate (refrigeration chamber bottom plate) 36 made of synthetic resin is fixed to the inner surface of the inner box. The partition plate 36 forms a refrigerating chamber (storage chamber) 37 in the upper part of the refrigerator main body 30 and a vegetable chamber 38 in the lower part of the refrigerator main body 30, and the refrigerating chamber door 39 is rotatable at the front end of the refrigerating chamber 37. It is installed.

A cold air passage is formed between the ceiling surface 42 of the refrigerating compartment 37 and the inner box 34, and the cold air from the refrigerating compartment cooler 43 is introduced into the duct on the rear surface of the refrigerating compartment by the fan 44. It is configured to circulate into the refrigerating chamber 37 from the outlet and to circulate the cold air to the refrigerating chamber door 39 side from the cold air passage of the ceiling. The first negative ion generator 31 is arranged in this ceiling. The circulating cold air of the uppermost stage of the refrigerating chamber 37 passes from the refrigerating chamber upper space to the lower space after passing through the first anion generator 31.

Below the partition plate 36, the support plate 40 is fixed at predetermined intervals. The front end side of the partition plate 36 is open, so that cold air can be guided from the refrigerating chamber 37 side to the cold air passage (circulation passage) 41 formed between the partition plate 36 and the support plate 40. The second negative ion generator 32 is disposed in the cold air passage 41. The rear end side of the support plate 40 is opened to the vegetable chamber 38 so that the circulating cold air introduced into the cold air passage 41 from the refrigerating chamber 37 side passes through the second anion generator 32 and then the vegetable chamber 38. It is supposed to come.

The vegetable chamber door 46 is slidably mounted in the front-back direction at the front end of the vegetable chamber 38. Moreover, the freezer compartment 48 is formed below the heat insulation partition plate 47. The freezing chamber 38 is thermally spaced apart from the upper vegetable chamber 38 and the refrigerating chamber 37. The upper door 49 and the lower door 50 are slidably moved forward and backward at the front end of the freezing chamber 48. It is installed. The cold air circulation to the freezer compartment is performed by the freezer compartment cooler 51 and the fan 52.

The machine room 53 is formed in the lower end part of the refrigerator main body 30, and the compressor 54 of a refrigeration cycle is arrange | positioned in the machine room 53. As shown in FIG. The compressor 54 is driven by the compressor motor 55, and the compressor motor 55 is electrically connected to the control device 56. In addition, the first and second negative ion generators 31 and 32 and the fans 44 and 52 are electrically connected to the control device 56, and the control device 56 controls the operation of the refrigeration cycle (for compressors). Frequency control of the motor), on / off control of the fans 44 and 52, and on / off control of the negative ion generators 31 and 32.

The refrigerating compartment door switch 57 operates by the opening / closing operation of the refrigerating compartment door 39 to input the open / close signal to the control device 56.

Next, the operation will be described. When the negative ion button 58 of an operation panel (not shown) installed in the refrigerating chamber door 39 or the like of the refrigerator main body 30 is operated, the first and second negative ion generators 31 and 32 operate according to respective operation modes. do.

When the first negative ion generator 31 inputs an open / close signal of the refrigerating compartment door 39, that is, an open signal of the door switch 57, the first negative ion generator 31 starts a timer A for a predetermined time (for example, 10 minutes) to generate negative ions. Turn on the generator 31. Thereafter, the negative ion generator continues to operate until the time count of the timer A reaches 10 minutes. In addition, by maintaining the food freshness in the refrigerating chamber 37 space by the negative ion generator 31 by operating the timer B for a predetermined interval (for example, 10 minutes at 25 minute intervals) regardless of the door opening and closing operation. It becomes possible.

The second negative ion generator 32 turns on the second negative ion generator 32 during the on period of the fan 44 when the on / off signal of the refrigerator compartment fan 44, that is, the on signal of the fan 44 is input. As a result, food freshness in the vegetable chamber 38 space can be maintained.

In other words, by generating negative ions in the refrigerating space (the refrigerating chamber 37 and the vegetable chamber 38) in the two negative ion generators 31 and 32, it is possible to evenly distribute negative ions to every corner of the refrigerating space, which is a germ of the entire refrigerating space. Can be eliminated, thereby significantly increasing the freshness-retaining effect of the food in the foodstuff.

As described above, by operating the first and second negative ion generators 31 and 32 in different operating modes, it is possible to generate necessary negative ions when necessary. That is, by operating the first negative ion generator 31 when the refrigerating compartment door 37 is opened, it is possible to prevent the invasion of various germs from the outside, and to allow the person who opens the door to reach the negative ion wind. It is also possible to provide a refresh effect.

In addition, by linking each operation mode to another operation control of the refrigerator, the control can be simplified, and the electric charges can be suppressed more than if the negative ion generators 31 and 32 are always operated continuously, and the negative ion generators 31 and 32 can be controlled. ) Can extend the life of the.

In the above embodiment, a plurality of anion generators are arranged in the refrigerating chamber space, but the same effect can be obtained by disposing them in the refrigerating chamber space and the freezing chamber space, respectively. In addition, the arrangement position is not limited to the ceiling surface 42 and the partition plate 36, and can be changed based on the arrangement configuration in the refrigerator, for example, provided in the rear duct 45.

In addition, in the said embodiment, although the operation mode of the 1st and 2nd negative ion generators 31 and 32 was changed, the control can be simplified further by setting it as the same operation mode. In addition, a plurality of negative ion generators may be operated regardless of the opening / closing operation of the door. For example, the same effect can be obtained even if the first and second negative ion generators are synchronized with the fan 44 for operation control.

Also, in a refrigerator using non-freon (combustible refrigerant), if the control to stop the operation of the negative ion generator when a refrigerant leak is detected is assembled, it is possible to make explosion-proof control at the time of refrigerant leakage, thereby increasing the safety of the refrigerator. Can provide.

Moreover, it is also possible to improve the deodorizing performance by using the negative ion generator of the said embodiment together with another deodorizing apparatus, for example, the plasma deodorizing apparatus and the photocatalyst deodorizing apparatus by a space discharge mechanism.

As described above, according to the invention of claim 1, when the door open / close detection device detects that the refrigerator door is opened, the negative ion generator is controlled to operate so that the negative ion generator is operated only during a period in which various bacteria are easily introduced together with the outside air. Various germs can be killed, whereby electric charges can be suppressed rather than continuously operating an anion generator constantly while maintaining the freshness maintaining effect of the food in the food, and the real life of the anion generator can be extended.

According to the invention of claim 2, while the refrigerator door is opened and the air curtain device is in operation, by operating the negative ion generator in conjunction with this, the inside of the air chamber by the air curtain is drawn in by the air curtain only during a period in which various bacteria are easily introduced with the outside air. It is possible to suppress an increase in temperature and to kill various germs by operating an anion generator, thereby increasing the freshness maintaining effect of foods in foods, and thus reducing electric charges rather than constantly operating an anion generator. It can also extend the real life of the negative ion generator.

According to the invention of claim 3, by continuing to operate the negative ion generator for a certain time even after the refrigerator door is closed, it is possible to kill as many germs that have entered the interior at the time of opening the door, thereby constantly operating the negative ion generator Electric charges can be suppressed more than that, and the real life of anion generator can be extended, and the freshness maintenance effect of food in food can be maintained.

According to the invention of claim 4, in the normal use, the door opening time is short for several tens of seconds, and when the door is opened for a long time exceeding that, it is regarded as an abnormal use state, eliminating the waste of continuously running an unlimited number of negative ion generators for a long time, It is possible to reduce power consumption and to extend the life of the negative ion generator.

According to the invention of claim 5, when it is detected that the door of the refrigerator is opened, the negative ion generator is continuously turned on for a predetermined time regardless of the opening or closing state of the door thereafter, thereby simplifying the control of the negative ion generator, and always continuously Electric charges can be suppressed rather than operating a generator, and the real life of an anion generator can be extended.

According to the invention of claim 6, by placing a plurality of negative ion generators, it is possible to evenly distribute negative ions to every corner of the refrigerating space, thereby killing various germs in the refrigerating space, thereby greatly improving the freshness maintaining effect of the food in the refrigerator. Can be. In addition, by operating the plural negative ion generators in different operating modes, the negative ions can be generated at the required place when needed, thereby reducing the electric charge and extending the actual life of the negative ion generator.

The invention according to claim 7, wherein in the refrigerator provided with a plurality of negative ion generators, various bacteria are introduced together with the outside air by controlling to turn on at least one negative ion generator when the door open / close detection device detects that the refrigerator door is opened. The anion generator is killed only during prone periods to kill germs. Thereby, while maintaining the freshness maintaining effect of food in food, it is possible to restrain electric charges and to extend the real life of anion generator rather than always operating anion generator continuously.

Claims (7)

A negative ion generator installed in a refrigerator, a door opening / closing detection device of the refrigerator, and a control device for controlling the negative ion generator on / off, And the control device turns on the negative ion generator when detecting that the door of the refrigerator is opened by the door open / close detection device. An anion generator installed in the refrigerator and an air curtain device which rotates the fan when the door of the refrigerator is opened to allow cold air to flow between the food in the refrigerator and the outside air, and to prevent the food in the refrigerator from directly contacting the outside air; It is provided with a control device for controlling the on / off of the negative ion generator, And the control device operates the negative ion generator in conjunction with the operation of the air curtain device. The refrigerator according to claim 1, wherein the control device continuously operates the negative ion generator for a predetermined time after detecting that the door of the refrigerator is closed by the door open / close detection device. The negative ion generator according to claim 1, wherein the control device turns on the negative ion generator when the door open / close detection device detects that the door of the refrigerator is opened, and when the open state of the door continues for a predetermined time or more. Refrigerator, characterized in that off. The method according to claim 1, wherein when the control device detects that the door of the refrigerator is opened by the door opening / closing detection device, the control device continuously turns on the negative ion generator regardless of a state of opening or closing the door. Featured refrigerator. A plurality of negative ion generators installed in the refrigerator of the refrigerator and a control device for controlling on / off of the plurality of negative ion generators, And the control device controls the operation modes of the plurality of negative ion generators in different operation modes. The refrigerator according to claim 6, wherein when the door of the refrigerator is opened by the door open / close detection device, at least one negative ion generator of the plurality of negative ion generators is turned on.

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