JP7002353B2 - refrigerator - Google Patents

Description

The present invention relates to a technique for a refrigerator for accommodating food, beverages and the like, and particularly to a refrigerator equipped with an ion generation unit.

Conventionally, an ion generation unit and a refrigerator equipped with the ion generation unit have been known. For example, Japanese Patent Application Laid-Open No. 2010-281526 (Patent Document 1) discloses a refrigerator. According to Patent Document 1, a storage chamber for storing storage, a cooler that generates cold air, a cold air passage through which cold air generated by the cooler flows, and a cold air passage that opens to the wall surface of the storage chamber and flows through the cold air passage. It is provided with a discharge port for discharging cold air to a storage chamber and an ion generator in which an ion generation unit for generating ions is arranged in the vicinity of the discharge port in the cold air passage.

Further, in Japanese Patent Application Laid-Open No. 2002-58731 (Patent Document 2), hydrogen peroxide H ₂ O ₂ or hydroxide radical OH, which is an active species, is generated by simultaneously generating negative ions and positive ions. , The ability of this H ₂ O ₂ or · OH to remove airborne bacteria due to its extremely strong activity, etc. are disclosed.

Japanese Patent Application Laid-Open No. 2016-207626 (Patent Document 3) discloses a discharge electrode cleaning tool and a method for cleaning the discharge electrode. According to Patent Document 3, the discharge electrode cleaning tool cleans a brush-shaped discharge electrode for ion generation in which a plurality of thread-like conductors are bundled at one end side, and the first cleaning is performed on the tip side. A first holding piece provided with a member and a second holding piece provided with a second cleaning member on the tip side are provided, and the first holding piece and the second holding piece are the first cleaning member and the second cleaning. The ion generation discharge electrode can be sandwiched between the members, and the first cleaning member and the second cleaning member are made of a porous material that captures foreign matter adhering to the ion generation discharge electrode.

Japanese Unexamined Patent Publication No. 2010-281526 Japanese Unexamined Patent Publication No. 2002-58731 Japanese Unexamined Patent Publication No. 2016-207626

If deposits adhere to the electrodes of the ion generation unit, the amount of ions generated decreases. Therefore, it is necessary to clean and remove the deposits on the electrodes by the technique disclosed in Patent Document 3. However, as exemplified in Patent Document 1, the ion generation unit provided in the refrigerator may be arranged near the back wall of the storage chamber, and it is difficult to clean the electrodes using a discharge electrode cleaning tool or the like. .. Further, since the refrigerator usually does not have a power switch, it is dangerous for the user to clean the discharge electrode to which a high voltage may be applied when the power is turned on with a cleaning tool.
Therefore, an object of the present invention is to provide a refrigerator in which deposits can be removed from the electrodes of the ion generation unit without using a discharge electrode cleaning tool or the like.

According to an aspect of the present invention, an ion generation unit that emits ions from a door for a refrigerating chamber and an ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side and supplies the ions into a refrigerator. A refrigerator provided with a control unit for turning on the ion generation unit according to the opening operation of the door and turning off the ion generation unit according to the closing operation of the door is provided.

As described above, according to the present invention, there is provided a refrigerator capable of removing deposits from the electrodes of the ion generation unit without using a discharge electrode cleaning tool or the like.

It is an overall front view of the refrigerator 100 which concerns on 1st Embodiment. It is a side sectional view of the refrigerator 100 which concerns on 1st Embodiment. It is sectional drawing which shows the internal structure of the ion generation unit 110 which concerns on 1st Embodiment. It is a circuit diagram of the ion generation unit 110 which concerns on 1st Embodiment. It is a block diagram which shows a part of the structure of the refrigerator 100 which concerns on 1st Embodiment. It is a flowchart which shows the process of the control part 190 of the refrigerator 100 which concerns on 1st Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 1st state which concerns on 2nd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 2nd state which concerns on 2nd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 3rd state which concerns on 2nd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 1st state which concerns on 3rd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 2nd state which concerns on 3rd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 3rd state which concerns on 3rd Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 1st state which concerns on 4th Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 2nd state which concerns on 4th Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 1st state which concerns on 5th Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 2nd state which concerns on 5th Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 in the 3rd state which concerns on 5th Embodiment. It is a block diagram of the structure of the refrigerator 100 which concerns on 6th Embodiment. It is a flowchart which shows the process of the control part 190 of the refrigerator 100 which concerns on 6th Embodiment. It is an image diagram which shows the structure around the ion generation unit 110 which concerns on 7th Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are the same. Therefore, the detailed description of them will not be repeated.
[First Embodiment]

The ion generation unit 110 according to this embodiment is mounted on a refrigerator 100 as shown in FIG. 1, for example. The refrigerator 100 is composed of, for example, a main body 101 and doors 102L, 102R and the like. The inside of the main body 101 includes a main refrigerating space 103, a freezing space 105, a fruit case 106, a vegetable case 107, an ice storage space 108, and the like. In the present embodiment, the chilled space 104 is provided in the main refrigerating space 103. The chilled space 104 has a lower case 104A having a front wall serving as a door at the front end and is arranged so as to be able to be pulled out forward, and a chilled space 104A fixed in the refrigerating space 103 with the lower case 104A in a stored state together with the lower case 104A. It is composed of an upper case 104B that seals the inside of the 104.

As shown in FIG. 2, an ion generation unit 110 for the chilled space 104 is attached to the chilled space 104. More specifically, a cold air duct 131 is provided behind the chilled space 104 as shown in FIG. 2, and a part of the cold air flowing through the cold air duct 131 is discharged from the discharge port 133 to the lower case 104A and the upper case 104B. It circulates along the outer wall and indirectly cools the inside of the chilled space 104. Then, the ion generation unit 110 is arranged in a space communicating with the upper case 104B of the chilled space 104 so that ions can be emitted into the chilled space 104. Therefore, it is possible to supply ions into the chilled space 104 while preventing the food and drink in the chilled space 104 from being directly exposed to the cold wind.

The ion generation unit 110 is not limited to the chilled space 104, but may be arranged in the fruit space 106, the vegetable space 107, the freezing space 105, or the cold air duct 131.

Here, the structure of the ion generation unit 110 according to the present embodiment will be described. FIG. 3 is a diagram showing an internal structure of the ion generation unit 110 according to the present embodiment. The ion generation unit 110 includes two discharge electrodes 1 and 2, an annular guide electrode 3 and 4, and two rectangular printed circuit boards 5 and 6. The inductive electrode 3 is an electrode for forming an electric field with the discharge electrode 1. The induction electrode 4 is an electrode for forming an electric field with the discharge electrode 2. The discharge electrode 1 is an electrode for generating negative ions with the induction electrode 3. The discharge electrode 2 is an electrode for generating positive ions with the induction electrode 4.

The printed circuit boards 5 and 6 are arranged in parallel with a predetermined interval. The induction electrode 3 is formed on the surface of one end of the printed circuit board 5 in the longitudinal direction by using the wiring layer of the printed circuit board 5. A hole 5a penetrating the printed circuit board 5 is opened inside the induction electrode 3. The induction electrode 4 is formed on the surface of the other end portion of the printed circuit board 5 in the longitudinal direction by using the wiring layer of the printed circuit board 5. A hole 5b that penetrates the printed circuit board 5 is opened inside the induction electrode 4.

Each of the discharge electrodes 1 and 2 is provided perpendicular to the printed circuit boards 5 and 6. The base end portion of the discharge electrode 1 is inserted into the hole of the printed circuit board 6, and the other end thereof penetrates the center of the hole 5a of the printed circuit board 5. The base end portion of the discharge electrode 2 is inserted into the hole of the printed circuit board 6, and the other end thereof penetrates the center of the hole 5b of the printed circuit board 5. The base ends of the discharge electrodes 1 and 2 are fixed to the printed circuit board 6 by soldering.

The induction electrodes 3 and 4 are formed on the printed circuit board 5, and the discharge electrodes 1 and 2 are fixed to the printed circuit board 6 separate from the printed circuit board 5. Therefore, even when the ion generator is placed in a high humidity environment, it is possible to suppress the leakage of current between the discharge electrodes 1 and 2 and the induction electrodes 3 and 4, and it is possible to stably generate ions. be.

The tips of the discharge electrodes 1 and 2 are formed in a brush shape. The discharge electrode 1 has a plurality of thread-like conductors 7 provided at its tip, and a joint portion 7a for bundling the roots of the plurality of conductors 7. The discharge electrode 2 has a plurality of thread-like conductors 8 provided at its tip, and a joint portion 8a for bundling the roots of the plurality of conductors 8.

FIG. 4 is a circuit diagram of the ion generation unit 110 according to the present embodiment. With reference to FIG. 4, the ion generation unit 110 has a power supply terminal T1, a ground terminal T2, diodes 32 and 33, and a step-up transformer 31 in addition to the discharge electrodes 1 and 2 and the induction electrodes 3 and 4. A positive electrode and a negative electrode of a DC power supply are connected to the power supply terminal T1 and the ground terminal T2, respectively. A DC power supply voltage (for example, + 12V or + 15V) is applied to the power supply terminal T1, and the ground terminal T2 is grounded. The power supply terminal T1 and the ground terminal T2 are connected to the step-up transformer 31 via the power supply circuit 30.

The step-up transformer 31 includes a primary winding 31a and a secondary winding 31b. One terminal of the secondary winding 31b is connected to the induction electrodes 3 and 4, and the other terminal is connected to the cathode of the diode 32 and the anode of the diode 33. The anode of the diode 32 is connected to the proximal end of the discharge electrode 1, and the cathode of the diode 33 is connected to the proximal end of the discharge electrode 2.

The operation of the ion generation unit 110 will be described with reference to FIGS. 3 and 4. When a DC power supply voltage is applied between the power supply terminal T1 and the ground terminal T2, a capacitor (not shown) of the power supply circuit 30 is charged. The electric charge charged in the capacitor is discharged through the primary winding 31a of the step-up transformer 31, and an impulse voltage is generated in the primary winding 31a.

When an impulse voltage is generated in the primary winding 31a, positive and negative high voltage pulses are alternately attenuated in the secondary winding 31b. A negative high voltage pulse is applied to the discharge electrode 1 via the diode 32, and a positive high voltage pulse is applied to the discharge electrode 2 via the diode 33. As a result, corona discharge is generated in the conductors 7 and 8 at the tips of the discharge electrodes 1 and 2, and negative ions and positive ions are generated, respectively.

The positive ion is a cluster ion in which a plurality of water molecules are clustered around a hydrogen ion (H <+>), and is expressed as H <+> (H2O) m (m is an arbitrary integer of 0 or more). Is done. The negative ion is a cluster ion in which a plurality of water molecules are clustered around an oxygen ion (O2 <->), and is represented as O2 <-> (H2O) n (n is an arbitrary integer of 0 or more). In addition, when positive and negative ions are released into a room, both ions surround bacteria and viruses floating in the air and cause a chemical reaction with each other on the surface. Airborne bacteria and the like are removed by the action of the hydroxyl radical (.OH) of the active species generated at that time.

In the present embodiment, the plurality of thread-like conductors 7 constituting the tip of the brush-shaped discharge electrode 1 are electrically repelled from each other when an electric field is formed between them and the induction electrode 3. It is configured to bend and deform outward due to electrical attraction to the induction electrode 3, and the area of the region where the tip of the conductor 7 exists increases and between the adjacent filamentous conductors 7. Interference is suppressed. That is, the amount of ions generated when the same voltage is applied increases as compared with the needle-shaped discharge electrode. Similarly, the amount of ions generated between the brush-shaped discharge electrode 2 and the induction electrode 4 increases.

FIG. 5 is a block diagram showing a part of the configuration of the refrigerator 100 according to the present embodiment. With reference to FIG. 5, the refrigerator 100 according to the present embodiment is equipped with a door sensor 104Z for detecting the opening / closing of the door of the chilled space 104. Then, the refrigerator 100 is equipped with a control unit 190 for controlling ON / OFF of the ion generation unit 110 based on the detection result from the door sensor 104Z and other conditions.

The control unit 190 is composed of, for example, a CPU (Central Processing Unit), a RAM (Random access memory), a ROM (Read Only Memory), and the like. The control unit 190 controls not only the ion generation unit 110 and the fan 119 but also each unit such as a compressor and a damper (not shown).

Hereinafter, the control method of the refrigerator 100 according to the present embodiment will be described. With reference to FIG. 6, when the control unit 190 detects that one of the doors 102L and 102R has opened based on the signal from the door sensor 104Z (YES in step S102), the ion generation unit 110 Is turned on (step S104).

When the control unit 190 detects that any of the doors 102L and 102R is closed based on the signal from the door sensor 104Z (YES in step S108), the elapsed time since the doors 102L and 102R are closed. Start measuring. When a predetermined time elapses after the doors 102L and 102R are closed (YES in step S110), the control unit 190 turns off the ion generation unit 110 (step S112).

As described above, in the present embodiment, since the ion generation unit 110 is turned on at least when the doors 102L and 102R are closed, a plurality of thread-like threads constituting the tips of the brush-shaped discharge electrodes 1 and 2 are formed. The conductors 7 and 8 are bent and deformed outward due to their electrical repulsion from each other and their electrical attraction to the induction electrodes 3 and 4. Therefore, in each of the thread-shaped conductors 7 and 8, the impact when the doors 102L and 102R are closed is transmitted to the ion generation unit 110 in a state where the distance between the tips is widened, so that the thread-shaped conductors that have received the impact are transmitted. Each of the bodies 7 and 8 can vibrate and deform more freely. Therefore, as compared with the state where the distance between the tips of the thread-shaped conductors 7 and 8 is narrowed, the dust adhering to the conductors 7 and 8 is more likely to be eliminated.

Further, since the fan 119 for the ion generation unit 110 is turned on at least when the doors 102L and 102R are closed, the conductor 7 by the wind of the fan 119 at least in accordance with the impact when the doors 102L and 102R are closed. The dust adhering to No. 8 is easily removed.

The control unit 190 is not limited to the form in which the dust adhering to the conductors 7 and 8 is removed by using the impact when the door of the chilled space 104 is closed, and the control unit 190 is used for the main refrigerating space 103, the fruit space 106, and the vegetable space 107. The ion generation unit 110 may be turned on when the door or case is opened, and then turned off after the door or case such as the chilled case or vegetable case is closed.
[Second Embodiment]

In the first embodiment, the control unit 190 turns on the ion generation unit 110 at a timing when an impact is likely to occur. However, the shock may be transmitted to the ion generation unit 110 simply by opening and closing the door or the case.

For example, as shown in FIG. 7, the ion generation unit 110 is directly or indirectly held by the structure of the refrigerator 100 via the support member 117. Then, a convex portion 118 is formed downward on the bottom of the ion generation unit 110, and a concave portion 104X is formed on a part of the chilled case 104, the vegetable case 107, and the fruit case 106. As a result, when the chilled case 104, the vegetable case 107, and the fruit case 106 are opened and closed, the convex portion 118 of the ion generation unit 110 moves in and out of the concave portion 104X of the chilled case 104, the vegetable case 107, and the fruit case 106 to generate ions. The impact is transmitted to the generation unit 110.

In other words, as shown in FIG. 8, the convex portion 118 of the ion generation unit 110 falls into the concave portion 104X of the chilled case 104, the vegetable case 107, and the fruit case 106, and the convex portion 118 of the ion generation unit 110 is before and after the concave portion 104X. The ion generation unit 110 jumps upward as shown in FIG. 9 due to the collision with the wall surface of the conductor 7 and 8 to remove dust adhering to the conductors 7 and 8.
[Third Embodiment]

The form is not limited to the form in which the recess 104X is formed in the chilled case 104, the vegetable case 107, and the fruit case 106. For example, as shown in FIG. 10, a convex portion 104Y may be formed on the upper portion of the chilled case 104, the vegetable case 107, or the fruit case 106. As a result, when the chilled case 104, the vegetable case 107, and the fruit case 106 are opened and closed, the convex portion 118 of the ion generation unit 110 is placed on the front and rear wall surfaces of the convex portion 104Y of the chilled case 104, the vegetable case 107, and the fruit case 106. The impact is transmitted to the ion generation unit 110 due to the collision.

Further, as shown in FIG. 11, a convex portion 118 is formed on the bottom surface of the rear portion of the ion generation unit 110, and the rear surface of the convex portion 118 is the front surface of the convex portion 104Y of the chilled case 104, the vegetable case 107, and the fruit case 106. In the event of a collision with the ion generation unit 110, the bottom surface of the front portion of the ion generation unit 110 may collide with any member and the impact may be transmitted to the ion generation unit 110.

Similarly, as shown in FIG. 12, a convex portion 118 is formed on the bottom surface of the rear portion of the ion generation unit 110, and the front surface of the convex portion 118 is a convex portion 104Y of the chilled case 104, the vegetable case 107, or the fruit case 106. In the case of collision with the rear surface, the bottom surface of the front portion of the ion generation unit 110 may collide with any member and the impact may be transmitted to the ion generation unit 110.
[Fourth Embodiment]

Further, as shown in FIG. 13, even if a convex portion 118B is formed on the upper surface of the rear portion of the ion generation unit 110 and a downward convex portion 104Y is formed on the chilled case 104, the vegetable case 107, or the fruit case 106. good. When the rear surface of the convex portion 118B collides with the front surface of the convex portion 104Y, the upper surface of the front portion of the ion generation unit 110 collides with any member and the impact is transmitted to the ion generation unit 110. May be good.

Similarly, as shown in FIG. 14, the front surface of the convex portion 118B on the upper surface of the rear portion of the ion generation unit 110 collided with the front surface of the convex portion 104Y downward toward the chilled case 104, the vegetable case 107, and the fruit case 106. In this case, the upper surface of the front portion of the ion generation unit 110 may collide with any member and the impact may be transmitted to the ion generation unit 110.

As described above, in the present embodiment, since the ion generation unit 110 is impacted at least when the door, the case, or the like is closed, dust adhering to the ion generation unit 110 is easily removed. It has become. The convex portion 104Y may be a concave portion 104X similar to that of the third embodiment.
[Fifth Embodiment]

As shown in FIG. 15, the ion generation unit 110 may be simply supported by the support member 117 in an unstable manner. Also in this case, as shown in FIGS. 16 and 17, the ion generation unit 110 is configured to vibrate or collide with other members due to vibration or inertial force when the door or case is opened or closed. Is preferable. As a result, it is possible to realize a configuration in which dust adhering to the ion generation unit 110 is easily eliminated.

The ion generation unit 110 may be tilted backward as shown in FIG. 16 when the support member 117 does not vibrate. In this case, since the generated ions are emitted diagonally upward, the ions can be supplied to a farther distance. Further, when it is desired to concentrate the ions in a narrow space, or when there is a storage space below, the ion may be tilted forward as shown in FIG. 17 when there is no vibration.
[Sixth Embodiment]

Alternatively, as shown in FIG. 18, the refrigerator 100 or the ion generation unit 110 may have a vibration element 111, a motor, or the like for giving vibration to the ion generation unit 110.

Then, in combination with the above embodiment, as shown in FIG. 19, when the doors 102L and 102R are opened, the control unit 190 may turn on the vibration element 111 and the motor (step S107). Then, after the doors 102L and 102R are closed and a predetermined time has elapsed, the control unit 190 may turn off the vibrating element 111 and the motor (step S116).

It should be noted that the control unit 190 may adopt a configuration in which the vibration element 111 or the motor is periodically turned on to give vibration to the ion generation unit 110. Further, the control unit 190 may adopt a configuration in which the fan 119 is periodically turned on to vibrate the ion generation unit 110.

The fan 119 and the vibration element 111 as vibration elements may be provided together, or may be either one of them.
[7th Embodiment]

Further, as shown in FIG. 20B, it is preferable to bend the wiring 1101 connected to the ion generation unit 110 according to the above embodiment. When the wiring 1101 connected to the ion generation unit 110 as shown in FIG. 20A is stretched, the vibration of the ion generation unit 110 may be limited. Therefore, the wiring 1101 connected to the ion generation unit 110 may be restricted. By bending the ion generation unit 110, the vibration of the ion generation unit 110 is not hindered, and as a result, the dust adhering to the ion generation unit 110 is easily removed.
<Summary>

In the above embodiment, ions are generated from the doors 102L, 102R (104A, 105, 106, 107) for the refrigerator compartment 103 and the ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side. The ion generation unit 110 that is discharged and supplied into the refrigerator and the ion generation unit 110 are turned on according to the opening operation of the doors 102L and 102R, and the ion generation unit 110 is turned off according to the closing operation of the doors 102L and 102R. A refrigerator 100 comprising a control unit 190 for the purpose is provided.

Preferably, it further includes a configuration for increasing the vibration of the ion generation unit 110.

In the above embodiment, ions are generated from the doors 102L, 102R (104A, 105, 106, 107) for the refrigerator compartment 103 and the ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side. Provided is a refrigerator 100 comprising an ion generation unit 110 that is discharged and supplied into the refrigerator, and a configuration for increasing the vibration of the ion generation unit 110 when the doors 102L and 102R are closed.

In the above embodiment, ions are generated from the doors 102L, 102R (104A, 105, 106, 107) for the refrigerator compartment 103 and the ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side. A refrigerator 100 including an ion generation unit 110 that is discharged and supplied into the refrigerator and a device 111 that gives vibration to the ion generation unit 110 is provided.

Preferably, when the ion generation unit 110 is turned on, a fan 119 for sending wind toward the ion generation unit 110 is further provided.

In the above embodiment, ions are generated from the doors 102L, 102R (104A, 105, 106, 107) for the refrigerator compartment 103 and the ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side. An ion generation unit 110 that is discharged and supplied into the refrigerator, a fan 119 for sending wind toward the ion generation unit 110, and a control unit 190 for turning on the fan when the ion generation unit 110 is turned on. A refrigerator 100 is provided.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. Further, a configuration obtained by combining the configurations of different embodiments described in the present specification with each other is also included in the scope of the present invention.

1: Discharge electrode 2: Discharge electrode 3: Induction electrode 4: Induction electrode 5: Printed circuit board 5a: Hole 5b: Hole 6: Printed circuit board 7: Conductor 7a: Joint part 8: Conductor 8a: Joint part 30: Power supply circuit 31: Step-up transformer 31a: Primary winding 31b: Secondary winding 32: Diode 33: Diode 100: Refrigerator 101: Main body 102L: Door 102R: Door 103: Main refrigerating space 104: Chilled case 104A: Lower case 104B: Upper Case 104X: Concave 104Y: Convex 104Z: Door sensor 105: Refrigerating space 106: Fruit case 107: Vegetable case 108: Ice storage space 110: Ion generation unit 111: Vibration element 117: Support member 118: Convex 118B: Convex 119 : Fan 131: Cold air duct 133: Discharge port 190: Control unit 1101: Wiring

Claims (5)

The door for the refrigerator and
An ion generation unit in which an ion generation discharge electrode formed by bundling a plurality of filamentous conductors on one end side is provided at the front end portion and ions are discharged from the ion generation discharge electrode and supplied into the refrigerator.
A transmission unit that transmits vibration generated when the door is closed to the ion generation unit is provided.
The ion generation unit is swingably supported in the refrigerating chamber via a fulcrum located behind the ion generation discharge electrode.
A refrigerator in which the transmission unit swings rearward from the fulcrum of the ion generation unit in conjunction with the closing operation of the door . The refrigerator according to claim 1, wherein the transmission unit has a configuration in which the rear portion of the ion generating unit is moved in one direction and then returned in the opposite direction in conjunction with the closing operation of the door. The transmission unit swings the rear portion of the ion generation unit from the fulcrum in conjunction with the closing operation of the door, so that the front end portion of the ion generation unit collides with the wall surface of the refrigerating chamber. The refrigerator according to claim 1 or 2. The invention according to any one of claims 1 to 3, further comprising a control unit for turning on the ion generating unit in response to the opening operation of the door and turning off the ion generating unit after the closing operation of the door. Refrigerator. The refrigerator according to claim 4 , further comprising a fan for sending wind toward the ion generating unit when the ion generating unit is turned on.

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