JP2018044742A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator comprising a video device and a voice device, which can reduce influence on a user.SOLUTION: A refrigerator 1 includes: a body 2; a door 3 configured to open/close a front opening of the body 2; a display unit 17 (video device) configured to display video on the front side of the door 3; a loudspeaker 19 (voice device) configured to output voice; a human detection unit (operation panel 5, door opening switch 6, door opening/closing sensor 7, proximity sensor 8) configured to detect a person existing on the front side of the door 3; and a control unit (main control unit 9, AV control unit 16) configured to, when the human detection unit detects a person, change output modes of the display unit 17 and loudspeaker 19 to a mode different from a mode in a case where a person is not detected.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a refrigerator.

  In recent years, with the spread of smartphones and tablet terminals, thin displays such as liquid crystal and organic EL, and small and thin speakers have been used in various products. For example, a refrigerator in which a video device such as a display unit is provided on the front surface of a door and an audio device such as a speaker is provided on a side surface of the door is also emerging (see, for example, Patent Document 1).

JP 2014-196848 A

Now, in the case of a general television, it is recommended to view the screen from a certain distance.
However, in the case of a refrigerator, it is necessary to approach the front side of the refrigerator because the door is opened and closed when the food is taken in and out. Moreover, when operating an operation panel, it is necessary to approach the front side of a refrigerator similarly.

  For this reason, when the refrigerator is provided with a video output function and an audio output function, it is assumed that the video is viewed very close to the display unit or the audio is heard very close to the speaker. In that case, you may experience a photosensitivity attack by looking at the white light emission or flashing image nearby, you will be shocked by listening to loud sounds nearby, or you will be hearing impaired by repeatedly listening, etc. There is concern that it may affect users.

  Therefore, a refrigerator that can reduce the influence on a user in a configuration including a video device and an audio device is provided.

  The refrigerator of the embodiment detects a main body, a door that opens and closes the front opening of the main body, a video device that displays an image on the front side of the door, an audio device that outputs sound, and a person existing on the front side of the door And a control unit that changes the output mode of the video device and the audio device to a mode different from that when no human is detected when a human is detected by the human detection unit. To do.

The figure which shows the structure of the refrigerator of embodiment typically The figure which shows the electric constitution of the refrigerator typically The figure which shows the difference of the output mode of brightness and volume typically Diagram showing the flow of adjustment processing The figure which shows typically the difference in the output mode of the brightness | luminance and volume of other embodiment.

Hereinafter, embodiments will be described with reference to FIGS. 1 to 5.
As shown in FIG. 1, the refrigerator 1 of the present embodiment includes a main body 2 and a door 3 that opens and closes a front opening of the main body 2. In this embodiment, the door 3 is assumed to be a rotary type. Of course, the refrigerator 1 having one door 3 as shown in FIG. 1 may be used. However, in the case where a plurality of storage rooms are provided, and the doors 3 are provided, the vicinity of the face of the user. What is provided in is equivalent to the door 3 in this embodiment. Further, the door 3 is not limited to a pivoting type, and may be a drawer type or a so-called double door type.

  The refrigerator 1 includes a compressor 4, a compressor fan 4a, an operation panel 5, an opening switch 6, a door opening / closing sensor 7, a proximity sensor 8, a main control unit 9 (corresponding to a control unit), and the like.

  The compressor 4 constitutes a known cooling mechanism for cooling the inside of a refrigerator room or a freezer room provided in the refrigerator 1. The operation frequency of the compressor 4 is controlled by the main control unit 9 and generates sound and vibration during operation. That is, the compressor 4 may become a generation source that generates sound and vibration among the functional units of the refrigerator 1. The compressor 4 is air-cooled by a compressor fan 4a during operation.

  The operation panel 5 includes an LED display, a switch, and the like, and inputs an operation on the refrigerator 1 by the user. At this time, the fact that the operation panel 5 has been operated means that the user is present in front of the door 3, so the operation panel 5 is a person who detects that there is a person in front of the door 3. Also functions as a detector. The operation panel 5 is not limited to the contact type, but may be a non-contact type operation mode by voice input, or a contact type and a non-contact type may be mixed.

  The door opening switch 6 is composed of, for example, an electrostatic switch, and when the user touches a predetermined area on the front surface of the door 3, the contact is detected and notified to the main control unit 9. Receiving the notification, the main control unit 9 opens the door 3 by driving an unillustrated door 3 device. At this time, the fact that the door opening switch 6 has been operated means that the user exists in front of the door 3, so the door opening switch 6 detects that there is a person in front of the door 3. It also functions as a person detection unit.

The door open / close sensor 7 detects the open / closed state of the door 3. Since the door 3 is normally opened by the user, it is considered that there is a person in front of the door 3 at the timing when the door 3 is opened and when the door 3 is closed. Therefore, the door opening / closing sensor 7 also functions as a person detection unit that detects that there is a person in front of the door 3.
The proximity sensor 8 is configured by an infrared sensor or the like, for example, and detects a person near the door 3. The proximity sensor 8 functions as a human detection unit.

  The main control unit 9 is configured by a microcomputer (not shown) that incorporates a timer 10. The timer 10 may be externally attached to the microcomputer. As shown in FIG. 2, the main controller 9 includes a compressor 4, a compressor fan 4a, an operation panel 5, an opening switch 6, a door opening / closing sensor 7, a proximity sensor 8, an outside air temperature sensor 11, an internal fan 12, It is connected to the internal temperature sensor 13, the interior light 14, the camera 15, and the like. And the main control part 9 implement | achieves a refrigeration / freezing function by controlling the driving | operation of the compressor 4, etc. based on the external temperature detected by each sensor, the internal temperature, etc., and controls the refrigerator 1 whole. Moreover, the camera 15 images inside or outside the warehouse.

  The main control unit 9 is connected to the AV control unit 16 (corresponding to the control unit), and is configured to be able to transmit and receive various data indicating the state of the refrigerator 1 to and from the AV control unit 16. . Specifically, between the main control unit 9 and the AV control unit 16, for example, whether the operation panel 5 has been operated, whether the proximity sensor 8 has detected a person, or has the door opening switch 6 been operated? No, data indicating the state of the refrigerator 1 such as whether the door 3 is in an open state or a closed state, and whether the compressor 4 is operating or stopped are exchanged.

  The AV control unit 16 is connected to a display unit 17 (corresponding to a video device), a touch panel sensor 18, a speaker 19 (corresponding to an audio device), a microphone 20, an external input / output unit 21, an external communication unit 22, and the like. ing. Although details will be described later, the AV control unit 16 reduces the output from the display unit 17 and the speaker 19 based on an instruction to reduce the luminance and volume from the main control unit 9 when a person is detected. Etc. are executed.

  As shown in FIG. 1, the display unit 17 is formed thin, for example, by a liquid crystal display or an organic EL display, and is provided on the door 3 of the refrigerator 1. The display unit 17 is provided with a touch panel sensor 18 corresponding to the display area. In addition, the display part 17 may be provided in the aspect exposed to the front surface of the door 3 like this embodiment, or it is provided in the inside of the door 3 and the part corresponding to the display part 17 can be made visible with glass. .

The speaker 19 outputs sound, particularly sound related to the image displayed on the display unit 17 in the present embodiment. In the present embodiment, the speakers 19 are respectively provided on the left and right sides of the door 3. In addition, the number and installation locations of the speakers 19 are not limited to those exemplified in this embodiment, such as providing one speaker 19 above the door 3.
The microphone 20 inputs the voice uttered by the user and the sound outside the warehouse. In addition, when the refrigerator 1 is a structure which enables operation by voice input, the structure which serves as it may be sufficient.

The external input / output unit 21 includes, for example, a memory card interface, a USB interface, an image interface, and the like, and reads / writes data from / to a memory card, a portable terminal, and the like.
The external communication unit 22 includes a wired LAN, a wireless LAN, Bluetooth (registered trademark), and the like, and transmits / receives data such as video to be displayed on the display unit 17 via an external portable terminal, the Internet, or the like.

  The external input / output unit 21 and the external communication unit 22 receive video data displayed on the display unit 17, audio data output from the speaker 19, and the like from a memory card, a portable terminal, the Internet, or the like. The video data displayed on the display unit 17 includes, for example, news provided via the Internet, direct mail and commercials distributed from companies, videos such as video channels, movies paid for free or so-called video chat, so-called video chat Notification from SNS (Social Networking System), an image captured by the camera 15, an image of a TV intercom, and the like are assumed.

  In addition, for example, a food management screen may be displayed after a commercial is displayed, or an image obtained by capturing an image of the interior with the camera 15 may be displayed after the commercial is displayed. That is, the display unit 17 does not necessarily display only data received from the outside.

  That is, the information output from the display unit 17 and the speaker 19 includes information displayed according to the user's intention like a movie, and information displayed regardless of the user's intention such as a video of a TV interphone. That is, information output at an arbitrary timing is mixed. The displayed video is not limited to a moving image but may be a still image.

Next, the operation of the above configuration will be described.
As described above, in the case of the refrigerator 1, when putting in or out food or operating the operation panel 5, it is necessary to approach the front side of the refrigerator 1, and an image is seen near the display unit 17 or a speaker. It is assumed that the user listens to sound near 19. In such a case, there is a concern that the user may be affected, such as a photosensitivity attack or a decrease in hearing. On the other hand, if the configuration is such that video is not displayed or audio is not output, it will not be possible to meet the need to provide information to the user.

Therefore, the refrigerator 1 according to the present embodiment can meet the needs to provide information to the user while reducing the influence on the user as follows.
First, the display unit 17 and the speaker 19 generally have a function of adjusting luminance when outputting video and volume when outputting sound. Specifically, it is assumed that the solid line graph shown in FIG. 3 represents the luminance or audio output value in the normal state, that is, in a state where the output is not adjusted. In the present embodiment, the luminance output value means the brightness of the screen, and the sound output value means the volume. The normal time means a state in which the brightness and volume are set at the time of shipment, or a state in which the user resets the brightness and volume.

  Now, when the brightness or volume is lowered compared to the normal time, the output value of the brightness or sound is lower than that of the normal time, as indicated by a broken line. If the brightness or volume is reduced in this way, the possibility of affecting the user can be reduced. Note that the ratios for reducing the luminance and volume are set in advance.

  Therefore, the refrigerator 1 determines whether or not the brightness or volume is adjusted based on a preset condition. In the present embodiment, detection of a person is set as a reduction condition for reducing the luminance or volume. More specifically, the lowering condition of this embodiment is that when the input to the operation panel 5, that is, the operation is detected, the door 3 is opened, the door 3 is closed, the proximity sensor 8 At least one of the detected times is set.

  And the refrigerator 1 performs the adjustment process shown in FIG. 4, and when it determines with the reduction | decrease conditions having been satisfied (S1: YES), the fall operation | movement output in the state which reduced the brightness | luminance or the volume rather than the normal time Is executed (S2). That is, the refrigerator 1 changes the output mode from the display unit 17 and the speaker 19 so as to relatively suppress the influence on the user when the reduction condition is satisfied. Thereby, the influence which it has on a user can be suppressed. At this time, although illustration is omitted, the refrigerator 1 maintains the state in which the output mode is changed in a state where a person is detected, while the output mode is changed according to an instruction from the main control unit 9 when no person is detected. Return to normal time.

  By the way, when the luminance or volume is increased as compared with the normal time, the output value of the luminance or the sound is larger than that in the normal time, as indicated by a dashed line in FIG. If the brightness or volume increases in this way, the possibility of affecting the user at the time of output increases, but in the case of high-priority information, reliably transmitting the information to the user results in an effect. It is thought that it can be further reduced. Note that the ratios for increasing the brightness and volume are set in advance.

  Therefore, in the present embodiment, information that should be transmitted to the user is set as an increase condition for increasing the luminance or volume. For example, disaster information such as earthquake alerts and information such as fire notifications for notifying that a fire has occurred on another floor in an apartment building are considered to be information with high priority and urgency. Further, the schedule such as going out is also considered to be information having a high degree of superiority to be notified to the user.

  Therefore, when it is determined that the increase condition is satisfied in the adjustment process illustrated in FIG. 4 (S1: NO, S3: YES), the refrigerator 1 outputs the luminance or the sound volume in a state in which the luminance or volume is increased from that in the normal state. Increase operation is executed (S4). That is, the refrigerator 1 changes the output mode from the display unit 17 and the speaker 19 to a side that can be easily recognized by the user when the increase condition is satisfied. Thereby, information can be reliably transmitted to the user. At this time, although illustration is omitted, the refrigerator 1 maintains the state in which the output mode is changed in a state where a person is detected, while the output mode is changed according to an instruction from the main control unit 9 when no person is detected. Return to normal time.

  As described above, the information output from the display unit 17 and the speaker 19 includes both information according to the intention of the user and information output at an arbitrary timing. And it is thought that the information output at an arbitrary timing may be output even when no person is present in front of the door 3.

Therefore, when it is determined that neither the lowering condition nor the increasing condition is satisfied (S1: NO, S3: NO), the refrigerator 1 executes a normal operation of outputting the luminance or the sound volume in the same state at the normal time. (S5). That is, the refrigerator 1 does not change the output mode from the display unit 17 and the speaker 19 when neither the decrease condition nor the increase condition is satisfied. Thereby, even if it does not exist in front of the door 3, information can be transmitted to a person existing near the refrigerator 1.
Thus, the refrigerator 1 changes the output mode from the display unit 17 and the speaker 19.

According to the embodiment described above, the following effects can be obtained.
The refrigerator 1 according to the embodiment is displayed on the main body 2, the door 3 that opens and closes the front opening of the main body 2, the display unit 17 (video device) that displays an image on the front side of the door 3, and the display unit 17. A speaker 19 (audio device) that outputs audio related to the video, a human detection unit that detects a person existing on the front side of the door 3, and when a human is detected by the human detection unit, the display unit 17 and the speaker 19 And an AV control unit 16 (control unit) that changes the output mode to a mode different from the case where no person is detected. Thereby, the output mode from the display part 17 and the speaker 19 changes, and the influence which it has on a user can be reduced.

  When a person is detected by the person detection unit, the refrigerator 1 changes the output mode of the display unit 17 and the speaker 19 to a side that relatively suppresses the influence on the user. As a result, it is possible to avoid having a high-luminance video in the short distance immediately in front of the door 3 or listening to a loud sound at a short distance, thereby reducing the influence on the user. it can.

  The refrigerator 1 includes an operation panel 5 (operation unit) that inputs an operation to the refrigerator 1 as a human detection unit. When the AV control unit 16 detects an input to the operation panel 5, the display unit 17 and the speaker 19 output modes are changed. Thereby, since it can detect correctly that a person exists in front of the door 3, the influence given to a user can be reduced reliably.

  The refrigerator 1 includes an open / close sensor (open / close detection unit) that detects the open / close state of the door 3 as a human detection unit, and changes the output mode of the display unit 17 and the speaker 19 when the door 3 is opened. Thereby, since it can detect correctly that a person exists in front of the door 3, the influence given to a user can be reduced reliably.

  The refrigerator 1 includes a proximity sensor 8 that detects a person existing in the vicinity of the door 3 as a person detection unit, and changes the output mode of the display unit 17 and the speaker 19 when a person is detected by the proximity sensor 8. Thereby, since it can detect correctly that a person exists in front of the door 3, the influence given to a user can be reduced reliably.

  The refrigerator 1 maintains the state in which the output modes of the display unit 17 and the speaker 19 are changed while a person is detected by the human detection unit. In this case, the brightness and volume are kept constant if video and audio are being output, and no output is maintained if video and audio are not being output. If the brightness and volume change suddenly, the user's attention may be drawn. However, maintaining the output mode suddenly changes the image and volume when, for example, food is put in and out of the refrigerator 1. Is suppressed.

  As a result, the user's attention is eliminated, and by dedicating the user to putting in and out the food, it is possible to prevent the food from being dropped due to changes in the image and volume, and the risk is also reduced. Can be made.

  In this case, depending on the video source and audio source, the original brightness and volume may be lower than those during the reduction operation. However, in the configuration that maintains the output mode, the display brightness is reduced even if the source brightness is reduced. Configurations that do not change, that is, do not flicker the display are also included. In other words, not changing the display mode so that it does not seem to be a failure.

  When the refrigerator 1 receives information that can be determined to have high priority and urgency, such as disaster information, for example, the refrigerator 1 changes the output mode output from the display unit 17 and the speaker 19 to a side that can be easily recognized by the user. Specifically, an increase operation for increasing the brightness and volume compared to the normal time is executed. As a result, for example, information such as earthquake early warning and fire notification is considered to have a much greater merit of prompting evacuation by reliably informing the user than the demerit affecting the user. For this reason, by changing the output mode of information having a high degree of superiority to be notified to the user to a side that is easily recognized by the user, a great merit can be given to the user as a result.

(Other embodiments)
In the embodiment, an example in which the output is reduced or increased as a whole as shown in FIG. 3 is shown. However, as shown in FIG. You can cut the volume. Even with such a configuration, the influence on the user can be reduced. Moreover, it can be configured to decrease or increase not in proportion but in absolute value.

  In the embodiment, the output mode is changed mainly at the timing when a person is detected, and the changed output mode is maintained while the person is detected. However, the embodiment is not limited thereto. For example, the refrigerator 1 may be configured to change the output mode for a predetermined time after detecting a person, for example. At this time, the predetermined time may be set to a time when the user is assumed to leave the front of the door 3.

  Specifically, a predetermined time from when the door 3 is closed until a predetermined time elapses after the input to the operation panel 5 is elapsed, until a predetermined time elapses after the door 3 is opened. Until the time elapses, the output mode can be changed until a predetermined time elapses after the proximity sensor 8 detects a person. Even with such a configuration, it is possible to avoid having a high-luminance video at a short distance and listening to a sound of a large volume at a short distance, and the influence on the user can be reduced.

  In the case of the operation panel 5, the detection method of the input to the operation panel 5 is not particularly limited, and it may be regarded as being operated when a switch or the like on the operation panel 5 is touched. An end button (operation confirmation button) or the like may be provided, or it may be regarded as an operation end when a finger is removed from the operation button for a few seconds, and the words “operation start” and “operation end” are recognized by voice recognition. By doing so, the start and end of the operation can be specified. That is, a predetermined time can be set with respect to the time after the input to the operation panel 5 is first detected, and the predetermined time can be set with respect to the time after the input to the operation panel 5 is last detected. .

  The refrigerator 1 is configured to fade in the video and the sound volume, that is, to gradually view the video when it is time to display the video and output the sound while the person is detected by the human detection unit. It can be configured to gradually increase the volume as well. If the brightness or volume changes suddenly, the user's attention may be drawn. However, by fading in, for example, when the food is put in and out of the refrigerator 1, the picture and volume change suddenly. Is suppressed. Thereby, when a person is in the vicinity of the refrigerator 1, sudden output of video and audio is suppressed, and the user can be prevented from being surprised.

  The refrigerator 1 includes a sound generation source that generates sound during operation. When the sound generation source is operating, the refrigerator 1 can be configured to increase the sound output from the speaker 19. The refrigerator 1 includes, for example, a compressor 4 that constitutes a cooling mechanism. Since the refrigerant is circulated by applying pressure by the compressor 4, a rotating sound is generated from the compressor 4. For this reason, if the cooling mechanism operates during the sound output from the speaker 19, it becomes difficult to hear the sound due to the rotation sound of the compressor 4.

Therefore, when the compressor 4 is in operation, the difficulty in hearing can be improved by increasing the sound output from the speaker 19. In this case, by controlling to increase / decrease the volume seamlessly, the volume can be changed without the user being concerned. The sound source includes not only the compressor 4, but also a compressor fan 4a and an ice making device.
In this case, when the person is in the vicinity of the refrigerator, the volume of the speaker 19 can be reduced, but the volume can be made larger than the rotational sound of the compressor 4. Thereby, it is possible to achieve both the influence on people and ease of hearing.

The refrigerator 1 can be configured to reduce the operating frequency of the compressor 4 when outputting sound from the speaker 19. Thereby, the rotation sound of the compressor 4 becomes small and it is possible to improve difficulty in hearing.
In this case, when the user wants to make ice in a short time, the rotation frequency of the compressor 4 is increased and the refrigerant is circulated at high speed, so the rotation frequency increases and the rotation sound also increases. Therefore, according to the rotation frequency (low speed, medium speed, high speed, etc.) of the compressor 4, for example, the ratio of increasing the volume, such as 5% louder at low speed, 10% louder at medium speed, 20% louder at high speed, etc. Can be made adjustable.

  The refrigerator 1 can execute a process of increasing the sound output from the speaker 19 when the compressor 4 is in operation and a process of reducing the operating frequency of the compressor 4 when the sound is being output from the speaker 19. It can be configured to execute a process selected in advance by the user.

  It is said that the sense of sound differs from person to person. For this reason, it is considered that a person who is sensitive to sound is very worried about noise (abnormal noise) mixed in the sound from the speaker 19, but there are also people who do not care much even if noise is mixed. .

  Therefore, the user feels that the process of increasing the sound output from the speaker 19 when the compressor 4 is in operation and the process of reducing the operating frequency of the compressor 4 when the sound is being output from the speaker 19 are performed. By making it possible to select according to the above, the refrigerator 1 becomes easy to use. The selection operation is set by, for example, displaying a combination of “increase / do not increase the sound output from the speaker 19” and “reducing / not reduce the operation sound of the compressor 4” on the operation panel 5 or the display unit 17. can do.

  The refrigerator 1 is configured to increase the sound output from the speaker 19 when the compressor 4 is in operation (hereinafter referred to as the former process for convenience) and to output the sound of the compressor 4 when the sound is output from the speaker 19. A process for lowering the operating frequency (hereinafter referred to as the latter process for the sake of convenience) can be executed, and a process for increasing the sound output from the speaker 19 is executed when rapid cooling of the interior is required On the other hand, when rapid cooling of the interior is not necessary, the processing for reducing the operating frequency of the compressor 4 can be executed.

  When the former process is executed, the cooling performance does not change, but the power consumption increases to increase the volume. On the other hand, when the latter process is executed, the power consumption can be suppressed, but the cooling performance is lowered. Therefore, the former process and the latter process are automatically switched depending on whether rapid cooling is necessary.

  For example, when the outside air temperature is high (such as 25 ° C. or higher), the internal temperature rises according to the number of times the door 3 is opened or closed or the opening time of the door 3, so whether the detection value of the internal temperature sensor 13 increases or not. Regardless, rapid cooling is performed. Further, when the user gives an instruction to start an ice making function, a chilled function, or a quick freezing function from the operation panel 5, quick cooling is performed.

  Therefore, when executing rapid cooling, an instruction to increase the volume output from the speaker 19 is issued, while the compressor 4 is operated when the compressor 4 is being operated during normal operation of operating the compressor 4 except during rapid cooling. 4 is reduced. Thereby, the former process and the latter process can be automatically switched, and an appropriate operation according to the situation can be performed.

  The refrigerator 1 changes the output mode of the display unit 17 and the speaker 19 to a plurality, and changes the mode in which the influence on the user is relatively suppressed. When changing the various output modes described above, for example, when the door 3 is opened or closed, when the operation panel 5 is operated, or when a person is detected by the proximity sensor 8, processing for reducing the brightness and volume, processing for fading in The priority of the process for maintaining the output mode is set high, and the process for increasing the volume of the speaker 19 and the process for decreasing the rotation frequency of the compressor 4 are set low. Accordingly, it is possible to prioritize the operation that reduces the influence on the user and the possibility of being surprised or distracting attention.

  In the embodiment, the configuration in which an instruction to change the output mode is output from the main control unit 9, but information related to whether or not a person has been detected from the main control unit 9 is notified to the AV control unit 16, and AV control is performed. The unit 16 can determine whether to change the output mode. Further, the main control unit 9 and the AV control unit 16 can perform control to change the output mode in cooperation.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a refrigerator, 2 is a main body, 3 is a door, 4 is a compressor (sound generation source), 4a is a compressor fan (sound generation source), 5 is an operation panel (human detection unit), and 6 is an opening switch. (Human detection unit), 7 is a door opening / closing sensor (human detection unit), 8 is a proximity sensor (human detection unit), 9 is a main control unit (control unit), 16 is an AV control unit (control unit), and 17 is a display. Reference numeral (video device) 19 denotes a speaker (audio device).

Claims (13)

The body,
A door for opening and closing the front opening of the main body;
A video device for displaying video on the front side of the door;
An audio device for outputting audio;
A human detection unit for detecting a person present on the front side of the door;
When a person is detected by the human detection unit, the control unit changes the output mode of the video device and the audio device to a mode different from the case where no human is detected,
A refrigerator comprising:   The control unit, when a person is detected by the human detection unit, changes an output mode of the video device and the audio device to a side that relatively suppresses an influence on a user. Item 10. The refrigerator according to Item 1. As the human detection unit, provided with an operation unit for inputting an operation to the refrigerator,
The control unit detects the output mode of the video device and the audio device when detecting an input to the operation unit and / or until a predetermined time elapses after the input to the operation unit. The refrigerator according to claim 1 or 2, wherein the refrigerator is changed. As the human detection unit, an open / close detection unit that detects the open / closed state of the door,
The control unit is configured such that when the door is opened, when the door is closed, until a predetermined time elapses after the door is opened, and / or for a predetermined time after the door is closed. 4. The refrigerator according to claim 1, wherein the output mode of the video device and the audio device is changed until the time elapses. 5. As the human detection unit, provided with a proximity sensor for detecting a person existing in the vicinity of the door,
The controller controls the output mode of the video device and the audio device when a person is detected by the proximity sensor and / or until a predetermined time elapses after the person is detected by the proximity sensor. The refrigerator according to any one of claims 1 to 4, wherein the refrigerator is changed. The video device and the audio device can display video and output audio at an arbitrary timing,
The control unit fades in video and audio when it is time to start displaying video and outputting audio while a person is detected by the human detection unit. The refrigerator according to any one of 5.   The said control part maintains the state which changed the output mode of the said video device and the said audio | voice apparatus, while the person is detected by the said person detection part, The any one of Claim 1 to 6 characterized by the above-mentioned. The refrigerator according to the item.   8. The control unit according to claim 1, wherein when the information has high priority, the control unit changes an output mode output from the video device and the audio device to a side more easily recognized by a user. 9. The refrigerator according to the item.   The said control part changes the output mode of the said video device and the said audio | voice apparatus into multiple, and changes it preferentially in the mode by which the influence which acts on a user is suppressed relatively. The refrigerator according to any one of 1 to 8. The refrigerator has an audio source that generates sound during operation,
The refrigerator according to any one of claims 1 to 9, wherein the control unit increases a sound output from the sound device when the sound generation source is in operation. The refrigerator includes a compressor as the sound generation source,
The refrigerator according to claim 10, wherein an operating frequency of the compressor is lowered when sound is being output from the sound device. Equipped with a compressor that constitutes a cooling mechanism for cooling the interior
A process for increasing the sound output from the audio device when the compressor is operating and a process for decreasing the operating frequency of the compressor when the sound is being output from the audio device can be executed in advance. The refrigerator according to any one of claims 1 to 9, wherein a process selected by a user is executed. It has a compressor that constitutes a cooling mechanism that cools the inside of the refrigerator,
A process of increasing the sound output from the audio device when the compressor is operating, and a process of decreasing the operating frequency of the compressor when the audio is being output from the audio device can be executed. When rapid cooling in the interior is required, processing to increase the sound output from the audio device is performed, while when rapid cooling in the chamber is not necessary, processing to lower the operating frequency of the compressor is performed. The refrigerator according to any one of claims 1 to 9, wherein:

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