CN106907898B - Intelligent refrigerator - Google Patents

Intelligent refrigerator Download PDF

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Publication number
CN106907898B
CN106907898B CN201510982648.8A CN201510982648A CN106907898B CN 106907898 B CN106907898 B CN 106907898B CN 201510982648 A CN201510982648 A CN 201510982648A CN 106907898 B CN106907898 B CN 106907898B
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CN
China
Prior art keywords
door body
refrigerator
object sensor
door
infrared rays
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201510982648.8A
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Chinese (zh)
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CN106907898A (en
Inventor
陈光林
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Beijing Qihoo Technology Co Ltd
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Beijing Qihoo Technology Co Ltd
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Priority to CN201510982648.8A priority Critical patent/CN106907898B/en
Publication of CN106907898A publication Critical patent/CN106907898A/en
Application granted granted Critical
Publication of CN106907898B publication Critical patent/CN106907898B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/04—Sensors detecting the presence of a person

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)

Abstract

The invention provides an intelligent refrigerator, comprising: a box body; the door body is hinged with the box body through a vertical rotating shaft; the object sensor is used for sensing whether an object exists in a set range on the front surface of the box body when the door body is opened; and the control system is connected with the door body and the object sensor, and is used for keeping the door body in an opening state when the object sensor senses an object and closing the door body when the object sensor does not sense the object. The invention can improve the convenience of the refrigerator.

Description

Intelligent refrigerator
Technical Field
The invention relates to the technology of household appliances, in particular to an intelligent refrigerator.
Background
The refrigerator can refrigerate or freeze food, and is a common electric appliance in life.
The existing refrigerator comprises a refrigerator body and a door body, wherein the door body is hinged with the refrigerator body through a rotating shaft, so that the door body can rotate relative to the refrigerator body, and the door body is opened or closed.
At present, the door bodies of some refrigerators cannot be automatically closed after being opened, and a user needs to manually close the door after taking articles in the refrigerator, so that the refrigerator is inconvenient to use and the problem of forgetting to close the door can be caused. And the door bodies of some refrigerators are automatically closed after being opened, so that a user needs to hold the door bodies by hands when taking articles in the refrigerators to prevent the door bodies from being automatically closed and touching the body of the user, and the problem of inconvenient use also exists.
Disclosure of Invention
The invention provides an intelligent refrigerator to improve the convenience of the refrigerator.
The invention provides an intelligent refrigerator, comprising:
a box body;
the door body is hinged with the box body through a vertical rotating shaft;
the object sensor is used for sensing whether an object exists in a set range on the front surface of the box body when the door body is opened;
and the control system is connected with the door body and the object sensor, and is used for keeping the door body in an opening state when the object sensor senses an object and closing the door body when the object sensor does not sense the object.
The refrigerator, preferably, the object sensor includes: the infrared emitter is used for emitting infrared rays to the front surface of the box body within a set range when the door body is opened; the infrared receiver is used for receiving the infrared rays reflected within the set range on the front surface of the box body; correspondingly, the control system is specifically configured to enable the door body to be kept in an open state when the infrared receiver receives infrared rays, and enable the door body to be closed when the infrared receiver does not receive infrared rays.
The refrigerator, preferably, the control system includes: the driving device is connected with the door body and used for driving the door body to close; and the controller is connected with the driving device and the infrared receiver and is used for controlling the driving device to be closed when the infrared receiver receives infrared rays and controlling the driving device to be opened when the infrared receiver does not receive the infrared rays.
The refrigerator preferably further comprises: the automatic reset device is connected with the door body and used for driving the door body to close; the control system includes: the positioning device is used for positioning the door body in an opening state and releasing the positioning of the door body in a closing state; and the controller is connected with the positioning device and the infrared receiver and is used for controlling the positioning device to be opened when the infrared receiver receives infrared rays and controlling the positioning device to be closed when the infrared receiver does not receive the infrared rays.
Preferably, the object sensor is arranged on the inner side of the door body of the refrigerator.
Preferably, the refrigerator is characterized in that a storage rack is arranged on the inner side of the door body, and the object sensor is arranged on the surface of the storage rack, which is back to the door body.
In the refrigerator, preferably, the object sensor is disposed on an outer surface of the refrigerator body.
Preferably, the object sensor is arranged on the surface of the refrigerator body, which is used for being in contact with the door body, the object sensor is opened when the door body and the refrigerator body form a first set angle, and is opened when the door body and the refrigerator body form a second set angle, and the first set angle is larger than the second set angle.
Based on the above, according to the refrigerator provided by the invention, when a user opens the refrigerator door to take articles in the refrigerator, the object sensor can sense the articles, the control system enables the door body to be kept in the opening state to prevent the door body from closing and colliding with the body of the user, and after the user takes the articles out of the refrigerator, the object sensor does not sense the articles, and the control system enables the door body to be closed, so that the user does not need to manually close the door body, the convenience in use of the refrigerator is improved, and the problem of forgetting to close the door can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of a control system of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another control system of a refrigerator according to an embodiment of the present invention.
Reference numerals:
101: an object sensor; 102: a control system;
103: an infrared emitter; 104: an infrared receiver;
105: a drive device; 106: a controller;
107: and a positioning device.
Detailed Description
In a first embodiment, referring to fig. 1 and fig. 2, the present invention provides an intelligent refrigerator, including: a box body; the door body is hinged with the box body through a vertical rotating shaft; the object sensor 101 is used for sensing whether an object exists in a set range on the front surface of the box body when the door body is opened; and the control system 102 is connected with the door body and the object sensor 101, and is used for keeping the door body in an open state when the object sensor 101 senses an object and closing the door body when the object sensor 101 does not sense the object.
In this embodiment, when the user opens the refrigerator door and takes the article in the refrigerator, object inductor 101 can sensing to the object, and control system 102 makes the door body keep the open mode to prevent that the door body from closing and colliding user's health, after the user has taken article and leaves the refrigerator, object inductor 101 does not sense to the object, and control system 102 makes the door body close, thereby need not the manual door body of closing of user, has improved the convenience that the refrigerator used, can also avoid forgetting the problem of closing the door.
In a second embodiment, based on the first embodiment, the object sensor 101 includes: the infrared emitter 103 is used for emitting infrared rays to the front surface of the box body within a set range when the door body is opened; the infrared receiver 104 is used for receiving the infrared rays reflected within the set range of the front surface of the box body; correspondingly, the control system 102 is specifically configured to keep the door body in an open state when the infrared receiver 104 receives infrared rays, and close the door body when the infrared receiver 104 does not receive infrared rays. Therefore, when a user opens the refrigerator door to take articles in the refrigerator, the infrared emitter 103 emits infrared rays to the front of the refrigerator body within a set range, the infrared rays are reflected after encountering the body of the user, the infrared receiver 104 can receive the reflected infrared rays, and the control system 102 enables the door body to be kept in an open state so as to prevent the door body from closing and colliding with the body of the user. After the user has taken the article and leaves the refrigerator, the infrared ray of infrared emitter 103 transmission can not take place the reflection, and infrared receiver 104 can not receive the infrared ray this moment, and control system 102 makes the door body is closed to need not the manual door body of closing of user, improved the convenience that the refrigerator used, can also avoid forgetting the problem of closing the door. The object sensor 101 in this embodiment is simple in structure and reliable in use.
In a third embodiment, referring to fig. 1, based on the second embodiment, the control system 102 includes: the driving device 105 is connected with the door body and used for driving the door body to close; and a controller 106 connected to the driving device 105 and the infrared receiver 104, and configured to control the driving device 105 to be turned off when the infrared receiver 104 receives infrared rays, and to control the driving device 105 to be turned on when the infrared receiver 104 does not receive infrared rays. Therefore, when a user opens the refrigerator door to take articles in the refrigerator, the infrared emitter 103 emits infrared rays to the front of the refrigerator body within a set range, the infrared rays are reflected after meeting the body of the user, the infrared receiver 104 can receive the reflected infrared rays at the moment, and the controller 106 controls the driving device 105 to be closed, so that the door body is kept in an open state, and the door body is prevented from being closed and colliding with the body of the user. After the user takes the article and leaves the refrigerator, the infrared ray that infrared emitter 103 launches can not take place the reflection, and infrared receiver 104 can not receive the infrared ray this moment, and controller 106 control drive arrangement 105 opens, and drive arrangement 105 drive door body is closed to need not the manual door body of closing of user, improved the convenience that the refrigerator used, can also avoid forgetting the problem of closing the door. In the embodiment, the door body is driven to close through the driving device 105, and the use is reliable.
The driving device 105 may be a motor, an output end of the motor is connected to the rotating shaft, the rotating shaft may be driven to rotate when the motor is turned on, so as to close the door, and the controller may control the motor to be turned off when the infrared receiver 104 receives the infrared rays, and control the motor to be turned on when the infrared receiver 104 does not receive the infrared rays.
The driving device 105 may also include a motor and a support arm, the motor may be disposed on the box, one end of the support arm is connected to an output end of the motor, and the other end of the support arm is used to contact with the door, and when the motor is turned on, the support arm may be driven to rotate so that the other end of the support arm applies a force to the door, so as to close the door, and the controller may control the motor to be turned off when the infrared receiver 104 receives infrared rays, and control the motor to be turned on when the infrared receiver 104 does not receive infrared rays.
In a fourth embodiment, referring to fig. 2, on the basis of the second embodiment, the intelligent refrigerator further includes: the automatic reset device is connected with the door body and used for driving the door body to close; the control system 102 includes: a positioning device 107 for positioning the door body in an open state and releasing the positioning of the door body in a closed state; and the controller 106 is connected with the positioning device 107 and the infrared receiver 104, and is used for controlling the positioning device 107 to be opened when the infrared receiver 104 receives infrared rays, and controlling the positioning device 107 to be closed when the infrared receiver 104 does not receive infrared rays. Therefore, when a user opens the refrigerator door to take articles in the refrigerator, the infrared emitter 103 emits infrared rays to the front of the refrigerator body within a set range, the infrared rays are reflected after meeting the body of the user, the infrared receiver 104 can receive the reflected infrared rays at the moment, the controller 106 controls the positioning device 107 to be opened, and the positioning device 107 positions the door body to enable the door body to keep an open state, so that the door body is prevented from being closed and colliding with the body of the user. After the user has taken the article and has left the refrigerator, the infrared ray of infrared emitter 103 transmission can not take place the reflection, and infrared receiver 104 can not receive the infrared ray this moment, and controller 106 control positioner 107 closes, and positioner 107 is right relieved the location of the door body, the door body is closed under automatic re-setting device's drive to need not the manual door body of closing of user, improved the convenience that the refrigerator used, can also avoid forgetting the problem of closing the door. The refrigerator in the embodiment positions the door body through the positioning device 107, so that the door body is kept in an open state, and the door body can be driven to close through the automatic resetting device, and the refrigerator is reliable in use.
The positioning device 107 may be a telescopic device disposed on the door or the box, the telescopic device extends out to be supported between the door and the box in an open state to position the door, the telescopic device contracts in a closed state to release the positioning of the door, and the controller 106 is configured to control the telescopic device to be opened when the infrared receiver 104 receives infrared rays, and control the telescopic device to be closed when the infrared receiver 104 does not receive infrared rays.
The positioning device 107 may also be an electromagnet, the electromagnet may be disposed on the box body, the electromagnet is powered on in the open state to generate magnetism, so that the electromagnet or the iron sheet on the door body can be attracted, so that the door body is positioned and kept in the open state, the electromagnet is powered off in the close state, so that the magnetism disappears, and the magnet or the iron sheet on the door body cannot be attracted any more, so that the door body is positioned and is closed under the driving of the automatic resetting device, and the controller 106 is configured to control the electromagnet to be opened when the infrared receiver 104 receives infrared rays, and control the electromagnet to be closed when the infrared receiver 104 does not receive infrared rays.
The automatic reset device can be a torsion spring, the torsion spring can be sleeved on the rotating shaft, the first support arm of the torsion spring is connected with the door body, the second support arm of the torsion spring is connected with the box body, the door body is opened in the process, the first support arm rotates relative to the second support arm, at the moment, the torsion spring generates elastic force due to torsion, and when the positioning device 107 is released from positioning of the door body, the first support arm rotates under the action of the elastic force, so that the door body is driven to be closed.
The automatic reset device can be first magnet, and first magnet can set up on the box, and simultaneously, be equipped with second magnet or iron sheet on the door body, opens the back when the door body, and first magnet can produce magnetic attraction to second magnet or iron sheet to make the door body self-closing under the effect of magnetic attraction.
In the fifth embodiment, the object sensor 101 is disposed inside the door body in addition to the first embodiment. Therefore, when the door body is opened, the object sensor 101 can sense the front surface of the box body within a set range. Because the article that the door body inboard was put is less, the setting of the object inductor 101 of consequently being convenient for, and object inductor 101 is difficult to sheltered from by article, has improved the accuracy of sensing.
In this embodiment, preferably, a storage rack is disposed inside the door body, and the object sensor 101 is disposed on a surface of the storage rack facing away from the door body. Therefore, the object sensor 101 is not easily shielded by the articles placed on the storage rack, and the sensing accuracy is improved. Of course, the object sensor 101 may be disposed on the door panel inside the door body as long as it is not shielded by the storage rack and the objects on the storage rack.
Sixth, in the first embodiment, the object sensor 101 is disposed on an outer surface of the box. Therefore, when the door body is opened, the object sensor 101 can sense the front surface of the box body within a set range. Since the object sensor 101 is disposed on the outer surface of the cabinet, it is not shielded by the articles in the refrigerator, and the sensing accuracy is improved. Of course, the object sensor 101 may be disposed on the inner surface of the cabinet as long as it is not shielded by the articles in the refrigerator.
In this embodiment, preferably, the object sensor 101 is disposed on a surface of the box body, which is used to contact with the door body, and the object sensor 101 is configured to open when the door body and the box body form a first set angle, and open when the door body and the box body form a second set angle, where the first set angle is greater than the second set angle. Wherein, first settlement angle and second settlement angle can be set for according to actual conditions, as long as can guarantee that the door body can leave object inductor 101's sensing scope can, from this, when the door body is opening the in-process and is forming first settlement angle with the box, thereby object inductor 101 opens and can openly set for the within range to the box and carry out the sensing, when the door body is closing the in-process and when the box forms second settlement angle, object inductor 101 closes, thereby can not continue to close the in-process at the door body and sense the door body, the accuracy of sensing has been improved. Because the object sensor 101 is arranged on the surface of the refrigerator body, which is used for being in contact with the door body, no extra space is occupied, and the appearance of the refrigerator is simpler. Of course, object sensor 101 may be located on the side or top of the outer surface of the housing.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. An intelligent refrigerator, comprising:
a box body;
the door body is hinged with the box body through a vertical rotating shaft;
the object sensor is used for sensing whether an object exists in a set range on the front surface of the box body when the door body is opened;
the control system is connected with the door body and the object sensor, and is used for keeping the door body in an open state when the object sensor senses an object and closing the door body when the object sensor does not sense the object;
the object sensor includes:
the infrared emitter is used for emitting infrared rays to the front surface of the box body within a set range when the door body is opened;
the infrared receiver is used for receiving the infrared rays reflected within the set range on the front surface of the box body;
correspondingly, the control system is specifically used for keeping the door body in an open state when the infrared receiver receives infrared rays, and closing the door body when the infrared receiver does not receive infrared rays;
the intelligent refrigerator further comprises:
an automatic reset device, the automatic reset device specifically includes: the torsional spring is connected with the door body and is used for driving the door body to close;
the control system includes:
the positioning device is used for positioning the door body in an opening state and releasing the positioning of the door body in a closing state;
and the controller is connected with the positioning device and the infrared receiver and is used for controlling the positioning device to be opened when the infrared receiver receives infrared rays and controlling the positioning device to be closed when the infrared receiver does not receive the infrared rays.
2. The refrigerator of claim 1, wherein the control system comprises:
the driving device is connected with the door body and used for driving the door body to close;
and the controller is connected with the driving device and the infrared receiver and is used for controlling the driving device to be closed when the infrared receiver receives infrared rays and controlling the driving device to be opened when the infrared receiver does not receive the infrared rays.
3. The refrigerator according to claim 1, wherein the object sensor is disposed inside the door body.
4. The refrigerator according to claim 3, wherein a storage rack is provided inside the door body, and the object sensor is provided on a surface of the storage rack facing away from the door body.
5. The refrigerator of claim 1, wherein the object sensor is disposed on an outer surface of the cabinet.
6. The refrigerator according to claim 5, wherein the object sensor is disposed on a surface of the cabinet for contacting the door, the object sensor is configured to open when the door forms a first predetermined angle with the cabinet and close when the door forms a second predetermined angle with the cabinet, and the first predetermined angle is greater than the second predetermined angle.
CN201510982648.8A 2015-12-23 2015-12-23 Intelligent refrigerator Expired - Fee Related CN106907898B (en)

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Application Number Priority Date Filing Date Title
CN201510982648.8A CN106907898B (en) 2015-12-23 2015-12-23 Intelligent refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510982648.8A CN106907898B (en) 2015-12-23 2015-12-23 Intelligent refrigerator

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CN106907898B true CN106907898B (en) 2020-02-21

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107576133A (en) * 2017-09-22 2018-01-12 合肥华凌股份有限公司 Refrigerator
CN107477976A (en) * 2017-09-28 2017-12-15 北京京东尚科信息技术有限公司 Intelligent refrigerator and the control method for intelligent refrigerator
CN109303536B (en) * 2018-09-21 2023-04-28 珠海格力电器股份有限公司 Apparatus having door body and control method thereof
EP3685707B1 (en) * 2019-01-22 2024-02-28 Carrier Corporation Refrigerated sales cabinet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101634512A (en) * 2008-07-24 2010-01-27 舒适宝控股有限公司 Drive device for refrigerator doors
CN204648806U (en) * 2015-03-04 2015-09-16 青岛海尔科技有限公司 For the door engine of refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252437C (en) * 2001-11-27 2006-04-19 广东科龙电器股份有限公司 Refrigerator door open-close control method and refrigerator using said method
CN201425405Y (en) * 2009-06-09 2010-03-17 海信科龙电器股份有限公司 Automatic detecting device for opening and closing of refrigerator door
CN201724516U (en) * 2010-07-13 2011-01-26 江苏德莱仕电器有限公司 Refrigerator with intelligent opening and closing door
CN102706066A (en) * 2012-06-26 2012-10-03 合肥美的荣事达电冰箱有限公司 Refrigeration equipment
CN202660849U (en) * 2012-08-24 2013-01-09 海信容声(广东)冷柜有限公司 Commercial refrigeration cabinet with infrared sliding door opening/closing control
CN103983081B (en) * 2013-09-11 2016-10-05 史良俊 Refrigerator
CN104329905B (en) * 2014-07-30 2017-01-11 青岛海尔股份有限公司 Refrigerator and method for controlling the refrigerator to open and close door

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101634512A (en) * 2008-07-24 2010-01-27 舒适宝控股有限公司 Drive device for refrigerator doors
CN204648806U (en) * 2015-03-04 2015-09-16 青岛海尔科技有限公司 For the door engine of refrigerator

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