CN112378163A - Alarm device for unclosed refrigerator door and reminding method thereof - Google Patents
Alarm device for unclosed refrigerator door and reminding method thereof Download PDFInfo
- Publication number
- CN112378163A CN112378163A CN202011312808.5A CN202011312808A CN112378163A CN 112378163 A CN112378163 A CN 112378163A CN 202011312808 A CN202011312808 A CN 202011312808A CN 112378163 A CN112378163 A CN 112378163A
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- China
- Prior art keywords
- air pressure
- door
- magnetic stripe
- refrigerator
- refrigerator door
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Classifications
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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
- F25D29/008—Alarm devices
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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
- F25D23/00—General constructional features
- F25D23/08—Parts formed wholly or mainly of plastics materials
- F25D23/082—Strips
- F25D23/087—Sealing strips
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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
- F25D29/005—Mounting of control 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
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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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses an alarm device for an unclosed refrigerator door and a reminding method thereof, and relates to the technical field of refrigerators. The invention comprises a refrigerator door body and a door seal magnetic stripe; the door seal magnetic stripe is arranged on the inner side of the refrigerator door body and is of an air bag-shaped hollow airtight structure; an air pressure sensing device; the air pressure sensing device is fixed in an air bag of the door seal magnetic stripe; a sensor processing circuit; an alarm prompter. According to the invention, after the door seal magnetic stripe is magnetically attracted, the air in the door seal magnetic stripe air bag can be pressed, so that the air pressure in the door seal magnetic stripe air bag is increased, an air pressure sensor senses an air pressure signal and transmits the air pressure signal to the sensor processing circuit, the air pressure signal is processed by the processing circuit and is judged by a preset air pressure threshold value, and if the air pressure signal is greater than the preset air pressure threshold value, the door of the refrigerator is reliably closed; if the preset air pressure threshold value cannot be reached, the refrigerator door cannot be closed reliably, or the door seal magnetic stripe is damaged and leaks air, the alarm prompter gives out a prompt, the structure is simple, the manufacturing cost is relatively low, the design and the manufacturing are easy to realize, and the practicability is high.
Description
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to an alarm device for an unclosed refrigerator door and a reminding method thereof.
Background
In order to keep the interior of the refrigerator at a low temperature, the refrigerator and a door provided on the refrigerator are closed without storing and taking articles. The door seal magnetic strips are embedded around the frame of the box door, and the box body and the box door are closed by means of the close absorption of the door seal magnetic strips and the opening surface of the box body made of metal plates, so that the heat exchange between the inside and the outside of the box body is prevented. When storing and taking articles, a user can open the box door by pulling the door handle by force and overcoming the attraction between the box door and the box body by the pulling force. After the articles are stored and taken out, the box door is pushed to a closed position, and the box door and the box body are tightly attracted together by virtue of the attraction of the door seal magnetic stripe.
However, when the user closes the door, the door is often "closed falsely" due to the door being pushed out of place, that is, the door is basically at the closed position, but the door seal magnetic stripe is not attracted to the box body. The phenomenon is not easy to be discovered by a user, so that the door seal leaks cold for a long time, the temperature in the box body rises, the temperature in the box body can not be ensured to meet the set requirement, and icing and condensation are easy to cause; in addition, the 'virtual closing' of the box door can also cause the compressor to be in a starting state for a long time, and huge waste of energy is caused.
The existing electric control refrigerator generally has a door opening reminding function, and the principle is that a door switch arranged on the refrigerator is utilized to judge the state of a door, and an electric control board sends a reminding sound to a user after detecting that the door switch is in a closed door state and reaches a preset time. However, the door switch, whether a mechanical switch or a reed switch or other door switches, has a certain travel, usually from several millimeters to ten and several millimeters, i.e., the door switch is already closed when the door is virtually opened, so that the door opening reminding function is disabled. In addition, after the refrigerator is used for a long time, the prior art can not detect the damage and deformation of the door frame or the door seal magnetic strip.
Disclosure of Invention
The invention aims to provide an alarm device for the non-closing of a refrigerator door and a reminding method thereof, wherein after being magnetically attracted by a door seal magnetic stripe on a refrigerator body, gas in a door seal magnetic stripe air bag can be pressed, so that the gas pressure in the door seal magnetic stripe air bag is increased, a gas pressure sensor transmits a sensed gas pressure signal to a sensor processing circuit, the sensed gas pressure signal is processed by the processing circuit and is judged by a preset gas pressure threshold value, and if the sensed gas pressure signal is larger than the preset gas pressure threshold value, the refrigerator is judged to be in a normal working state and the refrigerator door is reliably closed; if door seals magnetic stripe gasbag internal gas pressure and can not reach predetermined atmospheric pressure threshold value, then explain the refrigerator door and do not reliably close, perhaps door seals the magnetic stripe and has damaged gas leakage, sends reputation suggestion user chamber door and reliably closes or door seals the magnetic stripe and have the damage to warp by the warning prompting device, simple structure, cost of manufacture is cheap relatively, and easy design and preparation realize, and the practicality is strong.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an alarm device for the unclosed refrigerator door, which comprises a refrigerator door body; a door seal magnetic strip; the door seal magnetic strip is arranged on the inner side of the refrigerator door body and is of an air sac-shaped hollow airtight structure; an air pressure sensing device; the air pressure sensing device is fixed in the air bag of the door seal magnetic stripe and used for detecting the air pressure inside the air bag of the door seal magnetic stripe; a sensor processing circuit; the sensor processing circuit receives an original signal of the air pressure sensing device, and the original signal is filtered, conditioned and amplified and then is judged and compared with a preset air pressure threshold; an alarm prompter; the alarm prompter is connected with the air pressure sensing device through the sensor processing circuit and carries out alarm reminding according to the result of the sensor processing circuit.
Furthermore, the gas in the door seal magnetic stripe air bag is not communicated with the external air of the refrigerator, so that the effects of slowing down the heat exchange with the outside and reducing the loss of cold energy are achieved.
Further, the air pressure sensing device is an air pressure sensor.
Further, the air pressure sensing device is an air pressure switch.
A reminding method of an alarm device for the unclosed refrigerator door comprises the following steps:
s01: presetting an air pressure threshold P1, judging whether the air pressure P2 in the door seal magnetic stripe air bag exceeds P1, if so, entering step S02, and if not, entering step S03;
s02: the refrigerator is in a normal working state and the door body of the refrigerator is reliably closed;
s03: the refrigerator door is not closed reliably, and the alarm prompter gives out sound and light prompt to remind the user.
Further, the alarm prompting device is connected with the indicating lamp, the buzzer or the Wi-Fi module and used for prompting a user.
Further, the air pressure threshold P1 is 1.1 atmospheres.
The invention has the following beneficial effects:
according to the refrigerator door sealing magnetic strip air bag, the air pressure sensing device and the alarm prompter are arranged, the door sealing magnetic strip on the refrigerator body is magnetically attracted and then presses the air in the door sealing magnetic strip air bag, so that the air pressure in the door sealing magnetic strip air bag is increased, the air pressure sensor senses an air pressure signal and transmits the air pressure signal to the sensor processing circuit, the air pressure signal is processed by the processing circuit and is judged by the preset air pressure threshold, and if the air pressure signal is greater than the preset air pressure threshold, the refrigerator door can be judged to be in a normal; if door seals magnetic stripe gasbag internal gas pressure and can not reach predetermined atmospheric pressure threshold value, then explain the refrigerator door and do not reliably close, perhaps door seals the magnetic stripe and has damaged gas leakage, sends reputation suggestion user chamber door and reliably closes or door seals the magnetic stripe and have the damage to warp by the warning prompting device, simple structure, cost of manufacture is cheap relatively, and easy design and preparation realize, and the practicality is strong.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an alarm device for an unclosed refrigerator door of the present invention;
FIG. 2 is a connection diagram of an alarm device when the refrigerator door is not closed;
FIG. 3 is a flow chart of a method for reminding the alarm device when the refrigerator door is not closed;
in the drawings, the components represented by the respective reference numerals are listed below:
1-refrigerator body, 200-refrigerator door body, 300-door seal magnetic stripe and 301-air pressure sensing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "outer", "upper", "lower", "middle", "length", "inner", and the like, indicate orientations or positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
Referring to fig. 1, the present invention is an alarm device for an unclosed refrigerator door, including a refrigerator door 200 and a refrigerator body 100, further including:
a door seal magnetic stripe 300; the door seal magnetic stripe 300 is arranged on the inner side of the refrigerator door body 200, and the door seal magnetic stripe 300 is of an air-bag-shaped hollow airtight structure; an air pressure sensing device 301; the air pressure sensing device 301 is fixed in the air bag of the door seal magnetic stripe 300 through gluing or clamping and is used for detecting the air pressure inside the air bag 300 of the door seal magnetic stripe; the gas in the air bag of the door seal magnetic stripe 300 is not communicated with the external air of the refrigerator, and the door seal magnetic stripe 300 plays a role in slowing down the heat exchange with the outside and reducing the loss of cold energy after being attracted with the refrigerator body 100; a sensor processing circuit; the sensor processing circuit receives an original signal of the air pressure sensing device 301, and the original signal is filtered, conditioned and amplified and then is judged and compared with a preset air pressure threshold; an alarm prompter; referring to fig. 2, the alarm prompter is connected to the air pressure sensing device 301 through the sensor processing circuit, and performs alarm prompting according to the result of the sensor processing circuit.
Preferably, the air pressure sensing device 301 is an air pressure sensor.
The principle of the alarm device for the unclosed refrigerator door is as follows: when the refrigerator door 200 is reliably closed, the door seal magnetic stripe 300 is attracted with the refrigerator body 100, the refrigerator door 200 and the refrigerator body 100 are mutually extruded, so that the air pressure sensed by the air pressure sensor 301 in the air bag of the door seal magnetic stripe 300 is increased, the original signal of the air pressure sensor 301 is filtered, conditioned and amplified by the sensor processing circuit, and then is judged and compared with a preset air pressure threshold value, and if the original signal is greater than the air pressure threshold value, the refrigerator door 200 is considered to be reliably closed. When the refrigerator door body 200 is not closed reliably or the door seal magnetic stripe is damaged and deformed, the air pressure sensed by the air pressure sensor 301 in the air bag of the door seal magnetic stripe 300 has no obvious change, and cannot reach the preset air pressure threshold value in the sensor processing circuit, so that the refrigerator door body 200 can be judged to be closed reliably, and the alarm prompter is pushed to send an alarm prompt.
Referring to fig. 3, a method for reminding an alarm device that a refrigerator door is not closed includes the following steps:
s01: presetting an air pressure threshold P1, preferably 1.1 atmosphere P1, judging whether the air pressure P2 in the air bag of the door seal magnetic stripe 300 exceeds P1, if so, going to step S02, and if not, going to step S03;
s02: the refrigerator is in a normal working state and the refrigerator door body 200 is reliably closed;
s03: the refrigerator door is not closed reliably, and the alarm prompter gives out sound and light prompt to remind the user.
Preferably, the alarm prompting device, the indicator lamp, the buzzer or the Wi-Fi module push messages to the mobile phone APP and the like to inform a user that the refrigerator door is not closed tightly.
Example two
Referring to fig. 1, the present invention is an alarm device for an unclosed refrigerator door, including a refrigerator door 200 and a refrigerator body 100, further including:
a door seal magnetic stripe 300; the door seal magnetic stripe 300 is arranged on the inner side of the refrigerator door body 200, and the door seal magnetic stripe 300 is of an air-bag-shaped hollow airtight structure; an air pressure sensing device 301; the air pressure sensing device 301 is fixed in the air bag of the door seal magnetic stripe 300 through gluing or clamping and is used for detecting the air pressure inside the air bag 300 of the door seal magnetic stripe; the gas in the air bag of the door seal magnetic stripe 300 is not communicated with the external air of the refrigerator, and the door seal magnetic stripe 300 plays a role in slowing down the heat exchange with the outside and reducing the loss of cold energy after being attracted with the refrigerator body 100; a sensor processing circuit; the sensor processing circuit receives an original signal of the air pressure sensing device 301, and the original signal is filtered, conditioned and amplified and then is judged and compared with a preset air pressure threshold; an alarm prompter; referring to fig. 2, the alarm prompter is connected to the air pressure sensing device 301 through the sensor processing circuit, and performs alarm prompting according to the result of the sensor processing circuit.
Preferably, the air pressure sensing device 301 is an air pressure switch that is numerically calibrated, preferably to 1.1 atmospheres, which can simplify the design of the sensor processing circuitry and can reduce cost.
The method for reminding the alarm device that the refrigerator door is not closed is the same as the first embodiment, and the description is omitted here.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides an alarm device that refrigerator door was not closed, includes refrigerator door (200), its characterized in that: further comprising:
a dock seal magnetic stripe (300); the door seal magnetic strip (300) is arranged on the inner side of the refrigerator door body (200), and the door seal magnetic strip (300) is of an air bag-shaped hollow airtight structure;
an air pressure sensing device (301); the air pressure sensing device (301) is fixed in the air bag of the door seal magnetic stripe (300) and is used for detecting the air pressure inside the door seal magnetic stripe air bag (300);
a sensor processing circuit; the sensor processing circuit receives an original signal of the air pressure sensing device (301), and the original signal is filtered, conditioned and amplified and then is judged and compared with a preset air pressure threshold;
an alarm prompter; the alarm prompter is connected with the air pressure sensing device (301) through a sensor processing circuit, and carries out alarm reminding according to the result of the sensor processing circuit.
2. The device for alarming the non-closing of the refrigerator door as claimed in claim 1, wherein the air in the air bag of the door sealing magnetic stripe (300) is not communicated with the outside air of the refrigerator, so as to play the roles of slowing down the heat exchange with the outside and reducing the loss of cold energy.
3. A refrigerator door non-closing alarm device as claimed in claim 1, wherein said air pressure sensing means (301) is an air pressure sensor.
4. A refrigerator door non-closing alarm device as claimed in claim 1, wherein said air pressure sensing means (301) is an air pressure switch.
5. A method for reminding a warning device that a refrigerator door is not closed according to any one of claims 1 to 4, comprising the following steps:
s01: presetting an air pressure threshold P1, judging whether the air pressure P2 in the air bag of the door seal magnetic stripe (300) exceeds P1, if so, entering step S02, and if not, entering step S03;
s02: the refrigerator is in a normal working state and the refrigerator door body (200) is reliably closed;
s03: the refrigerator door is not closed reliably, and the alarm prompter gives out sound and light prompt to remind the user.
6. The method for reminding the alarm device that the refrigerator door is not closed according to claim 5, wherein the alarm prompter is connected with an indicator lamp, a buzzer or a Wi-Fi module and is used for reminding a user.
7. A method for reminding a warning device that a refrigerator door is not closed according to claim 5, wherein the air pressure threshold P1 is 1.1 atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312808.5A CN112378163A (en) | 2020-11-20 | 2020-11-20 | Alarm device for unclosed refrigerator door and reminding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312808.5A CN112378163A (en) | 2020-11-20 | 2020-11-20 | Alarm device for unclosed refrigerator door and reminding method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112378163A true CN112378163A (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011312808.5A Pending CN112378163A (en) | 2020-11-20 | 2020-11-20 | Alarm device for unclosed refrigerator door and reminding method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN112378163A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060987A (en) * | 1999-05-06 | 2000-05-09 | Marlia; Kim | Retrofittable device to warn of refrigerator door-ajar condition |
| CN203908200U (en) * | 2014-06-28 | 2014-10-29 | 西安科技大学 | Non-tight closing alarm device for refrigerator door |
| CN104329906A (en) * | 2014-11-21 | 2015-02-04 | 合肥美的电冰箱有限公司 | Door closing reminding device and refrigerator |
| CN105737511A (en) * | 2016-05-07 | 2016-07-06 | 康丰生 | Refrigerator with function of door closing prompt |
| CN205505553U (en) * | 2016-01-28 | 2016-08-24 | 四川长虹电器股份有限公司 | Alarm device that warning refrigerator men wei closed |
-
2020
- 2020-11-20 CN CN202011312808.5A patent/CN112378163A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6060987A (en) * | 1999-05-06 | 2000-05-09 | Marlia; Kim | Retrofittable device to warn of refrigerator door-ajar condition |
| CN203908200U (en) * | 2014-06-28 | 2014-10-29 | 西安科技大学 | Non-tight closing alarm device for refrigerator door |
| CN104329906A (en) * | 2014-11-21 | 2015-02-04 | 合肥美的电冰箱有限公司 | Door closing reminding device and refrigerator |
| CN205505553U (en) * | 2016-01-28 | 2016-08-24 | 四川长虹电器股份有限公司 | Alarm device that warning refrigerator men wei closed |
| CN105737511A (en) * | 2016-05-07 | 2016-07-06 | 康丰生 | Refrigerator with function of door closing prompt |
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Application publication date: 20210219 |
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| RJ01 | Rejection of invention patent application after publication |