CN102467140A - Ice machine and water-free detection method of water tank thereof - Google Patents

Ice machine and water-free detection method of water tank thereof Download PDF

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Publication number
CN102467140A
CN102467140A CN2010105506153A CN201010550615A CN102467140A CN 102467140 A CN102467140 A CN 102467140A CN 2010105506153 A CN2010105506153 A CN 2010105506153A CN 201010550615 A CN201010550615 A CN 201010550615A CN 102467140 A CN102467140 A CN 102467140A
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temperature
ice making
ice
water tank
mcu
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CN102467140B (en
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夏必聪
季正飞
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Taizhou LG Electronics Refrigeration Co Ltd
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Taizhou LG Electronics Refrigeration Co Ltd
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Abstract

The invention discloses an ice machine and a water-free detection method of a water tank thereof. The ice machine comprises an ice-making box controlling module, a water inlet controller controlling module, a temperature judging module and an MCU (Microprogrammed Control Unit), wherein the temperature judging module is used for receiving and processing temperature data generated by a temperature sensor according to a preset temperature acquisition time interval and detecting whether the processed temperature data is in a preset temperature threshold or not; the MCU is used for detecting the ice making state of an ice-making box, receiving the temperature processing data of the temperature judging module, controlling the water inlet controller controlling module and the ice-making box controlling module and setting the temperature acquisition time interval and the temperature threshold of the temperature judging module; and whether water exists in the water tank or not is judged by utilizing a temperature sensor provided by ice machine per se and through detecting the temperature change in the inflow process of the ice machine. According to the invention, while the water-free detection is completed, any sensor hardware circuit is not needed to be added on the water tank, therefore, the complexity degree of refrigerator manufacturing is reduced and the cost is effectively saved.

Description

The anhydrous detection method of ice machine and water tank thereof
Technical field
The present invention relates to the anhydrous detection method of a kind of ice machine and water tank thereof, particularly relate to a kind of ice machine and anhydrous detection method of water tank thereof that is used for refrigerator.
Background technology
The life in summer all be unable to do without the demand to ice everywhere.To the daily ice amount of average family, for reach do not need the specialty ice machine also can satisfy average family daily ice demand and satisfy client to the household electrical appliance requirement of multifunction day by day, attached ice machine on the refrigerator.No matter be the ice machine of which kind of type, its ice-making process all be unable to do without water filling, freezes, leaves this three big step of ice.Manual ice making, two kinds of forms of automatic ice-making are arranged in the market.Automatic ice-making is time saving and energy saving, and use makes things convenient for customers.
The action of the ice machine of above-mentioned automatic ice-making mode whether control mode has two kinds; That is, the one, not perception water tank has anhydrous, and ice machine regularly moves; Accomplish water filling, freeze, the ice pan upset deices a series of processes; The 2nd, it is anhydrous to utilize gravity or other sensor senses water tanks to have, and anhydrous like water tank, then ice machine is failure to actuate.Wherein not perception water tank has anhydrous; Thereby the ice making method that ice machine regularly moves can cause ice-making disc to dally repeatedly to deice the serviceable life that has a strong impact on ice machine; Though and utilize gravity or other sensor senses water tanks to have anhydrous ice making method to solve the problem of ice machine idle running; But needing increases extra sensor hardware circuit, has improved the difficulty that refrigerator is made, and makes the manufacturing cost of refrigerator rise.
Summary of the invention
The technical matters that the present invention will solve is that anhydrous detection need increase corresponding sensor hardware circuit in the prior art in order to overcome; Improved the defective of the manufacturing cost of difficulty that refrigerator makes and refrigerator; Provide a kind of ice machine and water tank thereof anhydrous detection method; The anhydrous detection method of this ice machine and water tank thereof need not increase the sensor hardware circuit, and can accomplish same anhydrous measuring ability.
The present invention solves above-mentioned technical matters through following technical proposals:
A kind of ice machine, this ice machine comprise a water tank, a water inlet controller, an ice making box, an ice making switch and a temperature sensor, and its characteristics are that this ice machine also comprises:
One ice making box control module is used to control the ice making action of ice making box;
One water inlet controller control module is used to control the opening and closing of water inlet controller;
One temperature judge module is used for according to the temperature data that the preset temperature acquisition time interval receives and temperature sensor produces, and detects temperature data after handling whether in preset temperature threshold; And
One MCU; Be used to detect the on off state of ice making switch, the Temperature Treatment data that receive the temperature judge module and control water inlet controller control module, ice making box control module and ice making switch, and the temperature acquisition time interval and the temperature threshold of design temperature judge module.
Preferably, this ice machine also comprises an ice making switch, is used to export the ice making duty of ice machine, and this MCU also is used to gather and control the ice making duty of the ice machine of this ice making switch output.
Preferably, this water inlet controller is a water valve or water pump, and this water valve is connected with ice making box with water tank respectively, and perhaps this water pump is connected with ice making box with water tank respectively.
Preferably, this ice machine also comprises:
One suggestion device is used for sending the anhydrous information of water tank to the user.
Preferably, this MCU also is used for sending the anhydrous information of water tank to this suggestion device.
Preferably, this suggestion device is a display, and this display is electrically connected with MCU.
Preferably, the described temperature acquisition time interval is 60～300 seconds.
Preferably, described temperature threshold is 5～10 ℃.
Preferably, described ice machine is arranged in the refrigerator, and whether the refrigerator doors that described MCU also is used to detect this refrigerator opens.
The present invention also provides a kind of anhydrous detection method of water tank like above-mentioned ice machine, is characterized in may further comprise the steps:
S 101, MCU is to temperature judge module input temp acquisition time interval T and temperature threshold T t
S 102, MCU opens the water inlet controller through water inlet controller control module and imports water from water tank to ice making box;
S 103, temperature judge module first temperature of gathering ice making box through temperature sensor;
S 104, temperature judge module second temperature of gathering ice making box according to preset temperature acquisition time interval T through temperature sensor;
S 105, the temperature judge module calculates the temperature gap of this second temperature and first temperature, and whether detects this temperature gap less than the temperature threshold T that presets t, if testing result is for being then to return step S 103, otherwise get into step S 106
S 106, MCU closes into the water controller and makes ice making box begin ice making through the ice making box control module through water inlet controller control module;
S 107, detect the ice making state of ice making box, accomplish if the ice making state is ice making, then get into step S 108, otherwise repeating step S 107
S 108, MCU stops the ice making of ice making box through the ice making box control module.
Preferably, T is 60～300 seconds this temperature acquisition time interval.
Preferably, this temperature threshold T tIt is 5～10 ℃.
Preferably, described ice machine comprises that also a suggestion device and MCU also are used for sending the anhydrous information of water tank to this suggestion device, at step S 105In further comprising the steps of:
MCU sends the anhydrous information of water tank to this suggestion device, and this suggestion device sends the anhydrous information of water tank to the user.
Preferably, described ice machine is arranged in the refrigerator, and whether the refrigerator doors that described MCU also is used to detect this refrigerator open, at step S 105In further comprising the steps of:
S 1051, whether the MCU refrigerator doors that detects refrigerator open, if testing result is not for, repeating step S then 1051, otherwise return step S 103
Preferably, described ice machine also comprises an ice making switch, is used to export the ice making duty of ice machine, and this MCU also is used to gather and control the ice making duty of the ice machine of this ice making switch output, and at step S 101Afterwards with step S 102Further comprising the steps of before:
S 1011, whether the MCU ice making duty that detects the output of ice making switch be in opening, if testing result is for being then to get into step S 102, otherwise repeating step S 1011
Preferably, at step S 108Further comprising the steps of afterwards:
MCU makes the ice making duty of ice making switch output be in closed condition, and returns step S 1011
Positive progressive effect of the present invention is:
Through the temperature sensor that utilizes ice making machine pf refrigerator self to have,, judge whether water tank has water through detecting the temperature variation in the ice machine water inlet process.Thereby when accomplishing anhydrous detection, need not reduce the complexity of refrigerator manufacturing and effectively practice thrift cost at any sensor hardware circuit of extra increase.
Description of drawings
Fig. 1 is the circuit structure block diagram of ice machine preferred embodiment of the present invention.
Fig. 2 is the process flow diagram of anhydrous detection method first embodiment of ice machine water tank of the present invention.
Fig. 3 is the process flow diagram of anhydrous detection method second embodiment of ice machine water tank of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
The embodiment of ice machine of the present invention:
The circuit structure block diagram of ice machine as shown in Figure 1, wherein this ice machine comprises a water tank 1, an ice making box 2, a water inlet controller 3, an ice making box control module 4, a water inlet controller control module 5, a temperature sensor 6, a temperature judge module 7, a MCU8 (microcontroller), an ice making switch 9 and a suggestion device 10.Wherein MCU8 is electrically connected with ice making box control module 4, water inlet controller control module 5, temperature judge module 7, ice making switch 9 and a suggestion device 10 respectively; Temperature sensor 6 is electrically connected with temperature judge module 7 and ice making box 2 respectively; Water inlet controller control module 5 is electrically connected with water inlet controller 3, and ice making control module 4 is electrically connected with ice making box 2.
And; Said ice making box control module 4 is used to control the ice making action of ice making box 2; Described water inlet controller control module 5 is used to control the opening and closing of water inlet controller 3; Described temperature judge module 7 is used for the temperature data according to preset temperature acquisition time interval T reception and temperature sensor 6 generations, and detects the temperature threshold the T whether temperature data after handling is being preset tIn; Ice making duty and the ice making state of ice making box 2, the Temperature Treatment data that receive temperature judge module 7 and the control that said MCU8 is used to detect the ice machine of ice making switch 9 outputs intake controller control module 5, ice making box control module 4 and ice making switch 9 and the temperature acquisition time interval T and the temperature threshold T of design temperature judge module 7 tWith send the anhydrous information of water tanks to suggestion device 10; Said temperature sensor 6 is used to detect the temperature of ice making box 2; Whether said water inlet controller 3 is used to control water tank 1 to ice making box 2 water fillings, and described suggestion device 10 is used for sending the anhydrous information of water tank to the user.
In addition; When the ice machine in the present embodiment is arranged in the refrigerator; Whether described MCU8 also is used to detect the refrigerator doors of this refrigerator and opens, if testing result for otherwise the refrigerator doors that continues to detect this refrigerator whether open, thereby whether feed-tank adds water to detection user that can be indirect.
Wherein described in the present embodiment water inlet controller 3 can adopt water valve or water pump; Those skilled in the art can select for use other device to accomplish the function of identical water inlet control with needs according to the demand of reality; And the suggestion device in the present embodiment 10 can adopt display screen; Those skilled in the art can select for use other device to accomplish identical prompting user's function with needs according to the demand of reality, reminds user's water tank anhydrous like alarm song.In addition, the water tank 1 in the present embodiment, ice making box 2, temperature sensor 6 and ice making switch 9 are prior art, and those skilled in the art can select for use different devices, element and unit to accomplish function corresponding according to actual needs.
The scope of preferred this temperature acquisition time interval T that presets is 60～300 seconds in this instance in addition; Temperature threshold T tScope be 5～10 ℃.
The principle of work of the ice machine in the present embodiment is following:
The user changes after the ice making duty of output of ice making switch 9, and after ice making duty that MCU8 detects 9 outputs of ice making switch was opening, MCU8 was to temperature judge module 7 input temp acquisition time interval T and temperature threshold T t, for example (T, T t) be (60sec; 5 ℃) or (120sec, 7 ℃) or (300sec, 10 ℃) etc.; Open water inlet controller 3 through water inlet controller control module 5 then; Thereby make the water in the water tank 1 inject ice making box 2, meanwhile, temperature judge module 7 detects first temperature T of ice making box 2 through temperature sensor 6 1
After this, behind process temperature acquisition time interval T, temperature judge module 7 detects second temperature T of ice making box 2 once more through temperature sensor 6 2, temperature judge module 7 calculates this second temperature T then 2With first temperature T 1Temperature gap Δ T, i.e. Δ T=(T 2-T 1), after this temperature judge module 7 is with this temperature gap Δ T and temperature threshold T tCompare, and comparative result is sent to MCU8.
Then, MCU8 detects this comparative result, if temperature gap Δ T is less than temperature threshold T t, then MCU8 closes into water controller 3 through water inlet controller control module 5, and MCU8 also sends the anhydrous information of water tank to suggestion device 10 in addition, and this suggestion device 10 sends the anhydrous information of water tank to the user; If temperature gap Δ T is more than or equal to temperature threshold T t, then MCU8 makes ice making box 2 begin ice makings through ice making box control module 4.
After this MCU8 detects the ice making state of ice making box; If being ice making, accomplishes the ice making state; Then making ice making box 2 stop ice making through ice making box control module 4 and making the ice making duty of ice making switch 9 outputs is closed condition, otherwise continues to detect the ice making state of ice making box.
In addition, when placing refrigerator, also comprise in the work of ice machine: when MCU8 detected temperatures comparative result, if temperature gap Δ T is less than temperature threshold T as if the ice machine in the present embodiment t, whether this MCU8 also detects the refrigerator doors of refrigerator and opens, if testing result is for being; Be that the indirect user that detects has added water for the water tank of ice machine; MCU8 carries out temperature acquisition and corresponding action thereafter once more then, if whether testing result then detects the refrigerator doors of refrigerator once more and open for not.Other job step is identical with above-mentioned ice machine job step, just repeats no more here.
First embodiment of the anhydrous detection method of ice machine water tank of the present invention:
Shown in Figure 2 is the first embodiment process flow diagram of the anhydrous detection method of ice machine water tank of the present invention, comprising following steps:
Step 100, MCU is to temperature judge module input temp acquisition time interval T and temperature threshold T t, for example (T, T t) be (60sec, 5 ℃) or (120sec, 7 ℃) or (300sec, 10 ℃) etc.
Step 101, MCU opens the water inlet controller through water inlet controller control module, imports water from water tank to ice making box.
Step 102, temperature judge module are gathered first temperature T of ice making box through temperature sensor 1
Step 103, temperature judge module are gathered second temperature T of ice making box through temperature sensor according to preset temperature acquisition time interval T 2
Step 104, the temperature judge module calculates the temperature gap Δ T of this second temperature and first temperature, i.e. Δ T=(T 2-T 1), and whether detect this temperature gap Δ T less than preset temperature threshold T t,, otherwise get into step 105 if testing result for being, is then returned step 102.
Step 105, MCU closes into the water controller and makes ice making box begin ice making through the ice making box control module through water inlet controller control module.
Step 106, MCU detects the ice making state of ice making box, if detected ice making state is the ice making completion status, then gets into step 107, otherwise repeating step 106.
Step 107, MCU makes ice making box stop ice making through the ice making box control module and returns step 101 then.
Second embodiment of the anhydrous detection method of ice machine water tank of the present invention:
The process flow diagram of second embodiment for the water tank anhydrous detection method of ice machine of the present invention when being arranged in the refrigerator shown in Figure 3, comprising following steps:
Step 100, MCU is to temperature judge module input temp acquisition time interval T and temperature threshold T t, for example (T, T t) be (60sec, 5 ℃) or (120sec, 7 ℃) or (300sec, 10 ℃) etc.
Step 101, whether the ice making duty that MCU detects the output of ice making switch is in opening, if testing result for being, then gets into step 102, otherwise repeating step 101.
Step 102, MCU opens the water inlet controller through water inlet controller control module, imports water from water tank to ice making box, and the temperature judge module is gathered first temperature T of ice making box through temperature sensor 1
Step 103, temperature judge module are gathered second temperature T of ice making box through temperature sensor according to preset temperature acquisition time interval T 2
Step 104, the temperature judge module calculates the temperature gap Δ T of this second temperature and first temperature, i.e. Δ T=(T 2-T 1), and whether detect this temperature gap Δ T less than preset temperature threshold T t,, otherwise get into step 107 if testing result for being, then gets into step 105.
Step 105, MCU sends the anhydrous information of water tank to this suggestion device, and this suggestion device sends the anhydrous information of water tank to the user.
Step 106, whether MCU detects the refrigerator doors of refrigerator and opens, if testing result for being, is then returned step 102, otherwise repeating step 106.
Step 107, MCU closes into the water controller and makes ice making box begin ice making through the ice making box control module through water inlet controller control module.
Step 108, MCU detects the ice making state of ice making box, if detected ice making state is the ice making completion status, then gets into step 109, otherwise repeating step 108.
Step 109, MCU is in closed condition through the ice making duty that the ice making box control module makes ice making box stop ice making and the output of ice making switch, returns step 101 then.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.

Claims (16)

1. ice machine, this ice machine comprise a water tank, water inlet controller, an ice making box and a temperature sensor, it is characterized in that this ice machine also comprises:
One ice making box control module is used to control the ice making action of ice making box;
One water inlet controller control module is used to control the opening and closing of water inlet controller;
One temperature judge module is used for according to the temperature data that the preset temperature acquisition time interval receives and temperature sensor produces, and detects temperature data after handling whether in preset temperature threshold; And
One MCU is used to detect the ice making state of ice making box, the Temperature Treatment data that receive the temperature judge module and control water inlet controller control module and ice making box control module, and the temperature acquisition time interval and the temperature threshold of design temperature judge module.
2. ice machine as claimed in claim 1 is characterized in that, this ice machine also comprises an ice making switch, is used to export the ice making duty of ice machine, and this MCU also is used to gather and control the ice making duty of the ice machine of this ice making switch output.
3. ice machine as claimed in claim 1 is characterized in that, this water inlet controller is a water valve or water pump, and this water valve is connected with ice making box with water tank respectively, and perhaps this water pump is connected with ice making box with water tank respectively.
4. ice machine as claimed in claim 1 is characterized in that, this ice machine also comprises:
One suggestion device is used for sending the anhydrous information of water tank to the user.
5. ice machine as claimed in claim 4 is characterized in that, this MCU also is used for sending the anhydrous information of water tank to this suggestion device.
6. ice machine as claimed in claim 5 is characterized in that, this suggestion device is a display, and this display is electrically connected with MCU.
7. ice machine as claimed in claim 1 is characterized in that, the described temperature acquisition time interval is 60～300 seconds.
8. ice machine as claimed in claim 1 is characterized in that, described temperature threshold is 5～10 ℃.
9. ice machine as claimed in claim 1 is characterized in that described ice machine is arranged in the refrigerator, and whether the refrigerator doors that described MCU also is used to detect this refrigerator opens.
10. the anhydrous detection method of the water tank of an ice machine as claimed in claim 1 is characterized in that, may further comprise the steps:
S 101, MCU is to temperature judge module input temp acquisition time interval T and temperature threshold T t
S 102, MCU opens the water inlet controller through water inlet controller control module, imports water from water tank to ice making box;
S 103, temperature judge module first temperature of gathering ice making box through temperature sensor;
S 104, temperature judge module second temperature of gathering ice making box according to preset temperature acquisition time interval T through temperature sensor;
S 105, the temperature judge module calculates the temperature gap of this second temperature and first temperature, and whether detects this temperature gap less than the temperature threshold T that presets t, if testing result is for being then to return step S 103, otherwise get into step S 106
S 106, MCU closes into the water controller and makes ice making box begin ice making through the ice making box control module through water inlet controller control module;
S 107, detect the ice making state of ice making box, accomplish if the ice making state is ice making, then get into step S 108, otherwise repeating step S 107
S 108, MCU stops the ice making of ice making box through the ice making box control module.
11. the anhydrous detection method of water tank as claimed in claim 10 is characterized in that, this temperature acquisition time interval, T was 60～300 seconds.
12. the anhydrous detection method of water tank as claimed in claim 10 is characterized in that, this temperature threshold T tIt is 5～10 ℃.
13. the anhydrous detection method of water tank as claimed in claim 10 is characterized in that, described ice machine comprises that also a suggestion device and MCU also are used for sending the anhydrous information of water tank to this suggestion device, at step S 105In further comprising the steps of:
MCU sends the anhydrous information of water tank to this suggestion device, and this suggestion device sends the anhydrous information of water tank to the user.
14. the anhydrous detection method of water tank as claimed in claim 10 is characterized in that described ice machine is arranged in the refrigerator, and whether the refrigerator doors that described MCU also is used to detect this refrigerator open, at step S 105In further comprising the steps of:
S 1051, whether the MCU refrigerator doors that detects refrigerator open, if testing result is not for, repeating step S then 1051, otherwise return step S 103
15. the anhydrous detection method of water tank as claimed in claim 10; It is characterized in that described ice machine also comprises an ice making switch, be used to export the ice making duty of ice machine; This MCU also is used to gather and control the ice making duty of the ice machine of this ice making switch output, and at step S 101Afterwards with step S 102Further comprising the steps of before:
S 1011, whether the MCU ice making duty that detects the output of ice making switch be in opening, if testing result is for being then to get into step S 102, otherwise repeating step S 1011
16. the anhydrous detection method of water tank as claimed in claim 15 is characterized in that, at step S 108Further comprising the steps of afterwards:
MCU makes the ice making duty of ice making switch output be in closed condition, and returns step S 1011
CN201010550615.3A 2010-11-19 2010-11-19 Ice machine and water-free detection method of water tank thereof Active CN102467140B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107148232A (en) * 2014-11-11 2017-09-08 皇家飞利浦有限公司 Beverage and food temperature regulation
CN107763914A (en) * 2017-08-30 2018-03-06 青岛海尔股份有限公司 refrigerator ice-making control method
CN111238103A (en) * 2016-12-16 2020-06-05 芜湖美的厨卫电器制造有限公司 Ice maker, water level detection device thereof and water level detection method thereof
CN111664625A (en) * 2019-03-08 2020-09-15 松下电器研究开发(苏州)有限公司 Refrigerator with a door

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JPH0493571A (en) * 1990-08-10 1992-03-26 Sanyo Electric Co Ltd Refrigerator
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KR20060003397A (en) * 2004-07-06 2006-01-11 주식회사 대창 Water supplying control apparutus for a ice maker and control method thereof
US7703292B2 (en) * 2006-07-28 2010-04-27 General Electric Company Apparatus and method for increasing ice production rate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0493571A (en) * 1990-08-10 1992-03-26 Sanyo Electric Co Ltd Refrigerator
JPH05306860A (en) * 1992-04-30 1993-11-19 Toshiba Corp Automatic ice making device
CN1690631A (en) * 2004-04-23 2005-11-02 三星电子株式会社 Refrigerator and controlling method thereof
KR20060003397A (en) * 2004-07-06 2006-01-11 주식회사 대창 Water supplying control apparutus for a ice maker and control method thereof
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107148232A (en) * 2014-11-11 2017-09-08 皇家飞利浦有限公司 Beverage and food temperature regulation
CN107148232B (en) * 2014-11-11 2019-08-06 皇家飞利浦有限公司 Beverage and food temperature are adjusted
CN111238103A (en) * 2016-12-16 2020-06-05 芜湖美的厨卫电器制造有限公司 Ice maker, water level detection device thereof and water level detection method thereof
CN111238103B (en) * 2016-12-16 2022-02-22 芜湖美的厨卫电器制造有限公司 Ice maker, water level detection device thereof and water level detection method thereof
CN107763914A (en) * 2017-08-30 2018-03-06 青岛海尔股份有限公司 refrigerator ice-making control method
WO2019042333A1 (en) * 2017-08-30 2019-03-07 青岛海尔股份有限公司 Ice making control method for refrigerator
CN111664625A (en) * 2019-03-08 2020-09-15 松下电器研究开发(苏州)有限公司 Refrigerator with a door
CN111664625B (en) * 2019-03-08 2022-05-31 松下电器研究开发(苏州)有限公司 Refrigerator with a door

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