CN206037932U - System ice device is with ice thickness check circuit - Google Patents
System ice device is with ice thickness check circuit Download PDFInfo
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- CN206037932U CN206037932U CN201621061518.7U CN201621061518U CN206037932U CN 206037932 U CN206037932 U CN 206037932U CN 201621061518 U CN201621061518 U CN 201621061518U CN 206037932 U CN206037932 U CN 206037932U
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Abstract
The utility model discloses a system ice device is with ice thickness check circuit, detection circuitry includes: two at least probes, every the probe is configured as according to the rigidity corresponding with ice sheet thickness, alternating current pulse signal output circuit, with probe as the signal input probe in the probe passes through pin connection, feedback signal receiving circuit, with probe as the signal output probe in the probe passes through pin connection, receives alternating current pulse signal warp as the probe of signal input probe with feedback signal as output after the probe of signal output probe, ice thickness degree decision circuit is used for at least basis the range of alternating current pulse signal the ice thickness degree is judged to feedback signal's the range and the corresponding relation of probe and ice sheet thickness. Use the utility model discloses, the realization improves accuracy and reliability to ice thickness check to the direct detection of ice thickness degree.
Description
Technical field
The utility model belongs to ice maker technology, specifically, is to be related to ice maker ice thickness detection circuit.
Background technology
Refrigeration mode water dispenser or other there is ice maker similar devices on, due to freeze needs, it usually needs
Keep certain thickness ice to guarantee that refrigeration is optimal, accordingly, it would be desirable to detect refrigerator pipes（Equivalent to evaporimeter）Nearby freeze
Thickness.
Conventional art means are not the thickness of direct detection ice, but using the method for temperature detection, when temperature reaches one
During definite value, it is believed that and thickness meets requirement, stops refrigeration.Easily there are two problems in this method control：
One is a variety of causes of the deviation due to sensor and water itself, it may appear that situation about can not freeze；
Two is a variety of causes of the deviation due to sensor and water itself, it may appear that the feelings of whole cold water chamber freeze over
Condition；
And both of these case can all have a strong impact on user and use frozen water.
The content of the invention
The purpose of this utility model is to provide a kind of ice maker ice thickness detection circuit, using resistance measurement means reality
The direct detection of existing ice thickness, improves accuracy and reliability to ice thickness detection.
For realizing above-mentioned utility model purpose, the ice maker that the utility model is provided ice thickness detection circuit is using under
State technical scheme to be achieved：
A kind of ice maker detects circuit with ice thickness, and the detection circuit includes：
At least two probes, each described probe are respectively connected with lead, and each described probe is configured to according to known
, the position corresponding with ice layer thickness fix；
Pulse signal output circuit, is connected by lead with the probe in the probe as signal input probe,
The pulse signal is transmitted to the probe as signal input probe；
Feedback signal reception circuit, is connected by lead with the probe in the probe as signal output probe, is received
Described in pulse signal Jing as the probe and the probe as signal output probe of signal input probe after
The feedback signal of output；
Ice thickness decision circuit, for the alternating-current pulse exported according at least to the pulse signal output circuit
The amplitude of the feedback signal that the amplitude of signal, the feedback signal reception circuit are received and probe are corresponding with ice layer thickness
Relation judges ice thickness.
Detection circuit as above, the detection circuit also include：
Temperature sensing circuit, for detecting the temperature of the ice maker, and the temperature is transmitted to the ice thickness
Decision circuit；
The exchange that the ice thickness decision circuit is exported according to the temperature, the pulse signal output circuit
The amplitude of the feedback signal that the amplitude of pulse signal, the feedback signal reception circuit are received and the probe and ice sheet thickness
The corresponding relation of degree judges ice thickness.
Detection circuit as above, the detection circuit also include：
Communicating circuit, is connected with the ice thickness decision circuit, for externally exporting sentencing for the ice thickness decision circuit
Determine result.
Detection circuit as above, the AC-AC output of pulse signal circuit include：
Positive output terminal, exports the positive pulse signal of certain frequency；
Negative output terminal, exports the undersuing of the certain frequency；
Capacitance, one end are connected with the positive output terminal；
Divider resistance, one end are connected with the negative output terminal, and the other end is connected with the other end of the capacitance；
Probe in the probe as signal input probe is connected to the capacitance with the partial pressure by lead
Between resistance.
Detection circuit as above, the ice thickness decision circuit include：
Signal amplitude processing unit, for comparing the amplitude of the pulse signal and the amplitude of the feedback signal,
Determine changes in amplitude of the feedback signal relative to the pulse signal；
Resistance determining unit, for according at least to the feedback signal relative to the pulse signal changes in amplitude
Determine the resistance between the probe as signal input probe and the probe as signal output probe；
Ice thickness determining unit, judges described defeated as signal for the resistance according to determined by the resistance determining unit
Whether the medium entered between the probe of probe and the probe as signal output probe is ice, and according to as signal input
The probe of probe and the probe as signal output probe determine ice thickness with the corresponding relation of ice layer thickness.
Compared with prior art, advantage of the present utility model and good effect are：The ice thickness inspection that the utility model is provided
In slowdown monitoring circuit, by arranging the probe corresponding with ice layer thickness, what is obtained by applying pulse signal to probe is anti-
Feedback signal judges whether the medium of probe present position is ice, realizes the direct detection to ice thickness, and detection means is simply easy
OK, the reliability and accuracy of testing result are higher.
After specific embodiment of the present utility model is read in conjunction with the accompanying, other features of the present utility model and advantage will become
Obtain clearer.
Description of the drawings
Fig. 1 is the theory diagram for detecting circuit one embodiment based on the utility model ice maker ice thickness；
Fig. 2 is the theory diagram for detecting second embodiment of circuit based on the utility model ice maker ice thickness；
Fig. 3 is the circuit theory diagrams for detecting the 3rd embodiment of circuit based on the utility model ice maker ice thickness；
Fig. 4 is the probe arrangement for detecting the 4th embodiment of circuit based on the utility model ice maker ice thickness
Figure；
Fig. 5 is the probe arrangement for detecting the 5th embodiment of circuit based on the utility model ice maker ice thickness
Figure；
Fig. 6 is the probe arrangement for detecting the 6th embodiment of circuit based on the utility model ice maker ice thickness
Figure.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below with reference to accompanying drawing and reality
Example is applied, the utility model is described in further detail.
First, briefly explain the general principle that the utility model realizes the detection of ice maker ice thickness：
Jing is studied and is tested and finds, the resistance of ice and water（Conductance）Difference is larger.For certain thickness water, Huo Zheshui
With the mixture of ice, resistance is several kilohms to more than 100 kilohms；And for the ice of same thickness, resistance can increase to several million
Ohm.Based on the principle, it may be considered that determine whether certain position is ice by way of measuring resistance.The measurement of resistance can be with
Characterized by the attenuation amplitude between input signal and output signal.And pass through to predict ice sheet thickness corresponding to certain position
Degree, then can realize the detection to ice thickness.
Fig. 1 is referred to, the figure is shown based on the utility model ice maker ice thickness detection first enforcement of circuit
The theory diagram of example.
As shown in figure 1, the detection circuit of the embodiment includes pulse signal output circuit 11, probe 12, feedback
13 grades of ice thickness decision circuits 14 of signal receiving circuit.Wherein, probe 12 includes at least two, can correspond at least one
Ice thickness, and probe 12 includes the probe and the probe as signal output probe as signal input probe.Each probe
12 are respectively connected with lead, and each probe 12 is configured to fix according to known, corresponding with ice layer thickness position.Exchange
Output of pulse signal circuit 11 is connected by the lead of the probe with the probe in probe 12 as signal input probe, will exchange
Pulse signal transmission to this as signal input probe probe.As signal in feedback signal reception circuit 13, with probe 12
The probe of output probe is connected by the lead, and pulse signal Jing for receiving 11 output of pulse signal output circuit is made
The feedback signal exported after probe for signal input probe and the probe as signal output probe.Ice thickness decision circuit
14, the amplitude of the pulse signal for being exported according to pulse signal output circuit 11, feedback signal reception circuit 13
The amplitude of the feedback signal of reception and probe 12 judge ice thickness with the corresponding relation of ice layer thickness.
As described by front general principle, by the multiple probes in probe 12 in advance according to known, relative with ice layer thickness
The position answered is fixed.Typically, it is near the refrigerator pipes being fixed in refrigerating plant, keeping at a certain distance away with refrigerator pipes.Lift
For example, if two probes, two probes are arranged on into the same side of refrigerator pipes according to the mode parallel with refrigerator pipes, and
Two probe separation certain distances are arranged, and one near apart from refrigerator pipes, and another refrigerator pipes is remote.So, farthest probe and system
The distance between cold pipe is exactly the ice thickness that can determine using two probes.It is additionally, since pulse signal to be applied to
As on a probe of signal input probe, then, the feedback exported from another probe as signal output probe
Signal will be a signal related to the medium between the pulse signal of input and two probes, specifically with two
A related signal of the resistance of the medium between individual probe.And as the size of resistance has reacted the difference of medium, then ice thickness
The amplitude of the pulse signal that degree decision circuit 14 is exported according to pulse signal output circuit 11 and feedback signal reception
The amplitude of the feedback signal that circuit 13 is received can judge whether the medium between two probes is ice.In conjunction with probe and ice
The corresponding relation of thickness degree, you can determine ice thickness.And, the detection circuit using the embodiment is by then passing through detection ice
Parameter realize direct detection to ice thickness, the reliability and accuracy of testing result is higher, and detects that circuit structure is simple,
Easily realize.
Fig. 2 is referred to, the figure is shown based on the utility model ice maker ice thickness detection second enforcement of circuit
The theory diagram of example.
As shown in Fig. 2 the detection circuit of the embodiment includes pulse signal output circuit 21, probe 22, feedback
Signal receiving circuit 23, ice thickness decision circuit 24, temperature sensing circuit 25 and communicating circuit 26.Pulse signal output electricity
Annexation and function between road 21, probe 22 and feedback signal reception circuit 23 is similar with Fig. 1 embodiments, refers to Fig. 1
The description of embodiment.And temperature sensing circuit 25 is used for detecting the temperature of ice maker, and temperature is transmitted to ice thickness judgement
Circuit 24；Communicating circuit 26 is connected with ice thickness decision circuit 24, for the judgement knot of externally output ice thickness decision circuit 24
Really, for example, to host computer or monitor terminal transmission result of determination.It is big that setting temperature sensing circuit 25 is primarily directed to temperature change
Refrigerating plant, correction is compensated by temperature to testing result, reducing affects the mistake of dielectric resistance change because of temperature change
Difference.For communicating circuit 26, communicating circuit structure commonly used in the prior art can be selected as needed, for example, using UART
Deng.
And, for ice thickness decision circuit 24 includes that the signal amplitude processing unit 241, resistance being sequentially connected determines list
First 242 grades of ice thickness determining units 243.Wherein, signal amplitude processing unit 241 is used for comparing pulse signal output circuit
The amplitude of the pulse signal of 21 outputs and the amplitude of the feedback signal of the output of feedback signal reception circuit 23, determine feedback
Changes in amplitude of the signal relative to pulse signal.Resistance determines Unit 242 for exporting according to temperature sensing circuit 25
The feedback signal of temperature and the output of signal amplitude processing unit 241 determines conduct relative to the changes in amplitude of pulse signal
The probe of signal input probe and as the resistance between the probe of signal output probe.And ice thickness determining unit 243 is used for
The resistance according to determined by resistance determining unit 242 is judged as the probe of signal input probe and as signal output probe
Whether the medium between probe is ice, and according to the probe as signal input probe and the probe as signal output probe with
The corresponding relation of ice layer thickness determines ice thickness.
If it should be understood that for the ice thickness with temperature sensing circuit 25 does not detect circuit, resistance is true
Order unit 242 only needs the changes in amplitude according to feedback signal relative to pulse signal to determine as signal input probe
Probe and as the resistance between the probe of signal output probe.
Fig. 3 is referred to, is based on the utility model ice maker ice thickness detection the 3rd enforcement of circuit shown in the figure
The circuit theory diagrams of example.
As schematically shown in Figure 3, integrated chips of the IC1 as detection circuit core, realizes that primary signal output, feedback signal are adopted
Collection, feedback signal process, ice thickness judgement and output of result of determination etc..
CN1 is communicating circuit and power supply circuits interface.Communicating circuit has two, and one is and the UART mouths as IC1
The UART communication interfaces that P01 terminals and P02 terminals are formed, another is the triode being connected with an I/O port P16 terminal of IC1
The pulse width communication interface formed by N1.One of communication modes are selected according to actual needs can
Connector interfaces of the CN2 for probe, the lead of probe are connected on interface CN2, and then pass through CN2 and IC1
Connection.
NTC1 is temperature sensor interface, detects that the temperature sensor of ice maker temperature passes through the interface and corresponding temperature
Degree Acquisition Circuit is connected with the temperature acquisition terminal AIN16 of IC1.
Positive output terminal of the P10 mouths of IC1 as pulse signal output circuit, exports the positive pulse letter of certain frequency
Number, and P11 mouths export the undersuing of same frequency as the negative output terminal of pulse signal output circuit.Every straight electricity
Hold the modulate circuit that C3 and divider resistance R6 constitute pulse signal, C3 one end is connected with positive output terminal P10, the other end and
One end connection of divider resistance R6, the other end of divider resistance R6 are connected with negative output terminal P11.In capacitance C3 and partial pressure
Pulse signal will be exported between resistance R6, and CN2 will be connected to by lead as the probe of signal input probe within the probe
On interface, and then it is connected between capacitance C3 and divider resistance R6, to obtain pulse signal input.Handed over by adopting
Input signal of the signal pulse stream as probe, can avoid the water in detected refrigerating plant polarized and affect detection accurate
The problem of true property.
The P20 terminals of IC1 be used for detect Jing capacitance C3 and divider resistance R6 conditioning after pulse signal, namely
The real input signal being input on probe.The P21 terminals of IC1, P22 terminals and P23 terminals be ADC input terminals, for
Probe in probe as signal output probe is connected, and receives the feedback signal of probe.
Using above-mentioned detection circuit, with reference to certain processing method, it is possible to achieve the detection to ice maker ice thickness.
Circuit is detected based on aforesaid ice thickness, it is right to realize using the ice thickness detection method for including following step
The detection of ice thickness：
To the probe transmission pulse signal as signal input probe.
Export as the probe of signal output probe, pulse signal Jing is obtained as the probe of signal input probe
With the feedback signal after the probe as signal output probe.
The corresponding relation of the amplitude of amplitude, feedback signal according at least to pulse signal and probe and ice layer thickness is sentenced
Determine ice thickness.
Wherein, probe at least two, and all probes are configured to according to known, corresponding with ice layer thickness position
Put and fix.Specifically, it is integrally fixed at around the refrigerator pipes of ice maker.
As previously indicated, using above-mentioned steps, by the multiple probes in probe in advance according to it is known, with ice layer thickness phase
Corresponding position is fixed.Pulse signal is applied to as on a probe of signal input probe, then, from another
The feedback signal exported on probe as signal output probe will be between the pulse signal and two probes being input into
The related signal of medium, specifically related to the resistance of the medium between a two probes signal.And by
The difference of medium has been reacted in the size of resistance, then can determine whether according to the amplitude of the amplitude and feedback signal of pulse signal
Whether the medium gone out between two probes is ice.In conjunction with probe and the corresponding relation of ice layer thickness, you can determine ice thickness.
And, using the detection method of the embodiment by direct detection of the parameter realization of detection ice to ice thickness is then passed through, detect
As a result reliability and accuracy is higher, and detection method is simple, easily realizes.
Alternatively embodiment, if ice maker temperature change is big, is to reduce temperature change to testing result
The impact of accuracy, preferably also detect ice maker temperature, and the amplitude according to the temperature, pulse signal for being detected,
The amplitude of feedback signal and probe judge ice thickness with the corresponding relation of ice layer thickness.
Alternatively embodiment, ice thickness detection method also includes will be the detection result of determination of ice thickness also external
Output.
Amplitude, feedback letter as a kind of specific embodiment, after feedback signal is got, according to pulse signal
Number amplitude and the corresponding relation of probe and ice layer thickness judge implementing for ice thickness, comprise the steps：
Relatively the amplitude of pulse signal and the amplitude of feedback signal, determine that feedback signal is believed relative to alternating-current pulse
Number changes in amplitude.
Spy as signal input probe is determined according to changes in amplitude of institute's feedback signal relative to pulse signal
Pin and as the resistance between the probe of signal output probe.
In actual applications, the corresponding relation that experiment predefines changes in amplitude and resistance value can be passed through, and correspondence is closed
System forms the form of table.Then, when in use, by the method tabled look-up it is known that the corresponding detection of current amplitude change
The current resistance of medium.
Medium between judging the probe as signal input probe and the probe as signal output probe according to resistance
Whether it is ice, and it is according to the probe as signal input probe and corresponding with ice layer thickness as the probe of signal output probe
Relation determines ice thickness.
In actual applications, the resistance of ice is known, and probe is also known with the corresponding relation of ice layer thickness.That
, after resistance is obtained, it is possible to judge whether the medium corresponding to the probe location for currently being detected is ice.Judging
For ice when, current ice thickness can determine that according to the corresponding relation of probe and ice layer thickness.
The detection method of ice thickness is expanded on further below using three examples.
Fig. 4 is referred to, the figure is shown based on the utility model ice maker ice thickness detection the 4th enforcement of circuit
The probe arrangement figure of example.
As shown in figure 4, being arranged side by side the first probe 62 and the second probe 63 in 61 side of refrigerator pipes, the two probes are each
From connection leaded 64.Using the two probes, corresponding detection circuit is added, it can be determined that go out whether ice layer thickness reaches finger
Determine thickness.Specifically, the two probes are fixed in the position corresponding with appointed thickness, for example, apart from refrigerator pipes 61 away from
With a distance from for appointed thickness, the two probes are fixed at place.During detection, using aforesaid circuit structure and method, if it is decided that first
It is ice between probe 62 and the second probe 63, then judges that ice thickness reaches appointed thickness.
Fig. 5 is referred to, the figure is shown based on the utility model ice maker ice thickness detection the 5th enforcement of circuit
The probe arrangement figure of example.
As shown in figure 5,72 second probe 73 of the first probe and the 3rd probe 74 has been arranged side by side in 71 side of refrigerator pipes, this
Three probes are respectively connected with lead 75.Using these three probes, corresponding detection circuit is added, it can be determined that go out ice layer thickness
Whether appointed thickness is reached, and it is possible to exclude the interference of bubble.Specifically, it is solid in the position corresponding with appointed thickness
Fixed these three probes, for example, are fixing these three probes apart from refrigerator pipes 71 at for appointed thickness distance respectively.Detection
When, using aforesaid circuit structure and method, if it is decided that be ice between the first probe 72 and the second probe 73, or judge the
It is ice between two probes 73 and the 3rd probe 74, then judges that ice thickness reaches appointed thickness.By constituting two using three probes
Individual probe groups, even if there is probe groups to be judged as water, as long as another probe is judged to ice, then it is assumed that for bubble, in fact ice
Thickness has reached appointed thickness.
Fig. 6 is referred to, the figure is shown based on the utility model ice maker ice thickness detection the 6th enforcement of circuit
The probe arrangement figure of example.
As shown in fig. 6, being arranged side by side 6 probes, respectively the first probe 82, the second probe in the side of refrigerator pipes 81
83rd, the 3rd probe 84, the 4th probe 85, the 5th probe 86 and the 6th probe 87.This six probes according to apart from refrigerator pipes 81 by
Proximal and distal order is arranged in order, and is respectively connected with lead 88.And, in this six probes, per two adjacent probe structures
Into probe groups.Specifically, the first probe 82 and the second probe 83 constitute probe groups, and the first probe 82 is used as signal
Input probe, the second probe 83 is used as signal output probe；3rd probe 84 and one probe groups of composition of the 4th probe 85, the 3rd
, used as signal input probe, the 4th probe 85 is used as signal output probe for probe 84；5th probe 86 and the 6th probe 87 are constituted
One probe groups, used as signal input probe, the 6th probe 87 is used as signal output probe for the 5th probe 86.This six probes according to
The secondary position according to corresponding to ice thickness and fix.Wherein, the 6th probe 87 is capable of detecting when with the distance of refrigerator pipes 81
The maximum of ice thickness.Plus corresponding detection circuit, by whether detecting the medium between two probes in every group of probe
For ice, then ice thickness can be determined in conjunction with the position of probe.
In this embodiment, make successively to judge according to the order with the distance of refrigerator pipes from the close-by examples to those far off, specifically using following
Method realizes the detection of ice thickness：
82 input AC pulse signal of the first probe is given first, obtains the feedback signal of the output of the second probe 83；According to friendship
The amplitude of the amplitude and feedback signal of signal pulse stream determines the resistance between the first probe 82 and the second probe 83, according to electricity
Resistance judges whether the medium between the first probe 82 and the second probe 83 is ice.It is if ice, according to same processing procedure then right
Medium between 3rd probe 84 and the 4th probe 85 is made to judge.If finally judged between the 5th probe 86 and the 6th probe 87
Medium also be ice, then judge ice thickness reached maximum gauge.
And during judgement, if judging medium according to the resistance of medium between two probes of first probe groups
It is not ice, then, show ice thickness less than the minimum thickness that can be detected.And if in two probes of middle probe groups
Between medium be water, then, the medium between two probes in probe groups before two probes must be ice（Due to pressing
Judged according to order from the close-by examples to those far off）, and which is the probe groups apart from a farthest medium of refrigerator pipes for ice.So,
Ice thickness is determined according to the probe in the probe groups apart from a farthest medium of refrigerator pipes for ice and the corresponding relation of ice layer thickness
Degree.
As the order preferred embodiment, being first according to the distance of refrigerator pipes from the close-by examples to those far off, according to resistance successively
Judge whether the medium in probe groups between the probe as signal input probe and the probe as signal output probe is ice.
Find the probe groups that first medium is not ice.
Judge first medium be not ice probe groups all probe groups below in medium between two probes whether
It is not ice.
If first medium be not ice probe groups all probe groups below in medium between two probes be not
Ice, then be not that probe groups adjacent before the probe groups of ice are defined as apart from a farthest medium of refrigerator pipes by first medium
It is for the probe groups of ice and right with ice layer thickness according to the probe in the probe groups apart from a farthest medium of refrigerator pipes for ice
Determination ice thickness should be related to.
If first medium be not ice probe groups all probe groups below in medium between two probes also have ice,
Show that this is not the bubble in the medium possibly ice of ice, then find the probe groups that next medium is not ice, continue to judge, directly
To the probe groups determined apart from a farthest medium of refrigerator pipes for ice, and according to apart from a farthest medium of refrigerator pipes it is
Probe in the probe groups of ice determines ice thickness with the corresponding relation of ice layer thickness.
That is, in actual applications, as freezing process can be along with the generation of bubble.If bubble is just in two
Between probe, judgment accuracy can be affected.For solving the problem, the impact judged to ice thickness is reduced as far as possible, is being determined
First is not off detection when not being ice, and is to continue with making judgement process, to determine the actual thickness of ice.
Above example is only illustrating the technical solution of the utility model, rather than is limited；Although with reference to front
State embodiment to be described in detail the utility model, for the person of ordinary skill of the art, still can be right
Technical scheme described in previous embodiment is modified, or carries out equivalent to which part technical characteristic；And these
Modification is replaced, do not make the essence of appropriate technical solution depart from the utility model technical scheme required for protection spirit and
Scope.
Claims (5)
1. a kind of ice maker detects circuit with ice thickness, it is characterised in that the detection circuit includes：
At least two probes, each described probe are respectively connected with lead, and each described probe be configured to according to it is known, and
The corresponding position of ice layer thickness is fixed；
Pulse signal output circuit, is connected by lead with the probe in the probe as signal input probe, by institute
State pulse signal to transmit to the probe as signal input probe；
Feedback signal reception circuit, is connected by lead with the probe in the probe as signal output probe, receives described
Export as after the probe and the probe as signal output probe of signal input probe described in pulse signal Jing
Feedback signal；
Ice thickness decision circuit, for the pulse signal exported according at least to the pulse signal output circuit
Amplitude, the feedback signal reception circuit receive the feedback signal amplitude and the corresponding relation of probe and ice layer thickness
Judge ice thickness.
2. detection circuit according to claim 1, it is characterised in that the detection circuit also includes：
Temperature sensing circuit, for detecting the temperature of the ice maker, and the temperature is transmitted to ice thickness judgement
Circuit；
The alternating-current pulse that the ice thickness decision circuit is exported according to the temperature, the pulse signal output circuit
The amplitude of the feedback signal that the amplitude of signal, the feedback signal reception circuit are received and the probe and ice layer thickness
Corresponding relation judges ice thickness.
3. detection circuit according to claim 1, it is characterised in that the detection circuit also includes：
Communicating circuit, is connected with the ice thickness decision circuit, and the judgement for externally exporting the ice thickness decision circuit is tied
Really.
4. detection circuit according to any one of claim 1 to 3, it is characterised in that the pulse signal output
Circuit includes：
Positive output terminal, exports the positive pulse signal of certain frequency；
Negative output terminal, exports the undersuing of the certain frequency；
Capacitance, one end are connected with the positive output terminal；
Divider resistance, one end are connected with the negative output terminal, and the other end is connected with the other end of the capacitance；
Probe in the probe as signal input probe is connected to the capacitance with the divider resistance by lead
Between.
5. detection circuit according to any one of claim 1 to 3, it is characterised in that the ice thickness decision circuit bag
Include：
Signal amplitude processing unit, for comparing the amplitude of the pulse signal and the amplitude of the feedback signal, it is determined that
Go out changes in amplitude of the feedback signal relative to the pulse signal；
Resistance determining unit, determines for the changes in amplitude according at least to the feedback signal relative to the pulse signal
The resistance gone out between the probe as signal input probe and the probe as signal output probe；
Ice thickness determining unit, judges described as signal input spy for the resistance according to determined by the resistance determining unit
Whether the medium between the probe of pin and the probe as signal output probe is ice, and according to as signal input probe
Probe and the corresponding relation of the probe as signal output probe and ice layer thickness determine ice thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061518.7U CN206037932U (en) | 2016-09-19 | 2016-09-19 | System ice device is with ice thickness check circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061518.7U CN206037932U (en) | 2016-09-19 | 2016-09-19 | System ice device is with ice thickness check circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206037932U true CN206037932U (en) | 2017-03-22 |
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ID=58295712
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621061518.7U Active CN206037932U (en) | 2016-09-19 | 2016-09-19 | System ice device is with ice thickness check circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289038A (en) * | 2016-09-19 | 2017-01-04 | 柳玉翠 | Ice maker ice thickness testing circuit and detection method |
| TWI749211B (en) * | 2017-04-12 | 2021-12-11 | 愛爾蘭商Ｗｌｉ貿易公司 | Ice bath, method of measuring ice build up therein, and use of the same |
-
2016
- 2016-09-19 CN CN201621061518.7U patent/CN206037932U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289038A (en) * | 2016-09-19 | 2017-01-04 | 柳玉翠 | Ice maker ice thickness testing circuit and detection method |
| CN106289038B (en) * | 2016-09-19 | 2019-08-09 | 柳玉翠 | Ice maker ice thickness detection circuit and detection method |
| TWI749211B (en) * | 2017-04-12 | 2021-12-11 | 愛爾蘭商Ｗｌｉ貿易公司 | Ice bath, method of measuring ice build up therein, and use of the same |
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Effective date of registration: 20200109 Address after: No. 101-17 and 18, 1st floor, e zone, Industrial Technology Research Institute, No. 17, Songyuan Road, high tech Zone, Qingdao City, Shandong Province, 266000 Patentee after: Qingdao Ronghe Information Technology Co., Ltd Address before: 266101, No. 19, Haier Road, Laoshan District, Shandong, Qingdao Patentee before: Liu Yucui |