CN102435145B - The sensor of sensing frost thickness, the refrigerator with the sensor and method of work - Google Patents
The sensor of sensing frost thickness, the refrigerator with the sensor and method of work Download PDFInfo
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- CN102435145B CN102435145B CN201110330784.0A CN201110330784A CN102435145B CN 102435145 B CN102435145 B CN 102435145B CN 201110330784 A CN201110330784 A CN 201110330784A CN 102435145 B CN102435145 B CN 102435145B
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- sensor
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- evaporator
- shell
- cool guide
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Abstract
The present invention relates to a kind of sensor of sensing frost thickness, the refrigerator with the sensor and method of work, it is that a sensor is installed on the evaporator of refrigerator, frost thickness to simulate and perceive the evaporator, and then according to the defrost of frost thickness automatic control and adjustment refrigerator.Overall structure of the present invention is simple, and accuracy of detection is high, while the present invention utilizes sensor senses evaporator of refrigerator surface frosting thickness, and then controls refrigerator to carry out defrost.It is not present on evaporator of refrigerator surface in the case of frosting and unnecessary defrost, the time interval for delaying heating tube to heat realizes defrost on demand, both the only defrost in the case where evaporator needs defrost, saves electrical source consumption.
Description
Technical field
The present invention relates to a kind of sensor of sensing frost thickness, the refrigerator with the sensor and method of work, belong to
Refrigerator manufacturing technology field.
Background technology
Existing air cooling type refrigerator, inside drives air to realize that evaporator and the heat in refrigerator storage space are handed over using fan
Change.The heat in air is taken away in refrigerant flowing in evaporator, while because evaporator fin coil temperature is relatively low, the water in air
Divide and condense into frost on coil pipe and fin.With the increase of frosting degree, evaporator heat exchanger effectiveness is begun to decline.So air-cooled
Formula refrigerator is after operation a period of time, and compressor can be out of service, and the defrost heating tube near evaporator is begun to warm up,
Melt the frost of evaporator surface attachment.Temperature sensor near defrost heating tube work stipulated time or evaporator perceives temperature
Degree is higher than after setting value, shows that the frost of evaporator surface melts and eliminates.Compressor is reworked, and maintains the setting of storage space
Temperature.
Existing refrigerator defrost mode, using timing defrost, 8 hours or so the defrost heating tubes in interval are carried out after start operation
Work, in the case that environment or refrigerator inside humidity are small, evaporator surface does not have frosting.In the case where frost is few,
Evaporator spot temperature uphill process can quickly reach the temperature of defrost termination, but this will also result in storage compartment temperature rising, shadow
Ring storage quality and increase energy consumption.
The content of the invention
Present invention is primarily aimed at solving the above problems and not enough there is provided a kind of sensor of sensing frost thickness, no
But it is simple in construction, and accuracy of detection is high.
The present invention another main purpose be there is provided a kind of refrigerator with the sensor, can be with accurate detection
Frost thickness, makes refrigerator defrost on demand, saves electrical source consumption.
Another main purpose of the present invention is that there is provided a kind of method of work of above-mentioned refrigerator.
To achieve the above object, the technical scheme is that：
A kind of sensor of sensing frost thickness, including shell, the process circuit that is arranged in the shell and be arranged on
Two pedestals are relatively set with jack-plug socket on the shell, the shell, are divided on the opposite face of two pedestals
Do not fix at least one cool guide sheet, there is simulation frosting portion at least one described pedestal, the simulation frosting portion with it is described
Cool guide sheet is connected, and the position in the correspondence simulation frosting portion is oppositely arranged light transmitting terminal and light-receiving on two pedestals
End, the smooth transmitting terminal and optical receiving end are connected with the process circuit.
Further, the cool guide sheet is 4, fixes two cool guide sheets on each pedestal, described in two of homonymy
Gap is left between cool guide sheet, the gap is the simulation frosting portion.
Further, the cool guide sheet extends on the outside of the pedestal, and its part extended out is that can be connected to evaporation
Buckle structure on device coil pipe.
Further, at least one fixing hole for being used to fix the sensor is provided with the housing.
The present invention another technical scheme be：
A kind of refrigerator with the sensor, is provided with the sensing for sensing frost thickness on evaporator of refrigerator
Device, the sensor includes shell, the jack-plug socket of the process circuit being arranged in the shell and setting on the housing,
Two pedestals are relatively set with the shell, a few cool guide sheet is individually secured on the opposite face of two pedestals,
There is simulation frosting portion at least one described pedestal, the simulation frosting portion is connected with the cool guide sheet, described in two
The position in the correspondence simulation frosting portion is oppositely arranged light transmitting terminal and optical receiving end, the smooth transmitting terminal and light-receiving on pedestal
End is connected with the process circuit.
Further, the sensor is arranged on the first row coil pipe of the anterior air intake position of the evaporator, or is arranged on
On last row's coil pipe.
Further, the sensor is fixed on two coil pipes adjacent in the evaporator by the cool guide sheet
On.
Further, it is fixedly connected, or is pasted by screw between the shell of the sensor and the end plate of the evaporator
Fix, or buckle is fixedly connected.
The present invention another technical scheme be：
A kind of method of work of refrigerator, installs a sensor on the evaporator of refrigerator, to simulate and perceive the steaming
The frost thickness of device is sent out, and then according to the defrost of frost thickness automatic control and adjustment refrigerator.
Further, there is simulation frosting portion on the sensor, pass through the light wave through simulation frosting portion frost layer
Number, to judge the thickness of frost layer.
To sum up content, a kind of sensor of sensing frost thickness of the present invention and the refrigerator with the sensor and
Method of work, overall structure is simple, by setting simulation frosting portion to detect frost thickness in the sensor, improves the sensing
The accuracy of detection of device.The present invention instead of the pattern that existing utilization Fixed Time Interval controls defrost simultaneously, utilize sensor
Evaporator of refrigerator surface frosting thickness is perceived, and then controls refrigerator to carry out defrost.Evaporator of refrigerator surface be not present frosting and
In the case of unnecessary defrost, the time interval for delaying heating tube to heat realizes defrost on demand, both only needs defrost in evaporator
In the case of defrost, save electrical source consumption.
Brief description of the drawings
Fig. 1 is evaporation structure schematic diagram of the present invention；
Fig. 2 is Fig. 1 A direction views；
Fig. 3 is inventive sensor structural representation；
Fig. 4 is the cross-sectional view of inventive sensor；
Fig. 5 is Fig. 3 B direction views；
Fig. 6 is inventive sensor circuit theory diagrams.
As shown in Figures 1 to 6, evaporator 1, sensor 2, shell 3, process circuit 4, jack-plug socket 5, fixing hole 6, end plate
7, coil pipe 8, pedestal 9,10, cool guide sheet 11,12,13,14, gap 15,16, fin 17, light transmitting terminal 18, optical receiving end 19.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, a kind of refrigerator, installation, which fixes one, on evaporator 1 can simulate and perceive the frost of frosting
The sensor 2 of thickness degree.Sensor 2 can be fixed on the coil pipe 8 of the optional position of evaporator 1, in the present embodiment, passed
Sensor 2 is preferably fixed on the first row coil pipe 8 of the anterior air intake position of evaporator 1, or on last row's coil pipe.
As shown in Figures 3 to 5, it is above-mentioned to simulate the sensor 2 with sensing frost thickness, including a shell 3, sensing
The process circuit 4 of device 2 is arranged on the inside of shell 3, and jack-plug socket 5 is set on shell 3, other for sensor 2 and outside
Electric elements are connected, and shell 3 uses the material of insulation and thermal insulation.
Two fixing holes 6 are provided with the shell 3 of sensor 2, when end plate 7 of the sensor 2 close to the end of evaporator 1 is consolidated
When being scheduled on first row coil pipe 8 or last row's coil pipe 8, with screw by the end plate 7 of the fixing hole 6 on sensor 2 and evaporator 1
It is fixed together.The fixation of sensor 2 is very convenient, and is not influenceed by the coil pipe 8 and fin 17 of evaporator 1.Pass
Sensor 2 can also be fixed on the end plate 7 of evaporator 1 by way of glue, can also be fixed on by the structure of buckle
On the end plate 7 of evaporator 1.
It is relatively set with two semicircular pedestals 9,10 on shell 3, the shape of pedestal 9 and pedestal 10 is not limited to half
The material of circle, pedestal 9 and pedestal 10 is the material of insulation and thermal insulation as shell 3.On the opposite face of two pedestals 9,10
A few cool guide sheet is individually secured to, cool guide sheet is fixedly connected on the coil pipe 8 with evaporator 1.
Cool guide sheet can set one on each pedestal 9,10, can also set two on a pedestal 9 or 10 wherein
Individual cool guide sheet, sets a cool guide sheet on another pedestal, and simulation is can serve as with the position of the edge junction of cool guide sheet
Frosting portion.But in order to ensure the accuracy of detection, as shown in figure 4, in the present embodiment, be preferably provided with four cool guide sheets 11,12,
13rd, 14, cool guide sheet 11 and cool guide sheet 12 are fixed on pedestal 9, and cool guide sheet 13 and cool guide sheet 14 are fixed on pedestal 10, cool guide sheet
Gap 15 is left between 11 and cool guide sheet 12, gap 16, gap 15 and the phase of gap 16 are left between cool guide sheet 13 and cool guide sheet 14
It is correspondingly arranged, gap 15 and gap 16 are simulation knot of the sensor 2 for simulating evaporator coil 8 and the frosting thickness of fin 17
In white portion, the present embodiment, simulation frosting portion is two be oppositely arranged.
Four cool guide sheets 11,12,13,14 are the sheet metal of heat conduction, and amount of localized heat is passed through into the He of evaporator fin 17 together
Coil pipe 8, which is delivered in refrigerant, to be taken away, and when flowing through the air with steam, steam condenses to the cold, cool guide sheet 11,12,13,
Frost is condensed on 14 and gap 15,16, the frosting thickness of evaporator coil 8 and fin 17 is simulated with this.
The position in correspondence simulation frosting portion on two pedestals 9,10, that is, the position for corresponding to gap 15 sets light transmitting terminal
18, opposite side, that is, the position for corresponding to gap 16 sets optical receiving end 19, light transmitting terminal 18 and optical receiving end 19 and process circuit
4 connections.
As shown in fig. 6, the diode of light transmitting terminal 18 sends a number of light wave, through the knot of simulation frosting portion position
Frost layer and air are transmitted to optical receiving end 19, by different frosting thickness, and the light wave quantity for reaching optical receiving end 19 is different, so that
Sensor 2 feeds back different output voltage values, in this, as according to the thickness for judging frost layer.Light transmitting terminal 18 and optical receiving end
Frosting and air are only existed between 19, is stopped without other, how many of light wave are influenceed by frost thickness, and then ensure the sensing
Device 2 can be with accurate detection frost thickness.
When refrigerator is operated, the frosting thickness for starting simulation frosting portion in evaporator 1 and sensor 2 is small, and optical receiving end 19 connects
The light wave of receipts is more, and the magnitude of voltage that sensor 2 is exported is high.Conversely, after refrigerator operates certain time, frost thickness increase, light connects
The light wave that receiving end 19 is received is few, and the magnitude of voltage that sensor 2 is exported is relatively low.Refrigerator control system is according to the output voltage of sensor 2
Size automatically adjusts defrost interlude, prevents evaporator 1 frostless and the progress defrost work of defrost heating tube, also can be serious
Defrost action is carried out during frosting in advance.Improve the defrosting control accuracy of storage space, it is to avoid invalid defrost, save useless power supply
Consumption.
In four cool guide sheets 11,12,13,14, cool guide sheet 11 and cool guide sheet 13 are relatively fixed in the relative of pedestal 9 and 10
Top on face, cool guide sheet 12 and cool guide sheet 14 are relatively fixed the bottom on the opposite face of pedestal 9 and 10 and extend pedestal 9
With 10 outside, its part extended out is buckle structure, on the two adjacent coil pipes 8 that can be connected on evaporator 1,
Fixed effect is not only played, while make to transmit heat between cool guide sheet 11,12,13,14 and evaporator fin 17 and coil pipe 8,
It is simple to operate.
As described above, the plan content with reference to given by accompanying drawing, can derive similar technical scheme.In every case it is not de-
From the content of technical solution of the present invention, any simple modification made according to technical spirit of the invention to above example, etc.
With change and modification, in the range of still falling within technical solution of the present invention.
Claims (8)
1. a kind of sensor of sensing frost thickness, it is characterised in that：Including shell, the process circuit being arranged in the shell
And to set and be relatively set with two pedestals on jack-plug socket on the housing, the shell, in the phase of two pedestals
Fixed respectively on opposite and gap is left between two cool guide sheets, two cool guide sheets of homonymy, the gap is simulation frosting
Portion, the position in the correspondence simulation frosting portion is oppositely arranged light transmitting terminal and optical receiving end, the light on two pedestals
Transmitting terminal and optical receiving end are connected with the process circuit.
2. the sensor of sensing frost thickness according to claim 1, it is characterised in that：The cool guide sheet extends described
On the outside of pedestal, its part extended out is that can be connected to the buckle structure on evaporator coil.
3. the sensor of sensing frost thickness according to claim 1, it is characterised in that：Be provided with the housing to
Few one fixing hole for fixing the sensor.
4. a kind of refrigerator with sensor as claimed in claim 1, it is characterised in that：Being provided with evaporator of refrigerator is used for
The sensor of sensing frost thickness, the sensor includes shell, the process circuit being arranged in the shell and is arranged on institute
State and two pedestals are relatively set with the jack-plug socket on shell, the shell, on the opposite face of two pedestals respectively
Fix and gap is left between two cool guide sheets, two cool guide sheets of homonymy, the gap is simulation frosting portion, in two institutes
The position for stating the simulation frosting portion of correspondence on pedestal is oppositely arranged light transmitting terminal and optical receiving end, and the smooth transmitting terminal and light connect
Receiving end is connected with the process circuit.
5. refrigerator according to claim 4, it is characterised in that：The sensor is arranged on the anterior air intake position of the evaporator
On the first row coil pipe put, or on last row's coil pipe.
6. refrigerator according to claim 4, it is characterised in that：The sensor is fixed on institute by the cool guide sheet
State on two coil pipes adjacent in evaporator.
7. refrigerator according to claim 4, it is characterised in that：The end plate of the shell of the sensor and the evaporator it
Between be fixedly connected by screw, or paste and fix, or buckle is fixedly connected.
8. a kind of method of work of refrigerator, it is characterised in that：One is installed on the evaporator of refrigerator as claimed in claim 1
Sensor, the frost thickness of the evaporator is simulated using the simulation frosting portion being connected with cool guide sheet, by passing through the simulation
The number of the light wave of frosting portion frost layer, judges the thickness of frost layer, and then according to the defrost of frost thickness automatic control and adjustment refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110330784.0A CN102435145B (en) | 2011-10-27 | 2011-10-27 | The sensor of sensing frost thickness, the refrigerator with the sensor and method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110330784.0A CN102435145B (en) | 2011-10-27 | 2011-10-27 | The sensor of sensing frost thickness, the refrigerator with the sensor and method of work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102435145A CN102435145A (en) | 2012-05-02 |
| CN102435145B true CN102435145B (en) | 2017-07-18 |
Family
ID=45983352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110330784.0A Active CN102435145B (en) | 2011-10-27 | 2011-10-27 | The sensor of sensing frost thickness, the refrigerator with the sensor and method of work |
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| CN (1) | CN102435145B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104764289B (en) * | 2014-08-11 | 2015-12-02 | 无锡美联动线智能科技有限公司 | Refrigerator body posterior medial accumulated ice detection alarm system |
| CN104567207B (en) * | 2014-12-31 | 2017-04-12 | 海信容声(广东)冰箱有限公司 | Defrosting sensor, refrigerator and defrosting method |
| US10172185B2 (en) * | 2015-01-05 | 2019-01-01 | Ford Global Technologies, Llc | Selective heating of vehicle side window |
| CN104596159A (en) * | 2015-01-26 | 2015-05-06 | 合肥美的电冰箱有限公司 | Evaporator assembly and refrigerator with same |
| CN105758064B (en) * | 2016-03-09 | 2018-06-19 | 北京工业大学 | A kind of self-cleaning thick sensor of photoelectricity frost |
| CN105972889A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Auto-induction hot water defrosting air cooler |
| CN105972891A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction hot-water anti-freezing defrosting device for air cooler |
| CN105972886A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction electric heating defrosting device for air cooler |
| CN105972887A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction hot water defrosting device for air cooler |
| CN105972888A (en) * | 2016-06-23 | 2016-09-28 | 刘滕军 | Automatic induction electric heating defrosting air cooler |
| CN106091502A (en) * | 2016-06-23 | 2016-11-09 | 刘滕军 | Automatically sensing hot water antifreeze defrost air-cooler |
| CN107388700B (en) * | 2017-01-20 | 2020-08-21 | 芯海科技（深圳）股份有限公司 | Refrigerator frost sensor |
| EP3617609A4 (en) * | 2017-04-28 | 2021-03-24 | Hitachi-Johnson Controls Air Conditioning, Inc. | Air conditioner |
| CN110553456A (en) * | 2019-08-14 | 2019-12-10 | 长虹美菱股份有限公司 | refrigerator defrosting control method |
| CN113819641B (en) * | 2021-09-18 | 2023-11-10 | 江苏麦赫物联网科技有限公司 | Frosting and defrosting sensor, mounting structure and detection control method |
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| US4232528A (en) * | 1978-03-16 | 1980-11-11 | Emerson Electric Co. | Frost detector |
| DE3539817A1 (en) * | 1985-11-09 | 1987-05-14 | Licentia Gmbh | Method for metrologically determining, displaying and/or evaluating the icing occurring on the cooling plates of an air cooler |
| CN1035716A (en) * | 1988-03-07 | 1989-09-20 | 焦晓青 | Defrostingsensor for refrigerating system |
| JPH0886557A (en) * | 1994-09-19 | 1996-04-02 | Ishizuka Denshi Kk | Frost detector |
| CN2733282Y (en) * | 2004-05-08 | 2005-10-12 | 苏州三星电子有限公司 | Frost melting determination apparatus |
| CN101988839B (en) * | 2009-08-04 | 2012-09-19 | 珠海格力电器股份有限公司 | Rime ice detection device, heat-pump air-conditioner and defrosting control method thereof |
| KR101704813B1 (en) * | 2010-02-23 | 2017-02-08 | 엘지전자 주식회사 | A refrigerator and control method the same |
| CN102141334B (en) * | 2011-04-22 | 2016-06-22 | 张明亮 | The automatic defrosting device of refrigeration equipment fin frosting detection device and application thereof |
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Effective date of registration: 20160623 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Qingdao hi tech park, Laoshan District, Shandong, Qingdao, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
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