CN207095132U - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- CN207095132U CN207095132U CN201720774364.4U CN201720774364U CN207095132U CN 207095132 U CN207095132 U CN 207095132U CN 201720774364 U CN201720774364 U CN 201720774364U CN 207095132 U CN207095132 U CN 207095132U
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- evaporator
- heater strip
- heat
- conducting plate
- heater
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Abstract
The utility model provides a kind of refrigerator.Refrigerator includes casing, refrigeration system and frosting situation detection means；Frosting situation detection means is arranged in cooling chamber, and including multiple differential pressure pick-ups；Length direction of multiple differential pressure pick-ups along evaporator is arranged at intervals；Pressure differential between two positions that the short transverse along evaporator that each differential pressure pick-up is configured to detection evaporator is set.Because having multiple differential pressure pick-ups in refrigerator of the present utility model.Because the frost layer adhered on evaporator is thicker, windage is bigger caused by frost layer, pressure difference between evaporator upper and lower ends or other any two height is bigger, therefore, multiple pressure differentials are obtained by detection, can judges that evaporator needs defrost according to wherein one or more pressure differentials, accurately and effectively to enter defrosting operation, so as to which the frost adhered on evaporator is melted in time, defrosting operation need not carried out during defrost by avoiding, so as to save electric energy.
Description
Technical field
Refrigerating storing field is the utility model is related to, more particularly to a kind of refrigerator.
Background technology
Refrigerator is to maintain a kind of refrigeration plant of constant low temperature, and one kind makes food or other articles keep constant low temperature
The product for civilian use of cold conditions.Air-cooled technology is by built-in hiding cooler (such as evaporator of coolant circulating system) to flowing through it
Air freezed, force circulating cold air to flow by fan, so that cold air is uniformly distributed in each compartment of refrigerator, realize
Refrigeration.When air passes through evaporator surface in refrigerator, the moisture in air can condense in evaporator surface, due to evaporator temperature
Spend low, frost layer is formed after a period of time, causes evaporator heat transfer efficiency to decrease up to evaporator and is completely plugged and fails, drop
Low refrigerator operational efficiency, it is necessary to carry out defrost after a period of time is run.Existing defrosting control is mainly tired out by press
Run time is counted to control refrigerator to start defrost, to ensure the normal work of refrigerator, in refrigerator or the accumulative operation one of its compressor
When regularly long, no matter the truth of evaporimeter frosting, defrosting operation is carried out.In the case that if frosting degree is small on an evaporator
Carry out defrosting operation, it may appear that need not defrost also defrost situation, cause to waste electric energy.Therefore, how to avoid must not
Want to enter defrosting operation during defrost, turn into technical problem urgently to be resolved hurrily so as to save refrigerator electric energy.
Utility model content
Inventor thinks that the mode of present refrigerator inside defrost is essentially all to carry out defrost based on experience value, but refrigerator
According to the change of normal service condition and environment, internal frosting velocity is different, and, because for evaporator in itself
Relation of wind direction etc., evaporator diverse location frosting velocity is also different, if defrost is not in time, may influence refrigeration
Efficiency, poor refrigerating efficiency is caused, extend the available machine time, cause power consumption to increase, if defrost is excessively frequent, on evaporator
Frost is very few, can cause internal temperature of refrigerator fluctuation increase, can all have an impact to fresh-keeping and power consumption.
Therefore, a purpose of the present utility model aims to provide a kind of novel refrigerator, and it can timely and accurately be detected
To the frosting situation of evaporator, defrost can be timely entered, and defrost also will not be excessively frequent.
One of the present utility model further objective is that make evaporator defrost on demand, is changed evaporator diverse location on demand
Frost is extremely important, so can both reduce power consumption, can also strengthen fresh-keeping effect.
Especially, the utility model provides a kind of refrigerator, and it includes：
Casing, there is storing compartment, cooling chamber in the casing, and connect the storing compartment and the cooling chamber
Ducting system；
Refrigeration system, is installed on the casing, and the refrigeration system has evaporator；The evaporator is installed on described cold
It is indoor, it is configured with entering the gas temperature in the refrigerant reduction cooling chamber in it, with via the ducting system
The temperature for making the storing indoor is maintained at preset temperature or in preset temperature range；With
Frosting situation detection means, the frosting situation detection means are arranged in the cooling chamber, and including multiple differences
Pressure sensor；Length direction of multiple differential pressure pick-ups along the evaporator is arranged at intervals；Each differential pressure pick-up
It is configured to detect the pressure differential between two positions that the short transverse along the evaporator of the evaporator is set.
Alternatively, the quantity of the differential pressure pick-up is two, be respectively arranged at the evaporator along the evaporator
The both ends that set of length direction at, and a differential pressure pick-up is configured to detect bottom end and the upper end of the evaporator
Between pressure differential；Another differential pressure pick-up be configured to detect the evaporator center and upper end between pressure
Power is poor.
Alternatively, refrigerator also includes defrosting heater, and the defrosting heater has heat-conducting plate and multiple heater strips；
The heat-conducting plate is arranged at the side of the evaporator, and is thermally contacted with the evaporator；Each heater strip edge level side
To extension, and short transverse of multiple heater strips along the evaporator is arranged at intervals, and each heater strip is led with described
Hot plate and/or evaporator thermo-contact.
Alternatively, the heat-conducting plate is arranged between multiple heater strips and the evaporator, each described will be added
Heat transfer caused by heated filament is to the evaporator；Or
Multiple heater strips are arranged in the heat-conducting plate.
Alternatively, the evaporator is finned tube evaporator；
The heat-conducting plate is installed on the evaporator by multiple buckle structures, and the part buckle structure is arranged at described
The top of heat-conducting plate and the evaporator, buckle described in remainder are arranged at the bottom of the heat-conducting plate and the evaporator；
And
The heat-conducting plate is aluminium sheet.
Alternatively, the heater strip be two, including the first heater strip and on the upside of first heater strip second
Heater strip；Distance of first heater strip apart from the heat-conducting plate bottom is equal to second heater strip apart from the heat-conducting plate
The distance of upper end, and it is less than the distance between first heater strip and second heater strip.
Alternatively, distance of first heater strip apart from the heat-conducting plate bottom is to state the first heater strip and described second
The 1/2 to 4/5 of the distance between heater strip.
Alternatively, the power of each heater strip is equal；Or
The power of each heater strip；Or
In the adjacent heater strip of each two, the power of the heater strip in upside is less than in described in downside
The power of heater strip.
Because having multiple differential pressure pick-ups in refrigerator of the present utility model.Because the frost layer adhered on evaporator is thicker,
Windage is bigger caused by frost layer, and the pressure difference between evaporator upper and lower ends or other any two height is bigger, because
This, by each differential pressure pick-up detect two positions that the short transverse along the evaporator of the evaporator sets it
Between pressure differential, can obtain multiple pressure differentials, can judge that evaporator needs defrost according to wherein one or more pressure differentials, with standard
Defrosting operation really is effectively entered, so as to which the frost adhered on evaporator is melted in time, is avoided need not defrost
Shi Jinhang defrosting operations, so as to save electric energy.
Further, can be in multiple positions due to also having heat-conducting plate and multiple heater strips in refrigerator of the present utility model
Place is heated to evaporator, and the heat of multiple heater strips can be made full use of by heat-conducting plate, can fast and effeciently be removed
The frost condensed on evaporator.Moreover, it can suitably increase the heat time of corresponding heater strip for the thicker place of frost layer
Or heating power, evaporator defrost on demand can be made, it is extremely important to change the frost of evaporator diverse location on demand, so can both be subtracted
Few power consumption, can also strengthen fresh-keeping effect.
According to the accompanying drawings will be more to the detailed description of the utility model specific embodiment, those skilled in the art
Add clear of the present utility model above-mentioned and other purposes, advantages and features.
Brief description of the drawings
It is described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter more of the present utility model specific real
Apply example.Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that
What these accompanying drawings were not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the schematic diagram according to the refrigerator of the utility model one embodiment；
Fig. 2 is the schematic local structural graph according to the refrigerator of the utility model one embodiment；
Fig. 3 is the schematic side elevation of structure shown in Fig. 2.
Embodiment
Fig. 1 is the schematic diagram according to the refrigerator of the utility model one embodiment；Fig. 2 is according to the utility model
The schematic local structural graph of the refrigerator of one embodiment；Fig. 3 is the schematic side elevation of structure shown in Fig. 2.As shown in Figure 1, Figure 2 and
Shown in Fig. 3, the utility model embodiment provides a kind of refrigerator.The refrigerator may include casing 10, door body, refrigeration system and frosting
Situation detection means.
There are multiple storing compartments in casing 10.Storing compartment is used to store food.Multiple storages in the embodiment of the present invention
Thing compartment may include the refrigerating chamber 11 of often storage vegetables, and its temperature-control range is typically at -5 DEG C to 7 DEG C.Multiple storing compartments may be used also
Including refrigerating chamber 12, temperature-changing chamber etc..Door body can be multiple, and each door body is configured to controllably to open or close between a storing
Room.Further, casing 10 also has compressor bin, cooling chamber, and the ducting system of connection storing compartment and cooling chamber.It is cold
But room can be at the rear side of refrigerating chamber 12.In Fig. 1, the air duct cover board between cooling chamber and refrigerating chamber 12 is not shown.
Refrigerant system configuration is into providing cold to reduce the indoor temperature of storing.Specifically, refrigeration system can be compression
Formula refrigeration system, it includes compressor, condenser, throttling arrangement and evaporator 20 etc..Compressor may be disposed in compressor bin.
Evaporator 20 may be disposed in cooling chamber, be configured with entering the gas temperature in the refrigerant reduction cooling chamber in it, with warp
The temperature for making storing indoor by ducting system is maintained in preset temperature or preset temperature range.
Frosting situation detection means may be disposed in cooling chamber, and including multiple differential pressure pick-ups 60.Multiple differential pressure sensings
Length direction of the device 60 along evaporator 20 is arranged at intervals；Each differential pressure pick-up 60 be configured to detect evaporator 20 along evaporator
Pressure differential between two positions that 20 short transverse is set.Any two differential pressure pick-up 60 detect along evaporator 20
Short transverse set two positions identical can also differ, preferably differ.For example, one of differential pressure sensing
Device 60 be configured to detect evaporator 20 bottom end and upper end between pressure differential；Another differential pressure pick-up 60 is configured to detect
Pressure differential between the center of evaporator 20 and upper end.Preferably, the frosting situation detection means especially suitable for
The refrigerator of longer and/or higher evaporator 20, detection structure can be made more accurate, accurately and effectively to enter defrosting operation,
So as to which the frost adhered on evaporator is melted in time, defrosting operation need not carried out during defrost by avoiding, so as to save
Save electric energy.
In some preferred embodiments of the present utility model, the quantity of differential pressure pick-up 60 is two, is respectively arranged at
At the both ends that the length direction along evaporator 20 of evaporator 20 is set.And a differential pressure pick-up 60 is configured to detection evaporation
Pressure differential between the bottom end of device 20 and upper end；Another differential pressure pick-up 60 be configured to detect evaporator 20 center and
Pressure differential between upper end.
In some embodiments of the utility model, refrigerator, which may also include, holds white heater.Defrosting heater can have
There are heat-conducting plate 30 and multiple heater strips 40.Heat-conducting plate 30 is arranged at the side of evaporator 20, and thermally contacts (to enter with evaporator 20
Row contact is thermally coupled)；Each heater strip 40 is horizontally extending, and short transverse of the multiple heater strips 40 along evaporator 20
It is arranged at intervals, each heater strip 40 thermally contacts with heat-conducting plate 30 and/or evaporator 20.Multiple heater strips 40 can be multiple different high
Degree opening position heats to evaporator 20.Heat-conducting plate 30 can be used for making heat be diffused at heater strip 40 on evaporator 20,
Improve defrosting efficiency.
In some preferred embodiments of the present utility model, heat-conducting plate 30 is arranged at multiple heater strips 40 and evaporator 20
Between, by heat transfer caused by each heater strip 40 to evaporator 20.In other preferred embodiments, multiple heater strips
40 are arranged in heat-conducting plate 30.Specifically, multiple mounting grooves or mounting hole are provided with heat-conducting plate 30, each heater strip 40 is set
In in a mounting groove or mounting hole.Further, evaporator 20 is finned tube evaporator 20.Heat-conducting plate 30 passes through multiple cards
Buckle structure 50 is installed on evaporator 20, and part buckle structure 50 is arranged at the top of heat-conducting plate 30 and evaporator 20, remainder
Buckle is arranged at the bottom of heat-conducting plate 30 and evaporator 20.Heat-conducting plate 30 is aluminium sheet, and is arranged at the rear side of evaporator 20.
In some embodiments of the utility model, the length of heat-conducting plate 30 is less than the length of evaporator 20, heat-conducting plate 30
Height be less than the height of evaporator 20, and heat-conducting plate 30 is arranged at the middle part of the side of evaporator 20.The area of heat-conducting plate 30
It can be the 60% to 90% of the lateralarea of evaporator 30.
Heater strip 40 can be two, including the first heater strip and the second heater strip on the upside of the first heater strip；First
Distance of the heater strip apart from the bottom of heat-conducting plate 30 is equal to distance of second heater strip apart from the upper end of heat-conducting plate 30, and adds less than first
The distance between heated filament and the second heater strip.First heater strip is apart from the distance of the bottom of heat-conducting plate 30 to state the first heater strip and the
The 1/2 to 4/5 of the distance between two heater strips.According to the dimensional structure of refrigerator inside, each heater strip 40 can be square, be circular
It is or flat-shaped.In some alternate embodiments of the present utility model, the quantity of heater strip 40 is at least three, is added per two neighboring
The distance between heated filament 40 is equal.
In some embodiments of the utility model, the power of each heater strip 40 is equal.More of the present utility model
In embodiment, the power of each heater strip 40 can not also wait, and can be completed by adjusting the resistance of heater strip 40 either voltage.Example
Such as, in the adjacent heater strip 40 of each two, the power of the heater strip 40 in upside is less than the heater strip 40 in downside
Power.That is, the power of each heater strip 40 is incremented by successively from top to bottom.The evaporator of the embodiment may also include control
Device, it is configured to individually control each heater strip 40, so as to each work independently.That is, each heater strip 40 can be independent
Opened and stopped by control in ground.
In some embodiments of the utility model, refrigerator also includes defrosting sensor, be arranged at evaporator top and
On roof in cooling chamber, for detecting the temperature in cooling chamber, so that the temperature that refrigerator detects according to defrosting sensor
And/or the pressure value that detects of differential pressure pick-up 60 judges the defrost situation of evaporator 20.For example, work as any one differential pressure pick-up
60 when detecting that value is more than corresponding preset value, can determine whether that evaporator 20 needs defrost, refrigerator can start defrost.Further, may be used
Make the power of each heater strip 40 identical, each heater strip 40 can be controlled individually.According to the rule of the frosting of evaporator 20, one
As the bottom frosting velocity of evaporator 20 be faster than the upper end of evaporator 20, it is possible to shorten the defrost time of top heater strip 40, it is real
Now defrost on demand.Specifically, when defrost, all heater strips 40 can be opened heating simultaneously, when defrosting sensor detects
Temperature reach design temperature (such as 4 DEG C) left and right, the heater strip 40 on top stops heating, and the heater strip 40 of bottom continues to heat,
After the temperature of defrosting sensor detection reaches design temperature (such as 7 DEG C), all heater strips 40 stop heating.This heating side
Formula can effectively reduce the defrost time, and during defrost, power consumption needed for whole defrost is reduced, and can effectively be subtracted
Mini-bar internal temperature fluctuates.
In other embodiments of the present utility model, the power of each heater strip 40 can be made different, from top to bottom, each
The power of heater strip 40 is incremented by successively.Each heater strip 40 can be controlled individually.Specifically, below the frosting velocity of evaporator 20
It is most fast, successively decrease successively from top to bottom.The bottom maximum temperature of heater strip 40 can be 100 DEG C, from bottom to up second heater strip 40
Maximum temperature is 85 DEG C, and the 3rd maximum temperature of heater strip 40 is 75 DEG C from bottom to up, the maximum temperature of the 4th heater strip 40
It can be 70 DEG C, more root heater strips 40 are needed if longer evaporator 20, its maximum temperature can be 70 DEG C.In this section
Temperature is relatively good, too high, and refrigerator inside working of plastics can be caused to change colour, can seriously cause to deform, temperature is too low, can cause defrost
Efficiency is low.When refrigerator starts defrost, control all heater strips 40 while heat, set when the temperature of defrosting sensor detection reaches
After constant temperature degree, control heater strip 40 simultaneously closes off.
So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model more
Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the spirit and scope of the utility model
The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new
The scope of type is understood that and regarded as to cover other all these variations or modifications.
Claims (8)
- A kind of 1. refrigerator, it is characterised in that including：Casing, the casing is interior to have storing compartment, cooling chamber, and connects the air channel of the storing compartment and the cooling chamber System；Refrigeration system, is installed on the casing, and the refrigeration system has evaporator；The evaporator is installed on the cooling chamber It is interior, it is configured with entering the gas temperature in the refrigerant reduction cooling chamber in it, to make institute via the ducting system The indoor temperature of storing is stated to be maintained at preset temperature or in preset temperature range；WithFrosting situation detection means, the frosting situation detection means are arranged in the cooling chamber, and are passed including multiple differential pressures Sensor；Length direction of multiple differential pressure pick-ups along the evaporator is arranged at intervals；Each differential pressure pick-up configuration Pressure differential between two positions set into the short transverse along the evaporator for detecting the evaporator.
- 2. refrigerator according to claim 1, it is characterised in thatThe quantity of the differential pressure pick-up is two, and the length direction along the evaporator for being respectively arranged at the evaporator is set At the both ends put, and a differential pressure pick-up be configured to detect the evaporator bottom end and upper end between pressure Difference；Another differential pressure pick-up be configured to detect the evaporator center and upper end between pressure differential.
- 3. refrigerator according to claim 1, it is characterised in that also include：Defrosting heater, the defrosting heater have heat-conducting plate and multiple heater strips；The heat-conducting plate is arranged at described The side of evaporator, and thermally contacted with the evaporator；Each heater strip is horizontally extending, and multiple heating Short transverse of the silk along the evaporator is arranged at intervals, each heater strip and the heat-conducting plate and/or evaporator heat Contact.
- 4. refrigerator according to claim 3, it is characterised in thatThe heat-conducting plate is arranged between multiple heater strips and the evaporator, will heat caused by each heater strip Amount is transferred to the evaporator；OrMultiple heater strips are arranged in the heat-conducting plate.
- 5. refrigerator according to claim 4, it is characterised in thatThe evaporator is finned tube evaporator；The heat-conducting plate is installed on the evaporator by multiple buckle structures, and the part buckle structure is arranged at the heat conduction The top of plate and the evaporator, buckle described in remainder are arranged at the bottom of the heat-conducting plate and the evaporator；AndThe heat-conducting plate is aluminium sheet.
- 6. refrigerator according to claim 4, it is characterised in thatThe heater strip is two, including the first heater strip and the second heater strip on the upside of first heater strip；It is described Distance of first heater strip apart from the heat-conducting plate bottom is equal to distance of second heater strip apart from the heat-conducting plate upper end, And it is less than the distance between first heater strip and second heater strip.
- 7. refrigerator according to claim 6, it is characterised in thatDistance of first heater strip apart from the heat-conducting plate bottom is to state between the first heater strip and second heater strip Distance 1/2 to 4/5.
- 8. refrigerator according to claim 3, it is characterised in thatThe power of each heater strip is equal；OrThe power of each heater strip；OrIn the adjacent heater strip of each two, the power of the heater strip in upside is less than the heating in downside The power of silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774364.4U CN207095132U (en) | 2017-06-29 | 2017-06-29 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774364.4U CN207095132U (en) | 2017-06-29 | 2017-06-29 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207095132U true CN207095132U (en) | 2018-03-13 |
Family
ID=61554504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720774364.4U Active CN207095132U (en) | 2017-06-29 | 2017-06-29 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207095132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115265073A (en) * | 2022-08-26 | 2022-11-01 | 珠海格力电器股份有限公司 | Defrosting structure, refrigerator and defrosting control method of refrigerator |
-
2017
- 2017-06-29 CN CN201720774364.4U patent/CN207095132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115265073A (en) * | 2022-08-26 | 2022-11-01 | 珠海格力电器股份有限公司 | Defrosting structure, refrigerator and defrosting control method of refrigerator |
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