CN208859986U - A kind of evaporator thawing apparatus - Google Patents
A kind of evaporator thawing apparatus Download PDFInfo
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- CN208859986U CN208859986U CN201821643244.1U CN201821643244U CN208859986U CN 208859986 U CN208859986 U CN 208859986U CN 201821643244 U CN201821643244 U CN 201821643244U CN 208859986 U CN208859986 U CN 208859986U
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- thick film
- film heater
- evaporator
- heating element
- radiating fin
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Abstract
The utility model embodiment discloses a kind of evaporator thawing apparatus, connect including power supply, the heating element connected to power supply and with heating element processor for controlling heating element operating time, wherein heating element is thick film heater；Since thick film heater has good thermal transition efficiency, compared with electrothermal tube or this kind of heating element of heating wire, thick film heater can reach sameization ice effect under lower surface temperature, therefore, thick film heater can be arranged on the radiating fin of evaporator, for carrying out heatingization ice to the radiating fin.Since thick film heater is directly contacted with radiating fin, allowing the heat generated to be transmitted to icing position to greatest extent realizes conduction heat exchange, it is greatly improved evaporator ice efficiency, and can achieve goodization ice effect by way of conduction heat exchange, the occurrence of effectively reducing ice is incomplete.
Description
Technical field
The utility model relates to evaporator ice technical fields, more particularly to a kind of evaporator thawing apparatus.
Background technique
Evaporator is the main heat-exchanger rig of refrigeration system, is changed by refrigerant with the extraneous medium for flowing through its parts surface
The equipment of heat.In work, the refrigerant in evaporator becomes gaseous state from liquid, achievees the effect that refrigeration.
Evaporator includes radiating fin and refrigerant pipe, by taking refrigerator as an example, the radiating fin of evaporator in refrigerator work
On can condense frost, with the increase of tied frost thickness, the increasing of reduction, the energy consumption of evaporator heat transfer efficiency can be directly resulted in
Add.In order to reduce influence caused by condenser hot well on evaporator, in the prior art, frequently with heating units such as electrothermal tube or heating wire
Part is to the processing of evaporator progress ice.
In practical applications, the operating temperature of the heating elements such as electrothermal tube or heating wire is higher, its surface temperature is needed to reach
To after certain temperature value, thermal transition efficiency could satisfaction ice requirement.Under normal circumstances, it is needed to reach 200 degrees Celsius
Left and right just being able to satisfy ice requirement is easy to cause refrigerator inside that shell gallbladder occurs and splits since the surface temperature of heating element is excessively high,
Even cause the combustion explosion of refrigerant pipe and cause danger, therefore the heating elements such as electrothermal tube or heating wire can only be mounted on far
End, cannot be directly installed on radiating fin.It is as illustrated in figs. 1A and ib the installation site signal of heating tube in the prior art
Figure, wherein Fig. 1 a is main view, and Fig. 1 b is side view, includes radiating fin 11, refrigerant pipe 12 and fixed in evaporator of refrigerator
Bracket 13, heating tube 14 are arranged in the lower section of radiating fin 11, lead 15 are provided in heating tube 14, can connect to power supply,
For the power supply of heating tube 14.
Due to the limitation of heating element working characteristics, the bottom of evaporator can only be arranged in heating element, dissipated by radiating
The mode of heat is to the processing of radiating fin progress ice.Due to heating element at a distance from radiating fin farther out, causing ice efficiency
It is lower, and the often incomplete situation of will appear ice.
It is those skilled in the art's urgent problem to be solved as it can be seen that how to promote evaporator ice efficiency.
Utility model content
The purpose of the utility model embodiment is to provide a kind of evaporator thawing apparatus, can promote evaporator ice effect
Rate.
In order to solve the above technical problems, the utility model embodiment provides a kind of evaporator thawing apparatus, including power supply,
It the heating element that is connect with the power supply and connect with the heating element for controlling the heating element operating time
Processor, the heating element are thick film heater；
The thick film heater is set on the evaporator, for heating to the radiating fin on the evaporator
Change ice.
Optionally, the number of the thick film heater is multiple.
Optionally, multiple thick film heaters are arranged according to preset interval on the radiating fin.
Optionally, the thick film heater fits in the outer surface of the radiating fin.
Optionally, the thick film heater is embedded in the gap between each refrigerant pipe of the evaporator.
Optionally, the outer shape of the thick film heater and the outer shape of the radiating fin match.
It optionally, further include temperature element；
The temperature element is connect with the thick film heater and the processor respectively, for acquiring thick film heater
Temperature value, and the temperature value is transmitted to the processor, in order to which the processor controls institute according to the temperature value
State the working condition of thick film heater.
Optionally, the temperature element is temperature sensor.
Optionally, slurry is set on the outer surface of the thick film heater, to increase the thick film heater outer surface
Smoothness.
Optionally, the thick film heater is metal thick film heater, ceramic thick film heater or organic matter thick-film heating
Device.
It can be seen from above-mentioned technical proposal evaporator thawing apparatus include power supply, the heating element that connects to power supply with
And the processor for controlling heating element operating time is connect with heating element, wherein heating element is thick film heater；By
There is good thermal transition efficiency, compared with electrothermal tube or this kind of heating element of heating wire, thick film heater in thick film heater
Sameization ice effect can be reached under lower surface temperature, therefore, evaporator can be arranged in thick film heater
On radiating fin, for carrying out heatingization ice to the radiating fin.Since thick film heater is directly contacted with radiating fin, so that
The heat of generation can be transmitted to icing position to greatest extent realizes conduction heat exchange, is greatly improved evaporator ice effect
Rate, and can achieve goodization ice effect by way of conduction heat exchange, effectively reducing ice incomplete situation
Occur.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment, letter will be done to attached drawing needed in the embodiment below
Single introduction, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 a is a kind of main view of the installation site for heating element that the prior art provides；
Fig. 1 b is a kind of side view of the installation site for heating element that the prior art provides；
Fig. 2 is a kind of structural schematic diagram of evaporator thawing apparatus provided by the embodiment of the utility model；
Fig. 3 be it is provided by the embodiment of the utility model it is a kind of by thick film heater be embedded in evaporator each refrigerant pipe it
Between gap in side view；
Fig. 4 is that a kind of multiple thick film heaters provided by the embodiment of the utility model are evenly arranged in the knot on radiating fin
Structure schematic diagram；
Fig. 5 is a kind of multiple thick film heater uneven arrangements provided by the embodiment of the utility model on radiating fin
Structural schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than all real
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art without making creative work, institute
The every other embodiment obtained, belongs to scope of protection of the utility model.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.
Next, a kind of evaporator thawing apparatus provided by the utility model embodiment is discussed in detail.Fig. 2 is that this is practical
The structural schematic diagram for a kind of evaporator thawing apparatus that new embodiment provides, including power supply, the heating element connected to power supply
And the processor for controlling heating element operating time is connect with heating element, heating element is thick film heater 10；It is thick
Film heater 10 is set on evaporator, for carrying out heatingization ice to the radiating fin 11 on evaporator.
Compared with electrothermal tube or this kind of heating element of heating wire, thick film heater 10 can be assigned in lower surface temperature
To sameization ice effect, therefore, in the utility model embodiment, thick film heater 10 can be close to dissipating for evaporator
Hot fin 11, for carrying out heatingization ice to the radiating fin 11.
In the utility model embodiment, for thick film heater 10 on an evaporator on specific set-up mode do not limit
It is fixed, thick film heater 10 can be fitted in the outer surface of radiating fin 11, the main view of structural schematic diagram may refer to figure
2；Thick film heater 10 can also be embedded in the gap between each refrigerant pipe of evaporator, the side view of structural schematic diagram
Figure is as shown in Figure 3.
Thick film heater 10 can be connected to power supply by lead, and in order to which power supply is powered to it, Fig. 2 and Fig. 3 are mainly
In order to show therefore position of the thick film heater 10 in evaporator does not show power supply in figure 2 and figure 3.
The area that thick film heater 10 is contacted with radiating fin 11 is bigger, and the heat that thick film heater 10 generates then can be more
Good is transmitted to radiating fin 11, therefore, when make thick film heater 10 can by the outer shape of thick film heater 10 and
The outer shape of radiating fin 11 matches, it can makes thick film heater 10 according to the shape of radiating fin 11.
For example, when radiating fin 11 be it is plate, then thick film heater 10 can be arranged to plate thick film heater；
When radiating fin 11 be curved face type, then thick film heater 10 can be arranged to curved face type thick film heater.
In order to not influence the proper flow of air-flow in air duct, and guarantee the fitting heat dissipation to the greatest extent of thick film heater 10
Fin 11, it is restricted for the size club of single thick film heater 10.Since the size of single thick film heater 10 is limited, from
And it is limited to will lead to heating surface area on radiating fin 11, influence ice effect.Therefore, in order to realize goodization ice effect,
In the utility model embodiment, it can set multiple for the number of thick film heater 10.
In the concrete realization, multiple thick film heaters 10 can be arranged according to preset interval in radiating fin 11
On.
Preset interval can be fixed spacing value, it is assumed that the number of thick film heater is 4, then can be by this 4 thickness
Film heater is successively spaced fixed range and is evenly arranged on radiating fin 11, and corresponding structural schematic diagram may refer to Fig. 4.
Preset interval, which is also possible to be directed to different positions, is arranged different spacing values, it is contemplated that in radiating fin 11
Between freeze at position and more concentrate, then can set smaller for the corresponding spacing value in 11 middle position of radiating fin, both ends
The corresponding spacing value in position is larger, then can be in the middle position of radiating fin 11 in this way when placing thick film heater 10
Setting it is more intensive, 11 both ends of radiating fin position set it is more sparse, corresponding structural schematic diagram may refer to
Fig. 5.
In the utility model embodiment, heatingization ice is carried out to radiating fin 11 using thick film heater 10, thick film adds
Hot 10 operating time of device can be controlled by processor.
In the concrete realization, corresponding time threshold can be preset in the processor, since thick film heater 10
Start timing when work, when thick film heater 10 reaches the time threshold, then illustrates 10 having been realized in of thick film heater
Ice work, stops working, specific processor can cut off the power to thick film at this point, processor can control thick film heater 10
The power supply of heater 10.
Wherein, the operating experience that the specific value of the time threshold can be dependent on user is set, can also foundation
It is set in factors such as the component parameters such as power, the thermal efficiency of thick film heater 10, or is added by testing thick film in advance
The change ice time of hot device 10 counts the ice cube by solid-state for example, heating using ice cube of the thick film heater to designated volume
It the working time of thick film heater when being converted into liquid, can be using the working time as time threshold.
About the production of thick film heater 10, silk screen can be passed through using electric slurry on substrate in the concrete realization
Printing makes the thick films heater circuit functional layer such as insulating layer, heating layer, conductor layer, protective layer with layering sintering process respectively, from
And produce thick film heater 10.
Wherein, heating layer can be with positive temperature coefficient (Positive Temperature Coefficient, PTC)
Elastomeric material, temperature-coefficient of electrical resistance (temperature coefficient of resistance, TCR) exists
1000ppm/ DEG C or more, it is synchronous with temperature sensing that fever may be implemented.
In the concrete realization, heating layer can be designed to multizone, multistage figure, to realize segmentation multizone or part
Temperature control.
Substrate about thick film heater 10 can use metal base, to produce metal thick film heater；Or
It is to use ceramic base material, to produce ceramic thick film heater；Organic matter substrate is either used, for example, PET plastic, PI
Compound etc., to produce organic matter thick film heater.
It can be seen from above-mentioned technical proposal evaporator thawing apparatus include power supply, the heating element that connects to power supply with
And the processor for controlling heating element operating time is connect with heating element, wherein heating element is thick film heater；By
There is good thermal transition efficiency, compared with electrothermal tube or this kind of heating element of heating wire, thick film heater in thick film heater
Sameization ice effect can be reached under lower surface temperature, therefore, evaporator can be arranged in thick film heater
On radiating fin, for carrying out heatingization ice to the radiating fin.Since thick film heater is directly contacted with radiating fin, so that
The heat of generation can be transmitted to icing position to greatest extent realizes conduction heat exchange, is greatly improved evaporator ice effect
Rate, and can achieve goodization ice effect by way of conduction heat exchange, effectively reducing ice incomplete situation
Occur.
In view of being influenced by factors such as external environments either itself working efficiency of thick film heater 10, thick film heater
10 working times operated every time to 11 executionization ice of radiating fin, which often had, to be had a certain difference.In order to be more accurate
Thick film heater 10 is controlled to the operating time of change ice time, that is, thick film heater 10 of radiating fin 11, in the utility model reality
It applies in example, the temperature of thick film heater 10 can be measured, monitor the temperature rising state of thick film heater 10 in real time.
Specifically, temperature element can be set；Temperature element is connect with thick film heater 10 and processor respectively, is used for
The temperature value of thick film heater 10 is acquired, and temperature value is transmitted to processor, in order to which processor is thick according to temperature value control
The working condition of film heater.
After the surface temperature of thick film heater 10 reaches certain temperature value, thermal transition efficiency want by satisfaction ice
It asks, appended ice sheet can be by fast melt on radiating fin.After ice sheet appended on radiating fin is all melted, if continuing
It powers to thick film heater 10, the surface temperature of thick film heater 10 can increase at this time.
In the concrete realization, temperature upper limit can be stored in advance in the processor, when the temperature value of thick film heater 10
When reaching the temperature upper limit, then illustrate that ice sheet appended on the radiating fin of evaporator has melted, thick film heater 10 is
Through completing ice process, processor can cut off the power the connection with thick film heater 10 at this time, i.e., control power supply stop to
Thick film heater 10 is powered.
Wherein, temperature element can use temperature sensor.
In view of the limitation of evaporator inner space, in practical applications, patch type temperature sensor can be used, in thickness
The surface mount patch type temperature sensor of film heater 10, not only can achieve the purpose of thermometric, but also can reduce temperature sensing
The occupied space of device.
There is metastable rule between thick film heater operating temperature and entire thermal field, it, can by the way that temperature element is arranged
To realize to the real time monitoring of thick film heater temperature, it is capable of the actual conditions of intuitive embodying ice process, to guarantee
The accurate execution for changing ice process avoids the extension of thick film heater temperature deficiency causing ice time or thick film heater
Temperature is excessively high to cause evaporator failure.
In view of thick film heater 10 has TCR characteristic, the i.e. resistance value of thick film heater 10 and the proportional pass of temperature value
System, in the utility model embodiment, except through temperature value of the temperature element to obtain thick film heater 10 outside, can also lead to
The resistance value of measurement thick film heater 10 is crossed, and according to TCR characteristic, determines the temperature value of thick film heater 10, thus when thickness
When the temperature value of film heater 10 reaches temperature upper limit, stop powering to thick film heater 10 from processor control power supply, with
Achieve the purpose that control 10 operating time of thick film heater.
In view of that may remain dirt on the surface of thick film heater 10, influence thick film heater in practical application
Therefore in the utility model embodiment, slurry can be arranged in 10 thermal transition efficiency on the outer surface of thick film heater 10
Material, to increase the smoothness of 10 outer surface of thick film heater.
In the concrete realization, covering slurry even application can be added in thick film using techniques such as spraying, brushing or dip-coatings
Each face of hot device can effectively subtract in use since covering slurry has the surface of smooth densification after high temperature sintering
Few residual of the dirt on thick film heater.
A kind of evaporator thawing apparatus provided by the utility model is described in detail above.It is each in specification
Embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, each
Same and similar part may refer to each other between embodiment.For the device disclosed in the embodiment, due to itself and embodiment public affairs
The method opened is corresponding, so being described relatively simple, reference may be made to the description of the method.It should be pointed out that for
It, without departing from the principle of this utility model, can also be practical new to this for those skilled in the art
Some improvement and modification can also be carried out for type, and modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (10)
1. a kind of evaporator thawing apparatus, including power supply, the heating element being connect with the power supply and with the heating element
Connect the processor for controlling the heating element operating time, which is characterized in that the heating element is thick film heater；
The thick film heater is set on the evaporator, for carrying out heating to the radiating fin on the evaporator
Ice.
2. evaporator thawing apparatus according to claim 1, which is characterized in that the number of the thick film heater is more
It is a.
3. evaporator thawing apparatus according to claim 2, which is characterized in that multiple thick film heaters are according to default
It is alternatively arranged and is set on the radiating fin.
4. evaporator thawing apparatus according to claim 1, which is characterized in that the thick film heater fits in described dissipate
The outer surface of hot fin.
5. evaporator thawing apparatus according to claim 1, which is characterized in that the thick film heater is embedded in the steaming
It sends out in the gap between each refrigerant pipe of device.
6. evaporator thawing apparatus according to claim 1, which is characterized in that the outer shape of the thick film heater with
The outer shape of the radiating fin matches.
7. evaporator thawing apparatus described in -6 any one according to claim 1, which is characterized in that further include temperature element；
The temperature element is connect with the thick film heater and the processor respectively, for acquiring the temperature of thick film heater
Angle value, and the temperature value is transmitted to the processor, in order to which the processor controls the thickness according to the temperature value
The working condition of film heater.
8. evaporator thawing apparatus according to claim 7, which is characterized in that the temperature element is temperature sensor.
9. evaporator thawing apparatus according to claim 1, which is characterized in that on the outer surface of the thick film heater
Slurry is set, to increase the smoothness of the thick film heater outer surface.
10. evaporator thawing apparatus according to claim 1, which is characterized in that the thick film heater is metal thick film
Heater, ceramic thick film heater or organic matter thick film heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821643244.1U CN208859986U (en) | 2018-10-10 | 2018-10-10 | A kind of evaporator thawing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821643244.1U CN208859986U (en) | 2018-10-10 | 2018-10-10 | A kind of evaporator thawing apparatus |
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| CN208859986U true CN208859986U (en) | 2019-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186165A (en) * | 2018-10-10 | 2019-01-11 | 株洲利德英可电子科技有限公司 | A kind of evaporator thawing apparatus |
| CN111780460A (en) * | 2020-06-11 | 2020-10-16 | 珠海格力电器股份有限公司 | Combined heat exchanger and refrigerator |
-
2018
- 2018-10-10 CN CN201821643244.1U patent/CN208859986U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186165A (en) * | 2018-10-10 | 2019-01-11 | 株洲利德英可电子科技有限公司 | A kind of evaporator thawing apparatus |
| CN111780460A (en) * | 2020-06-11 | 2020-10-16 | 珠海格力电器股份有限公司 | Combined heat exchanger and refrigerator |
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