CN203478716U - Micro-channel evaporator for refrigeration appliance and refrigeration appliance - Google Patents
Micro-channel evaporator for refrigeration appliance and refrigeration appliance Download PDFInfo
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- CN203478716U CN203478716U CN201320532950.XU CN201320532950U CN203478716U CN 203478716 U CN203478716 U CN 203478716U CN 201320532950 U CN201320532950 U CN 201320532950U CN 203478716 U CN203478716 U CN 203478716U
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Abstract
The utility model provides a micro-channel evaporator for a refrigeration appliance and the refrigeration appliance. The body of the micro-channel evaporator is tabulate and comprises a pair of parallel collecting pipes. At least one of the collecting pipe is provided with an ultrasonic transducer which is vertical to the axial direction of the collecting pipe. An arc groove corresponding to the outer surface of the corresponding collecting pipe is formed at the bottom of the radiating face of each ultrasonic transducer, and the ultrasonic transducer can be clamped to the collecting pipe through the groove. By the structure, due to the fact that each ultrasonic transducer is disposed on the corresponding collecting pipe, the boundary layers of the coolant flowing in the pipeline can be reduced, the heat exchanging efficiency of the micro-channel evaporator can be increased favorably, and frosting control and frost removing of the micro-channel evaporator can be achieved.
Description
Technical field
The utility model relates to a kind of micro-channel evaporator for electric refrigerator and electric refrigerator.
Background technology
Due to micro-channel heat exchanger adopt integrated structure and heat exchange efficiency high, it is considered to substitute the new type heat exchanger of wing-pipe heat exchanger.Yet, due to micro-channel heat exchanger, there is the problems such as fouling, frosting, water blockoff, limited its application of high efficient heat exchanging advantage on evaporimeter, for example, micro-channel heat exchanger major applications is on single cool condenser, and only a few is applied on evaporimeter.In addition, in view of ultrasonic wave has the effect of scale removal/antiscale, in recent years, it is used on wing-tubular evaparator gradually for defrosting, but there is no the application case on micro-channel heat exchanger.
For example, application number is that the open text of 201220164105.7 patent has proposed a kind of air-conditioner with ultrasound wave defrosting, cleaning function, bottom at the condenser of air-conditioner is fixed with the transducer being connected with supersonic generator, this transducer runs through the heat exchange fin of condenser, and be fixed on the opposite end plate of condenser, can atomization condensed water by supersonic generator, can also be suppressed on condenser and produce frost and minimizing defrosting time, be conducive to improve condenser heat exchange efficiency simultaneously.Yet, in aforementioned techniques scheme, only propose to arrange ultrasonic transducer and solve defrosting problem on condenser, and be mainly the application of the wing-pipe heat exchanger based on traditional, it is not yet in conjunction with at present the micro-channel heat exchanger structure of relative new and frosting, the defrosting problem of not considering how to solve micro-channel heat exchanger.
Utility model content
In view of this, main purpose of the present utility model is, provide a kind of and can effectively defrost, the micro-channel evaporator for electric refrigerator and the electric refrigerator of preventing frosting, to guarantee frostless/few white state of evaporator surface, and further strengthen the heat exchange efficiency of evaporimeter.
For achieving the above object, the utility model proposes a kind of micro-channel evaporator for electric refrigerator, comprise a pair of collector be arrangeding in parallel, it is characterized in that, a described collector is provided with and its axial vertical ultrasonic transducer at least therein, and this ultrasonic transducer is directly connected on described collector.
Adopt said structure, because collector described at least one is provided with and its axial vertical ultrasonic transducer, when ultrasonic transducer vibrates, can add by the overall structure advantage of micro-channel evaporator the transmission effect of strong vibration, thereby reduce the boundary layer producing when refrigerant flows in pipeline, be conducive to improve the heat exchange efficiency of micro-channel evaporator.Meanwhile, by ultrasonic transducer, can also play the effect that suppresses frosting, defrosting to micro-channel evaporator.In addition, because ultrasonic transducer is directly connected on described collector, can improve and pass the effect of shaking, thereby be conducive to improve the defrosting effect of micro-channel evaporator.
Preferably, in the bottom of the radiating surface of described ultrasonic transducer, form the groove corresponding with the outer surface of described collector, described ultrasonic transducer is connected on described collector by this groove.
Adopt said structure, because described ultrasonic transducer is connected on described collector by groove, can make more easily described ultrasonic transducer be fixed on connecting plate, be conducive to simplify installation process and the difficulty of ultrasonic transducer.
Preferably, the main body of described micro-channel evaporator is tabular, and described ultrasonic transducer and this main body are in same plane.
Adopt said structure, because described ultrasonic transducer and this main body are in same plane, can add the transmission effect of strong vibration, be conducive to improve the heat transfer effect of micro-channel evaporator and suppress better frosting, defrosting.
Preferably, be provided with a plurality of flat tubes with microchannel between described a pair of collector, these a plurality of flat tubes are vertical with described collector and be set parallel to each other respectively, and the two ends of single described flat tube are communicated with described a pair of collector respectively.
Adopt said structure, described flat tube and collector are joined together to form a whole MCA, with respect to conventional wing-pipe heat exchanger, be conducive to strengthen the transmission effect of vibration and the transmission loss of minimizing ultrasonic vibrational energy that ultrasonic transducer produces.
Preferably, described ultrasonic transducer is arranged on described in one of them on collector, and this collector has the inlet tube that imports for refrigerant and for the outlet of refrigerant output.
The utility model has also proposed a kind of electric refrigerator, it is characterized in that, described electric refrigerator comprises the micro-channel evaporator for electric refrigerator described in aforementioned middle any one.What it produced has a mind to effect as hereinbefore, at this, does not repeat.
Preferably, described electric refrigerator is at least one in air-conditioning, refrigerator and refrigerator.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of micro-channel evaporator;
Fig. 2 is the top view of micro-channel evaporator shown in Fig. 1;
Fig. 3 is the side view of ultrasonic transducer in Fig. 1.
The specific embodiment
Take below and be arranged on micro-channel evaporator on air-conditioning and with reference to 1～3 pair, accompanying drawing is described in the utility model, for the micro-channel evaporator of electric refrigerator and the specific embodiment of electric refrigerator, be described in detail as example.
As shown in FIG. 1 to 3, micro-channel evaporator comprises the collector 2 of a pair of circle be arrangeding in parallel, between this pair of collector 2, is provided with a plurality of flat tubes 1, and these a plurality of flat tubes 1 are vertical with this pair of collector 2 and be set parallel to each other respectively.Wherein, the two ends of each flat tube 1 are communicated with aforementioned a pair of collector 2 respectively, in collector 1, are provided with dividing plate, by this dividing plate, evaporimeter runner are separated into several flow processs.Each flat tube 1 has many trickle runners conventionally, and its cross section is aperture between the cellular of 10～1000 μ m.Between aforementioned a pair of collector 2, be also provided with a plurality of fins that be arranged in parallel 7, this fin 7 is made by the sheet metal of saw-toothed cross section, they are clamped between adjacent two flat tubes 1, so, collector 2, flat tube 1 and fin 7 these threes are joined together to form an integral body, make the main body of micro-channel evaporator be tabular.
On collector 2 above being positioned at, be also provided with inlet tube 3 and outlet 5, normally in service, refrigerant enters collector 2 by inlet tube 3, then in collector 2, is divided into many branch roads along flat tube 1 circulation to carry out heat exchange, and the refrigerant after heat exchange is discharged by outlet 6.
As shown in Figure 1, above the outer surface of collector 2 between inlet tube 3 and outlet 5, be provided with ultrasonic transducer 4, and this ultrasonic transducer 4 with the main body of micro-channel evaporator in same plane.Particularly, ultrasonic transducer 4 has and is trumpet-shaped radiating surface 41, in the bottom of this radiating surface 41, offer the arc groove corresponding with the outer surface of collector 2 42, ultrasonic transducer 4 is connected on the outer surface of collector 2 by this groove 42, also can utilize screw that the wall portion that forms this groove 41 is tightened together with collector 2 and utilize ultrasonic wave to shake a special glue glue (for example AB glue) is auxiliary fixes, can strengthen thus the fix tightly solidity of ultrasonic transducer 4 on collector 2.Wherein, ultrasonic transducer 4 is the device of mechanical energy that high-frequency electrical energy can be converted into of the prior art, specifically by the piezo-electric effect of material, is converted electrical signals to the high-frequency mechanical vibration of small amplitude.
By upper, owing to being directly fixed with ultrasonic transducer 4 on collector 2, by this ultrasonic transducer 4, to collector 2, apply the ultrasonic vibration of high frequency, micro-amplitude, can this ultrasonic vibration be passed to fin surface better by the integrated syndeton of micro-channel evaporator, thereby make whole micro-channel heat exchanger in vibrational state, can strengthen passing the effect of shaking, thereby reduce refrigerant in the interior boundary layer producing when mobile of flat tube 1, be conducive to improve the heat transfer effect of evaporimeter.In addition, micro-channel evaporator can produce the vibration of low frequency large amplitude when work due to the flow-induced vibration of refrigerant, the ultrasonic vibration of the high frequency/micro-amplitude producing by the ultrasonic transducer 4 that superposes at evaporator surface, can utilize shock effect and the shearing force effect of huge acceleration to remove the early stage hoar crystal body producing in micro-channel evaporator surface, all the time maintain the frostless or few white state of evaporator surface, can play the effect that suppresses frosting, defrosting to micro-channel evaporator.In addition, because ultrasonic transducer 4 is directly connected on collector 2, can improve and pass the effect of shaking, thereby be conducive to improve the defrosting effect of micro-channel evaporator.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
For example, in the above-described embodiments, take and be arranged on the description that the micro-channel evaporator on air-conditioning carries out as example, yet not limited thereto, this micro-channel evaporator also can be applicable on the household refrigerating appliances such as refrigerator, refrigerator.
Again for example, in the above-described embodiments, ultrasonic transducer 4 is with the main body of micro-channel evaporator in same plane, yet not limited thereto, this ultrasonic transducer also can be perpendicular to micro-channel evaporator main body place plane layout.
Claims (7)
1. the micro-channel evaporator for electric refrigerator, comprise a pair of collector (2) be arrangeding in parallel, it is characterized in that, a described collector (2) is provided with and its axial vertical ultrasonic transducer (4) at least therein, and this ultrasonic transducer (4) is directly connected on described collector (2).
2. according to the micro-channel evaporator described in claim 1, it is characterized in that, the groove (42) corresponding with the outer surface of described collector (2) formed on the bottom at the radiating surface (41) of described ultrasonic transducer (4), and described ultrasonic transducer (4) is connected on described collector (2) by this groove (41).
3. according to the micro-channel evaporator described in claim 1, it is characterized in that, the main body of described micro-channel evaporator is tabular, and described ultrasonic transducer (4) and this main body are in same plane.
4. according to the micro-channel evaporator described in claim 1, it is characterized in that, between described a pair of collector (2), be provided with a plurality of flat tubes (1) with microchannel, these a plurality of flat tubes (1) are vertical with described collector (2) and be set parallel to each other respectively, and the two ends of single described flat tube (1) are communicated with described a pair of collector (2) respectively.
5. according to the micro-channel evaporator described in claim 1, it is characterized in that, it is upper that described ultrasonic transducer (4) is arranged on described in one of them collector (2), and this collector (2) has the inlet tube (3) that imports for refrigerant and for the outlet (5) of refrigerant output.
6. an electric refrigerator, is characterized in that, described electric refrigerator comprises the micro-channel evaporator for electric refrigerator described in any one in claim 1～5.
7. according to the electric refrigerator described in claim 6, it is characterized in that, described electric refrigerator is at least one in air-conditioning, refrigerator and refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532950.XU CN203478716U (en) | 2013-08-29 | 2013-08-29 | Micro-channel evaporator for refrigeration appliance and refrigeration appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532950.XU CN203478716U (en) | 2013-08-29 | 2013-08-29 | Micro-channel evaporator for refrigeration appliance and refrigeration appliance |
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| Publication Number | Publication Date |
|---|---|
| CN203478716U true CN203478716U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532950.XU Expired - Lifetime CN203478716U (en) | 2013-08-29 | 2013-08-29 | Micro-channel evaporator for refrigeration appliance and refrigeration appliance |
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| Country | Link |
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| CN (1) | CN203478716U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692490A (en) * | 2018-08-01 | 2018-10-23 | 珠海格力电器股份有限公司 | ultrasonic transducer and heat exchanger |
| CN110557934A (en) * | 2019-09-18 | 2019-12-10 | 华南理工大学 | Sound field enhanced nano fluid phase change heat transfer micro-channel heat exchanger |
| CN113731326A (en) * | 2021-08-19 | 2021-12-03 | 化学与精细化工广东省实验室 | Large-volume ultrasonic tubular reactor |
-
2013
- 2013-08-29 CN CN201320532950.XU patent/CN203478716U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692490A (en) * | 2018-08-01 | 2018-10-23 | 珠海格力电器股份有限公司 | ultrasonic transducer and heat exchanger |
| CN110557934A (en) * | 2019-09-18 | 2019-12-10 | 华南理工大学 | Sound field enhanced nano fluid phase change heat transfer micro-channel heat exchanger |
| CN110557934B (en) * | 2019-09-18 | 2024-02-13 | 华南理工大学 | Sound field enhanced nanofluid phase-change heat transfer micro-channel heat exchanger |
| CN113731326A (en) * | 2021-08-19 | 2021-12-03 | 化学与精细化工广东省实验室 | Large-volume ultrasonic tubular reactor |
| CN113731326B (en) * | 2021-08-19 | 2023-11-03 | 墨格微流科技(汕头)有限公司 | Large-volume ultrasonic tube reactor |
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| GR01 | Patent grant | ||
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Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |