CN208222973U - A kind of ultrasound wave defrosting equipment - Google Patents
A kind of ultrasound wave defrosting equipment Download PDFInfo
- Publication number
- CN208222973U CN208222973U CN201721863514.5U CN201721863514U CN208222973U CN 208222973 U CN208222973 U CN 208222973U CN 201721863514 U CN201721863514 U CN 201721863514U CN 208222973 U CN208222973 U CN 208222973U
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- sheet
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- 238000010257 thawing Methods 0.000 title claims abstract description 34
- 238000002604 ultrasonography Methods 0.000 title abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Defrosting Systems (AREA)
Abstract
The utility model discloses a kind of ultrasound wave defrosting equipment, including sensor, be set on evaporator, sensor on induction evaporation mode device whether frosting；Ultrasonic wave emitting head, set on one end of sensor；Ultrasonic wave receives head, set on the other end of sensor；Conductive sheet is set between ultrasonic wave emitting head, ultrasonic wave reception head, and the ultrasonic wave for issuing ultrasonic wave emitting head is transferred to ultrasonic wave and receives head；When frosting on evaporator, the ultrasonic wave that the ultrasonic wave emitting head issues is transferred to the ultrasonic wave and receives head by conductive sheet, and the sensor sending has white signal.The ultrasound wave defrosting equipment of the utility model, heat exchanger frosting state is directly detected by the received vibration signal of driver blade, complicated numerical value is not needed to calculate, there is no particular/special requirement to installation site, it is at low cost, solve the problems, such as that time defrosting waste affecting power food quality or defrosting not exclusively influence refrigeration system.
Description
Technical Field
The utility model relates to a fields such as wind cabinet, freezer defrosting specifically are an ultrasonic wave defrosting equipment.
Background
In a refrigeration system of a refrigerator, an evaporator is a core part for refrigeration, the frosting of the evaporator can seriously affect the refrigeration effect, and the frosting has more serious influence on a finned evaporator. When wet air flows through the evaporator, when the temperature of the fins is lower than the dew point temperature of the air, water vapor in the air is separated out and condensed on the surfaces of the fins, and when the temperature of the fins is lower than 0 ℃, condensed water can form a frost layer on the surfaces of the fins. Although the frost formation is early because the frost surface is extremely rough, the frost layer at this time functions as a fin, increasing the heat transfer rate. However, with the increase of the thickness of the frost layer, not only is the heat conduction resistance of the finned evaporator increased and the heat exchange amount reduced, but also the channel cross section area among the fins is reduced, the air flow passing through the evaporator is reduced, the heat transfer performance and the working condition of the evaporator are deteriorated, and the reduction of the air flow cross section area also causes the air resistance passing through the evaporator to be increased, so the resistance characteristic of an air circulation system is changed, and the performance of a refrigeration system is finally influenced.
The temperature and humidity are also varied in different seasons and geographical locations. At present, a defrosting system of most refrigerators adopts a timing electric heating mode, and the defrosting mode cannot make timely correspondence according to the frosting condition of an evaporator, so that the defrosting time is too long when the humidity is low, heat remains, the quality of food in the refrigerator is influenced, and electric energy is wasted; when the humidity is high, the defrosting time is short, defrosting is incomplete, when defrosting water is not led out, the system starts to refrigerate, the defrosting water freezes, an evaporator is blocked by ice due to the fact that the defrosting water enters the system, and the refrigerating system is damaged thoroughly.
Disclosure of Invention
The utility model aims at providing an ultrasonic wave defrosting equipment to solve the technical problem who exists among the prior art.
In order to solve the technical problem, the invention provides ultrasonic defrosting equipment which comprises a sensor, a defrosting unit and a control unit, wherein the sensor is arranged on an evaporator and is used for sensing whether the evaporator is frosted or not; the ultrasonic transmitting head is arranged at one end of the sensor; the ultrasonic receiving head is arranged at the other end of the sensor; the conduction sheet is arranged between the ultrasonic transmitting head and the ultrasonic receiving head and is used for transmitting the ultrasonic waves transmitted by the ultrasonic transmitting head to the ultrasonic receiving head; when frost is formed on the evaporator, the ultrasonic wave transmitted by the ultrasonic wave transmitting head is transmitted to the ultrasonic wave receiving head by the conducting piece, and the sensor transmits a frost signal.
In a preferred embodiment of the present invention, the conductive sheet includes a first sheet fixed to the ultrasonic reflection head; the second sheet body is fixed on the ultrasonic receiving head; the first sheet body and the second sheet body are arranged in a non-contact mode and are parallel to each other.
In a preferred embodiment of the present invention, the first sheet body includes a first connecting portion, and one end of the first connecting portion is fixed to the ultrasonic emitting head; the middle part of the second connecting part is connected to the other end of the first connecting part; a first piece portion having one end connected to one end of the second connection portion; a second piece part having one end connected to the other end of the second connection part; the first sheet part and the second sheet part are parallel to each other and are arranged oppositely;
in a preferred embodiment of the present invention, the first sheet is disposed between the first sheet and the second sheet.
In a preferred embodiment of the present invention, the ultrasonic defrosting apparatus further comprises a signal output end electrically connected to the PLC controller and the sensor, and the sensor outputs a frost-free signal or a frost-free signal to the PLC controller through the signal output end.
In a preferred embodiment of the present invention, the ultrasonic defrosting apparatus includes a mounting frame, the sensor is disposed in the mounting frame, and the ultrasonic transmitting head and the ultrasonic receiving head are respectively disposed at two ends of the mounting frame.
In a preferred embodiment of the present invention, the mounting frame is a "[" shaped structure.
The utility model has the advantages that: the utility model discloses an ultrasonic wave defrosting equipment, the vibration signal direct detection heat exchanger frosting state that receives through the driving disk does not need complicated numerical calculation, does not have special requirement to the mounted position, and is with low costs, has solved the extravagant electric energy of timing defrosting and has influenced food quality or the incomplete problem that influences refrigerating system of defrosting.
Drawings
The invention is further explained below with reference to the figures and examples.
Fig. 1 is a structural diagram of ultrasonic defrosting equipment in the absence of frost according to an embodiment of the present invention.
Fig. 2 is a structure diagram of the ultrasonic defrosting apparatus in defrosting according to the embodiment of the present invention.
Wherein,
1, a sensor; 2 an ultrasonic wave emitting head;
3 an ultrasonic receiving head; 5 a signal output end;
41 a first sheet body; 42 a second panel;
411 a first connection portion; 412 a second connection portion;
413 a first sheet portion; 414 second sheet portion.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
Example (b): as shown in fig. 1 and 2, the ultrasonic defrosting apparatus includes a mounting frame, a sensor 1, an ultrasonic transmitting head 2, an ultrasonic receiving head 3, a conductive sheet, and a signal output terminal 5.
The mounting bracket is of a [ -shaped structure. Sensor 1 locates in the mounting bracket, ultrasonic wave transmitting head 2 and ultrasonic wave receiving head 3 are located respectively the both ends of mounting bracket.
The mounting frame that is equipped with sensor 1 locates arbitrary position on the evaporimeter, and sensor 1 is through the vibrations response of driving plate frost formation on the evaporimeter. The ultrasonic transmitting head 2 is arranged at one end of the sensor 1; the ultrasonic receiving head 3 is arranged at the other end of the sensor 1; the conducting piece is arranged between the ultrasonic transmitting head 2 and the ultrasonic receiving head 3 and is used for transmitting the ultrasonic waves transmitted by the ultrasonic transmitting head 2 to the ultrasonic receiving head 3; when the evaporator frosts and the frosting layer covers the conducting sheet, the ultrasonic wave emitted by the ultrasonic transmitting head 2 is transmitted by the conducting sheet, the conducting sheet vibrates, and the ultrasonic wave is transmitted to the ultrasonic receiving head 3 through the conducting sheet. At this time, the sensor 1 detects the vibration of the conductive sheet and sends a frost signal.
The conducting piece comprises a first piece body 41 and a second piece body 42, and the first piece body 41 is fixed on the ultrasonic reflection head; the second sheet 42 is fixed on the ultrasonic receiving head 3; the first blade 41 and the second blade 42 are parallel to each other and are arranged in a non-contact manner. The first sheet 41 includes a first connecting portion 411, a second connecting portion 412, a first sheet portion 413, and a second sheet portion 414, wherein one end of the first connecting portion 411 is fixed to the ultrasound emitting head 2; the middle of the second connection part 412 is connected to the other end of the first connection part 411; one end of the first piece 413 is connected to one end of the second connection part 412; one end of the second piece 414 is connected to the other end of the second connection part 412; the first sheet 413 and the second sheet 414 are parallel to each other and are disposed opposite to each other; the first sheet 41 is disposed between the first sheet 413 and the second sheet 414.
The signal output end 5 is a signal wire and is electrically connected with the PLC and the sensor 1, and the sensor 1 outputs a frostless signal or a frosted signal to the controller through the signal output end 5.
When the frost-free air conditioner is used in a specific mode, when frost is not generated, air conduction ultrasonic waves are weak, the ultrasonic receiving head 3 cannot receive signals, and the sensor 1 outputs frost-free signals through signal lines; when the evaporator frosts, the frost layer is connected with the conducting sheet, the ultrasonic wave emitted by the ultrasonic wave emitting head 2 is transmitted to the ultrasonic wave receiving head 3 through the transmitting sheet, and the sensor 1 outputs a frosted signal through a signal line.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. An ultrasonic defrosting apparatus, characterized by comprising
The sensor is arranged on the evaporator and used for sensing whether the evaporator frosts;
the ultrasonic transmitting head is arranged at one end of the sensor;
the ultrasonic receiving head is arranged at the other end of the sensor;
the conduction sheet is arranged between the ultrasonic transmitting head and the ultrasonic receiving head and is used for transmitting the ultrasonic waves transmitted by the ultrasonic transmitting head to the ultrasonic receiving head;
when frost is formed on the evaporator, the conduction piece transmits the ultrasonic wave that the ultrasonic wave transmitting head sent to the ultrasonic wave receiving head, the sensor sends out when detecting the ultrasonic wave vibrations of conduction piece and has the frost signal.
2. The ultrasonic defrosting apparatus of claim 1 wherein the conductive sheet comprises
The first sheet body is fixed on the ultrasonic reflection head;
the second sheet body is fixed on the ultrasonic receiving head;
the first sheet body and the second sheet body are arranged in a non-contact mode and are parallel to each other.
3. The ultrasonic defrosting apparatus of claim 2 wherein the first sheet comprises
One end of the first connecting part is fixed on the ultrasonic transmitting head;
the middle part of the second connecting part is connected to the other end of the first connecting part;
a first piece portion having one end connected to one end of the second connection portion;
a second piece part having one end connected to the other end of the second connection part;
the first sheet part and the second sheet part are parallel to each other and are arranged oppositely;
the first sheet is disposed between the first sheet and the second sheet.
4. The ultrasonic defrosting apparatus of claim 1 further comprising a signal output,
the sensor is electrically connected with the PLC controller and the sensor, and the sensor outputs a frost-free signal or a frost signal to the PLC controller through a signal output end.
5. The ultrasonic defrosting apparatus of claim 1 further comprising a mounting frame, wherein the sensor is disposed in the mounting frame, and the ultrasonic transmitter and the ultrasonic receiver are disposed at two ends of the mounting frame, respectively.
6. The ultrasonic defrosting apparatus of claim 5 wherein the mounting bracket is a "[" shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863514.5U CN208222973U (en) | 2017-12-27 | 2017-12-27 | A kind of ultrasound wave defrosting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863514.5U CN208222973U (en) | 2017-12-27 | 2017-12-27 | A kind of ultrasound wave defrosting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208222973U true CN208222973U (en) | 2018-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721863514.5U Active CN208222973U (en) | 2017-12-27 | 2017-12-27 | A kind of ultrasound wave defrosting equipment |
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| Country | Link |
|---|---|
| CN (1) | CN208222973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849050A (en) * | 2019-11-19 | 2020-02-28 | 浙江工业大学 | Heat pump defrosting control device and control method by utilizing fan vibration and neural network |
-
2017
- 2017-12-27 CN CN201721863514.5U patent/CN208222973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849050A (en) * | 2019-11-19 | 2020-02-28 | 浙江工业大学 | Heat pump defrosting control device and control method by utilizing fan vibration and neural network |
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