CN110012928A - A kind of removable plane-parallel capacitor defrosting cavity and radio frequency thawing apparatus - Google Patents
A kind of removable plane-parallel capacitor defrosting cavity and radio frequency thawing apparatus Download PDFInfo
- Publication number
- CN110012928A CN110012928A CN201910335736.7A CN201910335736A CN110012928A CN 110012928 A CN110012928 A CN 110012928A CN 201910335736 A CN201910335736 A CN 201910335736A CN 110012928 A CN110012928 A CN 110012928A
- Authority
- CN
- China
- Prior art keywords
- pole plate
- parallel capacitor
- plane
- removable
- dielectric chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
- A23B4/07—Thawing subsequent to freezing
Abstract
The invention discloses a kind of removable plane-parallel capacitor defrosting cavitys, including encapsulating housing, dielectric chamber and moveable plane-parallel capacitor；The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface, and the removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate is set between upper bottom surface and dielectric chamber, and the second pole plate is set between bottom surface and dielectric chamber.The invention also discloses a kind of radio frequency thawing apparatus.The present invention can change according to the dielectric constant of material when heating, to change the resonance frequency of resonance circuit, the case where impacting to output power.The output signal situation of change obtained by feedback loop, the distance of two electrode plates in removable plane-parallel capacitor defrosting cavity is controlled with controller, so as to stablize the output power of RF heating system, and then accelerate the rate of heat addition of the material, shortens heating time.
Description
Technical field
The present invention relates to a kind of thawing apparatus of food processing field and equipment, and in particular to a kind of removable parallel-plate electricity
Container defrosting cavity and radio frequency thawing apparatus.
Background technique
Defrosting is the important procedure before chilled meat is processed and is edible.Radio frequency deforst technique is special using the dielectric heating of food
Property, make food heat temperature raising in rf electric field, is a kind of novel defrosting means to reach defrosting purpose.With other defrostings
Method is compared, and radio frequency Thawing Rate is fast, penetration depth is big, homogeneous heating, great application potential.
The core component of RF heating system is the plane-parallel capacitor being made of upper and lower two parallel plate electrode, and material is put
It sets between two-plate, the alternating current that radiofrequency launcher generates is acted on to be added by upper and lower two-plate formation resonance circuit
The material of work, polarization motion occurs for polar molecule in material and the oscillation of hydrated ion migrates and then generate energy conversion, will
Electric energy is converted into interior energy, so as to cause material heating.With the raising of temperature of charge, the dielectric constant of material can change,
To change the resonance frequency of resonance circuit, the output function of RF heating system can be impacted.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, by the distance between two-plate above and below dynamic regulation,
The change of material dielectric constant is compensated, so as to stablize the output power of RF heating system, and then accelerates adding for the material
Hot rate shortens heating time.
The present invention is implemented as follows:
A kind of removable plane-parallel capacitor defrosting cavity, including encapsulating housing, dielectric chamber and moveable parallel-plate
Capacitor；
The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface,
The removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate is set to the upper bottom surface and institute
It states between dielectric chamber, second pole plate is set between the bottom surface and the dielectric chamber；
Further scheme is:
First pole plate is removable movable plate electrode, and when initial, lower surface fits in the dielectric chamber, upper surface court
To the upper bottom surface of the shell, the side of the first pole plate is connected with the sliding rail of up and down direction, when heating, with the change of dielectric constant
Change, which can slide up and down.The lower surface of second pole plate fits in the bottom surface of the encapsulating housing, the second pole plate
Upper surface fits in the dielectric chamber.
Further scheme is:
Second pole plate is removable movable plate electrode, and when initial, upper surface fits in the dielectric chamber, lower surface court
To the bottom surface of the shell, the side of the second pole plate is connected with the sliding rail of up and down direction, when heating, with the change of dielectric constant
Change, which can slide up and down.The upper surface of first pole plate fits in the upper bottom surface of the encapsulating housing, the second pole plate
Lower surface fits in the dielectric chamber.
Further scheme is:
First pole plate and the second pole plate are removable movable plate electrode, and when initial, the first pole plate lower surface fits in described
Dielectric chamber, towards the upper bottom surface of the shell, the side of the first pole plate is connected with the sliding rail of up and down direction, heats for upper surface
When, with the variation of dielectric constant, which can be slided up and down.When initial, the second pole plate upper surface fits in the insulated cavity
Body, towards the bottom surface of the shell, the side of the second pole plate is connected with the sliding rail of up and down direction for lower surface, when heating, with
The variation of dielectric constant, the pole plate can slide up and down.
Further scheme is:
In above-mentioned removable plane-parallel capacitor defrosting cavity, insulation is provided between first pole plate and upper bottom surface
Layer, is provided with insulating layer between second pole plate and bottom surface.
Certainly, in actual use, it is also possible to which dielectric chamber is arranged in moveable plane-parallel capacitor
The left and right sides or other in corresponding two side position of dielectric chamber, such as the direction of upper left and lower right, lower-left and upper right
Etc., it is also apparent that being that technical solution of the present invention is utilized, equally there is technical effect of the invention.
On this basis, penetrating for above-mentioned removable plane-parallel capacitor defrosting cavity is utilized the present invention also provides a kind of
Frequency thawing apparatus, the radio frequency thawing apparatus, including Setting signal source, controller, removable plane-parallel capacitor defrosting cavity
And feedback loop, controller setting the Setting signal source and the removable plane-parallel capacitor defrosting cavity it
Between, two pole plate spacing of removable plane-parallel capacitor defrosting cavity are controlled according to Setting signal source, are added to carry out radio frequency
Heat；The feedback loop is set between the removable plane-parallel capacitor and the controller, and controller is according to removable
The controlled quatity of plane-parallel capacitor defrosting cavity output adjusts the spacing between two pole plates, to reach stable radio frequency heating
The output power of system accelerates the effect of the rate of heat addition.
The present invention can change according to the dielectric constant of material when heating, thus change the resonance frequency of resonance circuit,
The case where output power is impacted.The output signal situation of change obtained by feedback loop, with controller to control
The distance of two electrode plates in removable plane-parallel capacitor defrosting cavity is stated, so as to stablize the output of RF heating system
Power, and then accelerate the rate of heat addition of the material, shorten heating time.
Detailed description of the invention
Fig. 1 is radio frequency heating schematic illustration；
Fig. 2 is radio frequency thawing apparatus control principle drawing.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of removable plane-parallel capacitor defrosting cavity, including encapsulating housing, dielectric chamber and moveable parallel-plate
Capacitor；
The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface,
The removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate is set to the upper bottom surface and institute
It states between dielectric chamber, second pole plate is set between the bottom surface and the dielectric chamber；
First pole plate is removable movable plate electrode, and when initial, lower surface fits in the dielectric chamber, upper surface court
To the upper bottom surface of the shell, the side of the first pole plate is connected with the sliding rail of up and down direction, when heating, with the change of dielectric constant
Change, which can slide up and down.The lower surface of second pole plate fits in the bottom surface of the encapsulating housing, the second pole plate
Upper surface fits in the dielectric chamber.
In above-mentioned removable plane-parallel capacitor defrosting cavity, insulation is provided between first pole plate and upper bottom surface
Layer, is provided with insulating layer between second pole plate and bottom surface.
Embodiment 2
A kind of removable plane-parallel capacitor defrosting cavity, including encapsulating housing, dielectric chamber and moveable parallel-plate
Capacitor；
The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface,
The removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate is set to the upper bottom surface and institute
It states between dielectric chamber, second pole plate is set between the bottom surface and the dielectric chamber；
Second pole plate is removable movable plate electrode, and when initial, upper surface fits in the dielectric chamber, lower surface court
To the bottom surface of the shell, the side of the second pole plate is connected with the sliding rail of up and down direction, when heating, with the change of dielectric constant
Change, which can slide up and down.The upper surface of first pole plate fits in the upper bottom surface of the encapsulating housing, the second pole plate
Lower surface fits in the dielectric chamber.
In above-mentioned removable plane-parallel capacitor defrosting cavity, insulation is provided between first pole plate and upper bottom surface
Layer, is provided with insulating layer between second pole plate and bottom surface.
Embodiment 3
A kind of removable plane-parallel capacitor defrosting cavity, including encapsulating housing, dielectric chamber and moveable parallel-plate
Capacitor；
The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface,
The removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate is set to the upper bottom surface and institute
It states between dielectric chamber, second pole plate is set between the bottom surface and the dielectric chamber；
First pole plate and the second pole plate are removable movable plate electrode, and when initial, the first pole plate lower surface fits in described
Dielectric chamber, towards the upper bottom surface of the shell, the side of the first pole plate is connected with the sliding rail of up and down direction, heats for upper surface
When, with the variation of dielectric constant, which can be slided up and down.When initial, the second pole plate upper surface fits in the insulated cavity
Body, towards the bottom surface of the shell, the side of the second pole plate is connected with the sliding rail of up and down direction for lower surface, when heating, with
The variation of dielectric constant, the pole plate can slide up and down.
In above-mentioned removable plane-parallel capacitor defrosting cavity, insulation is provided between first pole plate and upper bottom surface
Layer, is provided with insulating layer between second pole plate and bottom surface.
Embodiment 4
A kind of radio frequency thawing apparatus, including Setting signal source, controller, removable plane-parallel capacitor defrosting cavity and anti-
It is fed back to road, the controller is arranged between the Setting signal source and the removable plane-parallel capacitor defrosting cavity, root
Two pole plate spacing that removable plane-parallel capacitor defrosting cavity is controlled according to Setting signal source, to carry out radio frequency heating；Institute
It states feedback loop to be set between the removable plane-parallel capacitor and the controller, controller is according to removable parallel-plate
The controlled quatity of capacitor defrosting cavity output adjusts the spacing between two pole plates, to reach stable RF heating system
Output power accelerates the effect of the rate of heat addition, shortens heating time.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (6)
1. a kind of removable plane-parallel capacitor defrosting cavity, it is characterised in that: including encapsulating housing, dielectric chamber and move
Plane-parallel capacitor；
The dielectric chamber is set to the inside of the encapsulating housing, and the encapsulating housing includes upper bottom surface and bottom surface, described
Removable plane-parallel capacitor includes the first pole plate and the second pole plate.First pole plate be set to the upper bottom surface and it is described absolutely
Between edge cavity, second pole plate is set between the bottom surface and the dielectric chamber.
2. moving plane-parallel capacitor defrosting cavity according to claim 1, it is characterised in that:
First pole plate is removable movable plate electrode, and when initial, lower surface fits in the dielectric chamber, and upper surface is towards institute
State the upper bottom surface of shell, the side of the first pole plate is connected with the sliding rail of up and down direction, when heating, with the variation of dielectric constant,
The pole plate can slide up and down；The lower surface of second pole plate fits in the bottom surface of the encapsulating housing, the second pole plate it is upper
Surface fits in the dielectric chamber.
3. moving plane-parallel capacitor defrosting cavity according to claim 1, it is characterised in that:
Second pole plate is removable movable plate electrode, and when initial, upper surface fits in the dielectric chamber, and lower surface is towards institute
State the bottom surface of shell, the side of the second pole plate is connected with the sliding rail of up and down direction, when heating, with the variation of dielectric constant,
The pole plate can slide up and down；The upper surface of first pole plate fits in the upper bottom surface of the encapsulating housing, under the second pole plate
Surface fits in the dielectric chamber.
4. moving plane-parallel capacitor defrosting cavity according to claim 1, it is characterised in that:
First pole plate and the second pole plate are removable movable plate electrode, and when initial, the first pole plate lower surface fits in the insulation
Cavity, towards the upper bottom surface of the shell, the side of the first pole plate is connected with the sliding rail of up and down direction for upper surface, when heating,
With the variation of dielectric constant, which can be slided up and down；When initial, the second pole plate upper surface fits in the dielectric chamber,
Towards the bottom surface of the shell, the side of the second pole plate is connected with the sliding rail of up and down direction for its lower surface, when heating, with Jie
The variation of electric constant, the pole plate can slide up and down.
5. according to the removable plane-parallel capacitor defrosting cavity of Claims 2 or 3 or 4, it is characterised in that:
In the removable plane-parallel capacitor defrosting cavity, it is provided with insulating layer between first pole plate and upper bottom surface,
Insulating layer is provided between second pole plate and bottom surface.
6. a kind of radio frequency thawing apparatus, it is characterised in that: the radio frequency thawing apparatus, including Setting signal source, controller are removable
Dynamic plane-parallel capacitor defrosting cavity and feedback loop, the controller setting are put down in the Setting signal source and described move
Between parallel plate capacitor defrosting cavity, two pole plates of removable plane-parallel capacitor defrosting cavity are controlled according to Setting signal source
Spacing, to carry out radio frequency heating；The feedback loop be set to the removable plane-parallel capacitor and the controller it
Between, controller adjusts the spacing between two pole plates according to the controlled quatity that removable plane-parallel capacitor defrosting cavity exports,
To reach the output power of stable RF heating system, accelerate the effect of the rate of heat addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910335736.7A CN110012928A (en) | 2019-04-24 | 2019-04-24 | A kind of removable plane-parallel capacitor defrosting cavity and radio frequency thawing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910335736.7A CN110012928A (en) | 2019-04-24 | 2019-04-24 | A kind of removable plane-parallel capacitor defrosting cavity and radio frequency thawing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110012928A true CN110012928A (en) | 2019-07-16 |
Family
ID=67192376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910335736.7A Pending CN110012928A (en) | 2019-04-24 | 2019-04-24 | A kind of removable plane-parallel capacitor defrosting cavity and radio frequency thawing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110012928A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419562A (en) * | 2019-09-02 | 2019-11-08 | 四川长虹电器股份有限公司 | The changeable radio frequency thawing apparatus for accessing parallel plate suqare |
| CN111406788A (en) * | 2020-04-24 | 2020-07-14 | 珠海格力电器股份有限公司 | Thawing device and refrigerator |
| CN111716466A (en) * | 2020-07-06 | 2020-09-29 | 李敏 | Double-sided self-cleaning woodworking cold press |
| WO2021036419A1 (en) * | 2019-08-27 | 2021-03-04 | 上海点为智能科技有限责任公司 | Thawing heating apparatus comprising movable electrode, and method |
| CN115777864A (en) * | 2022-12-15 | 2023-03-14 | 合肥华凌股份有限公司 | Radio frequency thawing apparatus and refrigerator |
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Application publication date: 20190716 |