CN110613895A - Resonant cavity device - Google Patents
Resonant cavity device Download PDFInfo
- Publication number
- CN110613895A CN110613895A CN201910762115.7A CN201910762115A CN110613895A CN 110613895 A CN110613895 A CN 110613895A CN 201910762115 A CN201910762115 A CN 201910762115A CN 110613895 A CN110613895 A CN 110613895A
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- China
- Prior art keywords
- cylinder
- middle cylinder
- outer cylinder
- input line
- thick bamboo
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- 230000005684 electric field Effects 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims description 32
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 19
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 19
- 241001330002 Bambuseae Species 0.000 claims description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 19
- 239000011425 bamboo Substances 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000554 physical therapy Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
Abstract
The invention belongs to the field of physical therapy equipment, and particularly relates to a resonant cavity device which comprises an outer cylinder, a middle cylinder and an inner cylinder, wherein the middle cylinder is sleeved on the outer side of the inner cylinder, the middle cylinder and the inner cylinder are fixedly isolated through a plurality of supporting rods, the outer cylinder is sleeved on the outer side of the middle cylinder, the top end of the middle cylinder and the top end of the outer cylinder are fixedly welded with the bottom surface of a first fixing plate of an annular structure, the bottom end of the inner cylinder and the bottom end of the outer cylinder are both welded with the top surface of a second fixing plate of the annular structure, and the top end of the inner cylinder is fixedly welded with the bottom surface of a. According to the invention, the resonant cavity device aims at high-energy radio frequency with specific frequency of 40.68MHz, an annular resonant cavity is formed by the outer cylinder, the middle cylinder and the inner cylinder, radio frequency energy is fed, meanwhile, the outer cylinder, the middle cylinder and the inner cylinder form open capacitance and short-circuit inductance, so that resonance is generated, and the high-frequency energy is output through an electric field between the inner cylinder and the middle cylinder, so that the loss of equipment is reduced, the utilization efficiency of energy is improved, and the resonant cavity device has the advantages of simple structure and mature processing technology.
Description
Technical Field
The invention relates to the field of physical therapy equipment, in particular to a resonant cavity device.
Background
The whole human body is a biological electric field system, and people find that the purposes of treating diseases and building body can be achieved by using proper electromagnetic waves to act on the human body through research, and the biological electric field system is beneficial to the human body. The method of treating diseases and health care by applying ultrahigh frequency alternating current with electromagnetic wave wavelength of 10-1 m and frequency of 30-300 MHz to human body is called ultrashort wave therapy. The ultra-short wave has high frequency, so it is not suitable to use the inductance method, and the capacitance electrode method is mostly used. The working principle of the capacitance electrode ultrashort wave therapy is as follows: high-frequency electromagnetic waves (such as the radio frequency of 40.68MHz) are generated through a circuit, and are radiated by a capacitor electrode to output energy to act on a human body after being filtered, amplified and coupled and detected.
The existing capacitance electrode ultrashort wave therapy has the following problems: when the existing device generates high-frequency electromagnetic waves, energy radiated by the capacitor electrode can radiate to other places in space besides acting on the human body, the radiation leakage is large, the utilization rate of the energy is not high, and the power consumption of the whole device is high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a resonant cavity device, which solves the problems that the energy radiated by a capacitor electrode has larger leakage and low utilization rate of the energy except the effect on a human body.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a resonant cavity device, includes urceolus, well section of thick bamboo and inner tube, well section of thick bamboo overlaps in the outside of inner tube, and through the fixed isolation of a plurality of bracing piece between well section of thick bamboo and the inner tube, the outside cover of well section of thick bamboo has the urceolus, the top of well section of thick bamboo and the top of urceolus all with the bottom surface welded fastening of the first fixed plate of loop configuration, the bottom of inner tube and the bottom of urceolus all with the top surface welding of the second fixed plate of loop configuration, the top of inner tube and the third fixed plate bottom surface welded fastening of circular structure.
As a preferred technical solution of the present invention, a coaxial line is disposed at one side of the outer cylinder, the coaxial line includes an input line outer conductor and an input line inner conductor, and the input line inner conductor is located inside the input line outer conductor.
As a preferable technical solution of the present invention, the input end of the input line outer conductor is electrically connected to the outer cylinder, and the input end of the input line inner conductor passes through the outer cylinder and is electrically connected to the middle cylinder.
As a preferred technical scheme of the invention, the outer side of the inner cylinder close to the top end is fixedly connected with the inner wall of the middle cylinder through a plurality of support rods, the inner side of the middle cylinder close to the bottom end is fixedly connected with the outer wall of the inner cylinder through a plurality of support rods, the support rods are uniformly distributed, and the support rods are made of polytetrafluoroethylene.
As a preferable technical scheme of the invention, the outer cylinder and the inner cylinder are equal in height, and the middle cylinder is smaller than the outer cylinder in height.
According to a preferred technical scheme of the invention, the outer cylinder, the middle cylinder and the inner cylinder form an open capacitor, the middle cylinder and the inner cylinder form two poles of the open capacitor, and the top end of the middle cylinder and the top end of the outer cylinder are welded and fixed with the bottom surface of the first fixing plate in the annular structure to form the short-circuit inductor.
As a preferable technical solution of the present invention, the input line outer conductor is electrified with the outer cylinder, and after the input line inner conductor is electrified with the outer cylinder, an electric field is generated between the middle cylinder and the inner cylinder, and a direction of the electric field is directed from the inner cylinder to the middle cylinder.
(III) advantageous effects
Compared with the prior art, the invention provides a resonant cavity device, which has the following beneficial effects:
the resonant cavity device is characterized in that the specific frequency is 40.68MHz high-energy radio frequency, the outer cylinder, the middle cylinder and the inner cylinder form an annular resonant cavity, when radio frequency energy is sent in, the annular resonant cavity is matched to carry out high-efficiency output radiation output of the energy, meanwhile, the outer cylinder, the middle cylinder and the inner cylinder form an open capacitor, the high-frequency energy is output through an electric field between the inner cylinder and the middle cylinder, basically, the high-frequency energy acts on a human body and is not leaked, the loss of equipment is reduced, the utilization rate of the energy is improved, and the resonant cavity device has the advantages of simple structure and mature processing technology.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a partial cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a diagram showing the electric field distribution in the present embodiment;
FIG. 4 is an equivalent circuit diagram of the present invention;
fig. 5 is a schematic diagram of a parallel single-node impedance matching structure according to the present invention.
In the figure: 1. an outer cylinder; 2. a middle cylinder; 3. an inner barrel; 4. a support bar; 5. a first fixing plate; 6. a second fixing plate; 7. a coaxial line; 701. an input line outer conductor; 702. an input line inner conductor; 8. and a third fixing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a resonant cavity device, including urceolus 1, well section of thick bamboo 2 and inner tube 3, well section of thick bamboo 2 overlaps in the outside of inner tube 3, and through the fixed isolation of a plurality of bracing piece 4 between well section of thick bamboo 2 and the inner tube 3, the outside cover of well section of thick bamboo 2 has urceolus 1, the top of well section of thick bamboo 2 and the top of urceolus 1 all with the bottom surface welded fastening of the first fixed plate 5 of loop configuration, the bottom of inner tube 3 and the bottom of urceolus 1 all with the top surface welding of the second fixed plate 6 of loop configuration, the top of inner tube 3 and the 8 bottom surface welded fastening of the third fixed plate.
In the embodiment, an outer cylinder 1, a middle cylinder 2 and an inner cylinder 3 which are made of metal conductive materials with different radiuses and lengths are sequentially sleeved to form an annular resonant cavity, wherein the middle cylinder 2 is slightly shorter than the inner cylinder 3 and the outer cylinder 1, and the middle cylinder 2 and the inner cylinder 3 are fixedly isolated by a support rod 4 made of polytetrafluoroethylene materials to form two poles of an open capacitor.
Specifically, a coaxial line 7 is disposed on one side of the outer cylinder 1, the coaxial line 7 includes an input line outer conductor 701 and an input line inner conductor 702, and the input line inner conductor 702 is located inside the input line outer conductor 701.
In this embodiment, a coaxial line 7 is connected to a suitable position of the outer cylinder 1 for connecting high-frequency power.
Specifically, the input end of the input line outer conductor 701 is electrically connected to the outer cylinder 1, and the input end of the input line inner conductor 702 passes through the outer cylinder 1 and is electrically connected to the inner cylinder 2.
In this embodiment, the input line outer conductor 701 is connected to the outer cylinder 1, the input line inner conductor 702 is connected to the middle cylinder 2, and when the coaxial line 7 is connected to the rf source, a high frequency voltage is generated between the middle cylinder 2 and the outer cylinder 1, thereby generating an electric field.
Specifically, the outside that inner tube 3 is close to top department is fixed through the inner wall connection of a plurality of bracing piece 4 with well section of thick bamboo 2, and the inboard that well section of thick bamboo 2 is close to bottom department is fixed through the outer wall connection of a plurality of bracing piece 4 with inner tube 3, and bracing piece 4 evenly distributed, and the material of bracing piece 4 is polytetrafluoroethylene.
In this embodiment, since the inner cylinder 3 and the middle cylinder 2 cannot be bonded to each other to maintain a constant distance, the support rod 4 is connected to the inner cylinder 3 and the middle cylinder 2 near both ends, and the support rod 4 is made of a high-voltage-resistant insulating material.
Specifically, the middle cylinder 2 and the inner cylinder 3 are equal in height, and the middle cylinder 2 is smaller than the outer cylinder 1 in height.
In this embodiment, the middle cylinder 2 and the inner cylinder 3 are equal in height and staggered in position, and when the outer cylinder 1 is higher, the bottom end of the middle cylinder 2 and the top end of the inner cylinder 3 are not communicated with the outer cylinder 1.
Specifically, the outer cylinder 1, the middle cylinder 2 and the inner cylinder 3 constitute an open capacitor, and the middle cylinder 2 and the inner cylinder 3 constitute two poles of the open capacitor.
In this embodiment, the electric field is generated by the potential difference between the middle cylinder 2 and the inner cylinder 3, and high-efficiency output of high-frequency energy is realized.
Specifically, when the input line outer conductor 701 is electrified with the outer cylinder 1, and the input line inner conductor 702 is electrified with the middle cylinder 2, an electric field is generated between the middle cylinder 2 and the inner cylinder 3, and the direction of the electric field is directed to the middle cylinder 2 from the inner cylinder 3.
In this embodiment, since the direction of the electric field is directed from the inner cylinder 3 to the middle cylinder 2, the outer cylinder 1, the middle cylinder 2, and the inner cylinder 3 form an open capacitor, so that charges can move, a cycle is formed, and reduction of power consumption is achieved.
The working principle and the using process of the invention are as follows:
the micro ring resonator capacitor electrode mainly comprises a coaxial line 7, an outer cylinder 1, a middle cylinder 2 and an inner cylinder 3, when the coaxial line 7 is electrified, an input line outer conductor 701 is electrified with the outer cylinder 1, an input line inner conductor 702 is electrified with the middle cylinder 2, so that charges are stored in the micro ring resonator capacitor electrode, due to the fact that pressure difference exists between the inner cylinder 3 and the middle cylinder 2, the charges move in the micro ring resonator capacitor electrode to form an electric field, the direction of the electric field points to the middle cylinder 2, a parallel single-branch impedance matching is formed by short-circuit branches with the length l parallel to the position, away from a load d, of a main transmission line, when radio-frequency energy is sent to pass through the micro ring resonator capacitor electrode, the outer cylinder 1, the middle cylinder 2 and the inner cylinder 3 are matched to form a ring resonator, and energy radiation output.
The equivalent circuit shown in FIG. 4, where VGFor a voltage source, C is the capacitance of the load as seen by the feed point, R is the resistance of the load as seen by the feed point, and L is the inductance of the conductor in the coaxial input line as seen by the feed point. When the capacitive reactance 1/ω · C is equal to the inductive reactance ω · L, the line resonates, ω being the circular frequency, ω being 2 · pi · f, f being the frequency.
ω·L＝1/ω·C
When the resonance frequency is the working frequency, the working state is achieved.
As shown in fig. 5, the parallel single-branch impedance matching structure is formed by connecting short-circuit branches with length l in parallel at a position d away from the load on the main transmission line, and the load impedance is ZL, the admittance is YL, and the normalized admittance is YL, as long as Z is the same as ZLThe real part is not zero, and a proper d value can be selected on the main transmission line, so that the input normalized admittance is 1+ j Xd, and j Xd is the susceptance at d.
And d, connecting the short-circuit branch sections in parallel, and adjusting the length l of the short-circuit branch sections to enable the input admittance YL of the short-circuit branch sections to be-j Xd.
After parallel connection, yin is equal to 1, Zin is equal to 1, and matching is achieved at the parallel connection position.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a resonant cavity device, includes urceolus (1), well section of thick bamboo (2) and inner tube (3), its characterized in that: well section of thick bamboo (2) cover in the outside of inner tube (3), and through a plurality of bracing piece (4) fixed isolation between well section of thick bamboo (2) and inner tube (3), the outside cover of well section of thick bamboo (2) has urceolus (1), the top of well section of thick bamboo (2) and the top of urceolus (1) all with the bottom surface welded fastening of first fixed plate (5) of loop configuration, the bottom of inner tube (3) and the bottom of urceolus (1) all with the top surface welding of second fixed plate (6) of loop configuration, the top of inner tube and the third fixed plate bottom surface welded fastening (8) of loop configuration.
2. A resonator arrangement according to claim 1, wherein: a coaxial line (7) is arranged on one side of the outer cylinder (1), the coaxial line (7) comprises an input line outer conductor (701) and an input line inner conductor (702), and the input line inner conductor (702) is located inside the input line outer conductor (701).
3. A resonator arrangement according to claim 2, wherein: the input end of the input line outer conductor (701) is electrically connected with the outer cylinder (1), and the input end of the input line inner conductor (702) penetrates through the outer cylinder (1) and is electrically connected with the middle cylinder (2).
4. A resonator arrangement according to claim 1, wherein: the outer side that inner tube (3) are close to top department is fixed through the interior wall connection of a plurality of bracing piece (4) and well section of thick bamboo (2), the inboard that well section of thick bamboo (2) are close to bottom department is fixed through the outer wall connection of a plurality of bracing piece (4) and inner tube (3), and bracing piece (4) evenly distributed, the material of bracing piece (4) is polytetrafluoroethylene.
5. A resonator arrangement according to claim 1, wherein: the outer cylinder (1) and the inner cylinder (3) are equal in height, and the middle cylinder (2) is smaller than the outer cylinder (1).
6. A resonator arrangement according to claim 1, wherein: the outer cylinder (1), the middle cylinder (2) and the inner cylinder (3) form an open capacitor, the middle cylinder (2) and the inner cylinder (3) form two poles of the open capacitor, and the top end of the middle cylinder (2) and the top end of the outer cylinder (1) are welded and fixed with the bottom surface of the first fixing plate (5) of the annular structure to form a short-circuit inductor.
7. A resonator arrangement according to claim 3 or 6, characterized in that: the input line outer conductor (701) is electrified with the outer cylinder (1), after the input line inner conductor (702) is electrified with the outer cylinder (1), an electric field is generated between the middle cylinder (2) and the inner cylinder (3), and the direction of the electric field points to the middle cylinder (2) from the inner cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910762115.7A CN110613895A (en) | 2019-08-19 | 2019-08-19 | Resonant cavity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910762115.7A CN110613895A (en) | 2019-08-19 | 2019-08-19 | Resonant cavity device |
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| Publication Number | Publication Date |
|---|---|
| CN110613895A true CN110613895A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910762115.7A Pending CN110613895A (en) | 2019-08-19 | 2019-08-19 | Resonant cavity device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100998519A (en) * | 2006-12-31 | 2007-07-18 | 南京恒埔伟业科技股份有限公司 | Radio-frequency thermotherapy apparatus for eliminating defect of subcutaneous fat superheat |
| CN201573002U (en) * | 2009-11-24 | 2010-09-08 | 湖南航天近空间飞行器研发中心 | High-frequency heat-seal welding device |
| CN106902456A (en) * | 2017-03-06 | 2017-06-30 | 詹佳境 | A kind of resonator and RF heat therapy equipment for RF heat therapy equipment |
| CN211301761U (en) * | 2019-08-19 | 2020-08-21 | 南京从景生物技术有限公司 | Resonant cavity device |
-
2019
- 2019-08-19 CN CN201910762115.7A patent/CN110613895A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100998519A (en) * | 2006-12-31 | 2007-07-18 | 南京恒埔伟业科技股份有限公司 | Radio-frequency thermotherapy apparatus for eliminating defect of subcutaneous fat superheat |
| CN201573002U (en) * | 2009-11-24 | 2010-09-08 | 湖南航天近空间飞行器研发中心 | High-frequency heat-seal welding device |
| CN106902456A (en) * | 2017-03-06 | 2017-06-30 | 詹佳境 | A kind of resonator and RF heat therapy equipment for RF heat therapy equipment |
| CN211301761U (en) * | 2019-08-19 | 2020-08-21 | 南京从景生物技术有限公司 | Resonant cavity device |
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Address after: 210000 floor 1-4, building 17, area 1, phase II, No. 1001, Fuying Road, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING CONGJING BIOTECHNOLOGY Co.,Ltd. Address before: 210000 2nd floor, building 13, Zijin workshop, 33 Maqun street, Qixia District, Nanjing City, Jiangsu Province Applicant before: NANJING CONGJING BIOTECHNOLOGY Co.,Ltd. |
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