CN211160543U - Matcher and ultrasonic ablation device - Google Patents
Matcher and ultrasonic ablation device Download PDFInfo
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- CN211160543U CN211160543U CN201921532771.XU CN201921532771U CN211160543U CN 211160543 U CN211160543 U CN 211160543U CN 201921532771 U CN201921532771 U CN 201921532771U CN 211160543 U CN211160543 U CN 211160543U
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- connector
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- matcher
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- accommodating cavity
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Abstract
The embodiment of the application provides a matcher and an ultrasonic ablation device. The matcher is arranged between a driving power supply and an ultrasonic transducer, is used for changing load impedance to match with the impedance of the driving power supply and tuning on the working frequency of the ultrasonic transducer, and comprises the following steps: the circuit board comprises a shielding box, a circuit board, a first connector and a second connector; the shielding box is internally provided with an accommodating cavity, the circuit board is arranged in the accommodating cavity, and at least part of electronic elements of the circuit board are patch elements; the first connector and the second connector are arranged on the circuit board, and the connecting parts of the first connector and the second connector are exposed out of the shielding box. The embodiment of the application can effectively reduce the electromagnetic radiation of the matcher, thereby improving the electromagnetic compatibility of the matcher. In addition, as the electronic element of the circuit board can adopt a patch element, the volume of the embodiment of the application can be effectively reduced.
Description
Technical Field
The application relates to the technical field of ultrasonic ablation, in particular to a matcher and an ultrasonic ablation device.
Background
Currently, an ultrasonic transducer is an energy conversion device that converts an alternating electrical signal into an acoustic signal in a frequency band range of ultrasonic waves. The ultrasonic transducer is provided with electric energy with certain frequency and power by a driving power supply. Generally, there is an impedance mismatch between the ultrasonic transducer and the driving power source, and the driving power source needs an optimal load to output the rated power. Therefore, a corresponding matching circuit needs to be designed according to the impedance characteristics of the ultrasonic transducer, the input end of the matching circuit is connected with the power amplifier in the driving power supply, and the output end of the matching circuit is connected with the ultrasonic transducer, so that the impedance of the ultrasonic transducer is converted into the optimal load of the driving power supply, the maximum output power of the ultrasonic transducer is realized, and meanwhile, the tuning is performed on the working frequency of the ultrasonic transducer, so that the heat loss of the ultrasonic transducer is minimized.
The matching device of the existing ultrasonic transducer has certain limitation in application, and the matching circuit of the common ultrasonic transducer adopts a large wound coil as an inductor to radiate and dissipate heat in the air. Therefore, the matcher in the prior art is large in size, low in heat dissipation efficiency, low in safety and capable of affecting the safety of the matcher, and has the problem of certain electromagnetic radiation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a matcher and ultrasonic ablation device to the shortcoming of current mode for there is the technical problem that the volume is great, the radiating efficiency is low and electromagnetic radiation is higher in the solution prior art.
In a first aspect, an embodiment of the present application provides a matcher, disposed between a driving power supply and an ultrasonic transducer, for changing a load impedance to match an impedance of the driving power supply and tuning an operating frequency of the ultrasonic transducer, including: the circuit board comprises a shielding box, a first connector, a second connector and a circuit board; the shielding box is internally provided with an accommodating cavity, the circuit board is arranged in the accommodating cavity, and at least part of electronic elements of the circuit board are patch elements; the first connector and the second connector are arranged on the circuit board, and the connecting parts of the first connector and the second connector are exposed out of the shielding box.
In an embodiment of the present application, the shielding box includes a box body and a cover body, the cover body is sleeved on one end of the box body and is matched with the box body to form the accommodating cavity.
In an embodiment of the application, the connecting portion of the first connector passes through the box and is fixedly connected to the box, and the connecting portion of the second connector passes through the cover and is fixedly connected to the cover.
In an embodiment of the application, the adapter further includes a fastening member, and the fastening member is respectively matched with the connecting portions of the first connector and the second connector to compress the box body and the cover body.
In an embodiment of the present application, the accommodating cavity is filled with a heat conducting medium.
In an embodiment of the present application, the heat conducting medium is a potting adhesive.
In an embodiment of the present application, the electronic component includes a chip inductor and a chip capacitor.
In an embodiment of the present application, the shielding box is a metal shielding box, and the shielding box is a cylindrical structure.
In an embodiment of the present application, the first connector and the second connector are both rf connectors.
In a second aspect, embodiments of the present application provide an ultrasonic ablation device including an adapter as provided in the first aspect.
The technical scheme provided by the embodiment of the application has the following beneficial technical effects:
the circuit board is arranged in the accommodating cavity of the shielding box, and only the connecting part is exposed out of the shielding box, so that the electromagnetic radiation of the matcher can be effectively reduced, and the safety of the matcher is improved. In addition, as the electronic element of the circuit board can adopt a patch element, the volume of the embodiment of the application can be effectively reduced, and the heat-conducting medium in the accommodating cavity can effectively improve the heat-radiating efficiency of the embodiment of the application, so that the safety and the service life of the embodiment of the application can be improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic cross-sectional view of an adapter provided in an embodiment of the present application;
fig. 2 is a schematic perspective view of a matcher provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a matching circuit of a matcher provided in an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
In a first aspect, an embodiment of the present application provides a matcher, disposed between a driving power supply and an ultrasonic transducer, for changing a load impedance to match an impedance of the driving power supply and tuning an operating frequency of the ultrasonic transducer, where a schematic structural diagram of the matcher is shown in fig. 1, and the matcher includes: a shield case 1, a circuit board 2, a first connector 3, and a second connector 4; the shielding box 1 is internally provided with an accommodating cavity 11, the circuit board 2 is arranged in the accommodating cavity 11, and at least part of electronic elements of the circuit board 2 are patch elements; the first connector 3 and the second connector 4 are both disposed on the circuit board 2, and the connection portions 5 of the first connector 3 and the second connector 4 are both exposed outside the shielding box 1.
As shown in fig. 1, the shielding box 1 may be made of a metal material, and its specific structure may be a cylindrical structure, for example. A closed accommodating cavity 11 may be formed inside the shielding box 1, the circuit board 2 may be disposed inside the accommodating cavity 11, and the circuit board 2 and the shielding box 1 may be connected by bonding or bolting, but the embodiment of the present application is not limited thereto. Part of electronic components on the circuit board 2 can adopt patch elements, so that the volume of the embodiment of the application can be effectively reduced. The heat-conducting medium in the accommodating cavity 11 can effectively improve the heat dissipation efficiency of the embodiment of the application. The first connector 3 and the second connector 4 can be disposed on the circuit board 2 and electrically connected to each electronic component of the circuit board 2, the first connector 3 can be electrically connected to a driving power source (not shown in the figure), and the second connector 4 can be electrically connected to an ultrasonic transducer (not shown in the figure); the connection portions 5 of the first connector 3 and the second connector 4 may both penetrate through the shielding box 1 and be exposed outside the shielding box 1, and only the connection portions 5 are exposed outside the shielding box 1, so that electromagnetic radiation in the embodiment of the present application may be effectively reduced, and electromagnetic compatibility of the matcher in the embodiment of the present application may be improved.
According to the embodiment of the application, the circuit board is arranged in the accommodating cavity of the shielding box, and only the connecting part is exposed out of the shielding box, so that the electromagnetic radiation of the matcher can be effectively reduced, and the electromagnetic compatibility of the matcher is improved. In addition, as the electronic element of the circuit board can adopt a patch element, the volume of the embodiment of the application can be effectively reduced, and the heat-conducting medium in the accommodating cavity 11 can effectively improve the heat-radiating efficiency of the embodiment of the application, so that the safety and the service life of the embodiment of the application can be improved.
It should be noted that the specific material and shape of the shielding box 1 are not limited in the implementation of the present application, for example, the shielding box 1 may be made of a square structure made of copper or aluminum, or made of other materials having an electromagnetic shielding effect. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust the settings according to actual situations.
In an embodiment of the present application, as shown in fig. 1 to 2, the shielding box 1 includes a box body 12 and a cover 13, wherein the cover 13 is disposed on an end of the box body 12 and cooperates with the box body 12 to form an accommodating cavity 11. The specific shape of the box 12 may be a cylindrical structure, one end of which may be a semi-closed structure, that is, the end may be provided with a through hole for the connection portion 5 of the first connector 3 to pass through, and the other end may be a completely open structure, and this design may facilitate the installation and use of the circuit board 2. The overall structure of the case 12 may be similar to the structure of the cover 13, and it may be partially sleeved on the case 12. By adopting the design, the shielding box 1 adopts a split type design, so that the structure of the embodiment of the application is simple, and the embodiment of the application is more convenient to disassemble and assemble.
It should be noted that the embodiment of the present application is not limited to the specific structure of the shielding box 1, and for example, the shielding box 1 may be formed by two semi-cylindrical structures. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust the settings according to actual situations.
In an embodiment of the present application, as shown in fig. 1 to 2, the connecting portion 5 of the first connector 3 passes through the box 12 and is fixedly connected to the box 12, and the connecting portion 5 of the second connector 4 passes through the cover 13 and is fixedly connected to the cover 13. The extending direction of the circuit board 2 may be arranged along the axial extension of the shield case 1. The first connector 3 and the second connector 4 may be respectively disposed at two ends of the circuit board 2, and the first connector 3 may penetrate through the box 12 and be fixedly connected to the box 12, for example, the two connectors may be fixedly connected by bonding; the second connector 4 can penetrate the cover 13 and be fixedly connected with the cover 13, and the connection mode can also be fixedly connected by adopting an adhesive mode. By adopting the above design, the circuit board 2, the box body 12 and the cover body 13 can be fixedly connected only through the first connector 3 and the second connector 4, so that the structure of the embodiment of the application is simple, and the disassembly and assembly efficiency of the application is effectively improved.
In the embodiment of the present application, the connection method of the first connector 3 and the second connector 4 to the shield case 1 is not limited, and for example, a welding method may be used. Therefore, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust the settings according to actual situations.
In an embodiment of the present application, as shown in fig. 1 and 2, the adaptor further includes a fastening member 6, and the fastening member 6 is respectively matched with the connecting portion 5 of the first connector 3 and the second connector 4 to press the box 12 and the cover 13. The fastening member 6 may be specifically a nut, and the fastening member 6 and the connecting portion 5 may be fixedly connected in a screw-fit manner, so that the first connector 3 and the box body 12 are fixedly connected, and the second connector 4 and the cover body 13 are fixedly connected. By adopting the design, the manufacturing cost of the embodiment of the application can be further reduced. However, the embodiment of the present application is not limited to this, for example, the fastening member 6 and the connecting portion 5 may also be fixedly connected in a snap-fit manner, and a person skilled in the art may adjust the setting according to actual situations.
In an embodiment of the present application, as shown in fig. 1 and fig. 2, the accommodating cavity 11 is filled with a heat conducting medium (not shown). Optionally, the heat conducting medium is a potting adhesive. After the circuit board 2 is installed in the box body 12, the accommodating cavity 11 may be filled with a heat conducting medium, after the heat conducting medium is solidified, the cover body 13 is covered on the cover body 13, and then the fastening member 6 is fixedly connected to the connecting portion 5 of the second connector 4. The heat-conducting medium can be pouring sealant, and not only can effectively improve the heat dissipation efficiency of the embodiment of the application, but also can play a role in fixing the circuit board. It should be noted that, the implementation of the present application is not limited to the specific material of the heat conducting medium, for example, the heat conducting medium may also be made of silicone grease, so that the embodiment of the present application is not limited thereto, and those skilled in the art can adjust the setting according to the actual situation.
In an embodiment of the present application, as shown in fig. 1 and fig. 2, the electronic components include a chip inductor 21 and a chip capacitor 22. Specifically, the circuit board 2 may include a plurality of chip inductors 21 and a plurality of chip capacitors 22, the connection between the chip inductors 21 and the chip capacitors 22 and the circuit board 2 may be performed by welding, and the accommodating cavity 11 is filled with a heat-conducting medium. By adopting the design, the volume of the embodiment of the application can be further reduced, and the heat dissipation efficiency of the embodiment of the application can be effectively improved.
In an embodiment of the present application, as shown in fig. 1 and 2, the first connector 3 and the second connector 4 are both rf connectors. The first connector 3 and the second connector 4 are radio frequency connectors, so that the manufacturing cost of the embodiment of the application can be effectively reduced. Specifically, the rf connector may be soldered to the circuit board 2, the threaded portion thereof may be the connecting portion 5 of the first connector 3 and the second connector 4, and the driving power source and the ultrasonic transducer may be provided with corresponding types of connectors for matching. It should be noted that, the embodiment of the present application does not limit the specific type of the rf connector and the connection manner with the circuit board 2, and those skilled in the art can adjust the setting according to actual situations.
In an embodiment of the present application, as shown in fig. 3, the matching circuit of the matcher specifically includes a first connector and a second connector disposed at the input end and the output end, and both the first connector and the second connector may adopt SMA radio frequency connectors. The matching circuit further comprises a plurality of inductors and a plurality of capacitors, wherein the inductors are connected in parallel, the plurality of inductors are all patch inductors, and the plurality of capacitors are all patch capacitors. The embodiments of the present application do not limit the specific implementation of the matching circuit, and those skilled in the art can adjust the matching circuit according to the ultrasound transducer.
In a second aspect, embodiments of the present application provide an ultrasonic ablation device including an adapter as provided in the first aspect.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
according to the embodiment of the application, the circuit board is arranged in the accommodating cavity of the shielding box, and only the connecting part is exposed out of the shielding box, so that the electromagnetic radiation of the matcher can be effectively reduced, and the electromagnetic compatibility of the matcher is improved. In addition, as the electronic element of the circuit board can adopt a patch element, the volume of the embodiment of the application can be effectively reduced, and the heat-conducting medium in the accommodating cavity can effectively improve the heat-radiating efficiency of the embodiment of the application, so that the safety and the service life of the embodiment of the application can be improved.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A matcher, set up between driving power and ultrasonic transducer, is used for changing the load impedance, make it match with impedance of the driving power, and tune on the operating frequency of the ultrasonic transducer, characterized by that, comprising: the circuit board comprises a shielding box, a first connector, a second connector and a circuit board;
the shielding box is internally provided with an accommodating cavity, the circuit board is arranged in the accommodating cavity, and at least part of electronic elements of the circuit board are patch elements; the first connector and the second connector are arranged on the circuit board, and the connecting parts of the first connector and the second connector are exposed out of the shielding box.
2. The adapter of claim 1, wherein the shielding box comprises a box body and a cover body, and the cover body is sleeved on one end of the box body and is matched with the box body to form the accommodating cavity.
3. The adapter of claim 2, wherein the connection portion of the first connector is fixedly connected to the case after passing through the case, and the connection portion of the second connector is fixedly connected to the cover after passing through the cover.
4. The adapter of claim 3, further comprising fasteners that mate with the connecting portions of the first and second connectors, respectively, to compress the case and the cover.
5. The matcher according to any one of claims 1 to 4, wherein the accommodating cavity is filled with a heat conducting medium.
6. The adapter of claim 5, wherein the heat conducting medium is a potting adhesive.
7. The matcher of claim 1, wherein the electronic components comprise a patch inductor and a patch capacitor.
8. The matcher of claim 1, wherein the shield box is a metal shield box, and the shield box is a cylindrical structure.
9. The matcher of claim 1, wherein the first connector and the second connector are both radio frequency connectors.
10. An ultrasonic ablation device comprising an adaptor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532771.XU CN211160543U (en) | 2019-09-16 | 2019-09-16 | Matcher and ultrasonic ablation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532771.XU CN211160543U (en) | 2019-09-16 | 2019-09-16 | Matcher and ultrasonic ablation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211160543U true CN211160543U (en) | 2020-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921532771.XU Active CN211160543U (en) | 2019-09-16 | 2019-09-16 | Matcher and ultrasonic ablation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211160543U (en) |
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2019
- 2019-09-16 CN CN201921532771.XU patent/CN211160543U/en active Active
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Address after: No. 359, jingdongfang Avenue, Beibei District, Chongqing 400714 Patentee after: Chongqing Haifu Medical Technology Co.,Ltd. Address before: 401121 No. 1 Pine Road, man Town, Chongqing, Yubei District Patentee before: Chongqing Haifu Medical Technology Co.,Ltd. |