CN219307747U

CN219307747U - Petal type cavity radiator

Info

Publication number: CN219307747U
Application number: CN202222854013.8U
Authority: CN
Inventors: 闫树伟; 周立波; 徐鑫芬; 王芳; 王鑫岩
Original assignee: Dalian Auretech Technology Co ltd
Current assignee: Dalian Auretech Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-07-07
Anticipated expiration: 2032-10-28

Abstract

The petal type cavity radiator comprises an inner conductor, an outer conductor and a shell, wherein the lower end of the inner conductor is connected with a radio frequency connector, an insulator is arranged on the outer side of the inner conductor, the lower end of the insulator is connected with the radio frequency connector, and a protruding section is arranged on the upper portion of the insulator; the outer conductor is arranged on the outer side of the insulator, the upper part of the outer conductor is provided with outer conductor long flaps and outer conductor short flaps which are distributed in a staggered way and protrude outwards, and the protruding section of the inner conductor is matched with a space structure formed by the outer conductor long flaps and the outer conductor short flaps of the outer conductor; the outer side of the outer conductor is provided with a shell. The petal-type cavity radiator has the advantages that the diameter of the upper part of the outer conductor is increased, reflection is reduced, heating efficiency is improved, and due to the adoption of petal-type staggered resonance output, a thermal field is more uniform, front-end radiation can be realized, and the treatment effect and the application range are effectively improved; the outer conductor adopts petal-type coupling output, has small diameter, light weight and convenient operation and use.

Description

Petal type cavity radiator

Technical Field

The present utility model relates to the field of medical devices.

Background

Tumor hyperthermia is to raise the temperature of whole body or tumor tissue (local) by various methods, treat malignant tumor by using heat effect and its secondary effect, is the fifth major therapy after surgery, radiotherapy, chemotherapy and immunotherapy, and is a green treatment means.

Tumor hyperthermia based on modern science was active at the beginning of the 60 s of the 20 th century and made a number of breakthrough advances. A large amount of in vitro experiments and clinical data show that although the tumor hyperthermia can not replace surgery, chemotherapy or radiotherapy as an independent tumor treatment scheme, the tumor hyperthermia has obvious synergy and supplement effects on tumor treatment means such as chemotherapy, radiotherapy and surgery. Because of this, tumor hyperthermia has developed rapidly in recent years, and is yet another important tumor treatment means following surgery, radiotherapy, chemotherapy and biological treatment.

As shown in figure 1, an outer conductor 6 is arranged in an insulator 2, an inner conductor 9 is arranged in the outer conductor 6, a short-circuit sheet 16 is arranged between the outer conductor 6 and the inner conductor 9, a 1/4 wavelength radiation hole 15 is longitudinally formed in the outer conductor 6, a shell 10 is arranged outside the outer conductor, the cavity radiator adopts a radio frequency connector with the diameter of 26mm, a 26mm outer conductor and 1/4 wavelength slot type coupling output is adopted, the inner conductor and the outer conductor are short-circuited, and radiation is realized by utilizing the microwave transmission characteristic of 1/4 short-circuit equivalent open circuit. The radiator has a large volume and an insulation diameter of more than 30mm outside the house. The weight is large, the radio frequency connector 1 is large, and the cable is thick and hard, so that the operation and the use are inconvenient; the front end is free from radiation because of short-circuit connection of the inner conductor and the outer conductor, so that the treatment range is limited; the surrounding thermal field is not uniform due to the gap output.

Disclosure of Invention

In order to solve the problems of the conventional cavity radiator, the utility model provides a petal-type cavity radiator.

The technical scheme adopted by the utility model for achieving the purpose is as follows: the petal-type cavity radiator comprises an inner conductor 9, an outer conductor 6 and a shell 10, wherein the lower end of the inner conductor 9 is connected with a radio frequency connector 1, an insulator 2 is arranged on the outer side of the inner conductor 9, the lower end of the insulator 2 is connected with the radio frequency connector 1, and a protruding section is arranged on the upper portion of the insulator 2; the outer conductor 6 is arranged on the outer side of the insulator 2, the upper part of the outer conductor 6 is provided with outer conductor long flaps 8 and outer conductor short flaps 7 which are distributed in a staggered way and protrude outwards, and the protruding section of the inner conductor 9 is matched with the space structure formed by the outer conductor long flaps 8 and the outer conductor short flaps 7 of the outer conductor 6; the outer conductor 6 is provided with a housing 10 on the outside.

The inner conductor 9 in the convex section of the insulator 2 is an inner conductor spiral vibrator 3 with a spiral structure.

The lower end of the insulator 2 is fixedly connected with the radio frequency connector 1, the outer side of the lower end of the insulator 2 is provided with a connecting thread 4, and the lower end of the outer conductor 6 is in threaded connection with the insulator 2; the outer side of the lower end of the outer conductor 6 is provided with a shell fixing thread 5, and the lower end of the shell 10 is connected with the outer conductor 6 through threads.

The outer conductor 6 further comprises an upper outer conductor long lobe 12 and an upper outer conductor short lobe 11, the upper ends of the arc-shaped upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are fixedly connected, the upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are mounted on the upper portion of the protruding section of the inner conductor 9, the upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are mounted in staggered insertion mode with a lower outer conductor long lobe 13 and a lower outer conductor short lobe 14 of the outer conductor 6, and the upper outer conductor long lobe 12, the upper outer conductor short lobe 11, the lower outer conductor long lobe 13 and the lower outer conductor short lobe 14 are fixed on the protruding section of the insulator 2 through screws.

The petal-type cavity radiator has the advantages that the diameter of the upper part of the outer conductor is increased, reflection is reduced, heating efficiency is improved, and due to the adoption of petal-type staggered resonance output, a thermal field is more uniform, front-end radiation can be realized, and the treatment effect and the application range are effectively improved; the outer conductor adopts petal-type coupling output, has small diameter, light weight and convenient operation and use.

Drawings

Fig. 1 is a block diagram of a conventional cavity radiator.

Fig. 2 is a diagram of the inner conductor structure of a petal-type cavity radiator according to an embodiment of the present utility model.

Fig. 3 is a diagram of the outer conductor structure of a petal-type cavity radiator according to an embodiment of the present utility model.

Fig. 4 is a block diagram of a petal type cavity radiator housing according to an embodiment of the present utility model.

Fig. 5 is an overall construction diagram of a petal-type cavity radiator according to an embodiment of the present utility model.

Fig. 6 is a diagram of the inner conductor structure of a two-petal type cavity radiator according to an embodiment of the present utility model.

Fig. 7 is a diagram of the outer conductor structure of a two-petal type cavity radiator according to an embodiment of the present utility model.

Fig. 8 is an overall structure diagram of a two-petal type cavity radiator according to an embodiment of the present utility model.

In the figure: 1. the radio frequency connector comprises a radio frequency connector body 2, an insulator 3, an inner conductor spiral oscillator 4, a connecting thread 5, a shell fixing thread 6, an outer conductor 7, an outer conductor short lobe 8, an outer conductor long lobe 9, an inner conductor 10, a shell 11, an upper outer conductor short lobe 12, an upper outer conductor long lobe 13, a lower outer conductor long lobe 14, a lower outer conductor short lobe 15, a 1/4 wavelength radiation hole 16 and a short-circuit sheet.

Detailed Description

The first embodiment is shown in fig. 2-5, and the petal-shaped cavity radiator comprises an inner conductor 9, an outer conductor 6 and a shell 10, wherein the lower end of the inner conductor 9 is connected with a radio frequency connector 1, an insulator 2 is arranged on the outer side of the inner conductor 9, the lower end of the insulator 2 is connected with the radio frequency connector 1, a protruding section is arranged on the upper part of the insulator 2, and the inner conductor 9 in the protruding section of the insulator 2 is an inner conductor spiral oscillator 3 with a spiral structure; the outer conductor 6 is arranged outside the insulator 2, the connecting screw thread 4 is arranged outside the lower end of the insulator 2, the lower end of the outer conductor 6 is in screw thread connection with the insulator 2, the upper part of the outer conductor 6 is provided with outer conductor long flaps 8 and outer conductor short flaps 7 which are distributed in a staggered way and protrude outwards, the protruding sections of the inner conductor 9 are matched with the space structures formed by the outer conductor long flaps 8 and the outer conductor short flaps 7 of the outer conductor 6, and the outer conductor long flaps 8 and the outer conductor short flaps 7 are fixed on the protruding sections of the insulator 2 through screws; the outer side of the outer conductor 6 is provided with a shell 10, the outer side of the lower end of the outer conductor 6 is provided with a shell fixing thread 5, and the lower end of the shell 10 is in threaded connection with the outer conductor 6. The portion of the inner conductor 9 located in the convex section of the insulator 2 is spiral, improving the heat radiation. The inner conductor 9 and the petal-shaped outer conductor 6 of the radiator form staggered coupling output, electromagnetic waves are resonated and output, the diameters of the upper parts of the outer conductor 6 and the inner conductor 9 are increased, the refraction is reduced by microwave impedance transformation, radiation signals are transitionally radiated from a coaxial line to the air, and the heat treatment of focus positions is realized. The front-end heating radiation is realized, and the radiation heat is more uniform.

In the second embodiment, as shown in fig. 6-8, the petal-type cavity radiator comprises an inner conductor 9, an outer conductor 6 and a shell 10, wherein the lower end of the inner conductor 9 is connected with a radio frequency connector 1, an insulator 2 is arranged on the outer side of the inner conductor 9, the lower end of the insulator 2 is connected with the radio frequency connector 1, and a protruding section is arranged on the upper portion of the insulator 2; the outer conductor 6 is arranged outside the insulator 2, the connecting screw thread 4 is arranged outside the lower end of the insulator 2, the lower end of the outer conductor 6 is in screw thread connection with the insulator 2, the outer conductor 6 comprises an upper outer conductor long lobe 12 and an upper outer conductor short lobe 11, the upper ends of the arc-shaped upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are fixedly connected, the upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are arranged on the upper part of a convex section of the inner conductor 9, the upper outer conductor long lobe 12 and the upper outer conductor short lobe 11 are arranged in staggered insertion mode with a lower outer conductor long lobe 13 and a lower outer conductor short lobe 14 of the outer conductor 6, and the upper outer conductor long lobe 12, the upper outer conductor short lobe 11, the lower outer conductor long lobe 13 and the lower outer conductor short lobe 14 are fixed on the convex section of the insulator 2 through screws; the outer side of the outer conductor 6 is provided with a shell 10, the outer side of the lower end of the outer conductor 6 is provided with a shell fixing thread 5, the lower end of the shell 10 is connected with the outer conductor 6 through threads, and the shell is the same as the first embodiment. The inner conductor 9 and the petal-shaped outer conductor 6 of the radiator form staggered coupling output, electromagnetic waves are resonated and output, the diameters of the upper parts of the outer conductor 6 and the inner conductor 9 are increased, the refraction is reduced by microwave impedance transformation, radiation signals are transitionally radiated into the air from a coaxial line, and the focus part is uniformly heated. The inner conductor 9 and the outer conductor 6 are made of red copper or red copper silver plating materials.

The cavity radiator adopts a 16mm microwave connector, adopts a 10mm outer conductor and 18mm staggered petal type coupling output, the diameter of the insulator 2 is as small as 22mm, the weight is reduced by 2/3, and the diameter of the inner conductor (radio frequency cable) is reduced from 13mm to 5mm, so that great convenience is brought to use. The petal type radiator has the advantages that the upper part and the lower part of the radius are replaced by the outer part of the petal type radiator, reflection is reduced, emission efficiency is improved, and due to the adoption of petal type staggered resonance output, 1/4 wavelength of an inner conductor is inserted into an outer conductor 6, so that a thermal field is very uniform, front-end radiation can be realized, and the treatment effect and the application range are effectively improved.

The present utility model has been described in terms of embodiments, and it will be appreciated by those of skill in the art that various changes can be made to the features and embodiments, or equivalents can be substituted, without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A petal type cavity radiator, which is characterized in that: the high-voltage power supply comprises an inner conductor (9), an outer conductor (6) and a shell (10), wherein the lower end of the inner conductor (9) is connected with a radio frequency connector (1), an insulator (2) is arranged on the outer side of the inner conductor (9), the lower end of the insulator (2) is connected with the radio frequency connector (1), and a protruding section is arranged on the upper portion of the insulator (2); the outer conductor (6) is arranged on the outer side of the insulator (2), the upper part of the outer conductor (6) is provided with outer conductor long flaps (8) and outer conductor short flaps (7) which are distributed in a staggered way and protrude outwards, and the protruding section of the inner conductor (9) is matched with a space structure formed by the outer conductor long flaps (8) and the outer conductor short flaps (7) of the outer conductor (6); the outer side of the outer conductor (6) is provided with a shell (10).

2. A petal type cavity radiator according to claim 1, wherein: the inner conductor (9) in the convex section of the insulator (2) is an inner conductor spiral vibrator (3) with a spiral structure.

3. A petal type cavity radiator according to claim 1, wherein: the lower end of the insulator (2) is fixedly connected with the radio frequency connector (1), the outer side of the lower end of the insulator (2) is provided with a connecting thread (4), and the lower end of the outer conductor (6) is in threaded connection with the insulator (2); the outer side of the lower end of the outer conductor (6) is provided with a shell fixing thread (5), and the lower end of the shell (10) is in threaded connection with the outer conductor (6).

4. A petal type cavity radiator according to claim 1, wherein: the outer conductor (6) further comprises an upper outer conductor long lobe (12) and an upper outer conductor short lobe (11), the upper outer conductor long lobe (12) and the upper outer conductor short lobe (11) are fixedly connected, the upper outer conductor long lobe (12) and the upper outer conductor short lobe (11) are mounted on the upper portion of the protruding section of the inner conductor (9), the upper outer conductor long lobe (12) and the upper outer conductor short lobe (11) are mounted in staggered insertion mode with the lower outer conductor long lobe (13) and the lower outer conductor short lobe (14) of the outer conductor (6), and the upper outer conductor long lobe (12), the upper outer conductor short lobe (11), the lower outer conductor long lobe (13) and the lower outer conductor short lobe (14) are fixed on the protruding section of the insulator (2) through screws.