Radio frequency power supply matcher

Abstract

The utility model discloses a radio frequency power supply matcher, comprising a cabinet, and an inductance module and a capacitance module arranged in the cabinet. The capacitor module comprises a motor and a capacitor, and the motor and the capacitor are clamped through a connecting column; a first water-cooling plate and a second water-cooling plate are respectively arranged at two ends of the capacitor, the first water-cooling plate is fixed on the case through an aluminum base, and the second water-cooling plate is fixed on a bearing surface of the case through an insulating base; the first water-cooling plate and the second water-cooling plate are respectively used for forming contact clamping connection with the capacitor, and one end, far away from the bearing surface of the case, of any water-cooling plate is also lapped with an inductor bracket. According to the utility model, the motor and the capacitor are rigidly connected through the coaxial connecting column, so that the problems of noise and motor stalling and jamming are solved; the water cooling plate is used for clamping the capacitor, heat dissipation, electric conduction and supporting are integrated, the heat dissipation efficiency is greatly improved, and the assembly time can be shortened.

Description

Technical Field

[0001] The utility model relates to the field of microwave radio frequency, and in particular to a radio frequency power supply matcher. Background Art

[0002] The current power supply matching devices are all made of motor-driven capacitors. The chassis and mounting plates are made of sheet metal. The processing and assembly accuracy are difficult to guarantee and difficult to adjust. As the industry's requirements for response speed, power and accuracy continue to increase, the disadvantages of this structure are also highlighted:

[0003] 1. Fast response speed requires fast motor speed, but due to the characteristics between motor speed and torque, the torque decreases as the speed increases. Since the motor and capacitor cannot achieve good coaxiality, the coupling slider will have a lot of friction when running at high speed, which will generate a lot of noise and even cause the motor to get stuck; 2. The motor and capacitor are fixed by sheet metal parts, and there will be gaps between the fixing holes and the assembly position, making it difficult to have a good matching position between the two after assembly; 3. High-power output capacitors will generate a lot of heat. The copper tube method only has one line of contact between the copper tube and the capacitor, and the heat dissipation efficiency is not high. Based on the above problems, the current RF power supply matcher has disadvantages in high power, fast response, and stability. Utility Model Content

[0004] In view of this, the utility model provides a radio frequency power supply matcher to solve the above problems.

[0005] In order to solve the above technical problems, the utility model provides a radio frequency power supply matcher, comprising:

[0006] A chassis, and an inductor module and a capacitor module disposed in the chassis;

[0007] The capacitor module includes a motor and a capacitor, and the motor and the capacitor are connected by a connecting column; a first water-cooling plate and a second water-cooling plate are respectively provided at both ends of the capacitor, the first water-cooling plate is fixed on the chassis through an aluminum base, and the second water-cooling plate is fixed on the bearing surface of the chassis through an insulating base;

[0008] The first water-cooling plate and the second water-cooling plate are respectively used to form contact and clamping connection with the capacitor, and an inductor bracket is also overlapped on one end of any water-cooling plate away from the bearing surface of the chassis.

[0009] As an optional manner, the inductor module includes an inductor and an anti-vibration bracket, and the anti-vibration bracket is fixed on the bearing surface of the chassis to bear the inductor.

[0010] As an optional method, the inductor bracket includes a connecting plate and an inductor bracket, which are vertically arranged; the connecting plate is overlapped on the first water-cooling plate and the second water-cooling plate, and the inductor bracket is fixed to one end of the connecting plate, and its setting direction is toward the direction of the inductor module.

[0011] As an optional method, the capacitor module includes a first capacitor module and a second capacitor module; the first capacitor module and the second capacitor module are respectively arranged on both sides of the inductor module, and are respectively provided with a first inductor bracket and a second inductor bracket; the inductor brackets of the first inductor bracket and the second inductor bracket are respectively located at both ends of the inductor module.

[0012] As an optional method, the end of the connecting plate of the first capacitor module away from the inductor bracket is connected to the input connecting plate; the end of the connecting plate of the second capacitor module away from the inductor bracket is connected to the output connecting plate; and the input connecting plate is connected to the input connector, and the output connecting plate is connected to the output connector.

[0013] As an optional manner, the chassis is provided with a main control board, which is arranged perpendicular to the bearing surface. The main control board includes a first surface and a second surface, and the inductance module and the capacitance module are arranged at one end close to the second surface.

[0014] As an optional method, the first surface is provided with a display screen assembly, a keypad assembly, a power supply, a potentiometer and a transmission mounting plate; and it is provided with a slot for allowing the motor of the capacitor module to extend out.

[0015] As an optional manner, a potentiometer gear is arranged on the second surface, and the potentiometer gear is meshed with the motor gear.

[0016] As an optional method, a partition is provided on a side of the main control board away from the bearing surface; two ends of the partition are mounted on the edge of the chassis.

[0017] As an option, a coupler is also provided on the edge of the chassis.

[0018] The beneficial effects of the utility model are:

[0019] The utility model ensures the rigid connection of the device between the motor and the capacitor through a coaxial connecting column, thereby solving the problems of noise and motor stalling; a water cooling plate is used to clamp the capacitor, integrating heat dissipation, conduction and support, greatly improving the heat dissipation efficiency and reducing assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a radio frequency matching device provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the first side structure of the main control board provided in an embodiment of the utility model;

[0022] Figure 3 A top view of a radio frequency matcher provided in an embodiment of the utility model.

[0023] Reference numerals and their corresponding relationships:

[0024] 1-chassis, 11-main control board, 12-display assembly, 13-keyboard assembly, 14-power supply, 15-potentiometer, 151-potentiometer gear, 16-motor, 161-motor gear, 162-transmission mounting plate, 17-partition, 21-capacitor, 22-water cooling plate, 23-insulating base, 24-aluminum base, 251-connecting plate, 252-inductor bracket, 26-insulating support, 27-connecting column, 31-inductor, 32-anti-vibration support, 4-coupler, 41-input connecting piece, 42-output connecting piece. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0026] Example

[0027] See also Figure 1-Figure 3 , this embodiment provides a radio frequency power supply 14 matcher, including: a chassis 1, and an inductor 31 module and a capacitor 21 module arranged in the chassis 1; the capacitor 21 module includes a motor 16 and a capacitor 21, and the motor 16 and the capacitor 21 are clamped by a connecting column 27; the two ends of the capacitor 21 are clamped by a water-cooled plate 22. In this embodiment, a first water-cooled plate and a second water-cooled plate are respectively provided, the first water-cooled plate is fixed on the chassis 1 through an aluminum base 24, and the second water-cooled plate is fixed on the bearing surface of the chassis 1 through an insulating base 23; the first water-cooled plate and the second water-cooled plate are respectively used to form a contact connection with the capacitor 21, and an inductor 31 bracket is also overlapped at one end of any water-cooled plate 22 away from the bearing surface of the chassis 1. In this way, the motor 16 and the capacitor 21 of this embodiment are rigidly connected by a connecting column 27, and the connecting column 27 can be selected as a high-strength insulating machined part, which has high strength and high processing accuracy while ensuring insulation. The coaxiality of the motor 16 and the capacitor 21 is well ensured, and the noise during rapid response and the problem of the motor 16 being stuck are solved. Optionally, the coupling and the capacitor 21 can be connected by a top screw + bolt to ensure the stability of the transmission.

[0028] In addition, the first water-cooled plate and the second water-cooled plate (whose structures are consistent and are not distinguished in this embodiment) are respectively arranged on both sides of the capacitor 21 to form a clamping fixation, integrating heat dissipation, conduction, and support, while reducing parts and components, greatly improving heat dissipation efficiency and reducing assembly time. Machined parts replace the plates in the prior art, ensuring high precision, and greatly reducing the time for assembly and adjustment. It should be noted that in this embodiment, the water-cooled plate 22 can be interchanged front and back, left and right, and used in conjunction with the aluminum base 24 and the insulating base 23. In addition, the aluminum base 24 and the insulating base 23 are interchangeable. By changing the position and number of the aluminum base 24 and the insulating base 23, the grounding of the two ends of the two capacitors 21 can be adjusted, so as to achieve the flexible use of the capacitors 21 in series and parallel.

[0029] As an optional method, the inductor 31 module includes an inductor 31 and an anti-vibration bracket, which is fixed on the bearing surface of the chassis 1 to support the inductor 31. An anti-vibration bracket of the inductor 31 made of high-strength insulating material is added to the bottom of the inductor 31, which is rigidly connected to the fixed points on each circle of the inductor 31 coil, and while isolating, the vibration of the inductor 31 caused by the vibration of the motor 16 is eliminated. In addition, the anti-vibration bracket and the insulating support 26 are made of high-strength insulating material, which fix the connecting plate 251 and play an insulating role. Through the mutual cooperation with the aluminum base 24, the insulating base 23 and the inductor hanger 252, the entire transmission line can be made flexible and changeable.

[0030] As an optional method, the inductor 31 bracket can be supported by the insulating support 26, which includes a connecting plate 251 and an inductor bracket 252, which are vertically arranged; the connecting plate 251 is overlapped on the first water-cooling plate and the second water-cooling plate, and the inductor bracket 252 is fixed to one end of the connecting plate 251, and its setting direction is toward the inductor 31 module. The material of the inductor 31 bracket can be selected from conductive oxide materials, and a thicker process is used to greatly reduce the vibration generated when the sheet metal is fixed while conducting electricity, while improving assembly accuracy and reducing adjustment time.

[0031] Please refer again Figure 1 , the capacitor 21 module includes a first capacitor 21 module and a second capacitor 21 module. In this embodiment, the first capacitor 21 module and the second capacitor 21 module are respectively arranged on both sides of the inductor 31 module, and the first capacitor 21 module is provided with one end of the coupler 4, and the other end is the second capacitor 21 module. It is respectively provided with a first inductor 31 bracket and a second inductor 31 bracket; the inductor hangers 252 of the first inductor 31 bracket and the second inductor 31 bracket are respectively located at the two ends of the inductor 31 module. Please refer again Figure 1 The connection plate 251 is provided with spare inductor bracket 252 mounting holes, the spacing of which is the pitch of the inductor 31 coil. By installing the inductor 31 bracket at different positions and adjusting the number of energized turns of the inductor 31, the amount of the inductor 31 can be adjusted.

[0032] As an optional method, the end of the connecting plate 251 of the first capacitor 21 module away from the inductor bracket 252 is connected to the input connecting plate 41; the end of the connecting plate 251 of the second capacitor 21 module away from the inductor bracket 252 is connected to the output connecting plate 42; and the input connecting plate 41 is connected to the input connector, and the output connecting plate 42 is connected to the output connector.

[0033] As an optional manner, the chassis 1 is provided with a main control board 11, which is arranged perpendicular to the bearing surface. The main control board 11 includes a first surface and a second surface, and the inductor 31 module and the capacitor 21 module are arranged at one end close to the second surface.

[0034] As an optional method, the first surface is provided with a display screen assembly 12, a keypad assembly 13, a power supply 14, a potentiometer 15 and a transmission mounting plate 162; and it is provided with a slot for allowing the motor 16 of the capacitor 21 module to extend out.

[0035] As an optional manner, a potentiometer gear 151 is provided on the second surface, and the potentiometer gear 151 is meshed with the motor gear 161 .

[0036] As an optional method, a partition 17 is provided on one side of the main control board 11 away from the bearing surface; both ends of the partition 17 are mounted on the edge of the chassis 1. The motor 16 and the partition 17 are installed at a position where they are sealed and shielded by a transmission mounting plate 162.

[0037] As an optional method, a coupler 4 is also provided on the edge of the chassis 1. Figure 3 The input connector and monitoring connector of the coupler 4 are tightly assembled with the chassis 1 and the partition 17 to prevent the leakage of the RF signal here and play a shielding role.

[0038] In addition, honeycomb waveguides are used for shielding at each vent in the RF area, which does not affect heat dissipation. In this embodiment, the motor 16 and the capacitor 21 are rigidly connected by a coaxiality guarantee device to solve the problems of noise and motor 16 jamming. It is also possible to achieve a unified assembly effect and eliminate the problem of differences in assembly adjustment techniques. The RF signal area and the control area can optionally add shielding covers and shielding designs at each joint to improve output efficiency, shorten assembly time, and shorten adjustment and testing time. Add an inductive anti-vibration bracket to ensure transmission accuracy and stability. It also solves the heat dissipation effect and meets high power requirements.

[0039] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A radio frequency power supply matching device, characterized in that: include: A chassis, and an inductor module and a capacitor module arranged in the chassis; The capacitor module includes a motor and a capacitor, and the motor and the capacitor are clamped together through a connecting column; a first water-cooling plate and a second water-cooling plate are respectively provided at both ends of the capacitor, the first water-cooling plate is fixed to the chassis through an aluminum base, and the second water-cooling plate is fixed to the bearing surface of the chassis through an insulating base; The first water-cooling plate and the second water-cooling plate are respectively used to form contact and clamping connection with the capacitor, and an inductor bracket is also overlapped on one end of any of the water-cooling plates away from the chassis bearing surface.

2. A radio frequency power supply matching device according to claim 1, characterized in that: The inductor module includes an inductor and an anti-vibration bracket, and the anti-vibration bracket is fixed on the bearing surface of the chassis to bear the inductor.

3. A radio frequency power supply matching device according to claim 1, characterized in that: The inductor bracket includes a connecting plate and an inductor bracket, which are vertically arranged; the connecting plate is overlapped on the first water-cooling plate and the second water-cooling plate, and the inductor bracket is fixed to one end of the connecting plate, and its setting direction is toward the direction of the inductor module.

4. A radio frequency power supply matching device according to claim 3, characterized in that: The capacitor module includes a first capacitor module and a second capacitor module; the first capacitor module and the second capacitor module are respectively arranged on both sides of the inductor module, and are respectively provided with a first inductor bracket and a second inductor bracket; the inductor brackets of the first inductor bracket and the second inductor bracket are respectively located at both ends of the inductor module.

5. A radio frequency power supply matching device according to claim 4, characterized in that: One end of the connection plate of the first capacitor module away from the inductor rack is connected to an input connection plate; one end of the connection plate of the second capacitor module away from the inductor rack is connected to an output connection plate; and the input connection plate is connected to an input connector, and the output connection plate is connected to an output connector.

6. The RF power supply matching device according to claim 1, characterized in that: The chassis is provided with a main control board, the main control board is arranged perpendicularly to the bearing surface, the main control board includes a first surface and a second surface, and the inductance module and the capacitance module are arranged at an end close to the second surface.

7. A radio frequency power supply matching device according to claim 6, characterized in that: The first surface is provided with a display screen assembly, a keypad assembly, a power supply, a potentiometer and a transmission mounting plate; and is provided with a slot for allowing the motor of the capacitor module to extend out.

8. The radio frequency power supply matching device according to claim 6, characterized in that: A potentiometer gear is disposed on the second surface, and the potentiometer gear is meshed with the motor gear.

9. The radio frequency power supply matching device according to claim 6, characterized in that: A partition is arranged on one side of the main control board away from the bearing surface; two ends of the partition are mounted on the edge of the chassis.

10. The radio frequency power supply matching device according to claim 1, characterized in that: A coupler is also arranged on the edge of the chassis.

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