Radio frequency matcher assembling structure

Abstract

The utility model discloses a radio frequency matcher assembling structure which comprises a radio frequency matcher shell and an inductor installed in the radio frequency matcher shell, a detachable capacitor is further installed in the radio frequency matcher shell, and the capacitor is fixedly installed in the radio frequency matcher shell through a capacitor installation assembly. One side of the radio frequency matcher shell is provided with a heat dissipation mechanism used for heat dissipation in the radio frequency matcher shell, the other side of the radio frequency matcher shell is provided with a dustproof net, and the capacitor installation assembly comprises a concave installation seat fixedly connected to the inner wall of the radio frequency matcher shell. According to the utility model, not only is the capacitor convenient to disassemble and maintain when the capacitor is damaged through the arrangement of the capacitor which is clamped and fixed, but also the air flow in the radio frequency matcher shell is increased through the arrangement of the heat dissipation mechanism, so that the heat dissipation effect in the radio frequency matcher shell is improved, and the service life of the radio frequency matcher shell is prolonged. Therefore, the stable operation of the radio frequency matcher is ensured.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency power supply technology, and in particular to an assembly structure for a radio frequency matching device. Background Technology

[0002] An RF matching circuit is used to match the load impedance and the power supply impedance in order to reduce reflected power and maximize transmission power. RF matching circuits come in three forms: π-type, T-type, and L-type. During load matching, the circuit form needs to be adjusted according to the actual requirements.

[0003] For example, Chinese Patent Publication No. CN222215706U discloses an RF matching device, which includes an RF input terminal, an RF output terminal, a first variable capacitor and a second variable capacitor, and an adjustable inductor with taps. The RF input terminal is electrically connected to the taps of the adjustable inductor. One end of the adjustable inductor is electrically connected to the first variable capacitor and connected to the housing through the first variable capacitor. The other end is sequentially electrically connected to the second variable capacitor and the RF output terminal.

[0004] Although the above technical solutions have solved the corresponding technical problems, they still have the following drawbacks:

[0005] The RF matching device of the above technical solution is not convenient for disassembling and assembling the capacitors, making it inconvenient for maintenance. At the same time, the heat dissipation effect of the RF matching device of the above technical solution is poor, which affects the stable operation of the RF matching device. Utility Model Content

[0006] The purpose of this utility model is to provide an assembly structure for an RF matching unit. This structure not only facilitates the disassembly and maintenance of the capacitor when it is damaged by setting up a snap-fit ​​capacitor, but also increases the airflow inside the RF matching unit housing by setting up a heat dissipation mechanism, thereby improving the heat dissipation effect inside the RF matching unit housing and ensuring the stable operation of the RF matching unit.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] An RF matching unit assembly structure includes:

[0009] The RF matching unit includes a housing and an inductor installed inside the housing. A removable capacitor is also installed inside the housing and is fixedly installed inside the housing via a capacitor mounting assembly. A heat dissipation mechanism for heat dissipation inside the housing is installed on one side of the housing, and a dustproof mesh is provided on the other side of the housing.

[0010] In the above-mentioned RF matching unit assembly structure, the capacitor mounting assembly includes a concave mounting base fixedly connected to the inner wall of the RF matching unit housing, and elastic snap-fit ​​components for fixing the capacitor are provided on both sides of the inner wall of the concave mounting base.

[0011] In the above-mentioned RF matching device assembly structure, the elastic snap-fit ​​component includes a receiving groove fixedly opened on the concave mounting base. Two symmetrically arranged connecting springs are fixedly connected to the inner wall of the receiving groove. Sliding rods are fixedly connected to the ends of the two connecting springs. Sliding blocks for fixing the capacitor are fixedly connected to the sides of the sliding rods, and the sliding blocks are slidably connected to the concave mounting base.

[0012] In the above-mentioned RF matching device assembly structure, the top and bottom of the sliding rod are fixedly connected to limit sliders, and the inner wall of the receiving groove is provided with a limit groove that matches the limit slider at the position corresponding to the limit slider.

[0013] In the above-mentioned RF matching unit assembly structure, the heat dissipation mechanism includes a sealing shell fixedly connected to the side of the RF matching unit housing, a sealing piston plate slidably connected to the inner wall of the sealing shell, an elastic telescopic component provided at the bottom of the sealing piston plate, a driving component provided at the top of the sealing piston plate, an anti-backflow component one installed on the top of one side of the sealing shell, and an anti-backflow component two installed on the top of the other side of the sealing shell.

[0014] In the above-mentioned RF matching device assembly structure, the elastic telescopic component includes a mounting shell fixedly connected to the bottom of the inner wall of the sealing shell, a telescopic spring fixedly connected to the bottom of the inner wall of the mounting shell, a connecting slider fixedly connected to the top of the telescopic spring, a connecting slide rod fixedly connected to the top of the connecting slider, and the top of the connecting slide rod fixedly connected to the bottom of the sealing piston plate.

[0015] In the above-mentioned RF matching unit assembly structure, the drive component includes a servo motor fixedly connected to the side of the sealing shell, and a cam is fixedly connected to the output shaft of the servo motor at a position corresponding to the sealing piston plate.

[0016] In the above-mentioned RF matching device assembly structure, the anti-backflow component includes a channel fixedly installed on the sealing shell. An installation rod is fixedly connected to the inner wall of the channel. Two sealing slide rods are slidably connected to the installation rod. The ends of the sealing slide rods are fixedly connected by sealing gaskets. An annular sealing plate matching the sealing gasket is fixedly connected to the inner wall of the channel at a position corresponding to the sealing gasket. A sleeve spring is sleeved on the sealing slide rod located between the sealing gasket and the installation rod.

[0017] This utility model has at least the following beneficial effects:

[0018] This invention implements an RF matching unit assembly structure. It not only facilitates the disassembly and maintenance of capacitors when they are damaged by setting up a snap-fit ​​fixed capacitor, but also increases the airflow inside the RF matching unit housing by setting up a heat dissipation mechanism, thereby improving the heat dissipation effect inside the RF matching unit housing and ensuring the stable operation of the RF matching unit. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the assembly structure of the radio frequency matching device of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the radio frequency matching device assembly structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the capacitor mounting assembly in the RF matching device assembly structure of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the capacitor mounting assembly in the radio frequency matching device assembly structure of this utility model;

[0024] Figure 5 This utility model Figure 4 A magnified schematic diagram of the local structure at point A;

[0025] Figure 6 This is a schematic diagram of the heat dissipation mechanism in the RF matching unit assembly structure of this utility model;

[0026] Figure 7 This is a schematic diagram of the elastic telescopic component in the RF matching device assembly structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the anti-reverse current component one in the RF matching device assembly structure of this utility model.

[0028] Explanation of icon numbers:

[0029] 1. RF matching unit housing; 2. Inductor; 3. Capacitor; 4. Heat dissipation mechanism; 5. Dust filter;

[0030] 301. Capacitor mounting assembly; 3011. Recessed mounting base; 3012. Flexible snap-fit ​​assembly;

[0031] 30121, receiving groove; 30122, connecting spring; 30123, sliding rod; 30124, sliding block; 30125, limiting slider; 30126, limiting groove;

[0032] 401. Sealing shell; 402. Sealing piston plate; 403. Elastic telescopic assembly; 404. Drive assembly; 405. Anti-backflow assembly one; 406. Anti-backflow assembly two;

[0033] 4031. Mounting housing; 4032. Telescopic spring; 4033. Connecting slider; 4034. Connecting slide rod;

[0034] 4041, Servo motor; 4042, Cam;

[0035] 4051, Channel; 4052, Mounting rod; 4053, Sealing slide bar; 4054, Sealing gasket; 4055, Annular sealing plate; 4056, Spring sleeve. Detailed Implementation

[0036] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0037] Please refer to Figures 1 to 8 As shown, an embodiment of the present invention provides an RF matching unit assembly structure, including: an RF matching unit housing 1 and an inductor 2 installed inside the RF matching unit housing 1. A detachable capacitor 3 is also installed inside the RF matching unit housing 1, and the capacitor 3 is fixedly installed inside the RF matching unit housing 1 by a capacitor mounting assembly 301. A heat dissipation mechanism 4 for heat dissipation inside the RF matching unit housing 1 is installed on one side of the RF matching unit housing 1, and a dustproof mesh 5 is provided on the other side of the RF matching unit housing 1.

[0038] By adopting the above technical solution, not only is it convenient to disassemble and maintain the capacitor 3 when it is damaged by setting up the fixed capacitor 3, but also the air flow inside the RF matching unit housing 1 is increased by setting up the heat dissipation mechanism 4, thereby improving the heat dissipation effect inside the RF matching unit housing 1 and ensuring the stable operation of the RF matching unit.

[0039] Please refer to Figures 1 to 8 As shown, the capacitor mounting assembly 301 includes a concave mounting base 3011 fixedly connected to the inner wall of the RF matching unit housing 1, and elastic snap-fit ​​assemblies 3012 for fixing the capacitor 3 are provided on both sides of the inner wall of the concave mounting base 3011.

[0040] The elastic snap-fit ​​assembly 3012 includes a receiving groove 30121 fixedly formed on the concave mounting base 3011. Two symmetrically arranged connecting springs 30122 are fixedly connected to the inner wall of the receiving groove 30121. A sliding rod 30123 is fixedly connected to the end of the two connecting springs 30122. A sliding block 30124 for fixing the capacitor 3 is fixedly connected to the side of the sliding rod 30123. The sliding block 30124 is slidably connected to the concave mounting base 3011. By setting the slidable sliding block 30124, the capacitor 3 set inside the concave mounting base 3011 can be well snapped and limited, thereby improving the convenience of snapping and fixing the capacitor 3.

[0041] Please refer to Figures 1 to 8 As shown, the top and bottom of the sliding rod 30123 are fixedly connected to the limiting slider 30125. The inner wall of the receiving groove 30121 is provided with a limiting groove 30126 that matches the limiting slider 30125. By setting the limiting slider 30125 and the limiting groove 30126, the sliding rod 30123 is limited, thereby increasing the stability of the sliding rod 30123 driving the sliding block 30124 to fix the capacitor 3.

[0042] Please refer to Figures 1 to 8 As shown, the heat dissipation mechanism 4 includes a sealing shell 401 fixedly connected to the side of the RF matching unit housing 1. A sealing piston plate 402 is slidably connected to the inner wall of the sealing shell 401. An elastic telescopic component 403 is provided at the bottom of the sealing piston plate 402, and a driving component 404 is provided at the top of the sealing piston plate 402. An anti-backflow component 1 405 is installed on the top of one side of the sealing shell 401, and an anti-backflow component 2 406 is installed on the top of the other side of the sealing shell 401. The elastic telescopic component 403 drives the sealing piston plate 402 to move back and forth. When the sealing piston plate 402 moves downward, the anti-backflow component 1 405 can draw in hot air from inside the RF matching unit housing 1. When the sealing piston plate 402 moves upward, the anti-backflow component 2 406 can expel the hot air drawn in from inside the sealing shell 401, thereby improving the airflow inside the RF matching unit housing 1.

[0043] Please refer to Figures 1 to 8As shown, the elastic telescopic assembly 403 includes a mounting shell 4031 fixedly connected to the bottom of the inner wall of the sealing shell 401. A telescopic spring 4032 is fixedly connected to the bottom of the inner wall of the mounting shell 4031. A connecting slider 4033 is fixedly connected to the top of the telescopic spring 4032. A connecting rod 4034 is fixedly connected to the top of the connecting slider 4033. The top of the connecting rod 4034 is fixedly connected to the bottom of the sealing piston plate 402. By setting the elastic telescopic assembly 403, the sealing piston plate 402 can be driven to return to its original position under the elastic force of the telescopic spring 4032, thereby facilitating the reciprocating movement of the sealing piston plate 402.

[0044] The drive assembly 404 includes a servo motor 4041 fixedly connected to the side of the sealing shell 401. A cam 4042 is fixedly connected to the output shaft of the servo motor 4041 at a position corresponding to the sealing piston plate 402. The servo motor 4041 drives the cam 4042 to rotate, thereby causing the cam 4042 to press the sealing piston plate 402 with different radii. Under the elastic force of the telescopic spring 4032, the sealing piston plate 402 moves back and forth continuously.

[0045] Please refer to Figures 1 to 8 As shown, the anti-backflow component 405 includes a channel 4051 fixedly installed on a sealing shell 401. An installation rod 4052 is fixedly connected to the inner wall of the channel 4051. Two sealing slide rods 4053 are slidably connected to the installation rod 4052. The ends of the sealing slide rods 4053 are fixedly connected via sealing gaskets 4054. An annular sealing plate 4055, matching the sealing gasket 4054, is fixedly connected to the inner wall of the channel 4051 at a position corresponding to the sealing gasket 4054. A spring 4056 is sleeved on the sealing slide rod 4053 located between the sealing gasket 4054 and the installation rod 4052. By setting the anti-backflow component 405... When hot air inside the RF matching unit housing 1 is drawn into the sealing shell 401 through the channel 4051, it will compress the sealing gasket 4054 and cause the sealing gasket 4054 to detach from the annular sealing plate 4055, thus ensuring that the hot air inside the RF matching unit housing 1 is normally drawn into the sealing shell 401. When the hot air inside the sealing shell 401 is discharged through the anti-backflow component 2 406, it will compress the sealing gasket 4054 on the anti-backflow component 2 406 and cause the hot air inside the sealing shell 401 to be smoothly discharged through the channel 4051. This process repeats to achieve airflow inside the RF matching unit housing 1.

[0046] The working principle of this utility model is as follows: Not only is the capacitor 3 fixed by a snap-fit ​​mechanism, but when the capacitor 3 is damaged, simply moving the sliding block 30124 disengages it from the capacitor 3, allowing for easy disassembly and maintenance. During installation, the capacitor 3 is pressed against the concave mounting base 3011, causing it to press against the inclined surface of the sliding block 30124, which retracts into the receiving groove 30121. When the capacitor 3 moves past the sliding block 30124, the connecting spring 30122 causes the sliding block 30124 to snap onto the capacitor 3, enabling convenient positioning. Furthermore, by incorporating a heat dissipation mechanism 4, the servo motor 4041 drives the cam 4042 to rotate, allowing the cam 4042 to press against the sealing piston plate 402 at different radii, thus facilitating heat dissipation during telescopic operation. Under the elastic force of spring 4032, the sealing piston plate 402 moves back and forth continuously. When the sealing piston plate 402 moves downward, the hot air inside the RF matching unit housing 1 can be drawn in through the anti-backflow component 405. When the hot air inside the RF matching unit housing 1 is drawn into the sealing shell 401 through the channel 4051, it will squeeze the sealing gasket 4054 and cause the sealing gasket 4054 to detach from the annular sealing plate 4055, thus ensuring that the hot air inside the RF matching unit housing 1 is normally drawn into the sealing shell 401. When the sealing piston plate 402 moves upward, the hot air drawn into the sealing shell 401 can be discharged through the anti-backflow component 406. It will squeeze the sealing gasket 4054 on the anti-backflow component 406 and cause the hot air inside the sealing shell 401 to be smoothly discharged through the channel 4051. This reciprocating motion increases the airflow inside the RF matching unit housing 1, thereby improving the heat dissipation effect inside the RF matching unit housing 1 and ensuring the stable operation of the RF matching unit.

[0047] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A radio frequency matching unit assembly structure, comprising a radio frequency matching unit housing (1) and an inductor (2) installed inside the radio frequency matching unit housing (1), characterized in that, The RF matching unit housing (1) is also equipped with a removable capacitor (3), and the capacitor (3) is fixedly installed inside the RF matching unit housing (1) by a capacitor mounting assembly (301). A heat dissipation mechanism (4) for heat dissipation inside the RF matching unit housing (1) is installed on one side of the RF matching unit housing (1), and a dustproof mesh (5) is provided on the other side of the RF matching unit housing (1).

2. The RF matching unit assembly structure according to claim 1, characterized in that: The capacitor mounting assembly (301) includes a concave mounting base (3011) fixedly connected to the inner wall of the RF matching unit housing (1), and elastic snap-fit ​​assemblies (3012) for fixing the capacitor (3) are provided on both sides of the inner wall of the concave mounting base (3011).

3. The RF matching unit assembly structure according to claim 2, characterized in that: The elastic snap-fit ​​assembly (3012) includes a receiving groove (30121) fixedly opened on the concave mounting base (3011). Two symmetrically arranged connecting springs (30122) are fixedly connected to the inner wall of the receiving groove (30121). Sliding rods (30123) are fixedly connected to the ends of the two connecting springs (30122). A sliding block (30124) for fixing the capacitor (3) is fixedly connected to the side of the sliding rod (30123), and the sliding block (30124) is slidably connected to the concave mounting base (3011).

4. The RF matching unit assembly structure according to claim 3, characterized in that: The top and bottom of the sliding rod (30123) are fixedly connected to the limiting slider (30125), and the inner wall of the receiving groove (30121) is provided with a limiting groove (30126) that matches the limiting slider (30125) at the position corresponding to the limiting slider (30125).

5. The RF matching unit assembly structure according to claim 4, characterized in that: The heat dissipation mechanism (4) includes a sealing shell (401) fixedly connected to the side of the RF matching unit housing (1). A sealing piston plate (402) is slidably connected to the inner wall of the sealing shell (401). An elastic telescopic component (403) is provided at the bottom of the sealing piston plate (402). A driving component (404) is provided at the top of the sealing piston plate (402). An anti-backflow component one (405) is installed on the top of one side of the sealing shell (401), and an anti-backflow component two (406) is installed on the top of the other side of the sealing shell (401).

6. The RF matching unit assembly structure according to claim 5, characterized in that: The elastic telescopic assembly (403) includes a mounting shell (4031) fixedly connected to the bottom of the inner wall of the sealing shell (401). A telescopic spring (4032) is fixedly connected to the bottom of the inner wall of the mounting shell (4031). A connecting slider (4033) is fixedly connected to the top of the telescopic spring (4032). A connecting rod (4034) is fixedly connected to the top of the connecting slider (4033). The top of the connecting rod (4034) is fixedly connected to the bottom of the sealing piston plate (402).

7. The RF matching unit assembly structure according to claim 6, characterized in that: The drive assembly (404) includes a servo motor (4041) fixedly connected to the side of the sealing shell (401), and a cam (4042) is fixedly connected to the output shaft of the servo motor (4041) at a position corresponding to the sealing piston plate (402).

8. The RF matching unit assembly structure according to claim 7, characterized in that: The anti-backflow component (405) includes a channel (4051) fixedly installed on the sealing shell (401). An installation rod (4052) is fixedly connected to the inner wall of the channel (4051). Two sealing slide rods (4053) are slidably connected to the installation rod (4052). The ends of the sealing slide rods (4053) are fixedly connected by sealing gaskets (4054). An annular sealing plate (4055) matching the sealing gasket (4054) is fixedly connected to the inner wall of the channel (4051) at a position corresponding to the sealing gasket (4054). A sleeve spring (4056) is sleeved on the sealing slide rod (4053) located between the sealing gasket (4054) and the installation rod (4052).

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