High-frequency signal adapter plate

Abstract

The utility model belongs to the technical field of high-frequency signal transfer, and particularly discloses a high-frequency signal transfer board which comprises a transfer circuit board and a connecting piece, and the connecting piece is further provided with a slot used for fixing a high-frequency connector. The switching circuit board is provided with a plurality of photosensitive board contact points, a plug hole and a high-frequency signal transmission microstrip line, the photosensitive board contact points are connected with a joint of the photosensitive board, a pin is arranged in the plug hole and used for connecting the high-frequency connector and the high-frequency signal transmission microstrip line, the other end of the high-frequency signal transmission microstrip line is connected with the photosensitive board contact points, and the other end of the high-frequency signal transmission microstrip line is connected with the photosensitive board contact points. The bottom of the pin is clamped with the high-frequency connector, and the side wall of the pin is in interference fit with the plugging hole. According to the utility model, the switching circuit board is fixedly connected with the connecting piece, and the plugging hole with the circular truncated cone structure is arranged on the switching circuit board, so that reliable connection between the pin and the plugging hole is ensured, and as the high-frequency signal transmission microstrip line is connected with the high-frequency connector in a plugging manner, echo is avoided, and the signal switching precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high frequency signal switching technical field, especially relate to a high frequency signal switching board. BACKGROUND

[0002] High frequency signal switching circuit board is the important switching part of photosensitive circuit, realizes signal transmission etc. function through integrated design, in order to guarantee the reliability of signal transmission, structural design is double-layer structure, the upper layer is signal transmission circuit, the lower layer insulating spacer, and high frequency connector is connected with signal switching board through insulating spacer, signal realizes conduction with photosensitive circuit after passing through switching board, and finally completes the transmission of signal.

[0003] When high frequency signal switching transmission, switching circuit board and high frequency connector need to be conducted, usually adopts the welding mode to realize the connection of high frequency connector and switching board, and the scheme can realize reliable connection, but the tin amount of welding point is difficult to realize accurate control, and echo is easy to produce, and signal transmission can be realized by repeatedly adjusting tin amount. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in prior art, and provides a high frequency signal switching board.

[0005] The utility model provides a high frequency signal switching board, including switching circuit board and connecting piece, the switching circuit board is fixedly arranged on the connecting piece, the connecting piece is provided with the light inlet channel for passing through light, and the photosensitive board is arranged at the top of light inlet channel, the connecting piece is also provided with the slot for fixing high frequency connector,

[0006] A plurality of photosensitive board contact points, plug-in holes and high frequency signal transmission microstrip lines are arranged on the switching circuit board, the photosensitive board contact points are connected with the connectors of the photosensitive board, the plug-in holes are provided with plug pins inside for connecting the high frequency connector and high frequency signal transmission microstrip lines, the other end of the high frequency signal transmission microstrip line is connected with the photosensitive board contact point, the bottom of the plug pin is clamped with the high frequency connector, and the side wall of the plug pin is in interference fit with the plug-in hole.

[0007] The number of the photosensitive board contact points, plug-in holes and high frequency signal transmission microstrip lines is same with the number of the connectors of the high frequency connector and photosensitive board.

[0008] The plug-in hole is circular truncated cone structure, and the aperture gradually decreases from the top to the bottom of the switching circuit board.

[0009] Further, the adapter circuit board bottom is further provided with an insulating plate with the same shape as the adapter circuit board, mounting holes are formed in the adapter circuit board and the insulating plate, and screws are arranged in the mounting holes to fix the adapter circuit board and the insulating plate on the connecting piece.

[0010] Further, a through hole is formed in the center of the adapter circuit board and the insulating plate, six groups of high-frequency signal transmission microstrip lines are symmetrically arranged on both sides of the through hole, one end of each group of the high-frequency signal transmission microstrip lines is connected with the high-frequency connector through a pin, and the other end of each group of the high-frequency signal transmission microstrip lines is connected with a contact point of a photosensitive plate.

[0011] Further, the lengths of each group of the high-frequency signal transmission microstrip lines are equal.

[0012] Further, a sunken mounting plane is formed in the top of the connecting piece, the mounting plane is adapted to the adapter circuit board, so that the adapter circuit board is coplanar with the photosensitive plate.

[0013] Further, a reserved hole is formed in the contact point of the photosensitive plate, and a probe is arranged in the reserved hole to reinforce the contact between the high-frequency signal transmission microstrip line and the photosensitive plate.

[0014] Further, the diameter of the plug-in hole gradually changes from 1.5 mm to 1.2 mm.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that:

[0016] The adapter circuit board is fixedly connected with the connecting piece, and a plug-in hole with a circular truncated cone structure is formed in the adapter circuit board, so that the reliable connection between the pin and the plug-in hole is ensured, the high-frequency signal transmission microstrip line and the high-frequency connector are connected in the plug-in form, echo is avoided, and the signal switching precision is improved.

[0017] The high-frequency signal transmission microstrip line is designed to be equal in length, the photosensitive signal is synchronously transmitted, and the photosensitive signal transmission precision is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The following drawings only schematically illustrate and explain the utility model, and are not used to limit the scope of the utility model, wherein:

[0019] Figure 1 The utility model discloses a structure schematic view;

[0020] Figure 2: schematic diagram of adapter circuit board structure;

[0021] Figure 3 : schematic diagram of insulating plate setting position;

[0022] Figure 4 : structure explosion drawing of the utility model;

[0023] Figure 5 : sectional view of connecting piece;

[0024] In the drawing: 1, connecting piece; 2, adapter circuit board; 3, mounting hole; 4, plug-in hole; 5, high-frequency signal transmission microstrip line; 6, photosensitive plate; 7, insulating plate; 8, plug pin; 9, photosensitive plate contact point; 10, light inlet channel; 11, high-frequency connector. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme, design method and advantages of the utility model more clear and explicit, the utility model is further explained in detail below by specific embodiments combined with the drawings. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0026] As Figure 1 , Figure 4 and Figure 5 indicated, the utility model provides a kind of high-frequency signal adapter plate, including adapter circuit board 2 and connecting piece 1, the adapter circuit board 2 is fixedly arranged on the connecting piece 1, the connecting piece 1 is provided with the light inlet channel 10 for passing through light, and photosensitive plate 6 is arranged at the top of light inlet channel 10;The connecting piece 1 is also provided with the plug-in slot for fixing high-frequency connector 11;A plurality of groups of photosensitive plate contact point 9, plug-in hole 4 and high-frequency signal transmission microstrip line 5 are arranged on adapter circuit board 2, the joint of photosensitive plate contact point 9 is connected with the photosensitive plate 6, the position of plug-in hole 4 is adapted to the position of high-frequency connector 11, plug pin 8 is arranged inside plug-in hole 4, for connecting high-frequency connector 11 and high-frequency signal transmission microstrip line 5, another end of high-frequency signal transmission microstrip line 5 is connected with photosensitive plate contact point 9, the bottom of plug pin 8 is clamped with high-frequency connector 11, and the side wall of plug pin 8 is interference fit with plug-in hole 4;Wherein, the number of photosensitive plate contact point 9, plug-in hole 4, high-frequency signal transmission microstrip line 5 is same with the joint number of high-frequency connector 11 and photosensitive plate 6;As Figure 2As shown, the plug-in hole 4 is a circular truncated cone structure, and the hole diameter gradually decreases from the top to the bottom of the adapter circuit board 2, specifically, the hole diameter of the plug-in hole 4 gradually changes from 1.5mm to 1.2mm, the pin 8 generally includes a needle and an insulating needle body outside the needle, in this embodiment, the diameter of the needle body is 1.3mm, when the pin 8 is inserted into the plug-in hole 4, the needle passes through the plug-in hole 4 and is connected with the high-frequency connector 11 at the bottom of the plug-in hole 4, and the needle body is in interference fit with the plug-in hole 4.

[0027] As shown in Figure 3 , the bottom of the adapter circuit board 2 is also provided with an insulating plate 7 which has the same shape as the adapter circuit board 2, and mounting holes 3 are formed in the adapter circuit board 2 and the insulating plate 7, and screws are arranged in the mounting holes 3 for fixing the adapter circuit board 2 and the insulating plate 7 on the connecting piece 1, and the insulating plate 7 is arranged to effectively prevent the circuit board from contacting other conductive objects and avoid short circuit caused by accidental contact. A through hole is formed in the center of the adapter circuit board 2 and the insulating plate 7, and six groups of high-frequency signal transmission microstrip lines 5 are symmetrically arranged on both sides of the through hole, one end of each group of the high-frequency signal transmission microstrip lines 5 is connected with the high-frequency connector 11 through the pin 8, and the other end of each group of the high-frequency signal transmission microstrip lines 5 is connected with the photosensitive plate contact point 9. The lengths of each group of the high-frequency signal transmission microstrip lines 5 are equal, realizing synchronous transmission of photosensitive signals and further improving the transmission accuracy of the photosensitive signals.

[0028] Continuing to refer to Figure 4 , a sunken mounting plane is formed in the top of the connecting piece 1, and the mounting plane is adapted to the adapter circuit board 2, so that the adapter circuit board 2 is coplanar with the photosensitive plate 6, and the reliable connection of the adapter circuit board 2 and the photosensitive plate 6 is ensured. A reserved hole is formed at the photosensitive plate contact point 9, and a probe is arranged in the reserved hole for reinforcing the contact between the high-frequency signal transmission microstrip line 5 and the photosensitive plate 6.

[0029] The utility model adopts external optical signals which are irradiated to the photosensitive plate 6 through the light inlet channel 10, and the electrons in the photosensitive plate 6 can absorb photon energy, so as to change the electrical state, and the signal is transmitted to the high-frequency connector 11 through the high-frequency signal transmission microstrip line 5, realizing the conversion of optical signals and high-frequency signals, in this process, the high-frequency signal transmission microstrip line 5 and the high-frequency connector 11 are connected in the mode of pin insertion, avoiding the echo phenomenon caused by welding, and improving the accuracy of high-frequency signal conversion.

[0030] The above has described various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements in the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A high-frequency signal adapter plate comprising an adapter circuit board (2) and a connection piece (1), the adapter circuit board (2) being fixedly arranged on the connection piece (1), characterized in that The connecting piece (1) is provided with a light inlet channel (10) for light rays, and a photosensitive plate (6) is arranged on the top of the light inlet channel (10); the connecting piece (1) is also provided with a slot for fixing a high-frequency connector (11); The adapter circuit board (2) is provided with a plurality of photosensitive plate contact points (9), plug-in holes (4) and high-frequency signal transmission microstrip lines (5), the photosensitive plate contact points (9) are connected with the joints of the photosensitive plate (6), the plug-in holes (4) are internally provided with a plug pin (8) for connecting the high-frequency connector (11) and the high-frequency signal transmission microstrip line (5), the other end of the high-frequency signal transmission microstrip line (5) is connected with the photosensitive plate contact point (9), the bottom of the plug pin (8) is clamped with the high-frequency connector (11), and the sidewall of the plug pin (8) is interference-fitted with the plug-in hole (4); The number of the photosensitive plate contact points (9), the plug-in holes (4) and the high-frequency signal transmission microstrip lines (5) is same as the number of the joints of the high-frequency connector (11) and the photosensitive plate (6); The plug-in hole (4) is a circular truncated cone structure, and the aperture gradually decreases from the top to the bottom of the adapter circuit board (2).

2. The high frequency signal adapter plate of claim 1, wherein, The bottom of the adapter circuit board (2) is also provided with an insulating plate (7) with the same shape as the adapter circuit board (2), mounting holes (3) are formed in the adapter circuit board (2) and the insulating plate (7), and screws are arranged in the mounting holes (3) for fixing the adapter circuit board (2) and the insulating plate (7) on the connecting piece (1).

3. A high frequency signal adapter plate according to claim 2, wherein Through holes are formed in the centers of the adapter circuit board (2) and the insulating plate (7), six groups of high-frequency signal transmission microstrip lines (5) are symmetrically arranged on both sides of the through holes, one end of each group of the high-frequency signal transmission microstrip lines (5) is connected with the high-frequency connector (11) through the plug pin (8), and the other end of each group of the high-frequency signal transmission microstrip lines (5) is connected with the photosensitive plate contact point (9).

4. The high frequency signal adapter plate of claim 3, wherein, The lengths of each group of the high-frequency signal transmission microstrip lines (5) are equal.

5. A high frequency signal adapter plate according to claim 4, wherein A sunken mounting plane is formed in the top of the connecting piece (1), the mounting plane is adapted to the adapter circuit board (2), so that the adapter circuit board (2) is coplanar with the photosensitive plate (6).

6. The high frequency signal adapter plate of claim 1, wherein, A reserved hole is formed at the photosensitive plate contact point (9), and a probe is arranged in the reserved hole for reinforcing the contact between the high-frequency signal transmission microstrip line (5) and the photosensitive plate (6).

7. The high frequency signal adapter plate of claim 1, wherein, The aperture of the plug-in hole (4) gradually changes from 1.5 mm to 1.2 mm.

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