Impedance circuit board

Abstract

The utility model provides an impedance circuit board, and belongs to the technical field of circuit boards. An impedance circuit board comprises an upper protection plate, a lower protection plate, a lower protection plate, a lower protection plate, a circuit board main body, a left protection plate and a right protection plate, the circuit connecting guide plate is mounted on the inner side of the loading groove, a mounting seat is mounted on the outer side of the connecting disc, and the mounting seat is rotationally connected with the connecting disc; the mounting frame is mounted at the outer end of the mounting seat, a socket is arranged on the outer side of the connecting guide plate, and the connecting shaft is rotationally connected with the mounting frame. The resistance strip is in tight sliding connection with the connection disc and the circuit connection guide plate, so that the resistance value between the socket and the circuit board body can be adjusted, the butt joint resistance value requirements of different devices are met, meanwhile, tight fit sliding is utilized, the smoothness of a circuit is ensured, and meanwhile the service life of the socket is prolonged. And random change of the resistance value due to the influence of equipment vibration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to an impedance circuit board. Background Art

[0002] In traditional printed circuit board design, impedance is usually formed by inductance, capacitance and resistance formed in the printed circuit board, wherein the inductance mainly depends on the thickness of the metal layer and the length of the line; the capacitance mainly depends on the width of the line, the thickness of the dielectric layer and the dielectric constant; and the resistance mainly depends on the length of the line, the width of the line, the thickness of the metal layer and the resistance parameters of the metal layer;

[0003] Most of the circuit boards have fixed resistance values, which are difficult to adapt to the resistance requirements of different devices. In addition, the plug docking angle of some devices is limited by the line, and the plug and interface need to be properly adjusted. However, most of the circuit board connectors are fixed and welded, which is difficult to adjust. Therefore, the present application provides an impedance circuit board. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an impedance circuit board.

[0005] The technical solution of the utility model is achieved in this way:

[0006] An impedance circuit board, comprising:

[0007] The loading slots are provided on the left and right sides of the circuit board body, and the guide slots are provided on the inner side of the upper protection plate to provide a moving space for the resistance adjustment mechanism;

[0008] A resistance adjustment mechanism is installed on the inner side of the circuit board body, and a mounting bar is installed on the upper end of the resistance adjustment mechanism;

[0009] The rotating mechanism is installed at the outer end of the resistance adjusting mechanism and provides a rotating structure. A connecting shaft is fixed on the outer side of the socket, and the connecting shaft is rotatably connected with the mounting frame.

[0010] Furthermore, the resistance adjustment mechanism includes a resistor bar, the lower end of the resistor bar is connected to a circuit connection guide plate, the circuit connection guide plate is installed on the inner side of the loading slot, a connecting plate is provided on the front side of the resistor bar, and the resistor bar, the connecting plate and the circuit connection guide plate all form a tight sliding connection.

[0011] Furthermore, the rotating mechanism includes a mounting frame installed on the outside of the socket, and a connecting guide plate is installed on the inner side of the mounting frame, a mounting seat is installed on the inner end of the mounting frame, and the mounting seat and the connecting plate are rotatably connected, and the lower end of the mounting seat passes through the upper protective plate and is rotatably connected with the circuit connection guide plate.

[0012] Furthermore, a grab bar is installed on the upper end of the installation bar, and both the installation bar and the grab bar are made of insulating material.

[0013] Furthermore, a fastening bolt is threadedly mounted on the inner side of the mounting strip, and the lower end of the fastening bolt is fitted with the upper protective plate.

[0014] Furthermore, the longitudinal section of the resistor bar is in an "n" shape, and the resistor bar and the mounting bar form a snap-fit ​​connection.

[0015] Furthermore, a through groove structure is provided on the inner side of the connecting plate for sliding the upper side of the resistor bar, and a groove structure is also provided on the inner side of the circuit connection guide plate for sliding the lower side of the resistor bar, and the groove structure is used to limit the travel of the resistor bar.

[0016] Furthermore, the connecting guide plates are arranged at equal intervals on the inner side of the mounting frame, and the outer side of the connecting guide plates is arranged in an arc shape, and the connecting guide plates and the inner side of the socket form a fitting arrangement.

[0017] Furthermore, groove structures are provided on the upper and lower sides of the socket, and the groove structures are arranged in a one-to-one correspondence with the connecting guide plates to increase the rotation angle of the socket.

[0018] Furthermore, the cross section of the loading slot is in a "T" shape, and the inner end of the loading slot is arranged corresponding to the guide slot to provide a sliding space for the resistor bar.

[0019] The utility model has the following beneficial effects:

[0020] 1. The resistor bar is tightly connected with the connecting plate and the circuit connecting guide plate, so that the resistance value between the socket and the circuit board body can be adjusted to meet the resistance value requirements of different devices. At the same time, the tight sliding is used to ensure the smoothness of the circuit and avoid the random change of the resistance value due to the vibration of the equipment. A fastening bolt is threadedly installed on the inner side of the mounting bar, and the lower end of the fastening bolt is fitted with the upper protective plate, so that the fastening bolt can fix the mounting bar and the upper protective plate, thereby further limiting the movement of the resistor bar.

[0021] 2. The connecting shaft is rotatably connected with the mounting frame, and the lower end of the mounting seat passes through the upper protective plate and is rotatably connected with the circuit connection guide plate, so that the socket can be rotated at a horizontal angle while keeping the circuit unobstructed, and the socket can be rotated in the horizontal direction through the rotatable connection between the socket and the mounting frame, thereby increasing the rotation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of the impedance circuit board of the utility model;

[0023] Figure 2 It is a front view schematic diagram of the protection plate and the circuit board body on the impedance circuit board of the utility model being separated;

[0024] Figure 3 It is a front view schematic diagram of the exploded structure of the connection between the mounting seat and the connecting plate in the impedance circuit board of the utility model;

[0025] Figure 4 The utility model is a bottom view schematic diagram of an exploded structure in which a mounting seat and a connecting plate are connected in an impedance circuit board. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 4 As shown, the impedance circuit board provided by the utility model includes a circuit board body 2 arranged at the lower side of an upper protection plate 1, and a lower protection plate 3 is arranged at the lower side of the circuit board body 2, forming the whole circuit board, and loading grooves 4 are provided on the left and right sides of the circuit board body 2 to provide installation positions for the circuit connection guide plate 6, and a guide groove 5 is provided on the inner side of the upper protection plate 1 to provide a moving position for the resistor bar 14;

[0028] The circuit connection guide plate 6 is installed on the inner side of the loading slot 4, and a resistor bar 14 is installed on the inner side of the circuit connection guide plate 6, and a mounting bar 8 is installed on the upper end of the resistor bar 14, and a connecting plate 13 is provided on the front side of the resistor bar 14, and the resistor bar 14, the connecting plate 13 and the circuit connection guide plate 6 are all tightly slidably connected, forming an adjustment part of the sliding resistance, so that the resistance value between the socket 7 and the circuit board body 2 can be adjusted, so as to adapt to the docking resistance value requirements of different devices, and at the same time, by using tight fitting sliding, the circuit is ensured to be unobstructed while avoiding the random change of the resistance value due to the vibration of the equipment, and a mounting seat 12 is installed on the outer side of the connecting plate 13, and the mounting seat 12 is rotatably connected to the connecting plate 13, and the lower end of the mounting seat 12 passes through the upper protective plate 1 and is rotatably connected to the circuit connection guide plate 6, so that the mounting seat 12 has an angular rotation structure;

[0029] The mounting frame 10 is installed on the outer end of the mounting seat 12, and a connecting guide plate 11 is installed on the inner side of the mounting frame 10, a socket 7 is provided on the outer side of the connecting guide plate 11, and a connecting shaft 9 is fixed on the outer side of the socket 7, the connecting shaft 9 and the mounting frame 10 form a rotational connection, combined with the horizontal rotation of the mounting seat 12, the socket 7 can be rotated at a horizontal angle while keeping the circuit unobstructed, and through the rotational connection between the socket 7 and the mounting frame 10, the socket 7 can be rotated in the horizontal direction, increasing the rotation direction.

[0030] A grab bar 15 is also installed at the upper end of the installation bar 8, and both the installation bar 8 and the grab bar 15 are made of insulating materials, and a protrusion is added to facilitate grabbing, thereby driving the installation bar 8 to slide.

[0031] A fastening bolt 16 is also threadedly installed on the inner side of the mounting bar 8, and the lower end of the fastening bolt 16 is fitted with the upper protective plate 1, so that the fastening bolt 16 can fix the mounting bar 8 and the upper protective plate 1, further limit the movement of the resistor bar 14, increase the fixing ability of the mounting bar 8, and prevent it from sliding randomly due to external force, thereby causing the resistance value to change.

[0032] The longitudinal section of the resistor bar 14 is in the shape of an "n", and the resistor bar 14 and the mounting bar 8 form a snap-fit ​​connection. The "n"-shaped structure of the resistor bar 14 is used to form a passage between the circuit connection guide plate 6 and the connecting plate 13, and the raised structure at the upper end of the resistor bar 14 is used to reinforce the mounting and fixing structure between the resistor bar 14 and the mounting bar 8.

[0033] A through groove structure is provided on the inner side of the connecting plate 13 for the upper side of the resistor bar 14 to slide, and a groove structure is also provided on the inner side of the circuit connection guide plate 6 for the lower side of the resistor bar 14 to slide, and the groove structure is used to limit the stroke of the resistor bar 14, thereby preventing the resistor bar 14 from detaching from the connecting plate 13, and at the same time preventing the inner end of the resistor bar 14 from frequently contacting the guide groove 5 at the maximum stroke, thereby preventing the upper protective plate 1 from being damaged.

[0034] The connecting guide plates 11 are arranged at equal intervals on the inner side of the mounting frame 10, and the outer side of the connecting guide plates 11 is arranged in an arc shape, and the connecting guide plates 11 are fitted with the inner side of the socket 7 to increase the contact area between the socket 7 and the connecting guide plates 11, thereby ensuring the smoothness of the circuit and reducing the possibility of short circuit.

[0035] The upper and lower sides of the socket 7 are also provided with groove structures, and the groove structures are arranged in a one-to-one correspondence with the connecting guide plate 11, which can increase the rotation angle of the socket 7 without reducing the contact area between the connecting guide plate 11 and the socket 7.

[0036] The cross section of the loading slot 4 is in a “T” shape, and the inner end of the loading slot 4 is arranged corresponding to the guide slot 5 to provide a sliding space for the resistor bar 14 .

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An impedance circuit board, characterized in that: include: A loading slot (4) is provided on the left and right sides of the circuit board body (2), and a guide slot (5) is provided on the inner side of the upper protection plate (1) to provide a moving space for the resistance value adjustment mechanism; A resistance adjustment mechanism, which is installed on the inner side of the circuit board body (2), and a mounting bar (8) is installed on the upper end of the resistance adjustment mechanism; The rotating mechanism is installed at the outer end of the resistance adjusting mechanism and provides a rotating structure for (7). A connecting shaft (9) is fixed on the outer side of the socket (7), and the connecting shaft (9) is rotatably connected with the mounting frame (10).

2. An impedance circuit board according to claim 1, characterized in that: The resistance value adjustment mechanism comprises a resistor bar (14), the lower end of the resistor bar (14) is connected to a circuit connection guide plate (6), the circuit connection guide plate (6) is installed on the inner side of the loading slot (4), a connecting plate (13) is arranged on the front side of the resistor bar (14), and the resistor bar (14) forms a tight sliding connection with the connecting plate (13) and the circuit connection guide plate (6).

3. The impedance circuit board according to claim 1, characterized in that: The rotating mechanism comprises a mounting frame (10) mounted on the outside of the socket (7), and a connecting guide plate (11) is mounted on the inside of the mounting frame (10), a mounting seat (12) is mounted on the inner end of the mounting frame (10), and the mounting seat (12) is rotatably connected to the connecting plate (13), and the lower end of the mounting seat (12) passes through the upper protective plate (1) and is rotatably connected to the circuit connection guide plate (6).

4. An impedance circuit board according to claim 3, characterized in that: A grabbing strip (15) is also installed at the upper end of the installation strip (8), and both the installation strip (8) and the grabbing strip (15) are made of insulating materials.

5. The impedance circuit board according to claim 4, characterized in that: A fastening bolt (16) is also threadedly mounted on the inner side of the mounting strip (8), and the lower end of the fastening bolt (16) is fitted with the upper protective plate (1).

6. The impedance circuit board according to claim 2, characterized in that: The longitudinal section of the resistor bar (14) is in the shape of an "n", and the resistor bar (14) and the mounting bar (8) form a snap-fit ​​connection.

7. The impedance circuit board according to claim 5, characterized in that: The inner side of the connecting plate (13) is provided with a through groove structure for providing the upper side of the resistor bar (14) with sliding motion, and the inner side of the circuit connection guide plate (6) is also provided with a groove structure for the lower side of the resistor bar (14) with sliding motion, and the groove structure is used to limit the travel of the resistor bar (14).

8. The impedance circuit board according to claim 3, characterized in that: The connecting guide plates (11) are arranged at equal intervals on the inner side of the mounting frame (10), and the outer side of the connecting guide plates (11) is arranged in an arc shape, and the connecting guide plates (11) and the inner side of the socket (7) are fitted together.

9. The impedance circuit board according to claim 8, characterized in that: The upper and lower sides of the socket (7) are also provided with groove structures, and the groove structures are arranged in a one-to-one correspondence with the connecting guide plates (11) to increase the rotation angle of the socket (7).

10. The impedance circuit board according to claim 9, characterized in that: The cross section of the loading slot (4) is in a "T" shape, and the inner end of the loading slot (4) is arranged corresponding to the guide slot (5) to provide a sliding space for the resistor bar (14).

Images