Coaxial connector device

Abstract

Coaxial connector device (1; 5) for electrically connecting a coaxial cable connector and a printed circuit board (100), wherein the coaxial connector device (1; 5) comprises: a main connector (10; 50); and a board connector (20; 60) for mounting on the printed circuit board (100), wherein the main connector (10; 50) has a conductive main connector body (11; 51) which has at one end a first fitting part (R1) for the coaxial cable connector and at the other end a second fitting part (R2); where the first fitting (R1) is a plug fitting; a central contact (13) which, inside the main connector body (11; 51), is positioned on a side of the main connector body (11; 51) that has the first fitting part (R1); and a card edge substrate (17) which, inside the main connector body (11; 51), is positioned on a side of the main connector body (11; 51) which has the second fitting part (R2), wherein the card edge substrate (17) is electrically connected to the center contact (13), wherein the plate connector (20; 60) has a plate connector body (21; 61) in which a slot (23; 63) is formed, wherein the plate connector body (21; 61) is provided with a plurality of contacts (25; 65) in the slot (23; 63); and an outer conductor contact (27; 67) provided in the plate connector body (21; 61), wherein, when the second fitting part (R2) of the main connector (10; 50) is attached to the plate connector (20; 60), an end section of the card edge substrate (17) is coupled to the slot (23; 63) in the plate connector body (21; 61), a plurality of substrate contacts (17a) contained in the card edge substrate (17) electrically contacts the plurality of contacts (25; 65) of the plate connector body (21; 61), and the second fitting part (R2) of the main connector body (11; 51) electrically contacts the outer conductor contact (27; 67).

Description

Technical field

[0001] The present invention relates to a coaxial connector device, and in particular a coaxial connector device for electrically connecting a coaxial cable provided with a connector and a printed circuit board. Background of the invention

[0002] Numerous coaxial connectors for the electrical connection of a coaxial cable equipped with a connector and a printed circuit board are already known (for example, patent literature 1 and 2).

[0003] A coaxial connector disclosed in patent literature 1 comprises an inner conductor, an outer conductor in a cylindrical shape coaxial to the inner conductor, and an insulating base that fixes the inner conductor to the outer conductor in an electrically isolated state. The inner conductor is a thin conductor and includes a connection part to a printed circuit board within a device and a socket part that receives the conductor wire of a coaxial cable. The outer conductor includes a contacting part with an outer conductor-ground contact and a receiving part for the coaxial cable. The ground contact includes a connection part to the printed circuit board within the device and a contacting part with the outer conductor.

[0004] An active connector, disclosed in patent literature 2, comprises a connector base (connector socket) with at least one active element in the base, an external terminal electrically coupled to a transmission line, and an internal terminal electrically coupled to a printed circuit board within a device. The internal terminal includes a plurality of terminal pins projecting from the side face of the connector base. The plurality of terminal pins includes a ground terminal, a signal terminal(s), and a DC power supply terminal. A grounding tab is provided on the side face of the connector base. The grounding tab includes a pair of grounding tab pins. Fig. Figure 9 shows an exemplary configuration of an existing active connector 80, where 81 denotes a connector base or terminal base, 83 denotes an internal circuit board on which an active element is mounted, 85 denotes terminal pins, 87 denotes a grounding tab and 87a denotes grounding tab pins.

[0005] DE 10 2015 116 126 A1 discloses a coaxial connector device suitable for electrically connecting a coaxial cable connector and a printed circuit board, the device comprising: a main connector and a plate connector for mounting on a printed circuit board, the main connector comprising a conductive main connector body having at one end a first fitting part for a coaxial connector and at the other end a second fitting part, and a central contact which, inside the main connector body, is positioned on a side of the main connector body which has the first fitting part;and a card edge substrate which, inside the main connector body, is positioned on a side of the main connector body which has the mating part, wherein the card edge substrate is electrically connected to the center contact, the plate connector comprising a plate connector body in which a slot is formed, the plate connector body being provided with a plurality of contacts in the slot; and an outer conductor contact provided in the plate connector body, wherein, when the second mating part of the main connector is attached to the plate connector, an end section of the card edge substrate is coupled to the slot in the plate connector body, a plurality of substrate contacts contained in the card edge substrate electrically contact the plurality of contacts of the plate connector body, and the second mating part of the main connector body electrically contacts the outer conductor contact.

[0006] DE 601 00 358 T2 discloses a similar coaxial connector device. Citation list for patent literature Patent literature 1: Unexamined Japanese patent application, publication number JP 2003-151 693 A Patent literature 2: Unexamined Japanese patent application, publication number JP 2012-54 030 A Summary of the invention: Technical problem

[0007] When attaching a coaxial connector to a device, terminals (such as connecting parts or connecting pins) of the coaxial connector are inserted into holes formed in a circuit board inside the device, and as such the coaxial connector is electrically connected to a circuit formed on the circuit board.

[0008] For example, in the coaxial connector disclosed in patent literature 1, the connecting part of the inner conductor and the connecting part of the outer conductor are inserted into the holes formed in the circuit board inside the device and then soldered. Similarly, in the active connector disclosed in patent literature 2, one end of each of the plurality of connecting pins 85 and the grounding tab pins are inserted into holes formed in the circuit board inside the device and soldered. The other end of each of the plurality of connecting pins 85 is inserted into a hole formed in the internal circuit board 83 in the connector socket 81 and soldered.

[0009] Various broadcast devices compliant with 4K / 8K broadcasting are being developed, and some have already been deployed. The interface standards for connecting such broadcast devices are 3G-SDI (Serial Digital Interface) with a transmission rate of 3 gigabits per second (Gb / s) and 12G-SDI with a transmission rate of 12 Gb / s. These interface standards demand high electrical performance and reliability for device cabling. Therefore, a connector for joining a transmission line (a coaxial cable) and a device is required, designed and assembled to minimize signal degradation and signal characteristics.

[0010] In the coaxial connector disclosed in patent literature 1, the tips of the connecting parts protrude from the back of the printed circuit board to form stubs when the connecting part of the inner conductor is inserted into the holes formed in the printed circuit board within the device. Similarly, in the active connector disclosed in patent literature 2, as in Fig. Figure 9 shows the tips of the connecting pins protruding from the back of the circuit board to form stubs when a plurality of connecting pins 85 are inserted into the holes formed in a circuit board within a device.

[0011] In addition, as in Fig. As shown in Figure 9, when the other ends of the plurality of connecting pins 85 are inserted into the holes formed in the circuit board 83 which is installed in the connector socket 81, the tips of the other ends protrude from the front of the circuit board, resulting in the formation of stubs.

[0012] Stubs that protrude from the front / back of a printed circuit board, as described above, are called via stubs or dangling via stubs. These stubs cause a degradation of signal quality and transmission characteristics at radio frequencies or higher. Therefore, for connectors that meet standards for extremely high-speed signal transmission, such as 12G-SDI, a solution to the stub problem described above is desirable.

[0013] Furthermore, when connecting the existing connector to the circuit board, the connecting parts of the inner and outer conductors, the connection pins, and the grounding tab pins are manually soldered from the back of the circuit board. Therefore, there is room for improvement in the efficiency of the connection process. There is also the problem that it is time-consuming and laborious to disconnect the connector once it has been installed.

[0014] Therefore, it is an object of the present invention to provide a coaxial connector device that enables a reduction in the deterioration of signal quality and transmission characteristics at high frequencies.

[0015] One object of the present invention is to provide a coaxial connector device that enables the improvement of the efficiency of the connection work with a printed circuit board. Solution to the problem

[0016] According to the invention, this problem is solved by claim 1.

[0017] In a preferred embodiment of the coaxial connector device according to the present invention, the second fitting part can have an inner surface that contacts at least the outer conductor contact when the second fitting part is attached to the plate connector.

[0018] In a preferred embodiment of the coaxial connector device according to the present invention, the inner surface of the second fitting part of the main connector can be cylindrical or semi-cylindrical, and the outer conductor contact of the plate connector can have a spring element provided outside the plate connector body.

[0019] In a preferred embodiment of the coaxial connector device according to the present invention, each of the plurality of contacts of the plate connector and the outer conductor contact can have a connection terminal extending from a bottom part or bottom surface of the plate connector body in a width direction of the plate connector.

[0020] In a preferred embodiment of the coaxial connector device according to the present invention, the card edge substrate of the main connector can have at least one active circuit.

[0021] In addition, in a preferred embodiment of the coaxial connector device according to the present invention, the active circuit can comprise at least a first matching circuit, a second matching circuit connected to the center contact, and a buffer circuit provided between the first matching circuit and the second matching circuit.

[0022] In a preferred embodiment of the coaxial connector device according to the present invention, the slot of the plate connector can be designed such that, when the plate connector is mounted on a printed circuit board, the slot is oriented at a predetermined angle with respect to one side of the printed circuit board or parallel to one side of the printed circuit board. Advantageous effects of the invention

[0023] In the coaxial connector device according to the present invention, the main connector comprises the central contact, which is positioned within the main connector body on one side with the first mating part, and the card edge substrate, which is positioned within the main connector body on one side with the second mating part, the card edge substrate being electrically connected to the central contact. On the other hand, the plate connector, which is attached to the second mating part of the main connector, comprises the plate connector body in which the slot is formed and which is provided with the plurality of contacts in the slot, and the outer conductor contact provided in the plate connector body.When the second mating part of the main connector is attached to the board connector, the end section of the board edge substrate is coupled to the slot in the board connector body. The plurality of substrate contacts contained in the board edge substrate electrically contact the plurality of contacts of the board connector body, and the second mating part of the main connector electrically contacts the outer conductor contact. Accordingly, the coaxial connector according to the present invention can be mounted on the printed circuit board in such a way that it does not form a stub, and a reduction in signal quality degradation and transmission characteristics at high frequencies can be achieved.

[0024] In the coaxial connector device according to the present invention, the main connector can be configured to be detachable from the plate connector. Accordingly, this allows the work of attaching the main connector to the plate connector to be carried out after the plate connector has been mounted on the surface of the printed circuit board, and thus improves the efficiency of the connection work when connecting the coaxial connector device to a printed circuit board.

[0025] The above-described problems and advantages of the present invention, as well as further problems and advantages, will be more clearly understood through the following description of exemplary embodiments. Of course, the embodiment described below is merely an example, and the present invention is not limited to this embodiment. Brief description of the drawings Fig. Figure 1 shows a partially cropped perspective view of an example of a coaxial connector device. Fig. Figure 2 shows a perspective view of an example of a coaxial connector device. Fig. Figure 3 shows a perspective view of the coaxial connector device mounted on a printed circuit board. Fig. Figure 4 shows a perspective cross-sectional view of the coaxial connector device mounted on the circuit board. Fig. Figure 5 shows block diagrams of examples of active circuits mounted on the card edge substrate of a main connector. Fig. Figure 6 shows a perspective view of another example of a coaxial connector device mounted on a printed circuit board. Fig. Figure 7 shows a perspective view of an example of a plate connector in another example of the coaxial connector device. Fig. Figure 8 shows a perspective cross-sectional view of the coaxial connector device mounted on a printed circuit board. Fig. Figure 9 shows a perspective view of an example configuration of an existing active connector. Description of embodiments

[0026] Preferred embodiments of a coaxial connector device according to the present invention are described in detail below with reference to the drawings.

[0027] Fig. Figure 1 shows a cut-out perspective view of an example of a coaxial connector device to which the present invention is applied. Fig. Figure 2 shows a perspective view of the coaxial connector device. Fig. Figure 3 shows a perspective view of the coaxial connector device mounted on a printed circuit board. Fig. Figure 4 shows a perspective cross-sectional view of the coaxial connector device mounted on the circuit board.

[0028] The coaxial connector device according to the embodiment described below represents an example of a straight coaxial connector device configured such that a bayonet Neil-Concelman (BNC) connector plug is attached to one end of a main connector, a panel connector is attached to the other end of the main connector, the panel connector is mounted on a printed circuit board, and the BNC connector plug and the main connector are inserted and removed vertically relative to one side of the printed circuit board. It should be noted that this is only an example, and the present invention is not limited to it.

[0029] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. Figure 4 comprises a coaxial connector device 1, a main connector 10, and a plate connector 20. The main connector 10 includes a conductive main connector body 11, a center contact 13, and a card edge substrate 17. The main connector body 11 has a fitting R1 (corresponding to a first fitting) for a BNC connector at one end and a fitting R2 (corresponding to a second fitting) at the other end. The center contact 13 is positioned within the main connector body 11 on one side with the connector fitting R1. The card edge substrate 17 is positioned within the main connector body 11 on one side with the second fitting R2 and is electrically connected to the center contact 13. The card edge substrate 17 is electrically connected to the central contact 13, and a plurality of substrate contacts 17a are formed on at least one side or both sides of the card edge substrate 17.A fitting 19 of the second fitting part R2 has a cylindrical inner surface intended to contact the side of an outer conductor contact 27 of the plate connector 20, as described later. It should be noted that a fastening part 18 of the main connector body 11 is provided to secure the connector 18 to a wiring plate (not shown) of a device (not shown) with a screw when mounting the coaxial connector device 1 on the device, such as a broadcasting device.

[0030] With reference to Fig. 4. The center contact 13 is held by an insulating element 15 in an electrically insulating manner with respect to the main connector body 11 of the main connector 10. The center contact 13 has a female contact part at one end (on the side of the first fitting part R1) and a connecting part 13a to the card edge substrate 17 at the other end. The connecting part 13a contacts the card edge substrate 17, and then the connecting part 13a is electrically connected to the card edge substrate 17.

[0031] At least one or both sides of the card edge substrate 17 may contain at least one wiring 17b which electrically connects the connecting part 13a of the center contact 13 to the plurality of substrate contacts 17a (see Fig. 5) At least one active circuit can be included in the middle of the wiring 17b of the card edge substrate 17. In other words, a function as an active connector for the main connector 10 can be additionally provided by implementing one or more active circuits on the card edge substrate 17.

[0032] Fig. Figure 5 shows a block diagram of at least two examples of active circuits mounted on the card edge substrate 17. It should be noted that Fig. Figure 5 merely shows examples and the active circuit is not limited to them. In a Fig. In the block diagram shown in Figure 5(A), the active circuit contained in the center of the wiring 17b of the card edge substrate 17 is an active circuit 101 comprising a first matching circuit on the substrate contact side 17a, a second matching circuit on the center contact connection side 13a, and a buffer circuit located between the first and second matching circuits. In this example, the plurality of substrate contacts 17a to which the wiring 17b is connected includes a supply terminal for a DC voltage Vcc, an input terminal for an input signal P11, and a GND terminal. An output signal P31 is supplied to the center contact connection 13a to which the wiring 17b is connected. The buffer circuit is driven by the device-side DC voltage Vcc.The buffer circuit has a function that prevents mutual interference between the input signal P11 and the output signal P31. The main connector 10, built into the card edge substrate 17, with the one in . Fig. The active circuit 101 shown in Figure 5(A) is suitable as an active connector that is connected to a device on the transmitting side.

[0033] In a Fig. The block diagram shown in Figure 5(B) depicts the active circuit contained at the center of the wiring 17b of the card edge substrate 17. This active circuit 102 includes a first matching circuit on the substrate contact side 17a, a second matching circuit on the center contact connection side 13a, and a balancing circuit and buffer circuit located between the first and second matching circuits. In this example, the plurality of substrate contacts 17a, to which the wiring 17b is connected, includes a DC supply terminal Vcc, an output terminal for an output signal P12, and a GND terminal. An input signal P32 is supplied from the wiring 17b, which is connected to the center contact connection 13a. The buffer circuit is driven by the DC voltage Vcc supplied by the device.The buffer circuit has a function that prevents mutual interference between the output signal P12 and the input signal P32. The compensation circuit has a function that corrects the frequency characteristics and / or losses of the coaxial cable, which is a transmission line. The compensation circuit is also driven by the DC voltage Vcc supplied by the device. The main connector 10, which contains the card edge substrate 17 on which the [unclear] is located. Fig. The active circuit 102 shown in Figure 5(B) is suitable as an active connector that is applied to a device on the receiving side.

[0034] Again on Fig. 4 Referring to this, the card edge substrate 17 is mechanically supported by a support element 16, which is provided on one side with the second fitting part R2 of the main connector body 11 of the main connector 10 and is mechanically fastened within the second fitting part R2. It should be noted that the support element 16 can be formed from a conductive material with a desired mechanical strength, so that the end section of the card edge substrate 17 fits into a slot 23 of the plate connector 20 (later referred to in this section). Fig. 1 (as described) can be inserted stably and pulled out of it.

[0035] With reference to the Fig. 1, Fig. 2, Fig. 3 to Fig. Figure 4 of the PCB connector 20 comprises a connector body 21 and an external conductor contact 27. A slot 23 is formed in the connector body 21. A plurality of internal contacts 25 are provided in the slot 23. The connector body 21 has a short, columnar outer shape. The slot 23 is designed such that, when the connector 20 is mounted on the printed circuit board 100, the slot 23 is oriented perpendicular to a surface of the printed circuit board 100. The external conductor 27 is provided on the outer part of the connector body 21 and is attached to the connector body 21. The external conductor contact 27 may include a conductive spring element. Each of the plurality of internal contacts 25 of the connector body 21 has connection terminals 25a, and the external conductor contact 27 has connection terminals 27a.The connecting connections 25a and 27a extend from the bottom part or the bottom surface of the plate connector body 21 in the width direction of the plate connector.

[0036] With reference to the Fig. 3 and Fig. 4. The board connector 20, configured as described above, can be mounted on one side or surface of the printed circuit board 100. The connection terminals 25a and 27a of the board connector 20 are configured such that when the board connector 20 is mounted on the surface of the printed circuit board 100, the terminals 25a and 27a are connected to wires (not shown) on the printed circuit board 100. Thus, the board connector 20 can be mounted on the printed circuit board 100 without any stub wires. It should be noted that reflow soldering can be used for this assembly. Traditionally, the assembly requires manual soldering. However, according to the present invention, the work efficiency can be improved.

[0037] In the coaxial connector device 1, the main connector 10 is configured to be detachable from the plate connector 20. When the second fitting part R2 of the main connector 10 is attached to the plate connector 10, the end section of the card edge substrate 17 is coupled with the slot 23 of the plate connector body 21, the plurality of substrate contacts 17a of the card edge substrate 17 electrically contacts the plurality of inner contacts 25 of the plate connector body 21, and the second fitting part R2 of the main connector 10 electrically contacts the outer conductor 27. In the case where the outer conductor contact 27 contains a conductive spring element, the spring elasticity of the outer conductor contact 27 acts advantageously to make the electrical connection and mechanical coupling between them more stable when the surface of the outer conductor contact 27 contacts the cylindrical inner surface of the fitting 19 of the fitting part R2.

[0038] As described above, the example of a straight coaxial connector device is presented as one embodiment. Below, a right-angle coaxial connector device is described as a further embodiment with reference to the drawings. The right-angle coaxial connector device is configured such that a BNC connector plug and a main connector can be inserted and removed horizontally from one side of a printed circuit board.

[0039] Fig. Figure 6 shows a perspective view of an example of a right-angled coaxial connector device. Fig. Figure 7 shows a perspective view of an example of a plate connector, preferably used for the right-angle coaxial connector device. Fig. Figure 8 shows a perspective cross-sectional view of the right-angled coaxial connector device mounted on a printed circuit board. These drawings include components similar to those shown in the Fig. 1, Fig. 2, Fig. 3 to Fig. The 4 straight coaxial connector devices shown correspond to those designated with the same reference numerals.

[0040] With reference to the Fig. 6, Fig. 7 to Fig. Figure 8 comprises a right-angle coaxial connector device 5, a main connector 50, and a plate connector 60. The main connector 50 includes a conductive main connector body 51 with a fitting R1 for a BNC connector plug at one end and a fitting R2 at the other end, a center contact 13, and a card edge substrate 17. The center contact 13 is positioned within the main connector body 51 on one side with the plug fitting R1. The card edge substrate 17 is positioned within the main connector body 51 on one side with a second fitting R2 and is electrically connected to the center contact 13. A fitting 59 of the second fitting R2 has a semi-cylindrical inner surface that serves to contact the side of an outer conductor contact 67 of the plate connector 60, which will be described later.A fastening part 58 of the main connector body 51 is provided for fastening the fitting part 58 to a wiring panel (not shown), a device (not shown), and a circuit board 100 with screws during the assembly of the coaxial connector device 5 on the device, such as broadcasting equipment.

[0041] The plate connector 60 has a plate connector body 61 and an outer conductor contact 67. A slot 63 is formed in the plate connector body 61. A plurality of internal contacts 65 are provided in the slot 63. Unlike the plate connector 20, which is described in the Fig. 1, Fig. 2, Fig. 3 to Fig. In the straight coaxial connector device 1 shown in Figure 4, the plate connector body 61 of the plate connector 60 of the right-angle coaxial connector device 5 has a short, semi-column-shaped outer form (an inverted U-shape). The slot 63 is designed such that, when the plate connector 60 is mounted on the printed circuit board 100, the slot 63 is oriented parallel to one side of the printed circuit board 100. The outer conductor contact 67 is provided on the outer part of the plate connector body 61 and is attached to the plate connector body 61. The outer conductor contact 67 may include a conductive spring element. Each of the plurality of inner contacts 65 of the plate connector body 61 has connection terminals 65a, and the outer conductor contact 67 has connection terminals 67a. The connecting connections 65a and 67a extend from the bottom part or the bottom surface of the plate connector body 61 in the width direction of the plate connector.

[0042] The connection terminals 65a and 67a of the board connector 60 are configured such that, when the board connector 60 is mounted on the surface of the printed circuit board 100, terminals 65a and 67a are connected to wires (not shown) on the printed circuit board 100. Thus, the board connector 60 can be mounted on the printed circuit board 100 without creating any stub wires. Reflow soldering can be used for this assembly, similar to the case described above for the board connector 20.

[0043] In the coaxial connector device 5, the main connector 50 is configured to be detachable from the plate connector 60. When the second fitting part R2 of the main connector 50 is attached to the plate connector 60, the end section of the card edge substrate 17 is coupled with the slot 63 of the plate connector body 61, the plurality of substrate contacts 17a of the card edge substrate 17 electrically contacts the plurality of contacts 65 of the plate connector body 61, and the second fitting part R2 of the main connector 51 electrically contacts the outer conductor contact 67. In the case where the outer conductor contact 67 is a conductive spring element (for example, spring parts 67b, which are in the Fig. 7 and Fig.8 shown) contains, the spring elasticity of the outer conductor contact 67 acts advantageously to make the electrical connection and the mechanical coupling between them more stable when the surface of the outer conductor contact 67 contacts the semi-cylindrical inner surface of the fitting 59 of the second fitting part R2.

[0044] The description of the embodiment, based on at least two examples, describes those examples in which the mating part of the second mating part of the main connector body has a cylindrical or semi-cylindrical inner surface, and the plate connector body has a short column-like outer shape or a short semi-column-like outer shape (an inverted U-shape). These are only examples. The mating part of the second mating part may have a differently shaped inner surface, and the plate connector body may have a different outer shape. The description of the embodiment also describes an example in which the main connector acts as the active connector, containing the active circuitry in the center of the card edge substrate wiring. This is only one example.The main connector can be a so-called passive connector, in which only wiring is formed and no active circuitry is included in the card edge substrate.

[0045] The coaxial connector device according to the present invention is particularly effective at the input or output end of numerous devices that transmit signals or electrical energy using a transmission line (broadcasting equipment, video and audio equipment, signal transmission terminals, signal reception terminals, relay equipment and all other devices) when it is necessary to meet high requirements for signal quality and transmission characteristics at high frequencies. Commercial applicability

[0046] The present invention is widely applicable to coaxial connector devices for electrically connecting a coaxial cable provided with a connector and a printed circuit board. List of reference symbols 1.5 Coaxial connection device 10, 50 main connectors 11, 51 Main connector body 13 Middle contact 13a Connecting part 15 insulating element 16 support element 17 Map edge substrate 17a Substrate contact 17b Wiring 18, 58 Fastening part 19, 59 Suitable 20, 60 plate connectors 21, 61 Plate connector body 23, 63 slots 25, 65 inner contact 27, 67 External conductor contact 25a, 27a, 65a, 67a Connection 67b Spring part R1 first part R2 second part

Claims

Coaxial connector device (1; 5) for electrically connecting a coaxial cable connector and a printed circuit board (100), wherein the coaxial connector device (1; 5) comprises: a main connector (10; 50); and a plate connector (20; 60) for mounting on the printed circuit board (100), wherein the main connector (10; 50) comprises a conductive main connector body (11; 51) having at one end a first fitting (R1) for the coaxial cable connector and at the other end a second fitting (R2); wherein the first fitting (R1) is a plug fitting; a center contact (13) which is positioned inside the main connector body (11; 51) on a side of the main connector body (11; 51) that has the first fitting (R1); and a map edge substrate (17) which, inside the main connector body (11; 51), is located on one side of the main connector body (11;51), which has the second fitting part (R2), is positioned, wherein the card edge substrate (17) is electrically connected to the central contact (13), wherein the plate connector (20; 60) has a plate connector body (21; 61) in which a slot (23; 63) is formed, wherein the plate connector body (21; 61) is provided with a plurality of contacts (25; 65) in the slot (23; 63); and an outer conductor contact (27; 67) provided in the plate connector body (21; 61), wherein, when the second fitting part (R2) of the main connector (10; 50) is attached to the plate connector (20; 60), an end section of the card edge substrate (17) is coupled to the slot (23; 63) in the plate connector body (21; 61), a plurality of substrate contacts (17a) contained in the card edge substrate (17) electrically contacts the plurality of contacts (25; 65) of the plate connector body (21; 61), and the second fitting part (R2) of the main connector body (11;51) electrically contacts the outer conductor contact (27; 67). Coaxial connector device (1; 5) according to claim 1, wherein the second fitting part (R2) has an inner surface which contacts at least the outer conductor contact (27; 67) when the second fitting part (R2) is attached to the plate connector (20; 60). Coaxial connector device (1; 5) according to claim 2, wherein the inner surface of the second fitting part (R2) of the main connector (10; 50) is cylindrical or semi-cylindrical and the outer conductor contact (27; 67) of the plate connector (20; 60) has a spring element which is provided outside the plate connector body (21; 61). Coaxial connector device (1; 5) according to claim 3, wherein each of the plurality of contacts (25; 65) of the plate connector (20; 60) and the outer conductor contact (27; 67) has a connecting terminal (25a, 27a; 65a, 67a) extending from a bottom part or bottom surface of the plate connector body (21; 61) in a width direction of the plate connector (20; 60). Coaxial connector device (1; 5) according to claim 1, wherein the card edge substrate (17) of the main connector (10; 50) has at least one active circuit. Coaxial connector device (1; 5) according to claim 5, wherein the active circuit comprises at least a first matching circuit, a second matching circuit connected to the center contact (13), and a buffer circuit provided between the first matching circuit and the second matching circuit. Coaxial connector device (1; 5) according to claim 1, wherein the slot (23; 63) of the plate connector (20; 60) is designed such that when the plate connector (20; 60) is mounted on the printed circuit board (100), the slot (23; 63) is oriented at a predetermined angle with respect to one side of the printed circuit board (100) or parallel to one side of the printed circuit board (100).

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