Jig device for measuring terminal resistance of ethernet hybrid connector

Abstract

The present invention discloses a jig device for measuring the termination resistance of an Ethernet hybrid connector, wherein a printed circuit board connected to the hybrid connector via a wire is detachably mounted on a base plate in various directions by means of a detachable connection part, thereby aligning the wire to prevent twisting and improving the reliability of the termination resistance measurement. A jig device for measuring the termination resistance of a disclosed Ethernet hybrid connector is characterized by comprising a base plate on which a hybrid connector is positioned in the center, a printed circuit board connected in plurality to the hybrid connector via wires to process the termination resistance, and a detachable connection part that connects the printed circuit board to the base plate at various angles so as to enable alignment of the wires.

Description

Technology Field

[0001] The present invention relates to a jig device for measuring the termination resistance of an Ethernet hybrid connector, and more specifically, to a jig device for measuring the termination resistance of an Ethernet hybrid connector in which a printed circuit board connected to the hybrid connector via a wire is detachably mounted on a base plate in various directions by means of a detachable connection part, thereby aligning the wire to prevent twisting and improving the reliability of the termination resistance measurement. Background Technology

[0003] In general, as electronic control technology and information and communication technology have advanced rapidly, various devices in automobiles that were previously operated by mechanical methods are now being driven and controlled by electrical methods for various reasons, such as driver convenience and safety.

[0004] Accordingly, numerous electronic devices are installed in vehicles, and in particular, various sensors and numerous controllers such as EMS (Engine Management System), HCU (Hybrid Control Unit), TCU (Transmission Control Unit), and ABS ECU are used for the electronic control of the vehicle.

[0005] High-speed CAN (Controller Area Network) communication is primarily used as a communication method between electronic devices in vehicles, and this has become an important means of communication for constituting vehicle networks today.

[0006] This type of vehicle CAN communication system is a vehicle optimization system that provides a CAN communication bus, which is a data exchange path, for data exchange between a central controller and sub-controllers equipped in the vehicle, and can adjust the priority of various data exchanged through it.

[0007] Recently, as the number of controllers installed in vehicles increases and cooperative control between controllers becomes important, the importance of CAN communication, a vehicle network, is also gradually increasing.

[0008] A CAN communication line is equipped with two CAN wires (main wires), CAN high and CAN low, to form a CAN bus, and at both ends, termination resistors are distributed and connected to specific electronic devices to stabilize the state of the CAN wires while maintaining a constant potential difference between the CAN wires. Here, each termination resistor is connected in parallel with each other, and multiple electronic devices are branched and connected to the CAN wires through stubs.

[0009] These high-speed CAN buses include a main line with a closed-loop structure having termination resistors connected at both ends, and branch lines connecting the main line and CAN nodes (each electronic device such as a controller).

[0010] However, since the signal of a conventional high-speed CAN bus main line must be superimposed with the reflected wave that travels to each node through not only the main line but also all branch lines and is reflected back, the sum of the lengths of the main line and branch lines is limited to ensure the stability of CAN operation, and due to such limitations, there are difficulties in designing a bus that responds to the continuously increasing number of CAN nodes and various locations.

[0011] However, since the signal of a conventional high-speed CAN bus main line must be superimposed with the reflected wave that travels to each node through not only the main line but also all branch lines and is reflected back, the sum of the lengths of the main line and branch lines is limited to ensure the stability of CAN operation, and due to such limitations, there are difficulties in designing a bus that responds to the continuously increasing number of CAN nodes and various locations.

[0012] Therefore, there is a need to improve this.

[0013] A related background technology is Korean Registered Patent Publication No. 10-2173977 (Registered on Oct. 29, 2020, Title: Termination Resistance Push Connector). The problem to be solved

[0015] The present invention was created in response to the aforementioned necessity, and aims to provide a jig device for measuring the termination resistance of an Ethernet hybrid connector that improves the reliability of termination resistance measurement by aligning the wires to prevent twisting, wherein a printed circuit board connected to the hybrid connector via wires is detachably mounted on a base plate in various directions by means of a detachable connection part. means of solving the problem

[0017] To achieve the above-mentioned objective, a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention comprises a base plate on which a hybrid connector is disposed in the center, a printed circuit board connected in plurality to the hybrid connector via wires for processing termination resistance, and a detachable connection part that connects the printed circuit board to the base plate at various angles to enable alignment of the wires. The detachable connection part comprises a support plate that supports the printed circuit board so as to be seated, and a position fixing bolt that is inserted into the connecting hole part and connected to the support plate so as to be fixed while the support plate is seated on the base plate, and is connected to the connection hole part so as to be fixed. The wire is characterized in that one end is fixedly inserted into the remaining ports of the hybrid connector, excluding the port for measuring Ethernet performance, and the other end is fixed to the printed circuit board by soldering. Effects of the invention

[0019] According to the jig device for measuring the termination resistance of an Ethernet hybrid connector of the present invention, a printed circuit board connected to the hybrid connector via a wire is configured to be detachably mounted on a base plate in various directions by means of a detachable connection part, thereby aligning the wire to prevent twisting and improving the reliability of the termination resistance measurement. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view illustrating a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention. FIG. 2 is an exploded perspective view illustrating a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of a key part showing a detachable connection part in a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of a key part showing a state in which a plurality of printed circuit boards are stacked in a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention. FIG. 5 is an operational diagram showing a variable fixed position of a support plate in a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention. Specific details for implementing the invention

[0022] Hereinafter, an embodiment of a jig device for measuring the termination resistance of an Ethernet hybrid connector according to the present invention will be described with reference to the attached drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0023] Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0025] FIG. 1 is a perspective view illustrating a jig device for measuring termination resistance of an Ethernet hybrid connector according to an embodiment of the present invention, FIG. 2 is an exploded perspective view illustrating a jig device for measuring termination resistance of an Ethernet hybrid connector according to an embodiment of the present invention, FIG. 3 is a cross-sectional view illustrating a detachable connection part in a jig device for measuring termination resistance of an Ethernet hybrid connector according to an embodiment of the present invention, FIG. 4 is a cross-sectional view illustrating a state in which a plurality of printed circuit boards are stacked in a jig device for measuring termination resistance of an Ethernet hybrid connector according to an embodiment of the present invention, FIG. 5 is an operation diagram illustrating a state in which the fixed position of a support plate is varied in a jig device for measuring termination resistance of an Ethernet hybrid connector according to an embodiment of the present invention.

[0027] As illustrated in FIGS. 1 to 5, a jig device for measuring the termination resistance of an Ethernet hybrid connector according to one embodiment of the present invention includes a base plate (10), a printed circuit board (20), and a detachable connection part (30).

[0028] A hybrid connector (C) is positioned in the center of the base plate (10).

[0029] This base plate (10) serves to provide a space in which a printed circuit board (20) can be fixed and positioned in various directions through a detachable connection part (30).

[0030] Of course, the base plate (10) is shown in the drawing as a square plate with a constant thickness, but it is not limited to this and can be modified into various shapes.

[0031] And, the printed circuit board (20) is configured such that multiple boards are connected to the hybrid connector (C) via a wire (W) to process the termination resistor.

[0032] Here, one end of the wire (W) is fixedly inserted into the remaining ports of the hybrid connector (C), excluding the port for measuring Ethernet performance, and the other end is fixed to the printed circuit board (20) by soldering.

[0033] Of course, the printed circuit board (20) is shown in the drawing in the shape of a square plate with a constant thickness, but it is not limited to this and can be changed to various shapes.

[0034] Meanwhile, the detachable connection part (30) is configured to connect the printed circuit board (20) to the base plate (10) at various angles so that the wires (W) can be aligned.

[0035] That is, the detachable connection part (30) performs the function of variably fixing the position of the printed circuit board (20) on the base plate (10) so that the wiring direction of the wire (W) can be arranged at various angles centered on the hybrid connector (C).

[0036] To this end, the detachable connection part (30) may include a plurality of fastening holes (31) formed at set intervals on the base plate (10), a communication hole part (32a) formed to communicate with any one selected of the fastening holes (31), a support plate (32) that supports the printed circuit board (20) so as to be seated thereon, and a position fixing bolt (33) that is inserted into the communication hole part (32a) and fastened to the fastening hole part (31) so that the support plate (32) is fixed while seated on the base plate (10).

[0037] That is, when the support plate (32) is seated on the base plate (10) so that the communication hole (32a) communicates with one of the fastening holes (31), and then the position fixing bolt (33) is inserted into the communication hole (32a) and fastened to the fastening hole (31), the support plate (32) is pressed toward the base plate (10) by the tightening force of the position fixing bolt (33), thereby restricting rotation and positional movement.

[0038] At this time, the communication hole portion (32a) may include a first communication hole portion (32b) formed along the length direction of the support plate (32), a second communication hole portion (32c) formed along the width direction of the support plate (32) to communicate orthogonally with the first communication hole portion (3ba), and a third communication hole portion (32d) formed diagonally on the support plate (32) to communicate with the area where the first communication hole portion (32b) and the second communication hole portion (32c) are connected.

[0039] That is, since the first communication hole section (32b), the second communication hole section (32c), and the third communication hole section (32d) are interconnected in a state where their length directions are arranged in different directions, the position of the support plate (32) is adjusted after the position fixing bolt (33) is released from the fastening hole section (31) so as not to be separated, and then the position fixing bolt (33) is fully fastened to the fastening hole section (31), the fixed position of the support plate (32) relative to the base plate (10) can be varied.

[0040] Additionally, the printed circuit board (20) can be detachably fixed to the support plate (32) while spaced apart by the spacing fixing part (40).

[0041] Specifically, the spacing fixing part (40) includes a plurality of fixing holes (41) formed through the support plate (32) at set intervals, a support bolt (42) inserted so as to be fastened into the fixing holes (41) to support the printed circuit board (20) and having a coupling groove (42a) formed in a recessed portion in the portion supporting the printed circuit board (20), a through hole (43) formed at each corner portion of the printed circuit board (20) to communicate with the coupling groove (42a), and a coupling bolt (44) inserted into the through hole (43) to be fastened with the coupling groove (42a) to restrain the printed circuit board (20) to the support bolt (42).

[0042] At this time, a stacked connection groove (44a) may be formed in the connecting bolt (44) so ​​that another connecting bolt (44) can be inserted to be fastened.

[0043] That is, when the printed circuit board (20) is seated so as to be stackable on the connecting bolt (44) such that the stacking connection groove (44a) and the through hole (43) align, and another connecting bolt (44) is inserted into the through hole (43) and fastened to the stacking connection groove (44a), the printed circuit board (20) can be fixed so as to be restrained on the connecting bolt (44). Accordingly, since the printed circuit board (20) can be stacked in multiple layers, many wires (W) can be connected so as to be terminated so as not to twist.

[0045] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0046] Therefore, the true technical scope of protection of the present invention should be determined by the following patent claims. Explanation of the symbols

[0048] 10: Baseplate 20: Printed circuit board 30: Detachable connection part 31: Fastening hole part 32: Support plate 32a: Chimney hole 32b: First connecting hole section 32c: Second connecting hole section 32d: Third flue hole 33: Position fixing bolt 40: Separation fixing part 41: Fixing hole part 42: Support bolt 42a: Connecting groove 43: Through hole 44: Connecting bolt 44a: Laminated connection groove

Claims

Claim 1 A jig device for measuring the termination resistance of an Ethernet hybrid connector, comprising: a base plate having a hybrid connector positioned in the center; a plurality of printed circuit boards connected to the hybrid connector via wires to process termination resistance; and a detachable connection part that connects the printed circuit board to the base plate at various angles so as to allow alignment of the wires; wherein the detachable connection part includes a plurality of fastening holes formed at set intervals on the base plate, a communication hole formed in communication with any one selected of the fastening holes, a support plate that supports the printed circuit board so as to be seated thereon, and a position fixing bolt inserted into the communication hole to be fixed and fastened to the fastening hole so as to fix the support plate while seated on the base plate, and wherein one end of the wire is fixedly inserted into the remaining ports excluding the port for measuring Ethernet performance in the hybrid connector, and the other end is fixed to the printed circuit board by soldering.

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