JPH0565063U - Cable connection - Google Patents

Abstract

(57) [Abstract] [Purpose] To connect the cable to the board reliably and efficiently. [Structure] A pair of fixing portions 15 are mounted on both sides of a pattern 14 on a substrate 13. The fixed side portion 15 is provided with a tapered side surface portion 22, and the tapered side surface portion 22 is provided with a plurality of recesses 23. A pair of flat surface portions having a curved surface portion 17 having a substantially C-shaped cross section for holding the exposed conductor wire 2 at the end of the cable on the fixing portion 15 and a taper portion 20 extended to the opening side 18 of the curved surface portion 17. The lead wire holding portion 16 made of 19 is inserted. Conductor holding part 1
The locking portion 21 of 6 is locked in the concave portion 23 of the fixed portion 15, and the cable is connected. [Effect] Without requiring skill, a reliable connection can be achieved by simply inserting the wire holding portion 16 into the fixing portion 15, and the wire can be applied to any thickness of wire by changing the insertion distance. Moreover, it is highly reliable because it is difficult to pull out in the direction where external stress is likely to be applied.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable connector, and more particularly to a cable connector that can be easily connected to a board or the like.

[0002]

[Prior Art]

 Conventionally, when connecting cables such as wires and stranded wires on the board, soldering, crimping with a connector, etc., and screw tightening with a screw terminal block etc. have been used. For soldering, as shown in FIG. 4, the coating 1 at the end of the cable 7 was peeled off to expose the conductive wire 2, and the pattern 4 on the substrate 3 was connected by solder 5.

Further, in crimp connection using a connector, as shown in FIG. 5, a cable 7 is connected to a female connector 6 fixed on a substrate 3 so as to be connected to a pattern 4 on the substrate 3. The inserted male connector 8 was inserted and connected. For screw tightening connection using a screw terminal block or the like, for example, as shown in FIG. 6, the lead wire 2 of the cable 7 is connected to the screw terminal block 9 with the screw 10, and this is connected to the pattern 4 of the substrate 3. It was fixed with the screw 11 as described above.

[0004]

[Problems to be solved by the device]

 However, the connection by soldering was time-consuming and inefficient. Moreover, since it requires skill to perform the work, it is difficult to make a reliable connection, and the yield has deteriorated. In addition, the connection using a connector increases the number of members and requires a special tool for connection, resulting in an increase in cost.

Further, the connection by tightening the screw requires a storage portion for storing the screw, which requires a large space for connection, and in particular, the length of the screw 10 for connecting the cable 7 to the screw terminal block 9 must be secured. Inevitably, it becomes thicker in the vertical direction when mounted on the substrate, which is against the miniaturization of equipment. The present invention has been made to solve the above-mentioned drawbacks, requires no space, requires no special skill, and is capable of efficiently making a connection that is strong and reliable against stress. It is an object of the present invention to provide a cable connecting body which can be widely applied to different conductor thicknesses and shapes.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a cable connecting body of the present invention is a cable connecting body for connecting a cable to a conductor on a substrate, and has a substantially C-shaped cross section for holding an exposed conductor wire at the end of the cable. And a pair of symmetrical flat surface portions provided with a curved surface portion and a tapered portion and a locking portion projecting from the tapered portion, extending to both sides of the opening of the curved surface portion so as to contact the substrate. And a taper side surface portion that is mounted on the substrate so as to sandwich the conductor on the board and that abuts the taper portion of the conductor wire holding portion. And a pair of fixing parts having recesses for locking the locking parts of the parts.

[0007]

[Action]

 In a connection body for connecting a cable to a conductor formed on a board, a wire holding portion holding a wire of the cable is engaged with a pair of fixing parts fixed on the board for connection. The fixing portion has a tapered side surface portion that abuts the tapered portion provided on the conductor holding portion, and is fixed to the substrate so that they are symmetrically positioned with the conductor formed on the base plate interposed therebetween. The conductor can be easily connected by inserting the conductor holding portion holding the conductor into the fixed portion fixed to the substrate. The connection strength can be adjusted by changing the insertion distance.

[0008] The conductor holding portion reliably locks regardless of the thickness and shape of the conductor of the cable by adjusting the insertion distance to be inserted into the fixed portion, so that any cable connection is reliable. You can get a high one.

[0009]

【Example】

 An embodiment of the cable connecting body of the present invention will be described with reference to the drawings. The connector 12 of the cable shown in FIG. 1 is a connector for connecting a cable 7 such as a signal line to a pattern conductor 14 which is a conductor formed on a printed circuit board 13. The pattern conductor 14 is sandwiched between the pattern conductors 14. A pair of fixing portions 15 fixed on the printed circuit boards 13 on both sides of 14 and a conductive wire 2 exposed by peeling off the coating 1 at the end of the cable 7 and holding the conductive wire retained by the fixing portion 15. And part 16.

The conductive wire holding portion 16 is made of a conductor such as copper or iron, and holds the conductive wire 2 of the cable 7 and has a curved surface portion 17 having a substantially C-shaped cross section and a pair of opening sides 18 of the curved surface portion 17 which are opposed to each other. And a pair of flat portions 19 extending in the same direction. The curved surface portion 17 has a predetermined elasticity so that it can be applied even if the conductor wire 2 of the cable 7 has different shapes and thicknesses such as a twisted wire, a single wire, and a square wire, and the distance between the opening sides can be changed appropriately. The plane portions 19 respectively extending on both opening sides 18 of the curved surface portion 17 are adapted to be in contact with the pattern conductor 14 of the printed circuit board 13, and are provided with the tapered portions 20 so as to be symmetrical to each other. The taper portion 20 is provided with a locking portion 21 that is projected. Although the locking portion 21 is provided at the end portion of the tapered portion 20 in the drawing, the locking portion 21 is not limited to the end portion of the tapered portion 20 and may be provided at the center, for example. The locking portion 21 preferably has a shape that resists a force that moves in one direction and moves backward, and is formed in a triangular shape or the like.

The fixing portion 15 to which the conductive wire holding portion 16 is fixed can be formed of any material as long as it has strength to fix the conductive wire holding portion 16 and can be bonded to the printed circuit board 13. The pattern conductor 14 of 13 is placed on the printed circuit board 13 so as to sandwich it. Further, the taper side surface portion 22 that abuts the taper portion 20 of the wire holding portion 16 is provided, and the taper side surface portion 22 of the fixing portion 15 and the taper portion 20 of the wire holding portion 16 have the wire holding portion 16 inserted into the fixing portion 15. It has an easy shape. The tapered side surface portion 22 is provided with a recess 23 for locking the locking portion 21 of the conductor holding portion 16. A plurality of recesses 23 are provided at predetermined intervals so that the conductor holding portion 16 holding the conductor 2 can change the distance between the opening sides 18 of the curved surface portion 17 according to the thickness of the conductor 2 and adjust the gripping force of the conductor 2. . The fixing portion 15 adjusts the opening distance of the opening side 18 of the curved surface portion 17 of the conducting wire holding portion 16, and has a thickness such that the tapered portion 20 can be abutted and held so that the grasped conducting wire 2 can be loaded so as not to be pulled out. Therefore, the space factor in the vertical direction of the printed circuit board 13 can be extremely small.

In order to connect the cable 7 to the printed circuit board 13 by using the cable connecting body 12 having such a configuration, as shown in FIG. The conducting wire holding portion 16 is gripped by the curved surface portion 17. At this time, the conductor wire 2 is held loose as shown in FIG. After that, as shown in FIG. 3A, the wire holding portion 16 is inserted into the fixing portion 15. When the insertion distance is increased, the taper portion 20 of the wire holding portion 16 is loaded by the taper side surface portion 22 of the fixing portion 15, and the distance between the opening sides of the wire holding portion 16 becomes shorter as shown in FIG. 3B. The conductor 2 of the cable 7 is securely gripped by the curved surface portion 17. At this time, the locking portion 21 of the wire holding portion 16 is locked in the recess 23 of the fixed portion 15. Since the locking portion 21 has a strong resistance against the force in the direction opposite to the inserting direction, the wire holding portion 16 does not come out of the fixing portion 15. The flat surface portion 19 of the conductor holding portion 16 is surely brought into contact with the pattern conductor 14 on the printed circuit board 13 to be connected to the cable. By changing the distance at which the conductor holding portion 16 is inserted into the fixed portion, it is possible to connect any cable regardless of the thickness and shape of the conductor.

[0013]

[Effect of the device]

 As is clear from the above description, according to the cable connecting body of the present invention, the fixing portions are mounted on both sides of the conductor on the board, and the conductor holding portions holding the conductor wires of the cable are inserted into the fixing portions. Since it is locked to the fixed part, no special skill is required, there is no individual difference, and electrical and mechanical reliable and reliable connection can be made efficiently. Moreover, since the cable is firmly held against the direction in which the cable is easily loaded, it is highly reliable against external stress. Further, no special tool is required, and moreover, the space can be saved in the thickness direction, and the cost can be reduced.

Further, since it can be applied to a wide range of sizes regardless of the shape of the conducting wire, it can be adopted in various kinds.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a cable connecting body of the present invention.

FIG. 2 (a) is a front view showing a connecting method using the connecting body of the cable shown in FIG. (B) The side view which shows the connection method using the connection body of the cable shown in FIG.

FIG. 3 (a) is a front view showing a connection method using the connection body of the cable shown in FIG. (B) The side view which shows the connection method using the connection body of the cable shown in FIG.

FIG. 4 is a diagram showing a conventional cable connection method.

FIG. 5 is a diagram showing a conventional cable connection method.

FIG. 6 is a diagram showing a conventional cable connection method.

[Explanation of symbols]

 1- ・ Coating 2- ・ Conducting wire 7- ・ Cable 12- ・ Cable connector 13- ・ Substrate 14- ・Conductor 15 ・ ・ ・ ・ ・ ・ Fixing part 16 ・ ・ ・ ・ ・ ・ Conducting wire holding part 17 ・ ・ ・ ・ ・ ・ Curved surface part 18 ・ ・ ・ ・ Aperture side 19 ・ ・ ・ ・ ・ ・ ・ ・ Flat part 20 ・ ・.... Taper 21..Locking 22..Taper side 23..Concave

Claims (1)

[Scope of utility model registration request] 1. A cable connecting body for connecting a cable to a conductor on a substrate, wherein a curved surface portion having a substantially C-shaped cross section for holding an exposed conductor wire at an end of the cable, and both opening sides of the curved surface portion. And a pair of symmetrical flat surface portions provided with a taper portion and a locking portion protruding from the taper portion, and a conductor holding portion on the board. A tapered side surface portion that is placed on the substrate so as to sandwich the conductor and that abuts the tapered portion of the conductive wire holding portion, and a concave portion that locks the locking portion of the conductive wire holding portion on the tapered side surface portion. And a pair of fixing portions, and a cable connecting body.