Spinning wire and circuit board connecting method

Abstract

A spinning wire and circuit board connecting method comprises the steps that at least one spinning wire, gum and a circuit board are provided, at least one through hole is formed in the circuit board, and the diameter D of the through hole, the wire diameter d of the spinning wire, the wire diameter dmin of the spinning wire after being stretched and shrunk and the thickness t of a jig meet the following relational expression: 2dgt; dgt; 2dmin + t; the spinning wire is placed on the back glue, then the spinning wire with the back glue is aligned with the through hole of the circuit board, and a jig penetrates through the back glue to extrude the spinning wire into and penetrate through the through hole; when the jig is taken out, the spinning wire rebounds and expands due to no stretching, so that the spinning wire is prevented from retreating along with the jig; an insulating wire can penetrate through the center of the round-hole-shaped protruding line segment to serve as a tensile supporting line, and back glue can be hot-pressed and fixed on the two faces of the circuit board respectively, so that the spinning wire and the circuit board are connected and fixed. Therefore, the spinning lead and the circuit board can be connected, fixed and conducted, soldering tin is not needed, and environmental protection is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and more particularly to a method for connecting a spinning conductor and a circuit board, and more particularly to a method for connecting the spinning conductor and the circuit board for transmitting electrical signals. Background Art

[0002] The spinning conductor is made of spinning yarn and metal wire wound in a spiral manner, and has the characteristics of being stretchable and conductive. The spinning conductor can be used as a way to connect devices, and then the devices are placed on the circuit board to form a stretchable system that can transmit electrical signals. If applied to fabric, signals from various parts of the body can be transmitted to the device center for processing without losing the stretchability of the fabric. The general method of connecting electrical signals is achieved through welding, adding a metal medium between the conductors to transmit electrical signals, but the spinning wire itself is not resistant to high temperatures, so when there is a need to transmit electrical signals, new connection methods must be developed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for connecting a spinning conductor and a circuit board in view of the deficiencies in the prior art, which can make the spinning conductor and the circuit board connected, fixed and conductive, and can avoid the use of solder while taking environmental protection into consideration, and can also be used to process materials that are not resistant to high temperatures (tin melting temperature).

[0004] In order to solve the above technical problems, the present invention provides a method for connecting a spinning conductor and a circuit board, comprising the steps of: providing at least one spinning conductor, a backing adhesive and a circuit board, wherein the circuit board is provided with at least one through hole, wherein the through hole penetrates two opposite sides of the circuit board, wherein the diameter of the through hole is defined as D, the wire diameter of the spinning conductor is defined as d, and the wire diameter of the spinning conductor after contraction when stretched is defined as dmin, wherein a jig has a jig thickness t, which meets the following relationship: 2d>D>2dmin+t; placing the spinning conductor on the backing adhesive so that the backing adhesive is disposed on the spinning conductor; On one side of the wire, the spinning wire is aligned with the through hole of the circuit board, and the jig is used to pass through the adhesive along an assembly direction to squeeze the spinning wire into and through the through hole; the jig is taken out along a withdrawal direction, the spinning wire will generate friction and a positive force of pushing on an inner wall of the periphery of the through hole, and the part of the spinning wire passing through the through hole forms an expanded protruding line segment; and a fixed adhesive is bonded to one side of the circuit board, the fixed adhesive is bonded to the circuit board and the protruding line segment, so that the spinning wire and the circuit board are connected and fixed.

[0005] Preferably, the wire diameter of the spinning wire is 0.5-0.7 mm, and the wire diameter of the spinning wire after shrinking during stretching is 0.2-0.4 mm.

[0006] Preferably, at least one through-hole is formed on the backing adhesive, the through-hole corresponds to the through-hole, and the through-hole enables the jig to pass through the backing adhesive.

[0007] Preferably, one end of the jig has a clamping portion, the clamping portion is forked, and the clamping portion includes two clamping rods, a receiving groove is formed between the two clamping rods, the receiving groove can accommodate the spinning wire, and the spinning wire is clamped by the two clamping rods.

[0008] Preferably, a plurality of the spinning conductors are provided, the plurality of the spinning conductors are arranged at intervals, a plurality of the through holes are provided, the plurality of the through holes are arranged at intervals, and the plurality of the through holes are arranged in a row.

[0009] Preferably, the assembling direction is perpendicular to a side of the adhesive backing away from the spinning wire, and the withdrawal direction and the assembling direction are opposite directions.

[0010] Preferably, the spinning conductor and the circuit board are electrically connected.

[0011] Preferably, the circuit board and the adhesive backing are partially overlapped so that the circuit board and the adhesive backing are bonded together.

[0012] Preferably, the spinning conductor is a retractable and conductive spinning conductor structure.

[0013] Preferably, a conductive adhesive is provided between the spinning conductor and the circuit board to assist in fixation, or an insulating wire is inserted from the side of the protruding wire segment to prevent the protruding wire segment from being pulled out.

[0014] The beneficial effect of the present invention is that the connection method of the spinning conductor and the circuit board provided by the present invention mainly provides a through hole on the circuit board, defines the diameter of the through hole as D, the wire diameter of the spinning conductor as d, the wire diameter of the spinning conductor after shrinking when stretched as dmin, and the thickness of the jig as t, which meets the following relationship: 2d>D>2dmin+t; the yarn conductor is placed on the adhesive backing, and the jig is used to squeeze the spinning conductor into and through the through hole through the adhesive backing along the assembly direction; and then when the jig is taken out along the withdrawal direction, the spinning conductor will generate friction and positive force of pushing on an inner wall of the periphery of the through hole, and the part of the spinning conductor passing through the through hole forms an expanded circular hole-shaped protruding line segment, which can prevent the spinning conductor from withdrawing with the jig. The fixed adhesive backing is bonded to the circuit board and the protruding line segment, so that the protruding line segment is more solid and not easy to be pulled out, so that the spinning conductor and the circuit board are connected and fixed. The present invention can make the spinning conductor and the circuit board connected, fixed and conductive, and the assembly is fast and easy, and solder can be avoided while taking environmental protection into consideration, and it can also be used to process materials that are not resistant to high temperatures.

[0015] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only provided for reference and explanation and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a flow chart of the method for connecting a spinning conductor and a circuit board according to the present invention.

[0017] Figure 2 It is a three-dimensional exploded view of the spinning conductor and the circuit board of the present invention.

[0018] Figure 3 It is a three-dimensional combination diagram of the spinning conductor and the circuit board of the present invention.

[0019] Figure 4 It is a three-dimensional combination diagram of the spinning conductor and the circuit board of the present invention from another angle.

[0020] Figure 5 The first is an action diagram of the method for connecting a spinning conductor and a circuit board according to the present invention.

[0021] Figure 6 The second is an action diagram of the method for connecting a spinning conductor and a circuit board according to the present invention.

[0022] Figure 7 The third is an action diagram of the method for connecting a spinning conductor and a circuit board according to the present invention.

[0023] Figure 8 FIG4 is an action diagram of the method for connecting a spinning conductor and a circuit board according to the present invention.

[0024] Fig. 9 It is a three-dimensional diagram of another embodiment of the spinning conductor and circuit board of the present invention. DETAILED DESCRIPTION

[0025] [Example]

[0026] See also Figure 1 The present invention provides a method for connecting a spinning conductor and a circuit board, comprising the following steps:

[0027] First, provide at least one spinning wire 1, a backing adhesive 2 and a circuit board 3 (such as Figures 2 to 4The spinning conductor 1 includes a spinning wire and a metal conductor (not shown), which are wound in a spiral manner. The spinning conductor 1 is a retractable and conductive spinning conductor structure, and has the characteristics of being retractable and conductive. Since the spinning conductor 1 is a prior art and the present invention does not limit the structure of the spinning conductor 1, it will not be described in detail. The number of the spinning conductors 1 is not limited, and one or more spinning conductors 1 can be provided. This embodiment discloses that multiple spinning conductors 1 are provided, and have a larger transmission capacity, and the multiple spinning conductors 1 are arranged at intervals.

[0028] The adhesive 2 is elastic and becomes colloid and sticky when heated, so that it can be combined with the spinning wire 1 and can be printed on the fabric, so that the fabric can provide electrical signal transmission function while maintaining its stretching properties. The circuit board 3 is a circuit board with bendable properties, suitable for use in an environment without specific support.

[0029] The circuit board 3 can be a soft or hard circuit board. The circuit board 3 is provided with at least one through hole 31. The through hole 31 is a round hole. The through hole 31 passes through two opposite sides of the circuit board 3. The number of the through holes 31 is not limited. One or more through holes 31 can be provided. The present embodiment discloses that a plurality of through holes 31 are provided. The plurality of through holes 31 are arranged at intervals. The plurality of through holes 31 correspond to the plurality of spinning conductors 1 respectively. The plurality of through holes 31 can be arranged in a row to facilitate the connection and fixation of the spinning conductors 1. The diameter of the through hole 31 is defined as D (e.g. Figure 5 As shown), the wire diameter of the spinning wire 1 is d, and the wire diameter of the spinning wire 1 after shrinking when stretched is dmin (as shown Figure 6 As shown), a fixture 4 has a fixture thickness t (as shown Figure 5 As shown), the following relationship is met: 2d>D>2dmin+t. The present invention can achieve an optimized match between the wire diameter d of the spinning wire 1, the wire diameter dmin of the spinning wire 1 after shrinking when stretched, and the diameter D of the through hole 31. Preferably, the wire diameter d of the spinning wire 1 is 0.5-0.7 mm, and the best is 0.6 mm. The wire diameter dmin of the spinning wire 1 after shrinking when stretched is 0.2-0.4 mm, and the best is 0.3 mm. The spinning wire 1 and the circuit board 3 can be smoothly connected and fixed, and have a better fixing effect, but it is not limited.

[0030] Then place the spinning wire 1 on the adhesive 2 (such as Figure 5 As shown), the adhesive backing 2 is disposed on one side of the spinning conductor 1, and the spinning conductor 1 with the adhesive backing 2 is aligned with the through hole 31 of the circuit board 3, and a jig 4 is used to penetrate the adhesive backing 2 along an assembly direction A to squeeze part of the spinning conductor 1 into and through the through hole 31 (as shown in FIG. Figure 6As shown in FIG. 1 , the assembly direction A is preferably perpendicular to the side of the adhesive backing 2 away from the spinning wire 1. At least one through-hole 21 may be formed on the adhesive backing 2, and the through-hole 21 corresponds to the through-hole 31. The through-hole 21 allows the jig 4 to pass through the adhesive backing 2. The through-hole 21 may be formed or pre-set when the jig 4 passes through the adhesive backing 2. The spinning wire 1 will reduce its wire diameter due to stretching. The wire diameter of the spinning wire 1 after shrinking when stretched is dmin, making it easier for the spinning wire 1 to pass through the through-hole 31.

[0031] In this embodiment, one end of the jig 4 has a clamping portion 41, and the clamping portion 41 is forked. The clamping portion 41 can quickly clamp the spinning wire 1 so as to squeeze the spinning wire 1 into the through hole 31, and the clamping portion 41 can also quickly separate from the spinning wire 1. Preferably, the clamping portion 41 includes two clamping rods 411 (such as Figure 2 As shown in FIG. 1 , a receiving groove 412 is formed between the two clamping rods 411, and the receiving groove 412 can be used to accommodate the spinning wire 1, and the two clamping rods 411 can clamp the spinning wire 1, so that the spinning wire 1 can be quickly clamped or separated from the spinning wire 1. The circuit board 3 can be partially overlapped with the backing adhesive 2, so that the circuit board 3 and the backing adhesive 2 are bonded, and a better fixing effect is achieved.

[0032] Then take out the fixture 4 along an exit direction B (such as Figure 7 As shown in FIG. 1 ), the withdrawal direction B and the assembly direction A can be opposite directions, so that the jig 4 can be taken out more smoothly. The withdrawal direction B is preferably perpendicular to the side of the adhesive backing 2 away from the spinning wire 1. At this time, the spinning wire 1 will rebound and expand due to the lack of stretching. The spinning wire 1 will generate friction and positive force of pushing on an inner wall 311 at the periphery of the through hole 31, and the part of the spinning wire 1 passing through the through hole 31 forms an expanded circular hole-shaped protruding line segment 11, which can play a fixing effect. The protruding line segment 11 can be in a ring shape (such as Figure 7 and Figure 8 As shown), the protruding line segment 11 can prevent the spinning wire 1 from being withdrawn together with the jig 4.

[0033] In addition, glue can be further applied between the spinning conductor 1 and the circuit board 3 for fixation, that is, conductive glue 6 (such as conductive silver glue, etc.) can be set between the spinning conductor 1 and the circuit board 3 to assist in fixation, so that the spinning conductor 1 and the circuit board 3 have better conductivity and fixation effects.

[0034] Finally, a fixing adhesive 5 (such as Figure 8As shown in the figure, the fixing adhesive 5 is bonded to the circuit board 3 and the protruding line segment 11, making the protruding line segment 11 more solid and not easy to be pulled out, so that the spinning wire 1 and the circuit board 3 are connected and fixed, and an electrical connection can be achieved. The metal wire of the spinning wire 1 can contact the circuit of the circuit board 3 to achieve an electrical connection. The adhesive 2 can also be bonded and fixed to the spinning wire 1 and the circuit board 3 by hot pressing or the like. Hot pressing a piece of adhesive (adhesive 2 and fixing adhesive 5) on the upper and lower sides helps to fix the spinning wire 1 on the circuit board 3.

[0035] In addition, Fig. 9 As shown, in the present embodiment, another structure for fixing the protruding wire segment 11 is proposed. The fixing method is that after part of the spinning wire 1 passes through the through hole 31 of the circuit board 3 to form the protruding wire segment 11, an insulating wire 7 (such as a plastic wire) is inserted from the side of the protruding wire segment 11. The insulating wire 7 passes through the center of the circular hole-shaped protruding wire segment 11 as a support wire to prevent the protruding wire segment 11 from being pulled out, so that the spinning wire 1 and the circuit board 3 are connected and fixed, and an electrical connection can be achieved.

[0036] [Beneficial Effects of Embodiments]

[0037] The beneficial effect of the present invention is that the connection method of the spinning conductor and the circuit board provided by the present invention mainly provides a through hole on the circuit board, defines the diameter of the through hole as D, the wire diameter of the spinning conductor as d, the wire diameter of the spinning conductor after shrinking when stretched as dmin, and the thickness of the jig as t, which meets the following relationship: 2d>D>2dmin+t; the yarn conductor is placed on the adhesive backing, and the jig is used to squeeze the spinning conductor into and through the through hole through the adhesive backing along the assembly direction; and then when the jig is taken out along the withdrawal direction, the spinning conductor will generate friction and positive force of pushing on an inner wall of the periphery of the through hole, and the part of the spinning conductor passing through the through hole forms an expanded circular hole-shaped protruding line segment, which can prevent the spinning conductor from withdrawing with the jig. The fixed adhesive backing is bonded to the circuit board and the protruding line segment, so that the protruding line segment is more solid and not easy to be pulled out, so that the spinning conductor and the circuit board are connected and fixed. The present invention can make the spinning conductor and the circuit board connected, fixed and conductive, and the assembly is fast and easy, and solder can be avoided while taking environmental protection into consideration, and it can also be used to process materials that are not resistant to high temperatures.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the patent protection scope of the present invention. Therefore, all equivalent changes made using the contents of the present invention's specification and drawings are also included in the scope of protection of the present invention and are hereby stated.

Claims

1. A method for connecting a spinning conductor and a circuit board, characterized in that: Includes steps: Provide at least one spinning wire, a backing adhesive and a circuit board, wherein the circuit board is provided with at least one through hole, the through hole penetrates two opposite sides of the circuit board, the diameter of the through hole is defined as D, the wire diameter of the spinning wire is defined as d, the wire diameter of the spinning wire after contraction when stretched is defined as dmin, and a jig has a jig thickness t, which meets the following relationship: 2d>D>2dmin+t; Placing the spinning wire on the adhesive backing so that the adhesive backing is disposed on one side of the spinning wire, aligning the spinning wire with the through hole of the circuit board, and using the jig to pass through the adhesive backing along an assembly direction to squeeze the spinning wire into and through the through hole; The jig is taken out along a withdrawal direction, and the spinning wire generates friction and a positive force of pushing on an inner wall of the periphery of the through hole, and the portion of the spinning wire passing through the through hole forms an expanded circular hole-shaped protruding line segment; as well as A fixing adhesive is bonded to one side of the circuit board, and the fixing adhesive is bonded to the circuit board and the protruding line segment, so that the spinning conductor and the circuit board are connected and fixed.

2. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: The wire diameter of the spinning wire is 0.5-0.7 mm, and the wire diameter of the spinning wire after shrinking during stretching is 0.2-0.4 mm.

3. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: At least one through hole is formed on the back adhesive, the through hole corresponds to the through hole, and the through hole allows the jig to pass through the back adhesive.

4. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: One end of the jig has a clamping portion, which is in a forked shape and includes two clamping rods. A receiving groove is formed between the two clamping rods. The receiving groove can accommodate the spinning conductor, and the spinning conductor is clamped by the two clamping rods.

5. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: There are a plurality of spinning conductors, which are arranged at intervals; there are a plurality of through holes, which are arranged at intervals; and the through holes are arranged in a row.

6. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: The assembling direction is perpendicular to a side of the back adhesive away from the spinning wire, and the withdrawal direction and the assembling direction are two opposite directions.

7. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: The spinning conductor and the circuit board are electrically connected.

8. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: The circuit board is partially overlapped with the adhesive backing, so that the circuit board and the adhesive backing are bonded together.

9. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: The spinning conductor is a retractable and conductive spinning conductor structure.

10. The method for connecting a spinning conductor and a circuit board according to claim 1, characterized in that: Conductive glue is provided between the spinning conductor and the circuit board to assist in fixing, or an insulating wire is inserted from the side of the protruding line segment to prevent the protruding line segment from being drawn out.

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