Connecting structure of spinning wire and circuit board

Abstract

A connecting structure of a spinning wire and a circuit board comprises at least one spinning wire, gum and the circuit board. The spinning wire comprises a spinning yarn and a metal wire, and the back glue can be combined with the spinning wire. A through hole is formed in a circuit board, and the diameter D of the through hole, the wire diameter d of a spinning wire, the wire diameter dmin after the spinning wire is stretched and contracted and the thickness t of the jig meet the following relational expression: 2dgt; dgt; 2dmin + t. During assembly, the spinning wire with gum can be aligned with the through hole of the circuit board, the part of the spinning wire is squeezed into and penetrates through the through hole by a jig, the part, penetrating through the through hole, of the spinning wire forms an expanded round-hole-shaped protruding line segment, the spinning wire can generate friction force and forward pushing force on the inner wall of the periphery of the through hole, and the expanded protruding line segment is not prone to deformation. The spinning guide line can be prevented from retreating along with the jig. And the fixing back adhesive is adhered to the circuit board and the protruding line segments. 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 in particular to a connection structure of a spinning conductor and a circuit board, and more particularly to a connection structure that can connect the spinning conductor and the circuit board and can be used for electrical signal transmission. 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 connection structure between a spinning conductor and a circuit board in view of the deficiencies in the prior art, which can connect and conduct the spinning conductor and the circuit board, 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-mentioned technical problems, the present invention provides a connection structure of a spinning conductor and a circuit board, comprising: at least one spinning conductor; a backing adhesive; and a circuit board, wherein the circuit board is provided with at least one through hole, the through hole passes through two opposite sides of the circuit board, the diameter of the through hole is defined as D, the wire diameter of the spinning conductor is d, the wire diameter of the spinning conductor after shrinking when stretched is dmin, and a jig has a jig thickness t, which meets the following relationship: 2d>D>2dmin+t; wherein the spinning conductor is placed on the backing adhesive, so that the backing adhesive is arranged on one side of the spinning conductor, the spinning conductor is aligned with the through hole of the circuit board, part of the spinning conductor is squeezed into and passes through the through hole by the jig, the part of the spinning conductor passing through the through hole forms an expanded circular hole-shaped protruding line segment, and a fixed backing adhesive is bonded to one side of the circuit board, the fixed backing 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.

[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, the spinning wire and the backing glue form a spinning wire group, and the two spinning wire groups can be contacted and combined with each other by the backing glue, and the spinning wires of the two spinning wire groups are in contact with each other and are connected.

[0007] Preferably, at least one through hole is formed on the back adhesive, and the through hole corresponds to the through hole.

[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 spinning conductor and the circuit board are electrically connected.

[0010] Preferably, the circuit board and the adhesive backing are partially overlapped so that the circuit board and the adhesive backing are bonded together.

[0011] Preferably, the spinning conductor is a retractable and conductive spinning conductor structure.

[0012] Preferably, conductive glue is provided between the spinning conductor and the circuit board to assist in fixation.

[0013] Preferably, 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 structure of the spinning wire and the circuit board provided by the present invention includes a spinning wire, a backing adhesive and a circuit board. The circuit board is provided with a through hole, and the diameter of the through hole is defined as D. The wire diameter of the spinning wire is d. The wire diameter of the spinning wire after shrinking when stretched is dmin. The thickness of the jig is t, which meets the following relationship: 2d>D>2dmin+t. During assembly, the spinning wire with the backing adhesive can be aligned with the through hole of the circuit board, and part of the spinning wire can be squeezed into and passed through the through hole with the jig. The part of the spinning wire passing through the through hole forms an expanded circular hole-shaped protruding line segment. The spinning wire will generate friction and a positive force of pushing on the inner wall of the periphery of the through hole, and the expanded protruding line segment can prevent the spinning wire from withdrawing together with the jig. The fixed backing adhesive is bonded to the circuit board and the protruding line segment, making the protruding line segment more solid and not easy to be pulled out, so that the spinning wire and the circuit board are connected and fixed. The invention can connect and conduct the spinning conductor with the circuit board, and the assembly is quick and easy. Solder can be avoided and environmental protection is taken into consideration. The invention can also be used for processing 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 It is a three-dimensional exploded view of the connection structure of the spinning conductor and the circuit board of the present invention.

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

[0018] Figure 3 It is a three-dimensional view of the connection structure of the spinning conductor and the circuit board of the present invention from another angle.

[0019] Figure 4 The first is a schematic assembly diagram of the connection structure of the spinning conductor and the circuit board of the present invention.

[0020] Figure 5 This is a schematic assembly diagram of the connection structure of the spinning conductor and the circuit board of the present invention (II).

[0021] Figure 6 The third is a schematic assembly diagram of the connection structure of the spinning conductor and the circuit board of the present invention.

[0022] Figure 7 Schematic diagram of the assembly of the connection structure of the spinning conductor and the circuit board of the present invention (IV).

[0023] Figure 8 It is a three-dimensional exploded view of the connection of two spinning conductor groups of the present invention.

[0024] Fig. 9 It is a three-dimensional combination diagram of the connection of two spinning conductor groups of the present invention.

[0025] Fig.10 It is a three-dimensional diagram of another embodiment of the connection structure of the spinning conductor and the circuit board of the present invention. DETAILED DESCRIPTION

[0026] [Example]

[0027] See also Figures 1 to 3 The present invention provides a connection structure of a spinning conductor and a circuit board, comprising at least one spinning conductor 1, a backing adhesive 2 and a circuit board 3. The spinning conductor 1 comprises 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 a plurality of spinning conductors 1 are provided, and have a larger transmission capacity, and the plurality of spinning conductors 1 are arranged at intervals.

[0028] The adhesive backing 2 is elastic and becomes colloid and sticky when heated, so that it can be combined with the spinning wire 1 and can be embossed on the fabric, so that the fabric can provide the function of transmitting electrical signals while maintaining its stretching properties.

[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 4 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 5 As shown), a fixture 4 has a fixture thickness t (as shown Figure 4 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] During assembly, the spinning wire 1 can be placed on the adhesive backing 2 (such as Figure 4 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 the jig 4 can be used to penetrate the adhesive backing 2 to squeeze part of the spinning conductor 1 into and through the through hole 31 (as shown in FIG. Figure 5 As shown). At least one perforation 21 may be formed on the adhesive backing 2, and the perforation 21 corresponds to the through hole 31. The perforation 21 allows the jig 4 to pass through the adhesive backing 2. The perforation 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 stretching is dmin, so that the spinning wire 1 can pass through the through hole 31 more easily, so as to quickly complete the assembly.

[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 1As 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 the fixture 4 (such as Figure 6 As shown in FIG. 1 , the spinning wire 1 will rebound and expand due to the lack of stretching, and 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 portion of the spinning wire 1 passing through the through hole 31 forms an expanded protruding line segment 11, which can play a fixing effect. The protruding line segment 11 can be in the shape of a ring (as shown in FIG. Figure 6 and Figure 7 As shown), the protruding line segment 11 can prevent the spinning wire 1 from being withdrawn together with the jig 4, so as to achieve a fixing effect.

[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] One side of the circuit board 3 is bonded with a fixing adhesive 5 (such as Figure 7 As 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 means of heat pressing or the like.

[0035] In addition, Figure 8 and Fig. 9 As shown, the spinning wire 1 and the adhesive backing 2 can form a spinning wire group 100, and the two spinning wire groups 100 can contact each other with the adhesive backing 2, and can be pressed by a pressing mechanism (not shown), so that the adhesive backing 2 of the two spinning wire groups 100 are combined with each other, and the spinning wire 1 exposes one side of the adhesive backing 2, so that the spinning wires 1 of the two spinning wire groups 100 can contact each other and conduct, and the spinning wires 1 of the two spinning wire groups 100 are connected, so that the two spinning wire groups 100 are electrically connected. In this way, the two spinning wires 1 can be connected, and solder can be avoided, and materials that are not resistant to high temperatures (melting temperature) can also be processed.

[0036] In addition, Fig.10As 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 conductor 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 circular hole-shaped 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 conductor 1 and the circuit board 3 are connected and fixed, and an electrical connection can be achieved.

[0037] [Beneficial Effects of Embodiments]

[0038] The beneficial effect of the present invention is that the connection structure of the spinning wire and the circuit board provided by the present invention includes a spinning wire, a backing adhesive and a circuit board. The circuit board is provided with a through hole, and the diameter of the through hole is defined as D. The wire diameter of the spinning wire is d. The wire diameter of the spinning wire after shrinking when stretched is dmin. The thickness of the jig is t, which meets the following relationship: 2d>D>2dmin+t. During assembly, the spinning wire with the backing adhesive can be aligned with the through hole of the circuit board, and part of the spinning wire can be squeezed into and passed through the through hole with the jig. The part of the spinning wire passing through the through hole forms an expanded circular hole-shaped protruding line segment. The spinning wire will generate friction and a positive force of pushing on the inner wall of the periphery of the through hole, and the expanded protruding line segment can prevent the spinning wire from withdrawing together with the jig. The fixed backing adhesive is bonded to the circuit board and the protruding line segment, making the protruding line segment more solid and not easy to be pulled out, so that the spinning wire and the circuit board are connected and fixed. The invention can connect and conduct the spinning conductor with the circuit board, and the assembly is quick and easy. Solder can be avoided and environmental protection is taken into consideration. The invention can also be used for processing materials that are not resistant to high temperatures.

[0039] 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 connection structure of a spinning conductor and a circuit board, characterized in that: include: at least one spinning wire; One adhesive backing; as well as A circuit board, wherein at least one through hole is provided on the circuit board, 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 wire is defined as d, the wire diameter of the spinning wire after contraction during stretching is defined as dmin, and a jig has a jig thickness t, which meets the following relationship: 2d>D>2dmin+t; The spinning wire is placed on the adhesive backing so that the adhesive backing is arranged on one side of the spinning wire, the spinning wire is aligned with the through hole of the circuit board, part of the spinning wire is squeezed into and passed through the through hole by the jig, the part of the spinning wire passing through the through hole forms an expanded circular hole-shaped protruding line segment, and a fixed adhesive backing is adhered to one side of the circuit board, the fixed adhesive backing is adhered to the circuit board and the protruding line segment, so that the spinning wire and the circuit board are connected and fixed.

2. The connection structure of the spinning conductor and the 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 connection structure of the spinning conductor and the circuit board according to claim 1, characterized in that: The spinning wire and the back glue form a spinning wire group. The two spinning wire groups can be contacted and combined with each other by the back glue, and the spinning wires of the two spinning wire groups are contacted and connected with each other.

4. The connection structure of the spinning conductor and the circuit board according to claim 1, characterized in that: At least one through hole is formed on the back adhesive, and the through hole corresponds to the through hole.

5. The connection structure of the spinning conductor and the 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 connection structure of the spinning conductor and the circuit board according to claim 1, characterized in that: The spinning conductor and the circuit board are electrically connected.

7. The connection structure of 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.

8. The connection structure of 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.

9. The connection structure of 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.

10. The connection structure of the spinning conductor and the circuit board according to claim 1, characterized in that: An insulating wire is inserted from the side of the protruding wire segment to prevent the protruding wire segment from being drawn out.

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