Quick connection structure of spinning lead and circuit board

Abstract

A quick connection structure of a spinning lead and a circuit board comprises at least one spinning lead, at least one fork-shaped terminal and the circuit board. One end of the fork-shaped terminal is provided with a fork part. The circuit board is provided with at least one mounting hole, and the mounting hole penetrates through two opposite surfaces of the circuit board. During assembly, the spinning leads are sleeved into the jig, so that the spinning leads which are originally horizontally arranged in each channel are vertically arranged, then the fork-shaped terminals are pressed into the jig, so that the spinning leads are wrapped by the fork-shaped terminals, the fork-shaped terminals and the spinning leads are pressed into mounting holes of a circuit board, and through the guide of the fork-shaped terminals and the friction force of the outer side, the spinning leads can be quickly assembled. And the effects of easy press-in and difficult pull-out are achieved. The expansion force of the fork-shaped terminal left in the mounting hole generates friction force on the inner wall of the mounting hole, so that the mounted spinning lead can be effectively prevented from being drawn out, and the spinning lead and the circuit board can be connected, fixed and conducted.

Description

Technical Field

[0001] The utility model relates to a quick connection structure of a spinning lead and a circuit board, in particular to a connection structure which can connect the spinning lead and the circuit board and can be used for electric signal transmission. Background Art

[0002] The spinning lead is made of spinning thread and metal lead wound in a spiral manner, and has the characteristics of being retractable and conductive. If the spinning lead is applied to fabric, it can transmit signals from various parts of the body to the device center for processing without losing the retractable characteristics of the fabric, so it can be applied to products such as functional clothing. Generally, the connection between different carriers of electrical signals is achieved through welding, adding a metal medium between the conductors to transmit the electrical signal, but the spinning thread itself is not resistant to high temperatures. When there is a need to transmit electrical signals, it is necessary to develop a new and fast connection method. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a quick connection structure for a spinning lead and a circuit board in view of the deficiencies in the prior art, which can connect and conduct the spinning lead and the circuit board, and can avoid the use of solder while taking environmental protection into consideration. It can also be used to process materials that are not resistant to high temperatures, and can play a convenient and fast role, so as to facilitate use in mass production.

[0004] In order to solve the above-mentioned technical problems, the utility model provides a quick connection structure for a spinning lead and a circuit board, comprising: at least one spinning lead; at least one fork-shaped terminal, one end of the fork-shaped terminal having a fork portion, the fork portion being forked, and a accommodating space being formed in the fork portion; and a circuit board, the circuit board being provided with at least one mounting hole, the mounting hole passing through two opposite sides of the circuit board, the wire diameter of the spinning lead being smaller than the diameter of the mounting hole; wherein the spinning lead is accommodated in the accommodating space of the fork-shaped terminal, and the fork portion of the fork-shaped terminal and the spinning lead are pressed into the mounting hole of the circuit board, an interference fit is formed between the fork portion of the fork-shaped terminal and the mounting hole of the circuit board, and the spinning lead is clamped in the fork portion of the fork-shaped terminal, so that the spinning lead and the circuit board are connected and fixed.

[0005] Optionally, the fork is connected to a material strip, and a breaking line is provided between the fork and the material strip.

[0006] Optionally, the width of the accommodating space tapers inwardly, a guiding portion is formed at one end of the fork portion, the width of the guiding portion is smaller than the width of the fork portion, and the guiding portion is rounded.

[0007] Optionally, the diameter of the mounting hole is 0.7-1.1 mm, and the wire diameter of the spinning wire is 0.3-0.6 mm.

[0008] Optionally, there are multiple spinning leads, and the multiple spinning leads are arranged horizontally. The multiple spinning leads are pre-inserted into a channel of a jig so that the multiple spinning leads originally arranged horizontally are arranged vertically. The fork-shaped terminal is pressed into the jig so that the multiple spinning leads in the channel are covered by the fork of the fork-shaped terminal.

[0009] The beneficial effect of the utility model is that the quick connection structure of the spinning lead and the circuit board provided by the utility model comprises at least one spinning lead, at least one fork-shaped terminal and a circuit board. One end of the fork-shaped terminal has a fork portion, and a accommodating space is formed in the fork portion. At least one mounting hole is provided on the circuit board, and the wire diameter of the spinning lead is smaller than the diameter of the mounting hole. The spinning lead is accommodated in the accommodating space of the fork-shaped terminal, and the fork portion of the fork-shaped terminal and the spinning lead are pressed into the mounting hole of the circuit board, and an interference fit is formed between the fork portion of the fork-shaped terminal and the mounting hole of the circuit board. The spinning lead is clamped in the fork portion of the fork-shaped terminal, so that the spinning lead and the circuit board are connected and fixed. Therefore, the guiding of the fork-shaped terminal and the friction force on the outside can be utilized to achieve the effect of easy pressing in and difficult pulling out. The fork-shaped terminal left in the mounting hole, the friction force generated by its expansion force on the inner wall of the mounting hole can effectively prevent the installed spinning lead from being pulled out. The utility model can connect and conduct the spinning lead with the circuit board, and the assembly is fast and easy. Solder can be avoided and environmental protection can be taken into account. It can also be used to process materials that are not resistant to high temperatures, and can play a convenient and fast role, so as to facilitate use in mass production.

[0010] In order 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

[0011] Figure 1 It is a three-dimensional exploded view of the quick connection structure of the spinning lead and the circuit board of the utility model.

[0012] Figure 2 It is a schematic diagram of the spinning lead insertion fixture of the utility model.

[0013] Figure 3 It is a three-dimensional exploded view of the spinning lead and the fork-shaped terminal of the utility model.

[0014] Figure 4 This is a three-dimensional diagram of the spinning lead of the utility model being accommodated in the fork-shaped terminal.

[0015] Figure 5 A three-dimensional diagram (I) of the utility model of a fork-shaped terminal and a spinning lead pressed into a mounting hole of a circuit board.

[0016] Figure 6 A three-dimensional diagram (second) of the fork-shaped terminal of the utility model and the spinning lead being pressed into the mounting hole of the circuit board.

[0017] Figure 7 A three-dimensional diagram of the fork-shaped terminal and the spinning lead of the utility model being pressed into the mounting hole of the circuit board with the material strip broken.

[0018] Figure 8 The utility model is a cross-sectional view of a fork-shaped terminal and a spinning lead being pressed into a mounting hole of a circuit board with the material strip broken.

[0019] Fig. 9 The utility model is a flow chart of a method for quickly connecting a spinning lead and a circuit board. DETAILED DESCRIPTION

[0020] [Example]

[0021] See also Figure 1 The utility model provides a quick connection structure of a spinning lead and a circuit board, comprising at least one spinning lead 1, at least one fork-shaped terminal 2 and a circuit board 3.

[0022] The spinning lead 1 includes a spinning wire and a metal lead (not shown), which are wound in a spiral manner. The spinning lead 1 is a retractable and conductive spinning lead structure, and has retractable and conductive properties. Since the spinning lead 1 is a prior art and the present invention does not limit the structure of the spinning lead 1, it will not be described in detail. The number of the spinning leads 1 is not limited, and one or more spinning leads 1 can be provided. The present embodiment discloses that multiple spinning leads 1 are provided, and have a larger transmission capacity. Multiple spinning leads 1 are arranged horizontally and merged together in pairs, and two spinning leads 1 can be assembled together in the same mounting hole 31.

[0023] The fork-shaped terminal 2 is generally in the shape of a harpoon, and one end of the fork-shaped terminal 2 has a fork portion 21, and the fork portion 21 is forked, and a receiving space 22 is formed in the fork portion 21, which can be used to accommodate the spinning lead 1. Optionally, the width of the receiving space 22 gradually decreases inwardly, so that the spinning lead 1 can be gradually clamped when placed in the receiving space 22, and has an optional fixing and conducting effect.

[0024] The fork 21 can be connected to a material strip 23, and a break line 24 (such as Figure 1 As shown in the figure, the fork-shaped terminal 2 is connected to the material strip 23 so that the material strip 23 can be used to drive the fork-shaped terminal 2 to be assembled on the circuit board 3. After the fork portion 21 of the fork-shaped terminal 2 and the spinning lead 1 are pressed into the mounting hole 31 of the circuit board 3, the fork portion 21 and the material strip 23 can be broken and separated by the breaking line 24.

[0025] The end of the fork 21 away from the material strip 23 may form a guide portion 25, the width W1 of the guide portion 25 is smaller than the width W2 of the fork 21, and the guide portion 25 is rounded, which can provide an optional guiding effect, so that the fork 21 of the fork-shaped terminal 2 can be smoothly inserted into the mounting hole 31. A plurality of fork-shaped terminals 2 can be connected to each material strip 23, so that a plurality of spinning leads 1 can be installed in a plurality of mounting holes 31 of a circuit board 3 at one time by using a plurality of fork-shaped terminals 2, which is feasible for mass production, and the number of single installations can also be adjusted according to the number of mounting holes 31 of the circuit board 3.

[0026] The circuit board 3 may be a soft or hard circuit board, and at least one mounting hole 31 is provided on the circuit board 3. The mounting hole 31 may be a round hole, and the mounting hole 31 passes through two opposite sides of the circuit board 3. The number of the mounting holes 31 is not limited, and one or more mounting holes 31 may be provided. The present embodiment discloses that a plurality of mounting holes 31 are provided, and the plurality of mounting holes 31 are arranged at intervals. The plurality of mounting holes 31 respectively correspond to a plurality of spinning leads 1, and the plurality of mounting holes 31 may be arranged in a row to facilitate the connection and fixation of the spinning leads 1.

[0027] In this embodiment, the diameter D of the mounting hole 31 can be 0.7-1.1 mm, and the diameter D of the mounting hole 31 can be selected as 0.9 mm. The wire diameter d of the spinning lead 1 is smaller than the diameter D of the mounting hole 31, and the wire diameter d of the spinning lead 1 can be 0.3-0.6 mm, and the wire diameter d of the spinning lead 1 can be selected as 0.4-0.5 mm.

[0028] In this embodiment, multiple (for example, two) spinning leads 1 can be assembled together in the same mounting hole 31. During assembly, the multiple spinning leads 1 can be pre-inserted into a channel 51 of a fixture 5 (for example, Figure 2 As shown), the plurality of spinning leads 1 originally arranged horizontally in each channel 51 of the fixture 5 are arranged vertically, and then the fork-shaped terminal 2 is pressed in from top to bottom (as shown in FIG. Figure 3 and Figure 4 As shown), the spinning lead 1 is accommodated in the accommodating space 22 of the fork-shaped terminal 2, so that the spinning lead 1 is covered by the fork portion 21 of the fork-shaped terminal 2, and then the fork portion 21 of the fork-shaped terminal 2 and the spinning lead 1 are pressed into the mounting hole 31 of the circuit board 3 (as shown Figure 5 and Figure 6 As shown in the figure, the fork portion 21 of the fork-shaped terminal 2 and the mounting hole 31 of the circuit board 3 form an interference fit, and the fork-shaped terminal 2 is guided and the friction force on the outside is used to achieve the effect of easy pressing in and difficult pulling out. The inner wall of the mounting hole 31 of the circuit board 3 will push the fork portion 21 of the fork-shaped terminal 2, and the spinning lead 1 is clamped in the fork portion 21 of the fork-shaped terminal 2, so that the spinning lead 1 and the circuit board 3 are connected and fixed. In addition, the fork-shaped terminal 2 and the circuit board 3 can also be further fixed by glue, so that the fork-shaped terminal 2 and the circuit board 3 are more firmly combined.

[0029] Finally, the strip 23 of the entire row of fork-type terminals 2 is removed from the breaking line 24 of the fork-type terminals 2 (eg, Figure 7 and Figure 8 As shown in FIG. 1 , the fork-shaped terminal 2 left in the mounting hole 31 generates a friction force on the inner wall of the mounting hole 31 due to its expansion force, which can effectively prevent the installed spinning lead 1 from being pulled out.

[0030] See also Fig. 9 This embodiment further provides a method for quickly connecting a spinning lead and a circuit board, comprising the following steps:

[0031] First, provide at least one spinning lead 1, at least one fork-shaped terminal 2 and a circuit board 3 (such as Figures 1 to 8 The structures of the spinning lead 1, the fork-shaped terminal 2 and the circuit board 3 are the same as those in the above embodiment, so they will not be described in detail.

[0032] Then, the spinning lead 1 can be inserted into the channel 51 of the jig 5, so that the spinning lead 1 originally arranged horizontally in each channel 51 of the jig 5 can be arranged vertically, and then the fork-shaped terminal 2 is pressed in to accommodate the spinning lead 1 in the accommodating space 22 of the fork-shaped terminal 2, so that the spinning lead 1 is covered by the fork portion 21 of the fork-shaped terminal 2.

[0033] Then, the fork portion 21 of the fork-shaped terminal 2 and the spinning lead 1 are pressed into the mounting hole 31 of the circuit board 3, and an interference fit is formed between the fork portion 21 of the fork-shaped terminal 2 and the mounting hole 31 of the circuit board 3, and then the fork-shaped terminal 2 is guided and the friction force of the outer side is used to achieve the effect of easy pressing and difficult pulling out. The fork-shaped terminal 2 and the circuit board 3 can also be further fixed by dispensing glue.

[0034] Finally, the strip 23 of the entire row of fork-shaped terminals 2 is removed from the break line 24 of the fork-shaped terminals 2. The fork-shaped terminals 2 remaining in the mounting holes 31 generate frictional force on the inner wall of the mounting holes 31 due to their expansion force, preventing the installed spinning leads 1 from being pulled out. In this way, the connection and fixation between the spinning leads 1 and the circuit board 3 can be completed, and the spinning leads 1 and the circuit board 3 are electrically connected and can be used for electrical signal transmission.

[0035] [Beneficial Effects of Embodiments]

[0036] The beneficial effect of the utility model is that the quick connection structure of the spinning lead and the circuit board provided by the utility model includes at least one spinning lead, at least one fork-shaped terminal and a circuit board. One end of the fork-shaped terminal has a fork portion, and a accommodating space is formed in the fork portion. At least one mounting hole is provided on the circuit board, and the wire diameter of the spinning lead is smaller than the diameter of the mounting hole. The spinning lead is accommodated in the accommodating space of the fork-shaped terminal, and the fork portion of the fork-shaped terminal and the spinning lead are pressed into the mounting hole of the circuit board, and an interference fit is formed between the fork portion of the fork-shaped terminal and the mounting hole of the circuit board, so that the spinning lead and the circuit board are connected and fixed. Therefore, the guiding of the fork-shaped terminal and the friction force on the outside can be utilized to achieve the effect of easy pressing in and difficult pulling out. The fork-shaped terminal left in the mounting hole, the friction force generated by its expansion force on the inner wall of the mounting hole can effectively prevent the installed spinning lead from being pulled out. The utility model can connect and conduct the spinning lead with the circuit board, and the assembly is fast and easy. Solder can be avoided and environmental protection can be taken into account. It can also be used to process materials that are not resistant to high temperatures, and can play a convenient and fast role, so as to facilitate use in mass production.

[0037] However, 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 quick connection structure for a spinning lead and a circuit board, characterized in that: include: at least one spinning lead; At least one fork-shaped terminal, one end of the fork-shaped terminal has a fork portion, the fork portion is forked, and an accommodating space is formed in the fork portion; as well as A circuit board, wherein at least one mounting hole is provided on the circuit board, the mounting hole passes through two opposite sides of the circuit board, and the wire diameter of the spinning lead is smaller than the diameter of the mounting hole; The spinning lead is accommodated in the accommodating space of the fork-shaped terminal, and the fork portion of the fork-shaped terminal and the spinning lead are pressed into the mounting hole of the circuit board, an interference fit is formed between the fork portion of the fork-shaped terminal and the mounting hole of the circuit board, and the spinning lead is clamped in the fork portion of the fork-shaped terminal, so that the spinning lead and the circuit board are connected and fixed.

2. The quick connection structure of the spinning lead and the circuit board according to claim 1, characterized in that: The fork is connected to a material belt, and a breaking line is arranged between the fork and the material belt.

3. The quick connection structure of the spinning lead and the circuit board according to claim 1, characterized in that: The width of the accommodating space is gradually reduced inwards, and a guiding portion is formed at one end of the fork portion. The width of the guiding portion is smaller than the width of the fork portion, and the guiding portion is rounded.

4. The quick connection structure of the spinning lead and the circuit board according to claim 1, characterized in that: The diameter of the mounting hole is 0.7-1.1 mm, and the wire diameter of the spinning lead is 0.3-0.6 mm.

5. The quick connection structure of the spinning lead and the circuit board according to claim 1, characterized in that: There are multiple spinning leads, which are arranged horizontally. The multiple spinning leads are pre-inserted into a channel of a jig so that the multiple spinning leads originally arranged horizontally are arranged vertically. The fork-shaped terminal is pressed into the jig so that the multiple spinning leads in the channel are covered by the fork of the fork-shaped terminal.

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