TWM599467U - Flexible electrical connection wire - Google Patents

Abstract

A flexible electrical connection wire includes a flexible wire body and a connecting port. The flexible wire body has a connecting end. The flexible wire body includes a cylindrical elastic body and a wire layer. The wire layer has conductive wires and fibers. The conductive wires are entangled with the fiber. The conductive wires surround the cylindrical elastic body in a spiral form. The fibers surround the conductive wires. The conductive wires extend out of the connecting end. The conductive wires of the flexible wire body are connected to the connecting port.

Description

Telescopic cable

The present disclosure relates to a telescopic electrical connection cable, especially for connecting two electronic devices.

With the advancement of science and technology, the Internet of Things has become increasingly developed, and various portable electronic devices have appeared in the world. In addition to signal transmission through a wireless network, another common method is to implement transmission between two electronic devices through a cable.

Most of the traditional cables do not have the characteristics of expansion and contraction, so that when the cable is pulled, it is easy to damage the internal wires or cause poor contact of the output terminals connected to the wires, which affects the performance of the overall transmission function of the cable.

One aspect of this disclosure relates to a telescopic electrical connection line.

According to an embodiment of the present disclosure, a retractable electrical connection line includes a retractable body and a connection port. The telescopic body has a connecting end. The telescopic body includes a cylindrical elastic body and a core layer. The core layer has plural wires and plural fibers dimension. The wire is entangled with the fiber. The wires and fibers spirally surround the cylindrical elastic body. The wire extends out of the connection end. The wire of the telescopic body is connected to the connection port.

In one or more embodiments, the telescopic body further includes a protective layer. The wire, fiber and protective layer entangled with the stretchable wire body sequentially cover the cylindrical elastic body from the inside to the outside.

In one or more embodiments, the stretchable wire body further includes a protective layer fixing structure. The fixing structure is arranged on the telescopic wire body and adjacent to the fixing position of the connecting end, so that the cylindrical elastic body and the core wire layer are relatively stationary with each other at the fixing position.

In some embodiments, the fixed position on the telescopic wire body refers to a position between 1 mm and 15 mm away from the connecting end.

In some embodiments, the fixing structure on the telescopic body surrounds the cylindrical elastic body, the wires and the fibers of the telescopic body. The fixing structure includes a metal structure, a plastic structure or an adhesive layer.

In some embodiments, the fixing structure is a metal belt. The metal belt is arranged at a fixed position and surrounds the telescopic wire body, so that the cylindrical elastic body and the core wire layer are stationary with each other inside the metal belt.

In some embodiments, the stretchable wire body further includes a protective layer surrounding the cylindrical elastic body and the core wire layer. The metal band further surrounds the protective layer.

In one or more embodiments, the telescopic electrical connection port includes a circuit board and a housing. The circuit board is connected to the telescopic body. The circuit board contains solder joints and output parts. The shell accommodates the circuit board. The housing has an opening to expose the output part. The cylindrical elastic body extends from the connecting end. The circuit board is set in the extension Out of the front end of the cylindrical elastic body. The wires extend from the telescopic wire body and are respectively welded to the welding points on the circuit board.

In one or more embodiments, the connection port is a round terminal. The cylindrical elastic body extends from the connecting end. The round terminal is arranged at the front end of the extended cylindrical elastic body. The round terminal is electrically connected with the wire.

To sum up, the present disclosure realizes a telescopic electrical connection line with a stretchable length through the arrangement of a cylindrical elastic body and a wire wound spirally thereon. Through the setting of the fixed structure, the problem of poor contact caused by unexpected misalignment can be avoided.

The above descriptions are only used to illustrate the problems to be solved by the present disclosure, the technical means to solve the problems, and the effects they produce, etc. The specific details of the present disclosure will be described in detail in the following embodiments and related drawings.

100: Telescopic electrical connection line

110: Telescopic body

115: Cylinder elastomer

115c: depression

116: area

120: core layer

121: wire integration

1211: first wire

1212: second wire

1212A: second sub-wire

1212A1, 1212A2: sub-wire

1212B: second sub-wire

1212B1, 1212B2: sub-wire

1213: third wire

1213A, 1213B: third sub-wire

1214: Fourth wire

122, 123: Fiber

125: protective layer

126: Adhesive layer

130: metal belt

140: Anti-scratch tape

150A: Port

150B: Port

155: circuit board

156: Welding Point

157: output

160: shell

200: Telescopic electrical connection line

210: Telescopic body

215: Cylinder elastomer

220: core layer

225: protective layer

230: metal belt

250: round terminal

255: Solder joint

260: Casing

270: insulating rubber area

d: distance

R1: area

R2: area

R3: area

θ: included angle

The advantages and drawings of the present disclosure should be understood by the following embodiments and with reference to the accompanying drawings. The descriptions of these drawings are merely examples of implementations, and therefore should not be considered as limiting individual implementations or limiting the scope of the new patent application.

FIG. 1A shows a top view of a telescopic electrical connection line according to an embodiment of the present disclosure;

Figure 1B shows a schematic diagram of the expansion and contraction of the telescopic electrical connection line in Figure 1A;

Figure 2 is a cross-sectional exploded schematic view of the telescopic electrical connection line in Figure 1A in the region R1;

Figure 3 shows a schematic cross-sectional view of the telescopic electrical connection line in Figure 2 along the line L-L';

Fig. 4 shows a schematic diagram of the telescopic electrical connection line in Fig. 1A in the region R2 according to an embodiment of the present disclosure;

Figure 5 shows a schematic diagram of the telescopic electrical connection line in Figure 1A in the region R2 according to another embodiment of the present disclosure;

Fig. 6 shows a schematic diagram of the telescopic electrical connection line in Fig. 1A in the region R2 according to another embodiment of the present disclosure;

Fig. 7 shows a schematic diagram of the telescopic electrical connection line in Fig. 1A in the region R2 according to another embodiment of the present disclosure;

Figure 8 shows a top view of one end of a telescopic electrical connection line according to another embodiment of the present disclosure; and

Fig. 9 shows a schematic diagram of the telescopic electrical connection line in Fig. 8 inside the region R3.

The following is a detailed description of the embodiments with the accompanying drawings, but the provided embodiments are not used to limit the scope of the disclosure, and the description of the structure operation is not used to limit the order of its execution, any recombination of components The structure and the devices produced with equal effects are all covered by this disclosure. In addition, the drawings are for illustrative purposes only, and are not drawn according to the original dimensions. To facilitate understanding, the same or similar elements in the following description will be described with the same symbols.

In addition, the terms (terms) used in the entire specification and the scope of the patent application, unless otherwise specified, usually have the usual meaning of each term used in this field, in the content disclosed here, and in the special content . Some terms used to describe the present disclosure will be discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance on the description of the present disclosure.

Please refer to Figure 1A and Figure 1B. FIG. 1A shows a top view of the telescopic electrical connection line 100 according to an embodiment of the present disclosure. FIG. 1B is a schematic diagram showing the expansion and contraction of the telescopic electrical connection line 100 in FIG. 1A. As shown in the figure, the telescopic electrical connection cord 100 includes a telescopic body 110, a connection port 150A, and a connection port 150B. The connection port 150A and the connection port 150B are respectively located at two ends of the telescopic body 110, and each has a casing 160 for protecting the connection between the telescopic body 110 and the connection port 150A or 150B. The housing 160 has an opening so that the connection ports 150A and 150B can be exposed and connected to the outside. In this embodiment, the connection ports 150A and 150B are, for example, universal serial bus connection ports. As shown in Figure 1B, the telescopic wire body 110 of the present disclosure can be stretched so that in the direction in which the telescopic wire body 110 extends (as indicated by the arrow in Figure 1B), the length of the telescopic electrical connection wire 100 can be Changes.

To further illustrate the structure of the telescopic electrical connection line 100, please refer to Figs. 2 and 3. FIG. 2 shows a cross-sectional exploded schematic view of the telescopic electrical connection cord 100 in the region R1 in FIG. 1A, and specifically illustrates the composition of the telescopic body 110 of the telescopic electrical connection cord 100. Fig. 3 shows a schematic cross-sectional view of the telescopic electrical connection line 100 in Fig. 2 along the line L-L'.

As shown in FIG. 2, in this embodiment, the stretchable wire body 110 includes a cylindrical elastic body 115, a core wire layer 120 and a protective layer 125. In some embodiments, the cylindrical elastic body 115 is, for example, silicone. The core layer 120 includes a wire assembly 121 and a plurality of fibers 122 and 123. The wire assembly 121 refers to a general term for a plurality of wires wound around a cylindrical elastic body 115. Through these wires, the telescopic electrical connection wire 100 can be used to transmit data.

The wire assembly 121 is wound around the cylindrical elastic body 115 in a spiral shape. Specifically, the wires included in the wire assembly 121 include a first wire 1211, a second wire 1212, a third wire 1213, and a fourth wire 1214. These wires are closely arranged together, and these wires can also be composed of one or Multiple sub-wires to form. For example, the second wire 1212 includes second sub wires 1212A and 1212B, and the second sub wire 1212A is composed of the sub wires 1212A1 and 1212A2, and the second sub wire 1212B is composed of the sub wires 1212B1 and 1212B2. Similarly, the third wire 1213 includes third sub wires 1213A and 1213B. It may also be, for example, the fourth wire 1214, which is composed of only one wire. In some embodiments, the first wire 1211, the second wire 1212, the third wire 1213, and the fourth wire 1214 refer to wires with different functions. For details, please refer to the following description.

Returning to FIG. 2, as described above, the core layer 120 further includes a plurality of fibers 122. In Figure 2, for the purpose of simple description, only part of the fibers 122 are shown. In this embodiment, the fiber 122 is actually integrated around the wire 121 for protection, as shown in FIG. 3. Through the arrangement of the fiber 122, the first wire 1211 of the wire integrated 121 The second wire 1212, the third wire 1213, and the fourth wire 1214 can maintain the spiral structure without loosening.

When a force is applied to the extension direction of the telescopic wire body 110, the cylindrical elastic body 115 stretches in response to the force, and the first wire 1211, the second wire 1212, the third wire 1213, and the fourth wire 1214 of the integrated wire 121 Since the cylindrical elastic body 115 is wound in a spiral shape, the distance between the wire and the wire is increased, instead of winding the cylindrical elastic body 115 in a tight spiral, this corresponds to that the wire integration 121 can follow the cylindrical elastic body 115 Extend together.

In this embodiment, the wire assembly 121 is wound around the cylindrical elastic body 115 at an angle θ. In some embodiments. The included angle θ is less than 90 degrees, so that the wire integration 121 can have better ductility.

Please refer to FIG. 3, which can better confirm the cross-sectional schematic diagram of the stretchable wire body 110 along the line segment L-L'. For the purpose of simple description, the protective layer 125 is not shown in the figure. As shown in the figure, the first wire 1211, the second wire 1212, the third wire 1213, and the fourth wire 1214 of the wire assembly 121 are wound on the cylindrical elastic body 115 to protect the plural fibers 122 of the wire assembly 121 Then the covered wire is integrated into 121. In other words, referring to FIGS. 2 and 3 at the same time, the wound wire assembly 121 and the fiber 123, the fiber 122 and the protective layer 125 sequentially cover the cylindrical elastic body 115 from the inside to the outside.

Further, in this embodiment, the retractable wire body 110 is between the wire and the wire (for example, between the first wire 1211 and the fourth wire 1214) or between the sub-wire and the sub-wire (for example, between the sub-wire 1212A2). And the third sub-wire 1213A) further includes a plurality of fibers 123. The fibers 123 between the wires and the wires are, for example, cotton fiber, so as to further strengthen the strength of the telescopic wire body 110. As shown in Figure 3, a plurality of fibers 123 are substantially arranged between the respective wires or sub-wires of the wire assembly 121. In other words, each wire of the wire assembly 121 is entangled with a plurality of fibers 123, and the wire assembly 121 and the plurality of The fibers 123 are wound together around the cylindrical elastic body.

Fig. 4 shows a schematic diagram of the telescopic electrical connection line 100 of Fig. 1A in the region R2 according to an embodiment of the present disclosure. For the purpose of illustration, the housing 160 is not shown in the figure to show the expansion and contraction of the housing 160 The connection between the wire body 110 and the connection port 150A, and the metal belt 130 as a fixed structure disposed on the telescopic wire body 110.

As shown in Figure 4, the telescopic body 110 is connected to the connection port 150A by a connecting end, and the cylindrical elastic body 115 of the telescopic body 110 and the conductor 121 of the core layer 120 extend from the connecting end of the telescopic body 110 . In some embodiments, the cylindrical elastic body 115 may not extend from the connection end of the telescopic body 110. In some embodiments, the port 150A is, for example, a universal serial bus port (USB). In this embodiment, the connection port 150A has a circuit board 155. The circuit board 155 has a plurality of soldering points 156 and output parts 157. The circuit board 155 is disposed at the front end of the cylindrical elastic body 115, and the first wire 1211, the second wire 1212, the third wire 1213, and the fourth wire 1214 of the wire integration 121 are respectively connected to the welding points 156 on the circuit board 155.

The cylindrical elastic body 115 extends from the connecting end of the telescopic wire body 110, which is beneficial to maintain the extension of the wire integration 121. It can be noticed that the multiple fibers 122 and 123 of the core layer 120 do not extend to the circuit board 155 like the wire integration 121. This is because in this embodiment, the fibers 122 and 123 are not used for protection and strengthening structures. Besides, there is no function of transmitting information.

At a fixed position on the telescopic body 110 adjacent to the connecting end, there is a metal belt 130 as a fixed structure. In this embodiment. The arrangement of the metal band 130 can make the cylindrical elastic body 115 and the core wire layer 120 in the protective layer 125 relatively stationary. In the prior art, there are few flexible and stretchable connecting wires. In contrast, in the present disclosure, the core layer 120 is basically a wound cylindrical elastic body. When the cylindrical elastic body 115 is stretched and contracted, the cylindrical elastic body 115 and the core layer 120 are unexpectedly misaligned, which may cause the wire integration 121 of the core layer 120 to be driven, resulting in unexpected poor contact, which in turn causes signal transmission Is affected. In the present disclosure, the arrangement of the fixing structure can avoid the misalignment of the cylindrical elastic body 115 and the core wire layer 120, which is beneficial to the connection of the telescopic wire body 110 and the connection port 150A. In some embodiments, the metal tape 130 is, for example, a copper tape.

In this embodiment, the fixing structure uses a metal strap 130, which is arranged at a fixed position adjacent to the connecting end, and there is a distance d between the fixed position and the connecting end. In some embodiments, the fixed position refers to a position on the telescopic body 110 with a distance between 5 mm and 10 mm from the connecting end, and the corresponding distance d may be in the range of 5 mm to 10 mm. Between the range. The metal belt 130 presses the elastic body 110 from the periphery of the protective layer 125, so that the cylindrical elastic body 115 is recessed to have a recess 115c, and the conductor integration 121 part of the core wire layer 120 is accommodated in the recess of the cylindrical elastic body 115 Within 115c. In this way, the conductor assembly 121 of the core layer 120 will not move relative to the cylindrical elastic body 115 at a fixed position.

In some embodiments, substantially the fixing structure (such as the metal belt 130) only needs to fix the cylindrical elastic body 115 and the wire integration 121 of the core wire layer 120, so that the cylindrical elastic body 115 and the core wire layer 120 are relatively stationary at a fixed position. . In some embodiments, the protective layer 125 may not be fixed by the fixing structure, and only the cylindrical elastic body 115 and the core wire layer 120 are fixed by the fixing structure.

FIG. 5 shows a schematic diagram of the telescopic electrical connection line 100 in FIG. 1A in the region R2 according to another embodiment of the present disclosure. Compared with FIG. 4, the telescopic electrical connection cable 100 in FIG. 5 further includes a scratch-resistant tape 140. For example, the scratch-resistant tape 140 is, for example, a masking tape. Masking tape has the characteristics of strong tension resistance, high temperature resistance and good tearing without residual glue. The scratch-resistant tape 140 is also arranged at a fixed position and surrounds the telescopic body 110. As shown in FIG. 5, the scratch-resistant tape 140 has a width greater than that of the metal belt 130. After the anti-scratch tape 140 is pre-wrapped around the retractable wire body 110, the metal band 130 is then covered on the retractable wire body 110 to prevent the metal band 130 from accidentally damaging and scratching the retractable wire during the fixing process. The wires in the body 110 are integrated 121.

Specifically, in some embodiments, the telescopic electrical connection line 100 of FIG. 5 can be manufactured in the following manner.

In some embodiments, the stretchable wire body 110 may be prepared in advance, and has a cylindrical elastic body 115, a core wire layer 120, and a protective layer 125 as described above. The telescopic body 110 has a connecting end after being cut. After the connecting end is cut out by the stretchable thread body 110, it is at a fixed position adjacent to the connecting end. For example, the scratch-resistant tape 140 can be made of masking tape. At a distance of 5mm to 10mm from the connecting end, the covering width is 7mm. The scratch-resistant tape 140 is used to reserve an area that can be processed, and then a metal strip 130 with a width of 6 mm is riveted on the scratch-resistant tape 140 in the center. In some embodiments, the riveting height and riveting width of the metal band 130 are defined according to the specifications of the telescopic body 110. In other words, the metal band 130 is a metal structure formed by a riveting process to serve as a fixing structure for fixing the cylindrical elastic body 115, the core layer 120 and the protective layer 125.

After the riveting of the metal strip 130 is completed, processing is subsequently performed in the reserved processing area. Specifically, the protective layer 125 can be removed first. In some embodiments, the protective layer 125 may be woven from multiple fibers, which can protect the core layer 120. The removal of the protective layer 125 may be, for example, disassembling the fibers of the protective layer 125, so that the core layer 120 and the cylindrical elastic body 115 are extended. Furthermore, since the fibers 122 of the core layer 120 do not have a transmission function, the extended fibers 122 can be disassembled and cut off. In some embodiments, the disassembly of the protective layer 125 and the fibers 122 of the core layer 120 can be completed by mechanical equipment to save manpower and time. In some embodiments, it can also be done manually To disassemble, for example, use tweezers and other tools to reduce damage to the telescopic wire body 110.

In some embodiments, after the welding and riveting are completed, the flexible wire body 110 and the circuit board 155 of the connection port 150A can be glued and fixed. The riveting area is small, and there are very few silicone cylindrical elastic bodies 115 reserved in the front processing area. After the stretchable body 110 is stretched, the cylindrical elastic body 115 becomes smaller, and the stretchable body 110 may be riveted from a fixed position. In order to avoid this situation, the nip area can be separated by adding glue between the metal belt 130 in the riveting area and the telescopic body 110.

After the protective layer 125 and the fiber 122 are disassembled, the wire assembly 121 and the cylindrical elastic body 115 are exposed at one of the connecting ends of the telescopic body 110, and there is no fiber 122 wound with the wire assembly 121 outside the connecting end. Subsequently, the first wire 1211, the second wire 1212, the third wire 1213, and the fourth wire 1214 of the wire integration 121 are respectively connected to different soldering points 156 on the circuit board 155.

As indicated in Figure 5, in this embodiment, the solder joints 156 on the circuit board 155 include, for example, ground (GND), power supply (Vbus), and transmission solder joints (A6 and A7), and wires with the same function It can be twisted into a single strand and welded to the solder joint 156 to minimize the difficulty of soldering and reduce the risk of falling off of the solder joint 156. For example, as shown in Figure 5, the second wire 1212 is connected to the soldering point 156 for grounding. With reference to Figure 2, in this embodiment, the second wire 1212 is essentially composed of sub-wires 1212A1, 1212A2, and 1212B1. And group 1212B2 to make. Similarly, the third wire 1213 composed of the third sub-wires 1213A and 1213B is connected to the welding point 156 for power supply.

After the wire integration 121 and the welding point 156 are welded, the data can be transmitted through the output part 157 on the circuit board 155.

Please refer to Figure 6. FIG. 6 shows a schematic diagram of the telescopic electrical connection line 100 in FIG. 1A in the region R2 according to another embodiment of the present disclosure. Compared with FIG. 4, in FIG. 6, the metal tape 130 is not used for fixing, but a glue dispensing method is used instead to fill the inside of the protective layer 125 with glue to form the adhesive layer 126.

The adhesive layer 126 is located between the gap between the core layer 120 and the protective layer 125 and between the core layer 120 and the cylindrical elastic body 115. For the purpose of simple description, the adhesive layer 126 in FIG. 6 and subsequent FIG. 7 refers to the core layer 120 and the protective layer 125 area filled with the adhesive layer 126.

As shown in Figure 6, the glue used for dispensing is arranged at a fixed position adjacent to the connecting end of the telescopic body 110 to form an adhesive layer 126, and the adhesive layer 126 is filled in the core layer 120 (including the conductor integration 121 and the plural fibers 122) and the gap between the protective layer 125, the same can make the cylindrical elastic body 115, the core layer 120 and the protective layer 125 relative to each other at a fixed position.

In this embodiment, the glue used to dispense the adhesive layer 126 can also solidify and harden the area 116 of the cylindrical elastic body 115 of the silicone without stretching, which is more conducive to winding and fixing the integrated wire 121 on it. .

In some embodiments, in addition to the above-mentioned metal structure formed by riveting (for example, the metal tape 130) or the adhesive layer formed by dispensing, the fixing structure used for the telescopic electrical connection line 100 may also include injection molding. The resulting plastic structure. After the cylindrical elastic body 115 and the core wire layer 120 are set, the plastic can be placed on the fixed position of the telescopic body 110. After the plastic is cooled and molded, the cylindrical elastic body 115 and the core wire layer 120 can be in a fixed position. The effect of being relatively static. In some embodiments, the type of plastic used is such as polyvinyl chloride (PVC), polypropylene (PP), polyimide (PI), ABS resin (Acrylonitrile Butadiene Styrene), poly Polyamide (PA) and so on.

FIG. 7 shows a schematic diagram of the telescopic electrical connection line 100 in FIG. 1A in the region R2 according to another embodiment of the present disclosure. Compared with FIG. 6, the telescopic electrical connection wire 100 in FIG. 7 is also fixed by a metal strap 130. In some embodiments, as shown in FIG. 5, a scratch-resistant tape 140 may be further used for protection, and then the metal tape 130 may be combined with the metal tape 130 by glue dispensing for further fixing.

For example, in some embodiments, the method for manufacturing the retractable electrical connecting wire 100 covers the scratch-resistant tape 140 and completes the disassembly of the fibers 122 of the protective layer 125 and the core layer 120. The fibers at the front end of the scratch-resistant tape 140 122. An adhesive layer 126 is provided between the core layer 120 and the cylindrical elastic body 115 of silicone by dispensing. The disassembly of the protective layer 125 and the fibers 122 of the core layer 120 can prevent the adhesive layer 126 used for dispensing from overflowing. Affect the disassembly of the fiber 122 and the protective layer 125. An adhesive layer 126 is provided between the fiber 122 and the core layer 120, the core layer 120 and the cylindrical elastic body 115 of silicone by dispensing, which can fix the three to avoid relative movement.

When the glue is used for fixing, in some embodiments, since the retractable wire body 110 is stretchable, it can be processed by injection molding to further position the internal structure of the retractable wire body 110. For example, the telescopic wire body 110 can be placed in a mold for shaping. In some embodiments, the shape of the mold is, for example, a U-shaped wire groove. Since the cylindrical elastic body 115 of the stretchable wire body 110 is flexible, it can reduce the width of the U-shaped slot relative to the diameter of the stretchable wire body 110, so that the width of the U-shaped slot is smaller than the range of about 0mm to 0.2mm in diameter of the stretchable wire body 110. between. U-shaped wire grooves can be used to avoid damage to the telescopic wire body 110 during mold clamping and shaping. The diameter of the U-shaped slot is about 0.2mm relative to the telescopic wire body 110, so that the U-shaped slot is filled with the telescopic wire body 110 during shaping, which can prevent the telescopic wire body 110 from being stretched and deformed by the rubber material after the mold is closed and shaped. Glue.

After the fixing is completed, insulating glue can be placed on the circuit board 155 to further fix the connection between the telescopic wire body 110 and the connection port 150A, and prevent unexpected short circuits. In some embodiments, the housing 160 (as shown in FIG. 1) can completely accommodate and cover the circuit board 155 and the fixing structure (for example, the metal band 130 or the section fixed by glue).

For the embodiments where the processing area is longer and the shells such as assembled iron shells and outer shells are metal shells, the inner mold of the shell can be designed to add warp bars. Add warp bars to control all the core layer 120 in the telescopic body 110 in the glue position, Avoid unintended contact between the core layer 120 and the metal shell 160 and cause a short circuit.

Please refer to Figure 8 and Figure 9. FIG. 8 shows a top view of one end of a telescopic electrical connection line 200 according to another embodiment of the present disclosure. FIG. 9 is a schematic diagram of the telescopic electrical connection line 200 of FIG. 8 inside the region R3.

As shown in FIG. 8, one end of the telescopic electrical connection cable 200 includes a telescopic body 210 and a round terminal 250 as a connection port. Similar to the stretchable wire body 110 as described above, the stretchable wire body 210 includes a cylindrical elastic body 215, a core layer 220 and a protective layer 225, and the core layer 220 includes a plurality of wires and a plurality of fibers. The connection between the telescopic wire body 210 and the circular terminal 250 is covered by the sleeve 260.

Figure 9 further shows the inside of the sleeve 260. As shown in the figure, when the telescopic wire body 210 is connected to the round terminal 250, a metal band 230 is provided as a fixing structure on the telescopic wire body 210 near the round terminal 250 through the metal band 230. Part of the extended cylindrical elastic body 215 overlaps the circular terminal 250, and the wire of the core layer 220 is connected to the circular terminal 250 through a solder joint 255 formed by metal. The insulating glue area 270 is provided with the covering core wire layer 220 and the solder joints 255 to avoid any unintended conduction leading to short circuits.

In some embodiments, after welding and riveting are completed, an inner rubber sleeve 260 is put on the riveting area of the telescopic body 110, and it is baked with a hot air gun. When the inner rubber sleeve 260 is heated, the rubber particles inside the sleeve 260 melt, and The shrinkable body 110 is fully integrated, and after the sleeve 260 is shrunk, the riveting area at a fixed position and the telescopic body 210 can be fixed.

In summary, the present disclosure provides a telescopic electrical connection cable. The telescopic cable body is formed by spirally winding wires on a cylindrical elastic body, and the length can be changed in response to the applied force. In addition, by additionally providing a fixing structure to avoid misalignment of the inner cylindrical elastic body and the wire on the telescopic wire body, the wire and the cylindrical elastic body will be relatively stationary at the fixed position close to the connection port, effectively avoiding pulling on the telescopic electrical connection wire. In the process of stretching, the dislocation of the welding point and the wire, and avoiding the corresponding bad contact, will affect the signal transmission in the telescopic electrical connection line.

Although this disclosure has been disclosed in the above manner, it is not intended to limit the disclosure. Anyone with ordinary knowledge in the field can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, this disclosure The scope of protection shall be subject to the scope of the attached patent application.

110: Telescopic body

115: Cylinder elastomer

115c: depression

120: core layer

1211: first wire

1212: second wire

1213: third wire

1214: Fourth wire

125: protective layer

130: metal belt

150A: Port

155: circuit board

156: Welding Point

157: output

d: distance

Claims (10)

A telescopic electrical connection line, including: A telescopic body having a connecting end, wherein the telescopic body includes: A cylindrical elastic body; and A core wire layer having a plurality of wires and a plurality of fibers, wherein the wires and the fibers are entangled, the wires and the fibers surround the cylindrical elastic body in a spiral shape, and the wires extend out of the connecting end; and A connection port, wherein the wires of the telescopic body are connected to the connection port. The telescopic electrical connection line according to claim 1, wherein the telescopic cord body further comprises: A protective layer, wherein the wires and the fibers wound together by the stretchable wire body and the protective layer sequentially cover the cylindrical elastic body from the inside to the outside. The telescopic electrical connection line as described in claim 1, which further includes: A fixing structure is arranged on the telescopic wire body and adjacent to a fixed position of the connecting end, so that the cylindrical elastic body and the core wire layer are relatively static with each other at the fixed position. The telescopic electrical connection line according to claim 3, wherein the fixed position on the telescopic line body refers to a position between 1 mm and 15 mm away from the connecting end. The telescopic electrical connection wire according to claim 3, wherein the fixed structure on the telescopic wire body surrounds the cylindrical elastic body, the wires and the fibers of the telescopic wire body, and the fixed structure includes a metal structure, a Plastic structure or an adhesive layer. The telescopic electrical connection line according to claim 3, wherein the fixed structure is a metal belt, and the metal belt is arranged at the fixed position and surrounds the telescopic wire body, so that the cylindrical elastic body and the core wire layer are in the The inside of the metal band is at rest with each other. The telescopic electrical connection line according to claim 6, wherein the cylindrical elastic body has a recess at the fixed position, and the core wire layer is partially accommodated in the recess of the cylindrical elastic body. The telescopic electrical connection line according to claim 6, wherein the telescopic body further includes a protective layer surrounding the cylindrical elastic body and the core layer, and the metal belt further surrounds the protective layer. The telescopic electrical connection line according to claim 1, wherein the connection port includes: A circuit board connected to the telescopic wire body, wherein the circuit board includes a plurality of soldering points and an output part; and A shell housing the circuit board, wherein the shell has an opening to expose The output section, The cylindrical elastic body extends from the connecting end, the circuit board is arranged at the front end of the extended cylindrical elastic body, and the wires extend from the telescopic body and are respectively welded to the circuit board. These welding points. The telescopic electrical connection line according to claim 1, wherein the connection port is a round terminal, the cylindrical elastic body extends from the connecting end, and the round terminal is disposed on the extended cylindrical elastic body At the front end, the round terminal is electrically connected to the wires.

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