Data line structure convenient to process and form

Abstract

The utility model discloses a data line structure convenient to process and form, which comprises a wire rod, a connecting terminal and an insulating wrapping structure wrapped at the welding position of the wire rod and the connecting terminal, the insulation wrapping structure is characterized in that the insulation wrapping structure comprises an injection molding inner mold which is formed through injection molding filling and wraps the butt welding position of the wire and the connecting position, a metal sleeve shell arranged on the injection molding inner mold in a sleeved mode, an insulation outer shell arranged on the metal sleeve shell in a sleeved mode and a wire bunching outer mold which is filled between the tail of the wire and the insulation outer shell through secondary injection molding. According to the utility model, the metal sleeve shell and the insulating shell are configured into the structure of the assembly, and the metal sleeve shell is directly limited through the cooperative use of the first limiting boss and the second limiting boss, so that the traditional mode of fixing the metal sleeve shell through re-injection molding is canceled, and the process is simplified; and a positioning groove is reserved in the insulating shell, so that the insulating shell and a secondary injection mold can be quickly positioned, fixing is achieved, the overall machining process is very simple, and batch production is facilitated. The practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of data lines, in particular to a data line structure that is easy to process and shape. Background Art

[0002] Data cables generally have two interfaces, which are mainly used for power transmission and data transmission. They are of various types and widely used, such as connecting hardware devices such as hard disks, optical drives, and card readers to motherboards. Among them, with the widespread popularity of various electronic devices, the most commonly used ones are charging data cables, such as type-c data cables, USB-C to Lightning, etc.

[0003] Generally, a charging data cable includes a terminal, a wire and an insulating protective layer. The terminal has a PCB board, and the wire has multiple core wires. The core wires are used for power and data transmission. The initial data cable process is generally to weld the core wire to the PCB board, and then cover the connection with a two-piece steel sleeve. After the steel sleeve is fixed by spot welding, a plastic ring is put on the first end to fix it, and white injection molding is performed on the other end. Finally, an insulating shell is put on the outside. Such a structural design makes the overall processing flow very complicated, and it is easy to burn the core wire and the terminal due to excessive temperature during injection molding. , the product yield is low; the current popular process flow on the market is generally to weld the core wire to the PCB board, directly inject and fill the injection-molded inner shell, then put on the metal shell, and then inject the injection-molded outer shell for the second time. The metal shell plays a role of high temperature resistance to prevent the injection-molded inner shell from being melted due to excessive temperature during the second injection molding. Such structural design and processing is obviously easier to form than the first molding method. Then, such processing steps mainly rely on injection molding. Each injection molding needs to position the accessories in advance, which is not as convenient as the assembled kit. The production capacity is low and it is not suitable for mass production needs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a data cable structure that is easy to process and shape.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a data cable structure that is easy to process and form, including a wire, a connecting terminal, and an insulating wrapping structure coated on the welding point between the wire and the connecting terminal, characterized in that: the insulating wrapping structure includes an injection molding inner mold that is molded by injection molding and wrapped around the welding point between the wire and the connection, a metal shell sleeved on the injection molding inner mold, an insulating shell sleeved on the metal shell, and a wire bundle outer mold filled between the tail of the wire and the insulating shell by secondary injection molding.

[0006] In a further technical solution, the injection inner mold has a first limiting boss, and when the metal sleeve is sleeved on the outer side of the injection inner mold, the first limiting boss abuts against the first end of the metal sleeve to limit the metal sleeve.

[0007] In a further technical solution, the insulating shell has a second limiting boss, and when the insulating shell is sleeved on the outside of the metal shell, the second limiting boss abuts against the first end of the metal shell to limit the metal shell.

[0008] In a further technical solution, the insulating shell includes a main shell and a wiring harness head axially extending from the main shell, the inner wall of the main shell is formed with the second limiting boss, the insulating shell is inserted into the insulating shell from one end of the wiring harness head until the second end of the metal shell contacts the second limiting boss of the main shell, and the wiring harness head is wrapped around the outside of the tail of the wire.

[0009] In a further technical solution, the housing has a first jack connected to the second limiting boss, the wiring harness head has a second jack connected to the second limiting boss, and the size of the first jack is adapted to the connection terminal.

[0010] In a further technical solution, the outer wall of the cable harness head is formed with a plurality of positioning grooves that can be positioned and matched with an external injection mold.

[0011] In a further technical solution, the wiring harness head is formed with a plurality of injection-molded through holes.

[0012] In a further technical solution, the insulating shell is configured as a transparent insulating shell.

[0013] In a further technical solution, the insulating shell is configured as a plastic insulating shell.

[0014] In a further technical solution, the number of the connecting terminals is set to two, one connecting terminal is configured as a data interface and the other connecting terminal is configured as a charging interface, the data interface and the charging interface are respectively welded at both ends of the wire, and the butt welding point between the wire and the data interface and the butt welding point between the wire and the charging interface are both provided with the insulating wrapping structure.

[0015] After adopting the above structure, the utility model has the following advantages compared with the prior art:

[0016] 1. Compared with the traditional data cable kit, the utility model adds a metal casing to protect the injection inner mold and terminal parts from high temperature and prevent secondary injection from burning.

[0017] 2. The metal sleeve and the insulating shell are configured as an assembly structure, and the metal sleeve is directly limited by the first limiting boss and the second limiting boss, eliminating the traditional method of fixing the metal sleeve by injection molding again, simplifying the process, and secondly, the positioning groove reserved in the insulating shell can be quickly positioned with the secondary injection mold to achieve fixation, so that the overall processing process is very simple and convenient for mass production. High practicality.

[0018] 3. The insulating shell is set to be a transparent structure, allowing users to see through the internal structure, and combined with the electroplating color of the metal shell, it brings a better visual experience, and the overall structure is novel and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure decomposition of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model after the outer mold of the wire harness is hidden;

[0023] Figure 4 It is a cross-sectional schematic diagram of the metal casing, the insulating shell, and the injection mold after assembly;

[0024] Figure 5 It is a schematic diagram of the structure of the insulating shell. DETAILED DESCRIPTION

[0025] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0026] like Figures 1 to 5 As shown, the utility model provides a data cable structure that is easy to process and form, including a wire 1, a connecting terminal 2, and an insulating wrapping structure 3 coated on the welding point between the wire 1 and the connecting terminal 2, the insulating wrapping structure 3 includes an injection molding inner mold 30 that is molded by injection molding and wrapped around the welding point between the wire 1 and the connecting point, a metal shell 31 sleeved on the injection molding inner mold 30, an insulating shell 32 sleeved on the metal shell 31, and a wire bundle outer mold 33 filled between the tail of the wire 1 and the insulating shell 32 by secondary injection molding.

[0027] During processing, first, each core wire of the wire 1 is welded to the PCB board of the connecting terminal 2 to achieve electrical conduction. Then, the welding point between the wire 1 and the connecting terminal 2 is placed in a primary injection mold, and an injection inner mold 30 is formed around the power line and the PCB board by injection molding. The injection inner mold 30 mainly plays the role of covering insulation. Then, the metal shell 31 and the insulating shell 32 are directly inserted in sequence. The metal shell 31 is sleeved on the outside of the injection inner mold 30, and the insulating shell 32 is sleeved on the outside of the metal shell 31. In this way, the metal shell 31 is maintained between the insulating shell 32 and the injection inner mold 30, and there is no need to continue to fix it. Finally, a secondary injection molding is used to fill in the gaps between the tail of the wire 1 and the insulating shell 32 to form a wire bundling outer mold 33, which plays the role of bundling and covering insulation for the tail of the wire 1.

[0028] The metal shell 31 has the advantage of high temperature resistance, can absorb part of the heat, and can effectively protect the inner injection mold 30 to prevent the inner injection mold 30 and the connection terminal 2 from being burned during the subsequent secondary injection molding of the harness outer mold 33 .

[0029] The metal casing 31 and the insulating shell 32 of the utility model are both arranged as assembly parts, which can be directly sleeved on and injection molded without fixing. Compared with the traditional data line structure, the processing and molding process is simpler and convenient for mass production.

[0030] In this embodiment, the injection inner mold 30 has a first limiting boss 300 , and the insulating shell 32 has a second limiting boss 3200 .

[0031] During specific assembly, the metal shell 31 is firstly sleeved on the outside of the injection inner mold 30 until the first limiting boss 300 abuts against the first end of the metal shell 31 to limit the metal shell 31; then, the insulating shell 32 is sleeved on the outside of the metal shell 31 until the second limiting boss 3200 abuts against the second end of the metal shell 31 to limit the metal shell 31; in this way, the metal shell 31 does not need additional positioning and limiting, that is, it can keep the position fixed, and the assembly is very simple.

[0032] In a more specific solution, the insulating shell 32 includes a main shell 320 and a cable tie head 321 axially extending from the main shell 320 , and the inner wall of the main shell 320 is formed with the second limiting boss 3200 .

[0033] During assembly, the insulating shell 32 is inserted into the outer side of the insulating shell 32 from one end of the wire head 321 until the second end of the metal shell 31 abuts against the second limiting boss 3200 of the shell 320. In this way, the wire head 321 covers the outer side of the tail of the wire 1.

[0034] The outer wall of the cable tie head 321 is formed with a plurality of positioning grooves 3211 that can be positioned and matched with an external injection mold.

[0035] When the insulating shell 32 is put on, it can be quickly fixed to the insulating shell 32 by aligning it with the external secondary injection mold through the positioning groove 3211, so as to facilitate injection molding of the wire harness outer mold 33. After the secondary injection molding, the insulating shell 32 and the wire harness outer mold 33 are fixed together.

[0036] In a further technical solution, the housing 320 has a first jack 3201 connected to the second limiting boss 3200 , the wiring harness head 321 has a second jack 3210 connected to the second limiting boss 3200 , and the size of the first jack 3201 is adapted to the connection terminal 2 .

[0037] Specifically, when the insulating housing 32 is inserted, it is inserted from the second plug hole 3210 until the second end of the metal housing 31 abuts against the second limiting boss 3200 . At this time, the first plug hole 3201 is matched with the connecting terminal 2 .

[0038] In a more specific embodiment, the harness head 321 is formed with a plurality of injection through holes 3212 to facilitate secondary injection molding.

[0039] Preferably, the insulating shell 32 is configured as a transparent insulating shell 32. The internal structure of the data line can be seen through the transparent structural design, which has a better visual effect. In addition, the metal shell 31 can be electroplated into a specified color through an electroplating process, which is matched with the transparent insulating shell 32, and the visual effect is better, and the overall appearance is more beautiful.

[0040] Specifically, the insulating shell 32 is configured as a plastic insulating shell 32, such as a TPE plastic product, which has a certain degree of transparency and is wear-resistant.

[0041] More specifically, in this embodiment, the number of the connection terminals 2 is set to two, one connection terminal 2 is configured as a data interface, and the other connection terminal 2 is configured as a charging interface, the data interface and the charging interface are respectively welded at both ends of the wire 1, and the butt welding of the wire 1 and the data interface and the butt welding of the wire 1 and the charging interface are both provided with the insulating wrapping structure 3. That is, the insulating wrapping structure of the utility model can be generally used in the assembly process of the data interface or the charging interface, and has high versatility.

[0042] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A data cable structure that is easy to process and shape, comprising a wire (1), a connecting terminal (2), and an insulating wrapping structure (3) coated on the welding point between the wire (1) and the connecting terminal (2), characterized in that: The insulating wrapping structure (3) comprises an injection molding inner mold (30) which is molded by injection molding and wraps around the butt welding point between the wire (1) and the connection point, a metal casing (31) sleeved on the injection molding inner mold (30), an insulating casing (32) sleeved on the metal casing (31), and a wire bundle outer mold (33) which is filled between the tail of the wire (1) and the insulating casing (32) by secondary injection molding.

2. The data cable structure that is easy to process and shape according to claim 1, characterized in that: The injection inner mold (30) has a first limiting boss (300). When the metal sleeve (31) is sleeved on the outside of the injection inner mold (30), the first limiting boss (300) contacts the first end of the metal sleeve (31) to limit the metal sleeve (31).

3. The data cable structure that is easy to process and shape according to claim 1, characterized in that: The insulating shell (32) has a second limiting boss (3200). When the insulating shell (32) is sleeved on the outside of the metal shell (31), the second limiting boss (3200) contacts the first end of the metal shell (31) to limit the metal shell (31).

4. The data cable structure that is easy to process and shape according to claim 3, characterized in that: The insulating shell (32) comprises a main shell (320) and a wiring head (321) axially extending from the main shell (320); the inner wall of the main shell (320) is formed with the second limiting boss (3200); the insulating shell (32) is inserted into the metal shell (31) from one end of the wiring head (321) until the second end of the metal shell (31) contacts the second limiting boss (3200) of the main shell (320); and the wiring head (321) is wrapped around the outer side of the tail of the wire (1).

5. The data line structure that is easy to process and shape according to claim 4, characterized in that: The housing (320) has a first jack (3201) connected to the second limiting boss (3200), the wiring harness head (321) has a second jack (3210) connected to the second limiting boss (3200), and the size of the first jack (3201) is compatible with the connection terminal (2).

6. The data line structure that is easy to process and shape according to claim 4, characterized in that: The outer wall of the cable bundle head (321) is formed with a plurality of positioning grooves (3211) that can be positioned and matched with an external injection mold.

7. The data line structure that is easy to process and shape according to claim 4, characterized in that: The wiring harness head (321) is formed with a plurality of injection-molded through holes (3212).

8. The data cable structure that is easy to process and shape according to claim 1, characterized in that: The insulating shell (32) is configured as a transparent insulating shell (32).

9. The data line structure that is easy to process and shape according to claim 1, characterized in that: The insulating shell (32) is configured as a plastic insulating shell (32).

10. The data cable structure that is easy to process and shape according to claim 1, characterized in that: The number of the connecting terminals (2) is set to two, one connecting terminal (2) is configured as a data interface, and the other connecting terminal (2) is configured as a charging interface, the data interface and the charging interface are respectively welded to the two ends of the wire (1), and the butt welding point between the wire (1) and the data interface and the butt welding point between the wire (1) and the charging interface are both provided with the insulating wrapping structure (3).

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