Flat shielded wire device

Abstract

The utility model provides a flat shielding wire device, comprising a flat shielding cable, the flat shielding cable comprises a core wire, a shielding layer and an insulating layer which are arranged from inside to outside in a wrapping manner, and a wiring section of the flat shielding cable does not comprise the insulating layer and the shielding layer so that the core wire is exposed; the rear end of the puncture type connector is provided with a wiring end and a puncture base, and the wiring end of the puncture type connector is connected with the puncture base to form a clamping cavity; and the outer mold shell is formed at the rear end of the puncture type connector and the wiring section of the flat shielding cable in an injection molding manner, so that the flat shielding cable and the puncture type connector form an integral structure. According to the flat shielded wire device provided by the invention, through designing the structures of the flat shielded cable, the puncture type connector and the outer mold shell, the flat shielded wire device which simplifies the connection process, enhances the connection stability and improves the product durability is realized.

Description

Technical Field

[0001] The present application relates to the technical field of connecting wires and connectors, and in particular to a flat shielding wire device. Background Art

[0002] Connectors are common electronic connectors, usually used for data and signal transmission. Taking the D-SUB connector as an example, it usually adopts an assembled structure, and the steps of assembling the shell are cumbersome. When the shell is fastened, the matching action between the screw and the screw hole of the connector body will be deflected, resulting in assembly failure, and repeated assembly wastes production time.

[0003] When the cable and the above connector are assembled into a shielded cable device, the connection stability is poor, the structure is complex and the production time is wasted. Based on this, the market urgently needs to provide a flat shielded cable device to solve the above problems. Summary of the invention

[0004] The purpose of the present application is to solve the problem in the prior art of lacking a shielding wire device that avoids poor assembly connection stability, complex structure and waste of production time.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a flat shielded cable device, comprising:

[0007] A flat shielded cable, the flat shielded cable comprising a core wire, a shielding layer and an insulating layer wrapped from the inside to the outside, wherein the wiring section of the flat shielded cable does not include the insulating layer and the shielding layer so that the core wire is exposed;

[0008] A piercing connector, wherein a terminal and a piercing base are provided at the rear end of the piercing connector, wherein the terminal and the piercing base are connected to form a clamping cavity, wherein the clamping cavity is used to clamp the wiring segment of the flat shielded cable so that the terminal of the piercing connector is electrically connected to the core wire of the flat shielded cable;

[0009] An outer mold shell is injection molded at the rear end of the piercing connector and the wiring section of the flat shielded cable so that the flat shielded cable and the piercing connector form an integral structure.

[0010] In some possible implementations, the flat shielded cable device further includes an inner mold structure, and the inner mold structure is injection molded on the wiring segment of the flat shielded cable and the rear end of the piercing connector.

[0011] In some possible implementations, the wiring segment of the flat shielded cable is disposed at an end of the flat shielded cable.

[0012] In some possible implementations, the wiring segment of the flat shielded cable is disposed in a middle segment of the flat shielded cable.

[0013] In some possible implementations, the flat shielded cable device further includes a cable sheath, and the flat shielded cables are arranged in parallel in the cable sheath with the wiring segment of the flat shielded cable as the center.

[0014] In some possible implementations, the flat shielded cable further includes a transition section, the transition section does not include an insulating layer to expose the shielding layer, and the transition section is connected to a connecting section of the flat shielded cable and is away from the piercing connector.

[0015] In some possible implementations, the flat shielded cable device further includes a copper foil structure, which covers the connecting section and the transition section of the flat shielded cable and the metal portion of the rear end of the piercing connector, so that the metal portion of the rear end of the piercing connector is electrically connected to the shielding layer of the connecting section;

[0016] The outer mold shell is simultaneously injection molded at the rear end of the piercing connector and the wiring section and transition section of the flat shielded cable, so that the flat shielded cable and the piercing connector form an integral structure.

[0017] In some possible implementations, the piercing connector is a piercing D-SUB connector.

[0018] In some possible implementations, the shielding layer is a copper mesh layer and a cotton paper layer arranged from the inside to the outside.

[0019] In some possible implementations, through holes and connecting screws are respectively provided on two side portions of the outer mold shell, and the through holes are used for the connecting screws to pass through.

[0020] The technical solution provided in the embodiments of the present application has the following beneficial effects: the clamping cavity of the piercing connector can firmly clamp the wiring segment of the flat shielded cable, ensuring the stability and reliability of the connection; the injection molding of the outer mold shell provides additional protection for the connector and the cable, enhances its mechanical strength and durability, and extends the service life of the product; the injection molded outer mold shell replaces the traditional assembled shell, and the above structure can reduce the tedious steps such as snapping the shell and tightening the screws during the assembly process, and has good stability; the injection molded outer mold shell can be customized to better adapt to the flat shielded cable, thereby expanding the scope of application of the connector.

[0021] To summarize, the technical solution provided in this embodiment realizes a flat shielded wire device that simplifies the connection process, enhances the connection stability and improves the durability of the product by designing the structure of a flat shielded cable, a piercing connector and an outer mold shell. The connection process is simple, thereby reducing the production time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 A partial structural schematic diagram of a flat shielded wire device proposed in this application;

[0024] Figure 2 A partial structural schematic diagram of a flat shielded wire device suitable for jumper application scenarios proposed in the present application;

[0025] Figure 3 A schematic diagram of a partial structure of a flat shielded cable proposed in this application;

[0026] Figure 4 A schematic diagram of the structure of a piercing connector and an outer mold housing proposed in this application;

[0027] Figure 5 A schematic diagram of the structure of a piercing connector and an inner mold structure proposed in this application;

[0028] Figure 6 A schematic diagram of the structure of a piercing connector and a connecting screw proposed in this application;

[0029] Figure 7 This is a schematic diagram of the copper foil structure connecting a flat shielded cable and a connector metal shell proposed in this application.

[0030] Illustration: 100, flat shielded cable; 110, core wire; 111, conductor; 112, inner insulation layer; 120, shielding layer; 121, copper mesh layer; 122, cotton paper layer; 130, insulation layer; 200, piercing connector; 210, terminal; 220, piercing base; 300, outer mold shell; 400, inner mold structure; 500, cable sheath; 600, connecting screws; 700, copper foil structure. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] Reference Figures 1 to 7 , an embodiment of the present application provides a flat shielded wire device, comprising:

[0033] A flat shielded cable 100, wherein the flat shielded cable 100 comprises a core wire 110, a shielding layer 120 and an insulating layer 130 which are arranged to be wrapped from the inside to the outside, wherein a wiring section of the flat shielded cable 100 does not include the insulating layer 130 and the shielding layer 120 so that the core wire 110 is exposed;

[0034] A piercing connector 200, wherein the rear end of the piercing connector 200 is provided with a wiring terminal 210 and a piercing base 220, wherein the wiring terminal 210 and the piercing base 220 of the piercing connector 200 are connected to form a clamping cavity, wherein the clamping cavity is used to clamp the wiring segment of the flat shielded cable 100, so that the wiring terminal 210 of the piercing connector 200 and the core wire 110 of the flat shielded cable 100 are electrically connected;

[0035] The outer mold housing 300 is injection molded at the rear end of the piercing connector 200 and the wiring section of the flat shielded cable 100 so that the flat shielded cable 100 and the piercing connector 200 form an integral structure.

[0036] The flat shielded cable 100 is composed of a core wire 110, a shielding layer 120 and an insulating layer 130. The core wire 110 may have multiple conductors 111 and an inner insulating layer 112 arranged outside the conductor 111 to achieve insulation between the conductors. In the wiring section, the insulating layer 130 and the shielding layer 120 are not included, so that the core wire 110 is exposed. The purpose of this design is to facilitate the connection with the terminal 210 of the piercing connector 200. The rear end of the piercing connector 200 is provided with a terminal 210 and a piercing base 220 to form a clamping cavity. Through the clamping cavity, the terminal 210 of the piercing connector 200 can firmly clamp the wiring section of the flat shielded cable 100 and achieve electrical connection with its core wire 110. The outer mold shell 300 is injection molded on the rear end of the piercing connector 200 and the wiring section of the flat shielded cable 100, fixing them together to form an integral structure. Injection molding of the outer mold housing 300 can provide additional protection for the connector and the cable, enhance their mechanical strength, and ensure the stability and reliability of the connection.

[0037] As a result, the clamping cavity of the piercing connector 200 can firmly clamp the wiring segment of the flat shielded cable 100, ensuring the stability and reliability of the connection; the injection molding of the outer mold shell 300 provides additional protection for the connector and cable, enhances its mechanical strength and durability, and extends the service life of the product; the injection-molded outer mold shell 300 replaces the traditional assembled shell, and the above structure can reduce the tedious steps of snapping the shell and tightening the screws during the assembly process, and has good stability; the injection-molded outer mold shell 300 can be customized to better adapt to the flat shielded cable 100, thereby expanding the scope of application of the connector.

[0038] To summarize, the technical solution provided in this embodiment realizes a flat shielded cable device that simplifies the connection process, enhances the connection stability and improves the durability of the product by designing the structure of the flat shielded cable 100, the piercing connector 200 and the outer mold shell 300. The connection process is simple, thereby reducing the production time.

[0039] Among them, the piercing connector 200 can be a piercing D-SUB connector. Different from general non-D-SUB connectors, D-SUB connectors can be used for data transmission and signal control connectors, have standardized interface designs, and are suitable for various devices and scenarios. The piercing D-SUB connector mentioned in this application is an improvement on the D-SUB connector, using a piercing connection method, thereby improving the efficiency and quality of the connection.

[0040] In one embodiment, the flat shielded cable device further includes an inner mold structure 400 , and the inner mold structure 400 is injection molded on the wiring section of the flat shielded cable 100 and the rear end of the piercing connector 200 .

[0041] The injection molding of the inner mold structure 400 is to further consolidate the structural stability and connection quality of the flat shielded cable device. Among them, the injection molding of the inner mold structure 400 firmly fixes the rear end of the connector and the wiring segment of the flat shielded cable 100 together to form an integral structure, which can effectively enhance the stability of the connector and prevent the connection from loosening due to external force or vibration during use. The injection molding of the inner mold structure 400 can ensure that the connection between the connector and the flat shielded cable 100 is tight and stable, thereby ensuring the stability and reliability of signal transmission. Users can be more assured when using the device without worrying about problems such as signal interruption or data loss caused by poor connection. Through the injection molding of the inner mold structure 400, the assembly process of the connector and the flat shielded cable 100 can be simplified to one step, reducing the assembly process and time, and improving production efficiency.

[0042] In summary, the injection molding of the inner mold structure 400 plays a role in stabilizing the connection, improving the connection quality and simplifying the manufacturing process in the flat shielded cable device, and effectively improves the overall performance and competitiveness of the product.

[0043] In one embodiment, the wiring section of the flat shielded cable 100 is disposed at the end of the flat shielded cable 100. The flat shielded cable device in this case is suitable for application scenarios without jumpers.

[0044] Except for special mold opening and customization, the tail of the existing assembled D-SUB connector shell is only suitable for ordinary round shielded wires. For the signal jumper design, that is, the design scheme that requires the use of two round shielded wires, the size of the tail hole of the shell and the wiring space are often greatly limited, which has a negative impact on the overall electrical design. When using round shielded wires, input and output transmission is usually carried out by welding or crimping a single terminal. The operating space inside the shell is limited, and the quality of welding and terminal crimping assembly needs to be focused on. The operator has many operating steps and the probability of error is high. Customized shell molds are opened for flat shielded wires, but the cost requirements are relatively high, and the processing nature is no different from that of ordinary assembled shells.

[0045] In one embodiment, the wiring section of the flat shielded cable 100 is disposed in the middle section of the flat shielded cable 100. The flat shielded cable device in this case is suitable for application scenarios with jumpers.

[0046] The flat shielded cable device further includes a cable sheath 500 , and the flat shielded cables 100 are arranged in parallel in the cable sheath 500 with the connection section of the flat shielded cable 100 as the center.

[0047] In this case, compared with the unfriendly design of the flat shielded cable 100 in the jumper application in the related art, the wiring section of the flat shielded cable 100 in this embodiment is set in the middle section, which means that the jumper can be easily connected in the middle of the wiring section, which is suitable for scenarios where it is necessary to lead out a jumper during the wiring process to connect other devices or signal sources. Due to the structural characteristics of the flat shielded cable, after using the integrated piercing connector 200, the signals between different control units connected by the flat shielded cable device can be jumpered by the same cable core wire 110, without the need for parallel connection or lap welding, etc., reducing the difficulty of operation and improving the operation efficiency. The volume of the flat shielded cable device after injection molding is flatter than the general ordinary assembled housing and cable structure, which can deal with the spatial interference problem that occurs when wiring inside some electrical cabinets.

[0048] The flat shielded cable device also includes a cable sheath 500, which is arranged in parallel inside the flat shielded cable 100 with its wiring segment as the center, which helps to protect the flat shielded cable 100 and its core wire 110 from the influence of the external environment and mechanical damage, and prolongs the service life of the cable. It can be considered that the wiring segment of the flat shielded cable 100 is leaked outside the cable sheath 500 to facilitate connection with the piercing connector 200.

[0049] In summary, the wiring section of the flat shielded cable 100 is set in the middle section, and the cable is protected by the cable sheath 500, which is suitable for application scenarios with jumpers and has the advantage of protecting the cable.

[0050] In one embodiment, the flat shielded cable 100 further includes a transition section, the transition section does not include the insulating layer 130 to expose the shielding layer 120 , and the transition section is connected to the connecting section of the flat shielded cable 100 and is away from the piercing connector 200 .

[0051] The transition section is a portion connecting the wiring sections of the flat shielded cable 100 , and the transition section does not include the insulating layer 130 so that the shielding layer 120 is exposed, which can ensure effective grounding of the shielding layer 120 and provide a good shielding effect.

[0052] In one embodiment, the flat shielded cable device further comprises a copper foil structure 700, wherein the copper foil structure 700 covers the connection section and transition section of the flat shielded cable 100 and the metal portion of the rear end of the piercing connector 200, so that the metal portion of the rear end of the piercing connector 200 is electrically connected to the shielding layer 120 of the connection section;

[0053] The outer mold housing 300 is simultaneously injection molded at the rear end of the piercing connector 200 and the wiring section and transition section of the flat shielded cable 100 so that the flat shielded cable 100 and the piercing connector 200 form an integral structure.

[0054] The copper foil structure 700 is a metal layer coated on the connection section and transition section and the rear metal part of the piercing connector 200, and its main function is to achieve electrical connection between the rear metal part of the piercing connector 200 and the shielding layer 120 of the connection section. The outer mold shell 300 is a shell component fixed to the rear end of the piercing connector 200 and the wiring section and transition section of the flat shielded cable 100 by injection molding, and its main function is to form an integral structure and effectively fix the flat shielded cable 100 and the piercing connector 200 together.

[0055] In one embodiment, the shielding layer 120 is a copper mesh layer 121 and a cotton paper layer 122 arranged from the inside to the outside. The copper mesh layer 121 is located on the inner side of the shielding layer 120, which can effectively shield external electromagnetic interference signals, protect the internal core wire 110 from external interference, and ensure the stability and reliability of signal transmission. The cotton paper layer 122 can absorb some noise and vibration, further enhancing the shielding effect.

[0056] At the same time, the overlapping arrangement of the copper mesh layer 121 and the cotton paper layer 122 forms a composite shielding structure, which enhances the structural stability of the flat shielded cable. This is because the copper mesh layer 121 as the inner layer provides good conductivity, while the cotton paper layer 122 increases the flexibility and durability of the overall cable, making the cable more durable and less susceptible to deformation or damage due to the external environment.

[0057] In one embodiment, through holes and connecting screws 600 are respectively provided on both sides of the outer mold housing 300, and the through holes are used for the connecting screws 600 to pass through. The provision of the through holes enables the outer mold housing 300 to be fixedly connected to other components through the connecting screws 600, so that the piercing connector 200 of the flat shielded wire device is more stable and reliable when connected to other devices.

[0058] To facilitate the understanding of the technical solution of the present application, the following provides a processing and assembly process of a flat shielded wire device to be protected by the present application:

[0059] 1. Perform front-end processing on the flat shielded cable 100. First, strip off a certain length of outer insulation, then tear off the cotton paper used for isolation to expose the shielding layer 120 composed of copper mesh, and cut off a certain length of copper mesh to expose the internal core wire 110.

[0060] 2. When not used for jumper connection, take the flat shielded cable 100, piercing connector 200 and piercing base 220 that have been processed at the front end, place the piercing base 220 in the groove of the crimping jig plate, neatly put in the flat shielded wire core 110, put in the piercing connector 200, align the rear end of the piercing connector 200 with the base in advance, place the jig plate under the knife die of the riveting machine, adjust the knife die height and air pressure, start the pneumatic knife die, and press down to complete the connection between the core wire 110 and the piercing connector 200.

[0061] 3. When used for jumper connection, the front-end processing of the flat shielded cable 100 needs to start from the middle section of the wire. Use the middle section of the wire as the connector crimping area, take the flat shielded wire, piercing D-SUB connector body and piercing base 220 that have been processed at the front end, place the piercing base 220 in the groove of the crimping jig plate, neatly put in the core wire 110 of the flat shielded cable 100, put in the rear end of the piercing connector 200, pre-align the rear end of the piercing connector 200 with the base, place the jig plate under the knife die of the riveting machine, adjust the knife die height and air pressure, start the pneumatic knife die, press down to complete the connection between the core wire 110 and the rear end of the piercing connector 200, fold the upper and lower ends of the flat shielded cable 100 in half, and assemble the sheath to ensure that there is no gap between the two layers of the flat shielded cable 100 before molding and the relative position is fixed.

[0062] 4. Take the crimped piercing connector 200, wrap it with an appropriate amount of copper foil to connect the metal part of the connector with the copper mesh of the shielded wire, weld the copper foil joints, place the piercing connector 200 in the inner mold cavity, adjust the temperature and pressure parameters of the injection molding machine, complete the inner mold injection molding, check whether the inner mold injection molding has any defects, and after checking, replace the outer mold injection molding machine for outer mold injection molding and screw assembly.

[0063] Using injection molding technology instead of assembled housing can reduce the number of operation steps and difficulty of operators when assembling the housing and tightening the screws, thereby improving operation efficiency. Due to the structural characteristics of the flat shielded wire, after using this technical solution, the signals between different control units can be jumpered by the same flat cable core wire 110, without the need for parallel connection or lap welding, thereby reducing operation difficulty and improving operation efficiency.

[0064] The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "corresponding to" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0065] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A flat shielded cable device, characterized in that: include: A flat shielded cable, the flat shielded cable comprising a core wire, a shielding layer and an insulating layer wrapped from the inside to the outside, wherein the wiring section of the flat shielded cable does not include the insulating layer and the shielding layer so that the core wire is exposed; A piercing connector, wherein a terminal and a piercing base are provided at the rear end of the piercing connector, wherein the terminal and the piercing base are connected to form a clamping cavity, wherein the clamping cavity is used to clamp the wiring segment of the flat shielded cable so that the terminal of the piercing connector is electrically connected to the core wire of the flat shielded cable; An outer mold shell is injection molded at the rear end of the piercing connector and the wiring section of the flat shielded cable so that the flat shielded cable and the piercing connector form an integral structure.

2. The flat shielded cable device according to claim 1, wherein: The flat shielded cable device further comprises an inner mold structure, which is injection molded on the wiring section of the flat shielded cable and the rear end of the piercing connector.

3. The flat shielded cable device according to claim 2, characterized in that: The wiring section of the flat shielded cable is arranged at the end of the flat shielded cable.

4. The flat shielded cable device according to claim 2, wherein: The connection section of the flat shielded cable is arranged in the middle section of the flat shielded cable.

5. The flat shielded cable device according to claim 4, characterized in that The flat shielded cable device further includes a cable sheath, and the flat shielded cables are arranged in parallel in the cable sheath with the wiring segment of the flat shielded cable as the center.

6. The flat shielded cable device according to claim 2, wherein: The flat shield cable further includes a transition section, which does not include an insulating layer to expose the shield layer, and the transition section is connected to a connecting section of the flat shield cable and is away from the piercing connector.

7. The flat shielded cable device according to claim 6, characterized in that The flat shielded cable device further comprises a copper foil structure, the copper foil structure covers the connection section and transition section of the flat shielded cable and the metal part of the rear end of the piercing connector, so that the metal part of the rear end of the piercing connector is electrically connected to the shielding layer of the connection section; The outer mold shell is simultaneously injection molded at the rear end of the piercing connector and the wiring section and transition section of the flat shielded cable, so that the flat shielded cable and the piercing connector form an integral structure.

8. The flat shielded cable device according to claim 1, wherein: The piercing type connector is a piercing type D-SUB connector.

9. The flat shielded cable device according to claim 1, wherein: The shielding layer is a copper mesh layer and a cotton paper layer arranged from the inside to the outside.

10. The flat shielded cable device according to claim 1, wherein: Through holes and connecting screws are respectively provided on both side portions of the outer mold shell, and the through holes are used for the connecting screws to pass through.

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